Convert tests to text-size

68 files changed, 9435 insertions, 9435 deletions

diff --git a/crates/ra_syntax/test_data/parser/ok/0000_empty.rast b/crates/ra_syntax/test_data/parser/ok/0000_empty.rast
index 08f5a942f..6b234b0b2 100644
--- a/crates/ra_syntax/test_data/parser/ok/0000_empty.rast
+++ b/crates/ra_syntax/test_data/parser/ok/0000_empty.rast
@@ -1 +1 @@
-SOURCE_FILE@[0; 0)
+SOURCE_FILE@0..0
diff --git a/crates/ra_syntax/test_data/parser/ok/0001_struct_item.rast b/crates/ra_syntax/test_data/parser/ok/0001_struct_item.rast
index fdc2d6768..705f7e001 100644
--- a/crates/ra_syntax/test_data/parser/ok/0001_struct_item.rast
+++ b/crates/ra_syntax/test_data/parser/ok/0001_struct_item.rast
@@ -1,39 +1,39 @@
-SOURCE_FILE@[0; 32)
-  STRUCT_DEF@[0; 31)
-    STRUCT_KW@[0; 6) "struct"
-    WHITESPACE@[6; 7) " "
-    NAME@[7; 8)
-      IDENT@[7; 8) "S"
-    TYPE_PARAM_LIST@[8; 17)
-      L_ANGLE@[8; 9) "<"
-      TYPE_PARAM@[9; 16)
-        NAME@[9; 10)
-          IDENT@[9; 10) "T"
-        COLON@[10; 11) ":"
-        WHITESPACE@[11; 12) " "
-        TYPE_BOUND_LIST@[12; 16)
-          TYPE_BOUND@[12; 16)
-            PATH_TYPE@[12; 16)
-              PATH@[12; 16)
-                PATH_SEGMENT@[12; 16)
-                  NAME_REF@[12; 16)
-                    IDENT@[12; 16) "Copy"
-      R_ANGLE@[16; 17) ">"
-    WHITESPACE@[17; 18) " "
-    RECORD_FIELD_DEF_LIST@[18; 31)
-      L_CURLY@[18; 19) "{"
-      WHITESPACE@[19; 24) "\n    "
-      RECORD_FIELD_DEF@[24; 28)
-        NAME@[24; 25)
-          IDENT@[24; 25) "f"
-        COLON@[25; 26) ":"
-        WHITESPACE@[26; 27) " "
-        PATH_TYPE@[27; 28)
-          PATH@[27; 28)
-            PATH_SEGMENT@[27; 28)
-              NAME_REF@[27; 28)
-                IDENT@[27; 28) "T"
-      COMMA@[28; 29) ","
-      WHITESPACE@[29; 30) "\n"
-      R_CURLY@[30; 31) "}"
-  WHITESPACE@[31; 32) "\n"
+SOURCE_FILE@0..32
+  STRUCT_DEF@0..31
+    STRUCT_KW@0..6 "struct"
+    WHITESPACE@6..7 " "
+    NAME@7..8
+      IDENT@7..8 "S"
+    TYPE_PARAM_LIST@8..17
+      L_ANGLE@8..9 "<"
+      TYPE_PARAM@9..16
+        NAME@9..10
+          IDENT@9..10 "T"
+        COLON@10..11 ":"
+        WHITESPACE@11..12 " "
+        TYPE_BOUND_LIST@12..16
+          TYPE_BOUND@12..16
+            PATH_TYPE@12..16
+              PATH@12..16
+                PATH_SEGMENT@12..16
+                  NAME_REF@12..16
+                    IDENT@12..16 "Copy"
+      R_ANGLE@16..17 ">"
+    WHITESPACE@17..18 " "
+    RECORD_FIELD_DEF_LIST@18..31
+      L_CURLY@18..19 "{"
+      WHITESPACE@19..24 "\n    "
+      RECORD_FIELD_DEF@24..28
+        NAME@24..25
+          IDENT@24..25 "f"
+        COLON@25..26 ":"
+        WHITESPACE@26..27 " "
+        PATH_TYPE@27..28
+          PATH@27..28
+            PATH_SEGMENT@27..28
+              NAME_REF@27..28
+                IDENT@27..28 "T"
+      COMMA@28..29 ","
+      WHITESPACE@29..30 "\n"
+      R_CURLY@30..31 "}"
+  WHITESPACE@31..32 "\n"
diff --git a/crates/ra_syntax/test_data/parser/ok/0002_struct_item_field.rast b/crates/ra_syntax/test_data/parser/ok/0002_struct_item_field.rast
index ef34702fd..a1d546491 100644
--- a/crates/ra_syntax/test_data/parser/ok/0002_struct_item_field.rast
+++ b/crates/ra_syntax/test_data/parser/ok/0002_struct_item_field.rast
@@ -1,22 +1,22 @@
-SOURCE_FILE@[0; 25)
-  STRUCT_DEF@[0; 25)
-    STRUCT_KW@[0; 6) "struct"
-    WHITESPACE@[6; 7) " "
-    NAME@[7; 8)
-      IDENT@[7; 8) "S"
-    WHITESPACE@[8; 9) " "
-    RECORD_FIELD_DEF_LIST@[9; 25)
-      L_CURLY@[9; 10) "{"
-      WHITESPACE@[10; 15) "\n    "
-      RECORD_FIELD_DEF@[15; 23)
-        NAME@[15; 18)
-          IDENT@[15; 18) "foo"
-        COLON@[18; 19) ":"
-        WHITESPACE@[19; 20) " "
-        PATH_TYPE@[20; 23)
-          PATH@[20; 23)
-            PATH_SEGMENT@[20; 23)
-              NAME_REF@[20; 23)
-                IDENT@[20; 23) "u32"
-      WHITESPACE@[23; 24) "\n"
-      R_CURLY@[24; 25) "}"
+SOURCE_FILE@0..25
+  STRUCT_DEF@0..25
+    STRUCT_KW@0..6 "struct"
+    WHITESPACE@6..7 " "
+    NAME@7..8
+      IDENT@7..8 "S"
+    WHITESPACE@8..9 " "
+    RECORD_FIELD_DEF_LIST@9..25
+      L_CURLY@9..10 "{"
+      WHITESPACE@10..15 "\n    "
+      RECORD_FIELD_DEF@15..23
+        NAME@15..18
+          IDENT@15..18 "foo"
+        COLON@18..19 ":"
+        WHITESPACE@19..20 " "
+        PATH_TYPE@20..23
+          PATH@20..23
+            PATH_SEGMENT@20..23
+              NAME_REF@20..23
+                IDENT@20..23 "u32"
+      WHITESPACE@23..24 "\n"
+      R_CURLY@24..25 "}"
diff --git a/crates/ra_syntax/test_data/parser/ok/0004_file_shebang.rast b/crates/ra_syntax/test_data/parser/ok/0004_file_shebang.rast
index e3915c2df..67e21df13 100644
--- a/crates/ra_syntax/test_data/parser/ok/0004_file_shebang.rast
+++ b/crates/ra_syntax/test_data/parser/ok/0004_file_shebang.rast
@@ -1,2 +1,2 @@
-SOURCE_FILE@[0; 20)
-  SHEBANG@[0; 20) "#!/use/bin/env rusti"
+SOURCE_FILE@0..20
+  SHEBANG@0..20 "#!/use/bin/env rusti"
diff --git a/crates/ra_syntax/test_data/parser/ok/0005_fn_item.rast b/crates/ra_syntax/test_data/parser/ok/0005_fn_item.rast
index 955b789b5..993ba72b6 100644
--- a/crates/ra_syntax/test_data/parser/ok/0005_fn_item.rast
+++ b/crates/ra_syntax/test_data/parser/ok/0005_fn_item.rast
@@ -1,16 +1,16 @@
-SOURCE_FILE@[0; 13)
-  FN_DEF@[0; 12)
-    FN_KW@[0; 2) "fn"
-    WHITESPACE@[2; 3) " "
-    NAME@[3; 6)
-      IDENT@[3; 6) "foo"
-    PARAM_LIST@[6; 8)
-      L_PAREN@[6; 7) "("
-      R_PAREN@[7; 8) ")"
-    WHITESPACE@[8; 9) " "
-    BLOCK_EXPR@[9; 12)
-      BLOCK@[9; 12)
-        L_CURLY@[9; 10) "{"
-        WHITESPACE@[10; 11) "\n"
-        R_CURLY@[11; 12) "}"
-  WHITESPACE@[12; 13) "\n"
+SOURCE_FILE@0..13
+  FN_DEF@0..12
+    FN_KW@0..2 "fn"
+    WHITESPACE@2..3 " "
+    NAME@3..6
+      IDENT@3..6 "foo"
+    PARAM_LIST@6..8
+      L_PAREN@6..7 "("
+      R_PAREN@7..8 ")"
+    WHITESPACE@8..9 " "
+    BLOCK_EXPR@9..12
+      BLOCK@9..12
+        L_CURLY@9..10 "{"
+        WHITESPACE@10..11 "\n"
+        R_CURLY@11..12 "}"
+  WHITESPACE@12..13 "\n"
diff --git a/crates/ra_syntax/test_data/parser/ok/0006_inner_attributes.rast b/crates/ra_syntax/test_data/parser/ok/0006_inner_attributes.rast
index 308b5680f..42587243a 100644
--- a/crates/ra_syntax/test_data/parser/ok/0006_inner_attributes.rast
+++ b/crates/ra_syntax/test_data/parser/ok/0006_inner_attributes.rast
@@ -1,184 +1,184 @@
-SOURCE_FILE@[0; 236)
-  ATTR@[0; 8)
-    POUND@[0; 1) "#"
-    BANG@[1; 2) "!"
-    L_BRACK@[2; 3) "["
-    PATH@[3; 7)
-      PATH_SEGMENT@[3; 7)
-        NAME_REF@[3; 7)
-          IDENT@[3; 7) "attr"
-    R_BRACK@[7; 8) "]"
-  WHITESPACE@[8; 9) "\n"
-  ATTR@[9; 23)
-    POUND@[9; 10) "#"
-    BANG@[10; 11) "!"
-    L_BRACK@[11; 12) "["
-    PATH@[12; 16)
-      PATH_SEGMENT@[12; 16)
-        NAME_REF@[12; 16)
-          IDENT@[12; 16) "attr"
-    TOKEN_TREE@[16; 22)
-      L_PAREN@[16; 17) "("
-      TRUE_KW@[17; 21) "true"
-      R_PAREN@[21; 22) ")"
-    R_BRACK@[22; 23) "]"
-  WHITESPACE@[23; 24) "\n"
-  ATTR@[24; 39)
-    POUND@[24; 25) "#"
-    BANG@[25; 26) "!"
-    L_BRACK@[26; 27) "["
-    PATH@[27; 31)
-      PATH_SEGMENT@[27; 31)
-        NAME_REF@[27; 31)
-          IDENT@[27; 31) "attr"
-    TOKEN_TREE@[31; 38)
-      L_PAREN@[31; 32) "("
-      IDENT@[32; 37) "ident"
-      R_PAREN@[37; 38) ")"
-    R_BRACK@[38; 39) "]"
-  WHITESPACE@[39; 40) "\n"
-  ATTR@[40; 116)
-    POUND@[40; 41) "#"
-    BANG@[41; 42) "!"
-    L_BRACK@[42; 43) "["
-    PATH@[43; 47)
-      PATH_SEGMENT@[43; 47)
-        NAME_REF@[43; 47)
-          IDENT@[43; 47) "attr"
-    TOKEN_TREE@[47; 115)
-      L_PAREN@[47; 48) "("
-      IDENT@[48; 53) "ident"
-      COMMA@[53; 54) ","
-      WHITESPACE@[54; 55) " "
-      INT_NUMBER@[55; 58) "100"
-      COMMA@[58; 59) ","
-      WHITESPACE@[59; 60) " "
-      TRUE_KW@[60; 64) "true"
-      COMMA@[64; 65) ","
-      WHITESPACE@[65; 66) " "
-      STRING@[66; 72) "\"true\""
-      COMMA@[72; 73) ","
-      WHITESPACE@[73; 74) " "
-      IDENT@[74; 79) "ident"
-      WHITESPACE@[79; 80) " "
-      EQ@[80; 81) "="
-      WHITESPACE@[81; 82) " "
-      INT_NUMBER@[82; 85) "100"
-      COMMA@[85; 86) ","
-      WHITESPACE@[86; 87) " "
-      IDENT@[87; 92) "ident"
-      WHITESPACE@[92; 93) " "
-      EQ@[93; 94) "="
-      WHITESPACE@[94; 95) " "
-      STRING@[95; 102) "\"hello\""
-      COMMA@[102; 103) ","
-      WHITESPACE@[103; 104) " "
-      IDENT@[104; 109) "ident"
-      TOKEN_TREE@[109; 114)
-        L_PAREN@[109; 110) "("
-        INT_NUMBER@[110; 113) "100"
-        R_PAREN@[113; 114) ")"
-      R_PAREN@[114; 115) ")"
-    R_BRACK@[115; 116) "]"
-  WHITESPACE@[116; 117) "\n"
-  ATTR@[117; 130)
-    POUND@[117; 118) "#"
-    BANG@[118; 119) "!"
-    L_BRACK@[119; 120) "["
-    PATH@[120; 124)
-      PATH_SEGMENT@[120; 124)
-        NAME_REF@[120; 124)
-          IDENT@[120; 124) "attr"
-    TOKEN_TREE@[124; 129)
-      L_PAREN@[124; 125) "("
-      INT_NUMBER@[125; 128) "100"
-      R_PAREN@[128; 129) ")"
-    R_BRACK@[129; 130) "]"
-  WHITESPACE@[130; 131) "\n"
-  ATTR@[131; 155)
-    POUND@[131; 132) "#"
-    BANG@[132; 133) "!"
-    L_BRACK@[133; 134) "["
-    PATH@[134; 138)
-      PATH_SEGMENT@[134; 138)
-        NAME_REF@[134; 138)
-          IDENT@[134; 138) "attr"
-    TOKEN_TREE@[138; 154)
-      L_PAREN@[138; 139) "("
-      IDENT@[139; 146) "enabled"
-      WHITESPACE@[146; 147) " "
-      EQ@[147; 148) "="
-      WHITESPACE@[148; 149) " "
-      TRUE_KW@[149; 153) "true"
-      R_PAREN@[153; 154) ")"
-    R_BRACK@[154; 155) "]"
-  WHITESPACE@[155; 156) "\n"
-  ATTR@[156; 173)
-    POUND@[156; 157) "#"
-    BANG@[157; 158) "!"
-    L_BRACK@[158; 159) "["
-    PATH@[159; 166)
-      PATH_SEGMENT@[159; 166)
-        NAME_REF@[159; 166)
-          IDENT@[159; 166) "enabled"
-    TOKEN_TREE@[166; 172)
-      L_PAREN@[166; 167) "("
-      TRUE_KW@[167; 171) "true"
-      R_PAREN@[171; 172) ")"
-    R_BRACK@[172; 173) "]"
-  WHITESPACE@[173; 174) "\n"
-  ATTR@[174; 191)
-    POUND@[174; 175) "#"
-    BANG@[175; 176) "!"
-    L_BRACK@[176; 177) "["
-    PATH@[177; 181)
-      PATH_SEGMENT@[177; 181)
-        NAME_REF@[177; 181)
-          IDENT@[177; 181) "attr"
-    TOKEN_TREE@[181; 190)
-      L_PAREN@[181; 182) "("
-      STRING@[182; 189) "\"hello\""
-      R_PAREN@[189; 190) ")"
-    R_BRACK@[190; 191) "]"
-  WHITESPACE@[191; 192) "\n"
-  ATTR@[192; 214)
-    POUND@[192; 193) "#"
-    BANG@[193; 194) "!"
-    L_BRACK@[194; 195) "["
-    PATH@[195; 199)
-      PATH_SEGMENT@[195; 199)
-        NAME_REF@[195; 199)
-          IDENT@[195; 199) "repr"
-    TOKEN_TREE@[199; 213)
-      L_PAREN@[199; 200) "("
-      IDENT@[200; 201) "C"
-      COMMA@[201; 202) ","
-      WHITESPACE@[202; 203) " "
-      IDENT@[203; 208) "align"
-      WHITESPACE@[208; 209) " "
-      EQ@[209; 210) "="
-      WHITESPACE@[210; 211) " "
-      INT_NUMBER@[211; 212) "4"
-      R_PAREN@[212; 213) ")"
-    R_BRACK@[213; 214) "]"
-  WHITESPACE@[214; 215) "\n"
-  ATTR@[215; 236)
-    POUND@[215; 216) "#"
-    BANG@[216; 217) "!"
-    L_BRACK@[217; 218) "["
-    PATH@[218; 222)
-      PATH_SEGMENT@[218; 222)
-        NAME_REF@[218; 222)
-          IDENT@[218; 222) "repr"
-    TOKEN_TREE@[222; 235)
-      L_PAREN@[222; 223) "("
-      IDENT@[223; 224) "C"
-      COMMA@[224; 225) ","
-      WHITESPACE@[225; 226) " "
-      IDENT@[226; 231) "align"
-      TOKEN_TREE@[231; 234)
-        L_PAREN@[231; 232) "("
-        INT_NUMBER@[232; 233) "4"
-        R_PAREN@[233; 234) ")"
-      R_PAREN@[234; 235) ")"
-    R_BRACK@[235; 236) "]"
+SOURCE_FILE@0..236
+  ATTR@0..8
+    POUND@0..1 "#"
+    BANG@1..2 "!"
+    L_BRACK@2..3 "["
+    PATH@3..7
+      PATH_SEGMENT@3..7
+        NAME_REF@3..7
+          IDENT@3..7 "attr"
+    R_BRACK@7..8 "]"
+  WHITESPACE@8..9 "\n"
+  ATTR@9..23
+    POUND@9..10 "#"
+    BANG@10..11 "!"
+    L_BRACK@11..12 "["
+    PATH@12..16
+      PATH_SEGMENT@12..16
+        NAME_REF@12..16
+          IDENT@12..16 "attr"
+    TOKEN_TREE@16..22
+      L_PAREN@16..17 "("
+      TRUE_KW@17..21 "true"
+      R_PAREN@21..22 ")"
+    R_BRACK@22..23 "]"
+  WHITESPACE@23..24 "\n"
+  ATTR@24..39
+    POUND@24..25 "#"
+    BANG@25..26 "!"
+    L_BRACK@26..27 "["
+    PATH@27..31
+      PATH_SEGMENT@27..31
+        NAME_REF@27..31
+          IDENT@27..31 "attr"
+    TOKEN_TREE@31..38
+      L_PAREN@31..32 "("
+      IDENT@32..37 "ident"
+      R_PAREN@37..38 ")"
+    R_BRACK@38..39 "]"
+  WHITESPACE@39..40 "\n"
+  ATTR@40..116
+    POUND@40..41 "#"
+    BANG@41..42 "!"
+    L_BRACK@42..43 "["
+    PATH@43..47
+      PATH_SEGMENT@43..47
+        NAME_REF@43..47
+          IDENT@43..47 "attr"
+    TOKEN_TREE@47..115
+      L_PAREN@47..48 "("
+      IDENT@48..53 "ident"
+      COMMA@53..54 ","
+      WHITESPACE@54..55 " "
+      INT_NUMBER@55..58 "100"
+      COMMA@58..59 ","
+      WHITESPACE@59..60 " "
+      TRUE_KW@60..64 "true"
+      COMMA@64..65 ","
+      WHITESPACE@65..66 " "
+      STRING@66..72 "\"true\""
+      COMMA@72..73 ","
+      WHITESPACE@73..74 " "
+      IDENT@74..79 "ident"
+      WHITESPACE@79..80 " "
+      EQ@80..81 "="
+      WHITESPACE@81..82 " "
+      INT_NUMBER@82..85 "100"
+      COMMA@85..86 ","
+      WHITESPACE@86..87 " "
+      IDENT@87..92 "ident"
+      WHITESPACE@92..93 " "
+      EQ@93..94 "="
+      WHITESPACE@94..95 " "
+      STRING@95..102 "\"hello\""
+      COMMA@102..103 ","
+      WHITESPACE@103..104 " "
+      IDENT@104..109 "ident"
+      TOKEN_TREE@109..114
+        L_PAREN@109..110 "("
+        INT_NUMBER@110..113 "100"
+        R_PAREN@113..114 ")"
+      R_PAREN@114..115 ")"
+    R_BRACK@115..116 "]"
+  WHITESPACE@116..117 "\n"
+  ATTR@117..130
+    POUND@117..118 "#"
+    BANG@118..119 "!"
+    L_BRACK@119..120 "["
+    PATH@120..124
+      PATH_SEGMENT@120..124
+        NAME_REF@120..124
+          IDENT@120..124 "attr"
+    TOKEN_TREE@124..129
+      L_PAREN@124..125 "("
+      INT_NUMBER@125..128 "100"
+      R_PAREN@128..129 ")"
+    R_BRACK@129..130 "]"
+  WHITESPACE@130..131 "\n"
+  ATTR@131..155
+    POUND@131..132 "#"
+    BANG@132..133 "!"
+    L_BRACK@133..134 "["
+    PATH@134..138
+      PATH_SEGMENT@134..138
+        NAME_REF@134..138
+          IDENT@134..138 "attr"
+    TOKEN_TREE@138..154
+      L_PAREN@138..139 "("
+      IDENT@139..146 "enabled"
+      WHITESPACE@146..147 " "
+      EQ@147..148 "="
+      WHITESPACE@148..149 " "
+      TRUE_KW@149..153 "true"
+      R_PAREN@153..154 ")"
+    R_BRACK@154..155 "]"
+  WHITESPACE@155..156 "\n"
+  ATTR@156..173
+    POUND@156..157 "#"
+    BANG@157..158 "!"
+    L_BRACK@158..159 "["
+    PATH@159..166
+      PATH_SEGMENT@159..166
+        NAME_REF@159..166
+          IDENT@159..166 "enabled"
+    TOKEN_TREE@166..172
+      L_PAREN@166..167 "("
+      TRUE_KW@167..171 "true"
+      R_PAREN@171..172 ")"
+    R_BRACK@172..173 "]"
+  WHITESPACE@173..174 "\n"
+  ATTR@174..191
+    POUND@174..175 "#"
+    BANG@175..176 "!"
+    L_BRACK@176..177 "["
+    PATH@177..181
+      PATH_SEGMENT@177..181
+        NAME_REF@177..181
+          IDENT@177..181 "attr"
+    TOKEN_TREE@181..190
+      L_PAREN@181..182 "("
+      STRING@182..189 "\"hello\""
+      R_PAREN@189..190 ")"
+    R_BRACK@190..191 "]"
+  WHITESPACE@191..192 "\n"
+  ATTR@192..214
+    POUND@192..193 "#"
+    BANG@193..194 "!"
+    L_BRACK@194..195 "["
+    PATH@195..199
+      PATH_SEGMENT@195..199
+        NAME_REF@195..199
+          IDENT@195..199 "repr"
+    TOKEN_TREE@199..213
+      L_PAREN@199..200 "("
+      IDENT@200..201 "C"
+      COMMA@201..202 ","
+      WHITESPACE@202..203 " "
+      IDENT@203..208 "align"
+      WHITESPACE@208..209 " "
+      EQ@209..210 "="
+      WHITESPACE@210..211 " "
+      INT_NUMBER@211..212 "4"
+      R_PAREN@212..213 ")"
+    R_BRACK@213..214 "]"
+  WHITESPACE@214..215 "\n"
+  ATTR@215..236
+    POUND@215..216 "#"
+    BANG@216..217 "!"
+    L_BRACK@217..218 "["
+    PATH@218..222
+      PATH_SEGMENT@218..222
+        NAME_REF@218..222
+          IDENT@218..222 "repr"
+    TOKEN_TREE@222..235
+      L_PAREN@222..223 "("
+      IDENT@223..224 "C"
+      COMMA@224..225 ","
+      WHITESPACE@225..226 " "
+      IDENT@226..231 "align"
+      TOKEN_TREE@231..234
+        L_PAREN@231..232 "("
+        INT_NUMBER@232..233 "4"
+        R_PAREN@233..234 ")"
+      R_PAREN@234..235 ")"
+    R_BRACK@235..236 "]"
diff --git a/crates/ra_syntax/test_data/parser/ok/0007_extern_crate.rast b/crates/ra_syntax/test_data/parser/ok/0007_extern_crate.rast
index 4856b4f81..b5bdf0aa9 100644
--- a/crates/ra_syntax/test_data/parser/ok/0007_extern_crate.rast
+++ b/crates/ra_syntax/test_data/parser/ok/0007_extern_crate.rast
@@ -1,40 +1,40 @@
-SOURCE_FILE@[0; 69)
-  EXTERN_CRATE_ITEM@[0; 17)
-    EXTERN_KW@[0; 6) "extern"
-    WHITESPACE@[6; 7) " "
-    CRATE_KW@[7; 12) "crate"
-    WHITESPACE@[12; 13) " "
-    NAME_REF@[13; 16)
-      IDENT@[13; 16) "foo"
-    SEMICOLON@[16; 17) ";"
-  WHITESPACE@[17; 18) "\n"
-  EXTERN_CRATE_ITEM@[18; 42)
-    EXTERN_KW@[18; 24) "extern"
-    WHITESPACE@[24; 25) " "
-    CRATE_KW@[25; 30) "crate"
-    WHITESPACE@[30; 31) " "
-    NAME_REF@[31; 34)
-      IDENT@[31; 34) "foo"
-    WHITESPACE@[34; 35) " "
-    ALIAS@[35; 41)
-      AS_KW@[35; 37) "as"
-      WHITESPACE@[37; 38) " "
-      NAME@[38; 41)
-        IDENT@[38; 41) "bar"
-    SEMICOLON@[41; 42) ";"
-  WHITESPACE@[42; 43) "\n"
-  EXTERN_CRATE_ITEM@[43; 68)
-    EXTERN_KW@[43; 49) "extern"
-    WHITESPACE@[49; 50) " "
-    CRATE_KW@[50; 55) "crate"
-    WHITESPACE@[55; 56) " "
-    SELF_KW@[56; 60)
-      SELF_KW@[56; 60) "self"
-    WHITESPACE@[60; 61) " "
-    ALIAS@[61; 67)
-      AS_KW@[61; 63) "as"
-      WHITESPACE@[63; 64) " "
-      NAME@[64; 67)
-        IDENT@[64; 67) "baz"
-    SEMICOLON@[67; 68) ";"
-  WHITESPACE@[68; 69) "\n"
+SOURCE_FILE@0..69
+  EXTERN_CRATE_ITEM@0..17
+    EXTERN_KW@0..6 "extern"
+    WHITESPACE@6..7 " "
+    CRATE_KW@7..12 "crate"
+    WHITESPACE@12..13 " "
+    NAME_REF@13..16
+      IDENT@13..16 "foo"
+    SEMICOLON@16..17 ";"
+  WHITESPACE@17..18 "\n"
+  EXTERN_CRATE_ITEM@18..42
+    EXTERN_KW@18..24 "extern"
+    WHITESPACE@24..25 " "
+    CRATE_KW@25..30 "crate"
+    WHITESPACE@30..31 " "
+    NAME_REF@31..34
+      IDENT@31..34 "foo"
+    WHITESPACE@34..35 " "
+    ALIAS@35..41
+      AS_KW@35..37 "as"
+      WHITESPACE@37..38 " "
+      NAME@38..41
+        IDENT@38..41 "bar"
+    SEMICOLON@41..42 ";"
+  WHITESPACE@42..43 "\n"
+  EXTERN_CRATE_ITEM@43..68
+    EXTERN_KW@43..49 "extern"
+    WHITESPACE@49..50 " "
+    CRATE_KW@50..55 "crate"
+    WHITESPACE@55..56 " "
+    SELF_KW@56..60
+      SELF_KW@56..60 "self"
+    WHITESPACE@60..61 " "
+    ALIAS@61..67
+      AS_KW@61..63 "as"
+      WHITESPACE@63..64 " "
+      NAME@64..67
+        IDENT@64..67 "baz"
+    SEMICOLON@67..68 ";"
+  WHITESPACE@68..69 "\n"
diff --git a/crates/ra_syntax/test_data/parser/ok/0008_mod_item.rast b/crates/ra_syntax/test_data/parser/ok/0008_mod_item.rast
index 1c18edd4e..353bf2d2e 100644
--- a/crates/ra_syntax/test_data/parser/ok/0008_mod_item.rast
+++ b/crates/ra_syntax/test_data/parser/ok/0008_mod_item.rast
@@ -1,93 +1,93 @@
-SOURCE_FILE@[0; 118)
-  MODULE@[0; 6)
-    MOD_KW@[0; 3) "mod"
-    WHITESPACE@[3; 4) " "
-    NAME@[4; 5)
-      IDENT@[4; 5) "a"
-    SEMICOLON@[5; 6) ";"
-  WHITESPACE@[6; 8) "\n\n"
-  MODULE@[8; 17)
-    MOD_KW@[8; 11) "mod"
-    WHITESPACE@[11; 12) " "
-    NAME@[12; 13)
-      IDENT@[12; 13) "b"
-    WHITESPACE@[13; 14) " "
-    ITEM_LIST@[14; 17)
-      L_CURLY@[14; 15) "{"
-      WHITESPACE@[15; 16) "\n"
-      R_CURLY@[16; 17) "}"
-  WHITESPACE@[17; 19) "\n\n"
-  MODULE@[19; 65)
-    MOD_KW@[19; 22) "mod"
-    WHITESPACE@[22; 23) " "
-    NAME@[23; 24)
-      IDENT@[23; 24) "c"
-    WHITESPACE@[24; 25) " "
-    ITEM_LIST@[25; 65)
-      L_CURLY@[25; 26) "{"
-      WHITESPACE@[26; 31) "\n    "
-      FN_DEF@[31; 47)
-        FN_KW@[31; 33) "fn"
-        WHITESPACE@[33; 34) " "
-        NAME@[34; 37)
-          IDENT@[34; 37) "foo"
-        PARAM_LIST@[37; 39)
-          L_PAREN@[37; 38) "("
-          R_PAREN@[38; 39) ")"
-        WHITESPACE@[39; 40) " "
-        BLOCK_EXPR@[40; 47)
-          BLOCK@[40; 47)
-            L_CURLY@[40; 41) "{"
-            WHITESPACE@[41; 46) "\n    "
-            R_CURLY@[46; 47) "}"
-      WHITESPACE@[47; 52) "\n    "
-      STRUCT_DEF@[52; 63)
-        STRUCT_KW@[52; 58) "struct"
-        WHITESPACE@[58; 59) " "
-        NAME@[59; 60)
-          IDENT@[59; 60) "S"
-        WHITESPACE@[60; 61) " "
-        RECORD_FIELD_DEF_LIST@[61; 63)
-          L_CURLY@[61; 62) "{"
-          R_CURLY@[62; 63) "}"
-      WHITESPACE@[63; 64) "\n"
-      R_CURLY@[64; 65) "}"
-  WHITESPACE@[65; 67) "\n\n"
-  MODULE@[67; 118)
-    MOD_KW@[67; 70) "mod"
-    WHITESPACE@[70; 71) " "
-    NAME@[71; 72)
-      IDENT@[71; 72) "d"
-    WHITESPACE@[72; 73) " "
-    ITEM_LIST@[73; 118)
-      L_CURLY@[73; 74) "{"
-      WHITESPACE@[74; 79) "\n    "
-      ATTR@[79; 87)
-        POUND@[79; 80) "#"
-        BANG@[80; 81) "!"
-        L_BRACK@[81; 82) "["
-        PATH@[82; 86)
-          PATH_SEGMENT@[82; 86)
-            NAME_REF@[82; 86)
-              IDENT@[82; 86) "attr"
-        R_BRACK@[86; 87) "]"
-      WHITESPACE@[87; 92) "\n    "
-      MODULE@[92; 98)
-        MOD_KW@[92; 95) "mod"
-        WHITESPACE@[95; 96) " "
-        NAME@[96; 97)
-          IDENT@[96; 97) "e"
-        SEMICOLON@[97; 98) ";"
-      WHITESPACE@[98; 103) "\n    "
-      MODULE@[103; 116)
-        MOD_KW@[103; 106) "mod"
-        WHITESPACE@[106; 107) " "
-        NAME@[107; 108)
-          IDENT@[107; 108) "f"
-        WHITESPACE@[108; 109) " "
-        ITEM_LIST@[109; 116)
-          L_CURLY@[109; 110) "{"
-          WHITESPACE@[110; 115) "\n    "
-          R_CURLY@[115; 116) "}"
-      WHITESPACE@[116; 117) "\n"
-      R_CURLY@[117; 118) "}"
+SOURCE_FILE@0..118
+  MODULE@0..6
+    MOD_KW@0..3 "mod"
+    WHITESPACE@3..4 " "
+    NAME@4..5
+      IDENT@4..5 "a"
+    SEMICOLON@5..6 ";"
+  WHITESPACE@6..8 "\n\n"
+  MODULE@8..17
+    MOD_KW@8..11 "mod"
+    WHITESPACE@11..12 " "
+    NAME@12..13
+      IDENT@12..13 "b"
+    WHITESPACE@13..14 " "
+    ITEM_LIST@14..17
+      L_CURLY@14..15 "{"
+      WHITESPACE@15..16 "\n"
+      R_CURLY@16..17 "}"
+  WHITESPACE@17..19 "\n\n"
+  MODULE@19..65
+    MOD_KW@19..22 "mod"
+    WHITESPACE@22..23 " "
+    NAME@23..24
+      IDENT@23..24 "c"
+    WHITESPACE@24..25 " "
+    ITEM_LIST@25..65
+      L_CURLY@25..26 "{"
+      WHITESPACE@26..31 "\n    "
+      FN_DEF@31..47
+        FN_KW@31..33 "fn"
+        WHITESPACE@33..34 " "
+        NAME@34..37
+          IDENT@34..37 "foo"
+        PARAM_LIST@37..39
+          L_PAREN@37..38 "("
+          R_PAREN@38..39 ")"
+        WHITESPACE@39..40 " "
+        BLOCK_EXPR@40..47
+          BLOCK@40..47
+            L_CURLY@40..41 "{"
+            WHITESPACE@41..46 "\n    "
+            R_CURLY@46..47 "}"
+      WHITESPACE@47..52 "\n    "
+      STRUCT_DEF@52..63
+        STRUCT_KW@52..58 "struct"
+        WHITESPACE@58..59 " "
+        NAME@59..60
+          IDENT@59..60 "S"
+        WHITESPACE@60..61 " "
+        RECORD_FIELD_DEF_LIST@61..63
+          L_CURLY@61..62 "{"
+          R_CURLY@62..63 "}"
+      WHITESPACE@63..64 "\n"
+      R_CURLY@64..65 "}"
+  WHITESPACE@65..67 "\n\n"
+  MODULE@67..118
+    MOD_KW@67..70 "mod"
+    WHITESPACE@70..71 " "
+    NAME@71..72
+      IDENT@71..72 "d"
+    WHITESPACE@72..73 " "
+    ITEM_LIST@73..118
+      L_CURLY@73..74 "{"
+      WHITESPACE@74..79 "\n    "
+      ATTR@79..87
+        POUND@79..80 "#"
+        BANG@80..81 "!"
+        L_BRACK@81..82 "["
+        PATH@82..86
+          PATH_SEGMENT@82..86
+            NAME_REF@82..86
+              IDENT@82..86 "attr"
+        R_BRACK@86..87 "]"
+      WHITESPACE@87..92 "\n    "
+      MODULE@92..98
+        MOD_KW@92..95 "mod"
+        WHITESPACE@95..96 " "
+        NAME@96..97
+          IDENT@96..97 "e"
+        SEMICOLON@97..98 ";"
+      WHITESPACE@98..103 "\n    "
+      MODULE@103..116
+        MOD_KW@103..106 "mod"
+        WHITESPACE@106..107 " "
+        NAME@107..108
+          IDENT@107..108 "f"
+        WHITESPACE@108..109 " "
+        ITEM_LIST@109..116
+          L_CURLY@109..110 "{"
+          WHITESPACE@110..115 "\n    "
+          R_CURLY@115..116 "}"
+      WHITESPACE@116..117 "\n"
+      R_CURLY@117..118 "}"
diff --git a/crates/ra_syntax/test_data/parser/ok/0009_use_item.rast b/crates/ra_syntax/test_data/parser/ok/0009_use_item.rast
index 62a8ae433..96b8a94fc 100644
--- a/crates/ra_syntax/test_data/parser/ok/0009_use_item.rast
+++ b/crates/ra_syntax/test_data/parser/ok/0009_use_item.rast
@@ -1,21 +1,21 @@
-SOURCE_FILE@[0; 19)
-  USE_ITEM@[0; 8)
-    USE_KW@[0; 3) "use"
-    WHITESPACE@[3; 4) " "
-    USE_TREE@[4; 7)
-      PATH@[4; 7)
-        PATH_SEGMENT@[4; 7)
-          NAME_REF@[4; 7)
-            IDENT@[4; 7) "foo"
-    SEMICOLON@[7; 8) ";"
-  WHITESPACE@[8; 9) "\n"
-  USE_ITEM@[9; 19)
-    USE_KW@[9; 12) "use"
-    WHITESPACE@[12; 13) " "
-    USE_TREE@[13; 18)
-      PATH@[13; 18)
-        PATH_SEGMENT@[13; 18)
-          COLON2@[13; 15) "::"
-          NAME_REF@[15; 18)
-            IDENT@[15; 18) "bar"
-    SEMICOLON@[18; 19) ";"
+SOURCE_FILE@0..19
+  USE_ITEM@0..8
+    USE_KW@0..3 "use"
+    WHITESPACE@3..4 " "
+    USE_TREE@4..7
+      PATH@4..7
+        PATH_SEGMENT@4..7
+          NAME_REF@4..7
+            IDENT@4..7 "foo"
+    SEMICOLON@7..8 ";"
+  WHITESPACE@8..9 "\n"
+  USE_ITEM@9..19
+    USE_KW@9..12 "use"
+    WHITESPACE@12..13 " "
+    USE_TREE@13..18
+      PATH@13..18
+        PATH_SEGMENT@13..18
+          COLON2@13..15 "::"
+          NAME_REF@15..18
+            IDENT@15..18 "bar"
+    SEMICOLON@18..19 ";"
diff --git a/crates/ra_syntax/test_data/parser/ok/0010_use_path_segments.rast b/crates/ra_syntax/test_data/parser/ok/0010_use_path_segments.rast
index f2689e1ed..07272dc3c 100644
--- a/crates/ra_syntax/test_data/parser/ok/0010_use_path_segments.rast
+++ b/crates/ra_syntax/test_data/parser/ok/0010_use_path_segments.rast
@@ -1,42 +1,42 @@
-SOURCE_FILE@[0; 40)
-  USE_ITEM@[0; 20)
-    USE_KW@[0; 3) "use"
-    WHITESPACE@[3; 4) " "
-    USE_TREE@[4; 19)
-      PATH@[4; 19)
-        PATH@[4; 14)
-          PATH@[4; 9)
-            PATH_SEGMENT@[4; 9)
-              COLON2@[4; 6) "::"
-              NAME_REF@[6; 9)
-                IDENT@[6; 9) "foo"
-          COLON2@[9; 11) "::"
-          PATH_SEGMENT@[11; 14)
-            NAME_REF@[11; 14)
-              IDENT@[11; 14) "bar"
-        COLON2@[14; 16) "::"
-        PATH_SEGMENT@[16; 19)
-          NAME_REF@[16; 19)
-            IDENT@[16; 19) "baz"
-    SEMICOLON@[19; 20) ";"
-  WHITESPACE@[20; 21) "\n"
-  USE_ITEM@[21; 39)
-    USE_KW@[21; 24) "use"
-    WHITESPACE@[24; 25) " "
-    USE_TREE@[25; 38)
-      PATH@[25; 38)
-        PATH@[25; 33)
-          PATH@[25; 28)
-            PATH_SEGMENT@[25; 28)
-              NAME_REF@[25; 28)
-                IDENT@[25; 28) "foo"
-          COLON2@[28; 30) "::"
-          PATH_SEGMENT@[30; 33)
-            NAME_REF@[30; 33)
-              IDENT@[30; 33) "bar"
-        COLON2@[33; 35) "::"
-        PATH_SEGMENT@[35; 38)
-          NAME_REF@[35; 38)
-            IDENT@[35; 38) "baz"
-    SEMICOLON@[38; 39) ";"
-  WHITESPACE@[39; 40) "\n"
+SOURCE_FILE@0..40
+  USE_ITEM@0..20
+    USE_KW@0..3 "use"
+    WHITESPACE@3..4 " "
+    USE_TREE@4..19
+      PATH@4..19
+        PATH@4..14
+          PATH@4..9
+            PATH_SEGMENT@4..9
+              COLON2@4..6 "::"
+              NAME_REF@6..9
+                IDENT@6..9 "foo"
+          COLON2@9..11 "::"
+          PATH_SEGMENT@11..14
+            NAME_REF@11..14
+              IDENT@11..14 "bar"
+        COLON2@14..16 "::"
+        PATH_SEGMENT@16..19
+          NAME_REF@16..19
+            IDENT@16..19 "baz"
+    SEMICOLON@19..20 ";"
+  WHITESPACE@20..21 "\n"
+  USE_ITEM@21..39
+    USE_KW@21..24 "use"
+    WHITESPACE@24..25 " "
+    USE_TREE@25..38
+      PATH@25..38
+        PATH@25..33
+          PATH@25..28
+            PATH_SEGMENT@25..28
+              NAME_REF@25..28
+                IDENT@25..28 "foo"
+          COLON2@28..30 "::"
+          PATH_SEGMENT@30..33
+            NAME_REF@30..33
+              IDENT@30..33 "bar"
+        COLON2@33..35 "::"
+        PATH_SEGMENT@35..38
+          NAME_REF@35..38
+            IDENT@35..38 "baz"
+    SEMICOLON@38..39 ";"
+  WHITESPACE@39..40 "\n"
diff --git a/crates/ra_syntax/test_data/parser/ok/0011_outer_attribute.rast b/crates/ra_syntax/test_data/parser/ok/0011_outer_attribute.rast
index 4426d586a..3919cc78b 100644
--- a/crates/ra_syntax/test_data/parser/ok/0011_outer_attribute.rast
+++ b/crates/ra_syntax/test_data/parser/ok/0011_outer_attribute.rast
@@ -1,58 +1,58 @@
-SOURCE_FILE@[0; 60)
-  FN_DEF@[0; 34)
-    ATTR@[0; 12)
-      POUND@[0; 1) "#"
-      L_BRACK@[1; 2) "["
-      PATH@[2; 5)
-        PATH_SEGMENT@[2; 5)
-          NAME_REF@[2; 5)
-            IDENT@[2; 5) "cfg"
-      TOKEN_TREE@[5; 11)
-        L_PAREN@[5; 6) "("
-        IDENT@[6; 10) "test"
-        R_PAREN@[10; 11) ")"
-      R_BRACK@[11; 12) "]"
-    WHITESPACE@[12; 13) "\n"
-    ATTR@[13; 22)
-      POUND@[13; 14) "#"
-      L_BRACK@[14; 15) "["
-      PATH@[15; 21)
-        PATH_SEGMENT@[15; 21)
-          NAME_REF@[15; 21)
-            IDENT@[15; 21) "ignore"
-      R_BRACK@[21; 22) "]"
-    WHITESPACE@[22; 23) "\n"
-    FN_KW@[23; 25) "fn"
-    WHITESPACE@[25; 26) " "
-    NAME@[26; 29)
-      IDENT@[26; 29) "foo"
-    PARAM_LIST@[29; 31)
-      L_PAREN@[29; 30) "("
-      R_PAREN@[30; 31) ")"
-    WHITESPACE@[31; 32) " "
-    BLOCK_EXPR@[32; 34)
-      BLOCK@[32; 34)
-        L_CURLY@[32; 33) "{"
-        R_CURLY@[33; 34) "}"
-  WHITESPACE@[34; 36) "\n\n"
-  MODULE@[36; 59)
-    ATTR@[36; 52)
-      POUND@[36; 37) "#"
-      L_BRACK@[37; 38) "["
-      PATH@[38; 42)
-        PATH_SEGMENT@[38; 42)
-          NAME_REF@[38; 42)
-            IDENT@[38; 42) "path"
-      WHITESPACE@[42; 43) " "
-      EQ@[43; 44) "="
-      WHITESPACE@[44; 45) " "
-      LITERAL@[45; 51)
-        STRING@[45; 51) "\"a.rs\""
-      R_BRACK@[51; 52) "]"
-    WHITESPACE@[52; 53) "\n"
-    MOD_KW@[53; 56) "mod"
-    WHITESPACE@[56; 57) " "
-    NAME@[57; 58)
-      IDENT@[57; 58) "b"
-    SEMICOLON@[58; 59) ";"
-  WHITESPACE@[59; 60) "\n"
+SOURCE_FILE@0..60
+  FN_DEF@0..34
+    ATTR@0..12
+      POUND@0..1 "#"
+      L_BRACK@1..2 "["
+      PATH@2..5
+        PATH_SEGMENT@2..5
+          NAME_REF@2..5
+            IDENT@2..5 "cfg"
+      TOKEN_TREE@5..11
+        L_PAREN@5..6 "("
+        IDENT@6..10 "test"
+        R_PAREN@10..11 ")"
+      R_BRACK@11..12 "]"
+    WHITESPACE@12..13 "\n"
+    ATTR@13..22
+      POUND@13..14 "#"
+      L_BRACK@14..15 "["
+      PATH@15..21
+        PATH_SEGMENT@15..21
+          NAME_REF@15..21
+            IDENT@15..21 "ignore"
+      R_BRACK@21..22 "]"
+    WHITESPACE@22..23 "\n"
+    FN_KW@23..25 "fn"
+    WHITESPACE@25..26 " "
+    NAME@26..29
+      IDENT@26..29 "foo"
+    PARAM_LIST@29..31
+      L_PAREN@29..30 "("
+      R_PAREN@30..31 ")"
+    WHITESPACE@31..32 " "
+    BLOCK_EXPR@32..34
+      BLOCK@32..34
+        L_CURLY@32..33 "{"
+        R_CURLY@33..34 "}"
+  WHITESPACE@34..36 "\n\n"
+  MODULE@36..59
+    ATTR@36..52
+      POUND@36..37 "#"
+      L_BRACK@37..38 "["
+      PATH@38..42
+        PATH_SEGMENT@38..42
+          NAME_REF@38..42
+            IDENT@38..42 "path"
+      WHITESPACE@42..43 " "
+      EQ@43..44 "="
+      WHITESPACE@44..45 " "
+      LITERAL@45..51
+        STRING@45..51 "\"a.rs\""
+      R_BRACK@51..52 "]"
+    WHITESPACE@52..53 "\n"
+    MOD_KW@53..56 "mod"
+    WHITESPACE@56..57 " "
+    NAME@57..58
+      IDENT@57..58 "b"
+    SEMICOLON@58..59 ";"
+  WHITESPACE@59..60 "\n"
diff --git a/crates/ra_syntax/test_data/parser/ok/0012_visibility.rast b/crates/ra_syntax/test_data/parser/ok/0012_visibility.rast
index c76cf9fe9..750a045ef 100644
--- a/crates/ra_syntax/test_data/parser/ok/0012_visibility.rast
+++ b/crates/ra_syntax/test_data/parser/ok/0012_visibility.rast
@@ -1,107 +1,107 @@
-SOURCE_FILE@[0; 98)
-  FN_DEF@[0; 9)
-    FN_KW@[0; 2) "fn"
-    WHITESPACE@[2; 3) " "
-    NAME@[3; 4)
-      IDENT@[3; 4) "a"
-    PARAM_LIST@[4; 6)
-      L_PAREN@[4; 5) "("
-      R_PAREN@[5; 6) ")"
-    WHITESPACE@[6; 7) " "
-    BLOCK_EXPR@[7; 9)
-      BLOCK@[7; 9)
-        L_CURLY@[7; 8) "{"
-        R_CURLY@[8; 9) "}"
-  WHITESPACE@[9; 10) "\n"
-  FN_DEF@[10; 23)
-    VISIBILITY@[10; 13)
-      PUB_KW@[10; 13) "pub"
-    WHITESPACE@[13; 14) " "
-    FN_KW@[14; 16) "fn"
-    WHITESPACE@[16; 17) " "
-    NAME@[17; 18)
-      IDENT@[17; 18) "b"
-    PARAM_LIST@[18; 20)
-      L_PAREN@[18; 19) "("
-      R_PAREN@[19; 20) ")"
-    WHITESPACE@[20; 21) " "
-    BLOCK_EXPR@[21; 23)
-      BLOCK@[21; 23)
-        L_CURLY@[21; 22) "{"
-        R_CURLY@[22; 23) "}"
-  WHITESPACE@[23; 24) "\n"
-  FN_DEF@[24; 44)
-    VISIBILITY@[24; 34)
-      PUB_KW@[24; 27) "pub"
-      L_PAREN@[27; 28) "("
-      CRATE_KW@[28; 33) "crate"
-      R_PAREN@[33; 34) ")"
-    WHITESPACE@[34; 35) " "
-    FN_KW@[35; 37) "fn"
-    WHITESPACE@[37; 38) " "
-    NAME@[38; 39)
-      IDENT@[38; 39) "c"
-    PARAM_LIST@[39; 41)
-      L_PAREN@[39; 40) "("
-      R_PAREN@[40; 41) ")"
-    WHITESPACE@[41; 42) " "
-    BLOCK_EXPR@[42; 44)
-      BLOCK@[42; 44)
-        L_CURLY@[42; 43) "{"
-        R_CURLY@[43; 44) "}"
-  WHITESPACE@[44; 45) "\n"
-  FN_DEF@[45; 65)
-    VISIBILITY@[45; 55)
-      PUB_KW@[45; 48) "pub"
-      L_PAREN@[48; 49) "("
-      SUPER_KW@[49; 54) "super"
-      R_PAREN@[54; 55) ")"
-    WHITESPACE@[55; 56) " "
-    FN_KW@[56; 58) "fn"
-    WHITESPACE@[58; 59) " "
-    NAME@[59; 60)
-      IDENT@[59; 60) "d"
-    PARAM_LIST@[60; 62)
-      L_PAREN@[60; 61) "("
-      R_PAREN@[61; 62) ")"
-    WHITESPACE@[62; 63) " "
-    BLOCK_EXPR@[63; 65)
-      BLOCK@[63; 65)
-        L_CURLY@[63; 64) "{"
-        R_CURLY@[64; 65) "}"
-  WHITESPACE@[65; 66) "\n"
-  FN_DEF@[66; 97)
-    VISIBILITY@[66; 87)
-      PUB_KW@[66; 69) "pub"
-      L_PAREN@[69; 70) "("
-      IN_KW@[70; 72) "in"
-      WHITESPACE@[72; 73) " "
-      PATH@[73; 86)
-        PATH@[73; 81)
-          PATH@[73; 76)
-            PATH_SEGMENT@[73; 76)
-              NAME_REF@[73; 76)
-                IDENT@[73; 76) "foo"
-          COLON2@[76; 78) "::"
-          PATH_SEGMENT@[78; 81)
-            NAME_REF@[78; 81)
-              IDENT@[78; 81) "bar"
-        COLON2@[81; 83) "::"
-        PATH_SEGMENT@[83; 86)
-          NAME_REF@[83; 86)
-            IDENT@[83; 86) "baz"
-      R_PAREN@[86; 87) ")"
-    WHITESPACE@[87; 88) " "
-    FN_KW@[88; 90) "fn"
-    WHITESPACE@[90; 91) " "
-    NAME@[91; 92)
-      IDENT@[91; 92) "e"
-    PARAM_LIST@[92; 94)
-      L_PAREN@[92; 93) "("
-      R_PAREN@[93; 94) ")"
-    WHITESPACE@[94; 95) " "
-    BLOCK_EXPR@[95; 97)
-      BLOCK@[95; 97)
-        L_CURLY@[95; 96) "{"
-        R_CURLY@[96; 97) "}"
-  WHITESPACE@[97; 98) "\n"
+SOURCE_FILE@0..98
+  FN_DEF@0..9
+    FN_KW@0..2 "fn"
+    WHITESPACE@2..3 " "
+    NAME@3..4
+      IDENT@3..4 "a"
+    PARAM_LIST@4..6
+      L_PAREN@4..5 "("
+      R_PAREN@5..6 ")"
+    WHITESPACE@6..7 " "
+    BLOCK_EXPR@7..9
+      BLOCK@7..9
+        L_CURLY@7..8 "{"
+        R_CURLY@8..9 "}"
+  WHITESPACE@9..10 "\n"
+  FN_DEF@10..23
+    VISIBILITY@10..13
+      PUB_KW@10..13 "pub"
+    WHITESPACE@13..14 " "
+    FN_KW@14..16 "fn"
+    WHITESPACE@16..17 " "
+    NAME@17..18
+      IDENT@17..18 "b"
+    PARAM_LIST@18..20
+      L_PAREN@18..19 "("
+      R_PAREN@19..20 ")"
+    WHITESPACE@20..21 " "
+    BLOCK_EXPR@21..23
+      BLOCK@21..23
+        L_CURLY@21..22 "{"
+        R_CURLY@22..23 "}"
+  WHITESPACE@23..24 "\n"
+  FN_DEF@24..44
+    VISIBILITY@24..34
+      PUB_KW@24..27 "pub"
+      L_PAREN@27..28 "("
+      CRATE_KW@28..33 "crate"
+      R_PAREN@33..34 ")"
+    WHITESPACE@34..35 " "
+    FN_KW@35..37 "fn"
+    WHITESPACE@37..38 " "
+    NAME@38..39
+      IDENT@38..39 "c"
+    PARAM_LIST@39..41
+      L_PAREN@39..40 "("
+      R_PAREN@40..41 ")"
+    WHITESPACE@41..42 " "
+    BLOCK_EXPR@42..44
+      BLOCK@42..44
+        L_CURLY@42..43 "{"
+        R_CURLY@43..44 "}"
+  WHITESPACE@44..45 "\n"
+  FN_DEF@45..65
+    VISIBILITY@45..55
+      PUB_KW@45..48 "pub"
+      L_PAREN@48..49 "("
+      SUPER_KW@49..54 "super"
+      R_PAREN@54..55 ")"
+    WHITESPACE@55..56 " "
+    FN_KW@56..58 "fn"
+    WHITESPACE@58..59 " "
+    NAME@59..60
+      IDENT@59..60 "d"
+    PARAM_LIST@60..62
+      L_PAREN@60..61 "("
+      R_PAREN@61..62 ")"
+    WHITESPACE@62..63 " "
+    BLOCK_EXPR@63..65
+      BLOCK@63..65
+        L_CURLY@63..64 "{"
+        R_CURLY@64..65 "}"
+  WHITESPACE@65..66 "\n"
+  FN_DEF@66..97
+    VISIBILITY@66..87
+      PUB_KW@66..69 "pub"
+      L_PAREN@69..70 "("
+      IN_KW@70..72 "in"
+      WHITESPACE@72..73 " "
+      PATH@73..86
+        PATH@73..81
+          PATH@73..76
+            PATH_SEGMENT@73..76
+              NAME_REF@73..76
+                IDENT@73..76 "foo"
+          COLON2@76..78 "::"
+          PATH_SEGMENT@78..81
+            NAME_REF@78..81
+              IDENT@78..81 "bar"
+        COLON2@81..83 "::"
+        PATH_SEGMENT@83..86
+          NAME_REF@83..86
+            IDENT@83..86 "baz"
+      R_PAREN@86..87 ")"
+    WHITESPACE@87..88 " "
+    FN_KW@88..90 "fn"
+    WHITESPACE@90..91 " "
+    NAME@91..92
+      IDENT@91..92 "e"
+    PARAM_LIST@92..94
+      L_PAREN@92..93 "("
+      R_PAREN@93..94 ")"
+    WHITESPACE@94..95 " "
+    BLOCK_EXPR@95..97
+      BLOCK@95..97
+        L_CURLY@95..96 "{"
+        R_CURLY@96..97 "}"
+  WHITESPACE@97..98 "\n"
diff --git a/crates/ra_syntax/test_data/parser/ok/0013_use_path_self_super.rast b/crates/ra_syntax/test_data/parser/ok/0013_use_path_self_super.rast
index 552cb3daf..a5a90df7b 100644
--- a/crates/ra_syntax/test_data/parser/ok/0013_use_path_self_super.rast
+++ b/crates/ra_syntax/test_data/parser/ok/0013_use_path_self_super.rast
@@ -1,57 +1,57 @@
-SOURCE_FILE@[0; 65)
-  USE_ITEM@[0; 14)
-    USE_KW@[0; 3) "use"
-    WHITESPACE@[3; 4) " "
-    USE_TREE@[4; 13)
-      PATH@[4; 13)
-        PATH@[4; 8)
-          PATH_SEGMENT@[4; 8)
-            SELF_KW@[4; 8) "self"
-        COLON2@[8; 10) "::"
-        PATH_SEGMENT@[10; 13)
-          NAME_REF@[10; 13)
-            IDENT@[10; 13) "foo"
-    SEMICOLON@[13; 14) ";"
-  WHITESPACE@[14; 15) "\n"
-  USE_ITEM@[15; 37)
-    USE_KW@[15; 18) "use"
-    WHITESPACE@[18; 19) " "
-    USE_TREE@[19; 36)
-      PATH@[19; 36)
-        PATH@[19; 31)
-          PATH@[19; 24)
-            PATH_SEGMENT@[19; 24)
-              SUPER_KW@[19; 24) "super"
-          COLON2@[24; 26) "::"
-          PATH_SEGMENT@[26; 31)
-            SUPER_KW@[26; 31) "super"
-        COLON2@[31; 33) "::"
-        PATH_SEGMENT@[33; 36)
-          NAME_REF@[33; 36)
-            IDENT@[33; 36) "bar"
-    SEMICOLON@[36; 37) ";"
-  WHITESPACE@[37; 38) "\n"
-  USE_ITEM@[38; 64)
-    USE_KW@[38; 41) "use"
-    WHITESPACE@[41; 42) " "
-    USE_TREE@[42; 63)
-      PATH@[42; 63)
-        PATH@[42; 58)
-          PATH@[42; 51)
-            PATH@[42; 48)
-              PATH_SEGMENT@[42; 48)
-                COLON2@[42; 44) "::"
-                SELF_KW@[44; 48) "self"
-            COLON2@[48; 50) "::"
-            PATH_SEGMENT@[50; 51)
-              NAME_REF@[50; 51)
-                IDENT@[50; 51) "a"
-          COLON2@[51; 53) "::"
-          PATH_SEGMENT@[53; 58)
-            SUPER_KW@[53; 58) "super"
-        COLON2@[58; 60) "::"
-        PATH_SEGMENT@[60; 63)
-          NAME_REF@[60; 63)
-            IDENT@[60; 63) "bar"
-    SEMICOLON@[63; 64) ";"
-  WHITESPACE@[64; 65) "\n"
+SOURCE_FILE@0..65
+  USE_ITEM@0..14
+    USE_KW@0..3 "use"
+    WHITESPACE@3..4 " "
+    USE_TREE@4..13
+      PATH@4..13
+        PATH@4..8
+          PATH_SEGMENT@4..8
+            SELF_KW@4..8 "self"
+        COLON2@8..10 "::"
+        PATH_SEGMENT@10..13
+          NAME_REF@10..13
+            IDENT@10..13 "foo"
+    SEMICOLON@13..14 ";"
+  WHITESPACE@14..15 "\n"
+  USE_ITEM@15..37
+    USE_KW@15..18 "use"
+    WHITESPACE@18..19 " "
+    USE_TREE@19..36
+      PATH@19..36
+        PATH@19..31
+          PATH@19..24
+            PATH_SEGMENT@19..24
+              SUPER_KW@19..24 "super"
+          COLON2@24..26 "::"
+          PATH_SEGMENT@26..31
+            SUPER_KW@26..31 "super"
+        COLON2@31..33 "::"
+        PATH_SEGMENT@33..36
+          NAME_REF@33..36
+            IDENT@33..36 "bar"
+    SEMICOLON@36..37 ";"
+  WHITESPACE@37..38 "\n"
+  USE_ITEM@38..64
+    USE_KW@38..41 "use"
+    WHITESPACE@41..42 " "
+    USE_TREE@42..63
+      PATH@42..63
+        PATH@42..58
+          PATH@42..51
+            PATH@42..48
+              PATH_SEGMENT@42..48
+                COLON2@42..44 "::"
+                SELF_KW@44..48 "self"
+            COLON2@48..50 "::"
+            PATH_SEGMENT@50..51
+              NAME_REF@50..51
+                IDENT@50..51 "a"
+          COLON2@51..53 "::"
+          PATH_SEGMENT@53..58
+            SUPER_KW@53..58 "super"
+        COLON2@58..60 "::"
+        PATH_SEGMENT@60..63
+          NAME_REF@60..63
+            IDENT@60..63 "bar"
+    SEMICOLON@63..64 ";"
+  WHITESPACE@64..65 "\n"
diff --git a/crates/ra_syntax/test_data/parser/ok/0014_use_tree.rast b/crates/ra_syntax/test_data/parser/ok/0014_use_tree.rast
index 49a68e881..3642c107b 100644
--- a/crates/ra_syntax/test_data/parser/ok/0014_use_tree.rast
+++ b/crates/ra_syntax/test_data/parser/ok/0014_use_tree.rast
@@ -1,95 +1,95 @@
-SOURCE_FILE@[0; 81)
-  USE_ITEM@[0; 6)
-    USE_KW@[0; 3) "use"
-    WHITESPACE@[3; 4) " "
-    USE_TREE@[4; 5)
-      STAR@[4; 5) "*"
-    SEMICOLON@[5; 6) ";"
-  WHITESPACE@[6; 7) "\n"
-  USE_ITEM@[7; 15)
-    USE_KW@[7; 10) "use"
-    WHITESPACE@[10; 11) " "
-    USE_TREE@[11; 14)
-      COLON2@[11; 13) "::"
-      STAR@[13; 14) "*"
-    SEMICOLON@[14; 15) ";"
-  WHITESPACE@[15; 16) "\n"
-  USE_ITEM@[16; 25)
-    USE_KW@[16; 19) "use"
-    WHITESPACE@[19; 20) " "
-    USE_TREE@[20; 24)
-      COLON2@[20; 22) "::"
-      USE_TREE_LIST@[22; 24)
-        L_CURLY@[22; 23) "{"
-        R_CURLY@[23; 24) "}"
-    SEMICOLON@[24; 25) ";"
-  WHITESPACE@[25; 26) "\n"
-  USE_ITEM@[26; 33)
-    USE_KW@[26; 29) "use"
-    WHITESPACE@[29; 30) " "
-    USE_TREE@[30; 32)
-      USE_TREE_LIST@[30; 32)
-        L_CURLY@[30; 31) "{"
-        R_CURLY@[31; 32) "}"
-    SEMICOLON@[32; 33) ";"
-  WHITESPACE@[33; 34) "\n"
-  USE_ITEM@[34; 45)
-    USE_KW@[34; 37) "use"
-    WHITESPACE@[37; 38) " "
-    USE_TREE@[38; 44)
-      PATH@[38; 41)
-        PATH_SEGMENT@[38; 41)
-          NAME_REF@[38; 41)
-            IDENT@[38; 41) "foo"
-      COLON2@[41; 43) "::"
-      STAR@[43; 44) "*"
-    SEMICOLON@[44; 45) ";"
-  WHITESPACE@[45; 46) "\n"
-  USE_ITEM@[46; 58)
-    USE_KW@[46; 49) "use"
-    WHITESPACE@[49; 50) " "
-    USE_TREE@[50; 57)
-      PATH@[50; 53)
-        PATH_SEGMENT@[50; 53)
-          NAME_REF@[50; 53)
-            IDENT@[50; 53) "foo"
-      COLON2@[53; 55) "::"
-      USE_TREE_LIST@[55; 57)
-        L_CURLY@[55; 56) "{"
-        R_CURLY@[56; 57) "}"
-    SEMICOLON@[57; 58) ";"
-  WHITESPACE@[58; 59) "\n"
-  USE_ITEM@[59; 80)
-    USE_KW@[59; 62) "use"
-    WHITESPACE@[62; 63) " "
-    USE_TREE@[63; 79)
-      PATH@[63; 68)
-        PATH_SEGMENT@[63; 68)
-          COLON2@[63; 65) "::"
-          NAME_REF@[65; 68)
-            IDENT@[65; 68) "foo"
-      COLON2@[68; 70) "::"
-      USE_TREE_LIST@[70; 79)
-        L_CURLY@[70; 71) "{"
-        USE_TREE@[71; 72)
-          PATH@[71; 72)
-            PATH_SEGMENT@[71; 72)
-              NAME_REF@[71; 72)
-                IDENT@[71; 72) "a"
-        COMMA@[72; 73) ","
-        WHITESPACE@[73; 74) " "
-        USE_TREE@[74; 75)
-          PATH@[74; 75)
-            PATH_SEGMENT@[74; 75)
-              NAME_REF@[74; 75)
-                IDENT@[74; 75) "b"
-        COMMA@[75; 76) ","
-        WHITESPACE@[76; 77) " "
-        USE_TREE@[77; 78)
-          PATH@[77; 78)
-            PATH_SEGMENT@[77; 78)
-              NAME_REF@[77; 78)
-                IDENT@[77; 78) "c"
-        R_CURLY@[78; 79) "}"
-    SEMICOLON@[79; 80) ";"
-  WHITESPACE@[80; 81) "\n"
+SOURCE_FILE@0..81
+  USE_ITEM@0..6
+    USE_KW@0..3 "use"
+    WHITESPACE@3..4 " "
+    USE_TREE@4..5
+      STAR@4..5 "*"
+    SEMICOLON@5..6 ";"
+  WHITESPACE@6..7 "\n"
+  USE_ITEM@7..15
+    USE_KW@7..10 "use"
+    WHITESPACE@10..11 " "
+    USE_TREE@11..14
+      COLON2@11..13 "::"
+      STAR@13..14 "*"
+    SEMICOLON@14..15 ";"
+  WHITESPACE@15..16 "\n"
+  USE_ITEM@16..25
+    USE_KW@16..19 "use"
+    WHITESPACE@19..20 " "
+    USE_TREE@20..24
+      COLON2@20..22 "::"
+      USE_TREE_LIST@22..24
+        L_CURLY@22..23 "{"
+        R_CURLY@23..24 "}"
+    SEMICOLON@24..25 ";"
+  WHITESPACE@25..26 "\n"
+  USE_ITEM@26..33
+    USE_KW@26..29 "use"
+    WHITESPACE@29..30 " "
+    USE_TREE@30..32
+      USE_TREE_LIST@30..32
+        L_CURLY@30..31 "{"
+        R_CURLY@31..32 "}"
+    SEMICOLON@32..33 ";"
+  WHITESPACE@33..34 "\n"
+  USE_ITEM@34..45
+    USE_KW@34..37 "use"
+    WHITESPACE@37..38 " "
+    USE_TREE@38..44
+      PATH@38..41
+        PATH_SEGMENT@38..41
+          NAME_REF@38..41
+            IDENT@38..41 "foo"
+      COLON2@41..43 "::"
+      STAR@43..44 "*"
+    SEMICOLON@44..45 ";"
+  WHITESPACE@45..46 "\n"
+  USE_ITEM@46..58
+    USE_KW@46..49 "use"
+    WHITESPACE@49..50 " "
+    USE_TREE@50..57
+      PATH@50..53
+        PATH_SEGMENT@50..53
+          NAME_REF@50..53
+            IDENT@50..53 "foo"
+      COLON2@53..55 "::"
+      USE_TREE_LIST@55..57
+        L_CURLY@55..56 "{"
+        R_CURLY@56..57 "}"
+    SEMICOLON@57..58 ";"
+  WHITESPACE@58..59 "\n"
+  USE_ITEM@59..80
+    USE_KW@59..62 "use"
+    WHITESPACE@62..63 " "
+    USE_TREE@63..79
+      PATH@63..68
+        PATH_SEGMENT@63..68
+          COLON2@63..65 "::"
+          NAME_REF@65..68
+            IDENT@65..68 "foo"
+      COLON2@68..70 "::"
+      USE_TREE_LIST@70..79
+        L_CURLY@70..71 "{"
+        USE_TREE@71..72
+          PATH@71..72
+            PATH_SEGMENT@71..72
+              NAME_REF@71..72
+                IDENT@71..72 "a"
+        COMMA@72..73 ","
+        WHITESPACE@73..74 " "
+        USE_TREE@74..75
+          PATH@74..75
+            PATH_SEGMENT@74..75
+              NAME_REF@74..75
+                IDENT@74..75 "b"
+        COMMA@75..76 ","
+        WHITESPACE@76..77 " "
+        USE_TREE@77..78
+          PATH@77..78
+            PATH_SEGMENT@77..78
+              NAME_REF@77..78
+                IDENT@77..78 "c"
+        R_CURLY@78..79 "}"
+    SEMICOLON@79..80 ";"
+  WHITESPACE@80..81 "\n"
diff --git a/crates/ra_syntax/test_data/parser/ok/0015_use_tree.rast b/crates/ra_syntax/test_data/parser/ok/0015_use_tree.rast
index 719ac98ef..09e0050f0 100644
--- a/crates/ra_syntax/test_data/parser/ok/0015_use_tree.rast
+++ b/crates/ra_syntax/test_data/parser/ok/0015_use_tree.rast
@@ -1,65 +1,65 @@
-SOURCE_FILE@[0; 55)
-  USE_ITEM@[0; 15)
-    USE_KW@[0; 3) "use"
-    WHITESPACE@[3; 4) " "
-    USE_TREE@[4; 14)
-      PATH@[4; 7)
-        PATH_SEGMENT@[4; 7)
-          NAME_REF@[4; 7)
-            IDENT@[4; 7) "foo"
-      WHITESPACE@[7; 8) " "
-      ALIAS@[8; 14)
-        AS_KW@[8; 10) "as"
-        WHITESPACE@[10; 11) " "
-        NAME@[11; 14)
-          IDENT@[11; 14) "bar"
-    SEMICOLON@[14; 15) ";"
-  WHITESPACE@[15; 16) "\n"
-  USE_ITEM@[16; 54)
-    USE_KW@[16; 19) "use"
-    WHITESPACE@[19; 20) " "
-    USE_TREE@[20; 53)
-      PATH@[20; 23)
-        PATH_SEGMENT@[20; 23)
-          NAME_REF@[20; 23)
-            IDENT@[20; 23) "foo"
-      COLON2@[23; 25) "::"
-      USE_TREE_LIST@[25; 53)
-        L_CURLY@[25; 26) "{"
-        USE_TREE@[26; 32)
-          PATH@[26; 27)
-            PATH_SEGMENT@[26; 27)
-              NAME_REF@[26; 27)
-                IDENT@[26; 27) "a"
-          WHITESPACE@[27; 28) " "
-          ALIAS@[28; 32)
-            AS_KW@[28; 30) "as"
-            WHITESPACE@[30; 31) " "
-            NAME@[31; 32)
-              IDENT@[31; 32) "b"
-        COMMA@[32; 33) ","
-        WHITESPACE@[33; 34) " "
-        USE_TREE@[34; 35)
-          STAR@[34; 35) "*"
-        COMMA@[35; 36) ","
-        WHITESPACE@[36; 37) " "
-        USE_TREE@[37; 40)
-          COLON2@[37; 39) "::"
-          STAR@[39; 40) "*"
-        COMMA@[40; 41) ","
-        WHITESPACE@[41; 42) " "
-        USE_TREE@[42; 52)
-          PATH@[42; 47)
-            PATH_SEGMENT@[42; 47)
-              COLON2@[42; 44) "::"
-              NAME_REF@[44; 47)
-                IDENT@[44; 47) "foo"
-          WHITESPACE@[47; 48) " "
-          ALIAS@[48; 52)
-            AS_KW@[48; 50) "as"
-            WHITESPACE@[50; 51) " "
-            NAME@[51; 52)
-              IDENT@[51; 52) "x"
-        R_CURLY@[52; 53) "}"
-    SEMICOLON@[53; 54) ";"
-  WHITESPACE@[54; 55) "\n"
+SOURCE_FILE@0..55
+  USE_ITEM@0..15
+    USE_KW@0..3 "use"
+    WHITESPACE@3..4 " "
+    USE_TREE@4..14
+      PATH@4..7
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diff --git a/crates/ra_syntax/test_data/parser/ok/0016_struct_flavors.rast b/crates/ra_syntax/test_data/parser/ok/0016_struct_flavors.rast
index f4739451e..95656d19b 100644
--- a/crates/ra_syntax/test_data/parser/ok/0016_struct_flavors.rast
+++ b/crates/ra_syntax/test_data/parser/ok/0016_struct_flavors.rast
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diff --git a/crates/ra_syntax/test_data/parser/ok/0017_attr_trailing_comma.rast b/crates/ra_syntax/test_data/parser/ok/0017_attr_trailing_comma.rast
index 1d65b0d6e..b5747aacd 100644
--- a/crates/ra_syntax/test_data/parser/ok/0017_attr_trailing_comma.rast
+++ b/crates/ra_syntax/test_data/parser/ok/0017_attr_trailing_comma.rast
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diff --git a/crates/ra_syntax/test_data/parser/ok/0018_struct_type_params.rast b/crates/ra_syntax/test_data/parser/ok/0018_struct_type_params.rast
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--- a/crates/ra_syntax/test_data/parser/ok/0018_struct_type_params.rast
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diff --git a/crates/ra_syntax/test_data/parser/ok/0019_enums.rast b/crates/ra_syntax/test_data/parser/ok/0019_enums.rast
index 9d4a47a51..f767e9e19 100644
--- a/crates/ra_syntax/test_data/parser/ok/0019_enums.rast
+++ b/crates/ra_syntax/test_data/parser/ok/0019_enums.rast
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+          IDENT@175..176 "E"
+        TUPLE_FIELD_DEF_LIST@176..178
+          L_PAREN@176..177 "("
+          R_PAREN@177..178 ")"
+      COMMA@178..179 ","
+      WHITESPACE@179..180 "\n"
+      R_CURLY@180..181 "}"
+  WHITESPACE@181..182 "\n"
diff --git a/crates/ra_syntax/test_data/parser/ok/0020_type_param_bounds.rast b/crates/ra_syntax/test_data/parser/ok/0020_type_param_bounds.rast
index edacc4bd9..4fb4baf56 100644
--- a/crates/ra_syntax/test_data/parser/ok/0020_type_param_bounds.rast
+++ b/crates/ra_syntax/test_data/parser/ok/0020_type_param_bounds.rast
@@ -1,268 +1,268 @@
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diff --git a/crates/ra_syntax/test_data/parser/ok/0021_extern_fn.rast b/crates/ra_syntax/test_data/parser/ok/0021_extern_fn.rast
index 974fb9c44..643a1d16c 100644
--- a/crates/ra_syntax/test_data/parser/ok/0021_extern_fn.rast
+++ b/crates/ra_syntax/test_data/parser/ok/0021_extern_fn.rast
@@ -1,59 +1,59 @@
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-        WHITESPACE@[17; 18) "\n"
-        R_CURLY@[18; 19) "}"
-  WHITESPACE@[19; 21) "\n\n"
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-      EXTERN_KW@[21; 27) "extern"
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-      STRING@[28; 31) "\"C\""
-    WHITESPACE@[31; 32) " "
-    FN_KW@[32; 34) "fn"
-    WHITESPACE@[34; 35) " "
-    NAME@[35; 38)
-      IDENT@[35; 38) "bar"
-    PARAM_LIST@[38; 40)
-      L_PAREN@[38; 39) "("
-      R_PAREN@[39; 40) ")"
-    WHITESPACE@[40; 41) " "
-    BLOCK_EXPR@[41; 44)
-      BLOCK@[41; 44)
-        L_CURLY@[41; 42) "{"
-        WHITESPACE@[42; 43) "\n"
-        R_CURLY@[43; 44) "}"
-  WHITESPACE@[44; 46) "\n\n"
-  FN_DEF@[46; 70)
-    ABI@[46; 57)
-      EXTERN_KW@[46; 52) "extern"
-      WHITESPACE@[52; 53) " "
-      RAW_STRING@[53; 57) "r\"D\""
-    WHITESPACE@[57; 58) " "
-    FN_KW@[58; 60) "fn"
-    WHITESPACE@[60; 61) " "
-    NAME@[61; 64)
-      IDENT@[61; 64) "baz"
-    PARAM_LIST@[64; 66)
-      L_PAREN@[64; 65) "("
-      R_PAREN@[65; 66) ")"
-    WHITESPACE@[66; 67) " "
-    BLOCK_EXPR@[67; 70)
-      BLOCK@[67; 70)
-        L_CURLY@[67; 68) "{"
-        WHITESPACE@[68; 69) "\n"
-        R_CURLY@[69; 70) "}"
-  WHITESPACE@[70; 71) "\n"
+SOURCE_FILE@0..71
+  FN_DEF@0..19
+    ABI@0..6
+      EXTERN_KW@0..6 "extern"
+    WHITESPACE@6..7 " "
+    FN_KW@7..9 "fn"
+    WHITESPACE@9..10 " "
+    NAME@10..13
+      IDENT@10..13 "foo"
+    PARAM_LIST@13..15
+      L_PAREN@13..14 "("
+      R_PAREN@14..15 ")"
+    WHITESPACE@15..16 " "
+    BLOCK_EXPR@16..19
+      BLOCK@16..19
+        L_CURLY@16..17 "{"
+        WHITESPACE@17..18 "\n"
+        R_CURLY@18..19 "}"
+  WHITESPACE@19..21 "\n\n"
+  FN_DEF@21..44
+    ABI@21..31
+      EXTERN_KW@21..27 "extern"
+      WHITESPACE@27..28 " "
+      STRING@28..31 "\"C\""
+    WHITESPACE@31..32 " "
+    FN_KW@32..34 "fn"
+    WHITESPACE@34..35 " "
+    NAME@35..38
+      IDENT@35..38 "bar"
+    PARAM_LIST@38..40
+      L_PAREN@38..39 "("
+      R_PAREN@39..40 ")"
+    WHITESPACE@40..41 " "
+    BLOCK_EXPR@41..44
+      BLOCK@41..44
+        L_CURLY@41..42 "{"
+        WHITESPACE@42..43 "\n"
+        R_CURLY@43..44 "}"
+  WHITESPACE@44..46 "\n\n"
+  FN_DEF@46..70
+    ABI@46..57
+      EXTERN_KW@46..52 "extern"
+      WHITESPACE@52..53 " "
+      RAW_STRING@53..57 "r\"D\""
+    WHITESPACE@57..58 " "
+    FN_KW@58..60 "fn"
+    WHITESPACE@60..61 " "
+    NAME@61..64
+      IDENT@61..64 "baz"
+    PARAM_LIST@64..66
+      L_PAREN@64..65 "("
+      R_PAREN@65..66 ")"
+    WHITESPACE@66..67 " "
+    BLOCK_EXPR@67..70
+      BLOCK@67..70
+        L_CURLY@67..68 "{"
+        WHITESPACE@68..69 "\n"
+        R_CURLY@69..70 "}"
+  WHITESPACE@70..71 "\n"
diff --git a/crates/ra_syntax/test_data/parser/ok/0022_empty_extern_block.rast b/crates/ra_syntax/test_data/parser/ok/0022_empty_extern_block.rast
index bbbd95fd9..26abae3b2 100644
--- a/crates/ra_syntax/test_data/parser/ok/0022_empty_extern_block.rast
+++ b/crates/ra_syntax/test_data/parser/ok/0022_empty_extern_block.rast
@@ -1,21 +1,21 @@
-SOURCE_FILE@[0; 27)
-  EXTERN_BLOCK@[0; 10)
-    ABI@[0; 6)
-      EXTERN_KW@[0; 6) "extern"
-    WHITESPACE@[6; 7) " "
-    EXTERN_ITEM_LIST@[7; 10)
-      L_CURLY@[7; 8) "{"
-      WHITESPACE@[8; 9) "\n"
-      R_CURLY@[9; 10) "}"
-  WHITESPACE@[10; 12) "\n\n"
-  EXTERN_BLOCK@[12; 26)
-    ABI@[12; 22)
-      EXTERN_KW@[12; 18) "extern"
-      WHITESPACE@[18; 19) " "
-      STRING@[19; 22) "\"C\""
-    WHITESPACE@[22; 23) " "
-    EXTERN_ITEM_LIST@[23; 26)
-      L_CURLY@[23; 24) "{"
-      WHITESPACE@[24; 25) "\n"
-      R_CURLY@[25; 26) "}"
-  WHITESPACE@[26; 27) "\n"
+SOURCE_FILE@0..27
+  EXTERN_BLOCK@0..10
+    ABI@0..6
+      EXTERN_KW@0..6 "extern"
+    WHITESPACE@6..7 " "
+    EXTERN_ITEM_LIST@7..10
+      L_CURLY@7..8 "{"
+      WHITESPACE@8..9 "\n"
+      R_CURLY@9..10 "}"
+  WHITESPACE@10..12 "\n\n"
+  EXTERN_BLOCK@12..26
+    ABI@12..22
+      EXTERN_KW@12..18 "extern"
+      WHITESPACE@18..19 " "
+      STRING@19..22 "\"C\""
+    WHITESPACE@22..23 " "
+    EXTERN_ITEM_LIST@23..26
+      L_CURLY@23..24 "{"
+      WHITESPACE@24..25 "\n"
+      R_CURLY@25..26 "}"
+  WHITESPACE@26..27 "\n"
diff --git a/crates/ra_syntax/test_data/parser/ok/0023_static_items.rast b/crates/ra_syntax/test_data/parser/ok/0023_static_items.rast
index dadf24fa6..97d90dc75 100644
--- a/crates/ra_syntax/test_data/parser/ok/0023_static_items.rast
+++ b/crates/ra_syntax/test_data/parser/ok/0023_static_items.rast
@@ -1,41 +1,41 @@
-SOURCE_FILE@[0; 47)
-  STATIC_DEF@[0; 20)
-    STATIC_KW@[0; 6) "static"
-    WHITESPACE@[6; 7) " "
-    NAME@[7; 10)
-      IDENT@[7; 10) "FOO"
-    COLON@[10; 11) ":"
-    WHITESPACE@[11; 12) " "
-    PATH_TYPE@[12; 15)
-      PATH@[12; 15)
-        PATH_SEGMENT@[12; 15)
-          NAME_REF@[12; 15)
-            IDENT@[12; 15) "u32"
-    WHITESPACE@[15; 16) " "
-    EQ@[16; 17) "="
-    WHITESPACE@[17; 18) " "
-    LITERAL@[18; 19)
-      INT_NUMBER@[18; 19) "1"
-    SEMICOLON@[19; 20) ";"
-  WHITESPACE@[20; 21) "\n"
-  STATIC_DEF@[21; 46)
-    STATIC_KW@[21; 27) "static"
-    WHITESPACE@[27; 28) " "
-    MUT_KW@[28; 31) "mut"
-    WHITESPACE@[31; 32) " "
-    NAME@[32; 35)
-      IDENT@[32; 35) "BAR"
-    COLON@[35; 36) ":"
-    WHITESPACE@[36; 37) " "
-    PATH_TYPE@[37; 40)
-      PATH@[37; 40)
-        PATH_SEGMENT@[37; 40)
-          NAME_REF@[37; 40)
-            IDENT@[37; 40) "i32"
-    WHITESPACE@[40; 41) " "
-    EQ@[41; 42) "="
-    WHITESPACE@[42; 43) " "
-    LITERAL@[43; 45)
-      INT_NUMBER@[43; 45) "92"
-    SEMICOLON@[45; 46) ";"
-  WHITESPACE@[46; 47) "\n"
+SOURCE_FILE@0..47
+  STATIC_DEF@0..20
+    STATIC_KW@0..6 "static"
+    WHITESPACE@6..7 " "
+    NAME@7..10
+      IDENT@7..10 "FOO"
+    COLON@10..11 ":"
+    WHITESPACE@11..12 " "
+    PATH_TYPE@12..15
+      PATH@12..15
+        PATH_SEGMENT@12..15
+          NAME_REF@12..15
+            IDENT@12..15 "u32"
+    WHITESPACE@15..16 " "
+    EQ@16..17 "="
+    WHITESPACE@17..18 " "
+    LITERAL@18..19
+      INT_NUMBER@18..19 "1"
+    SEMICOLON@19..20 ";"
+  WHITESPACE@20..21 "\n"
+  STATIC_DEF@21..46
+    STATIC_KW@21..27 "static"
+    WHITESPACE@27..28 " "
+    MUT_KW@28..31 "mut"
+    WHITESPACE@31..32 " "
+    NAME@32..35
+      IDENT@32..35 "BAR"
+    COLON@35..36 ":"
+    WHITESPACE@36..37 " "
+    PATH_TYPE@37..40
+      PATH@37..40
+        PATH_SEGMENT@37..40
+          NAME_REF@37..40
+            IDENT@37..40 "i32"
+    WHITESPACE@40..41 " "
+    EQ@41..42 "="
+    WHITESPACE@42..43 " "
+    LITERAL@43..45
+      INT_NUMBER@43..45 "92"
+    SEMICOLON@45..46 ";"
+  WHITESPACE@46..47 "\n"
diff --git a/crates/ra_syntax/test_data/parser/ok/0024_const_item.rast b/crates/ra_syntax/test_data/parser/ok/0024_const_item.rast
index 262e31f7f..d241f034c 100644
--- a/crates/ra_syntax/test_data/parser/ok/0024_const_item.rast
+++ b/crates/ra_syntax/test_data/parser/ok/0024_const_item.rast
@@ -1,59 +1,59 @@
-SOURCE_FILE@[0; 64)
-  CONST_DEF@[0; 17)
-    CONST_KW@[0; 5) "const"
-    WHITESPACE@[5; 6) " "
-    UNDERSCORE@[6; 7) "_"
-    COLON@[7; 8) ":"
-    WHITESPACE@[8; 9) " "
-    PATH_TYPE@[9; 12)
-      PATH@[9; 12)
-        PATH_SEGMENT@[9; 12)
-          NAME_REF@[9; 12)
-            IDENT@[9; 12) "u32"
-    WHITESPACE@[12; 13) " "
-    EQ@[13; 14) "="
-    WHITESPACE@[14; 15) " "
-    LITERAL@[15; 16)
-      INT_NUMBER@[15; 16) "0"
-    SEMICOLON@[16; 17) ";"
-  WHITESPACE@[17; 18) "\n"
-  CONST_DEF@[18; 38)
-    CONST_KW@[18; 23) "const"
-    WHITESPACE@[23; 24) " "
-    NAME@[24; 27)
-      IDENT@[24; 27) "FOO"
-    COLON@[27; 28) ":"
-    WHITESPACE@[28; 29) " "
-    PATH_TYPE@[29; 32)
-      PATH@[29; 32)
-        PATH_SEGMENT@[29; 32)
-          NAME_REF@[29; 32)
-            IDENT@[29; 32) "u32"
-    WHITESPACE@[32; 33) " "
-    EQ@[33; 34) "="
-    WHITESPACE@[34; 35) " "
-    LITERAL@[35; 37)
-      INT_NUMBER@[35; 37) "92"
-    SEMICOLON@[37; 38) ";"
-  WHITESPACE@[38; 39) "\n"
-  CONST_DEF@[39; 63)
-    CONST_KW@[39; 44) "const"
-    WHITESPACE@[44; 45) " "
-    MUT_KW@[45; 48) "mut"
-    WHITESPACE@[48; 49) " "
-    NAME@[49; 52)
-      IDENT@[49; 52) "BAR"
-    COLON@[52; 53) ":"
-    WHITESPACE@[53; 54) " "
-    PATH_TYPE@[54; 57)
-      PATH@[54; 57)
-        PATH_SEGMENT@[54; 57)
-          NAME_REF@[54; 57)
-            IDENT@[54; 57) "u32"
-    WHITESPACE@[57; 58) " "
-    EQ@[58; 59) "="
-    WHITESPACE@[59; 60) " "
-    LITERAL@[60; 62)
-      INT_NUMBER@[60; 62) "62"
-    SEMICOLON@[62; 63) ";"
-  WHITESPACE@[63; 64) "\n"
+SOURCE_FILE@0..64
+  CONST_DEF@0..17
+    CONST_KW@0..5 "const"
+    WHITESPACE@5..6 " "
+    UNDERSCORE@6..7 "_"
+    COLON@7..8 ":"
+    WHITESPACE@8..9 " "
+    PATH_TYPE@9..12
+      PATH@9..12
+        PATH_SEGMENT@9..12
+          NAME_REF@9..12
+            IDENT@9..12 "u32"
+    WHITESPACE@12..13 " "
+    EQ@13..14 "="
+    WHITESPACE@14..15 " "
+    LITERAL@15..16
+      INT_NUMBER@15..16 "0"
+    SEMICOLON@16..17 ";"
+  WHITESPACE@17..18 "\n"
+  CONST_DEF@18..38
+    CONST_KW@18..23 "const"
+    WHITESPACE@23..24 " "
+    NAME@24..27
+      IDENT@24..27 "FOO"
+    COLON@27..28 ":"
+    WHITESPACE@28..29 " "
+    PATH_TYPE@29..32
+      PATH@29..32
+        PATH_SEGMENT@29..32
+          NAME_REF@29..32
+            IDENT@29..32 "u32"
+    WHITESPACE@32..33 " "
+    EQ@33..34 "="
+    WHITESPACE@34..35 " "
+    LITERAL@35..37
+      INT_NUMBER@35..37 "92"
+    SEMICOLON@37..38 ";"
+  WHITESPACE@38..39 "\n"
+  CONST_DEF@39..63
+    CONST_KW@39..44 "const"
+    WHITESPACE@44..45 " "
+    MUT_KW@45..48 "mut"
+    WHITESPACE@48..49 " "
+    NAME@49..52
+      IDENT@49..52 "BAR"
+    COLON@52..53 ":"
+    WHITESPACE@53..54 " "
+    PATH_TYPE@54..57
+      PATH@54..57
+        PATH_SEGMENT@54..57
+          NAME_REF@54..57
+            IDENT@54..57 "u32"
+    WHITESPACE@57..58 " "
+    EQ@58..59 "="
+    WHITESPACE@59..60 " "
+    LITERAL@60..62
+      INT_NUMBER@60..62 "62"
+    SEMICOLON@62..63 ";"
+  WHITESPACE@63..64 "\n"
diff --git a/crates/ra_syntax/test_data/parser/ok/0025_extern_fn_in_block.rast b/crates/ra_syntax/test_data/parser/ok/0025_extern_fn_in_block.rast
index f5a7a1a5a..60af55837 100644
--- a/crates/ra_syntax/test_data/parser/ok/0025_extern_fn_in_block.rast
+++ b/crates/ra_syntax/test_data/parser/ok/0025_extern_fn_in_block.rast
@@ -1,33 +1,33 @@
-SOURCE_FILE@[0; 35)
-  FN_DEF@[0; 34)
-    FN_KW@[0; 2) "fn"
-    WHITESPACE@[2; 3) " "
-    NAME@[3; 7)
-      IDENT@[3; 7) "main"
-    PARAM_LIST@[7; 9)
-      L_PAREN@[7; 8) "("
-      R_PAREN@[8; 9) ")"
-    WHITESPACE@[9; 10) " "
-    BLOCK_EXPR@[10; 34)
-      BLOCK@[10; 34)
-        L_CURLY@[10; 11) "{"
-        WHITESPACE@[11; 16) "\n    "
-        FN_DEF@[16; 32)
-          ABI@[16; 22)
-            EXTERN_KW@[16; 22) "extern"
-          WHITESPACE@[22; 23) " "
-          FN_KW@[23; 25) "fn"
-          WHITESPACE@[25; 26) " "
-          NAME@[26; 27)
-            IDENT@[26; 27) "f"
-          PARAM_LIST@[27; 29)
-            L_PAREN@[27; 28) "("
-            R_PAREN@[28; 29) ")"
-          WHITESPACE@[29; 30) " "
-          BLOCK_EXPR@[30; 32)
-            BLOCK@[30; 32)
-              L_CURLY@[30; 31) "{"
-              R_CURLY@[31; 32) "}"
-        WHITESPACE@[32; 33) "\n"
-        R_CURLY@[33; 34) "}"
-  WHITESPACE@[34; 35) "\n"
+SOURCE_FILE@0..35
+  FN_DEF@0..34
+    FN_KW@0..2 "fn"
+    WHITESPACE@2..3 " "
+    NAME@3..7
+      IDENT@3..7 "main"
+    PARAM_LIST@7..9
+      L_PAREN@7..8 "("
+      R_PAREN@8..9 ")"
+    WHITESPACE@9..10 " "
+    BLOCK_EXPR@10..34
+      BLOCK@10..34
+        L_CURLY@10..11 "{"
+        WHITESPACE@11..16 "\n    "
+        FN_DEF@16..32
+          ABI@16..22
+            EXTERN_KW@16..22 "extern"
+          WHITESPACE@22..23 " "
+          FN_KW@23..25 "fn"
+          WHITESPACE@25..26 " "
+          NAME@26..27
+            IDENT@26..27 "f"
+          PARAM_LIST@27..29
+            L_PAREN@27..28 "("
+            R_PAREN@28..29 ")"
+          WHITESPACE@29..30 " "
+          BLOCK_EXPR@30..32
+            BLOCK@30..32
+              L_CURLY@30..31 "{"
+              R_CURLY@31..32 "}"
+        WHITESPACE@32..33 "\n"
+        R_CURLY@33..34 "}"
+  WHITESPACE@34..35 "\n"
diff --git a/crates/ra_syntax/test_data/parser/ok/0026_const_fn_in_block.rast b/crates/ra_syntax/test_data/parser/ok/0026_const_fn_in_block.rast
index f9b1dcf1a..4432c0163 100644
--- a/crates/ra_syntax/test_data/parser/ok/0026_const_fn_in_block.rast
+++ b/crates/ra_syntax/test_data/parser/ok/0026_const_fn_in_block.rast
@@ -1,32 +1,32 @@
-SOURCE_FILE@[0; 34)
-  FN_DEF@[0; 33)
-    FN_KW@[0; 2) "fn"
-    WHITESPACE@[2; 3) " "
-    NAME@[3; 7)
-      IDENT@[3; 7) "main"
-    PARAM_LIST@[7; 9)
-      L_PAREN@[7; 8) "("
-      R_PAREN@[8; 9) ")"
-    WHITESPACE@[9; 10) " "
-    BLOCK_EXPR@[10; 33)
-      BLOCK@[10; 33)
-        L_CURLY@[10; 11) "{"
-        WHITESPACE@[11; 16) "\n    "
-        FN_DEF@[16; 31)
-          CONST_KW@[16; 21) "const"
-          WHITESPACE@[21; 22) " "
-          FN_KW@[22; 24) "fn"
-          WHITESPACE@[24; 25) " "
-          NAME@[25; 26)
-            IDENT@[25; 26) "f"
-          PARAM_LIST@[26; 28)
-            L_PAREN@[26; 27) "("
-            R_PAREN@[27; 28) ")"
-          WHITESPACE@[28; 29) " "
-          BLOCK_EXPR@[29; 31)
-            BLOCK@[29; 31)
-              L_CURLY@[29; 30) "{"
-              R_CURLY@[30; 31) "}"
-        WHITESPACE@[31; 32) "\n"
-        R_CURLY@[32; 33) "}"
-  WHITESPACE@[33; 34) "\n"
+SOURCE_FILE@0..34
+  FN_DEF@0..33
+    FN_KW@0..2 "fn"
+    WHITESPACE@2..3 " "
+    NAME@3..7
+      IDENT@3..7 "main"
+    PARAM_LIST@7..9
+      L_PAREN@7..8 "("
+      R_PAREN@8..9 ")"
+    WHITESPACE@9..10 " "
+    BLOCK_EXPR@10..33
+      BLOCK@10..33
+        L_CURLY@10..11 "{"
+        WHITESPACE@11..16 "\n    "
+        FN_DEF@16..31
+          CONST_KW@16..21 "const"
+          WHITESPACE@21..22 " "
+          FN_KW@22..24 "fn"
+          WHITESPACE@24..25 " "
+          NAME@25..26
+            IDENT@25..26 "f"
+          PARAM_LIST@26..28
+            L_PAREN@26..27 "("
+            R_PAREN@27..28 ")"
+          WHITESPACE@28..29 " "
+          BLOCK_EXPR@29..31
+            BLOCK@29..31
+              L_CURLY@29..30 "{"
+              R_CURLY@30..31 "}"
+        WHITESPACE@31..32 "\n"
+        R_CURLY@32..33 "}"
+  WHITESPACE@33..34 "\n"
diff --git a/crates/ra_syntax/test_data/parser/ok/0027_unsafe_fn_in_block.rast b/crates/ra_syntax/test_data/parser/ok/0027_unsafe_fn_in_block.rast
index 9fb7b70a0..c0162c609 100644
--- a/crates/ra_syntax/test_data/parser/ok/0027_unsafe_fn_in_block.rast
+++ b/crates/ra_syntax/test_data/parser/ok/0027_unsafe_fn_in_block.rast
@@ -1,43 +1,43 @@
-SOURCE_FILE@[0; 53)
-  FN_DEF@[0; 52)
-    FN_KW@[0; 2) "fn"
-    WHITESPACE@[2; 3) " "
-    NAME@[3; 7)
-      IDENT@[3; 7) "main"
-    PARAM_LIST@[7; 9)
-      L_PAREN@[7; 8) "("
-      R_PAREN@[8; 9) ")"
-    WHITESPACE@[9; 10) " "
-    BLOCK_EXPR@[10; 52)
-      BLOCK@[10; 52)
-        L_CURLY@[10; 11) "{"
-        WHITESPACE@[11; 16) "\n    "
-        FN_DEF@[16; 32)
-          UNSAFE_KW@[16; 22) "unsafe"
-          WHITESPACE@[22; 23) " "
-          FN_KW@[23; 25) "fn"
-          WHITESPACE@[25; 26) " "
-          NAME@[26; 27)
-            IDENT@[26; 27) "f"
-          PARAM_LIST@[27; 29)
-            L_PAREN@[27; 28) "("
-            R_PAREN@[28; 29) ")"
-          WHITESPACE@[29; 30) " "
-          BLOCK_EXPR@[30; 32)
-            BLOCK@[30; 32)
-              L_CURLY@[30; 31) "{"
-              R_CURLY@[31; 32) "}"
-        WHITESPACE@[32; 37) "\n    "
-        BLOCK_EXPR@[37; 50)
-          UNSAFE_KW@[37; 43) "unsafe"
-          WHITESPACE@[43; 44) " "
-          BLOCK@[44; 50)
-            L_CURLY@[44; 45) "{"
-            WHITESPACE@[45; 46) " "
-            LITERAL@[46; 48)
-              INT_NUMBER@[46; 48) "92"
-            WHITESPACE@[48; 49) " "
-            R_CURLY@[49; 50) "}"
-        WHITESPACE@[50; 51) "\n"
-        R_CURLY@[51; 52) "}"
-  WHITESPACE@[52; 53) "\n"
+SOURCE_FILE@0..53
+  FN_DEF@0..52
+    FN_KW@0..2 "fn"
+    WHITESPACE@2..3 " "
+    NAME@3..7
+      IDENT@3..7 "main"
+    PARAM_LIST@7..9
+      L_PAREN@7..8 "("
+      R_PAREN@8..9 ")"
+    WHITESPACE@9..10 " "
+    BLOCK_EXPR@10..52
+      BLOCK@10..52
+        L_CURLY@10..11 "{"
+        WHITESPACE@11..16 "\n    "
+        FN_DEF@16..32
+          UNSAFE_KW@16..22 "unsafe"
+          WHITESPACE@22..23 " "
+          FN_KW@23..25 "fn"
+          WHITESPACE@25..26 " "
+          NAME@26..27
+            IDENT@26..27 "f"
+          PARAM_LIST@27..29
+            L_PAREN@27..28 "("
+            R_PAREN@28..29 ")"
+          WHITESPACE@29..30 " "
+          BLOCK_EXPR@30..32
+            BLOCK@30..32
+              L_CURLY@30..31 "{"
+              R_CURLY@31..32 "}"
+        WHITESPACE@32..37 "\n    "
+        BLOCK_EXPR@37..50
+          UNSAFE_KW@37..43 "unsafe"
+          WHITESPACE@43..44 " "
+          BLOCK@44..50
+            L_CURLY@44..45 "{"
+            WHITESPACE@45..46 " "
+            LITERAL@46..48
+              INT_NUMBER@46..48 "92"
+            WHITESPACE@48..49 " "
+            R_CURLY@49..50 "}"
+        WHITESPACE@50..51 "\n"
+        R_CURLY@51..52 "}"
+  WHITESPACE@52..53 "\n"
diff --git a/crates/ra_syntax/test_data/parser/ok/0028_operator_binding_power.rast b/crates/ra_syntax/test_data/parser/ok/0028_operator_binding_power.rast
index 5542f7701..6c0daef52 100644
--- a/crates/ra_syntax/test_data/parser/ok/0028_operator_binding_power.rast
+++ b/crates/ra_syntax/test_data/parser/ok/0028_operator_binding_power.rast
@@ -1,186 +1,186 @@
-SOURCE_FILE@[0; 248)
-  FN_DEF@[0; 247)
-    FN_KW@[0; 2) "fn"
-    WHITESPACE@[2; 3) " "
-    NAME@[3; 16)
-      IDENT@[3; 16) "binding_power"
-    PARAM_LIST@[16; 18)
-      L_PAREN@[16; 17) "("
-      R_PAREN@[17; 18) ")"
-    WHITESPACE@[18; 19) " "
-    BLOCK_EXPR@[19; 247)
-      BLOCK@[19; 247)
-        L_CURLY@[19; 20) "{"
-        WHITESPACE@[20; 25) "\n    "
-        LET_STMT@[25; 55)
-          LET_KW@[25; 28) "let"
-          WHITESPACE@[28; 29) " "
-          BIND_PAT@[29; 30)
-            NAME@[29; 30)
-              IDENT@[29; 30) "x"
-          WHITESPACE@[30; 31) " "
-          EQ@[31; 32) "="
-          WHITESPACE@[32; 33) " "
-          BIN_EXPR@[33; 54)
-            BIN_EXPR@[33; 46)
-              LITERAL@[33; 34)
-                INT_NUMBER@[33; 34) "1"
-              WHITESPACE@[34; 35) " "
-              PLUS@[35; 36) "+"
-              WHITESPACE@[36; 37) " "
-              BIN_EXPR@[37; 46)
-                BIN_EXPR@[37; 42)
-                  LITERAL@[37; 38)
-                    INT_NUMBER@[37; 38) "2"
-                  WHITESPACE@[38; 39) " "
-                  STAR@[39; 40) "*"
-                  WHITESPACE@[40; 41) " "
-                  LITERAL@[41; 42)
-                    INT_NUMBER@[41; 42) "3"
-                WHITESPACE@[42; 43) " "
-                PERCENT@[43; 44) "%"
-                WHITESPACE@[44; 45) " "
-                LITERAL@[45; 46)
-                  INT_NUMBER@[45; 46) "4"
-            WHITESPACE@[46; 47) " "
-            MINUS@[47; 48) "-"
-            WHITESPACE@[48; 49) " "
-            BIN_EXPR@[49; 54)
-              LITERAL@[49; 50)
-                INT_NUMBER@[49; 50) "5"
-              WHITESPACE@[50; 51) " "
-              SLASH@[51; 52) "/"
-              WHITESPACE@[52; 53) " "
-              LITERAL@[53; 54)
-                INT_NUMBER@[53; 54) "6"
-          SEMICOLON@[54; 55) ";"
-        WHITESPACE@[55; 60) "\n    "
-        EXPR_STMT@[60; 70)
-          BIN_EXPR@[60; 69)
-            LITERAL@[60; 61)
-              INT_NUMBER@[60; 61) "1"
-            WHITESPACE@[61; 62) " "
-            PLUS@[62; 63) "+"
-            WHITESPACE@[63; 64) " "
-            BIN_EXPR@[64; 69)
-              LITERAL@[64; 65)
-                INT_NUMBER@[64; 65) "2"
-              WHITESPACE@[65; 66) " "
-              STAR@[66; 67) "*"
-              WHITESPACE@[67; 68) " "
-              LITERAL@[68; 69)
-                INT_NUMBER@[68; 69) "3"
-          SEMICOLON@[69; 70) ";"
-        WHITESPACE@[70; 75) "\n    "
-        EXPR_STMT@[75; 86)
-          BIN_EXPR@[75; 85)
-            LITERAL@[75; 76)
-              INT_NUMBER@[75; 76) "1"
-            WHITESPACE@[76; 77) " "
-            SHL@[77; 79) "<<"
-            WHITESPACE@[79; 80) " "
-            BIN_EXPR@[80; 85)
-              LITERAL@[80; 81)
-                INT_NUMBER@[80; 81) "2"
-              WHITESPACE@[81; 82) " "
-              PLUS@[82; 83) "+"
-              WHITESPACE@[83; 84) " "
-              LITERAL@[84; 85)
-                INT_NUMBER@[84; 85) "3"
-          SEMICOLON@[85; 86) ";"
-        WHITESPACE@[86; 91) "\n    "
-        EXPR_STMT@[91; 102)
-          BIN_EXPR@[91; 101)
-            LITERAL@[91; 92)
-              INT_NUMBER@[91; 92) "1"
-            WHITESPACE@[92; 93) " "
-            AMP@[93; 94) "&"
-            WHITESPACE@[94; 95) " "
-            BIN_EXPR@[95; 101)
-              LITERAL@[95; 96)
-                INT_NUMBER@[95; 96) "2"
-              WHITESPACE@[96; 97) " "
-              SHR@[97; 99) ">>"
-              WHITESPACE@[99; 100) " "
-              LITERAL@[100; 101)
-                INT_NUMBER@[100; 101) "3"
-          SEMICOLON@[101; 102) ";"
-        WHITESPACE@[102; 107) "\n    "
-        EXPR_STMT@[107; 117)
-          BIN_EXPR@[107; 116)
-            LITERAL@[107; 108)
-              INT_NUMBER@[107; 108) "1"
-            WHITESPACE@[108; 109) " "
-            CARET@[109; 110) "^"
-            WHITESPACE@[110; 111) " "
-            BIN_EXPR@[111; 116)
-              LITERAL@[111; 112)
-                INT_NUMBER@[111; 112) "2"
-              WHITESPACE@[112; 113) " "
-              AMP@[113; 114) "&"
-              WHITESPACE@[114; 115) " "
-              LITERAL@[115; 116)
-                INT_NUMBER@[115; 116) "3"
-          SEMICOLON@[116; 117) ";"
-        WHITESPACE@[117; 122) "\n    "
-        EXPR_STMT@[122; 132)
-          BIN_EXPR@[122; 131)
-            LITERAL@[122; 123)
-              INT_NUMBER@[122; 123) "1"
-            WHITESPACE@[123; 124) " "
-            PIPE@[124; 125) "|"
-            WHITESPACE@[125; 126) " "
-            BIN_EXPR@[126; 131)
-              LITERAL@[126; 127)
-                INT_NUMBER@[126; 127) "2"
-              WHITESPACE@[127; 128) " "
-              CARET@[128; 129) "^"
-              WHITESPACE@[129; 130) " "
-              LITERAL@[130; 131)
-                INT_NUMBER@[130; 131) "3"
-          SEMICOLON@[131; 132) ";"
-        WHITESPACE@[132; 137) "\n    "
-        EXPR_STMT@[137; 148)
-          BIN_EXPR@[137; 147)
-            LITERAL@[137; 138)
-              INT_NUMBER@[137; 138) "1"
-            WHITESPACE@[138; 139) " "
-            EQ2@[139; 141) "=="
-            WHITESPACE@[141; 142) " "
-            BIN_EXPR@[142; 147)
-              LITERAL@[142; 143)
-                INT_NUMBER@[142; 143) "2"
-              WHITESPACE@[143; 144) " "
-              PIPE@[144; 145) "|"
-              WHITESPACE@[145; 146) " "
-              LITERAL@[146; 147)
-                INT_NUMBER@[146; 147) "3"
-          SEMICOLON@[147; 148) ";"
-        WHITESPACE@[148; 153) "\n    "
-        EXPR_STMT@[153; 165)
-          BIN_EXPR@[153; 164)
-            LITERAL@[153; 154)
-              INT_NUMBER@[153; 154) "1"
-            WHITESPACE@[154; 155) " "
-            AMP2@[155; 157) "&&"
-            WHITESPACE@[157; 158) " "
-            BIN_EXPR@[158; 164)
-              LITERAL@[158; 159)
-                INT_NUMBER@[158; 159) "2"
-              WHITESPACE@[159; 160) " "
-              EQ2@[160; 162) "=="
-              WHITESPACE@[162; 163) " "
-              LITERAL@[163; 164)
-                INT_NUMBER@[163; 164) "3"
-          SEMICOLON@[164; 165) ";"
-        WHITESPACE@[165; 170) "\n    "
-        COMMENT@[170; 184) "//1 || 2 && 2;"
-        WHITESPACE@[184; 189) "\n    "
-        COMMENT@[189; 203) "//1 .. 2 || 3;"
-        WHITESPACE@[203; 208) "\n    "
-        COMMENT@[208; 221) "//1 = 2 .. 3;"
-        WHITESPACE@[221; 226) "\n    "
-        COMMENT@[226; 245) "//---&*1 - --2 * 9;"
-        WHITESPACE@[245; 246) "\n"
-        R_CURLY@[246; 247) "}"
-  WHITESPACE@[247; 248) "\n"
+SOURCE_FILE@0..248
+  FN_DEF@0..247
+    FN_KW@0..2 "fn"
+    WHITESPACE@2..3 " "
+    NAME@3..16
+      IDENT@3..16 "binding_power"
+    PARAM_LIST@16..18
+      L_PAREN@16..17 "("
+      R_PAREN@17..18 ")"
+    WHITESPACE@18..19 " "
+    BLOCK_EXPR@19..247
+      BLOCK@19..247
+        L_CURLY@19..20 "{"
+        WHITESPACE@20..25 "\n    "
+        LET_STMT@25..55
+          LET_KW@25..28 "let"
+          WHITESPACE@28..29 " "
+          BIND_PAT@29..30
+            NAME@29..30
+              IDENT@29..30 "x"
+          WHITESPACE@30..31 " "
+          EQ@31..32 "="
+          WHITESPACE@32..33 " "
+          BIN_EXPR@33..54
+            BIN_EXPR@33..46
+              LITERAL@33..34
+                INT_NUMBER@33..34 "1"
+              WHITESPACE@34..35 " "
+              PLUS@35..36 "+"
+              WHITESPACE@36..37 " "
+              BIN_EXPR@37..46
+                BIN_EXPR@37..42
+                  LITERAL@37..38
+                    INT_NUMBER@37..38 "2"
+                  WHITESPACE@38..39 " "
+                  STAR@39..40 "*"
+                  WHITESPACE@40..41 " "
+                  LITERAL@41..42
+                    INT_NUMBER@41..42 "3"
+                WHITESPACE@42..43 " "
+                PERCENT@43..44 "%"
+                WHITESPACE@44..45 " "
+                LITERAL@45..46
+                  INT_NUMBER@45..46 "4"
+            WHITESPACE@46..47 " "
+            MINUS@47..48 "-"
+            WHITESPACE@48..49 " "
+            BIN_EXPR@49..54
+              LITERAL@49..50
+                INT_NUMBER@49..50 "5"
+              WHITESPACE@50..51 " "
+              SLASH@51..52 "/"
+              WHITESPACE@52..53 " "
+              LITERAL@53..54
+                INT_NUMBER@53..54 "6"
+          SEMICOLON@54..55 ";"
+        WHITESPACE@55..60 "\n    "
+        EXPR_STMT@60..70
+          BIN_EXPR@60..69
+            LITERAL@60..61
+              INT_NUMBER@60..61 "1"
+            WHITESPACE@61..62 " "
+            PLUS@62..63 "+"
+            WHITESPACE@63..64 " "
+            BIN_EXPR@64..69
+              LITERAL@64..65
+                INT_NUMBER@64..65 "2"
+              WHITESPACE@65..66 " "
+              STAR@66..67 "*"
+              WHITESPACE@67..68 " "
+              LITERAL@68..69
+                INT_NUMBER@68..69 "3"
+          SEMICOLON@69..70 ";"
+        WHITESPACE@70..75 "\n    "
+        EXPR_STMT@75..86
+          BIN_EXPR@75..85
+            LITERAL@75..76
+              INT_NUMBER@75..76 "1"
+            WHITESPACE@76..77 " "
+            SHL@77..79 "<<"
+            WHITESPACE@79..80 " "
+            BIN_EXPR@80..85
+              LITERAL@80..81
+                INT_NUMBER@80..81 "2"
+              WHITESPACE@81..82 " "
+              PLUS@82..83 "+"
+              WHITESPACE@83..84 " "
+              LITERAL@84..85
+                INT_NUMBER@84..85 "3"
+          SEMICOLON@85..86 ";"
+        WHITESPACE@86..91 "\n    "
+        EXPR_STMT@91..102
+          BIN_EXPR@91..101
+            LITERAL@91..92
+              INT_NUMBER@91..92 "1"
+            WHITESPACE@92..93 " "
+            AMP@93..94 "&"
+            WHITESPACE@94..95 " "
+            BIN_EXPR@95..101
+              LITERAL@95..96
+                INT_NUMBER@95..96 "2"
+              WHITESPACE@96..97 " "
+              SHR@97..99 ">>"
+              WHITESPACE@99..100 " "
+              LITERAL@100..101
+                INT_NUMBER@100..101 "3"
+          SEMICOLON@101..102 ";"
+        WHITESPACE@102..107 "\n    "
+        EXPR_STMT@107..117
+          BIN_EXPR@107..116
+            LITERAL@107..108
+              INT_NUMBER@107..108 "1"
+            WHITESPACE@108..109 " "
+            CARET@109..110 "^"
+            WHITESPACE@110..111 " "
+            BIN_EXPR@111..116
+              LITERAL@111..112
+                INT_NUMBER@111..112 "2"
+              WHITESPACE@112..113 " "
+              AMP@113..114 "&"
+              WHITESPACE@114..115 " "
+              LITERAL@115..116
+                INT_NUMBER@115..116 "3"
+          SEMICOLON@116..117 ";"
+        WHITESPACE@117..122 "\n    "
+        EXPR_STMT@122..132
+          BIN_EXPR@122..131
+            LITERAL@122..123
+              INT_NUMBER@122..123 "1"
+            WHITESPACE@123..124 " "
+            PIPE@124..125 "|"
+            WHITESPACE@125..126 " "
+            BIN_EXPR@126..131
+              LITERAL@126..127
+                INT_NUMBER@126..127 "2"
+              WHITESPACE@127..128 " "
+              CARET@128..129 "^"
+              WHITESPACE@129..130 " "
+              LITERAL@130..131
+                INT_NUMBER@130..131 "3"
+          SEMICOLON@131..132 ";"
+        WHITESPACE@132..137 "\n    "
+        EXPR_STMT@137..148
+          BIN_EXPR@137..147
+            LITERAL@137..138
+              INT_NUMBER@137..138 "1"
+            WHITESPACE@138..139 " "
+            EQ2@139..141 "=="
+            WHITESPACE@141..142 " "
+            BIN_EXPR@142..147
+              LITERAL@142..143
+                INT_NUMBER@142..143 "2"
+              WHITESPACE@143..144 " "
+              PIPE@144..145 "|"
+              WHITESPACE@145..146 " "
+              LITERAL@146..147
+                INT_NUMBER@146..147 "3"
+          SEMICOLON@147..148 ";"
+        WHITESPACE@148..153 "\n    "
+        EXPR_STMT@153..165
+          BIN_EXPR@153..164
+            LITERAL@153..154
+              INT_NUMBER@153..154 "1"
+            WHITESPACE@154..155 " "
+            AMP2@155..157 "&&"
+            WHITESPACE@157..158 " "
+            BIN_EXPR@158..164
+              LITERAL@158..159
+                INT_NUMBER@158..159 "2"
+              WHITESPACE@159..160 " "
+              EQ2@160..162 "=="
+              WHITESPACE@162..163 " "
+              LITERAL@163..164
+                INT_NUMBER@163..164 "3"
+          SEMICOLON@164..165 ";"
+        WHITESPACE@165..170 "\n    "
+        COMMENT@170..184 "//1 || 2 && 2;"
+        WHITESPACE@184..189 "\n    "
+        COMMENT@189..203 "//1 .. 2 || 3;"
+        WHITESPACE@203..208 "\n    "
+        COMMENT@208..221 "//1 = 2 .. 3;"
+        WHITESPACE@221..226 "\n    "
+        COMMENT@226..245 "//---&*1 - --2 * 9;"
+        WHITESPACE@245..246 "\n"
+        R_CURLY@246..247 "}"
+  WHITESPACE@247..248 "\n"
diff --git a/crates/ra_syntax/test_data/parser/ok/0029_range_forms.rast b/crates/ra_syntax/test_data/parser/ok/0029_range_forms.rast
index 78056aa95..8177bd89b 100644
--- a/crates/ra_syntax/test_data/parser/ok/0029_range_forms.rast
+++ b/crates/ra_syntax/test_data/parser/ok/0029_range_forms.rast
@@ -1,152 +1,152 @@
-SOURCE_FILE@[0; 153)
-  FN_DEF@[0; 152)
-    FN_KW@[0; 2) "fn"
-    WHITESPACE@[2; 3) " "
-    NAME@[3; 6)
-      IDENT@[3; 6) "foo"
-    PARAM_LIST@[6; 8)
-      L_PAREN@[6; 7) "("
-      R_PAREN@[7; 8) ")"
-    WHITESPACE@[8; 9) " "
-    BLOCK_EXPR@[9; 152)
-      BLOCK@[9; 152)
-        L_CURLY@[9; 10) "{"
-        WHITESPACE@[10; 15) "\n    "
-        EXPR_STMT@[15; 23)
-          RANGE_EXPR@[15; 22)
-            DOT2@[15; 17) ".."
-            BIN_EXPR@[17; 22)
-              LITERAL@[17; 18)
-                INT_NUMBER@[17; 18) "1"
-              WHITESPACE@[18; 19) " "
-              PLUS@[19; 20) "+"
-              WHITESPACE@[20; 21) " "
-              LITERAL@[21; 22)
-                INT_NUMBER@[21; 22) "1"
-          SEMICOLON@[22; 23) ";"
-        WHITESPACE@[23; 28) "\n    "
-        EXPR_STMT@[28; 36)
-          BIN_EXPR@[28; 35)
-            RANGE_EXPR@[28; 31)
-              DOT2@[28; 30) ".."
-              PATH_EXPR@[30; 31)
-                PATH@[30; 31)
-                  PATH_SEGMENT@[30; 31)
-                    NAME_REF@[30; 31)
-                      IDENT@[30; 31) "z"
-            WHITESPACE@[31; 32) " "
-            EQ@[32; 33) "="
-            WHITESPACE@[33; 34) " "
-            LITERAL@[34; 35)
-              INT_NUMBER@[34; 35) "2"
-          SEMICOLON@[35; 36) ";"
-        WHITESPACE@[36; 41) "\n    "
-        EXPR_STMT@[41; 59)
-          BIN_EXPR@[41; 58)
-            PATH_EXPR@[41; 42)
-              PATH@[41; 42)
-                PATH_SEGMENT@[41; 42)
-                  NAME_REF@[41; 42)
-                    IDENT@[41; 42) "x"
-            WHITESPACE@[42; 43) " "
-            EQ@[43; 44) "="
-            WHITESPACE@[44; 45) " "
-            RANGE_EXPR@[45; 58)
-              LITERAL@[45; 50)
-                FALSE_KW@[45; 50) "false"
-              DOT2@[50; 52) ".."
-              BIN_EXPR@[52; 58)
-                LITERAL@[52; 53)
-                  INT_NUMBER@[52; 53) "1"
-                WHITESPACE@[53; 54) " "
-                EQ2@[54; 56) "=="
-                WHITESPACE@[56; 57) " "
-                LITERAL@[57; 58)
-                  INT_NUMBER@[57; 58) "1"
-          SEMICOLON@[58; 59) ";"
-        WHITESPACE@[59; 64) "\n    "
-        LET_STMT@[64; 76)
-          LET_KW@[64; 67) "let"
-          WHITESPACE@[67; 68) " "
-          BIND_PAT@[68; 69)
-            NAME@[68; 69)
-              IDENT@[68; 69) "x"
-          WHITESPACE@[69; 70) " "
-          EQ@[70; 71) "="
-          WHITESPACE@[71; 72) " "
-          RANGE_EXPR@[72; 75)
-            LITERAL@[72; 73)
-              INT_NUMBER@[72; 73) "1"
-            DOT2@[73; 75) ".."
-          SEMICOLON@[75; 76) ";"
-        WHITESPACE@[76; 86) "\n    \n    "
-        EXPR_STMT@[86; 95)
-          RANGE_EXPR@[86; 94)
-            DOT2EQ@[86; 89) "..="
-            BIN_EXPR@[89; 94)
-              LITERAL@[89; 90)
-                INT_NUMBER@[89; 90) "1"
-              WHITESPACE@[90; 91) " "
-              PLUS@[91; 92) "+"
-              WHITESPACE@[92; 93) " "
-              LITERAL@[93; 94)
-                INT_NUMBER@[93; 94) "1"
-          SEMICOLON@[94; 95) ";"
-        WHITESPACE@[95; 100) "\n    "
-        EXPR_STMT@[100; 109)
-          BIN_EXPR@[100; 108)
-            RANGE_EXPR@[100; 104)
-              DOT2EQ@[100; 103) "..="
-              PATH_EXPR@[103; 104)
-                PATH@[103; 104)
-                  PATH_SEGMENT@[103; 104)
-                    NAME_REF@[103; 104)
-                      IDENT@[103; 104) "z"
-            WHITESPACE@[104; 105) " "
-            EQ@[105; 106) "="
-            WHITESPACE@[106; 107) " "
-            LITERAL@[107; 108)
-              INT_NUMBER@[107; 108) "2"
-          SEMICOLON@[108; 109) ";"
-        WHITESPACE@[109; 114) "\n    "
-        EXPR_STMT@[114; 133)
-          BIN_EXPR@[114; 132)
-            PATH_EXPR@[114; 115)
-              PATH@[114; 115)
-                PATH_SEGMENT@[114; 115)
-                  NAME_REF@[114; 115)
-                    IDENT@[114; 115) "x"
-            WHITESPACE@[115; 116) " "
-            EQ@[116; 117) "="
-            WHITESPACE@[117; 118) " "
-            RANGE_EXPR@[118; 132)
-              LITERAL@[118; 123)
-                FALSE_KW@[118; 123) "false"
-              DOT2EQ@[123; 126) "..="
-              BIN_EXPR@[126; 132)
-                LITERAL@[126; 127)
-                  INT_NUMBER@[126; 127) "1"
-                WHITESPACE@[127; 128) " "
-                EQ2@[128; 130) "=="
-                WHITESPACE@[130; 131) " "
-                LITERAL@[131; 132)
-                  INT_NUMBER@[131; 132) "1"
-          SEMICOLON@[132; 133) ";"
-        WHITESPACE@[133; 138) "\n    "
-        LET_STMT@[138; 150)
-          LET_KW@[138; 141) "let"
-          WHITESPACE@[141; 142) " "
-          BIND_PAT@[142; 143)
-            NAME@[142; 143)
-              IDENT@[142; 143) "x"
-          WHITESPACE@[143; 144) " "
-          EQ@[144; 145) "="
-          WHITESPACE@[145; 146) " "
-          RANGE_EXPR@[146; 149)
-            LITERAL@[146; 147)
-              INT_NUMBER@[146; 147) "1"
-            DOT2@[147; 149) ".."
-          SEMICOLON@[149; 150) ";"
-        WHITESPACE@[150; 151) "\n"
-        R_CURLY@[151; 152) "}"
-  WHITESPACE@[152; 153) "\n"
+SOURCE_FILE@0..153
+  FN_DEF@0..152
+    FN_KW@0..2 "fn"
+    WHITESPACE@2..3 " "
+    NAME@3..6
+      IDENT@3..6 "foo"
+    PARAM_LIST@6..8
+      L_PAREN@6..7 "("
+      R_PAREN@7..8 ")"
+    WHITESPACE@8..9 " "
+    BLOCK_EXPR@9..152
+      BLOCK@9..152
+        L_CURLY@9..10 "{"
+        WHITESPACE@10..15 "\n    "
+        EXPR_STMT@15..23
+          RANGE_EXPR@15..22
+            DOT2@15..17 ".."
+            BIN_EXPR@17..22
+              LITERAL@17..18
+                INT_NUMBER@17..18 "1"
+              WHITESPACE@18..19 " "
+              PLUS@19..20 "+"
+              WHITESPACE@20..21 " "
+              LITERAL@21..22
+                INT_NUMBER@21..22 "1"
+          SEMICOLON@22..23 ";"
+        WHITESPACE@23..28 "\n    "
+        EXPR_STMT@28..36
+          BIN_EXPR@28..35
+            RANGE_EXPR@28..31
+              DOT2@28..30 ".."
+              PATH_EXPR@30..31
+                PATH@30..31
+                  PATH_SEGMENT@30..31
+                    NAME_REF@30..31
+                      IDENT@30..31 "z"
+            WHITESPACE@31..32 " "
+            EQ@32..33 "="
+            WHITESPACE@33..34 " "
+            LITERAL@34..35
+              INT_NUMBER@34..35 "2"
+          SEMICOLON@35..36 ";"
+        WHITESPACE@36..41 "\n    "
+        EXPR_STMT@41..59
+          BIN_EXPR@41..58
+            PATH_EXPR@41..42
+              PATH@41..42
+                PATH_SEGMENT@41..42
+                  NAME_REF@41..42
+                    IDENT@41..42 "x"
+            WHITESPACE@42..43 " "
+            EQ@43..44 "="
+            WHITESPACE@44..45 " "
+            RANGE_EXPR@45..58
+              LITERAL@45..50
+                FALSE_KW@45..50 "false"
+              DOT2@50..52 ".."
+              BIN_EXPR@52..58
+                LITERAL@52..53
+                  INT_NUMBER@52..53 "1"
+                WHITESPACE@53..54 " "
+                EQ2@54..56 "=="
+                WHITESPACE@56..57 " "
+                LITERAL@57..58
+                  INT_NUMBER@57..58 "1"
+          SEMICOLON@58..59 ";"
+        WHITESPACE@59..64 "\n    "
+        LET_STMT@64..76
+          LET_KW@64..67 "let"
+          WHITESPACE@67..68 " "
+          BIND_PAT@68..69
+            NAME@68..69
+              IDENT@68..69 "x"
+          WHITESPACE@69..70 " "
+          EQ@70..71 "="
+          WHITESPACE@71..72 " "
+          RANGE_EXPR@72..75
+            LITERAL@72..73
+              INT_NUMBER@72..73 "1"
+            DOT2@73..75 ".."
+          SEMICOLON@75..76 ";"
+        WHITESPACE@76..86 "\n    \n    "
+        EXPR_STMT@86..95
+          RANGE_EXPR@86..94
+            DOT2EQ@86..89 "..="
+            BIN_EXPR@89..94
+              LITERAL@89..90
+                INT_NUMBER@89..90 "1"
+              WHITESPACE@90..91 " "
+              PLUS@91..92 "+"
+              WHITESPACE@92..93 " "
+              LITERAL@93..94
+                INT_NUMBER@93..94 "1"
+          SEMICOLON@94..95 ";"
+        WHITESPACE@95..100 "\n    "
+        EXPR_STMT@100..109
+          BIN_EXPR@100..108
+            RANGE_EXPR@100..104
+              DOT2EQ@100..103 "..="
+              PATH_EXPR@103..104
+                PATH@103..104
+                  PATH_SEGMENT@103..104
+                    NAME_REF@103..104
+                      IDENT@103..104 "z"
+            WHITESPACE@104..105 " "
+            EQ@105..106 "="
+            WHITESPACE@106..107 " "
+            LITERAL@107..108
+              INT_NUMBER@107..108 "2"
+          SEMICOLON@108..109 ";"
+        WHITESPACE@109..114 "\n    "
+        EXPR_STMT@114..133
+          BIN_EXPR@114..132
+            PATH_EXPR@114..115
+              PATH@114..115
+                PATH_SEGMENT@114..115
+                  NAME_REF@114..115
+                    IDENT@114..115 "x"
+            WHITESPACE@115..116 " "
+            EQ@116..117 "="
+            WHITESPACE@117..118 " "
+            RANGE_EXPR@118..132
+              LITERAL@118..123
+                FALSE_KW@118..123 "false"
+              DOT2EQ@123..126 "..="
+              BIN_EXPR@126..132
+                LITERAL@126..127
+                  INT_NUMBER@126..127 "1"
+                WHITESPACE@127..128 " "
+                EQ2@128..130 "=="
+                WHITESPACE@130..131 " "
+                LITERAL@131..132
+                  INT_NUMBER@131..132 "1"
+          SEMICOLON@132..133 ";"
+        WHITESPACE@133..138 "\n    "
+        LET_STMT@138..150
+          LET_KW@138..141 "let"
+          WHITESPACE@141..142 " "
+          BIND_PAT@142..143
+            NAME@142..143
+              IDENT@142..143 "x"
+          WHITESPACE@143..144 " "
+          EQ@144..145 "="
+          WHITESPACE@145..146 " "
+          RANGE_EXPR@146..149
+            LITERAL@146..147
+              INT_NUMBER@146..147 "1"
+            DOT2@147..149 ".."
+          SEMICOLON@149..150 ";"
+        WHITESPACE@150..151 "\n"
+        R_CURLY@151..152 "}"
+  WHITESPACE@152..153 "\n"
diff --git a/crates/ra_syntax/test_data/parser/ok/0030_string_suffixes.rast b/crates/ra_syntax/test_data/parser/ok/0030_string_suffixes.rast
index 4e583c6e8..953930f6c 100644
--- a/crates/ra_syntax/test_data/parser/ok/0030_string_suffixes.rast
+++ b/crates/ra_syntax/test_data/parser/ok/0030_string_suffixes.rast
@@ -1,64 +1,64 @@
-SOURCE_FILE@[0; 112)
-  FN_DEF@[0; 111)
-    FN_KW@[0; 2) "fn"
-    WHITESPACE@[2; 3) " "
-    NAME@[3; 7)
-      IDENT@[3; 7) "main"
-    PARAM_LIST@[7; 9)
-      L_PAREN@[7; 8) "("
-      R_PAREN@[8; 9) ")"
-    WHITESPACE@[9; 10) " "
-    BLOCK_EXPR@[10; 111)
-      BLOCK@[10; 111)
-        L_CURLY@[10; 11) "{"
-        WHITESPACE@[11; 16) "\n    "
-        LET_STMT@[16; 31)
-          LET_KW@[16; 19) "let"
-          WHITESPACE@[19; 20) " "
-          PLACEHOLDER_PAT@[20; 21)
-            UNDERSCORE@[20; 21) "_"
-          WHITESPACE@[21; 22) " "
-          EQ@[22; 23) "="
-          WHITESPACE@[23; 24) " "
-          LITERAL@[24; 30)
-            CHAR@[24; 30) "\'c\'u32"
-          SEMICOLON@[30; 31) ";"
-        WHITESPACE@[31; 36) "\n    "
-        LET_STMT@[36; 60)
-          LET_KW@[36; 39) "let"
-          WHITESPACE@[39; 40) " "
-          PLACEHOLDER_PAT@[40; 41)
-            UNDERSCORE@[40; 41) "_"
-          WHITESPACE@[41; 42) " "
-          EQ@[42; 43) "="
-          WHITESPACE@[43; 44) " "
-          LITERAL@[44; 59)
-            STRING@[44; 59) "\"string\"invalid"
-          SEMICOLON@[59; 60) ";"
-        WHITESPACE@[60; 65) "\n    "
-        LET_STMT@[65; 83)
-          LET_KW@[65; 68) "let"
-          WHITESPACE@[68; 69) " "
-          PLACEHOLDER_PAT@[69; 70)
-            UNDERSCORE@[69; 70) "_"
-          WHITESPACE@[70; 71) " "
-          EQ@[71; 72) "="
-          WHITESPACE@[72; 73) " "
-          LITERAL@[73; 82)
-            BYTE@[73; 82) "b\'b\'_suff"
-          SEMICOLON@[82; 83) ";"
-        WHITESPACE@[83; 88) "\n    "
-        LET_STMT@[88; 109)
-          LET_KW@[88; 91) "let"
-          WHITESPACE@[91; 92) " "
-          PLACEHOLDER_PAT@[92; 93)
-            UNDERSCORE@[92; 93) "_"
-          WHITESPACE@[93; 94) " "
-          EQ@[94; 95) "="
-          WHITESPACE@[95; 96) " "
-          LITERAL@[96; 108)
-            BYTE_STRING@[96; 108) "b\"bs\"invalid"
-          SEMICOLON@[108; 109) ";"
-        WHITESPACE@[109; 110) "\n"
-        R_CURLY@[110; 111) "}"
-  WHITESPACE@[111; 112) "\n"
+SOURCE_FILE@0..112
+  FN_DEF@0..111
+    FN_KW@0..2 "fn"
+    WHITESPACE@2..3 " "
+    NAME@3..7
+      IDENT@3..7 "main"
+    PARAM_LIST@7..9
+      L_PAREN@7..8 "("
+      R_PAREN@8..9 ")"
+    WHITESPACE@9..10 " "
+    BLOCK_EXPR@10..111
+      BLOCK@10..111
+        L_CURLY@10..11 "{"
+        WHITESPACE@11..16 "\n    "
+        LET_STMT@16..31
+          LET_KW@16..19 "let"
+          WHITESPACE@19..20 " "
+          PLACEHOLDER_PAT@20..21
+            UNDERSCORE@20..21 "_"
+          WHITESPACE@21..22 " "
+          EQ@22..23 "="
+          WHITESPACE@23..24 " "
+          LITERAL@24..30
+            CHAR@24..30 "\'c\'u32"
+          SEMICOLON@30..31 ";"
+        WHITESPACE@31..36 "\n    "
+        LET_STMT@36..60
+          LET_KW@36..39 "let"
+          WHITESPACE@39..40 " "
+          PLACEHOLDER_PAT@40..41
+            UNDERSCORE@40..41 "_"
+          WHITESPACE@41..42 " "
+          EQ@42..43 "="
+          WHITESPACE@43..44 " "
+          LITERAL@44..59
+            STRING@44..59 "\"string\"invalid"
+          SEMICOLON@59..60 ";"
+        WHITESPACE@60..65 "\n    "
+        LET_STMT@65..83
+          LET_KW@65..68 "let"
+          WHITESPACE@68..69 " "
+          PLACEHOLDER_PAT@69..70
+            UNDERSCORE@69..70 "_"
+          WHITESPACE@70..71 " "
+          EQ@71..72 "="
+          WHITESPACE@72..73 " "
+          LITERAL@73..82
+            BYTE@73..82 "b\'b\'_suff"
+          SEMICOLON@82..83 ";"
+        WHITESPACE@83..88 "\n    "
+        LET_STMT@88..109
+          LET_KW@88..91 "let"
+          WHITESPACE@91..92 " "
+          PLACEHOLDER_PAT@92..93
+            UNDERSCORE@92..93 "_"
+          WHITESPACE@93..94 " "
+          EQ@94..95 "="
+          WHITESPACE@95..96 " "
+          LITERAL@96..108
+            BYTE_STRING@96..108 "b\"bs\"invalid"
+          SEMICOLON@108..109 ";"
+        WHITESPACE@109..110 "\n"
+        R_CURLY@110..111 "}"
+  WHITESPACE@111..112 "\n"
diff --git a/crates/ra_syntax/test_data/parser/ok/0030_traits.rast b/crates/ra_syntax/test_data/parser/ok/0030_traits.rast
index 4131cd81a..0aadc11a4 100644
--- a/crates/ra_syntax/test_data/parser/ok/0030_traits.rast
+++ b/crates/ra_syntax/test_data/parser/ok/0030_traits.rast
@@ -1,61 +1,61 @@
-SOURCE_FILE@[0; 96)
-  TRAIT_DEF@[0; 36)
-    TRAIT_KW@[0; 5) "trait"
-    WHITESPACE@[5; 6) " "
-    NAME@[6; 14)
-      IDENT@[6; 14) "Runnable"
-    WHITESPACE@[14; 15) " "
-    ITEM_LIST@[15; 36)
-      L_CURLY@[15; 16) "{"
-      WHITESPACE@[16; 21) "\n    "
-      FN_DEF@[21; 34)
-        FN_KW@[21; 23) "fn"
-        WHITESPACE@[23; 24) " "
-        NAME@[24; 31)
-          IDENT@[24; 31) "handler"
-        PARAM_LIST@[31; 33)
-          L_PAREN@[31; 32) "("
-          R_PAREN@[32; 33) ")"
-        SEMICOLON@[33; 34) ";"
-      WHITESPACE@[34; 35) "\n"
-      R_CURLY@[35; 36) "}"
-  WHITESPACE@[36; 38) "\n\n"
-  TRAIT_DEF@[38; 95)
-    TRAIT_KW@[38; 43) "trait"
-    WHITESPACE@[43; 44) " "
-    NAME@[44; 57)
-      IDENT@[44; 57) "TraitWithExpr"
-    WHITESPACE@[57; 58) " "
-    ITEM_LIST@[58; 95)
-      L_CURLY@[58; 59) "{"
-      WHITESPACE@[59; 64) "\n    "
-      FN_DEF@[64; 93)
-        FN_KW@[64; 66) "fn"
-        WHITESPACE@[66; 67) " "
-        NAME@[67; 79)
-          IDENT@[67; 79) "fn_with_expr"
-        PARAM_LIST@[79; 92)
-          L_PAREN@[79; 80) "("
-          PARAM@[80; 91)
-            BIND_PAT@[80; 81)
-              NAME@[80; 81)
-                IDENT@[80; 81) "x"
-            COLON@[81; 82) ":"
-            WHITESPACE@[82; 83) " "
-            ARRAY_TYPE@[83; 91)
-              L_BRACK@[83; 84) "["
-              PATH_TYPE@[84; 87)
-                PATH@[84; 87)
-                  PATH_SEGMENT@[84; 87)
-                    NAME_REF@[84; 87)
-                      IDENT@[84; 87) "i32"
-              SEMICOLON@[87; 88) ";"
-              WHITESPACE@[88; 89) " "
-              LITERAL@[89; 90)
-                INT_NUMBER@[89; 90) "1"
-              R_BRACK@[90; 91) "]"
-          R_PAREN@[91; 92) ")"
-        SEMICOLON@[92; 93) ";"
-      WHITESPACE@[93; 94) "\n"
-      R_CURLY@[94; 95) "}"
-  WHITESPACE@[95; 96) "\n"
+SOURCE_FILE@0..96
+  TRAIT_DEF@0..36
+    TRAIT_KW@0..5 "trait"
+    WHITESPACE@5..6 " "
+    NAME@6..14
+      IDENT@6..14 "Runnable"
+    WHITESPACE@14..15 " "
+    ITEM_LIST@15..36
+      L_CURLY@15..16 "{"
+      WHITESPACE@16..21 "\n    "
+      FN_DEF@21..34
+        FN_KW@21..23 "fn"
+        WHITESPACE@23..24 " "
+        NAME@24..31
+          IDENT@24..31 "handler"
+        PARAM_LIST@31..33
+          L_PAREN@31..32 "("
+          R_PAREN@32..33 ")"
+        SEMICOLON@33..34 ";"
+      WHITESPACE@34..35 "\n"
+      R_CURLY@35..36 "}"
+  WHITESPACE@36..38 "\n\n"
+  TRAIT_DEF@38..95
+    TRAIT_KW@38..43 "trait"
+    WHITESPACE@43..44 " "
+    NAME@44..57
+      IDENT@44..57 "TraitWithExpr"
+    WHITESPACE@57..58 " "
+    ITEM_LIST@58..95
+      L_CURLY@58..59 "{"
+      WHITESPACE@59..64 "\n    "
+      FN_DEF@64..93
+        FN_KW@64..66 "fn"
+        WHITESPACE@66..67 " "
+        NAME@67..79
+          IDENT@67..79 "fn_with_expr"
+        PARAM_LIST@79..92
+          L_PAREN@79..80 "("
+          PARAM@80..91
+            BIND_PAT@80..81
+              NAME@80..81
+                IDENT@80..81 "x"
+            COLON@81..82 ":"
+            WHITESPACE@82..83 " "
+            ARRAY_TYPE@83..91
+              L_BRACK@83..84 "["
+              PATH_TYPE@84..87
+                PATH@84..87
+                  PATH_SEGMENT@84..87
+                    NAME_REF@84..87
+                      IDENT@84..87 "i32"
+              SEMICOLON@87..88 ";"
+              WHITESPACE@88..89 " "
+              LITERAL@89..90
+                INT_NUMBER@89..90 "1"
+              R_BRACK@90..91 "]"
+          R_PAREN@91..92 ")"
+        SEMICOLON@92..93 ";"
+      WHITESPACE@93..94 "\n"
+      R_CURLY@94..95 "}"
+  WHITESPACE@95..96 "\n"
diff --git a/crates/ra_syntax/test_data/parser/ok/0031_extern.rast b/crates/ra_syntax/test_data/parser/ok/0031_extern.rast
index 23757df52..ea285f52f 100644
--- a/crates/ra_syntax/test_data/parser/ok/0031_extern.rast
+++ b/crates/ra_syntax/test_data/parser/ok/0031_extern.rast
@@ -1,973 +1,973 @@
-SOURCE_FILE@[0; 1598)
-  EXTERN_BLOCK@[0; 1597)
-    ABI@[0; 6)
-      EXTERN_KW@[0; 6) "extern"
-    WHITESPACE@[6; 7) " "
-    EXTERN_ITEM_LIST@[7; 1597)
-      L_CURLY@[7; 8) "{"
-      WHITESPACE@[8; 13) "\n    "
-      FN_DEF@[13; 87)
-        VISIBILITY@[13; 16)
-          PUB_KW@[13; 16) "pub"
-        WHITESPACE@[16; 17) " "
-        FN_KW@[17; 19) "fn"
-        WHITESPACE@[19; 20) " "
-        NAME@[20; 26)
-          IDENT@[20; 26) "socket"
-        PARAM_LIST@[26; 75)
-          L_PAREN@[26; 27) "("
-          PARAM@[27; 42)
-            BIND_PAT@[27; 33)
-              NAME@[27; 33)
-                IDENT@[27; 33) "domain"
-            COLON@[33; 34) ":"
-            WHITESPACE@[34; 35) " "
-            PATH_TYPE@[35; 42)
-              PATH@[35; 42)
-                PATH_SEGMENT@[35; 42)
-                  COLON2@[35; 37) "::"
-                  NAME_REF@[37; 42)
-                    IDENT@[37; 42) "c_int"
-          COMMA@[42; 43) ","
-          WHITESPACE@[43; 44) " "
-          PARAM@[44; 55)
-            BIND_PAT@[44; 46)
-              NAME@[44; 46)
-                IDENT@[44; 46) "ty"
-            COLON@[46; 47) ":"
-            WHITESPACE@[47; 48) " "
-            PATH_TYPE@[48; 55)
-              PATH@[48; 55)
-                PATH_SEGMENT@[48; 55)
-                  COLON2@[48; 50) "::"
-                  NAME_REF@[50; 55)
-                    IDENT@[50; 55) "c_int"
-          COMMA@[55; 56) ","
-          WHITESPACE@[56; 57) " "
-          PARAM@[57; 74)
-            BIND_PAT@[57; 65)
-              NAME@[57; 65)
-                IDENT@[57; 65) "protocol"
-            COLON@[65; 66) ":"
-            WHITESPACE@[66; 67) " "
-            PATH_TYPE@[67; 74)
-              PATH@[67; 74)
-                PATH_SEGMENT@[67; 74)
-                  COLON2@[67; 69) "::"
-                  NAME_REF@[69; 74)
-                    IDENT@[69; 74) "c_int"
-          R_PAREN@[74; 75) ")"
-        WHITESPACE@[75; 76) " "
-        RET_TYPE@[76; 86)
-          THIN_ARROW@[76; 78) "->"
-          WHITESPACE@[78; 79) " "
-          PATH_TYPE@[79; 86)
-            PATH@[79; 86)
-              PATH_SEGMENT@[79; 86)
-                COLON2@[79; 81) "::"
-                NAME_REF@[81; 86)
-                  IDENT@[81; 86) "c_int"
-        SEMICOLON@[86; 87) ";"
-      WHITESPACE@[87; 92) "\n    "
-      FN_DEF@[92; 167)
-        VISIBILITY@[92; 95)
-          PUB_KW@[92; 95) "pub"
-        WHITESPACE@[95; 96) " "
-        FN_KW@[96; 98) "fn"
-        WHITESPACE@[98; 99) " "
-        NAME@[99; 103)
-          IDENT@[99; 103) "bind"
-        PARAM_LIST@[103; 155)
-          L_PAREN@[103; 104) "("
-          PARAM@[104; 115)
-            BIND_PAT@[104; 106)
-              NAME@[104; 106)
-                IDENT@[104; 106) "fd"
-            COLON@[106; 107) ":"
-            WHITESPACE@[107; 108) " "
-            PATH_TYPE@[108; 115)
-              PATH@[108; 115)
-                PATH_SEGMENT@[108; 115)
-                  COLON2@[108; 110) "::"
-                  NAME_REF@[110; 115)
-                    IDENT@[110; 115) "c_int"
-          COMMA@[115; 116) ","
-          WHITESPACE@[116; 117) " "
-          PARAM@[117; 138)
-            BIND_PAT@[117; 121)
-              NAME@[117; 121)
-                IDENT@[117; 121) "addr"
-            COLON@[121; 122) ":"
-            WHITESPACE@[122; 123) " "
-            POINTER_TYPE@[123; 138)
-              STAR@[123; 124) "*"
-              CONST_KW@[124; 129) "const"
-              WHITESPACE@[129; 130) " "
-              PATH_TYPE@[130; 138)
-                PATH@[130; 138)
-                  PATH_SEGMENT@[130; 138)
-                    NAME_REF@[130; 138)
-                      IDENT@[130; 138) "sockaddr"
-          COMMA@[138; 139) ","
-          WHITESPACE@[139; 140) " "
-          PARAM@[140; 154)
-            BIND_PAT@[140; 143)
-              NAME@[140; 143)
-                IDENT@[140; 143) "len"
-            COLON@[143; 144) ":"
-            WHITESPACE@[144; 145) " "
-            PATH_TYPE@[145; 154)
-              PATH@[145; 154)
-                PATH_SEGMENT@[145; 154)
-                  NAME_REF@[145; 154)
-                    IDENT@[145; 154) "socklen_t"
-          R_PAREN@[154; 155) ")"
-        WHITESPACE@[155; 156) " "
-        RET_TYPE@[156; 166)
-          THIN_ARROW@[156; 158) "->"
-          WHITESPACE@[158; 159) " "
-          PATH_TYPE@[159; 166)
-            PATH@[159; 166)
-              PATH_SEGMENT@[159; 166)
-                COLON2@[159; 161) "::"
-                NAME_REF@[161; 166)
-                  IDENT@[161; 166) "c_int"
-        SEMICOLON@[166; 167) ";"
-      WHITESPACE@[167; 172) "\n    "
-      FN_DEF@[172; 276)
-        VISIBILITY@[172; 175)
-          PUB_KW@[172; 175) "pub"
-        WHITESPACE@[175; 176) " "
-        FN_KW@[176; 178) "fn"
-        WHITESPACE@[178; 179) " "
-        NAME@[179; 186)
-          IDENT@[179; 186) "connect"
-        PARAM_LIST@[186; 264)
-          L_PAREN@[186; 187) "("
-          PARAM@[187; 202)
-            BIND_PAT@[187; 193)
-              NAME@[187; 193)
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-              PATH_TYPE@[220; 228)
-                PATH@[220; 228)
-                  PATH_SEGMENT@[220; 228)
-                    NAME_REF@[220; 228)
-                      IDENT@[220; 228) "sockaddr"
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-        SEMICOLON@[1172; 1173) ";"
-      WHITESPACE@[1173; 1178) "\n    "
-      FN_DEF@[1178; 1289)
-        VISIBILITY@[1178; 1181)
-          PUB_KW@[1178; 1181) "pub"
-        WHITESPACE@[1181; 1182) " "
-        FN_KW@[1182; 1184) "fn"
-        WHITESPACE@[1184; 1185) " "
-        NAME@[1185; 1189)
-          IDENT@[1185; 1189) "send"
-        PARAM_LIST@[1189; 1275)
-          L_PAREN@[1189; 1190) "("
-          PARAM@[1190; 1205)
-            BIND_PAT@[1190; 1196)
-              NAME@[1190; 1196)
-                IDENT@[1190; 1196) "socket"
-            COLON@[1196; 1197) ":"
-            WHITESPACE@[1197; 1198) " "
-            PATH_TYPE@[1198; 1205)
-              PATH@[1198; 1205)
-                PATH_SEGMENT@[1198; 1205)
-                  COLON2@[1198; 1200) "::"
-                  NAME_REF@[1200; 1205)
-                    IDENT@[1200; 1205) "c_int"
-          COMMA@[1205; 1206) ","
-          WHITESPACE@[1206; 1207) " "
-          PARAM@[1207; 1227)
-            BIND_PAT@[1207; 1210)
-              NAME@[1207; 1210)
-                IDENT@[1207; 1210) "buf"
-            COLON@[1210; 1211) ":"
-            WHITESPACE@[1211; 1212) " "
-            POINTER_TYPE@[1212; 1227)
-              STAR@[1212; 1213) "*"
-              CONST_KW@[1213; 1218) "const"
-              WHITESPACE@[1218; 1219) " "
-              PATH_TYPE@[1219; 1227)
-                PATH@[1219; 1227)
-                  PATH_SEGMENT@[1219; 1227)
-                    COLON2@[1219; 1221) "::"
-                    NAME_REF@[1221; 1227)
-                      IDENT@[1221; 1227) "c_void"
-          COMMA@[1227; 1228) ","
-          WHITESPACE@[1228; 1229) " "
-          PARAM@[1229; 1242)
-            BIND_PAT@[1229; 1232)
-              NAME@[1229; 1232)
-                IDENT@[1229; 1232) "len"
-            COLON@[1232; 1233) ":"
-            WHITESPACE@[1233; 1234) " "
-            PATH_TYPE@[1234; 1242)
-              PATH@[1234; 1242)
-                PATH_SEGMENT@[1234; 1242)
-                  COLON2@[1234; 1236) "::"
-                  NAME_REF@[1236; 1242)
-                    IDENT@[1236; 1242) "size_t"
-          COMMA@[1242; 1243) ","
-          WHITESPACE@[1243; 1260) "\n                "
-          PARAM@[1260; 1274)
-            BIND_PAT@[1260; 1265)
-              NAME@[1260; 1265)
-                IDENT@[1260; 1265) "flags"
-            COLON@[1265; 1266) ":"
-            WHITESPACE@[1266; 1267) " "
-            PATH_TYPE@[1267; 1274)
-              PATH@[1267; 1274)
-                PATH_SEGMENT@[1267; 1274)
-                  COLON2@[1267; 1269) "::"
-                  NAME_REF@[1269; 1274)
-                    IDENT@[1269; 1274) "c_int"
-          R_PAREN@[1274; 1275) ")"
-        WHITESPACE@[1275; 1276) " "
-        RET_TYPE@[1276; 1288)
-          THIN_ARROW@[1276; 1278) "->"
-          WHITESPACE@[1278; 1279) " "
-          PATH_TYPE@[1279; 1288)
-            PATH@[1279; 1288)
-              PATH_SEGMENT@[1279; 1288)
-                COLON2@[1279; 1281) "::"
-                NAME_REF@[1281; 1288)
-                  IDENT@[1281; 1288) "ssize_t"
-        SEMICOLON@[1288; 1289) ";"
-      WHITESPACE@[1289; 1294) "\n    "
-      FN_DEF@[1294; 1481)
-        VISIBILITY@[1294; 1297)
-          PUB_KW@[1294; 1297) "pub"
-        WHITESPACE@[1297; 1298) " "
-        FN_KW@[1298; 1300) "fn"
-        WHITESPACE@[1300; 1301) " "
-        NAME@[1301; 1309)
-          IDENT@[1301; 1309) "recvfrom"
-        PARAM_LIST@[1309; 1467)
-          L_PAREN@[1309; 1310) "("
-          PARAM@[1310; 1325)
-            BIND_PAT@[1310; 1316)
-              NAME@[1310; 1316)
-                IDENT@[1310; 1316) "socket"
-            COLON@[1316; 1317) ":"
-            WHITESPACE@[1317; 1318) " "
-            PATH_TYPE@[1318; 1325)
-              PATH@[1318; 1325)
-                PATH_SEGMENT@[1318; 1325)
-                  COLON2@[1318; 1320) "::"
-                  NAME_REF@[1320; 1325)
-                    IDENT@[1320; 1325) "c_int"
-          COMMA@[1325; 1326) ","
-          WHITESPACE@[1326; 1327) " "
-          PARAM@[1327; 1345)
-            BIND_PAT@[1327; 1330)
-              NAME@[1327; 1330)
-                IDENT@[1327; 1330) "buf"
-            COLON@[1330; 1331) ":"
-            WHITESPACE@[1331; 1332) " "
-            POINTER_TYPE@[1332; 1345)
-              STAR@[1332; 1333) "*"
-              MUT_KW@[1333; 1336) "mut"
-              WHITESPACE@[1336; 1337) " "
-              PATH_TYPE@[1337; 1345)
-                PATH@[1337; 1345)
-                  PATH_SEGMENT@[1337; 1345)
-                    COLON2@[1337; 1339) "::"
-                    NAME_REF@[1339; 1345)
-                      IDENT@[1339; 1345) "c_void"
-          COMMA@[1345; 1346) ","
-          WHITESPACE@[1346; 1347) " "
-          PARAM@[1347; 1360)
-            BIND_PAT@[1347; 1350)
-              NAME@[1347; 1350)
-                IDENT@[1347; 1350) "len"
-            COLON@[1350; 1351) ":"
-            WHITESPACE@[1351; 1352) " "
-            PATH_TYPE@[1352; 1360)
-              PATH@[1352; 1360)
-                PATH_SEGMENT@[1352; 1360)
-                  COLON2@[1352; 1354) "::"
-                  NAME_REF@[1354; 1360)
-                    IDENT@[1354; 1360) "size_t"
-          COMMA@[1360; 1361) ","
-          WHITESPACE@[1361; 1382) "\n                    "
-          PARAM@[1382; 1396)
-            BIND_PAT@[1382; 1387)
-              NAME@[1382; 1387)
-                IDENT@[1382; 1387) "flags"
-            COLON@[1387; 1388) ":"
-            WHITESPACE@[1388; 1389) " "
-            PATH_TYPE@[1389; 1396)
-              PATH@[1389; 1396)
-                PATH_SEGMENT@[1389; 1396)
-                  COLON2@[1389; 1391) "::"
-                  NAME_REF@[1391; 1396)
-                    IDENT@[1391; 1396) "c_int"
-          COMMA@[1396; 1397) ","
-          WHITESPACE@[1397; 1398) " "
-          PARAM@[1398; 1419)
-            BIND_PAT@[1398; 1402)
-              NAME@[1398; 1402)
-                IDENT@[1398; 1402) "addr"
-            COLON@[1402; 1403) ":"
-            WHITESPACE@[1403; 1404) " "
-            POINTER_TYPE@[1404; 1419)
-              STAR@[1404; 1405) "*"
-              MUT_KW@[1405; 1408) "mut"
-              WHITESPACE@[1408; 1409) " "
-              PATH_TYPE@[1409; 1419)
-                PATH@[1409; 1419)
-                  PATH_SEGMENT@[1409; 1419)
-                    COLON2@[1409; 1411) "::"
-                    NAME_REF@[1411; 1419)
-                      IDENT@[1411; 1419) "sockaddr"
-          COMMA@[1419; 1420) ","
-          WHITESPACE@[1420; 1441) "\n                    "
-          PARAM@[1441; 1466)
-            BIND_PAT@[1441; 1448)
-              NAME@[1441; 1448)
-                IDENT@[1441; 1448) "addrlen"
-            COLON@[1448; 1449) ":"
-            WHITESPACE@[1449; 1450) " "
-            POINTER_TYPE@[1450; 1466)
-              STAR@[1450; 1451) "*"
-              MUT_KW@[1451; 1454) "mut"
-              WHITESPACE@[1454; 1455) " "
-              PATH_TYPE@[1455; 1466)
-                PATH@[1455; 1466)
-                  PATH_SEGMENT@[1455; 1466)
-                    COLON2@[1455; 1457) "::"
-                    NAME_REF@[1457; 1466)
-                      IDENT@[1457; 1466) "socklen_t"
-          R_PAREN@[1466; 1467) ")"
-        WHITESPACE@[1467; 1468) " "
-        RET_TYPE@[1468; 1480)
-          THIN_ARROW@[1468; 1470) "->"
-          WHITESPACE@[1470; 1471) " "
-          PATH_TYPE@[1471; 1480)
-            PATH@[1471; 1480)
-              PATH_SEGMENT@[1471; 1480)
-                COLON2@[1471; 1473) "::"
-                NAME_REF@[1473; 1480)
-                  IDENT@[1473; 1480) "ssize_t"
-        SEMICOLON@[1480; 1481) ";"
-      WHITESPACE@[1481; 1486) "\n    "
-      FN_DEF@[1486; 1595)
-        VISIBILITY@[1486; 1489)
-          PUB_KW@[1486; 1489) "pub"
-        WHITESPACE@[1489; 1490) " "
-        FN_KW@[1490; 1492) "fn"
-        WHITESPACE@[1492; 1493) " "
-        NAME@[1493; 1497)
-          IDENT@[1493; 1497) "recv"
-        PARAM_LIST@[1497; 1581)
-          L_PAREN@[1497; 1498) "("
-          PARAM@[1498; 1513)
-            BIND_PAT@[1498; 1504)
-              NAME@[1498; 1504)
-                IDENT@[1498; 1504) "socket"
-            COLON@[1504; 1505) ":"
-            WHITESPACE@[1505; 1506) " "
-            PATH_TYPE@[1506; 1513)
-              PATH@[1506; 1513)
-                PATH_SEGMENT@[1506; 1513)
-                  COLON2@[1506; 1508) "::"
-                  NAME_REF@[1508; 1513)
-                    IDENT@[1508; 1513) "c_int"
-          COMMA@[1513; 1514) ","
-          WHITESPACE@[1514; 1515) " "
-          PARAM@[1515; 1533)
-            BIND_PAT@[1515; 1518)
-              NAME@[1515; 1518)
-                IDENT@[1515; 1518) "buf"
-            COLON@[1518; 1519) ":"
-            WHITESPACE@[1519; 1520) " "
-            POINTER_TYPE@[1520; 1533)
-              STAR@[1520; 1521) "*"
-              MUT_KW@[1521; 1524) "mut"
-              WHITESPACE@[1524; 1525) " "
-              PATH_TYPE@[1525; 1533)
-                PATH@[1525; 1533)
-                  PATH_SEGMENT@[1525; 1533)
-                    COLON2@[1525; 1527) "::"
-                    NAME_REF@[1527; 1533)
-                      IDENT@[1527; 1533) "c_void"
-          COMMA@[1533; 1534) ","
-          WHITESPACE@[1534; 1535) " "
-          PARAM@[1535; 1548)
-            BIND_PAT@[1535; 1538)
-              NAME@[1535; 1538)
-                IDENT@[1535; 1538) "len"
-            COLON@[1538; 1539) ":"
-            WHITESPACE@[1539; 1540) " "
-            PATH_TYPE@[1540; 1548)
-              PATH@[1540; 1548)
-                PATH_SEGMENT@[1540; 1548)
-                  COLON2@[1540; 1542) "::"
-                  NAME_REF@[1542; 1548)
-                    IDENT@[1542; 1548) "size_t"
-          COMMA@[1548; 1549) ","
-          WHITESPACE@[1549; 1566) "\n                "
-          PARAM@[1566; 1580)
-            BIND_PAT@[1566; 1571)
-              NAME@[1566; 1571)
-                IDENT@[1566; 1571) "flags"
-            COLON@[1571; 1572) ":"
-            WHITESPACE@[1572; 1573) " "
-            PATH_TYPE@[1573; 1580)
-              PATH@[1573; 1580)
-                PATH_SEGMENT@[1573; 1580)
-                  COLON2@[1573; 1575) "::"
-                  NAME_REF@[1575; 1580)
-                    IDENT@[1575; 1580) "c_int"
-          R_PAREN@[1580; 1581) ")"
-        WHITESPACE@[1581; 1582) " "
-        RET_TYPE@[1582; 1594)
-          THIN_ARROW@[1582; 1584) "->"
-          WHITESPACE@[1584; 1585) " "
-          PATH_TYPE@[1585; 1594)
-            PATH@[1585; 1594)
-              PATH_SEGMENT@[1585; 1594)
-                COLON2@[1585; 1587) "::"
-                NAME_REF@[1587; 1594)
-                  IDENT@[1587; 1594) "ssize_t"
-        SEMICOLON@[1594; 1595) ";"
-      WHITESPACE@[1595; 1596) "\n"
-      R_CURLY@[1596; 1597) "}"
-  WHITESPACE@[1597; 1598) "\n"
+SOURCE_FILE@0..1598
+  EXTERN_BLOCK@0..1597
+    ABI@0..6
+      EXTERN_KW@0..6 "extern"
+    WHITESPACE@6..7 " "
+    EXTERN_ITEM_LIST@7..1597
+      L_CURLY@7..8 "{"
+      WHITESPACE@8..13 "\n    "
+      FN_DEF@13..87
+        VISIBILITY@13..16
+          PUB_KW@13..16 "pub"
+        WHITESPACE@16..17 " "
+        FN_KW@17..19 "fn"
+        WHITESPACE@19..20 " "
+        NAME@20..26
+          IDENT@20..26 "socket"
+        PARAM_LIST@26..75
+          L_PAREN@26..27 "("
+          PARAM@27..42
+            BIND_PAT@27..33
+              NAME@27..33
+                IDENT@27..33 "domain"
+            COLON@33..34 ":"
+            WHITESPACE@34..35 " "
+            PATH_TYPE@35..42
+              PATH@35..42
+                PATH_SEGMENT@35..42
+                  COLON2@35..37 "::"
+                  NAME_REF@37..42
+                    IDENT@37..42 "c_int"
+          COMMA@42..43 ","
+          WHITESPACE@43..44 " "
+          PARAM@44..55
+            BIND_PAT@44..46
+              NAME@44..46
+                IDENT@44..46 "ty"
+            COLON@46..47 ":"
+            WHITESPACE@47..48 " "
+            PATH_TYPE@48..55
+              PATH@48..55
+                PATH_SEGMENT@48..55
+                  COLON2@48..50 "::"
+                  NAME_REF@50..55
+                    IDENT@50..55 "c_int"
+          COMMA@55..56 ","
+          WHITESPACE@56..57 " "
+          PARAM@57..74
+            BIND_PAT@57..65
+              NAME@57..65
+                IDENT@57..65 "protocol"
+            COLON@65..66 ":"
+            WHITESPACE@66..67 " "
+            PATH_TYPE@67..74
+              PATH@67..74
+                PATH_SEGMENT@67..74
+                  COLON2@67..69 "::"
+                  NAME_REF@69..74
+                    IDENT@69..74 "c_int"
+          R_PAREN@74..75 ")"
+        WHITESPACE@75..76 " "
+        RET_TYPE@76..86
+          THIN_ARROW@76..78 "->"
+          WHITESPACE@78..79 " "
+          PATH_TYPE@79..86
+            PATH@79..86
+              PATH_SEGMENT@79..86
+                COLON2@79..81 "::"
+                NAME_REF@81..86
+                  IDENT@81..86 "c_int"
+        SEMICOLON@86..87 ";"
+      WHITESPACE@87..92 "\n    "
+      FN_DEF@92..167
+        VISIBILITY@92..95
+          PUB_KW@92..95 "pub"
+        WHITESPACE@95..96 " "
+        FN_KW@96..98 "fn"
+        WHITESPACE@98..99 " "
+        NAME@99..103
+          IDENT@99..103 "bind"
+        PARAM_LIST@103..155
+          L_PAREN@103..104 "("
+          PARAM@104..115
+            BIND_PAT@104..106
+              NAME@104..106
+                IDENT@104..106 "fd"
+            COLON@106..107 ":"
+            WHITESPACE@107..108 " "
+            PATH_TYPE@108..115
+              PATH@108..115
+                PATH_SEGMENT@108..115
+                  COLON2@108..110 "::"
+                  NAME_REF@110..115
+                    IDENT@110..115 "c_int"
+          COMMA@115..116 ","
+          WHITESPACE@116..117 " "
+          PARAM@117..138
+            BIND_PAT@117..121
+              NAME@117..121
+                IDENT@117..121 "addr"
+            COLON@121..122 ":"
+            WHITESPACE@122..123 " "
+            POINTER_TYPE@123..138
+              STAR@123..124 "*"
+              CONST_KW@124..129 "const"
+              WHITESPACE@129..130 " "
+              PATH_TYPE@130..138
+                PATH@130..138
+                  PATH_SEGMENT@130..138
+                    NAME_REF@130..138
+                      IDENT@130..138 "sockaddr"
+          COMMA@138..139 ","
+          WHITESPACE@139..140 " "
+          PARAM@140..154
+            BIND_PAT@140..143
+              NAME@140..143
+                IDENT@140..143 "len"
+            COLON@143..144 ":"
+            WHITESPACE@144..145 " "
+            PATH_TYPE@145..154
+              PATH@145..154
+                PATH_SEGMENT@145..154
+                  NAME_REF@145..154
+                    IDENT@145..154 "socklen_t"
+          R_PAREN@154..155 ")"
+        WHITESPACE@155..156 " "
+        RET_TYPE@156..166
+          THIN_ARROW@156..158 "->"
+          WHITESPACE@158..159 " "
+          PATH_TYPE@159..166
+            PATH@159..166
+              PATH_SEGMENT@159..166
+                COLON2@159..161 "::"
+                NAME_REF@161..166
+                  IDENT@161..166 "c_int"
+        SEMICOLON@166..167 ";"
+      WHITESPACE@167..172 "\n    "
+      FN_DEF@172..276
+        VISIBILITY@172..175
+          PUB_KW@172..175 "pub"
+        WHITESPACE@175..176 " "
+        FN_KW@176..178 "fn"
+        WHITESPACE@178..179 " "
+        NAME@179..186
+          IDENT@179..186 "connect"
+        PARAM_LIST@186..264
+          L_PAREN@186..187 "("
+          PARAM@187..202
+            BIND_PAT@187..193
+              NAME@187..193
+                IDENT@187..193 "socket"
+            COLON@193..194 ":"
+            WHITESPACE@194..195 " "
+            PATH_TYPE@195..202
+              PATH@195..202
+                PATH_SEGMENT@195..202
+                  COLON2@195..197 "::"
+                  NAME_REF@197..202
+                    IDENT@197..202 "c_int"
+          COMMA@202..203 ","
+          WHITESPACE@203..204 " "
+          PARAM@204..228
+            BIND_PAT@204..211
+              NAME@204..211
+                IDENT@204..211 "address"
+            COLON@211..212 ":"
+            WHITESPACE@212..213 " "
+            POINTER_TYPE@213..228
+              STAR@213..214 "*"
+              CONST_KW@214..219 "const"
+              WHITESPACE@219..220 " "
+              PATH_TYPE@220..228
+                PATH@220..228
+                  PATH_SEGMENT@220..228
+                    NAME_REF@220..228
+                      IDENT@220..228 "sockaddr"
+          COMMA@228..229 ","
+          WHITESPACE@229..249 "\n                   "
+          PARAM@249..263
+            BIND_PAT@249..252
+              NAME@249..252
+                IDENT@249..252 "len"
+            COLON@252..253 ":"
+            WHITESPACE@253..254 " "
+            PATH_TYPE@254..263
+              PATH@254..263
+                PATH_SEGMENT@254..263
+                  NAME_REF@254..263
+                    IDENT@254..263 "socklen_t"
+          R_PAREN@263..264 ")"
+        WHITESPACE@264..265 " "
+        RET_TYPE@265..275
+          THIN_ARROW@265..267 "->"
+          WHITESPACE@267..268 " "
+          PATH_TYPE@268..275
+            PATH@268..275
+              PATH_SEGMENT@268..275
+                COLON2@268..270 "::"
+                NAME_REF@270..275
+                  IDENT@270..275 "c_int"
+        SEMICOLON@275..276 ";"
+      WHITESPACE@276..281 "\n    "
+      FN_DEF@281..341
+        VISIBILITY@281..284
+          PUB_KW@281..284 "pub"
+        WHITESPACE@284..285 " "
+        FN_KW@285..287 "fn"
+        WHITESPACE@287..288 " "
+        NAME@288..294
+          IDENT@288..294 "listen"
+        PARAM_LIST@294..329
+          L_PAREN@294..295 "("
+          PARAM@295..310
+            BIND_PAT@295..301
+              NAME@295..301
+                IDENT@295..301 "socket"
+            COLON@301..302 ":"
+            WHITESPACE@302..303 " "
+            PATH_TYPE@303..310
+              PATH@303..310
+                PATH_SEGMENT@303..310
+                  COLON2@303..305 "::"
+                  NAME_REF@305..310
+                    IDENT@305..310 "c_int"
+          COMMA@310..311 ","
+          WHITESPACE@311..312 " "
+          PARAM@312..328
+            BIND_PAT@312..319
+              NAME@312..319
+                IDENT@312..319 "backlog"
+            COLON@319..320 ":"
+            WHITESPACE@320..321 " "
+            PATH_TYPE@321..328
+              PATH@321..328
+                PATH_SEGMENT@321..328
+                  COLON2@321..323 "::"
+                  NAME_REF@323..328
+                    IDENT@323..328 "c_int"
+          R_PAREN@328..329 ")"
+        WHITESPACE@329..330 " "
+        RET_TYPE@330..340
+          THIN_ARROW@330..332 "->"
+          WHITESPACE@332..333 " "
+          PATH_TYPE@333..340
+            PATH@333..340
+              PATH_SEGMENT@333..340
+                COLON2@333..335 "::"
+                NAME_REF@335..340
+                  IDENT@335..340 "c_int"
+        SEMICOLON@340..341 ";"
+      WHITESPACE@341..346 "\n    "
+      FN_DEF@346..469
+        VISIBILITY@346..349
+          PUB_KW@346..349 "pub"
+        WHITESPACE@349..350 " "
+        FN_KW@350..352 "fn"
+        WHITESPACE@352..353 " "
+        NAME@353..364
+          IDENT@353..364 "getsockname"
+        PARAM_LIST@364..457
+          L_PAREN@364..365 "("
+          PARAM@365..380
+            BIND_PAT@365..371
+              NAME@365..371
+                IDENT@365..371 "socket"
+            COLON@371..372 ":"
+            WHITESPACE@372..373 " "
+            PATH_TYPE@373..380
+              PATH@373..380
+                PATH_SEGMENT@373..380
+                  COLON2@373..375 "::"
+                  NAME_REF@375..380
+                    IDENT@375..380 "c_int"
+          COMMA@380..381 ","
+          WHITESPACE@381..382 " "
+          PARAM@382..404
+            BIND_PAT@382..389
+              NAME@382..389
+                IDENT@382..389 "address"
+            COLON@389..390 ":"
+            WHITESPACE@390..391 " "
+            POINTER_TYPE@391..404
+              STAR@391..392 "*"
+              MUT_KW@392..395 "mut"
+              WHITESPACE@395..396 " "
+              PATH_TYPE@396..404
+                PATH@396..404
+                  PATH_SEGMENT@396..404
+                    NAME_REF@396..404
+                      IDENT@396..404 "sockaddr"
+          COMMA@404..405 ","
+          WHITESPACE@405..429 "\n                       "
+          PARAM@429..456
+            BIND_PAT@429..440
+              NAME@429..440
+                IDENT@429..440 "address_len"
+            COLON@440..441 ":"
+            WHITESPACE@441..442 " "
+            POINTER_TYPE@442..456
+              STAR@442..443 "*"
+              MUT_KW@443..446 "mut"
+              WHITESPACE@446..447 " "
+              PATH_TYPE@447..456
+                PATH@447..456
+                  PATH_SEGMENT@447..456
+                    NAME_REF@447..456
+                      IDENT@447..456 "socklen_t"
+          R_PAREN@456..457 ")"
+        WHITESPACE@457..458 " "
+        RET_TYPE@458..468
+          THIN_ARROW@458..460 "->"
+          WHITESPACE@460..461 " "
+          PATH_TYPE@461..468
+            PATH@461..468
+              PATH_SEGMENT@461..468
+                COLON2@461..463 "::"
+                NAME_REF@463..468
+                  IDENT@463..468 "c_int"
+        SEMICOLON@468..469 ";"
+      WHITESPACE@469..474 "\n    "
+      FN_DEF@474..691
+        VISIBILITY@474..477
+          PUB_KW@474..477 "pub"
+        WHITESPACE@477..478 " "
+        FN_KW@478..480 "fn"
+        WHITESPACE@480..481 " "
+        NAME@481..491
+          IDENT@481..491 "getsockopt"
+        PARAM_LIST@491..679
+          L_PAREN@491..492 "("
+          PARAM@492..507
+            BIND_PAT@492..498
+              NAME@492..498
+                IDENT@492..498 "sockfd"
+            COLON@498..499 ":"
+            WHITESPACE@499..500 " "
+            PATH_TYPE@500..507
+              PATH@500..507
+                PATH_SEGMENT@500..507
+                  COLON2@500..502 "::"
+                  NAME_REF@502..507
+                    IDENT@502..507 "c_int"
+          COMMA@507..508 ","
+          WHITESPACE@508..531 "\n                      "
+          PARAM@531..545
+            BIND_PAT@531..536
+              NAME@531..536
+                IDENT@531..536 "level"
+            COLON@536..537 ":"
+            WHITESPACE@537..538 " "
+            PATH_TYPE@538..545
+              PATH@538..545
+                PATH_SEGMENT@538..545
+                  COLON2@538..540 "::"
+                  NAME_REF@540..545
+                    IDENT@540..545 "c_int"
+          COMMA@545..546 ","
+          WHITESPACE@546..569 "\n                      "
+          PARAM@569..585
+            BIND_PAT@569..576
+              NAME@569..576
+                IDENT@569..576 "optname"
+            COLON@576..577 ":"
+            WHITESPACE@577..578 " "
+            PATH_TYPE@578..585
+              PATH@578..585
+                PATH_SEGMENT@578..585
+                  COLON2@578..580 "::"
+                  NAME_REF@580..585
+                    IDENT@580..585 "c_int"
+          COMMA@585..586 ","
+          WHITESPACE@586..609 "\n                      "
+          PARAM@609..630
+            BIND_PAT@609..615
+              NAME@609..615
+                IDENT@609..615 "optval"
+            COLON@615..616 ":"
+            WHITESPACE@616..617 " "
+            POINTER_TYPE@617..630
+              STAR@617..618 "*"
+              MUT_KW@618..621 "mut"
+              WHITESPACE@621..622 " "
+              PATH_TYPE@622..630
+                PATH@622..630
+                  PATH_SEGMENT@622..630
+                    COLON2@622..624 "::"
+                    NAME_REF@624..630
+                      IDENT@624..630 "c_void"
+          COMMA@630..631 ","
+          WHITESPACE@631..654 "\n                      "
+          PARAM@654..678
+            BIND_PAT@654..660
+              NAME@654..660
+                IDENT@654..660 "optlen"
+            COLON@660..661 ":"
+            WHITESPACE@661..662 " "
+            POINTER_TYPE@662..678
+              STAR@662..663 "*"
+              MUT_KW@663..666 "mut"
+              WHITESPACE@666..667 " "
+              PATH_TYPE@667..678
+                PATH@667..678
+                  PATH_SEGMENT@667..678
+                    COLON2@667..669 "::"
+                    NAME_REF@669..678
+                      IDENT@669..678 "socklen_t"
+          R_PAREN@678..679 ")"
+        WHITESPACE@679..680 " "
+        RET_TYPE@680..690
+          THIN_ARROW@680..682 "->"
+          WHITESPACE@682..683 " "
+          PATH_TYPE@683..690
+            PATH@683..690
+              PATH_SEGMENT@683..690
+                COLON2@683..685 "::"
+                NAME_REF@685..690
+                  IDENT@685..690 "c_int"
+        SEMICOLON@690..691 ";"
+      WHITESPACE@691..696 "\n    "
+      FN_DEF@696..864
+        VISIBILITY@696..699
+          PUB_KW@696..699 "pub"
+        WHITESPACE@699..700 " "
+        FN_KW@700..702 "fn"
+        WHITESPACE@702..703 " "
+        NAME@703..713
+          IDENT@703..713 "setsockopt"
+        PARAM_LIST@713..852
+          L_PAREN@713..714 "("
+          PARAM@714..729
+            BIND_PAT@714..720
+              NAME@714..720
+                IDENT@714..720 "socket"
+            COLON@720..721 ":"
+            WHITESPACE@721..722 " "
+            PATH_TYPE@722..729
+              PATH@722..729
+                PATH_SEGMENT@722..729
+                  COLON2@722..724 "::"
+                  NAME_REF@724..729
+                    IDENT@724..729 "c_int"
+          COMMA@729..730 ","
+          WHITESPACE@730..731 " "
+          PARAM@731..745
+            BIND_PAT@731..736
+              NAME@731..736
+                IDENT@731..736 "level"
+            COLON@736..737 ":"
+            WHITESPACE@737..738 " "
+            PATH_TYPE@738..745
+              PATH@738..745
+                PATH_SEGMENT@738..745
+                  COLON2@738..740 "::"
+                  NAME_REF@740..745
+                    IDENT@740..745 "c_int"
+          COMMA@745..746 ","
+          WHITESPACE@746..747 " "
+          PARAM@747..760
+            BIND_PAT@747..751
+              NAME@747..751
+                IDENT@747..751 "name"
+            COLON@751..752 ":"
+            WHITESPACE@752..753 " "
+            PATH_TYPE@753..760
+              PATH@753..760
+                PATH_SEGMENT@753..760
+                  COLON2@753..755 "::"
+                  NAME_REF@755..760
+                    IDENT@755..760 "c_int"
+          COMMA@760..761 ","
+          WHITESPACE@761..784 "\n                      "
+          PARAM@784..806
+            BIND_PAT@784..789
+              NAME@784..789
+                IDENT@784..789 "value"
+            COLON@789..790 ":"
+            WHITESPACE@790..791 " "
+            POINTER_TYPE@791..806
+              STAR@791..792 "*"
+              CONST_KW@792..797 "const"
+              WHITESPACE@797..798 " "
+              PATH_TYPE@798..806
+                PATH@798..806
+                  PATH_SEGMENT@798..806
+                    COLON2@798..800 "::"
+                    NAME_REF@800..806
+                      IDENT@800..806 "c_void"
+          COMMA@806..807 ","
+          WHITESPACE@807..830 "\n                      "
+          PARAM@830..851
+            BIND_PAT@830..840
+              NAME@830..840
+                IDENT@830..840 "option_len"
+            COLON@840..841 ":"
+            WHITESPACE@841..842 " "
+            PATH_TYPE@842..851
+              PATH@842..851
+                PATH_SEGMENT@842..851
+                  NAME_REF@842..851
+                    IDENT@842..851 "socklen_t"
+          R_PAREN@851..852 ")"
+        WHITESPACE@852..853 " "
+        RET_TYPE@853..863
+          THIN_ARROW@853..855 "->"
+          WHITESPACE@855..856 " "
+          PATH_TYPE@856..863
+            PATH@856..863
+              PATH_SEGMENT@856..863
+                COLON2@856..858 "::"
+                NAME_REF@858..863
+                  IDENT@858..863 "c_int"
+        SEMICOLON@863..864 ";"
+      WHITESPACE@864..869 "\n    "
+      FN_DEF@869..992
+        VISIBILITY@869..872
+          PUB_KW@869..872 "pub"
+        WHITESPACE@872..873 " "
+        FN_KW@873..875 "fn"
+        WHITESPACE@875..876 " "
+        NAME@876..887
+          IDENT@876..887 "getpeername"
+        PARAM_LIST@887..980
+          L_PAREN@887..888 "("
+          PARAM@888..903
+            BIND_PAT@888..894
+              NAME@888..894
+                IDENT@888..894 "socket"
+            COLON@894..895 ":"
+            WHITESPACE@895..896 " "
+            PATH_TYPE@896..903
+              PATH@896..903
+                PATH_SEGMENT@896..903
+                  COLON2@896..898 "::"
+                  NAME_REF@898..903
+                    IDENT@898..903 "c_int"
+          COMMA@903..904 ","
+          WHITESPACE@904..905 " "
+          PARAM@905..927
+            BIND_PAT@905..912
+              NAME@905..912
+                IDENT@905..912 "address"
+            COLON@912..913 ":"
+            WHITESPACE@913..914 " "
+            POINTER_TYPE@914..927
+              STAR@914..915 "*"
+              MUT_KW@915..918 "mut"
+              WHITESPACE@918..919 " "
+              PATH_TYPE@919..927
+                PATH@919..927
+                  PATH_SEGMENT@919..927
+                    NAME_REF@919..927
+                      IDENT@919..927 "sockaddr"
+          COMMA@927..928 ","
+          WHITESPACE@928..952 "\n                       "
+          PARAM@952..979
+            BIND_PAT@952..963
+              NAME@952..963
+                IDENT@952..963 "address_len"
+            COLON@963..964 ":"
+            WHITESPACE@964..965 " "
+            POINTER_TYPE@965..979
+              STAR@965..966 "*"
+              MUT_KW@966..969 "mut"
+              WHITESPACE@969..970 " "
+              PATH_TYPE@970..979
+                PATH@970..979
+                  PATH_SEGMENT@970..979
+                    NAME_REF@970..979
+                      IDENT@970..979 "socklen_t"
+          R_PAREN@979..980 ")"
+        WHITESPACE@980..981 " "
+        RET_TYPE@981..991
+          THIN_ARROW@981..983 "->"
+          WHITESPACE@983..984 " "
+          PATH_TYPE@984..991
+            PATH@984..991
+              PATH_SEGMENT@984..991
+                COLON2@984..986 "::"
+                NAME_REF@986..991
+                  IDENT@986..991 "c_int"
+        SEMICOLON@991..992 ";"
+      WHITESPACE@992..997 "\n    "
+      FN_DEF@997..1173
+        VISIBILITY@997..1000
+          PUB_KW@997..1000 "pub"
+        WHITESPACE@1000..1001 " "
+        FN_KW@1001..1003 "fn"
+        WHITESPACE@1003..1004 " "
+        NAME@1004..1010
+          IDENT@1004..1010 "sendto"
+        PARAM_LIST@1010..1159
+          L_PAREN@1010..1011 "("
+          PARAM@1011..1026
+            BIND_PAT@1011..1017
+              NAME@1011..1017
+                IDENT@1011..1017 "socket"
+            COLON@1017..1018 ":"
+            WHITESPACE@1018..1019 " "
+            PATH_TYPE@1019..1026
+              PATH@1019..1026
+                PATH_SEGMENT@1019..1026
+                  COLON2@1019..1021 "::"
+                  NAME_REF@1021..1026
+                    IDENT@1021..1026 "c_int"
+          COMMA@1026..1027 ","
+          WHITESPACE@1027..1028 " "
+          PARAM@1028..1048
+            BIND_PAT@1028..1031
+              NAME@1028..1031
+                IDENT@1028..1031 "buf"
+            COLON@1031..1032 ":"
+            WHITESPACE@1032..1033 " "
+            POINTER_TYPE@1033..1048
+              STAR@1033..1034 "*"
+              CONST_KW@1034..1039 "const"
+              WHITESPACE@1039..1040 " "
+              PATH_TYPE@1040..1048
+                PATH@1040..1048
+                  PATH_SEGMENT@1040..1048
+                    COLON2@1040..1042 "::"
+                    NAME_REF@1042..1048
+                      IDENT@1042..1048 "c_void"
+          COMMA@1048..1049 ","
+          WHITESPACE@1049..1050 " "
+          PARAM@1050..1063
+            BIND_PAT@1050..1053
+              NAME@1050..1053
+                IDENT@1050..1053 "len"
+            COLON@1053..1054 ":"
+            WHITESPACE@1054..1055 " "
+            PATH_TYPE@1055..1063
+              PATH@1055..1063
+                PATH_SEGMENT@1055..1063
+                  COLON2@1055..1057 "::"
+                  NAME_REF@1057..1063
+                    IDENT@1057..1063 "size_t"
+          COMMA@1063..1064 ","
+          WHITESPACE@1064..1083 "\n                  "
+          PARAM@1083..1097
+            BIND_PAT@1083..1088
+              NAME@1083..1088
+                IDENT@1083..1088 "flags"
+            COLON@1088..1089 ":"
+            WHITESPACE@1089..1090 " "
+            PATH_TYPE@1090..1097
+              PATH@1090..1097
+                PATH_SEGMENT@1090..1097
+                  COLON2@1090..1092 "::"
+                  NAME_REF@1092..1097
+                    IDENT@1092..1097 "c_int"
+          COMMA@1097..1098 ","
+          WHITESPACE@1098..1099 " "
+          PARAM@1099..1120
+            BIND_PAT@1099..1103
+              NAME@1099..1103
+                IDENT@1099..1103 "addr"
+            COLON@1103..1104 ":"
+            WHITESPACE@1104..1105 " "
+            POINTER_TYPE@1105..1120
+              STAR@1105..1106 "*"
+              CONST_KW@1106..1111 "const"
+              WHITESPACE@1111..1112 " "
+              PATH_TYPE@1112..1120
+                PATH@1112..1120
+                  PATH_SEGMENT@1112..1120
+                    NAME_REF@1112..1120
+                      IDENT@1112..1120 "sockaddr"
+          COMMA@1120..1121 ","
+          WHITESPACE@1121..1140 "\n                  "
+          PARAM@1140..1158
+            BIND_PAT@1140..1147
+              NAME@1140..1147
+                IDENT@1140..1147 "addrlen"
+            COLON@1147..1148 ":"
+            WHITESPACE@1148..1149 " "
+            PATH_TYPE@1149..1158
+              PATH@1149..1158
+                PATH_SEGMENT@1149..1158
+                  NAME_REF@1149..1158
+                    IDENT@1149..1158 "socklen_t"
+          R_PAREN@1158..1159 ")"
+        WHITESPACE@1159..1160 " "
+        RET_TYPE@1160..1172
+          THIN_ARROW@1160..1162 "->"
+          WHITESPACE@1162..1163 " "
+          PATH_TYPE@1163..1172
+            PATH@1163..1172
+              PATH_SEGMENT@1163..1172
+                COLON2@1163..1165 "::"
+                NAME_REF@1165..1172
+                  IDENT@1165..1172 "ssize_t"
+        SEMICOLON@1172..1173 ";"
+      WHITESPACE@1173..1178 "\n    "
+      FN_DEF@1178..1289
+        VISIBILITY@1178..1181
+          PUB_KW@1178..1181 "pub"
+        WHITESPACE@1181..1182 " "
+        FN_KW@1182..1184 "fn"
+        WHITESPACE@1184..1185 " "
+        NAME@1185..1189
+          IDENT@1185..1189 "send"
+        PARAM_LIST@1189..1275
+          L_PAREN@1189..1190 "("
+          PARAM@1190..1205
+            BIND_PAT@1190..1196
+              NAME@1190..1196
+                IDENT@1190..1196 "socket"
+            COLON@1196..1197 ":"
+            WHITESPACE@1197..1198 " "
+            PATH_TYPE@1198..1205
+              PATH@1198..1205
+                PATH_SEGMENT@1198..1205
+                  COLON2@1198..1200 "::"
+                  NAME_REF@1200..1205
+                    IDENT@1200..1205 "c_int"
+          COMMA@1205..1206 ","
+          WHITESPACE@1206..1207 " "
+          PARAM@1207..1227
+            BIND_PAT@1207..1210
+              NAME@1207..1210
+                IDENT@1207..1210 "buf"
+            COLON@1210..1211 ":"
+            WHITESPACE@1211..1212 " "
+            POINTER_TYPE@1212..1227
+              STAR@1212..1213 "*"
+              CONST_KW@1213..1218 "const"
+              WHITESPACE@1218..1219 " "
+              PATH_TYPE@1219..1227
+                PATH@1219..1227
+                  PATH_SEGMENT@1219..1227
+                    COLON2@1219..1221 "::"
+                    NAME_REF@1221..1227
+                      IDENT@1221..1227 "c_void"
+          COMMA@1227..1228 ","
+          WHITESPACE@1228..1229 " "
+          PARAM@1229..1242
+            BIND_PAT@1229..1232
+              NAME@1229..1232
+                IDENT@1229..1232 "len"
+            COLON@1232..1233 ":"
+            WHITESPACE@1233..1234 " "
+            PATH_TYPE@1234..1242
+              PATH@1234..1242
+                PATH_SEGMENT@1234..1242
+                  COLON2@1234..1236 "::"
+                  NAME_REF@1236..1242
+                    IDENT@1236..1242 "size_t"
+          COMMA@1242..1243 ","
+          WHITESPACE@1243..1260 "\n                "
+          PARAM@1260..1274
+            BIND_PAT@1260..1265
+              NAME@1260..1265
+                IDENT@1260..1265 "flags"
+            COLON@1265..1266 ":"
+            WHITESPACE@1266..1267 " "
+            PATH_TYPE@1267..1274
+              PATH@1267..1274
+                PATH_SEGMENT@1267..1274
+                  COLON2@1267..1269 "::"
+                  NAME_REF@1269..1274
+                    IDENT@1269..1274 "c_int"
+          R_PAREN@1274..1275 ")"
+        WHITESPACE@1275..1276 " "
+        RET_TYPE@1276..1288
+          THIN_ARROW@1276..1278 "->"
+          WHITESPACE@1278..1279 " "
+          PATH_TYPE@1279..1288
+            PATH@1279..1288
+              PATH_SEGMENT@1279..1288
+                COLON2@1279..1281 "::"
+                NAME_REF@1281..1288
+                  IDENT@1281..1288 "ssize_t"
+        SEMICOLON@1288..1289 ";"
+      WHITESPACE@1289..1294 "\n    "
+      FN_DEF@1294..1481
+        VISIBILITY@1294..1297
+          PUB_KW@1294..1297 "pub"
+        WHITESPACE@1297..1298 " "
+        FN_KW@1298..1300 "fn"
+        WHITESPACE@1300..1301 " "
+        NAME@1301..1309
+          IDENT@1301..1309 "recvfrom"
+        PARAM_LIST@1309..1467
+          L_PAREN@1309..1310 "("
+          PARAM@1310..1325
+            BIND_PAT@1310..1316
+              NAME@1310..1316
+                IDENT@1310..1316 "socket"
+            COLON@1316..1317 ":"
+            WHITESPACE@1317..1318 " "
+            PATH_TYPE@1318..1325
+              PATH@1318..1325
+                PATH_SEGMENT@1318..1325
+                  COLON2@1318..1320 "::"
+                  NAME_REF@1320..1325
+                    IDENT@1320..1325 "c_int"
+          COMMA@1325..1326 ","
+          WHITESPACE@1326..1327 " "
+          PARAM@1327..1345
+            BIND_PAT@1327..1330
+              NAME@1327..1330
+                IDENT@1327..1330 "buf"
+            COLON@1330..1331 ":"
+            WHITESPACE@1331..1332 " "
+            POINTER_TYPE@1332..1345
+              STAR@1332..1333 "*"
+              MUT_KW@1333..1336 "mut"
+              WHITESPACE@1336..1337 " "
+              PATH_TYPE@1337..1345
+                PATH@1337..1345
+                  PATH_SEGMENT@1337..1345
+                    COLON2@1337..1339 "::"
+                    NAME_REF@1339..1345
+                      IDENT@1339..1345 "c_void"
+          COMMA@1345..1346 ","
+          WHITESPACE@1346..1347 " "
+          PARAM@1347..1360
+            BIND_PAT@1347..1350
+              NAME@1347..1350
+                IDENT@1347..1350 "len"
+            COLON@1350..1351 ":"
+            WHITESPACE@1351..1352 " "
+            PATH_TYPE@1352..1360
+              PATH@1352..1360
+                PATH_SEGMENT@1352..1360
+                  COLON2@1352..1354 "::"
+                  NAME_REF@1354..1360
+                    IDENT@1354..1360 "size_t"
+          COMMA@1360..1361 ","
+          WHITESPACE@1361..1382 "\n                    "
+          PARAM@1382..1396
+            BIND_PAT@1382..1387
+              NAME@1382..1387
+                IDENT@1382..1387 "flags"
+            COLON@1387..1388 ":"
+            WHITESPACE@1388..1389 " "
+            PATH_TYPE@1389..1396
+              PATH@1389..1396
+                PATH_SEGMENT@1389..1396
+                  COLON2@1389..1391 "::"
+                  NAME_REF@1391..1396
+                    IDENT@1391..1396 "c_int"
+          COMMA@1396..1397 ","
+          WHITESPACE@1397..1398 " "
+          PARAM@1398..1419
+            BIND_PAT@1398..1402
+              NAME@1398..1402
+                IDENT@1398..1402 "addr"
+            COLON@1402..1403 ":"
+            WHITESPACE@1403..1404 " "
+            POINTER_TYPE@1404..1419
+              STAR@1404..1405 "*"
+              MUT_KW@1405..1408 "mut"
+              WHITESPACE@1408..1409 " "
+              PATH_TYPE@1409..1419
+                PATH@1409..1419
+                  PATH_SEGMENT@1409..1419
+                    COLON2@1409..1411 "::"
+                    NAME_REF@1411..1419
+                      IDENT@1411..1419 "sockaddr"
+          COMMA@1419..1420 ","
+          WHITESPACE@1420..1441 "\n                    "
+          PARAM@1441..1466
+            BIND_PAT@1441..1448
+              NAME@1441..1448
+                IDENT@1441..1448 "addrlen"
+            COLON@1448..1449 ":"
+            WHITESPACE@1449..1450 " "
+            POINTER_TYPE@1450..1466
+              STAR@1450..1451 "*"
+              MUT_KW@1451..1454 "mut"
+              WHITESPACE@1454..1455 " "
+              PATH_TYPE@1455..1466
+                PATH@1455..1466
+                  PATH_SEGMENT@1455..1466
+                    COLON2@1455..1457 "::"
+                    NAME_REF@1457..1466
+                      IDENT@1457..1466 "socklen_t"
+          R_PAREN@1466..1467 ")"
+        WHITESPACE@1467..1468 " "
+        RET_TYPE@1468..1480
+          THIN_ARROW@1468..1470 "->"
+          WHITESPACE@1470..1471 " "
+          PATH_TYPE@1471..1480
+            PATH@1471..1480
+              PATH_SEGMENT@1471..1480
+                COLON2@1471..1473 "::"
+                NAME_REF@1473..1480
+                  IDENT@1473..1480 "ssize_t"
+        SEMICOLON@1480..1481 ";"
+      WHITESPACE@1481..1486 "\n    "
+      FN_DEF@1486..1595
+        VISIBILITY@1486..1489
+          PUB_KW@1486..1489 "pub"
+        WHITESPACE@1489..1490 " "
+        FN_KW@1490..1492 "fn"
+        WHITESPACE@1492..1493 " "
+        NAME@1493..1497
+          IDENT@1493..1497 "recv"
+        PARAM_LIST@1497..1581
+          L_PAREN@1497..1498 "("
+          PARAM@1498..1513
+            BIND_PAT@1498..1504
+              NAME@1498..1504
+                IDENT@1498..1504 "socket"
+            COLON@1504..1505 ":"
+            WHITESPACE@1505..1506 " "
+            PATH_TYPE@1506..1513
+              PATH@1506..1513
+                PATH_SEGMENT@1506..1513
+                  COLON2@1506..1508 "::"
+                  NAME_REF@1508..1513
+                    IDENT@1508..1513 "c_int"
+          COMMA@1513..1514 ","
+          WHITESPACE@1514..1515 " "
+          PARAM@1515..1533
+            BIND_PAT@1515..1518
+              NAME@1515..1518
+                IDENT@1515..1518 "buf"
+            COLON@1518..1519 ":"
+            WHITESPACE@1519..1520 " "
+            POINTER_TYPE@1520..1533
+              STAR@1520..1521 "*"
+              MUT_KW@1521..1524 "mut"
+              WHITESPACE@1524..1525 " "
+              PATH_TYPE@1525..1533
+                PATH@1525..1533
+                  PATH_SEGMENT@1525..1533
+                    COLON2@1525..1527 "::"
+                    NAME_REF@1527..1533
+                      IDENT@1527..1533 "c_void"
+          COMMA@1533..1534 ","
+          WHITESPACE@1534..1535 " "
+          PARAM@1535..1548
+            BIND_PAT@1535..1538
+              NAME@1535..1538
+                IDENT@1535..1538 "len"
+            COLON@1538..1539 ":"
+            WHITESPACE@1539..1540 " "
+            PATH_TYPE@1540..1548
+              PATH@1540..1548
+                PATH_SEGMENT@1540..1548
+                  COLON2@1540..1542 "::"
+                  NAME_REF@1542..1548
+                    IDENT@1542..1548 "size_t"
+          COMMA@1548..1549 ","
+          WHITESPACE@1549..1566 "\n                "
+          PARAM@1566..1580
+            BIND_PAT@1566..1571
+              NAME@1566..1571
+                IDENT@1566..1571 "flags"
+            COLON@1571..1572 ":"
+            WHITESPACE@1572..1573 " "
+            PATH_TYPE@1573..1580
+              PATH@1573..1580
+                PATH_SEGMENT@1573..1580
+                  COLON2@1573..1575 "::"
+                  NAME_REF@1575..1580
+                    IDENT@1575..1580 "c_int"
+          R_PAREN@1580..1581 ")"
+        WHITESPACE@1581..1582 " "
+        RET_TYPE@1582..1594
+          THIN_ARROW@1582..1584 "->"
+          WHITESPACE@1584..1585 " "
+          PATH_TYPE@1585..1594
+            PATH@1585..1594
+              PATH_SEGMENT@1585..1594
+                COLON2@1585..1587 "::"
+                NAME_REF@1587..1594
+                  IDENT@1587..1594 "ssize_t"
+        SEMICOLON@1594..1595 ";"
+      WHITESPACE@1595..1596 "\n"
+      R_CURLY@1596..1597 "}"
+  WHITESPACE@1597..1598 "\n"
diff --git a/crates/ra_syntax/test_data/parser/ok/0032_where_for.rast b/crates/ra_syntax/test_data/parser/ok/0032_where_for.rast
index f71cf5b6c..68eb16bbd 100644
--- a/crates/ra_syntax/test_data/parser/ok/0032_where_for.rast
+++ b/crates/ra_syntax/test_data/parser/ok/0032_where_for.rast
@@ -1,91 +1,91 @@
-SOURCE_FILE@[0; 116)
-  FN_DEF@[0; 115)
-    FN_KW@[0; 2) "fn"
-    WHITESPACE@[2; 3) " "
-    NAME@[3; 21)
-      IDENT@[3; 21) "test_serialization"
-    TYPE_PARAM_LIST@[21; 26)
-      L_ANGLE@[21; 22) "<"
-      TYPE_PARAM@[22; 25)
-        NAME@[22; 25)
-          IDENT@[22; 25) "SER"
-      R_ANGLE@[25; 26) ">"
-    PARAM_LIST@[26; 28)
-      L_PAREN@[26; 27) "("
-      R_PAREN@[27; 28) ")"
-    WHITESPACE@[28; 29) "\n"
-    WHERE_CLAUSE@[29; 112)
-      WHERE_KW@[29; 34) "where"
-      WHITESPACE@[34; 39) "\n    "
-      WHERE_PRED@[39; 111)
-        PATH_TYPE@[39; 42)
-          PATH@[39; 42)
-            PATH_SEGMENT@[39; 42)
-              NAME_REF@[39; 42)
-                IDENT@[39; 42) "SER"
-        COLON@[42; 43) ":"
-        WHITESPACE@[43; 44) " "
-        TYPE_BOUND_LIST@[44; 111)
-          TYPE_BOUND@[44; 53)
-            PATH_TYPE@[44; 53)
-              PATH@[44; 53)
-                PATH_SEGMENT@[44; 53)
-                  NAME_REF@[44; 53)
-                    IDENT@[44; 53) "Serialize"
-          WHITESPACE@[53; 54) " "
-          PLUS@[54; 55) "+"
-          WHITESPACE@[55; 56) " "
-          TYPE_BOUND@[56; 81)
-            FOR_TYPE@[56; 81)
-              FOR_KW@[56; 59) "for"
-              TYPE_PARAM_LIST@[59; 64)
-                L_ANGLE@[59; 60) "<"
-                LIFETIME_PARAM@[60; 63)
-                  LIFETIME@[60; 63) "\'de"
-                R_ANGLE@[63; 64) ">"
-              WHITESPACE@[64; 65) " "
-              PATH_TYPE@[65; 81)
-                PATH@[65; 81)
-                  PATH_SEGMENT@[65; 81)
-                    NAME_REF@[65; 76)
-                      IDENT@[65; 76) "Deserialize"
-                    TYPE_ARG_LIST@[76; 81)
-                      L_ANGLE@[76; 77) "<"
-                      LIFETIME_ARG@[77; 80)
-                        LIFETIME@[77; 80) "\'de"
-                      R_ANGLE@[80; 81) ">"
-          WHITESPACE@[81; 82) " "
-          PLUS@[82; 83) "+"
-          WHITESPACE@[83; 84) " "
-          TYPE_BOUND@[84; 93)
-            PATH_TYPE@[84; 93)
-              PATH@[84; 93)
-                PATH_SEGMENT@[84; 93)
-                  NAME_REF@[84; 93)
-                    IDENT@[84; 93) "PartialEq"
-          WHITESPACE@[93; 94) " "
-          PLUS@[94; 95) "+"
-          WHITESPACE@[95; 96) " "
-          TYPE_BOUND@[96; 111)
-            PATH_TYPE@[96; 111)
-              PATH@[96; 111)
-                PATH@[96; 104)
-                  PATH@[96; 99)
-                    PATH_SEGMENT@[96; 99)
-                      NAME_REF@[96; 99)
-                        IDENT@[96; 99) "std"
-                  COLON2@[99; 101) "::"
-                  PATH_SEGMENT@[101; 104)
-                    NAME_REF@[101; 104)
-                      IDENT@[101; 104) "fmt"
-                COLON2@[104; 106) "::"
-                PATH_SEGMENT@[106; 111)
-                  NAME_REF@[106; 111)
-                    IDENT@[106; 111) "Debug"
-      COMMA@[111; 112) ","
-    WHITESPACE@[112; 113) "\n"
-    BLOCK_EXPR@[113; 115)
-      BLOCK@[113; 115)
-        L_CURLY@[113; 114) "{"
-        R_CURLY@[114; 115) "}"
-  WHITESPACE@[115; 116) "\n"
+SOURCE_FILE@0..116
+  FN_DEF@0..115
+    FN_KW@0..2 "fn"
+    WHITESPACE@2..3 " "
+    NAME@3..21
+      IDENT@3..21 "test_serialization"
+    TYPE_PARAM_LIST@21..26
+      L_ANGLE@21..22 "<"
+      TYPE_PARAM@22..25
+        NAME@22..25
+          IDENT@22..25 "SER"
+      R_ANGLE@25..26 ">"
+    PARAM_LIST@26..28
+      L_PAREN@26..27 "("
+      R_PAREN@27..28 ")"
+    WHITESPACE@28..29 "\n"
+    WHERE_CLAUSE@29..112
+      WHERE_KW@29..34 "where"
+      WHITESPACE@34..39 "\n    "
+      WHERE_PRED@39..111
+        PATH_TYPE@39..42
+          PATH@39..42
+            PATH_SEGMENT@39..42
+              NAME_REF@39..42
+                IDENT@39..42 "SER"
+        COLON@42..43 ":"
+        WHITESPACE@43..44 " "
+        TYPE_BOUND_LIST@44..111
+          TYPE_BOUND@44..53
+            PATH_TYPE@44..53
+              PATH@44..53
+                PATH_SEGMENT@44..53
+                  NAME_REF@44..53
+                    IDENT@44..53 "Serialize"
+          WHITESPACE@53..54 " "
+          PLUS@54..55 "+"
+          WHITESPACE@55..56 " "
+          TYPE_BOUND@56..81
+            FOR_TYPE@56..81
+              FOR_KW@56..59 "for"
+              TYPE_PARAM_LIST@59..64
+                L_ANGLE@59..60 "<"
+                LIFETIME_PARAM@60..63
+                  LIFETIME@60..63 "\'de"
+                R_ANGLE@63..64 ">"
+              WHITESPACE@64..65 " "
+              PATH_TYPE@65..81
+                PATH@65..81
+                  PATH_SEGMENT@65..81
+                    NAME_REF@65..76
+                      IDENT@65..76 "Deserialize"
+                    TYPE_ARG_LIST@76..81
+                      L_ANGLE@76..77 "<"
+                      LIFETIME_ARG@77..80
+                        LIFETIME@77..80 "\'de"
+                      R_ANGLE@80..81 ">"
+          WHITESPACE@81..82 " "
+          PLUS@82..83 "+"
+          WHITESPACE@83..84 " "
+          TYPE_BOUND@84..93
+            PATH_TYPE@84..93
+              PATH@84..93
+                PATH_SEGMENT@84..93
+                  NAME_REF@84..93
+                    IDENT@84..93 "PartialEq"
+          WHITESPACE@93..94 " "
+          PLUS@94..95 "+"
+          WHITESPACE@95..96 " "
+          TYPE_BOUND@96..111
+            PATH_TYPE@96..111
+              PATH@96..111
+                PATH@96..104
+                  PATH@96..99
+                    PATH_SEGMENT@96..99
+                      NAME_REF@96..99
+                        IDENT@96..99 "std"
+                  COLON2@99..101 "::"
+                  PATH_SEGMENT@101..104
+                    NAME_REF@101..104
+                      IDENT@101..104 "fmt"
+                COLON2@104..106 "::"
+                PATH_SEGMENT@106..111
+                  NAME_REF@106..111
+                    IDENT@106..111 "Debug"
+      COMMA@111..112 ","
+    WHITESPACE@112..113 "\n"
+    BLOCK_EXPR@113..115
+      BLOCK@113..115
+        L_CURLY@113..114 "{"
+        R_CURLY@114..115 "}"
+  WHITESPACE@115..116 "\n"
diff --git a/crates/ra_syntax/test_data/parser/ok/0033_label_break.rast b/crates/ra_syntax/test_data/parser/ok/0033_label_break.rast
index 8af41caa0..3977faa60 100644
--- a/crates/ra_syntax/test_data/parser/ok/0033_label_break.rast
+++ b/crates/ra_syntax/test_data/parser/ok/0033_label_break.rast
@@ -1,220 +1,220 @@
-SOURCE_FILE@[0; 506)
-  FN_DEF@[0; 505)
-    COMMENT@[0; 33) "// format with label  ..."
-    WHITESPACE@[33; 34) "\n"
-    FN_KW@[34; 36) "fn"
-    WHITESPACE@[36; 37) " "
-    NAME@[37; 41)
-      IDENT@[37; 41) "main"
-    PARAM_LIST@[41; 43)
-      L_PAREN@[41; 42) "("
-      R_PAREN@[42; 43) ")"
-    WHITESPACE@[43; 44) " "
-    BLOCK_EXPR@[44; 505)
-      BLOCK@[44; 505)
-        L_CURLY@[44; 45) "{"
-        WHITESPACE@[45; 50) "\n    "
-        EXPR_STMT@[50; 66)
-          BLOCK_EXPR@[50; 66)
-            LABEL@[50; 63)
-              LIFETIME@[50; 62) "\'empty_block"
-              COLON@[62; 63) ":"
-            WHITESPACE@[63; 64) " "
-            BLOCK@[64; 66)
-              L_CURLY@[64; 65) "{"
-              R_CURLY@[65; 66) "}"
-        WHITESPACE@[66; 72) "\n\n    "
-        EXPR_STMT@[72; 295)
-          BLOCK_EXPR@[72; 295)
-            LABEL@[72; 79)
-              LIFETIME@[72; 78) "\'block"
-              COLON@[78; 79) ":"
-            WHITESPACE@[79; 80) " "
-            BLOCK@[80; 295)
-              L_CURLY@[80; 81) "{"
-              WHITESPACE@[81; 90) "\n        "
-              EXPR_STMT@[90; 101)
-                CALL_EXPR@[90; 100)
-                  PATH_EXPR@[90; 98)
-                    PATH@[90; 98)
-                      PATH_SEGMENT@[90; 98)
-                        NAME_REF@[90; 98)
-                          IDENT@[90; 98) "do_thing"
-                  ARG_LIST@[98; 100)
-                    L_PAREN@[98; 99) "("
-                    R_PAREN@[99; 100) ")"
-                SEMICOLON@[100; 101) ";"
-              WHITESPACE@[101; 110) "\n        "
-              EXPR_STMT@[110; 170)
-                IF_EXPR@[110; 170)
-                  IF_KW@[110; 112) "if"
-                  WHITESPACE@[112; 113) " "
-                  CONDITION@[113; 132)
-                    CALL_EXPR@[113; 132)
-                      PATH_EXPR@[113; 130)
-                        PATH@[113; 130)
-                          PATH_SEGMENT@[113; 130)
-                            NAME_REF@[113; 130)
-                              IDENT@[113; 130) "condition_not_met"
-                      ARG_LIST@[130; 132)
-                        L_PAREN@[130; 131) "("
-                        R_PAREN@[131; 132) ")"
-                  WHITESPACE@[132; 133) " "
-                  BLOCK_EXPR@[133; 170)
-                    BLOCK@[133; 170)
-                      L_CURLY@[133; 134) "{"
-                      WHITESPACE@[134; 147) "\n            "
-                      EXPR_STMT@[147; 160)
-                        BREAK_EXPR@[147; 159)
-                          BREAK_KW@[147; 152) "break"
-                          WHITESPACE@[152; 153) " "
-                          LIFETIME@[153; 159) "\'block"
-                        SEMICOLON@[159; 160) ";"
-                      WHITESPACE@[160; 169) "\n        "
-                      R_CURLY@[169; 170) "}"
-              WHITESPACE@[170; 179) "\n        "
-              EXPR_STMT@[179; 195)
-                CALL_EXPR@[179; 194)
-                  PATH_EXPR@[179; 192)
-                    PATH@[179; 192)
-                      PATH_SEGMENT@[179; 192)
-                        NAME_REF@[179; 192)
-                          IDENT@[179; 192) "do_next_thing"
-                  ARG_LIST@[192; 194)
-                    L_PAREN@[192; 193) "("
-                    R_PAREN@[193; 194) ")"
-                SEMICOLON@[194; 195) ";"
-              WHITESPACE@[195; 204) "\n        "
-              EXPR_STMT@[204; 264)
-                IF_EXPR@[204; 264)
-                  IF_KW@[204; 206) "if"
-                  WHITESPACE@[206; 207) " "
-                  CONDITION@[207; 226)
-                    CALL_EXPR@[207; 226)
-                      PATH_EXPR@[207; 224)
-                        PATH@[207; 224)
-                          PATH_SEGMENT@[207; 224)
-                            NAME_REF@[207; 224)
-                              IDENT@[207; 224) "condition_not_met"
-                      ARG_LIST@[224; 226)
-                        L_PAREN@[224; 225) "("
-                        R_PAREN@[225; 226) ")"
-                  WHITESPACE@[226; 227) " "
-                  BLOCK_EXPR@[227; 264)
-                    BLOCK@[227; 264)
-                      L_CURLY@[227; 228) "{"
-                      WHITESPACE@[228; 241) "\n            "
-                      EXPR_STMT@[241; 254)
-                        BREAK_EXPR@[241; 253)
-                          BREAK_KW@[241; 246) "break"
-                          WHITESPACE@[246; 247) " "
-                          LIFETIME@[247; 253) "\'block"
-                        SEMICOLON@[253; 254) ";"
-                      WHITESPACE@[254; 263) "\n        "
-                      R_CURLY@[263; 264) "}"
-              WHITESPACE@[264; 273) "\n        "
-              EXPR_STMT@[273; 289)
-                CALL_EXPR@[273; 288)
-                  PATH_EXPR@[273; 286)
-                    PATH@[273; 286)
-                      PATH_SEGMENT@[273; 286)
-                        NAME_REF@[273; 286)
-                          IDENT@[273; 286) "do_last_thing"
-                  ARG_LIST@[286; 288)
-                    L_PAREN@[286; 287) "("
-                    R_PAREN@[287; 288) ")"
-                SEMICOLON@[288; 289) ";"
-              WHITESPACE@[289; 294) "\n    "
-              R_CURLY@[294; 295) "}"
-        WHITESPACE@[295; 301) "\n\n    "
-        LET_STMT@[301; 503)
-          LET_KW@[301; 304) "let"
-          WHITESPACE@[304; 305) " "
-          BIND_PAT@[305; 311)
-            NAME@[305; 311)
-              IDENT@[305; 311) "result"
-          WHITESPACE@[311; 312) " "
-          EQ@[312; 313) "="
-          WHITESPACE@[313; 314) " "
-          BLOCK_EXPR@[314; 502)
-            LABEL@[314; 321)
-              LIFETIME@[314; 320) "\'block"
-              COLON@[320; 321) ":"
-            WHITESPACE@[321; 322) " "
-            BLOCK@[322; 502)
-              L_CURLY@[322; 323) "{"
-              WHITESPACE@[323; 332) "\n        "
-              EXPR_STMT@[332; 403)
-                IF_EXPR@[332; 403)
-                  IF_KW@[332; 334) "if"
-                  WHITESPACE@[334; 335) " "
-                  CONDITION@[335; 340)
-                    CALL_EXPR@[335; 340)
-                      PATH_EXPR@[335; 338)
-                        PATH@[335; 338)
-                          PATH_SEGMENT@[335; 338)
-                            NAME_REF@[335; 338)
-                              IDENT@[335; 338) "foo"
-                      ARG_LIST@[338; 340)
-                        L_PAREN@[338; 339) "("
-                        R_PAREN@[339; 340) ")"
-                  WHITESPACE@[340; 341) " "
-                  BLOCK_EXPR@[341; 403)
-                    BLOCK@[341; 403)
-                      L_CURLY@[341; 342) "{"
-                      WHITESPACE@[342; 355) "\n            "
-                      COMMENT@[355; 365) "// comment"
-                      WHITESPACE@[365; 378) "\n            "
-                      EXPR_STMT@[378; 393)
-                        BREAK_EXPR@[378; 392)
-                          BREAK_KW@[378; 383) "break"
-                          WHITESPACE@[383; 384) " "
-                          LIFETIME@[384; 390) "\'block"
-                          WHITESPACE@[390; 391) " "
-                          LITERAL@[391; 392)
-                            INT_NUMBER@[391; 392) "1"
-                        SEMICOLON@[392; 393) ";"
-                      WHITESPACE@[393; 402) "\n        "
-                      R_CURLY@[402; 403) "}"
-              WHITESPACE@[403; 412) "\n        "
-              EXPR_STMT@[412; 486)
-                IF_EXPR@[412; 486)
-                  IF_KW@[412; 414) "if"
-                  WHITESPACE@[414; 415) " "
-                  CONDITION@[415; 420)
-                    CALL_EXPR@[415; 420)
-                      PATH_EXPR@[415; 418)
-                        PATH@[415; 418)
-                          PATH_SEGMENT@[415; 418)
-                            NAME_REF@[415; 418)
-                              IDENT@[415; 418) "bar"
-                      ARG_LIST@[418; 420)
-                        L_PAREN@[418; 419) "("
-                        R_PAREN@[419; 420) ")"
-                  WHITESPACE@[420; 421) " "
-                  BLOCK_EXPR@[421; 486)
-                    BLOCK@[421; 486)
-                      L_CURLY@[421; 422) "{"
-                      WHITESPACE@[422; 435) "\n            "
-                      COMMENT@[435; 448) "/* comment */"
-                      WHITESPACE@[448; 461) "\n            "
-                      EXPR_STMT@[461; 476)
-                        BREAK_EXPR@[461; 475)
-                          BREAK_KW@[461; 466) "break"
-                          WHITESPACE@[466; 467) " "
-                          LIFETIME@[467; 473) "\'block"
-                          WHITESPACE@[473; 474) " "
-                          LITERAL@[474; 475)
-                            INT_NUMBER@[474; 475) "2"
-                        SEMICOLON@[475; 476) ";"
-                      WHITESPACE@[476; 485) "\n        "
-                      R_CURLY@[485; 486) "}"
-              WHITESPACE@[486; 495) "\n        "
-              LITERAL@[495; 496)
-                INT_NUMBER@[495; 496) "3"
-              WHITESPACE@[496; 501) "\n    "
-              R_CURLY@[501; 502) "}"
-          SEMICOLON@[502; 503) ";"
-        WHITESPACE@[503; 504) "\n"
-        R_CURLY@[504; 505) "}"
-  WHITESPACE@[505; 506) "\n"
+SOURCE_FILE@0..506
+  FN_DEF@0..505
+    COMMENT@0..33 "// format with label  ..."
+    WHITESPACE@33..34 "\n"
+    FN_KW@34..36 "fn"
+    WHITESPACE@36..37 " "
+    NAME@37..41
+      IDENT@37..41 "main"
+    PARAM_LIST@41..43
+      L_PAREN@41..42 "("
+      R_PAREN@42..43 ")"
+    WHITESPACE@43..44 " "
+    BLOCK_EXPR@44..505
+      BLOCK@44..505
+        L_CURLY@44..45 "{"
+        WHITESPACE@45..50 "\n    "
+        EXPR_STMT@50..66
+          BLOCK_EXPR@50..66
+            LABEL@50..63
+              LIFETIME@50..62 "\'empty_block"
+              COLON@62..63 ":"
+            WHITESPACE@63..64 " "
+            BLOCK@64..66
+              L_CURLY@64..65 "{"
+              R_CURLY@65..66 "}"
+        WHITESPACE@66..72 "\n\n    "
+        EXPR_STMT@72..295
+          BLOCK_EXPR@72..295
+            LABEL@72..79
+              LIFETIME@72..78 "\'block"
+              COLON@78..79 ":"
+            WHITESPACE@79..80 " "
+            BLOCK@80..295
+              L_CURLY@80..81 "{"
+              WHITESPACE@81..90 "\n        "
+              EXPR_STMT@90..101
+                CALL_EXPR@90..100
+                  PATH_EXPR@90..98
+                    PATH@90..98
+                      PATH_SEGMENT@90..98
+                        NAME_REF@90..98
+                          IDENT@90..98 "do_thing"
+                  ARG_LIST@98..100
+                    L_PAREN@98..99 "("
+                    R_PAREN@99..100 ")"
+                SEMICOLON@100..101 ";"
+              WHITESPACE@101..110 "\n        "
+              EXPR_STMT@110..170
+                IF_EXPR@110..170
+                  IF_KW@110..112 "if"
+                  WHITESPACE@112..113 " "
+                  CONDITION@113..132
+                    CALL_EXPR@113..132
+                      PATH_EXPR@113..130
+                        PATH@113..130
+                          PATH_SEGMENT@113..130
+                            NAME_REF@113..130
+                              IDENT@113..130 "condition_not_met"
+                      ARG_LIST@130..132
+                        L_PAREN@130..131 "("
+                        R_PAREN@131..132 ")"
+                  WHITESPACE@132..133 " "
+                  BLOCK_EXPR@133..170
+                    BLOCK@133..170
+                      L_CURLY@133..134 "{"
+                      WHITESPACE@134..147 "\n            "
+                      EXPR_STMT@147..160
+                        BREAK_EXPR@147..159
+                          BREAK_KW@147..152 "break"
+                          WHITESPACE@152..153 " "
+                          LIFETIME@153..159 "\'block"
+                        SEMICOLON@159..160 ";"
+                      WHITESPACE@160..169 "\n        "
+                      R_CURLY@169..170 "}"
+              WHITESPACE@170..179 "\n        "
+              EXPR_STMT@179..195
+                CALL_EXPR@179..194
+                  PATH_EXPR@179..192
+                    PATH@179..192
+                      PATH_SEGMENT@179..192
+                        NAME_REF@179..192
+                          IDENT@179..192 "do_next_thing"
+                  ARG_LIST@192..194
+                    L_PAREN@192..193 "("
+                    R_PAREN@193..194 ")"
+                SEMICOLON@194..195 ";"
+              WHITESPACE@195..204 "\n        "
+              EXPR_STMT@204..264
+                IF_EXPR@204..264
+                  IF_KW@204..206 "if"
+                  WHITESPACE@206..207 " "
+                  CONDITION@207..226
+                    CALL_EXPR@207..226
+                      PATH_EXPR@207..224
+                        PATH@207..224
+                          PATH_SEGMENT@207..224
+                            NAME_REF@207..224
+                              IDENT@207..224 "condition_not_met"
+                      ARG_LIST@224..226
+                        L_PAREN@224..225 "("
+                        R_PAREN@225..226 ")"
+                  WHITESPACE@226..227 " "
+                  BLOCK_EXPR@227..264
+                    BLOCK@227..264
+                      L_CURLY@227..228 "{"
+                      WHITESPACE@228..241 "\n            "
+                      EXPR_STMT@241..254
+                        BREAK_EXPR@241..253
+                          BREAK_KW@241..246 "break"
+                          WHITESPACE@246..247 " "
+                          LIFETIME@247..253 "\'block"
+                        SEMICOLON@253..254 ";"
+                      WHITESPACE@254..263 "\n        "
+                      R_CURLY@263..264 "}"
+              WHITESPACE@264..273 "\n        "
+              EXPR_STMT@273..289
+                CALL_EXPR@273..288
+                  PATH_EXPR@273..286
+                    PATH@273..286
+                      PATH_SEGMENT@273..286
+                        NAME_REF@273..286
+                          IDENT@273..286 "do_last_thing"
+                  ARG_LIST@286..288
+                    L_PAREN@286..287 "("
+                    R_PAREN@287..288 ")"
+                SEMICOLON@288..289 ";"
+              WHITESPACE@289..294 "\n    "
+              R_CURLY@294..295 "}"
+        WHITESPACE@295..301 "\n\n    "
+        LET_STMT@301..503
+          LET_KW@301..304 "let"
+          WHITESPACE@304..305 " "
+          BIND_PAT@305..311
+            NAME@305..311
+              IDENT@305..311 "result"
+          WHITESPACE@311..312 " "
+          EQ@312..313 "="
+          WHITESPACE@313..314 " "
+          BLOCK_EXPR@314..502
+            LABEL@314..321
+              LIFETIME@314..320 "\'block"
+              COLON@320..321 ":"
+            WHITESPACE@321..322 " "
+            BLOCK@322..502
+              L_CURLY@322..323 "{"
+              WHITESPACE@323..332 "\n        "
+              EXPR_STMT@332..403
+                IF_EXPR@332..403
+                  IF_KW@332..334 "if"
+                  WHITESPACE@334..335 " "
+                  CONDITION@335..340
+                    CALL_EXPR@335..340
+                      PATH_EXPR@335..338
+                        PATH@335..338
+                          PATH_SEGMENT@335..338
+                            NAME_REF@335..338
+                              IDENT@335..338 "foo"
+                      ARG_LIST@338..340
+                        L_PAREN@338..339 "("
+                        R_PAREN@339..340 ")"
+                  WHITESPACE@340..341 " "
+                  BLOCK_EXPR@341..403
+                    BLOCK@341..403
+                      L_CURLY@341..342 "{"
+                      WHITESPACE@342..355 "\n            "
+                      COMMENT@355..365 "// comment"
+                      WHITESPACE@365..378 "\n            "
+                      EXPR_STMT@378..393
+                        BREAK_EXPR@378..392
+                          BREAK_KW@378..383 "break"
+                          WHITESPACE@383..384 " "
+                          LIFETIME@384..390 "\'block"
+                          WHITESPACE@390..391 " "
+                          LITERAL@391..392
+                            INT_NUMBER@391..392 "1"
+                        SEMICOLON@392..393 ";"
+                      WHITESPACE@393..402 "\n        "
+                      R_CURLY@402..403 "}"
+              WHITESPACE@403..412 "\n        "
+              EXPR_STMT@412..486
+                IF_EXPR@412..486
+                  IF_KW@412..414 "if"
+                  WHITESPACE@414..415 " "
+                  CONDITION@415..420
+                    CALL_EXPR@415..420
+                      PATH_EXPR@415..418
+                        PATH@415..418
+                          PATH_SEGMENT@415..418
+                            NAME_REF@415..418
+                              IDENT@415..418 "bar"
+                      ARG_LIST@418..420
+                        L_PAREN@418..419 "("
+                        R_PAREN@419..420 ")"
+                  WHITESPACE@420..421 " "
+                  BLOCK_EXPR@421..486
+                    BLOCK@421..486
+                      L_CURLY@421..422 "{"
+                      WHITESPACE@422..435 "\n            "
+                      COMMENT@435..448 "/* comment */"
+                      WHITESPACE@448..461 "\n            "
+                      EXPR_STMT@461..476
+                        BREAK_EXPR@461..475
+                          BREAK_KW@461..466 "break"
+                          WHITESPACE@466..467 " "
+                          LIFETIME@467..473 "\'block"
+                          WHITESPACE@473..474 " "
+                          LITERAL@474..475
+                            INT_NUMBER@474..475 "2"
+                        SEMICOLON@475..476 ";"
+                      WHITESPACE@476..485 "\n        "
+                      R_CURLY@485..486 "}"
+              WHITESPACE@486..495 "\n        "
+              LITERAL@495..496
+                INT_NUMBER@495..496 "3"
+              WHITESPACE@496..501 "\n    "
+              R_CURLY@501..502 "}"
+          SEMICOLON@502..503 ";"
+        WHITESPACE@503..504 "\n"
+        R_CURLY@504..505 "}"
+  WHITESPACE@505..506 "\n"
diff --git a/crates/ra_syntax/test_data/parser/ok/0034_crate_path_in_call.rast b/crates/ra_syntax/test_data/parser/ok/0034_crate_path_in_call.rast
index beaa96388..3b9e8c71c 100644
--- a/crates/ra_syntax/test_data/parser/ok/0034_crate_path_in_call.rast
+++ b/crates/ra_syntax/test_data/parser/ok/0034_crate_path_in_call.rast
@@ -1,42 +1,42 @@
-SOURCE_FILE@[0; 62)
-  FN_DEF@[0; 61)
-    FN_KW@[0; 2) "fn"
-    WHITESPACE@[2; 3) " "
-    NAME@[3; 7)
-      IDENT@[3; 7) "main"
-    PARAM_LIST@[7; 9)
-      L_PAREN@[7; 8) "("
-      R_PAREN@[8; 9) ")"
-    WHITESPACE@[9; 10) " "
-    BLOCK_EXPR@[10; 61)
-      BLOCK@[10; 61)
-        L_CURLY@[10; 11) "{"
-        WHITESPACE@[11; 16) "\n    "
-        EXPR_STMT@[16; 59)
-          CALL_EXPR@[16; 58)
-            PATH_EXPR@[16; 26)
-              PATH@[16; 26)
-                PATH_SEGMENT@[16; 26)
-                  NAME_REF@[16; 26)
-                    IDENT@[16; 26) "make_query"
-            ARG_LIST@[26; 58)
-              L_PAREN@[26; 27) "("
-              PATH_EXPR@[27; 57)
-                PATH@[27; 57)
-                  PATH@[27; 44)
-                    PATH@[27; 32)
-                      PATH_SEGMENT@[27; 32)
-                        CRATE_KW@[27; 32) "crate"
-                    COLON2@[32; 34) "::"
-                    PATH_SEGMENT@[34; 44)
-                      NAME_REF@[34; 44)
-                        IDENT@[34; 44) "module_map"
-                  COLON2@[44; 46) "::"
-                  PATH_SEGMENT@[46; 57)
-                    NAME_REF@[46; 57)
-                      IDENT@[46; 57) "module_tree"
-              R_PAREN@[57; 58) ")"
-          SEMICOLON@[58; 59) ";"
-        WHITESPACE@[59; 60) "\n"
-        R_CURLY@[60; 61) "}"
-  WHITESPACE@[61; 62) "\n"
+SOURCE_FILE@0..62
+  FN_DEF@0..61
+    FN_KW@0..2 "fn"
+    WHITESPACE@2..3 " "
+    NAME@3..7
+      IDENT@3..7 "main"
+    PARAM_LIST@7..9
+      L_PAREN@7..8 "("
+      R_PAREN@8..9 ")"
+    WHITESPACE@9..10 " "
+    BLOCK_EXPR@10..61
+      BLOCK@10..61
+        L_CURLY@10..11 "{"
+        WHITESPACE@11..16 "\n    "
+        EXPR_STMT@16..59
+          CALL_EXPR@16..58
+            PATH_EXPR@16..26
+              PATH@16..26
+                PATH_SEGMENT@16..26
+                  NAME_REF@16..26
+                    IDENT@16..26 "make_query"
+            ARG_LIST@26..58
+              L_PAREN@26..27 "("
+              PATH_EXPR@27..57
+                PATH@27..57
+                  PATH@27..44
+                    PATH@27..32
+                      PATH_SEGMENT@27..32
+                        CRATE_KW@27..32 "crate"
+                    COLON2@32..34 "::"
+                    PATH_SEGMENT@34..44
+                      NAME_REF@34..44
+                        IDENT@34..44 "module_map"
+                  COLON2@44..46 "::"
+                  PATH_SEGMENT@46..57
+                    NAME_REF@46..57
+                      IDENT@46..57 "module_tree"
+              R_PAREN@57..58 ")"
+          SEMICOLON@58..59 ";"
+        WHITESPACE@59..60 "\n"
+        R_CURLY@60..61 "}"
+  WHITESPACE@61..62 "\n"
diff --git a/crates/ra_syntax/test_data/parser/ok/0035_weird_exprs.rast b/crates/ra_syntax/test_data/parser/ok/0035_weird_exprs.rast
index 7143a31a5..9af689635 100644
--- a/crates/ra_syntax/test_data/parser/ok/0035_weird_exprs.rast
+++ b/crates/ra_syntax/test_data/parser/ok/0035_weird_exprs.rast
@@ -1,2329 +1,2329 @@
-SOURCE_FILE@[0; 3813)
-  COMMENT@[0; 55) "//! Adapted from a `r ..."
-  WHITESPACE@[55; 56) "\n"
-  COMMENT@[56; 173) "//! https://github.co ..."
-  WHITESPACE@[173; 174) "\n"
-  COMMENT@[174; 178) "//! "
-  WHITESPACE@[178; 179) "\n"
-  COMMENT@[179; 269) "//! Reported to rust- ..."
-  WHITESPACE@[269; 271) "\n\n"
-  ATTR@[271; 302)
-    POUND@[271; 272) "#"
-    BANG@[272; 273) "!"
-    L_BRACK@[273; 274) "["
-    PATH@[274; 279)
-      PATH_SEGMENT@[274; 279)
-        NAME_REF@[274; 279)
-          IDENT@[274; 279) "allow"
-    TOKEN_TREE@[279; 301)
-      L_PAREN@[279; 280) "("
-      IDENT@[280; 300) "non_camel_case_types"
-      R_PAREN@[300; 301) ")"
-    R_BRACK@[301; 302) "]"
-  WHITESPACE@[302; 303) "\n"
-  ATTR@[303; 323)
-    POUND@[303; 304) "#"
-    BANG@[304; 305) "!"
-    L_BRACK@[305; 306) "["
-    PATH@[306; 311)
-      PATH_SEGMENT@[306; 311)
-        NAME_REF@[306; 311)
-          IDENT@[306; 311) "allow"
-    TOKEN_TREE@[311; 322)
-      L_PAREN@[311; 312) "("
-      IDENT@[312; 321) "dead_code"
-      R_PAREN@[321; 322) ")"
-    R_BRACK@[322; 323) "]"
-  WHITESPACE@[323; 324) "\n"
-  ATTR@[324; 351)
-    POUND@[324; 325) "#"
-    BANG@[325; 326) "!"
-    L_BRACK@[326; 327) "["
-    PATH@[327; 332)
-      PATH_SEGMENT@[327; 332)
-        NAME_REF@[327; 332)
-          IDENT@[327; 332) "allow"
-    TOKEN_TREE@[332; 350)
-      L_PAREN@[332; 333) "("
-      IDENT@[333; 349) "unreachable_code"
-      R_PAREN@[349; 350) ")"
-    R_BRACK@[350; 351) "]"
-  WHITESPACE@[351; 352) "\n"
-  ATTR@[352; 376)
-    POUND@[352; 353) "#"
-    BANG@[353; 354) "!"
-    L_BRACK@[354; 355) "["
-    PATH@[355; 360)
-      PATH_SEGMENT@[355; 360)
-        NAME_REF@[355; 360)
-          IDENT@[355; 360) "allow"
-    TOKEN_TREE@[360; 375)
-      L_PAREN@[360; 361) "("
-      IDENT@[361; 374) "unused_parens"
-      R_PAREN@[374; 375) ")"
-    R_BRACK@[375; 376) "]"
-  WHITESPACE@[376; 378) "\n\n"
-  ATTR@[378; 405)
-    POUND@[378; 379) "#"
-    BANG@[379; 380) "!"
-    L_BRACK@[380; 381) "["
-    PATH@[381; 396)
-      PATH_SEGMENT@[381; 396)
-        NAME_REF@[381; 396)
-          IDENT@[381; 396) "recursion_limit"
-    WHITESPACE@[396; 397) " "
-    EQ@[397; 398) "="
-    WHITESPACE@[398; 399) " "
-    LITERAL@[399; 404)
-      STRING@[399; 404) "\"128\""
-    R_BRACK@[404; 405) "]"
-  WHITESPACE@[405; 407) "\n\n"
-  USE_ITEM@[407; 427)
-    USE_KW@[407; 410) "use"
-    WHITESPACE@[410; 411) " "
-    USE_TREE@[411; 426)
-      PATH@[411; 426)
-        PATH@[411; 420)
-          PATH@[411; 414)
-            PATH_SEGMENT@[411; 414)
-              NAME_REF@[411; 414)
-                IDENT@[411; 414) "std"
-          COLON2@[414; 416) "::"
-          PATH_SEGMENT@[416; 420)
-            NAME_REF@[416; 420)
-              IDENT@[416; 420) "cell"
-        COLON2@[420; 422) "::"
-        PATH_SEGMENT@[422; 426)
-          NAME_REF@[422; 426)
-            IDENT@[422; 426) "Cell"
-    SEMICOLON@[426; 427) ";"
-  WHITESPACE@[427; 428) "\n"
-  USE_ITEM@[428; 447)
-    USE_KW@[428; 431) "use"
-    WHITESPACE@[431; 432) " "
-    USE_TREE@[432; 446)
-      PATH@[432; 446)
-        PATH@[432; 440)
-          PATH@[432; 435)
-            PATH_SEGMENT@[432; 435)
-              NAME_REF@[432; 435)
-                IDENT@[432; 435) "std"
-          COLON2@[435; 437) "::"
-          PATH_SEGMENT@[437; 440)
-            NAME_REF@[437; 440)
-              IDENT@[437; 440) "mem"
-        COLON2@[440; 442) "::"
-        PATH_SEGMENT@[442; 446)
-          NAME_REF@[442; 446)
-            IDENT@[442; 446) "swap"
-    SEMICOLON@[446; 447) ";"
-  WHITESPACE@[447; 449) "\n\n"
-  COMMENT@[449; 518) "// Just a grab bag of ..."
-  WHITESPACE@[518; 520) "\n\n"
-  FN_DEF@[520; 572)
-    FN_KW@[520; 522) "fn"
-    WHITESPACE@[522; 523) " "
-    NAME@[523; 530)
-      IDENT@[523; 530) "strange"
-    PARAM_LIST@[530; 532)
-      L_PAREN@[530; 531) "("
-      R_PAREN@[531; 532) ")"
-    WHITESPACE@[532; 533) " "
-    RET_TYPE@[533; 540)
-      THIN_ARROW@[533; 535) "->"
-      WHITESPACE@[535; 536) " "
-      PATH_TYPE@[536; 540)
-        PATH@[536; 540)
-          PATH_SEGMENT@[536; 540)
-            NAME_REF@[536; 540)
-              IDENT@[536; 540) "bool"
-    WHITESPACE@[540; 541) " "
-    BLOCK_EXPR@[541; 572)
-      BLOCK@[541; 572)
-        L_CURLY@[541; 542) "{"
-        WHITESPACE@[542; 543) " "
-        LET_STMT@[543; 570)
-          LET_KW@[543; 546) "let"
-          WHITESPACE@[546; 547) " "
-          BIND_PAT@[547; 549)
-            NAME@[547; 549)
-              IDENT@[547; 549) "_x"
-          COLON@[549; 550) ":"
-          WHITESPACE@[550; 551) " "
-          PATH_TYPE@[551; 555)
-            PATH@[551; 555)
-              PATH_SEGMENT@[551; 555)
-                NAME_REF@[551; 555)
-                  IDENT@[551; 555) "bool"
-          WHITESPACE@[555; 556) " "
-          EQ@[556; 557) "="
-          WHITESPACE@[557; 558) " "
-          RETURN_EXPR@[558; 569)
-            RETURN_KW@[558; 564) "return"
-            WHITESPACE@[564; 565) " "
-            LITERAL@[565; 569)
-              TRUE_KW@[565; 569) "true"
-          SEMICOLON@[569; 570) ";"
-        WHITESPACE@[570; 571) " "
-        R_CURLY@[571; 572) "}"
-  WHITESPACE@[572; 574) "\n\n"
-  FN_DEF@[574; 624)
-    FN_KW@[574; 576) "fn"
-    WHITESPACE@[576; 577) " "
-    NAME@[577; 582)
-      IDENT@[577; 582) "funny"
-    PARAM_LIST@[582; 584)
-      L_PAREN@[582; 583) "("
-      R_PAREN@[583; 584) ")"
-    WHITESPACE@[584; 585) " "
-    BLOCK_EXPR@[585; 624)
-      BLOCK@[585; 624)
-        L_CURLY@[585; 586) "{"
-        WHITESPACE@[586; 591) "\n    "
-        FN_DEF@[591; 607)
-          FN_KW@[591; 593) "fn"
-          WHITESPACE@[593; 594) " "
-          NAME@[594; 595)
-            IDENT@[594; 595) "f"
-          PARAM_LIST@[595; 603)
-            L_PAREN@[595; 596) "("
-            PARAM@[596; 602)
-              BIND_PAT@[596; 598)
-                NAME@[596; 598)
-                  IDENT@[596; 598) "_x"
-              COLON@[598; 599) ":"
-              WHITESPACE@[599; 600) " "
-              TUPLE_TYPE@[600; 602)
-                L_PAREN@[600; 601) "("
-                R_PAREN@[601; 602) ")"
-            R_PAREN@[602; 603) ")"
-          WHITESPACE@[603; 604) " "
-          BLOCK_EXPR@[604; 607)
-            BLOCK@[604; 607)
-              L_CURLY@[604; 605) "{"
-              WHITESPACE@[605; 606) " "
-              R_CURLY@[606; 607) "}"
-        WHITESPACE@[607; 612) "\n    "
-        EXPR_STMT@[612; 622)
-          CALL_EXPR@[612; 621)
-            PATH_EXPR@[612; 613)
-              PATH@[612; 613)
-                PATH_SEGMENT@[612; 613)
-                  NAME_REF@[612; 613)
-                    IDENT@[612; 613) "f"
-            ARG_LIST@[613; 621)
-              L_PAREN@[613; 614) "("
-              RETURN_EXPR@[614; 620)
-                RETURN_KW@[614; 620) "return"
-              R_PAREN@[620; 621) ")"
-          SEMICOLON@[621; 622) ";"
-        WHITESPACE@[622; 623) "\n"
-        R_CURLY@[623; 624) "}"
-  WHITESPACE@[624; 626) "\n\n"
-  FN_DEF@[626; 816)
-    FN_KW@[626; 628) "fn"
-    WHITESPACE@[628; 629) " "
-    NAME@[629; 633)
-      IDENT@[629; 633) "what"
-    PARAM_LIST@[633; 635)
-      L_PAREN@[633; 634) "("
-      R_PAREN@[634; 635) ")"
-    WHITESPACE@[635; 636) " "
-    BLOCK_EXPR@[636; 816)
-      BLOCK@[636; 816)
-        L_CURLY@[636; 637) "{"
-        WHITESPACE@[637; 642) "\n    "
-        FN_DEF@[642; 720)
-          FN_KW@[642; 644) "fn"
-          WHITESPACE@[644; 645) " "
-          NAME@[645; 648)
-            IDENT@[645; 648) "the"
-          PARAM_LIST@[648; 664)
-            L_PAREN@[648; 649) "("
-            PARAM@[649; 663)
-              BIND_PAT@[649; 650)
-                NAME@[649; 650)
-                  IDENT@[649; 650) "x"
-              COLON@[650; 651) ":"
-              WHITESPACE@[651; 652) " "
-              REFERENCE_TYPE@[652; 663)
-                AMP@[652; 653) "&"
-                PATH_TYPE@[653; 663)
-                  PATH@[653; 663)
-                    PATH_SEGMENT@[653; 663)
-                      NAME_REF@[653; 657)
-                        IDENT@[653; 657) "Cell"
-                      TYPE_ARG_LIST@[657; 663)
-                        L_ANGLE@[657; 658) "<"
-                        TYPE_ARG@[658; 662)
-                          PATH_TYPE@[658; 662)
-                            PATH@[658; 662)
-                              PATH_SEGMENT@[658; 662)
-                                NAME_REF@[658; 662)
-                                  IDENT@[658; 662) "bool"
-                        R_ANGLE@[662; 663) ">"
-            R_PAREN@[663; 664) ")"
-          WHITESPACE@[664; 665) " "
-          BLOCK_EXPR@[665; 720)
-            BLOCK@[665; 720)
-              L_CURLY@[665; 666) "{"
-              WHITESPACE@[666; 675) "\n        "
-              EXPR_STMT@[675; 714)
-                RETURN_EXPR@[675; 713)
-                  RETURN_KW@[675; 681) "return"
-                  WHITESPACE@[681; 682) " "
-                  WHILE_EXPR@[682; 713)
-                    WHILE_KW@[682; 687) "while"
-                    WHITESPACE@[687; 688) " "
-                    CONDITION@[688; 696)
-                      PREFIX_EXPR@[688; 696)
-                        BANG@[688; 689) "!"
-                        METHOD_CALL_EXPR@[689; 696)
-                          PATH_EXPR@[689; 690)
-                            PATH@[689; 690)
-                              PATH_SEGMENT@[689; 690)
-                                NAME_REF@[689; 690)
-                                  IDENT@[689; 690) "x"
-                          DOT@[690; 691) "."
-                          NAME_REF@[691; 694)
-                            IDENT@[691; 694) "get"
-                          ARG_LIST@[694; 696)
-                            L_PAREN@[694; 695) "("
-                            R_PAREN@[695; 696) ")"
-                    WHITESPACE@[696; 697) " "
-                    BLOCK_EXPR@[697; 713)
-                      BLOCK@[697; 713)
-                        L_CURLY@[697; 698) "{"
-                        WHITESPACE@[698; 699) " "
-                        EXPR_STMT@[699; 711)
-                          METHOD_CALL_EXPR@[699; 710)
-                            PATH_EXPR@[699; 700)
-                              PATH@[699; 700)
-                                PATH_SEGMENT@[699; 700)
-                                  NAME_REF@[699; 700)
-                                    IDENT@[699; 700) "x"
-                            DOT@[700; 701) "."
-                            NAME_REF@[701; 704)
-                              IDENT@[701; 704) "set"
-                            ARG_LIST@[704; 710)
-                              L_PAREN@[704; 705) "("
-                              LITERAL@[705; 709)
-                                TRUE_KW@[705; 709) "true"
-                              R_PAREN@[709; 710) ")"
-                          SEMICOLON@[710; 711) ";"
-                        WHITESPACE@[711; 712) " "
-                        R_CURLY@[712; 713) "}"
-                SEMICOLON@[713; 714) ";"
-              WHITESPACE@[714; 719) "\n    "
-              R_CURLY@[719; 720) "}"
-        WHITESPACE@[720; 725) "\n    "
-        LET_STMT@[725; 751)
-          LET_KW@[725; 728) "let"
-          WHITESPACE@[728; 729) " "
-          BIND_PAT@[729; 730)
-            NAME@[729; 730)
-              IDENT@[729; 730) "i"
-          WHITESPACE@[730; 731) " "
-          EQ@[731; 732) "="
-          WHITESPACE@[732; 733) " "
-          REF_EXPR@[733; 750)
-            AMP@[733; 734) "&"
-            CALL_EXPR@[734; 750)
-              PATH_EXPR@[734; 743)
-                PATH@[734; 743)
-                  PATH@[734; 738)
-                    PATH_SEGMENT@[734; 738)
-                      NAME_REF@[734; 738)
-                        IDENT@[734; 738) "Cell"
-                  COLON2@[738; 740) "::"
-                  PATH_SEGMENT@[740; 743)
-                    NAME_REF@[740; 743)
-                      IDENT@[740; 743) "new"
-              ARG_LIST@[743; 750)
-                L_PAREN@[743; 744) "("
-                LITERAL@[744; 749)
-                  FALSE_KW@[744; 749) "false"
-                R_PAREN@[749; 750) ")"
-          SEMICOLON@[750; 751) ";"
-        WHITESPACE@[751; 756) "\n    "
-        LET_STMT@[756; 778)
-          LET_KW@[756; 759) "let"
-          WHITESPACE@[759; 760) " "
-          BIND_PAT@[760; 764)
-            NAME@[760; 764)
-              IDENT@[760; 764) "dont"
-          WHITESPACE@[764; 765) " "
-          EQ@[765; 766) "="
-          WHITESPACE@[766; 767) " "
-          BLOCK_EXPR@[767; 777)
-            BLOCK@[767; 777)
-              L_CURLY@[767; 768) "{"
-              LAMBDA_EXPR@[768; 776)
-                PARAM_LIST@[768; 770)
-                  PIPE@[768; 769) "|"
-                  PIPE@[769; 770) "|"
-                CALL_EXPR@[770; 776)
-                  PATH_EXPR@[770; 773)
-                    PATH@[770; 773)
-                      PATH_SEGMENT@[770; 773)
-                        NAME_REF@[770; 773)
-                          IDENT@[770; 773) "the"
-                  ARG_LIST@[773; 776)
-                    L_PAREN@[773; 774) "("
-                    PATH_EXPR@[774; 775)
-                      PATH@[774; 775)
-                        PATH_SEGMENT@[774; 775)
-                          NAME_REF@[774; 775)
-                            IDENT@[774; 775) "i"
-                    R_PAREN@[775; 776) ")"
-              R_CURLY@[776; 777) "}"
-          SEMICOLON@[777; 778) ";"
-        WHITESPACE@[778; 783) "\n    "
-        EXPR_STMT@[783; 790)
-          CALL_EXPR@[783; 789)
-            PATH_EXPR@[783; 787)
-              PATH@[783; 787)
-                PATH_SEGMENT@[783; 787)
-                  NAME_REF@[783; 787)
-                    IDENT@[783; 787) "dont"
-            ARG_LIST@[787; 789)
-              L_PAREN@[787; 788) "("
-              R_PAREN@[788; 789) ")"
-          SEMICOLON@[789; 790) ";"
-        WHITESPACE@[790; 795) "\n    "
-        EXPR_STMT@[795; 814)
-          MACRO_CALL@[795; 813)
-            PATH@[795; 801)
-              PATH_SEGMENT@[795; 801)
-                NAME_REF@[795; 801)
-                  IDENT@[795; 801) "assert"
-            BANG@[801; 802) "!"
-            TOKEN_TREE@[802; 813)
-              L_PAREN@[802; 803) "("
-              TOKEN_TREE@[803; 812)
-                L_PAREN@[803; 804) "("
-                IDENT@[804; 805) "i"
-                DOT@[805; 806) "."
-                IDENT@[806; 809) "get"
-                TOKEN_TREE@[809; 811)
-                  L_PAREN@[809; 810) "("
-                  R_PAREN@[810; 811) ")"
-                R_PAREN@[811; 812) ")"
-              R_PAREN@[812; 813) ")"
-          SEMICOLON@[813; 814) ";"
-        WHITESPACE@[814; 815) "\n"
-        R_CURLY@[815; 816) "}"
-  WHITESPACE@[816; 818) "\n\n"
-  FN_DEF@[818; 1322)
-    FN_KW@[818; 820) "fn"
-    WHITESPACE@[820; 821) " "
-    NAME@[821; 832)
-      IDENT@[821; 832) "zombiejesus"
-    PARAM_LIST@[832; 834)
-      L_PAREN@[832; 833) "("
-      R_PAREN@[833; 834) ")"
-    WHITESPACE@[834; 835) " "
-    BLOCK_EXPR@[835; 1322)
-      BLOCK@[835; 1322)
-        L_CURLY@[835; 836) "{"
-        WHITESPACE@[836; 841) "\n    "
-        LOOP_EXPR@[841; 1320)
-          LOOP_KW@[841; 845) "loop"
-          WHITESPACE@[845; 846) " "
-          BLOCK_EXPR@[846; 1320)
-            BLOCK@[846; 1320)
-              L_CURLY@[846; 847) "{"
-              WHITESPACE@[847; 856) "\n        "
-              EXPR_STMT@[856; 1283)
-                WHILE_EXPR@[856; 1283)
-                  WHILE_KW@[856; 861) "while"
-                  WHITESPACE@[861; 862) " "
-                  CONDITION@[862; 870)
-                    PAREN_EXPR@[862; 870)
-                      L_PAREN@[862; 863) "("
-                      RETURN_EXPR@[863; 869)
-                        RETURN_KW@[863; 869) "return"
-                      R_PAREN@[869; 870) ")"
-                  WHITESPACE@[870; 871) " "
-                  BLOCK_EXPR@[871; 1283)
-                    BLOCK@[871; 1283)
-                      L_CURLY@[871; 872) "{"
-                      WHITESPACE@[872; 885) "\n            "
-                      IF_EXPR@[885; 1273)
-                        IF_KW@[885; 887) "if"
-                        WHITESPACE@[887; 888) " "
-                        CONDITION@[888; 896)
-                          PAREN_EXPR@[888; 896)
-                            L_PAREN@[888; 889) "("
-                            RETURN_EXPR@[889; 895)
-                              RETURN_KW@[889; 895) "return"
-                            R_PAREN@[895; 896) ")"
-                        WHITESPACE@[896; 897) " "
-                        BLOCK_EXPR@[897; 1216)
-                          BLOCK@[897; 1216)
-                            L_CURLY@[897; 898) "{"
-                            WHITESPACE@[898; 915) "\n                "
-                            EXPR_STMT@[915; 1202)
-                              MATCH_EXPR@[915; 1201)
-                                MATCH_KW@[915; 920) "match"
-                                WHITESPACE@[920; 921) " "
-                                PAREN_EXPR@[921; 929)
-                                  L_PAREN@[921; 922) "("
-                                  RETURN_EXPR@[922; 928)
-                                    RETURN_KW@[922; 928) "return"
-                                  R_PAREN@[928; 929) ")"
-                                WHITESPACE@[929; 930) " "
-                                MATCH_ARM_LIST@[930; 1201)
-                                  L_CURLY@[930; 931) "{"
-                                  WHITESPACE@[931; 952) "\n                    "
-                                  MATCH_ARM@[952; 1147)
-                                    LITERAL_PAT@[952; 953)
-                                      LITERAL@[952; 953)
-                                        INT_NUMBER@[952; 953) "1"
-                                    WHITESPACE@[953; 954) " "
-                                    FAT_ARROW@[954; 956) "=>"
-                                    WHITESPACE@[956; 957) " "
-                                    BLOCK_EXPR@[957; 1147)
-                                      BLOCK@[957; 1147)
-                                        L_CURLY@[957; 958) "{"
-                                        WHITESPACE@[958; 983) "\n                     ..."
-                                        IF_EXPR@[983; 1125)
-                                          IF_KW@[983; 985) "if"
-                                          WHITESPACE@[985; 986) " "
-                                          CONDITION@[986; 994)
-                                            PAREN_EXPR@[986; 994)
-                                              L_PAREN@[986; 987) "("
-                                              RETURN_EXPR@[987; 993)
-                                                RETURN_KW@[987; 993) "return"
-                                              R_PAREN@[993; 994) ")"
-                                          WHITESPACE@[994; 995) " "
-                                          BLOCK_EXPR@[995; 1057)
-                                            BLOCK@[995; 1057)
-                                              L_CURLY@[995; 996) "{"
-                                              WHITESPACE@[996; 1025) "\n                     ..."
-                                              RETURN_EXPR@[1025; 1031)
-                                                RETURN_KW@[1025; 1031) "return"
-                                              WHITESPACE@[1031; 1056) "\n                     ..."
-                                              R_CURLY@[1056; 1057) "}"
-                                          WHITESPACE@[1057; 1058) " "
-                                          ELSE_KW@[1058; 1062) "else"
-                                          WHITESPACE@[1062; 1063) " "
-                                          BLOCK_EXPR@[1063; 1125)
-                                            BLOCK@[1063; 1125)
-                                              L_CURLY@[1063; 1064) "{"
-                                              WHITESPACE@[1064; 1093) "\n                     ..."
-                                              RETURN_EXPR@[1093; 1099)
-                                                RETURN_KW@[1093; 1099) "return"
-                                              WHITESPACE@[1099; 1124) "\n                     ..."
-                                              R_CURLY@[1124; 1125) "}"
-                                        WHITESPACE@[1125; 1146) "\n                    "
-                                        R_CURLY@[1146; 1147) "}"
-                                  WHITESPACE@[1147; 1168) "\n                    "
-                                  MATCH_ARM@[1168; 1183)
-                                    PLACEHOLDER_PAT@[1168; 1169)
-                                      UNDERSCORE@[1168; 1169) "_"
-                                    WHITESPACE@[1169; 1170) " "
-                                    FAT_ARROW@[1170; 1172) "=>"
-                                    WHITESPACE@[1172; 1173) " "
-                                    BLOCK_EXPR@[1173; 1183)
-                                      BLOCK@[1173; 1183)
-                                        L_CURLY@[1173; 1174) "{"
-                                        WHITESPACE@[1174; 1175) " "
-                                        RETURN_EXPR@[1175; 1181)
-                                          RETURN_KW@[1175; 1181) "return"
-                                        WHITESPACE@[1181; 1182) " "
-                                        R_CURLY@[1182; 1183) "}"
-                                  WHITESPACE@[1183; 1200) "\n                "
-                                  R_CURLY@[1200; 1201) "}"
-                              SEMICOLON@[1201; 1202) ";"
-                            WHITESPACE@[1202; 1215) "\n            "
-                            R_CURLY@[1215; 1216) "}"
-                        WHITESPACE@[1216; 1217) " "
-                        ELSE_KW@[1217; 1221) "else"
-                        WHITESPACE@[1221; 1222) " "
-                        IF_EXPR@[1222; 1273)
-                          IF_KW@[1222; 1224) "if"
-                          WHITESPACE@[1224; 1225) " "
-                          CONDITION@[1225; 1233)
-                            PAREN_EXPR@[1225; 1233)
-                              L_PAREN@[1225; 1226) "("
-                              RETURN_EXPR@[1226; 1232)
-                                RETURN_KW@[1226; 1232) "return"
-                              R_PAREN@[1232; 1233) ")"
-                          WHITESPACE@[1233; 1234) " "
-                          BLOCK_EXPR@[1234; 1273)
-                            BLOCK@[1234; 1273)
-                              L_CURLY@[1234; 1235) "{"
-                              WHITESPACE@[1235; 1252) "\n                "
-                              EXPR_STMT@[1252; 1259)
-                                RETURN_EXPR@[1252; 1258)
-                                  RETURN_KW@[1252; 1258) "return"
-                                SEMICOLON@[1258; 1259) ";"
-                              WHITESPACE@[1259; 1272) "\n            "
-                              R_CURLY@[1272; 1273) "}"
-                      WHITESPACE@[1273; 1282) "\n        "
-                      R_CURLY@[1282; 1283) "}"
-              WHITESPACE@[1283; 1292) "\n        "
-              IF_EXPR@[1292; 1314)
-                IF_KW@[1292; 1294) "if"
-                WHITESPACE@[1294; 1295) " "
-                CONDITION@[1295; 1303)
-                  PAREN_EXPR@[1295; 1303)
-                    L_PAREN@[1295; 1296) "("
-                    RETURN_EXPR@[1296; 1302)
-                      RETURN_KW@[1296; 1302) "return"
-                    R_PAREN@[1302; 1303) ")"
-                WHITESPACE@[1303; 1304) " "
-                BLOCK_EXPR@[1304; 1314)
-                  BLOCK@[1304; 1314)
-                    L_CURLY@[1304; 1305) "{"
-                    WHITESPACE@[1305; 1306) " "
-                    EXPR_STMT@[1306; 1312)
-                      BREAK_EXPR@[1306; 1311)
-                        BREAK_KW@[1306; 1311) "break"
-                      SEMICOLON@[1311; 1312) ";"
-                    WHITESPACE@[1312; 1313) " "
-                    R_CURLY@[1313; 1314) "}"
-              WHITESPACE@[1314; 1319) "\n    "
-              R_CURLY@[1319; 1320) "}"
-        WHITESPACE@[1320; 1321) "\n"
-        R_CURLY@[1321; 1322) "}"
-  WHITESPACE@[1322; 1324) "\n\n"
-  FN_DEF@[1324; 1539)
-    FN_KW@[1324; 1326) "fn"
-    WHITESPACE@[1326; 1327) " "
-    NAME@[1327; 1334)
-      IDENT@[1327; 1334) "notsure"
-    PARAM_LIST@[1334; 1336)
-      L_PAREN@[1334; 1335) "("
-      R_PAREN@[1335; 1336) ")"
-    WHITESPACE@[1336; 1337) " "
-    BLOCK_EXPR@[1337; 1539)
-      BLOCK@[1337; 1539)
-        L_CURLY@[1337; 1338) "{"
-        WHITESPACE@[1338; 1343) "\n    "
-        LET_STMT@[1343; 1361)
-          LET_KW@[1343; 1346) "let"
-          WHITESPACE@[1346; 1347) " "
-          BIND_PAT@[1347; 1353)
-            MUT_KW@[1347; 1350) "mut"
-            WHITESPACE@[1350; 1351) " "
-            NAME@[1351; 1353)
-              IDENT@[1351; 1353) "_x"
-          COLON@[1353; 1354) ":"
-          WHITESPACE@[1354; 1355) " "
-          PATH_TYPE@[1355; 1360)
-            PATH@[1355; 1360)
-              PATH_SEGMENT@[1355; 1360)
-                NAME_REF@[1355; 1360)
-                  IDENT@[1355; 1360) "isize"
-          SEMICOLON@[1360; 1361) ";"
-        WHITESPACE@[1361; 1366) "\n    "
-        LET_STMT@[1366; 1400)
-          LET_KW@[1366; 1369) "let"
-          WHITESPACE@[1369; 1370) " "
-          BIND_PAT@[1370; 1376)
-            MUT_KW@[1370; 1373) "mut"
-            WHITESPACE@[1373; 1374) " "
-            NAME@[1374; 1376)
-              IDENT@[1374; 1376) "_y"
-          WHITESPACE@[1376; 1377) " "
-          EQ@[1377; 1378) "="
-          WHITESPACE@[1378; 1379) " "
-          BIN_EXPR@[1379; 1399)
-            PAREN_EXPR@[1379; 1387)
-              L_PAREN@[1379; 1380) "("
-              BIN_EXPR@[1380; 1386)
-                PATH_EXPR@[1380; 1382)
-                  PATH@[1380; 1382)
-                    PATH_SEGMENT@[1380; 1382)
-                      NAME_REF@[1380; 1382)
-                        IDENT@[1380; 1382) "_x"
-                WHITESPACE@[1382; 1383) " "
-                EQ@[1383; 1384) "="
-                WHITESPACE@[1384; 1385) " "
-                LITERAL@[1385; 1386)
-                  INT_NUMBER@[1385; 1386) "0"
-              R_PAREN@[1386; 1387) ")"
-            WHITESPACE@[1387; 1388) " "
-            EQ2@[1388; 1390) "=="
-            WHITESPACE@[1390; 1391) " "
-            PAREN_EXPR@[1391; 1399)
-              L_PAREN@[1391; 1392) "("
-              BIN_EXPR@[1392; 1398)
-                PATH_EXPR@[1392; 1394)
-                  PATH@[1392; 1394)
-                    PATH_SEGMENT@[1392; 1394)
-                      NAME_REF@[1392; 1394)
-                        IDENT@[1392; 1394) "_x"
-                WHITESPACE@[1394; 1395) " "
-                EQ@[1395; 1396) "="
-                WHITESPACE@[1396; 1397) " "
-                LITERAL@[1397; 1398)
-                  INT_NUMBER@[1397; 1398) "0"
-              R_PAREN@[1398; 1399) ")"
-          SEMICOLON@[1399; 1400) ";"
-        WHITESPACE@[1400; 1405) "\n    "
-        LET_STMT@[1405; 1438)
-          LET_KW@[1405; 1408) "let"
-          WHITESPACE@[1408; 1409) " "
-          BIND_PAT@[1409; 1415)
-            MUT_KW@[1409; 1412) "mut"
-            WHITESPACE@[1412; 1413) " "
-            NAME@[1413; 1415)
-              IDENT@[1413; 1415) "_z"
-          WHITESPACE@[1415; 1416) " "
-          EQ@[1416; 1417) "="
-          WHITESPACE@[1417; 1418) " "
-          BIN_EXPR@[1418; 1437)
-            PAREN_EXPR@[1418; 1426)
-              L_PAREN@[1418; 1419) "("
-              BIN_EXPR@[1419; 1425)
-                PATH_EXPR@[1419; 1421)
-                  PATH@[1419; 1421)
-                    PATH_SEGMENT@[1419; 1421)
-                      NAME_REF@[1419; 1421)
-                        IDENT@[1419; 1421) "_x"
-                WHITESPACE@[1421; 1422) " "
-                EQ@[1422; 1423) "="
-                WHITESPACE@[1423; 1424) " "
-                LITERAL@[1424; 1425)
-                  INT_NUMBER@[1424; 1425) "0"
-              R_PAREN@[1425; 1426) ")"
-            WHITESPACE@[1426; 1427) " "
-            L_ANGLE@[1427; 1428) "<"
-            WHITESPACE@[1428; 1429) " "
-            PAREN_EXPR@[1429; 1437)
-              L_PAREN@[1429; 1430) "("
-              BIN_EXPR@[1430; 1436)
-                PATH_EXPR@[1430; 1432)
-                  PATH@[1430; 1432)
-                    PATH_SEGMENT@[1430; 1432)
-                      NAME_REF@[1430; 1432)
-                        IDENT@[1430; 1432) "_x"
-                WHITESPACE@[1432; 1433) " "
-                EQ@[1433; 1434) "="
-                WHITESPACE@[1434; 1435) " "
-                LITERAL@[1435; 1436)
-                  INT_NUMBER@[1435; 1436) "0"
-              R_PAREN@[1436; 1437) ")"
-          SEMICOLON@[1437; 1438) ";"
-        WHITESPACE@[1438; 1443) "\n    "
-        LET_STMT@[1443; 1474)
-          LET_KW@[1443; 1446) "let"
-          WHITESPACE@[1446; 1447) " "
-          BIND_PAT@[1447; 1449)
-            NAME@[1447; 1449)
-              IDENT@[1447; 1449) "_a"
-          WHITESPACE@[1449; 1450) " "
-          EQ@[1450; 1451) "="
-          WHITESPACE@[1451; 1452) " "
-          BIN_EXPR@[1452; 1473)
-            PAREN_EXPR@[1452; 1461)
-              L_PAREN@[1452; 1453) "("
-              BIN_EXPR@[1453; 1460)
-                PATH_EXPR@[1453; 1455)
-                  PATH@[1453; 1455)
-                    PATH_SEGMENT@[1453; 1455)
-                      NAME_REF@[1453; 1455)
-                        IDENT@[1453; 1455) "_x"
-                WHITESPACE@[1455; 1456) " "
-                PLUSEQ@[1456; 1458) "+="
-                WHITESPACE@[1458; 1459) " "
-                LITERAL@[1459; 1460)
-                  INT_NUMBER@[1459; 1460) "0"
-              R_PAREN@[1460; 1461) ")"
-            WHITESPACE@[1461; 1462) " "
-            EQ2@[1462; 1464) "=="
-            WHITESPACE@[1464; 1465) " "
-            PAREN_EXPR@[1465; 1473)
-              L_PAREN@[1465; 1466) "("
-              BIN_EXPR@[1466; 1472)
-                PATH_EXPR@[1466; 1468)
-                  PATH@[1466; 1468)
-                    PATH_SEGMENT@[1466; 1468)
-                      NAME_REF@[1466; 1468)
-                        IDENT@[1466; 1468) "_x"
-                WHITESPACE@[1468; 1469) " "
-                EQ@[1469; 1470) "="
-                WHITESPACE@[1470; 1471) " "
-                LITERAL@[1471; 1472)
-                  INT_NUMBER@[1471; 1472) "0"
-              R_PAREN@[1472; 1473) ")"
-          SEMICOLON@[1473; 1474) ";"
-        WHITESPACE@[1474; 1479) "\n    "
-        LET_STMT@[1479; 1537)
-          LET_KW@[1479; 1482) "let"
-          WHITESPACE@[1482; 1483) " "
-          BIND_PAT@[1483; 1485)
-            NAME@[1483; 1485)
-              IDENT@[1483; 1485) "_b"
-          WHITESPACE@[1485; 1486) " "
-          EQ@[1486; 1487) "="
-          WHITESPACE@[1487; 1488) " "
-          BIN_EXPR@[1488; 1536)
-            CALL_EXPR@[1488; 1510)
-              PATH_EXPR@[1488; 1492)
-                PATH@[1488; 1492)
-                  PATH_SEGMENT@[1488; 1492)
-                    NAME_REF@[1488; 1492)
-                      IDENT@[1488; 1492) "swap"
-              ARG_LIST@[1492; 1510)
-                L_PAREN@[1492; 1493) "("
-                REF_EXPR@[1493; 1500)
-                  AMP@[1493; 1494) "&"
-                  MUT_KW@[1494; 1497) "mut"
-                  WHITESPACE@[1497; 1498) " "
-                  PATH_EXPR@[1498; 1500)
-                    PATH@[1498; 1500)
-                      PATH_SEGMENT@[1498; 1500)
-                        NAME_REF@[1498; 1500)
-                          IDENT@[1498; 1500) "_y"
-                COMMA@[1500; 1501) ","
-                WHITESPACE@[1501; 1502) " "
-                REF_EXPR@[1502; 1509)
-                  AMP@[1502; 1503) "&"
-                  MUT_KW@[1503; 1506) "mut"
-                  WHITESPACE@[1506; 1507) " "
-                  PATH_EXPR@[1507; 1509)
-                    PATH@[1507; 1509)
-                      PATH_SEGMENT@[1507; 1509)
-                        NAME_REF@[1507; 1509)
-                          IDENT@[1507; 1509) "_z"
-                R_PAREN@[1509; 1510) ")"
-            WHITESPACE@[1510; 1511) " "
-            EQ2@[1511; 1513) "=="
-            WHITESPACE@[1513; 1514) " "
-            CALL_EXPR@[1514; 1536)
-              PATH_EXPR@[1514; 1518)
-                PATH@[1514; 1518)
-                  PATH_SEGMENT@[1514; 1518)
-                    NAME_REF@[1514; 1518)
-                      IDENT@[1514; 1518) "swap"
-              ARG_LIST@[1518; 1536)
-                L_PAREN@[1518; 1519) "("
-                REF_EXPR@[1519; 1526)
-                  AMP@[1519; 1520) "&"
-                  MUT_KW@[1520; 1523) "mut"
-                  WHITESPACE@[1523; 1524) " "
-                  PATH_EXPR@[1524; 1526)
-                    PATH@[1524; 1526)
-                      PATH_SEGMENT@[1524; 1526)
-                        NAME_REF@[1524; 1526)
-                          IDENT@[1524; 1526) "_y"
-                COMMA@[1526; 1527) ","
-                WHITESPACE@[1527; 1528) " "
-                REF_EXPR@[1528; 1535)
-                  AMP@[1528; 1529) "&"
-                  MUT_KW@[1529; 1532) "mut"
-                  WHITESPACE@[1532; 1533) " "
-                  PATH_EXPR@[1533; 1535)
-                    PATH@[1533; 1535)
-                      PATH_SEGMENT@[1533; 1535)
-                        NAME_REF@[1533; 1535)
-                          IDENT@[1533; 1535) "_z"
-                R_PAREN@[1535; 1536) ")"
-          SEMICOLON@[1536; 1537) ";"
-        WHITESPACE@[1537; 1538) "\n"
-        R_CURLY@[1538; 1539) "}"
-  WHITESPACE@[1539; 1541) "\n\n"
-  FN_DEF@[1541; 1741)
-    FN_KW@[1541; 1543) "fn"
-    WHITESPACE@[1543; 1544) " "
-    NAME@[1544; 1557)
-      IDENT@[1544; 1557) "canttouchthis"
-    PARAM_LIST@[1557; 1559)
-      L_PAREN@[1557; 1558) "("
-      R_PAREN@[1558; 1559) ")"
-    WHITESPACE@[1559; 1560) " "
-    RET_TYPE@[1560; 1568)
-      THIN_ARROW@[1560; 1562) "->"
-      WHITESPACE@[1562; 1563) " "
-      PATH_TYPE@[1563; 1568)
-        PATH@[1563; 1568)
-          PATH_SEGMENT@[1563; 1568)
-            NAME_REF@[1563; 1568)
-              IDENT@[1563; 1568) "usize"
-    WHITESPACE@[1568; 1569) " "
-    BLOCK_EXPR@[1569; 1741)
-      BLOCK@[1569; 1741)
-        L_CURLY@[1569; 1570) "{"
-        WHITESPACE@[1570; 1575) "\n    "
-        FN_DEF@[1575; 1598)
-          FN_KW@[1575; 1577) "fn"
-          WHITESPACE@[1577; 1578) " "
-          NAME@[1578; 1579)
-            IDENT@[1578; 1579) "p"
-          PARAM_LIST@[1579; 1581)
-            L_PAREN@[1579; 1580) "("
-            R_PAREN@[1580; 1581) ")"
-          WHITESPACE@[1581; 1582) " "
-          RET_TYPE@[1582; 1589)
-            THIN_ARROW@[1582; 1584) "->"
-            WHITESPACE@[1584; 1585) " "
-            PATH_TYPE@[1585; 1589)
-              PATH@[1585; 1589)
-                PATH_SEGMENT@[1585; 1589)
-                  NAME_REF@[1585; 1589)
-                    IDENT@[1585; 1589) "bool"
-          WHITESPACE@[1589; 1590) " "
-          BLOCK_EXPR@[1590; 1598)
-            BLOCK@[1590; 1598)
-              L_CURLY@[1590; 1591) "{"
-              WHITESPACE@[1591; 1592) " "
-              LITERAL@[1592; 1596)
-                TRUE_KW@[1592; 1596) "true"
-              WHITESPACE@[1596; 1597) " "
-              R_CURLY@[1597; 1598) "}"
-        WHITESPACE@[1598; 1603) "\n    "
-        LET_STMT@[1603; 1648)
-          LET_KW@[1603; 1606) "let"
-          WHITESPACE@[1606; 1607) " "
-          BIND_PAT@[1607; 1609)
-            NAME@[1607; 1609)
-              IDENT@[1607; 1609) "_a"
-          WHITESPACE@[1609; 1610) " "
-          EQ@[1610; 1611) "="
-          WHITESPACE@[1611; 1612) " "
-          PAREN_EXPR@[1612; 1647)
-            L_PAREN@[1612; 1613) "("
-            BIN_EXPR@[1613; 1646)
-              MACRO_CALL@[1613; 1628)
-                PATH@[1613; 1619)
-                  PATH_SEGMENT@[1613; 1619)
-                    NAME_REF@[1613; 1619)
-                      IDENT@[1613; 1619) "assert"
-                BANG@[1619; 1620) "!"
-                TOKEN_TREE@[1620; 1628)
-                  L_PAREN@[1620; 1621) "("
-                  TOKEN_TREE@[1621; 1627)
-                    L_PAREN@[1621; 1622) "("
-                    TRUE_KW@[1622; 1626) "true"
-                    R_PAREN@[1626; 1627) ")"
-                  R_PAREN@[1627; 1628) ")"
-              WHITESPACE@[1628; 1629) " "
-              EQ2@[1629; 1631) "=="
-              WHITESPACE@[1631; 1632) " "
-              PAREN_EXPR@[1632; 1646)
-                L_PAREN@[1632; 1633) "("
-                MACRO_CALL@[1633; 1645)
-                  PATH@[1633; 1639)
-                    PATH_SEGMENT@[1633; 1639)
-                      NAME_REF@[1633; 1639)
-                        IDENT@[1633; 1639) "assert"
-                  BANG@[1639; 1640) "!"
-                  TOKEN_TREE@[1640; 1645)
-                    L_PAREN@[1640; 1641) "("
-                    IDENT@[1641; 1642) "p"
-                    TOKEN_TREE@[1642; 1644)
-                      L_PAREN@[1642; 1643) "("
-                      R_PAREN@[1643; 1644) ")"
-                    R_PAREN@[1644; 1645) ")"
-                R_PAREN@[1645; 1646) ")"
-            R_PAREN@[1646; 1647) ")"
-          SEMICOLON@[1647; 1648) ";"
-        WHITESPACE@[1648; 1653) "\n    "
-        LET_STMT@[1653; 1685)
-          LET_KW@[1653; 1656) "let"
-          WHITESPACE@[1656; 1657) " "
-          BIND_PAT@[1657; 1659)
-            NAME@[1657; 1659)
-              IDENT@[1657; 1659) "_c"
-          WHITESPACE@[1659; 1660) " "
-          EQ@[1660; 1661) "="
-          WHITESPACE@[1661; 1662) " "
-          PAREN_EXPR@[1662; 1684)
-            L_PAREN@[1662; 1663) "("
-            BIN_EXPR@[1663; 1683)
-              MACRO_CALL@[1663; 1677)
-                PATH@[1663; 1669)
-                  PATH_SEGMENT@[1663; 1669)
-                    NAME_REF@[1663; 1669)
-                      IDENT@[1663; 1669) "assert"
-                BANG@[1669; 1670) "!"
-                TOKEN_TREE@[1670; 1677)
-                  L_PAREN@[1670; 1671) "("
-                  TOKEN_TREE@[1671; 1676)
-                    L_PAREN@[1671; 1672) "("
-                    IDENT@[1672; 1673) "p"
-                    TOKEN_TREE@[1673; 1675)
-                      L_PAREN@[1673; 1674) "("
-                      R_PAREN@[1674; 1675) ")"
-                    R_PAREN@[1675; 1676) ")"
-                  R_PAREN@[1676; 1677) ")"
-              WHITESPACE@[1677; 1678) " "
-              EQ2@[1678; 1680) "=="
-              WHITESPACE@[1680; 1681) " "
-              TUPLE_EXPR@[1681; 1683)
-                L_PAREN@[1681; 1682) "("
-                R_PAREN@[1682; 1683) ")"
-            R_PAREN@[1683; 1684) ")"
-          SEMICOLON@[1684; 1685) ";"
-        WHITESPACE@[1685; 1690) "\n    "
-        LET_STMT@[1690; 1739)
-          LET_KW@[1690; 1693) "let"
-          WHITESPACE@[1693; 1694) " "
-          BIND_PAT@[1694; 1696)
-            NAME@[1694; 1696)
-              IDENT@[1694; 1696) "_b"
-          COLON@[1696; 1697) ":"
-          WHITESPACE@[1697; 1698) " "
-          PATH_TYPE@[1698; 1702)
-            PATH@[1698; 1702)
-              PATH_SEGMENT@[1698; 1702)
-                NAME_REF@[1698; 1702)
-                  IDENT@[1698; 1702) "bool"
-          WHITESPACE@[1702; 1703) " "
-          EQ@[1703; 1704) "="
-          WHITESPACE@[1704; 1705) " "
-          PAREN_EXPR@[1705; 1738)
-            L_PAREN@[1705; 1706) "("
-            BIN_EXPR@[1706; 1737)
-              MACRO_CALL@[1706; 1723)
-                PATH@[1706; 1713)
-                  PATH_SEGMENT@[1706; 1713)
-                    NAME_REF@[1706; 1713)
-                      IDENT@[1706; 1713) "println"
-                BANG@[1713; 1714) "!"
-                TOKEN_TREE@[1714; 1723)
-                  L_PAREN@[1714; 1715) "("
-                  STRING@[1715; 1719) "\"{}\""
-                  COMMA@[1719; 1720) ","
-                  WHITESPACE@[1720; 1721) " "
-                  INT_NUMBER@[1721; 1722) "0"
-                  R_PAREN@[1722; 1723) ")"
-              WHITESPACE@[1723; 1724) " "
-              EQ2@[1724; 1726) "=="
-              WHITESPACE@[1726; 1727) " "
-              PAREN_EXPR@[1727; 1737)
-                L_PAREN@[1727; 1728) "("
-                RETURN_EXPR@[1728; 1736)
-                  RETURN_KW@[1728; 1734) "return"
-                  WHITESPACE@[1734; 1735) " "
-                  LITERAL@[1735; 1736)
-                    INT_NUMBER@[1735; 1736) "0"
-                R_PAREN@[1736; 1737) ")"
-            R_PAREN@[1737; 1738) ")"
-          SEMICOLON@[1738; 1739) ";"
-        WHITESPACE@[1739; 1740) "\n"
-        R_CURLY@[1740; 1741) "}"
-  WHITESPACE@[1741; 1743) "\n\n"
-  FN_DEF@[1743; 1904)
-    FN_KW@[1743; 1745) "fn"
-    WHITESPACE@[1745; 1746) " "
-    NAME@[1746; 1755)
-      IDENT@[1746; 1755) "angrydome"
-    PARAM_LIST@[1755; 1757)
-      L_PAREN@[1755; 1756) "("
-      R_PAREN@[1756; 1757) ")"
-    WHITESPACE@[1757; 1758) " "
-    BLOCK_EXPR@[1758; 1904)
-      BLOCK@[1758; 1904)
-        L_CURLY@[1758; 1759) "{"
-        WHITESPACE@[1759; 1764) "\n    "
-        EXPR_STMT@[1764; 1785)
-          LOOP_EXPR@[1764; 1785)
-            LOOP_KW@[1764; 1768) "loop"
-            WHITESPACE@[1768; 1769) " "
-            BLOCK_EXPR@[1769; 1785)
-              BLOCK@[1769; 1785)
-                L_CURLY@[1769; 1770) "{"
-                WHITESPACE@[1770; 1771) " "
-                IF_EXPR@[1771; 1783)
-                  IF_KW@[1771; 1773) "if"
-                  WHITESPACE@[1773; 1774) " "
-                  CONDITION@[1774; 1779)
-                    BREAK_EXPR@[1774; 1779)
-                      BREAK_KW@[1774; 1779) "break"
-                  WHITESPACE@[1779; 1780) " "
-                  BLOCK_EXPR@[1780; 1783)
-                    BLOCK@[1780; 1783)
-                      L_CURLY@[1780; 1781) "{"
-                      WHITESPACE@[1781; 1782) " "
-                      R_CURLY@[1782; 1783) "}"
-                WHITESPACE@[1783; 1784) " "
-                R_CURLY@[1784; 1785) "}"
-        WHITESPACE@[1785; 1790) "\n    "
-        LET_STMT@[1790; 1804)
-          LET_KW@[1790; 1793) "let"
-          WHITESPACE@[1793; 1794) " "
-          BIND_PAT@[1794; 1799)
-            MUT_KW@[1794; 1797) "mut"
-            WHITESPACE@[1797; 1798) " "
-            NAME@[1798; 1799)
-              IDENT@[1798; 1799) "i"
-          WHITESPACE@[1799; 1800) " "
-          EQ@[1800; 1801) "="
-          WHITESPACE@[1801; 1802) " "
-          LITERAL@[1802; 1803)
-            INT_NUMBER@[1802; 1803) "0"
-          SEMICOLON@[1803; 1804) ";"
-        WHITESPACE@[1804; 1809) "\n    "
-        LOOP_EXPR@[1809; 1902)
-          LOOP_KW@[1809; 1813) "loop"
-          WHITESPACE@[1813; 1814) " "
-          BLOCK_EXPR@[1814; 1902)
-            BLOCK@[1814; 1902)
-              L_CURLY@[1814; 1815) "{"
-              WHITESPACE@[1815; 1816) " "
-              EXPR_STMT@[1816; 1823)
-                BIN_EXPR@[1816; 1822)
-                  PATH_EXPR@[1816; 1817)
-                    PATH@[1816; 1817)
-                      PATH_SEGMENT@[1816; 1817)
-                        NAME_REF@[1816; 1817)
-                          IDENT@[1816; 1817) "i"
-                  WHITESPACE@[1817; 1818) " "
-                  PLUSEQ@[1818; 1820) "+="
-                  WHITESPACE@[1820; 1821) " "
-                  LITERAL@[1821; 1822)
-                    INT_NUMBER@[1821; 1822) "1"
-                SEMICOLON@[1822; 1823) ";"
-              WHITESPACE@[1823; 1824) " "
-              EXPR_STMT@[1824; 1887)
-                IF_EXPR@[1824; 1887)
-                  IF_KW@[1824; 1826) "if"
-                  WHITESPACE@[1826; 1827) " "
-                  CONDITION@[1827; 1833)
-                    BIN_EXPR@[1827; 1833)
-                      PATH_EXPR@[1827; 1828)
-                        PATH@[1827; 1828)
-                          PATH_SEGMENT@[1827; 1828)
-                            NAME_REF@[1827; 1828)
-                              IDENT@[1827; 1828) "i"
-                      WHITESPACE@[1828; 1829) " "
-                      EQ2@[1829; 1831) "=="
-                      WHITESPACE@[1831; 1832) " "
-                      LITERAL@[1832; 1833)
-                        INT_NUMBER@[1832; 1833) "1"
-                  WHITESPACE@[1833; 1834) " "
-                  BLOCK_EXPR@[1834; 1887)
-                    BLOCK@[1834; 1887)
-                      L_CURLY@[1834; 1835) "{"
-                      WHITESPACE@[1835; 1836) " "
-                      MATCH_EXPR@[1836; 1885)
-                        MATCH_KW@[1836; 1841) "match"
-                        WHITESPACE@[1841; 1842) " "
-                        PAREN_EXPR@[1842; 1852)
-                          L_PAREN@[1842; 1843) "("
-                          CONTINUE_EXPR@[1843; 1851)
-                            CONTINUE_KW@[1843; 1851) "continue"
-                          R_PAREN@[1851; 1852) ")"
-                        WHITESPACE@[1852; 1853) " "
-                        MATCH_ARM_LIST@[1853; 1885)
-                          L_CURLY@[1853; 1854) "{"
-                          WHITESPACE@[1854; 1855) " "
-                          MATCH_ARM@[1855; 1863)
-                            LITERAL_PAT@[1855; 1856)
-                              LITERAL@[1855; 1856)
-                                INT_NUMBER@[1855; 1856) "1"
-                            WHITESPACE@[1856; 1857) " "
-                            FAT_ARROW@[1857; 1859) "=>"
-                            WHITESPACE@[1859; 1860) " "
-                            BLOCK_EXPR@[1860; 1863)
-                              BLOCK@[1860; 1863)
-                                L_CURLY@[1860; 1861) "{"
-                                WHITESPACE@[1861; 1862) " "
-                                R_CURLY@[1862; 1863) "}"
-                          COMMA@[1863; 1864) ","
-                          WHITESPACE@[1864; 1865) " "
-                          MATCH_ARM@[1865; 1883)
-                            PLACEHOLDER_PAT@[1865; 1866)
-                              UNDERSCORE@[1865; 1866) "_"
-                            WHITESPACE@[1866; 1867) " "
-                            FAT_ARROW@[1867; 1869) "=>"
-                            WHITESPACE@[1869; 1870) " "
-                            MACRO_CALL@[1870; 1883)
-                              PATH@[1870; 1875)
-                                PATH_SEGMENT@[1870; 1875)
-                                  NAME_REF@[1870; 1875)
-                                    IDENT@[1870; 1875) "panic"
-                              BANG@[1875; 1876) "!"
-                              TOKEN_TREE@[1876; 1883)
-                                L_PAREN@[1876; 1877) "("
-                                STRING@[1877; 1882) "\"wat\""
-                                R_PAREN@[1882; 1883) ")"
-                          WHITESPACE@[1883; 1884) " "
-                          R_CURLY@[1884; 1885) "}"
-                      WHITESPACE@[1885; 1886) " "
-                      R_CURLY@[1886; 1887) "}"
-              WHITESPACE@[1887; 1894) "\n      "
-              EXPR_STMT@[1894; 1900)
-                BREAK_EXPR@[1894; 1899)
-                  BREAK_KW@[1894; 1899) "break"
-                SEMICOLON@[1899; 1900) ";"
-              WHITESPACE@[1900; 1901) " "
-              R_CURLY@[1901; 1902) "}"
-        WHITESPACE@[1902; 1903) "\n"
-        R_CURLY@[1903; 1904) "}"
-  WHITESPACE@[1904; 1906) "\n\n"
-  FN_DEF@[1906; 1960)
-    FN_KW@[1906; 1908) "fn"
-    WHITESPACE@[1908; 1909) " "
-    NAME@[1909; 1921)
-      IDENT@[1909; 1921) "evil_lincoln"
-    PARAM_LIST@[1921; 1923)
-      L_PAREN@[1921; 1922) "("
-      R_PAREN@[1922; 1923) ")"
-    WHITESPACE@[1923; 1924) " "
-    BLOCK_EXPR@[1924; 1960)
-      BLOCK@[1924; 1960)
-        L_CURLY@[1924; 1925) "{"
-        WHITESPACE@[1925; 1926) " "
-        LET_STMT@[1926; 1958)
-          LET_KW@[1926; 1929) "let"
-          WHITESPACE@[1929; 1930) " "
-          BIND_PAT@[1930; 1935)
-            NAME@[1930; 1935)
-              IDENT@[1930; 1935) "_evil"
-          WHITESPACE@[1935; 1936) " "
-          EQ@[1936; 1937) "="
-          WHITESPACE@[1937; 1938) " "
-          MACRO_CALL@[1938; 1957)
-            PATH@[1938; 1945)
-              PATH_SEGMENT@[1938; 1945)
-                NAME_REF@[1938; 1945)
-                  IDENT@[1938; 1945) "println"
-            BANG@[1945; 1946) "!"
-            TOKEN_TREE@[1946; 1957)
-              L_PAREN@[1946; 1947) "("
-              STRING@[1947; 1956) "\"lincoln\""
-              R_PAREN@[1956; 1957) ")"
-          SEMICOLON@[1957; 1958) ";"
-        WHITESPACE@[1958; 1959) " "
-        R_CURLY@[1959; 1960) "}"
-  WHITESPACE@[1960; 1962) "\n\n"
-  FN_DEF@[1962; 2198)
-    FN_KW@[1962; 1964) "fn"
-    WHITESPACE@[1964; 1965) " "
-    NAME@[1965; 1969)
-      IDENT@[1965; 1969) "dots"
-    PARAM_LIST@[1969; 1971)
-      L_PAREN@[1969; 1970) "("
-      R_PAREN@[1970; 1971) ")"
-    WHITESPACE@[1971; 1972) " "
-    BLOCK_EXPR@[1972; 2198)
-      BLOCK@[1972; 2198)
-        L_CURLY@[1972; 1973) "{"
-        WHITESPACE@[1973; 1978) "\n    "
-        EXPR_STMT@[1978; 2196)
-          MACRO_CALL@[1978; 2195)
-            PATH@[1978; 1987)
-              PATH_SEGMENT@[1978; 1987)
-                NAME_REF@[1978; 1987)
-                  IDENT@[1978; 1987) "assert_eq"
-            BANG@[1987; 1988) "!"
-            TOKEN_TREE@[1988; 2195)
-              L_PAREN@[1988; 1989) "("
-              IDENT@[1989; 1995) "String"
-              COLON@[1995; 1996) ":"
-              COLON@[1996; 1997) ":"
-              IDENT@[1997; 2001) "from"
-              TOKEN_TREE@[2001; 2055)
-                L_PAREN@[2001; 2002) "("
-                STRING@[2002; 2054) "\".................... ..."
-                R_PAREN@[2054; 2055) ")"
-              COMMA@[2055; 2056) ","
-              WHITESPACE@[2056; 2072) "\n               "
-              IDENT@[2072; 2078) "format"
-              BANG@[2078; 2079) "!"
-              TOKEN_TREE@[2079; 2194)
-                L_PAREN@[2079; 2080) "("
-                STRING@[2080; 2086) "\"{:?}\""
-                COMMA@[2086; 2087) ","
-                WHITESPACE@[2087; 2088) " "
-                DOT@[2088; 2089) "."
-                DOT@[2089; 2090) "."
-                WHITESPACE@[2090; 2091) " "
-                DOT@[2091; 2092) "."
-                DOT@[2092; 2093) "."
-                WHITESPACE@[2093; 2094) " "
-                DOT@[2094; 2095) "."
-                DOT@[2095; 2096) "."
-                WHITESPACE@[2096; 2097) " "
-                DOT@[2097; 2098) "."
-                DOT@[2098; 2099) "."
-                WHITESPACE@[2099; 2100) " "
-                DOT@[2100; 2101) "."
-                DOT@[2101; 2102) "."
-                WHITESPACE@[2102; 2103) " "
-                DOT@[2103; 2104) "."
-                DOT@[2104; 2105) "."
-                WHITESPACE@[2105; 2106) " "
-                DOT@[2106; 2107) "."
-                DOT@[2107; 2108) "."
-                WHITESPACE@[2108; 2109) " "
-                DOT@[2109; 2110) "."
-                DOT@[2110; 2111) "."
-                WHITESPACE@[2111; 2112) " "
-                DOT@[2112; 2113) "."
-                DOT@[2113; 2114) "."
-                WHITESPACE@[2114; 2115) " "
-                DOT@[2115; 2116) "."
-                DOT@[2116; 2117) "."
-                WHITESPACE@[2117; 2118) " "
-                DOT@[2118; 2119) "."
-                DOT@[2119; 2120) "."
-                WHITESPACE@[2120; 2121) " "
-                DOT@[2121; 2122) "."
-                DOT@[2122; 2123) "."
-                WHITESPACE@[2123; 2124) " "
-                DOT@[2124; 2125) "."
-                DOT@[2125; 2126) "."
-                WHITESPACE@[2126; 2158) "\n                     ..."
-                DOT@[2158; 2159) "."
-                DOT@[2159; 2160) "."
-                WHITESPACE@[2160; 2161) " "
-                DOT@[2161; 2162) "."
-                DOT@[2162; 2163) "."
-                WHITESPACE@[2163; 2164) " "
-                DOT@[2164; 2165) "."
-                DOT@[2165; 2166) "."
-                WHITESPACE@[2166; 2167) " "
-                DOT@[2167; 2168) "."
-                DOT@[2168; 2169) "."
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-      BLOCK@[3568; 3812)
-        L_CURLY@[3568; 3569) "{"
-        WHITESPACE@[3569; 3574) "\n    "
-        EXPR_STMT@[3574; 3584)
-          CALL_EXPR@[3574; 3583)
-            PATH_EXPR@[3574; 3581)
-              PATH@[3574; 3581)
-                PATH_SEGMENT@[3574; 3581)
-                  NAME_REF@[3574; 3581)
-                    IDENT@[3574; 3581) "strange"
-            ARG_LIST@[3581; 3583)
-              L_PAREN@[3581; 3582) "("
-              R_PAREN@[3582; 3583) ")"
-          SEMICOLON@[3583; 3584) ";"
-        WHITESPACE@[3584; 3589) "\n    "
-        EXPR_STMT@[3589; 3597)
-          CALL_EXPR@[3589; 3596)
-            PATH_EXPR@[3589; 3594)
-              PATH@[3589; 3594)
-                PATH_SEGMENT@[3589; 3594)
-                  NAME_REF@[3589; 3594)
-                    IDENT@[3589; 3594) "funny"
-            ARG_LIST@[3594; 3596)
-              L_PAREN@[3594; 3595) "("
-              R_PAREN@[3595; 3596) ")"
-          SEMICOLON@[3596; 3597) ";"
-        WHITESPACE@[3597; 3602) "\n    "
-        EXPR_STMT@[3602; 3609)
-          CALL_EXPR@[3602; 3608)
-            PATH_EXPR@[3602; 3606)
-              PATH@[3602; 3606)
-                PATH_SEGMENT@[3602; 3606)
-                  NAME_REF@[3602; 3606)
-                    IDENT@[3602; 3606) "what"
-            ARG_LIST@[3606; 3608)
-              L_PAREN@[3606; 3607) "("
-              R_PAREN@[3607; 3608) ")"
-          SEMICOLON@[3608; 3609) ";"
-        WHITESPACE@[3609; 3614) "\n    "
-        EXPR_STMT@[3614; 3628)
-          CALL_EXPR@[3614; 3627)
-            PATH_EXPR@[3614; 3625)
-              PATH@[3614; 3625)
-                PATH_SEGMENT@[3614; 3625)
-                  NAME_REF@[3614; 3625)
-                    IDENT@[3614; 3625) "zombiejesus"
-            ARG_LIST@[3625; 3627)
-              L_PAREN@[3625; 3626) "("
-              R_PAREN@[3626; 3627) ")"
-          SEMICOLON@[3627; 3628) ";"
-        WHITESPACE@[3628; 3633) "\n    "
-        EXPR_STMT@[3633; 3643)
-          CALL_EXPR@[3633; 3642)
-            PATH_EXPR@[3633; 3640)
-              PATH@[3633; 3640)
-                PATH_SEGMENT@[3633; 3640)
-                  NAME_REF@[3633; 3640)
-                    IDENT@[3633; 3640) "notsure"
-            ARG_LIST@[3640; 3642)
-              L_PAREN@[3640; 3641) "("
-              R_PAREN@[3641; 3642) ")"
-          SEMICOLON@[3642; 3643) ";"
-        WHITESPACE@[3643; 3648) "\n    "
-        EXPR_STMT@[3648; 3664)
-          CALL_EXPR@[3648; 3663)
-            PATH_EXPR@[3648; 3661)
-              PATH@[3648; 3661)
-                PATH_SEGMENT@[3648; 3661)
-                  NAME_REF@[3648; 3661)
-                    IDENT@[3648; 3661) "canttouchthis"
-            ARG_LIST@[3661; 3663)
-              L_PAREN@[3661; 3662) "("
-              R_PAREN@[3662; 3663) ")"
-          SEMICOLON@[3663; 3664) ";"
-        WHITESPACE@[3664; 3669) "\n    "
-        EXPR_STMT@[3669; 3681)
-          CALL_EXPR@[3669; 3680)
-            PATH_EXPR@[3669; 3678)
-              PATH@[3669; 3678)
-                PATH_SEGMENT@[3669; 3678)
-                  NAME_REF@[3669; 3678)
-                    IDENT@[3669; 3678) "angrydome"
-            ARG_LIST@[3678; 3680)
-              L_PAREN@[3678; 3679) "("
-              R_PAREN@[3679; 3680) ")"
-          SEMICOLON@[3680; 3681) ";"
-        WHITESPACE@[3681; 3686) "\n    "
-        EXPR_STMT@[3686; 3701)
-          CALL_EXPR@[3686; 3700)
-            PATH_EXPR@[3686; 3698)
-              PATH@[3686; 3698)
-                PATH_SEGMENT@[3686; 3698)
-                  NAME_REF@[3686; 3698)
-                    IDENT@[3686; 3698) "evil_lincoln"
-            ARG_LIST@[3698; 3700)
-              L_PAREN@[3698; 3699) "("
-              R_PAREN@[3699; 3700) ")"
-          SEMICOLON@[3700; 3701) ";"
-        WHITESPACE@[3701; 3706) "\n    "
-        EXPR_STMT@[3706; 3713)
-          CALL_EXPR@[3706; 3712)
-            PATH_EXPR@[3706; 3710)
-              PATH@[3706; 3710)
-                PATH_SEGMENT@[3706; 3710)
-                  NAME_REF@[3706; 3710)
-                    IDENT@[3706; 3710) "dots"
-            ARG_LIST@[3710; 3712)
-              L_PAREN@[3710; 3711) "("
-              R_PAREN@[3711; 3712) ")"
-          SEMICOLON@[3712; 3713) ";"
-        WHITESPACE@[3713; 3718) "\n    "
-        EXPR_STMT@[3718; 3726)
-          CALL_EXPR@[3718; 3725)
-            PATH_EXPR@[3718; 3720)
-              PATH@[3718; 3720)
-                PATH_SEGMENT@[3718; 3720)
-                  NAME_REF@[3718; 3720)
-                    IDENT@[3718; 3720) "u8"
-            ARG_LIST@[3720; 3725)
-              L_PAREN@[3720; 3721) "("
-              LITERAL@[3721; 3724)
-                INT_NUMBER@[3721; 3724) "8u8"
-              R_PAREN@[3724; 3725) ")"
-          SEMICOLON@[3725; 3726) ";"
-        WHITESPACE@[3726; 3731) "\n    "
-        EXPR_STMT@[3731; 3739)
-          CALL_EXPR@[3731; 3738)
-            PATH_EXPR@[3731; 3736)
-              PATH@[3731; 3736)
-                PATH_SEGMENT@[3731; 3736)
-                  NAME_REF@[3731; 3736)
-                    IDENT@[3731; 3736) "fishy"
-            ARG_LIST@[3736; 3738)
-              L_PAREN@[3736; 3737) "("
-              R_PAREN@[3737; 3738) ")"
-          SEMICOLON@[3738; 3739) ";"
-        WHITESPACE@[3739; 3744) "\n    "
-        EXPR_STMT@[3744; 3752)
-          CALL_EXPR@[3744; 3751)
-            PATH_EXPR@[3744; 3749)
-              PATH@[3744; 3749)
-                PATH_SEGMENT@[3744; 3749)
-                  NAME_REF@[3744; 3749)
-                    IDENT@[3744; 3749) "union"
-            ARG_LIST@[3749; 3751)
-              L_PAREN@[3749; 3750) "("
-              R_PAREN@[3750; 3751) ")"
-          SEMICOLON@[3751; 3752) ";"
-        WHITESPACE@[3752; 3757) "\n    "
-        EXPR_STMT@[3757; 3778)
-          CALL_EXPR@[3757; 3777)
-            PATH_EXPR@[3757; 3775)
-              PATH@[3757; 3775)
-                PATH_SEGMENT@[3757; 3775)
-                  NAME_REF@[3757; 3775)
-                    IDENT@[3757; 3775) "special_characters"
-            ARG_LIST@[3775; 3777)
-              L_PAREN@[3775; 3776) "("
-              R_PAREN@[3776; 3777) ")"
-          SEMICOLON@[3777; 3778) ";"
-        WHITESPACE@[3778; 3783) "\n    "
-        EXPR_STMT@[3783; 3796)
-          CALL_EXPR@[3783; 3795)
-            PATH_EXPR@[3783; 3793)
-              PATH@[3783; 3793)
-                PATH_SEGMENT@[3783; 3793)
-                  NAME_REF@[3783; 3793)
-                    IDENT@[3783; 3793) "punch_card"
-            ARG_LIST@[3793; 3795)
-              L_PAREN@[3793; 3794) "("
-              R_PAREN@[3794; 3795) ")"
-          SEMICOLON@[3795; 3796) ";"
-        WHITESPACE@[3796; 3801) "\n    "
-        EXPR_STMT@[3801; 3810)
-          CALL_EXPR@[3801; 3809)
-            PATH_EXPR@[3801; 3807)
-              PATH@[3801; 3807)
-                PATH_SEGMENT@[3801; 3807)
-                  NAME_REF@[3801; 3807)
-                    IDENT@[3801; 3807) "ktulhu"
-            ARG_LIST@[3807; 3809)
-              L_PAREN@[3807; 3808) "("
-              R_PAREN@[3808; 3809) ")"
-          SEMICOLON@[3809; 3810) ";"
-        WHITESPACE@[3810; 3811) "\n"
-        R_CURLY@[3811; 3812) "}"
-  WHITESPACE@[3812; 3813) "\n"
+SOURCE_FILE@0..3813
+  COMMENT@0..55 "//! Adapted from a `r ..."
+  WHITESPACE@55..56 "\n"
+  COMMENT@56..173 "//! https://github.co ..."
+  WHITESPACE@173..174 "\n"
+  COMMENT@174..178 "//! "
+  WHITESPACE@178..179 "\n"
+  COMMENT@179..269 "//! Reported to rust- ..."
+  WHITESPACE@269..271 "\n\n"
+  ATTR@271..302
+    POUND@271..272 "#"
+    BANG@272..273 "!"
+    L_BRACK@273..274 "["
+    PATH@274..279
+      PATH_SEGMENT@274..279
+        NAME_REF@274..279
+          IDENT@274..279 "allow"
+    TOKEN_TREE@279..301
+      L_PAREN@279..280 "("
+      IDENT@280..300 "non_camel_case_types"
+      R_PAREN@300..301 ")"
+    R_BRACK@301..302 "]"
+  WHITESPACE@302..303 "\n"
+  ATTR@303..323
+    POUND@303..304 "#"
+    BANG@304..305 "!"
+    L_BRACK@305..306 "["
+    PATH@306..311
+      PATH_SEGMENT@306..311
+        NAME_REF@306..311
+          IDENT@306..311 "allow"
+    TOKEN_TREE@311..322
+      L_PAREN@311..312 "("
+      IDENT@312..321 "dead_code"
+      R_PAREN@321..322 ")"
+    R_BRACK@322..323 "]"
+  WHITESPACE@323..324 "\n"
+  ATTR@324..351
+    POUND@324..325 "#"
+    BANG@325..326 "!"
+    L_BRACK@326..327 "["
+    PATH@327..332
+      PATH_SEGMENT@327..332
+        NAME_REF@327..332
+          IDENT@327..332 "allow"
+    TOKEN_TREE@332..350
+      L_PAREN@332..333 "("
+      IDENT@333..349 "unreachable_code"
+      R_PAREN@349..350 ")"
+    R_BRACK@350..351 "]"
+  WHITESPACE@351..352 "\n"
+  ATTR@352..376
+    POUND@352..353 "#"
+    BANG@353..354 "!"
+    L_BRACK@354..355 "["
+    PATH@355..360
+      PATH_SEGMENT@355..360
+        NAME_REF@355..360
+          IDENT@355..360 "allow"
+    TOKEN_TREE@360..375
+      L_PAREN@360..361 "("
+      IDENT@361..374 "unused_parens"
+      R_PAREN@374..375 ")"
+    R_BRACK@375..376 "]"
+  WHITESPACE@376..378 "\n\n"
+  ATTR@378..405
+    POUND@378..379 "#"
+    BANG@379..380 "!"
+    L_BRACK@380..381 "["
+    PATH@381..396
+      PATH_SEGMENT@381..396
+        NAME_REF@381..396
+          IDENT@381..396 "recursion_limit"
+    WHITESPACE@396..397 " "
+    EQ@397..398 "="
+    WHITESPACE@398..399 " "
+    LITERAL@399..404
+      STRING@399..404 "\"128\""
+    R_BRACK@404..405 "]"
+  WHITESPACE@405..407 "\n\n"
+  USE_ITEM@407..427
+    USE_KW@407..410 "use"
+    WHITESPACE@410..411 " "
+    USE_TREE@411..426
+      PATH@411..426
+        PATH@411..420
+          PATH@411..414
+            PATH_SEGMENT@411..414
+              NAME_REF@411..414
+                IDENT@411..414 "std"
+          COLON2@414..416 "::"
+          PATH_SEGMENT@416..420
+            NAME_REF@416..420
+              IDENT@416..420 "cell"
+        COLON2@420..422 "::"
+        PATH_SEGMENT@422..426
+          NAME_REF@422..426
+            IDENT@422..426 "Cell"
+    SEMICOLON@426..427 ";"
+  WHITESPACE@427..428 "\n"
+  USE_ITEM@428..447
+    USE_KW@428..431 "use"
+    WHITESPACE@431..432 " "
+    USE_TREE@432..446
+      PATH@432..446
+        PATH@432..440
+          PATH@432..435
+            PATH_SEGMENT@432..435
+              NAME_REF@432..435
+                IDENT@432..435 "std"
+          COLON2@435..437 "::"
+          PATH_SEGMENT@437..440
+            NAME_REF@437..440
+              IDENT@437..440 "mem"
+        COLON2@440..442 "::"
+        PATH_SEGMENT@442..446
+          NAME_REF@442..446
+            IDENT@442..446 "swap"
+    SEMICOLON@446..447 ";"
+  WHITESPACE@447..449 "\n\n"
+  COMMENT@449..518 "// Just a grab bag of ..."
+  WHITESPACE@518..520 "\n\n"
+  FN_DEF@520..572
+    FN_KW@520..522 "fn"
+    WHITESPACE@522..523 " "
+    NAME@523..530
+      IDENT@523..530 "strange"
+    PARAM_LIST@530..532
+      L_PAREN@530..531 "("
+      R_PAREN@531..532 ")"
+    WHITESPACE@532..533 " "
+    RET_TYPE@533..540
+      THIN_ARROW@533..535 "->"
+      WHITESPACE@535..536 " "
+      PATH_TYPE@536..540
+        PATH@536..540
+          PATH_SEGMENT@536..540
+            NAME_REF@536..540
+              IDENT@536..540 "bool"
+    WHITESPACE@540..541 " "
+    BLOCK_EXPR@541..572
+      BLOCK@541..572
+        L_CURLY@541..542 "{"
+        WHITESPACE@542..543 " "
+        LET_STMT@543..570
+          LET_KW@543..546 "let"
+          WHITESPACE@546..547 " "
+          BIND_PAT@547..549
+            NAME@547..549
+              IDENT@547..549 "_x"
+          COLON@549..550 ":"
+          WHITESPACE@550..551 " "
+          PATH_TYPE@551..555
+            PATH@551..555
+              PATH_SEGMENT@551..555
+                NAME_REF@551..555
+                  IDENT@551..555 "bool"
+          WHITESPACE@555..556 " "
+          EQ@556..557 "="
+          WHITESPACE@557..558 " "
+          RETURN_EXPR@558..569
+            RETURN_KW@558..564 "return"
+            WHITESPACE@564..565 " "
+            LITERAL@565..569
+              TRUE_KW@565..569 "true"
+          SEMICOLON@569..570 ";"
+        WHITESPACE@570..571 " "
+        R_CURLY@571..572 "}"
+  WHITESPACE@572..574 "\n\n"
+  FN_DEF@574..624
+    FN_KW@574..576 "fn"
+    WHITESPACE@576..577 " "
+    NAME@577..582
+      IDENT@577..582 "funny"
+    PARAM_LIST@582..584
+      L_PAREN@582..583 "("
+      R_PAREN@583..584 ")"
+    WHITESPACE@584..585 " "
+    BLOCK_EXPR@585..624
+      BLOCK@585..624
+        L_CURLY@585..586 "{"
+        WHITESPACE@586..591 "\n    "
+        FN_DEF@591..607
+          FN_KW@591..593 "fn"
+          WHITESPACE@593..594 " "
+          NAME@594..595
+            IDENT@594..595 "f"
+          PARAM_LIST@595..603
+            L_PAREN@595..596 "("
+            PARAM@596..602
+              BIND_PAT@596..598
+                NAME@596..598
+                  IDENT@596..598 "_x"
+              COLON@598..599 ":"
+              WHITESPACE@599..600 " "
+              TUPLE_TYPE@600..602
+                L_PAREN@600..601 "("
+                R_PAREN@601..602 ")"
+            R_PAREN@602..603 ")"
+          WHITESPACE@603..604 " "
+          BLOCK_EXPR@604..607
+            BLOCK@604..607
+              L_CURLY@604..605 "{"
+              WHITESPACE@605..606 " "
+              R_CURLY@606..607 "}"
+        WHITESPACE@607..612 "\n    "
+        EXPR_STMT@612..622
+          CALL_EXPR@612..621
+            PATH_EXPR@612..613
+              PATH@612..613
+                PATH_SEGMENT@612..613
+                  NAME_REF@612..613
+                    IDENT@612..613 "f"
+            ARG_LIST@613..621
+              L_PAREN@613..614 "("
+              RETURN_EXPR@614..620
+                RETURN_KW@614..620 "return"
+              R_PAREN@620..621 ")"
+          SEMICOLON@621..622 ";"
+        WHITESPACE@622..623 "\n"
+        R_CURLY@623..624 "}"
+  WHITESPACE@624..626 "\n\n"
+  FN_DEF@626..816
+    FN_KW@626..628 "fn"
+    WHITESPACE@628..629 " "
+    NAME@629..633
+      IDENT@629..633 "what"
+    PARAM_LIST@633..635
+      L_PAREN@633..634 "("
+      R_PAREN@634..635 ")"
+    WHITESPACE@635..636 " "
+    BLOCK_EXPR@636..816
+      BLOCK@636..816
+        L_CURLY@636..637 "{"
+        WHITESPACE@637..642 "\n    "
+        FN_DEF@642..720
+          FN_KW@642..644 "fn"
+          WHITESPACE@644..645 " "
+          NAME@645..648
+            IDENT@645..648 "the"
+          PARAM_LIST@648..664
+            L_PAREN@648..649 "("
+            PARAM@649..663
+              BIND_PAT@649..650
+                NAME@649..650
+                  IDENT@649..650 "x"
+              COLON@650..651 ":"
+              WHITESPACE@651..652 " "
+              REFERENCE_TYPE@652..663
+                AMP@652..653 "&"
+                PATH_TYPE@653..663
+                  PATH@653..663
+                    PATH_SEGMENT@653..663
+                      NAME_REF@653..657
+                        IDENT@653..657 "Cell"
+                      TYPE_ARG_LIST@657..663
+                        L_ANGLE@657..658 "<"
+                        TYPE_ARG@658..662
+                          PATH_TYPE@658..662
+                            PATH@658..662
+                              PATH_SEGMENT@658..662
+                                NAME_REF@658..662
+                                  IDENT@658..662 "bool"
+                        R_ANGLE@662..663 ">"
+            R_PAREN@663..664 ")"
+          WHITESPACE@664..665 " "
+          BLOCK_EXPR@665..720
+            BLOCK@665..720
+              L_CURLY@665..666 "{"
+              WHITESPACE@666..675 "\n        "
+              EXPR_STMT@675..714
+                RETURN_EXPR@675..713
+                  RETURN_KW@675..681 "return"
+                  WHITESPACE@681..682 " "
+                  WHILE_EXPR@682..713
+                    WHILE_KW@682..687 "while"
+                    WHITESPACE@687..688 " "
+                    CONDITION@688..696
+                      PREFIX_EXPR@688..696
+                        BANG@688..689 "!"
+                        METHOD_CALL_EXPR@689..696
+                          PATH_EXPR@689..690
+                            PATH@689..690
+                              PATH_SEGMENT@689..690
+                                NAME_REF@689..690
+                                  IDENT@689..690 "x"
+                          DOT@690..691 "."
+                          NAME_REF@691..694
+                            IDENT@691..694 "get"
+                          ARG_LIST@694..696
+                            L_PAREN@694..695 "("
+                            R_PAREN@695..696 ")"
+                    WHITESPACE@696..697 " "
+                    BLOCK_EXPR@697..713
+                      BLOCK@697..713
+                        L_CURLY@697..698 "{"
+                        WHITESPACE@698..699 " "
+                        EXPR_STMT@699..711
+                          METHOD_CALL_EXPR@699..710
+                            PATH_EXPR@699..700
+                              PATH@699..700
+                                PATH_SEGMENT@699..700
+                                  NAME_REF@699..700
+                                    IDENT@699..700 "x"
+                            DOT@700..701 "."
+                            NAME_REF@701..704
+                              IDENT@701..704 "set"
+                            ARG_LIST@704..710
+                              L_PAREN@704..705 "("
+                              LITERAL@705..709
+                                TRUE_KW@705..709 "true"
+                              R_PAREN@709..710 ")"
+                          SEMICOLON@710..711 ";"
+                        WHITESPACE@711..712 " "
+                        R_CURLY@712..713 "}"
+                SEMICOLON@713..714 ";"
+              WHITESPACE@714..719 "\n    "
+              R_CURLY@719..720 "}"
+        WHITESPACE@720..725 "\n    "
+        LET_STMT@725..751
+          LET_KW@725..728 "let"
+          WHITESPACE@728..729 " "
+          BIND_PAT@729..730
+            NAME@729..730
+              IDENT@729..730 "i"
+          WHITESPACE@730..731 " "
+          EQ@731..732 "="
+          WHITESPACE@732..733 " "
+          REF_EXPR@733..750
+            AMP@733..734 "&"
+            CALL_EXPR@734..750
+              PATH_EXPR@734..743
+                PATH@734..743
+                  PATH@734..738
+                    PATH_SEGMENT@734..738
+                      NAME_REF@734..738
+                        IDENT@734..738 "Cell"
+                  COLON2@738..740 "::"
+                  PATH_SEGMENT@740..743
+                    NAME_REF@740..743
+                      IDENT@740..743 "new"
+              ARG_LIST@743..750
+                L_PAREN@743..744 "("
+                LITERAL@744..749
+                  FALSE_KW@744..749 "false"
+                R_PAREN@749..750 ")"
+          SEMICOLON@750..751 ";"
+        WHITESPACE@751..756 "\n    "
+        LET_STMT@756..778
+          LET_KW@756..759 "let"
+          WHITESPACE@759..760 " "
+          BIND_PAT@760..764
+            NAME@760..764
+              IDENT@760..764 "dont"
+          WHITESPACE@764..765 " "
+          EQ@765..766 "="
+          WHITESPACE@766..767 " "
+          BLOCK_EXPR@767..777
+            BLOCK@767..777
+              L_CURLY@767..768 "{"
+              LAMBDA_EXPR@768..776
+                PARAM_LIST@768..770
+                  PIPE@768..769 "|"
+                  PIPE@769..770 "|"
+                CALL_EXPR@770..776
+                  PATH_EXPR@770..773
+                    PATH@770..773
+                      PATH_SEGMENT@770..773
+                        NAME_REF@770..773
+                          IDENT@770..773 "the"
+                  ARG_LIST@773..776
+                    L_PAREN@773..774 "("
+                    PATH_EXPR@774..775
+                      PATH@774..775
+                        PATH_SEGMENT@774..775
+                          NAME_REF@774..775
+                            IDENT@774..775 "i"
+                    R_PAREN@775..776 ")"
+              R_CURLY@776..777 "}"
+          SEMICOLON@777..778 ";"
+        WHITESPACE@778..783 "\n    "
+        EXPR_STMT@783..790
+          CALL_EXPR@783..789
+            PATH_EXPR@783..787
+              PATH@783..787
+                PATH_SEGMENT@783..787
+                  NAME_REF@783..787
+                    IDENT@783..787 "dont"
+            ARG_LIST@787..789
+              L_PAREN@787..788 "("
+              R_PAREN@788..789 ")"
+          SEMICOLON@789..790 ";"
+        WHITESPACE@790..795 "\n    "
+        EXPR_STMT@795..814
+          MACRO_CALL@795..813
+            PATH@795..801
+              PATH_SEGMENT@795..801
+                NAME_REF@795..801
+                  IDENT@795..801 "assert"
+            BANG@801..802 "!"
+            TOKEN_TREE@802..813
+              L_PAREN@802..803 "("
+              TOKEN_TREE@803..812
+                L_PAREN@803..804 "("
+                IDENT@804..805 "i"
+                DOT@805..806 "."
+                IDENT@806..809 "get"
+                TOKEN_TREE@809..811
+                  L_PAREN@809..810 "("
+                  R_PAREN@810..811 ")"
+                R_PAREN@811..812 ")"
+              R_PAREN@812..813 ")"
+          SEMICOLON@813..814 ";"
+        WHITESPACE@814..815 "\n"
+        R_CURLY@815..816 "}"
+  WHITESPACE@816..818 "\n\n"
+  FN_DEF@818..1322
+    FN_KW@818..820 "fn"
+    WHITESPACE@820..821 " "
+    NAME@821..832
+      IDENT@821..832 "zombiejesus"
+    PARAM_LIST@832..834
+      L_PAREN@832..833 "("
+      R_PAREN@833..834 ")"
+    WHITESPACE@834..835 " "
+    BLOCK_EXPR@835..1322
+      BLOCK@835..1322
+        L_CURLY@835..836 "{"
+        WHITESPACE@836..841 "\n    "
+        LOOP_EXPR@841..1320
+          LOOP_KW@841..845 "loop"
+          WHITESPACE@845..846 " "
+          BLOCK_EXPR@846..1320
+            BLOCK@846..1320
+              L_CURLY@846..847 "{"
+              WHITESPACE@847..856 "\n        "
+              EXPR_STMT@856..1283
+                WHILE_EXPR@856..1283
+                  WHILE_KW@856..861 "while"
+                  WHITESPACE@861..862 " "
+                  CONDITION@862..870
+                    PAREN_EXPR@862..870
+                      L_PAREN@862..863 "("
+                      RETURN_EXPR@863..869
+                        RETURN_KW@863..869 "return"
+                      R_PAREN@869..870 ")"
+                  WHITESPACE@870..871 " "
+                  BLOCK_EXPR@871..1283
+                    BLOCK@871..1283
+                      L_CURLY@871..872 "{"
+                      WHITESPACE@872..885 "\n            "
+                      IF_EXPR@885..1273
+                        IF_KW@885..887 "if"
+                        WHITESPACE@887..888 " "
+                        CONDITION@888..896
+                          PAREN_EXPR@888..896
+                            L_PAREN@888..889 "("
+                            RETURN_EXPR@889..895
+                              RETURN_KW@889..895 "return"
+                            R_PAREN@895..896 ")"
+                        WHITESPACE@896..897 " "
+                        BLOCK_EXPR@897..1216
+                          BLOCK@897..1216
+                            L_CURLY@897..898 "{"
+                            WHITESPACE@898..915 "\n                "
+                            EXPR_STMT@915..1202
+                              MATCH_EXPR@915..1201
+                                MATCH_KW@915..920 "match"
+                                WHITESPACE@920..921 " "
+                                PAREN_EXPR@921..929
+                                  L_PAREN@921..922 "("
+                                  RETURN_EXPR@922..928
+                                    RETURN_KW@922..928 "return"
+                                  R_PAREN@928..929 ")"
+                                WHITESPACE@929..930 " "
+                                MATCH_ARM_LIST@930..1201
+                                  L_CURLY@930..931 "{"
+                                  WHITESPACE@931..952 "\n                    "
+                                  MATCH_ARM@952..1147
+                                    LITERAL_PAT@952..953
+                                      LITERAL@952..953
+                                        INT_NUMBER@952..953 "1"
+                                    WHITESPACE@953..954 " "
+                                    FAT_ARROW@954..956 "=>"
+                                    WHITESPACE@956..957 " "
+                                    BLOCK_EXPR@957..1147
+                                      BLOCK@957..1147
+                                        L_CURLY@957..958 "{"
+                                        WHITESPACE@958..983 "\n                     ..."
+                                        IF_EXPR@983..1125
+                                          IF_KW@983..985 "if"
+                                          WHITESPACE@985..986 " "
+                                          CONDITION@986..994
+                                            PAREN_EXPR@986..994
+                                              L_PAREN@986..987 "("
+                                              RETURN_EXPR@987..993
+                                                RETURN_KW@987..993 "return"
+                                              R_PAREN@993..994 ")"
+                                          WHITESPACE@994..995 " "
+                                          BLOCK_EXPR@995..1057
+                                            BLOCK@995..1057
+                                              L_CURLY@995..996 "{"
+                                              WHITESPACE@996..1025 "\n                     ..."
+                                              RETURN_EXPR@1025..1031
+                                                RETURN_KW@1025..1031 "return"
+                                              WHITESPACE@1031..1056 "\n                     ..."
+                                              R_CURLY@1056..1057 "}"
+                                          WHITESPACE@1057..1058 " "
+                                          ELSE_KW@1058..1062 "else"
+                                          WHITESPACE@1062..1063 " "
+                                          BLOCK_EXPR@1063..1125
+                                            BLOCK@1063..1125
+                                              L_CURLY@1063..1064 "{"
+                                              WHITESPACE@1064..1093 "\n                     ..."
+                                              RETURN_EXPR@1093..1099
+                                                RETURN_KW@1093..1099 "return"
+                                              WHITESPACE@1099..1124 "\n                     ..."
+                                              R_CURLY@1124..1125 "}"
+                                        WHITESPACE@1125..1146 "\n                    "
+                                        R_CURLY@1146..1147 "}"
+                                  WHITESPACE@1147..1168 "\n                    "
+                                  MATCH_ARM@1168..1183
+                                    PLACEHOLDER_PAT@1168..1169
+                                      UNDERSCORE@1168..1169 "_"
+                                    WHITESPACE@1169..1170 " "
+                                    FAT_ARROW@1170..1172 "=>"
+                                    WHITESPACE@1172..1173 " "
+                                    BLOCK_EXPR@1173..1183
+                                      BLOCK@1173..1183
+                                        L_CURLY@1173..1174 "{"
+                                        WHITESPACE@1174..1175 " "
+                                        RETURN_EXPR@1175..1181
+                                          RETURN_KW@1175..1181 "return"
+                                        WHITESPACE@1181..1182 " "
+                                        R_CURLY@1182..1183 "}"
+                                  WHITESPACE@1183..1200 "\n                "
+                                  R_CURLY@1200..1201 "}"
+                              SEMICOLON@1201..1202 ";"
+                            WHITESPACE@1202..1215 "\n            "
+                            R_CURLY@1215..1216 "}"
+                        WHITESPACE@1216..1217 " "
+                        ELSE_KW@1217..1221 "else"
+                        WHITESPACE@1221..1222 " "
+                        IF_EXPR@1222..1273
+                          IF_KW@1222..1224 "if"
+                          WHITESPACE@1224..1225 " "
+                          CONDITION@1225..1233
+                            PAREN_EXPR@1225..1233
+                              L_PAREN@1225..1226 "("
+                              RETURN_EXPR@1226..1232
+                                RETURN_KW@1226..1232 "return"
+                              R_PAREN@1232..1233 ")"
+                          WHITESPACE@1233..1234 " "
+                          BLOCK_EXPR@1234..1273
+                            BLOCK@1234..1273
+                              L_CURLY@1234..1235 "{"
+                              WHITESPACE@1235..1252 "\n                "
+                              EXPR_STMT@1252..1259
+                                RETURN_EXPR@1252..1258
+                                  RETURN_KW@1252..1258 "return"
+                                SEMICOLON@1258..1259 ";"
+                              WHITESPACE@1259..1272 "\n            "
+                              R_CURLY@1272..1273 "}"
+                      WHITESPACE@1273..1282 "\n        "
+                      R_CURLY@1282..1283 "}"
+              WHITESPACE@1283..1292 "\n        "
+              IF_EXPR@1292..1314
+                IF_KW@1292..1294 "if"
+                WHITESPACE@1294..1295 " "
+                CONDITION@1295..1303
+                  PAREN_EXPR@1295..1303
+                    L_PAREN@1295..1296 "("
+                    RETURN_EXPR@1296..1302
+                      RETURN_KW@1296..1302 "return"
+                    R_PAREN@1302..1303 ")"
+                WHITESPACE@1303..1304 " "
+                BLOCK_EXPR@1304..1314
+                  BLOCK@1304..1314
+                    L_CURLY@1304..1305 "{"
+                    WHITESPACE@1305..1306 " "
+                    EXPR_STMT@1306..1312
+                      BREAK_EXPR@1306..1311
+                        BREAK_KW@1306..1311 "break"
+                      SEMICOLON@1311..1312 ";"
+                    WHITESPACE@1312..1313 " "
+                    R_CURLY@1313..1314 "}"
+              WHITESPACE@1314..1319 "\n    "
+              R_CURLY@1319..1320 "}"
+        WHITESPACE@1320..1321 "\n"
+        R_CURLY@1321..1322 "}"
+  WHITESPACE@1322..1324 "\n\n"
+  FN_DEF@1324..1539
+    FN_KW@1324..1326 "fn"
+    WHITESPACE@1326..1327 " "
+    NAME@1327..1334
+      IDENT@1327..1334 "notsure"
+    PARAM_LIST@1334..1336
+      L_PAREN@1334..1335 "("
+      R_PAREN@1335..1336 ")"
+    WHITESPACE@1336..1337 " "
+    BLOCK_EXPR@1337..1539
+      BLOCK@1337..1539
+        L_CURLY@1337..1338 "{"
+        WHITESPACE@1338..1343 "\n    "
+        LET_STMT@1343..1361
+          LET_KW@1343..1346 "let"
+          WHITESPACE@1346..1347 " "
+          BIND_PAT@1347..1353
+            MUT_KW@1347..1350 "mut"
+            WHITESPACE@1350..1351 " "
+            NAME@1351..1353
+              IDENT@1351..1353 "_x"
+          COLON@1353..1354 ":"
+          WHITESPACE@1354..1355 " "
+          PATH_TYPE@1355..1360
+            PATH@1355..1360
+              PATH_SEGMENT@1355..1360
+                NAME_REF@1355..1360
+                  IDENT@1355..1360 "isize"
+          SEMICOLON@1360..1361 ";"
+        WHITESPACE@1361..1366 "\n    "
+        LET_STMT@1366..1400
+          LET_KW@1366..1369 "let"
+          WHITESPACE@1369..1370 " "
+          BIND_PAT@1370..1376
+            MUT_KW@1370..1373 "mut"
+            WHITESPACE@1373..1374 " "
+            NAME@1374..1376
+              IDENT@1374..1376 "_y"
+          WHITESPACE@1376..1377 " "
+          EQ@1377..1378 "="
+          WHITESPACE@1378..1379 " "
+          BIN_EXPR@1379..1399
+            PAREN_EXPR@1379..1387
+              L_PAREN@1379..1380 "("
+              BIN_EXPR@1380..1386
+                PATH_EXPR@1380..1382
+                  PATH@1380..1382
+                    PATH_SEGMENT@1380..1382
+                      NAME_REF@1380..1382
+                        IDENT@1380..1382 "_x"
+                WHITESPACE@1382..1383 " "
+                EQ@1383..1384 "="
+                WHITESPACE@1384..1385 " "
+                LITERAL@1385..1386
+                  INT_NUMBER@1385..1386 "0"
+              R_PAREN@1386..1387 ")"
+            WHITESPACE@1387..1388 " "
+            EQ2@1388..1390 "=="
+            WHITESPACE@1390..1391 " "
+            PAREN_EXPR@1391..1399
+              L_PAREN@1391..1392 "("
+              BIN_EXPR@1392..1398
+                PATH_EXPR@1392..1394
+                  PATH@1392..1394
+                    PATH_SEGMENT@1392..1394
+                      NAME_REF@1392..1394
+                        IDENT@1392..1394 "_x"
+                WHITESPACE@1394..1395 " "
+                EQ@1395..1396 "="
+                WHITESPACE@1396..1397 " "
+                LITERAL@1397..1398
+                  INT_NUMBER@1397..1398 "0"
+              R_PAREN@1398..1399 ")"
+          SEMICOLON@1399..1400 ";"
+        WHITESPACE@1400..1405 "\n    "
+        LET_STMT@1405..1438
+          LET_KW@1405..1408 "let"
+          WHITESPACE@1408..1409 " "
+          BIND_PAT@1409..1415
+            MUT_KW@1409..1412 "mut"
+            WHITESPACE@1412..1413 " "
+            NAME@1413..1415
+              IDENT@1413..1415 "_z"
+          WHITESPACE@1415..1416 " "
+          EQ@1416..1417 "="
+          WHITESPACE@1417..1418 " "
+          BIN_EXPR@1418..1437
+            PAREN_EXPR@1418..1426
+              L_PAREN@1418..1419 "("
+              BIN_EXPR@1419..1425
+                PATH_EXPR@1419..1421
+                  PATH@1419..1421
+                    PATH_SEGMENT@1419..1421
+                      NAME_REF@1419..1421
+                        IDENT@1419..1421 "_x"
+                WHITESPACE@1421..1422 " "
+                EQ@1422..1423 "="
+                WHITESPACE@1423..1424 " "
+                LITERAL@1424..1425
+                  INT_NUMBER@1424..1425 "0"
+              R_PAREN@1425..1426 ")"
+            WHITESPACE@1426..1427 " "
+            L_ANGLE@1427..1428 "<"
+            WHITESPACE@1428..1429 " "
+            PAREN_EXPR@1429..1437
+              L_PAREN@1429..1430 "("
+              BIN_EXPR@1430..1436
+                PATH_EXPR@1430..1432
+                  PATH@1430..1432
+                    PATH_SEGMENT@1430..1432
+                      NAME_REF@1430..1432
+                        IDENT@1430..1432 "_x"
+                WHITESPACE@1432..1433 " "
+                EQ@1433..1434 "="
+                WHITESPACE@1434..1435 " "
+                LITERAL@1435..1436
+                  INT_NUMBER@1435..1436 "0"
+              R_PAREN@1436..1437 ")"
+          SEMICOLON@1437..1438 ";"
+        WHITESPACE@1438..1443 "\n    "
+        LET_STMT@1443..1474
+          LET_KW@1443..1446 "let"
+          WHITESPACE@1446..1447 " "
+          BIND_PAT@1447..1449
+            NAME@1447..1449
+              IDENT@1447..1449 "_a"
+          WHITESPACE@1449..1450 " "
+          EQ@1450..1451 "="
+          WHITESPACE@1451..1452 " "
+          BIN_EXPR@1452..1473
+            PAREN_EXPR@1452..1461
+              L_PAREN@1452..1453 "("
+              BIN_EXPR@1453..1460
+                PATH_EXPR@1453..1455
+                  PATH@1453..1455
+                    PATH_SEGMENT@1453..1455
+                      NAME_REF@1453..1455
+                        IDENT@1453..1455 "_x"
+                WHITESPACE@1455..1456 " "
+                PLUSEQ@1456..1458 "+="
+                WHITESPACE@1458..1459 " "
+                LITERAL@1459..1460
+                  INT_NUMBER@1459..1460 "0"
+              R_PAREN@1460..1461 ")"
+            WHITESPACE@1461..1462 " "
+            EQ2@1462..1464 "=="
+            WHITESPACE@1464..1465 " "
+            PAREN_EXPR@1465..1473
+              L_PAREN@1465..1466 "("
+              BIN_EXPR@1466..1472
+                PATH_EXPR@1466..1468
+                  PATH@1466..1468
+                    PATH_SEGMENT@1466..1468
+                      NAME_REF@1466..1468
+                        IDENT@1466..1468 "_x"
+                WHITESPACE@1468..1469 " "
+                EQ@1469..1470 "="
+                WHITESPACE@1470..1471 " "
+                LITERAL@1471..1472
+                  INT_NUMBER@1471..1472 "0"
+              R_PAREN@1472..1473 ")"
+          SEMICOLON@1473..1474 ";"
+        WHITESPACE@1474..1479 "\n    "
+        LET_STMT@1479..1537
+          LET_KW@1479..1482 "let"
+          WHITESPACE@1482..1483 " "
+          BIND_PAT@1483..1485
+            NAME@1483..1485
+              IDENT@1483..1485 "_b"
+          WHITESPACE@1485..1486 " "
+          EQ@1486..1487 "="
+          WHITESPACE@1487..1488 " "
+          BIN_EXPR@1488..1536
+            CALL_EXPR@1488..1510
+              PATH_EXPR@1488..1492
+                PATH@1488..1492
+                  PATH_SEGMENT@1488..1492
+                    NAME_REF@1488..1492
+                      IDENT@1488..1492 "swap"
+              ARG_LIST@1492..1510
+                L_PAREN@1492..1493 "("
+                REF_EXPR@1493..1500
+                  AMP@1493..1494 "&"
+                  MUT_KW@1494..1497 "mut"
+                  WHITESPACE@1497..1498 " "
+                  PATH_EXPR@1498..1500
+                    PATH@1498..1500
+                      PATH_SEGMENT@1498..1500
+                        NAME_REF@1498..1500
+                          IDENT@1498..1500 "_y"
+                COMMA@1500..1501 ","
+                WHITESPACE@1501..1502 " "
+                REF_EXPR@1502..1509
+                  AMP@1502..1503 "&"
+                  MUT_KW@1503..1506 "mut"
+                  WHITESPACE@1506..1507 " "
+                  PATH_EXPR@1507..1509
+                    PATH@1507..1509
+                      PATH_SEGMENT@1507..1509
+                        NAME_REF@1507..1509
+                          IDENT@1507..1509 "_z"
+                R_PAREN@1509..1510 ")"
+            WHITESPACE@1510..1511 " "
+            EQ2@1511..1513 "=="
+            WHITESPACE@1513..1514 " "
+            CALL_EXPR@1514..1536
+              PATH_EXPR@1514..1518
+                PATH@1514..1518
+                  PATH_SEGMENT@1514..1518
+                    NAME_REF@1514..1518
+                      IDENT@1514..1518 "swap"
+              ARG_LIST@1518..1536
+                L_PAREN@1518..1519 "("
+                REF_EXPR@1519..1526
+                  AMP@1519..1520 "&"
+                  MUT_KW@1520..1523 "mut"
+                  WHITESPACE@1523..1524 " "
+                  PATH_EXPR@1524..1526
+                    PATH@1524..1526
+                      PATH_SEGMENT@1524..1526
+                        NAME_REF@1524..1526
+                          IDENT@1524..1526 "_y"
+                COMMA@1526..1527 ","
+                WHITESPACE@1527..1528 " "
+                REF_EXPR@1528..1535
+                  AMP@1528..1529 "&"
+                  MUT_KW@1529..1532 "mut"
+                  WHITESPACE@1532..1533 " "
+                  PATH_EXPR@1533..1535
+                    PATH@1533..1535
+                      PATH_SEGMENT@1533..1535
+                        NAME_REF@1533..1535
+                          IDENT@1533..1535 "_z"
+                R_PAREN@1535..1536 ")"
+          SEMICOLON@1536..1537 ";"
+        WHITESPACE@1537..1538 "\n"
+        R_CURLY@1538..1539 "}"
+  WHITESPACE@1539..1541 "\n\n"
+  FN_DEF@1541..1741
+    FN_KW@1541..1543 "fn"
+    WHITESPACE@1543..1544 " "
+    NAME@1544..1557
+      IDENT@1544..1557 "canttouchthis"
+    PARAM_LIST@1557..1559
+      L_PAREN@1557..1558 "("
+      R_PAREN@1558..1559 ")"
+    WHITESPACE@1559..1560 " "
+    RET_TYPE@1560..1568
+      THIN_ARROW@1560..1562 "->"
+      WHITESPACE@1562..1563 " "
+      PATH_TYPE@1563..1568
+        PATH@1563..1568
+          PATH_SEGMENT@1563..1568
+            NAME_REF@1563..1568
+              IDENT@1563..1568 "usize"
+    WHITESPACE@1568..1569 " "
+    BLOCK_EXPR@1569..1741
+      BLOCK@1569..1741
+        L_CURLY@1569..1570 "{"
+        WHITESPACE@1570..1575 "\n    "
+        FN_DEF@1575..1598
+          FN_KW@1575..1577 "fn"
+          WHITESPACE@1577..1578 " "
+          NAME@1578..1579
+            IDENT@1578..1579 "p"
+          PARAM_LIST@1579..1581
+            L_PAREN@1579..1580 "("
+            R_PAREN@1580..1581 ")"
+          WHITESPACE@1581..1582 " "
+          RET_TYPE@1582..1589
+            THIN_ARROW@1582..1584 "->"
+            WHITESPACE@1584..1585 " "
+            PATH_TYPE@1585..1589
+              PATH@1585..1589
+                PATH_SEGMENT@1585..1589
+                  NAME_REF@1585..1589
+                    IDENT@1585..1589 "bool"
+          WHITESPACE@1589..1590 " "
+          BLOCK_EXPR@1590..1598
+            BLOCK@1590..1598
+              L_CURLY@1590..1591 "{"
+              WHITESPACE@1591..1592 " "
+              LITERAL@1592..1596
+                TRUE_KW@1592..1596 "true"
+              WHITESPACE@1596..1597 " "
+              R_CURLY@1597..1598 "}"
+        WHITESPACE@1598..1603 "\n    "
+        LET_STMT@1603..1648
+          LET_KW@1603..1606 "let"
+          WHITESPACE@1606..1607 " "
+          BIND_PAT@1607..1609
+            NAME@1607..1609
+              IDENT@1607..1609 "_a"
+          WHITESPACE@1609..1610 " "
+          EQ@1610..1611 "="
+          WHITESPACE@1611..1612 " "
+          PAREN_EXPR@1612..1647
+            L_PAREN@1612..1613 "("
+            BIN_EXPR@1613..1646
+              MACRO_CALL@1613..1628
+                PATH@1613..1619
+                  PATH_SEGMENT@1613..1619
+                    NAME_REF@1613..1619
+                      IDENT@1613..1619 "assert"
+                BANG@1619..1620 "!"
+                TOKEN_TREE@1620..1628
+                  L_PAREN@1620..1621 "("
+                  TOKEN_TREE@1621..1627
+                    L_PAREN@1621..1622 "("
+                    TRUE_KW@1622..1626 "true"
+                    R_PAREN@1626..1627 ")"
+                  R_PAREN@1627..1628 ")"
+              WHITESPACE@1628..1629 " "
+              EQ2@1629..1631 "=="
+              WHITESPACE@1631..1632 " "
+              PAREN_EXPR@1632..1646
+                L_PAREN@1632..1633 "("
+                MACRO_CALL@1633..1645
+                  PATH@1633..1639
+                    PATH_SEGMENT@1633..1639
+                      NAME_REF@1633..1639
+                        IDENT@1633..1639 "assert"
+                  BANG@1639..1640 "!"
+                  TOKEN_TREE@1640..1645
+                    L_PAREN@1640..1641 "("
+                    IDENT@1641..1642 "p"
+                    TOKEN_TREE@1642..1644
+                      L_PAREN@1642..1643 "("
+                      R_PAREN@1643..1644 ")"
+                    R_PAREN@1644..1645 ")"
+                R_PAREN@1645..1646 ")"
+            R_PAREN@1646..1647 ")"
+          SEMICOLON@1647..1648 ";"
+        WHITESPACE@1648..1653 "\n    "
+        LET_STMT@1653..1685
+          LET_KW@1653..1656 "let"
+          WHITESPACE@1656..1657 " "
+          BIND_PAT@1657..1659
+            NAME@1657..1659
+              IDENT@1657..1659 "_c"
+          WHITESPACE@1659..1660 " "
+          EQ@1660..1661 "="
+          WHITESPACE@1661..1662 " "
+          PAREN_EXPR@1662..1684
+            L_PAREN@1662..1663 "("
+            BIN_EXPR@1663..1683
+              MACRO_CALL@1663..1677
+                PATH@1663..1669
+                  PATH_SEGMENT@1663..1669
+                    NAME_REF@1663..1669
+                      IDENT@1663..1669 "assert"
+                BANG@1669..1670 "!"
+                TOKEN_TREE@1670..1677
+                  L_PAREN@1670..1671 "("
+                  TOKEN_TREE@1671..1676
+                    L_PAREN@1671..1672 "("
+                    IDENT@1672..1673 "p"
+                    TOKEN_TREE@1673..1675
+                      L_PAREN@1673..1674 "("
+                      R_PAREN@1674..1675 ")"
+                    R_PAREN@1675..1676 ")"
+                  R_PAREN@1676..1677 ")"
+              WHITESPACE@1677..1678 " "
+              EQ2@1678..1680 "=="
+              WHITESPACE@1680..1681 " "
+              TUPLE_EXPR@1681..1683
+                L_PAREN@1681..1682 "("
+                R_PAREN@1682..1683 ")"
+            R_PAREN@1683..1684 ")"
+          SEMICOLON@1684..1685 ";"
+        WHITESPACE@1685..1690 "\n    "
+        LET_STMT@1690..1739
+          LET_KW@1690..1693 "let"
+          WHITESPACE@1693..1694 " "
+          BIND_PAT@1694..1696
+            NAME@1694..1696
+              IDENT@1694..1696 "_b"
+          COLON@1696..1697 ":"
+          WHITESPACE@1697..1698 " "
+          PATH_TYPE@1698..1702
+            PATH@1698..1702
+              PATH_SEGMENT@1698..1702
+                NAME_REF@1698..1702
+                  IDENT@1698..1702 "bool"
+          WHITESPACE@1702..1703 " "
+          EQ@1703..1704 "="
+          WHITESPACE@1704..1705 " "
+          PAREN_EXPR@1705..1738
+            L_PAREN@1705..1706 "("
+            BIN_EXPR@1706..1737
+              MACRO_CALL@1706..1723
+                PATH@1706..1713
+                  PATH_SEGMENT@1706..1713
+                    NAME_REF@1706..1713
+                      IDENT@1706..1713 "println"
+                BANG@1713..1714 "!"
+                TOKEN_TREE@1714..1723
+                  L_PAREN@1714..1715 "("
+                  STRING@1715..1719 "\"{}\""
+                  COMMA@1719..1720 ","
+                  WHITESPACE@1720..1721 " "
+                  INT_NUMBER@1721..1722 "0"
+                  R_PAREN@1722..1723 ")"
+              WHITESPACE@1723..1724 " "
+              EQ2@1724..1726 "=="
+              WHITESPACE@1726..1727 " "
+              PAREN_EXPR@1727..1737
+                L_PAREN@1727..1728 "("
+                RETURN_EXPR@1728..1736
+                  RETURN_KW@1728..1734 "return"
+                  WHITESPACE@1734..1735 " "
+                  LITERAL@1735..1736
+                    INT_NUMBER@1735..1736 "0"
+                R_PAREN@1736..1737 ")"
+            R_PAREN@1737..1738 ")"
+          SEMICOLON@1738..1739 ";"
+        WHITESPACE@1739..1740 "\n"
+        R_CURLY@1740..1741 "}"
+  WHITESPACE@1741..1743 "\n\n"
+  FN_DEF@1743..1904
+    FN_KW@1743..1745 "fn"
+    WHITESPACE@1745..1746 " "
+    NAME@1746..1755
+      IDENT@1746..1755 "angrydome"
+    PARAM_LIST@1755..1757
+      L_PAREN@1755..1756 "("
+      R_PAREN@1756..1757 ")"
+    WHITESPACE@1757..1758 " "
+    BLOCK_EXPR@1758..1904
+      BLOCK@1758..1904
+        L_CURLY@1758..1759 "{"
+        WHITESPACE@1759..1764 "\n    "
+        EXPR_STMT@1764..1785
+          LOOP_EXPR@1764..1785
+            LOOP_KW@1764..1768 "loop"
+            WHITESPACE@1768..1769 " "
+            BLOCK_EXPR@1769..1785
+              BLOCK@1769..1785
+                L_CURLY@1769..1770 "{"
+                WHITESPACE@1770..1771 " "
+                IF_EXPR@1771..1783
+                  IF_KW@1771..1773 "if"
+                  WHITESPACE@1773..1774 " "
+                  CONDITION@1774..1779
+                    BREAK_EXPR@1774..1779
+                      BREAK_KW@1774..1779 "break"
+                  WHITESPACE@1779..1780 " "
+                  BLOCK_EXPR@1780..1783
+                    BLOCK@1780..1783
+                      L_CURLY@1780..1781 "{"
+                      WHITESPACE@1781..1782 " "
+                      R_CURLY@1782..1783 "}"
+                WHITESPACE@1783..1784 " "
+                R_CURLY@1784..1785 "}"
+        WHITESPACE@1785..1790 "\n    "
+        LET_STMT@1790..1804
+          LET_KW@1790..1793 "let"
+          WHITESPACE@1793..1794 " "
+          BIND_PAT@1794..1799
+            MUT_KW@1794..1797 "mut"
+            WHITESPACE@1797..1798 " "
+            NAME@1798..1799
+              IDENT@1798..1799 "i"
+          WHITESPACE@1799..1800 " "
+          EQ@1800..1801 "="
+          WHITESPACE@1801..1802 " "
+          LITERAL@1802..1803
+            INT_NUMBER@1802..1803 "0"
+          SEMICOLON@1803..1804 ";"
+        WHITESPACE@1804..1809 "\n    "
+        LOOP_EXPR@1809..1902
+          LOOP_KW@1809..1813 "loop"
+          WHITESPACE@1813..1814 " "
+          BLOCK_EXPR@1814..1902
+            BLOCK@1814..1902
+              L_CURLY@1814..1815 "{"
+              WHITESPACE@1815..1816 " "
+              EXPR_STMT@1816..1823
+                BIN_EXPR@1816..1822
+                  PATH_EXPR@1816..1817
+                    PATH@1816..1817
+                      PATH_SEGMENT@1816..1817
+                        NAME_REF@1816..1817
+                          IDENT@1816..1817 "i"
+                  WHITESPACE@1817..1818 " "
+                  PLUSEQ@1818..1820 "+="
+                  WHITESPACE@1820..1821 " "
+                  LITERAL@1821..1822
+                    INT_NUMBER@1821..1822 "1"
+                SEMICOLON@1822..1823 ";"
+              WHITESPACE@1823..1824 " "
+              EXPR_STMT@1824..1887
+                IF_EXPR@1824..1887
+                  IF_KW@1824..1826 "if"
+                  WHITESPACE@1826..1827 " "
+                  CONDITION@1827..1833
+                    BIN_EXPR@1827..1833
+                      PATH_EXPR@1827..1828
+                        PATH@1827..1828
+                          PATH_SEGMENT@1827..1828
+                            NAME_REF@1827..1828
+                              IDENT@1827..1828 "i"
+                      WHITESPACE@1828..1829 " "
+                      EQ2@1829..1831 "=="
+                      WHITESPACE@1831..1832 " "
+                      LITERAL@1832..1833
+                        INT_NUMBER@1832..1833 "1"
+                  WHITESPACE@1833..1834 " "
+                  BLOCK_EXPR@1834..1887
+                    BLOCK@1834..1887
+                      L_CURLY@1834..1835 "{"
+                      WHITESPACE@1835..1836 " "
+                      MATCH_EXPR@1836..1885
+                        MATCH_KW@1836..1841 "match"
+                        WHITESPACE@1841..1842 " "
+                        PAREN_EXPR@1842..1852
+                          L_PAREN@1842..1843 "("
+                          CONTINUE_EXPR@1843..1851
+                            CONTINUE_KW@1843..1851 "continue"
+                          R_PAREN@1851..1852 ")"
+                        WHITESPACE@1852..1853 " "
+                        MATCH_ARM_LIST@1853..1885
+                          L_CURLY@1853..1854 "{"
+                          WHITESPACE@1854..1855 " "
+                          MATCH_ARM@1855..1863
+                            LITERAL_PAT@1855..1856
+                              LITERAL@1855..1856
+                                INT_NUMBER@1855..1856 "1"
+                            WHITESPACE@1856..1857 " "
+                            FAT_ARROW@1857..1859 "=>"
+                            WHITESPACE@1859..1860 " "
+                            BLOCK_EXPR@1860..1863
+                              BLOCK@1860..1863
+                                L_CURLY@1860..1861 "{"
+                                WHITESPACE@1861..1862 " "
+                                R_CURLY@1862..1863 "}"
+                          COMMA@1863..1864 ","
+                          WHITESPACE@1864..1865 " "
+                          MATCH_ARM@1865..1883
+                            PLACEHOLDER_PAT@1865..1866
+                              UNDERSCORE@1865..1866 "_"
+                            WHITESPACE@1866..1867 " "
+                            FAT_ARROW@1867..1869 "=>"
+                            WHITESPACE@1869..1870 " "
+                            MACRO_CALL@1870..1883
+                              PATH@1870..1875
+                                PATH_SEGMENT@1870..1875
+                                  NAME_REF@1870..1875
+                                    IDENT@1870..1875 "panic"
+                              BANG@1875..1876 "!"
+                              TOKEN_TREE@1876..1883
+                                L_PAREN@1876..1877 "("
+                                STRING@1877..1882 "\"wat\""
+                                R_PAREN@1882..1883 ")"
+                          WHITESPACE@1883..1884 " "
+                          R_CURLY@1884..1885 "}"
+                      WHITESPACE@1885..1886 " "
+                      R_CURLY@1886..1887 "}"
+              WHITESPACE@1887..1894 "\n      "
+              EXPR_STMT@1894..1900
+                BREAK_EXPR@1894..1899
+                  BREAK_KW@1894..1899 "break"
+                SEMICOLON@1899..1900 ";"
+              WHITESPACE@1900..1901 " "
+              R_CURLY@1901..1902 "}"
+        WHITESPACE@1902..1903 "\n"
+        R_CURLY@1903..1904 "}"
+  WHITESPACE@1904..1906 "\n\n"
+  FN_DEF@1906..1960
+    FN_KW@1906..1908 "fn"
+    WHITESPACE@1908..1909 " "
+    NAME@1909..1921
+      IDENT@1909..1921 "evil_lincoln"
+    PARAM_LIST@1921..1923
+      L_PAREN@1921..1922 "("
+      R_PAREN@1922..1923 ")"
+    WHITESPACE@1923..1924 " "
+    BLOCK_EXPR@1924..1960
+      BLOCK@1924..1960
+        L_CURLY@1924..1925 "{"
+        WHITESPACE@1925..1926 " "
+        LET_STMT@1926..1958
+          LET_KW@1926..1929 "let"
+          WHITESPACE@1929..1930 " "
+          BIND_PAT@1930..1935
+            NAME@1930..1935
+              IDENT@1930..1935 "_evil"
+          WHITESPACE@1935..1936 " "
+          EQ@1936..1937 "="
+          WHITESPACE@1937..1938 " "
+          MACRO_CALL@1938..1957
+            PATH@1938..1945
+              PATH_SEGMENT@1938..1945
+                NAME_REF@1938..1945
+                  IDENT@1938..1945 "println"
+            BANG@1945..1946 "!"
+            TOKEN_TREE@1946..1957
+              L_PAREN@1946..1947 "("
+              STRING@1947..1956 "\"lincoln\""
+              R_PAREN@1956..1957 ")"
+          SEMICOLON@1957..1958 ";"
+        WHITESPACE@1958..1959 " "
+        R_CURLY@1959..1960 "}"
+  WHITESPACE@1960..1962 "\n\n"
+  FN_DEF@1962..2198
+    FN_KW@1962..1964 "fn"
+    WHITESPACE@1964..1965 " "
+    NAME@1965..1969
+      IDENT@1965..1969 "dots"
+    PARAM_LIST@1969..1971
+      L_PAREN@1969..1970 "("
+      R_PAREN@1970..1971 ")"
+    WHITESPACE@1971..1972 " "
+    BLOCK_EXPR@1972..2198
+      BLOCK@1972..2198
+        L_CURLY@1972..1973 "{"
+        WHITESPACE@1973..1978 "\n    "
+        EXPR_STMT@1978..2196
+          MACRO_CALL@1978..2195
+            PATH@1978..1987
+              PATH_SEGMENT@1978..1987
+                NAME_REF@1978..1987
+                  IDENT@1978..1987 "assert_eq"
+            BANG@1987..1988 "!"
+            TOKEN_TREE@1988..2195
+              L_PAREN@1988..1989 "("
+              IDENT@1989..1995 "String"
+              COLON@1995..1996 ":"
+              COLON@1996..1997 ":"
+              IDENT@1997..2001 "from"
+              TOKEN_TREE@2001..2055
+                L_PAREN@2001..2002 "("
+                STRING@2002..2054 "\".................... ..."
+                R_PAREN@2054..2055 ")"
+              COMMA@2055..2056 ","
+              WHITESPACE@2056..2072 "\n               "
+              IDENT@2072..2078 "format"
+              BANG@2078..2079 "!"
+              TOKEN_TREE@2079..2194
+                L_PAREN@2079..2080 "("
+                STRING@2080..2086 "\"{:?}\""
+                COMMA@2086..2087 ","
+                WHITESPACE@2087..2088 " "
+                DOT@2088..2089 "."
+                DOT@2089..2090 "."
+                WHITESPACE@2090..2091 " "
+                DOT@2091..2092 "."
+                DOT@2092..2093 "."
+                WHITESPACE@2093..2094 " "
+                DOT@2094..2095 "."
+                DOT@2095..2096 "."
+                WHITESPACE@2096..2097 " "
+                DOT@2097..2098 "."
+                DOT@2098..2099 "."
+                WHITESPACE@2099..2100 " "
+                DOT@2100..2101 "."
+                DOT@2101..2102 "."
+                WHITESPACE@2102..2103 " "
+                DOT@2103..2104 "."
+                DOT@2104..2105 "."
+                WHITESPACE@2105..2106 " "
+                DOT@2106..2107 "."
+                DOT@2107..2108 "."
+                WHITESPACE@2108..2109 " "
+                DOT@2109..2110 "."
+                DOT@2110..2111 "."
+                WHITESPACE@2111..2112 " "
+                DOT@2112..2113 "."
+                DOT@2113..2114 "."
+                WHITESPACE@2114..2115 " "
+                DOT@2115..2116 "."
+                DOT@2116..2117 "."
+                WHITESPACE@2117..2118 " "
+                DOT@2118..2119 "."
+                DOT@2119..2120 "."
+                WHITESPACE@2120..2121 " "
+                DOT@2121..2122 "."
+                DOT@2122..2123 "."
+                WHITESPACE@2123..2124 " "
+                DOT@2124..2125 "."
+                DOT@2125..2126 "."
+                WHITESPACE@2126..2158 "\n                     ..."
+                DOT@2158..2159 "."
+                DOT@2159..2160 "."
+                WHITESPACE@2160..2161 " "
+                DOT@2161..2162 "."
+                DOT@2162..2163 "."
+                WHITESPACE@2163..2164 " "
+                DOT@2164..2165 "."
+                DOT@2165..2166 "."
+                WHITESPACE@2166..2167 " "
+                DOT@2167..2168 "."
+                DOT@2168..2169 "."
+                WHITESPACE@2169..2170 " "
+                DOT@2170..2171 "."
+                DOT@2171..2172 "."
+                WHITESPACE@2172..2173 " "
+                DOT@2173..2174 "."
+                DOT@2174..2175 "."
+                WHITESPACE@2175..2176 " "
+                DOT@2176..2177 "."
+                DOT@2177..2178 "."
+                WHITESPACE@2178..2179 " "
+                DOT@2179..2180 "."
+                DOT@2180..2181 "."
+                WHITESPACE@2181..2182 " "
+                DOT@2182..2183 "."
+                DOT@2183..2184 "."
+                WHITESPACE@2184..2185 " "
+                DOT@2185..2186 "."
+                DOT@2186..2187 "."
+                WHITESPACE@2187..2188 " "
+                DOT@2188..2189 "."
+                DOT@2189..2190 "."
+                WHITESPACE@2190..2191 " "
+                DOT@2191..2192 "."
+                DOT@2192..2193 "."
+                R_PAREN@2193..2194 ")"
+              R_PAREN@2194..2195 ")"
+          SEMICOLON@2195..2196 ";"
+        WHITESPACE@2196..2197 "\n"
+        R_CURLY@2197..2198 "}"
+  WHITESPACE@2198..2200 "\n\n"
+  FN_DEF@2200..2693
+    FN_KW@2200..2202 "fn"
+    WHITESPACE@2202..2203 " "
+    NAME@2203..2205
+      IDENT@2203..2205 "u8"
+    PARAM_LIST@2205..2213
+      L_PAREN@2205..2206 "("
+      PARAM@2206..2212
+        BIND_PAT@2206..2208
+          NAME@2206..2208
+            IDENT@2206..2208 "u8"
+        COLON@2208..2209 ":"
+        WHITESPACE@2209..2210 " "
+        PATH_TYPE@2210..2212
+          PATH@2210..2212
+            PATH_SEGMENT@2210..2212
+              NAME_REF@2210..2212
+                IDENT@2210..2212 "u8"
+      R_PAREN@2212..2213 ")"
+    WHITESPACE@2213..2214 " "
+    BLOCK_EXPR@2214..2693
+      BLOCK@2214..2693
+        L_CURLY@2214..2215 "{"
+        WHITESPACE@2215..2220 "\n    "
+        IF_EXPR@2220..2691
+          IF_KW@2220..2222 "if"
+          WHITESPACE@2222..2223 " "
+          CONDITION@2223..2232
+            BIN_EXPR@2223..2232
+              PATH_EXPR@2223..2225
+                PATH@2223..2225
+                  PATH_SEGMENT@2223..2225
+                    NAME_REF@2223..2225
+                      IDENT@2223..2225 "u8"
+              WHITESPACE@2225..2226 " "
+              NEQ@2226..2228 "!="
+              WHITESPACE@2228..2229 " "
+              LITERAL@2229..2232
+                INT_NUMBER@2229..2232 "0u8"
+          WHITESPACE@2232..2233 " "
+          BLOCK_EXPR@2233..2691
+            BLOCK@2233..2691
+              L_CURLY@2233..2234 "{"
+              WHITESPACE@2234..2243 "\n        "
+              EXPR_STMT@2243..2685
+                MACRO_CALL@2243..2684
+                  PATH@2243..2252
+                    PATH_SEGMENT@2243..2252
+                      NAME_REF@2243..2252
+                        IDENT@2243..2252 "assert_eq"
+                  BANG@2252..2253 "!"
+                  TOKEN_TREE@2253..2684
+                    L_PAREN@2253..2254 "("
+                    INT_NUMBER@2254..2257 "8u8"
+                    COMMA@2257..2258 ","
+                    WHITESPACE@2258..2259 " "
+                    TOKEN_TREE@2259..2683
+                      L_CURLY@2259..2260 "{"
+                      WHITESPACE@2260..2273 "\n            "
+                      IDENT@2273..2284 "macro_rules"
+                      BANG@2284..2285 "!"
+                      WHITESPACE@2285..2286 " "
+                      IDENT@2286..2288 "u8"
+                      WHITESPACE@2288..2289 " "
+                      TOKEN_TREE@2289..2567
+                        L_CURLY@2289..2290 "{"
+                        WHITESPACE@2290..2307 "\n                "
+                        TOKEN_TREE@2307..2311
+                          L_PAREN@2307..2308 "("
+                          IDENT@2308..2310 "u8"
+                          R_PAREN@2310..2311 ")"
+                        WHITESPACE@2311..2312 " "
+                        EQ@2312..2313 "="
+                        R_ANGLE@2313..2314 ">"
+                        WHITESPACE@2314..2315 " "
+                        TOKEN_TREE@2315..2552
+                          L_CURLY@2315..2316 "{"
+                          WHITESPACE@2316..2337 "\n                    "
+                          MOD_KW@2337..2340 "mod"
+                          WHITESPACE@2340..2341 " "
+                          IDENT@2341..2343 "u8"
+                          WHITESPACE@2343..2344 " "
+                          TOKEN_TREE@2344..2534
+                            L_CURLY@2344..2345 "{"
+                            WHITESPACE@2345..2370 "\n                     ..."
+                            PUB_KW@2370..2373 "pub"
+                            WHITESPACE@2373..2374 " "
+                            FN_KW@2374..2376 "fn"
+                            WHITESPACE@2376..2377 " "
+                            IDENT@2377..2379 "u8"
+                            L_ANGLE@2379..2380 "<"
+                            LIFETIME@2380..2383 "\'u8"
+                            COLON@2383..2384 ":"
+                            WHITESPACE@2384..2385 " "
+                            LIFETIME@2385..2388 "\'u8"
+                            WHITESPACE@2388..2389 " "
+                            PLUS@2389..2390 "+"
+                            WHITESPACE@2390..2391 " "
+                            LIFETIME@2391..2394 "\'u8"
+                            R_ANGLE@2394..2395 ">"
+                            TOKEN_TREE@2395..2408
+                              L_PAREN@2395..2396 "("
+                              IDENT@2396..2398 "u8"
+                              COLON@2398..2399 ":"
+                              WHITESPACE@2399..2400 " "
+                              AMP@2400..2401 "&"
+                              LIFETIME@2401..2404 "\'u8"
+                              WHITESPACE@2404..2405 " "
+                              IDENT@2405..2407 "u8"
+                              R_PAREN@2407..2408 ")"
+                            WHITESPACE@2408..2409 " "
+                            MINUS@2409..2410 "-"
+                            R_ANGLE@2410..2411 ">"
+                            WHITESPACE@2411..2412 " "
+                            AMP@2412..2413 "&"
+                            LIFETIME@2413..2416 "\'u8"
+                            WHITESPACE@2416..2417 " "
+                            IDENT@2417..2419 "u8"
+                            WHITESPACE@2419..2420 " "
+                            TOKEN_TREE@2420..2512
+                              L_CURLY@2420..2421 "{"
+                              WHITESPACE@2421..2450 "\n                     ..."
+                              STRING@2450..2454 "\"u8\""
+                              SEMICOLON@2454..2455 ";"
+                              WHITESPACE@2455..2484 "\n                     ..."
+                              IDENT@2484..2486 "u8"
+                              WHITESPACE@2486..2511 "\n                     ..."
+                              R_CURLY@2511..2512 "}"
+                            WHITESPACE@2512..2533 "\n                    "
+                            R_CURLY@2533..2534 "}"
+                          WHITESPACE@2534..2551 "\n                "
+                          R_CURLY@2551..2552 "}"
+                        SEMICOLON@2552..2553 ";"
+                        WHITESPACE@2553..2566 "\n            "
+                        R_CURLY@2566..2567 "}"
+                      WHITESPACE@2567..2581 "\n\n            "
+                      IDENT@2581..2583 "u8"
+                      BANG@2583..2584 "!"
+                      TOKEN_TREE@2584..2588
+                        L_PAREN@2584..2585 "("
+                        IDENT@2585..2587 "u8"
+                        R_PAREN@2587..2588 ")"
+                      SEMICOLON@2588..2589 ";"
+                      WHITESPACE@2589..2602 "\n            "
+                      LET_KW@2602..2605 "let"
+                      WHITESPACE@2605..2606 " "
+                      AMP@2606..2607 "&"
+                      IDENT@2607..2609 "u8"
+                      COLON@2609..2610 ":"
+                      WHITESPACE@2610..2611 " "
+                      AMP@2611..2612 "&"
+                      IDENT@2612..2614 "u8"
+                      WHITESPACE@2614..2615 " "
+                      EQ@2615..2616 "="
+                      WHITESPACE@2616..2617 " "
+                      IDENT@2617..2619 "u8"
+                      COLON@2619..2620 ":"
+                      COLON@2620..2621 ":"
+                      IDENT@2621..2623 "u8"
+                      TOKEN_TREE@2623..2629
+                        L_PAREN@2623..2624 "("
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diff --git a/crates/ra_syntax/test_data/parser/ok/0036_fully_qualified.rast b/crates/ra_syntax/test_data/parser/ok/0036_fully_qualified.rast
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--- a/crates/ra_syntax/test_data/parser/ok/0036_fully_qualified.rast
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diff --git a/crates/ra_syntax/test_data/parser/ok/0037_mod.rast b/crates/ra_syntax/test_data/parser/ok/0037_mod.rast
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-      L_CURLY@[91; 92) "{"
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+SOURCE_FILE@0..93
+  COMMENT@0..60 "// https://github.com ..."
+  WHITESPACE@60..62 "\n\n"
+  MODULE@62..93
+    COMMENT@62..70 "//! docs"
+    WHITESPACE@70..71 "\n"
+    COMMENT@71..82 "// non-docs"
+    WHITESPACE@82..83 "\n"
+    MOD_KW@83..86 "mod"
+    WHITESPACE@86..87 " "
+    NAME@87..90
+      IDENT@87..90 "foo"
+    WHITESPACE@90..91 " "
+    ITEM_LIST@91..93
+      L_CURLY@91..92 "{"
+      R_CURLY@92..93 "}"
diff --git a/crates/ra_syntax/test_data/parser/ok/0038_where_pred_type.rast b/crates/ra_syntax/test_data/parser/ok/0038_where_pred_type.rast
index 377367914..14d82feb0 100644
--- a/crates/ra_syntax/test_data/parser/ok/0038_where_pred_type.rast
+++ b/crates/ra_syntax/test_data/parser/ok/0038_where_pred_type.rast
@@ -1,43 +1,43 @@
-SOURCE_FILE@[0; 34)
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-    WHITESPACE@[9; 10) " "
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-      WHERE_KW@[10; 15) "where"
-      WHITESPACE@[15; 16) " "
-      WHERE_PRED@[16; 31)
-        TUPLE_TYPE@[16; 26)
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-                  NAME_REF@[28; 31)
-                    IDENT@[28; 31) "Foo"
-    WHITESPACE@[31; 32) " "
-    BLOCK_EXPR@[32; 34)
-      BLOCK@[32; 34)
-        L_CURLY@[32; 33) "{"
-        R_CURLY@[33; 34) "}"
+SOURCE_FILE@0..34
+  FN_DEF@0..34
+    FN_KW@0..2 "fn"
+    WHITESPACE@2..3 " "
+    NAME@3..7
+      IDENT@3..7 "test"
+    PARAM_LIST@7..9
+      L_PAREN@7..8 "("
+      R_PAREN@8..9 ")"
+    WHITESPACE@9..10 " "
+    WHERE_CLAUSE@10..31
+      WHERE_KW@10..15 "where"
+      WHITESPACE@15..16 " "
+      WHERE_PRED@16..31
+        TUPLE_TYPE@16..26
+          L_PAREN@16..17 "("
+          PATH_TYPE@17..20
+            PATH@17..20
+              PATH_SEGMENT@17..20
+                NAME_REF@17..20
+                  IDENT@17..20 "u64"
+          COMMA@20..21 ","
+          WHITESPACE@21..22 " "
+          PATH_TYPE@22..25
+            PATH@22..25
+              PATH_SEGMENT@22..25
+                NAME_REF@22..25
+                  IDENT@22..25 "u64"
+          R_PAREN@25..26 ")"
+        COLON@26..27 ":"
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+        TYPE_BOUND_LIST@28..31
+          TYPE_BOUND@28..31
+            PATH_TYPE@28..31
+              PATH@28..31
+                PATH_SEGMENT@28..31
+                  NAME_REF@28..31
+                    IDENT@28..31 "Foo"
+    WHITESPACE@31..32 " "
+    BLOCK_EXPR@32..34
+      BLOCK@32..34
+        L_CURLY@32..33 "{"
+        R_CURLY@33..34 "}"
diff --git a/crates/ra_syntax/test_data/parser/ok/0039_raw_fn_item.rast b/crates/ra_syntax/test_data/parser/ok/0039_raw_fn_item.rast
index 9936892e9..d38a60665 100644
--- a/crates/ra_syntax/test_data/parser/ok/0039_raw_fn_item.rast
+++ b/crates/ra_syntax/test_data/parser/ok/0039_raw_fn_item.rast
@@ -1,16 +1,16 @@
-SOURCE_FILE@[0; 15)
-  FN_DEF@[0; 14)
-    FN_KW@[0; 2) "fn"
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-    WHITESPACE@[10; 11) " "
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-      BLOCK@[11; 14)
-        L_CURLY@[11; 12) "{"
-        WHITESPACE@[12; 13) "\n"
-        R_CURLY@[13; 14) "}"
-  WHITESPACE@[14; 15) "\n"
+SOURCE_FILE@0..15
+  FN_DEF@0..14
+    FN_KW@0..2 "fn"
+    WHITESPACE@2..3 " "
+    NAME@3..8
+      IDENT@3..8 "r#foo"
+    PARAM_LIST@8..10
+      L_PAREN@8..9 "("
+      R_PAREN@9..10 ")"
+    WHITESPACE@10..11 " "
+    BLOCK_EXPR@11..14
+      BLOCK@11..14
+        L_CURLY@11..12 "{"
+        WHITESPACE@12..13 "\n"
+        R_CURLY@13..14 "}"
+  WHITESPACE@14..15 "\n"
diff --git a/crates/ra_syntax/test_data/parser/ok/0040_raw_struct_item_field.rast b/crates/ra_syntax/test_data/parser/ok/0040_raw_struct_item_field.rast
index 05f2c656f..5640bae0a 100644
--- a/crates/ra_syntax/test_data/parser/ok/0040_raw_struct_item_field.rast
+++ b/crates/ra_syntax/test_data/parser/ok/0040_raw_struct_item_field.rast
@@ -1,22 +1,22 @@
-SOURCE_FILE@[0; 27)
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-    STRUCT_KW@[0; 6) "struct"
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-      IDENT@[7; 8) "S"
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-    RECORD_FIELD_DEF_LIST@[9; 27)
-      L_CURLY@[9; 10) "{"
-      WHITESPACE@[10; 15) "\n    "
-      RECORD_FIELD_DEF@[15; 25)
-        NAME@[15; 20)
-          IDENT@[15; 20) "r#foo"
-        COLON@[20; 21) ":"
-        WHITESPACE@[21; 22) " "
-        PATH_TYPE@[22; 25)
-          PATH@[22; 25)
-            PATH_SEGMENT@[22; 25)
-              NAME_REF@[22; 25)
-                IDENT@[22; 25) "u32"
-      WHITESPACE@[25; 26) "\n"
-      R_CURLY@[26; 27) "}"
+SOURCE_FILE@0..27
+  STRUCT_DEF@0..27
+    STRUCT_KW@0..6 "struct"
+    WHITESPACE@6..7 " "
+    NAME@7..8
+      IDENT@7..8 "S"
+    WHITESPACE@8..9 " "
+    RECORD_FIELD_DEF_LIST@9..27
+      L_CURLY@9..10 "{"
+      WHITESPACE@10..15 "\n    "
+      RECORD_FIELD_DEF@15..25
+        NAME@15..20
+          IDENT@15..20 "r#foo"
+        COLON@20..21 ":"
+        WHITESPACE@21..22 " "
+        PATH_TYPE@22..25
+          PATH@22..25
+            PATH_SEGMENT@22..25
+              NAME_REF@22..25
+                IDENT@22..25 "u32"
+      WHITESPACE@25..26 "\n"
+      R_CURLY@26..27 "}"
diff --git a/crates/ra_syntax/test_data/parser/ok/0041_raw_keywords.rast b/crates/ra_syntax/test_data/parser/ok/0041_raw_keywords.rast
index 825518eda..db25bc2b8 100644
--- a/crates/ra_syntax/test_data/parser/ok/0041_raw_keywords.rast
+++ b/crates/ra_syntax/test_data/parser/ok/0041_raw_keywords.rast
@@ -1,50 +1,50 @@
-SOURCE_FILE@[0; 59)
-  FN_DEF@[0; 59)
-    FN_KW@[0; 2) "fn"
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-      IDENT@[3; 6) "foo"
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-    WHITESPACE@[8; 9) " "
-    BLOCK_EXPR@[9; 59)
-      BLOCK@[9; 59)
-        L_CURLY@[9; 10) "{"
-        WHITESPACE@[10; 11) " "
-        LET_STMT@[11; 29)
-          LET_KW@[11; 14) "let"
-          WHITESPACE@[14; 15) " "
-          BIND_PAT@[15; 23)
-            NAME@[15; 23)
-              IDENT@[15; 23) "r#struct"
-          WHITESPACE@[23; 24) " "
-          EQ@[24; 25) "="
-          WHITESPACE@[25; 26) " "
-          LITERAL@[26; 28)
-            INT_NUMBER@[26; 28) "92"
-          SEMICOLON@[28; 29) ";"
-        WHITESPACE@[29; 30) " "
-        LET_STMT@[30; 57)
-          LET_KW@[30; 33) "let"
-          WHITESPACE@[33; 34) " "
-          BIND_PAT@[34; 41)
-            NAME@[34; 41)
-              IDENT@[34; 41) "r#trait"
-          WHITESPACE@[41; 42) " "
-          EQ@[42; 43) "="
-          WHITESPACE@[43; 44) " "
-          BIN_EXPR@[44; 56)
-            PATH_EXPR@[44; 52)
-              PATH@[44; 52)
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-                    IDENT@[44; 52) "r#struct"
-            WHITESPACE@[52; 53) " "
-            STAR@[53; 54) "*"
-            WHITESPACE@[54; 55) " "
-            LITERAL@[55; 56)
-              INT_NUMBER@[55; 56) "2"
-          SEMICOLON@[56; 57) ";"
-        WHITESPACE@[57; 58) " "
-        R_CURLY@[58; 59) "}"
+SOURCE_FILE@0..59
+  FN_DEF@0..59
+    FN_KW@0..2 "fn"
+    WHITESPACE@2..3 " "
+    NAME@3..6
+      IDENT@3..6 "foo"
+    PARAM_LIST@6..8
+      L_PAREN@6..7 "("
+      R_PAREN@7..8 ")"
+    WHITESPACE@8..9 " "
+    BLOCK_EXPR@9..59
+      BLOCK@9..59
+        L_CURLY@9..10 "{"
+        WHITESPACE@10..11 " "
+        LET_STMT@11..29
+          LET_KW@11..14 "let"
+          WHITESPACE@14..15 " "
+          BIND_PAT@15..23
+            NAME@15..23
+              IDENT@15..23 "r#struct"
+          WHITESPACE@23..24 " "
+          EQ@24..25 "="
+          WHITESPACE@25..26 " "
+          LITERAL@26..28
+            INT_NUMBER@26..28 "92"
+          SEMICOLON@28..29 ";"
+        WHITESPACE@29..30 " "
+        LET_STMT@30..57
+          LET_KW@30..33 "let"
+          WHITESPACE@33..34 " "
+          BIND_PAT@34..41
+            NAME@34..41
+              IDENT@34..41 "r#trait"
+          WHITESPACE@41..42 " "
+          EQ@42..43 "="
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+          BIN_EXPR@44..56
+            PATH_EXPR@44..52
+              PATH@44..52
+                PATH_SEGMENT@44..52
+                  NAME_REF@44..52
+                    IDENT@44..52 "r#struct"
+            WHITESPACE@52..53 " "
+            STAR@53..54 "*"
+            WHITESPACE@54..55 " "
+            LITERAL@55..56
+              INT_NUMBER@55..56 "2"
+          SEMICOLON@56..57 ";"
+        WHITESPACE@57..58 " "
+        R_CURLY@58..59 "}"
diff --git a/crates/ra_syntax/test_data/parser/ok/0042_ufcs_call_list.rast b/crates/ra_syntax/test_data/parser/ok/0042_ufcs_call_list.rast
index 420a62639..9704bea95 100644
--- a/crates/ra_syntax/test_data/parser/ok/0042_ufcs_call_list.rast
+++ b/crates/ra_syntax/test_data/parser/ok/0042_ufcs_call_list.rast
@@ -1,126 +1,126 @@
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-                    IDENT@[117; 130) "unimplemented"
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-                L_PAREN@[131; 132) "("
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-            WHITESPACE@[133; 138) "\n    "
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-      BLOCK@[159; 161)
-        L_CURLY@[159; 160) "{"
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-  WHITESPACE@[161; 163) "\n\n"
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-        R_CURLY@[197; 198) "}"
-  WHITESPACE@[198; 199) "\n"
+SOURCE_FILE@0..199
+  COMMENT@0..60 "// https://github.com ..."
+  WHITESPACE@60..62 "\n\n"
+  STRUCT_DEF@62..73
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+      IDENT@69..72 "Foo"
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+          PATH_TYPE@102..106
+            PATH@102..106
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+                NAME_REF@102..106
+                  IDENT@102..106 "bool"
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+        BLOCK_EXPR@107..139
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+            L_CURLY@107..108 "{"
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+            MACRO_CALL@117..133
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+                PATH_SEGMENT@117..130
+                  NAME_REF@117..130
+                    IDENT@117..130 "unimplemented"
+              BANG@130..131 "!"
+              TOKEN_TREE@131..133
+                L_PAREN@131..132 "("
+                R_PAREN@132..133 ")"
+            WHITESPACE@133..138 "\n    "
+            R_CURLY@138..139 "}"
+      WHITESPACE@139..140 "\n"
+      R_CURLY@140..141 "}"
+  WHITESPACE@141..143 "\n\n"
+  FN_DEF@143..161
+    FN_KW@143..145 "fn"
+    WHITESPACE@145..146 " "
+    NAME@146..149
+      IDENT@146..149 "baz"
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+      L_PAREN@149..150 "("
+      PARAM@150..157
+        PLACEHOLDER_PAT@150..151
+          UNDERSCORE@150..151 "_"
+        COLON@151..152 ":"
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+        PATH_TYPE@153..157
+          PATH@153..157
+            PATH_SEGMENT@153..157
+              NAME_REF@153..157
+                IDENT@153..157 "bool"
+      R_PAREN@157..158 ")"
+    WHITESPACE@158..159 " "
+    BLOCK_EXPR@159..161
+      BLOCK@159..161
+        L_CURLY@159..160 "{"
+        R_CURLY@160..161 "}"
+  WHITESPACE@161..163 "\n\n"
+  FN_DEF@163..198
+    FN_KW@163..165 "fn"
+    WHITESPACE@165..166 " "
+    NAME@166..170
+      IDENT@166..170 "main"
+    PARAM_LIST@170..172
+      L_PAREN@170..171 "("
+      R_PAREN@171..172 ")"
+    WHITESPACE@172..173 " "
+    BLOCK_EXPR@173..198
+      BLOCK@173..198
+        L_CURLY@173..174 "{"
+        WHITESPACE@174..179 "\n    "
+        CALL_EXPR@179..196
+          PATH_EXPR@179..182
+            PATH@179..182
+              PATH_SEGMENT@179..182
+                NAME_REF@179..182
+                  IDENT@179..182 "baz"
+          ARG_LIST@182..196
+            L_PAREN@182..183 "("
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+              PATH_EXPR@183..193
+                PATH@183..193
+                  PATH@183..188
+                    PATH_SEGMENT@183..188
+                      L_ANGLE@183..184 "<"
+                      PATH_TYPE@184..187
+                        PATH@184..187
+                          PATH_SEGMENT@184..187
+                            NAME_REF@184..187
+                              IDENT@184..187 "Foo"
+                      R_ANGLE@187..188 ">"
+                  COLON2@188..190 "::"
+                  PATH_SEGMENT@190..193
+                    NAME_REF@190..193
+                      IDENT@190..193 "bar"
+              ARG_LIST@193..195
+                L_PAREN@193..194 "("
+                R_PAREN@194..195 ")"
+            R_PAREN@195..196 ")"
+        WHITESPACE@196..197 "\n"
+        R_CURLY@197..198 "}"
+  WHITESPACE@198..199 "\n"
diff --git a/crates/ra_syntax/test_data/parser/ok/0043_complex_assignment.rast b/crates/ra_syntax/test_data/parser/ok/0043_complex_assignment.rast
index 3bc0ddbde..6e5b25748 100644
--- a/crates/ra_syntax/test_data/parser/ok/0043_complex_assignment.rast
+++ b/crates/ra_syntax/test_data/parser/ok/0043_complex_assignment.rast
@@ -1,110 +1,110 @@
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diff --git a/crates/ra_syntax/test_data/parser/ok/0044_let_attrs.rast b/crates/ra_syntax/test_data/parser/ok/0044_let_attrs.rast
index 4b2593147..f1eef3be0 100644
--- a/crates/ra_syntax/test_data/parser/ok/0044_let_attrs.rast
+++ b/crates/ra_syntax/test_data/parser/ok/0044_let_attrs.rast
@@ -1,76 +1,76 @@
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+        R_CURLY@164..165 "}"
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diff --git a/crates/ra_syntax/test_data/parser/ok/0045_block_inner_attrs.rast b/crates/ra_syntax/test_data/parser/ok/0045_block_inner_attrs.rast
index 954b3bc2a..f79feec19 100644
--- a/crates/ra_syntax/test_data/parser/ok/0045_block_inner_attrs.rast
+++ b/crates/ra_syntax/test_data/parser/ok/0045_block_inner_attrs.rast
@@ -1,181 +1,181 @@
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diff --git a/crates/ra_syntax/test_data/parser/ok/0046_extern_inner_attributes.rast b/crates/ra_syntax/test_data/parser/ok/0046_extern_inner_attributes.rast
index 92c8df2d6..37594769a 100644
--- a/crates/ra_syntax/test_data/parser/ok/0046_extern_inner_attributes.rast
+++ b/crates/ra_syntax/test_data/parser/ok/0046_extern_inner_attributes.rast
@@ -1,28 +1,28 @@
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diff --git a/crates/ra_syntax/test_data/parser/ok/0047_minus_in_inner_pattern.rast b/crates/ra_syntax/test_data/parser/ok/0047_minus_in_inner_pattern.rast
index de703328a..1cf12d670 100644
--- a/crates/ra_syntax/test_data/parser/ok/0047_minus_in_inner_pattern.rast
+++ b/crates/ra_syntax/test_data/parser/ok/0047_minus_in_inner_pattern.rast
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-      R_CURLY@[366; 367) "}"
-  WHITESPACE@[367; 369) "\n\n"
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-    FN_KW@[369; 371) "fn"
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-      IDENT@[372; 375) "foo"
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-        RANGE_PAT@[376; 386)
-          LITERAL_PAT@[376; 380)
-            MINUS@[376; 377) "-"
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-              INT_NUMBER@[377; 380) "128"
-          DOT2EQ@[380; 383) "..="
-          LITERAL_PAT@[383; 386)
-            LITERAL@[383; 386)
-              INT_NUMBER@[383; 386) "127"
-        COLON@[386; 387) ":"
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-        PATH_TYPE@[388; 390)
-          PATH@[388; 390)
-            PATH_SEGMENT@[388; 390)
-              NAME_REF@[388; 390)
-                IDENT@[388; 390) "i8"
-      R_PAREN@[390; 391) ")"
-    WHITESPACE@[391; 392) " "
-    BLOCK_EXPR@[392; 394)
-      BLOCK@[392; 394)
-        L_CURLY@[392; 393) "{"
-        R_CURLY@[393; 394) "}"
-  WHITESPACE@[394; 395) "\n"
+SOURCE_FILE@0..395
+  COMMENT@0..60 "// https://github.com ..."
+  WHITESPACE@60..62 "\n\n"
+  FN_DEF@62..341
+    FN_KW@62..64 "fn"
+    WHITESPACE@64..65 " "
+    NAME@65..69
+      IDENT@65..69 "main"
+    PARAM_LIST@69..71
+      L_PAREN@69..70 "("
+      R_PAREN@70..71 ")"
+    WHITESPACE@71..72 " "
+    BLOCK_EXPR@72..341
+      BLOCK@72..341
+        L_CURLY@72..73 "{"
+        WHITESPACE@73..78 "\n    "
+        EXPR_STMT@78..141
+          MATCH_EXPR@78..141
+            MATCH_KW@78..83 "match"
+            WHITESPACE@83..84 " "
+            CALL_EXPR@84..92
+              PATH_EXPR@84..88
+                PATH@84..88
+                  PATH_SEGMENT@84..88
+                    NAME_REF@84..88
+                      IDENT@84..88 "Some"
+              ARG_LIST@88..92
+                L_PAREN@88..89 "("
+                PREFIX_EXPR@89..91
+                  MINUS@89..90 "-"
+                  LITERAL@90..91
+                    INT_NUMBER@90..91 "1"
+                R_PAREN@91..92 ")"
+            WHITESPACE@92..93 " "
+            MATCH_ARM_LIST@93..141
+              L_CURLY@93..94 "{"
+              WHITESPACE@94..103 "\n        "
+              MATCH_ARM@103..117
+                TUPLE_STRUCT_PAT@103..111
+                  PATH@103..107
+                    PATH_SEGMENT@103..107
+                      NAME_REF@103..107
+                        IDENT@103..107 "Some"
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+                    MINUS@108..109 "-"
+                    LITERAL@109..110
+                      INT_NUMBER@109..110 "1"
+                  R_PAREN@110..111 ")"
+                WHITESPACE@111..112 " "
+                FAT_ARROW@112..114 "=>"
+                WHITESPACE@114..115 " "
+                TUPLE_EXPR@115..117
+                  L_PAREN@115..116 "("
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+              COMMA@117..118 ","
+              WHITESPACE@118..127 "\n        "
+              MATCH_ARM@127..134
+                PLACEHOLDER_PAT@127..128
+                  UNDERSCORE@127..128 "_"
+                WHITESPACE@128..129 " "
+                FAT_ARROW@129..131 "=>"
+                WHITESPACE@131..132 " "
+                TUPLE_EXPR@132..134
+                  L_PAREN@132..133 "("
+                  R_PAREN@133..134 ")"
+              COMMA@134..135 ","
+              WHITESPACE@135..140 "\n    "
+              R_CURLY@140..141 "}"
+        WHITESPACE@141..147 "\n\n    "
+        EXPR_STMT@147..222
+          MATCH_EXPR@147..222
+            MATCH_KW@147..152 "match"
+            WHITESPACE@152..153 " "
+            CALL_EXPR@153..167
+              PATH_EXPR@153..157
+                PATH@153..157
+                  PATH_SEGMENT@153..157
+                    NAME_REF@153..157
+                      IDENT@153..157 "Some"
+              ARG_LIST@157..167
+                L_PAREN@157..158 "("
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+                  L_PAREN@158..159 "("
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+                    MINUS@159..160 "-"
+                    LITERAL@160..161
+                      INT_NUMBER@160..161 "1"
+                  COMMA@161..162 ","
+                  WHITESPACE@162..163 " "
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+                    MINUS@163..164 "-"
+                    LITERAL@164..165
+                      INT_NUMBER@164..165 "1"
+                  R_PAREN@165..166 ")"
+                R_PAREN@166..167 ")"
+            WHITESPACE@167..168 " "
+            MATCH_ARM_LIST@168..222
+              L_CURLY@168..169 "{"
+              WHITESPACE@169..178 "\n        "
+              MATCH_ARM@178..198
+                TUPLE_STRUCT_PAT@178..192
+                  PATH@178..182
+                    PATH_SEGMENT@178..182
+                      NAME_REF@178..182
+                        IDENT@178..182 "Some"
+                  L_PAREN@182..183 "("
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+                    L_PAREN@183..184 "("
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+                      MINUS@184..185 "-"
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+                        INT_NUMBER@185..186 "1"
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+                      MINUS@188..189 "-"
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+                        INT_NUMBER@189..190 "1"
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+                PLACEHOLDER_PAT@208..209
+                  UNDERSCORE@208..209 "_"
+                WHITESPACE@209..210 " "
+                FAT_ARROW@210..212 "=>"
+                WHITESPACE@212..213 " "
+                TUPLE_EXPR@213..215
+                  L_PAREN@213..214 "("
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+              COMMA@215..216 ","
+              WHITESPACE@216..221 "\n    "
+              R_CURLY@221..222 "}"
+        WHITESPACE@222..228 "\n\n    "
+        EXPR_STMT@228..299
+          MATCH_EXPR@228..299
+            MATCH_KW@228..233 "match"
+            WHITESPACE@233..234 " "
+            CALL_EXPR@234..246
+              PATH_EXPR@234..238
+                PATH@234..238
+                  PATH@234..235
+                    PATH_SEGMENT@234..235
+                      NAME_REF@234..235
+                        IDENT@234..235 "A"
+                  COLON2@235..237 "::"
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+                    NAME_REF@237..238
+                      IDENT@237..238 "B"
+              ARG_LIST@238..246
+                L_PAREN@238..239 "("
+                PREFIX_EXPR@239..241
+                  MINUS@239..240 "-"
+                  LITERAL@240..241
+                    INT_NUMBER@240..241 "1"
+                COMMA@241..242 ","
+                WHITESPACE@242..243 " "
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+                  MINUS@243..244 "-"
+                  LITERAL@244..245
+                    INT_NUMBER@244..245 "1"
+                R_PAREN@245..246 ")"
+            WHITESPACE@246..247 " "
+            MATCH_ARM_LIST@247..299
+              L_CURLY@247..248 "{"
+              WHITESPACE@248..257 "\n        "
+              MATCH_ARM@257..275
+                TUPLE_STRUCT_PAT@257..269
+                  PATH@257..261
+                    PATH@257..258
+                      PATH_SEGMENT@257..258
+                        NAME_REF@257..258
+                          IDENT@257..258 "A"
+                    COLON2@258..260 "::"
+                    PATH_SEGMENT@260..261
+                      NAME_REF@260..261
+                        IDENT@260..261 "B"
+                  L_PAREN@261..262 "("
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+                    MINUS@262..263 "-"
+                    LITERAL@263..264
+                      INT_NUMBER@263..264 "1"
+                  COMMA@264..265 ","
+                  WHITESPACE@265..266 " "
+                  LITERAL_PAT@266..268
+                    MINUS@266..267 "-"
+                    LITERAL@267..268
+                      INT_NUMBER@267..268 "1"
+                  R_PAREN@268..269 ")"
+                WHITESPACE@269..270 " "
+                FAT_ARROW@270..272 "=>"
+                WHITESPACE@272..273 " "
+                TUPLE_EXPR@273..275
+                  L_PAREN@273..274 "("
+                  R_PAREN@274..275 ")"
+              COMMA@275..276 ","
+              WHITESPACE@276..285 "\n        "
+              MATCH_ARM@285..292
+                PLACEHOLDER_PAT@285..286
+                  UNDERSCORE@285..286 "_"
+                WHITESPACE@286..287 " "
+                FAT_ARROW@287..289 "=>"
+                WHITESPACE@289..290 " "
+                TUPLE_EXPR@290..292
+                  L_PAREN@290..291 "("
+                  R_PAREN@291..292 ")"
+              COMMA@292..293 ","
+              WHITESPACE@293..298 "\n    "
+              R_CURLY@298..299 "}"
+        WHITESPACE@299..305 "\n\n    "
+        IF_EXPR@305..339
+          IF_KW@305..307 "if"
+          WHITESPACE@307..308 " "
+          CONDITION@308..331
+            LET_KW@308..311 "let"
+            WHITESPACE@311..312 " "
+            TUPLE_STRUCT_PAT@312..320
+              PATH@312..316
+                PATH_SEGMENT@312..316
+                  NAME_REF@312..316
+                    IDENT@312..316 "Some"
+              L_PAREN@316..317 "("
+              LITERAL_PAT@317..319
+                MINUS@317..318 "-"
+                LITERAL@318..319
+                  INT_NUMBER@318..319 "1"
+              R_PAREN@319..320 ")"
+            WHITESPACE@320..321 " "
+            EQ@321..322 "="
+            WHITESPACE@322..323 " "
+            CALL_EXPR@323..331
+              PATH_EXPR@323..327
+                PATH@323..327
+                  PATH_SEGMENT@323..327
+                    NAME_REF@323..327
+                      IDENT@323..327 "Some"
+              ARG_LIST@327..331
+                L_PAREN@327..328 "("
+                PREFIX_EXPR@328..330
+                  MINUS@328..329 "-"
+                  LITERAL@329..330
+                    INT_NUMBER@329..330 "1"
+                R_PAREN@330..331 ")"
+          WHITESPACE@331..332 " "
+          BLOCK_EXPR@332..339
+            BLOCK@332..339
+              L_CURLY@332..333 "{"
+              WHITESPACE@333..338 "\n    "
+              R_CURLY@338..339 "}"
+        WHITESPACE@339..340 "\n"
+        R_CURLY@340..341 "}"
+  WHITESPACE@341..343 "\n\n"
+  ENUM_DEF@343..367
+    ENUM_KW@343..347 "enum"
+    WHITESPACE@347..348 " "
+    NAME@348..349
+      IDENT@348..349 "A"
+    WHITESPACE@349..350 " "
+    ENUM_VARIANT_LIST@350..367
+      L_CURLY@350..351 "{"
+      WHITESPACE@351..356 "\n    "
+      ENUM_VARIANT@356..365
+        NAME@356..357
+          IDENT@356..357 "B"
+        TUPLE_FIELD_DEF_LIST@357..365
+          L_PAREN@357..358 "("
+          TUPLE_FIELD_DEF@358..360
+            PATH_TYPE@358..360
+              PATH@358..360
+                PATH_SEGMENT@358..360
+                  NAME_REF@358..360
+                    IDENT@358..360 "i8"
+          COMMA@360..361 ","
+          WHITESPACE@361..362 " "
+          TUPLE_FIELD_DEF@362..364
+            PATH_TYPE@362..364
+              PATH@362..364
+                PATH_SEGMENT@362..364
+                  NAME_REF@362..364
+                    IDENT@362..364 "i8"
+          R_PAREN@364..365 ")"
+      WHITESPACE@365..366 "\n"
+      R_CURLY@366..367 "}"
+  WHITESPACE@367..369 "\n\n"
+  FN_DEF@369..394
+    FN_KW@369..371 "fn"
+    WHITESPACE@371..372 " "
+    NAME@372..375
+      IDENT@372..375 "foo"
+    PARAM_LIST@375..391
+      L_PAREN@375..376 "("
+      PARAM@376..390
+        RANGE_PAT@376..386
+          LITERAL_PAT@376..380
+            MINUS@376..377 "-"
+            LITERAL@377..380
+              INT_NUMBER@377..380 "128"
+          DOT2EQ@380..383 "..="
+          LITERAL_PAT@383..386
+            LITERAL@383..386
+              INT_NUMBER@383..386 "127"
+        COLON@386..387 ":"
+        WHITESPACE@387..388 " "
+        PATH_TYPE@388..390
+          PATH@388..390
+            PATH_SEGMENT@388..390
+              NAME_REF@388..390
+                IDENT@388..390 "i8"
+      R_PAREN@390..391 ")"
+    WHITESPACE@391..392 " "
+    BLOCK_EXPR@392..394
+      BLOCK@392..394
+        L_CURLY@392..393 "{"
+        R_CURLY@393..394 "}"
+  WHITESPACE@394..395 "\n"
diff --git a/crates/ra_syntax/test_data/parser/ok/0048_compound_assignment.rast b/crates/ra_syntax/test_data/parser/ok/0048_compound_assignment.rast
index 849d8a445..9c2701bf7 100644
--- a/crates/ra_syntax/test_data/parser/ok/0048_compound_assignment.rast
+++ b/crates/ra_syntax/test_data/parser/ok/0048_compound_assignment.rast
@@ -1,201 +1,201 @@
-SOURCE_FILE@[0; 257)
-  COMMENT@[0; 58) "// https://github.com ..."
-  WHITESPACE@[58; 60) "\n\n"
-  FN_DEF@[60; 256)
-    FN_KW@[60; 62) "fn"
-    WHITESPACE@[62; 63) " "
-    NAME@[63; 82)
-      IDENT@[63; 82) "compound_assignment"
-    PARAM_LIST@[82; 84)
-      L_PAREN@[82; 83) "("
-      R_PAREN@[83; 84) ")"
-    WHITESPACE@[84; 85) " "
-    BLOCK_EXPR@[85; 256)
-      BLOCK@[85; 256)
-        L_CURLY@[85; 86) "{"
-        WHITESPACE@[86; 91) "\n    "
-        LET_STMT@[91; 105)
-          LET_KW@[91; 94) "let"
-          WHITESPACE@[94; 95) " "
-          BIND_PAT@[95; 100)
-            MUT_KW@[95; 98) "mut"
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-              IDENT@[99; 100) "a"
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-            INT_NUMBER@[103; 104) "0"
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-              INT_NUMBER@[139; 140) "3"
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-            LITERAL@[151; 152)
-              INT_NUMBER@[151; 152) "4"
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-        EXPR_STMT@[158; 165)
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-                    IDENT@[158; 159) "a"
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-              INT_NUMBER@[163; 164) "5"
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-                    IDENT@[170; 171) "a"
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-            PIPEEQ@[172; 174) "|="
-            WHITESPACE@[174; 175) " "
-            LITERAL@[175; 176)
-              INT_NUMBER@[175; 176) "6"
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-        WHITESPACE@[177; 182) "\n    "
-        EXPR_STMT@[182; 189)
-          BIN_EXPR@[182; 188)
-            PATH_EXPR@[182; 183)
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-                PATH_SEGMENT@[182; 183)
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-                    IDENT@[182; 183) "a"
-            WHITESPACE@[183; 184) " "
-            AMPEQ@[184; 186) "&="
-            WHITESPACE@[186; 187) " "
-            LITERAL@[187; 188)
-              INT_NUMBER@[187; 188) "7"
-          SEMICOLON@[188; 189) ";"
-        WHITESPACE@[189; 194) "\n    "
-        EXPR_STMT@[194; 201)
-          BIN_EXPR@[194; 200)
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-                    IDENT@[194; 195) "a"
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-            LITERAL@[199; 200)
-              INT_NUMBER@[199; 200) "8"
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-        WHITESPACE@[201; 206) "\n    "
-        EXPR_STMT@[206; 213)
-          BIN_EXPR@[206; 212)
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-              INT_NUMBER@[211; 212) "9"
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-        EXPR_STMT@[218; 226)
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-                    IDENT@[218; 219) "a"
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-              INT_NUMBER@[223; 225) "10"
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-                    IDENT@[231; 232) "a"
-            WHITESPACE@[232; 233) " "
-            SHREQ@[233; 236) ">>="
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-            LITERAL@[237; 239)
-              INT_NUMBER@[237; 239) "11"
-          SEMICOLON@[239; 240) ";"
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-        EXPR_STMT@[245; 254)
-          BIN_EXPR@[245; 253)
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-              PATH@[245; 246)
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-                  NAME_REF@[245; 246)
-                    IDENT@[245; 246) "a"
-            WHITESPACE@[246; 247) " "
-            SHLEQ@[247; 250) "<<="
-            WHITESPACE@[250; 251) " "
-            LITERAL@[251; 253)
-              INT_NUMBER@[251; 253) "12"
-          SEMICOLON@[253; 254) ";"
-        WHITESPACE@[254; 255) "\n"
-        R_CURLY@[255; 256) "}"
-  WHITESPACE@[256; 257) "\n"
+SOURCE_FILE@0..257
+  COMMENT@0..58 "// https://github.com ..."
+  WHITESPACE@58..60 "\n\n"
+  FN_DEF@60..256
+    FN_KW@60..62 "fn"
+    WHITESPACE@62..63 " "
+    NAME@63..82
+      IDENT@63..82 "compound_assignment"
+    PARAM_LIST@82..84
+      L_PAREN@82..83 "("
+      R_PAREN@83..84 ")"
+    WHITESPACE@84..85 " "
+    BLOCK_EXPR@85..256
+      BLOCK@85..256
+        L_CURLY@85..86 "{"
+        WHITESPACE@86..91 "\n    "
+        LET_STMT@91..105
+          LET_KW@91..94 "let"
+          WHITESPACE@94..95 " "
+          BIND_PAT@95..100
+            MUT_KW@95..98 "mut"
+            WHITESPACE@98..99 " "
+            NAME@99..100
+              IDENT@99..100 "a"
+          WHITESPACE@100..101 " "
+          EQ@101..102 "="
+          WHITESPACE@102..103 " "
+          LITERAL@103..104
+            INT_NUMBER@103..104 "0"
+          SEMICOLON@104..105 ";"
+        WHITESPACE@105..110 "\n    "
+        EXPR_STMT@110..117
+          BIN_EXPR@110..116
+            PATH_EXPR@110..111
+              PATH@110..111
+                PATH_SEGMENT@110..111
+                  NAME_REF@110..111
+                    IDENT@110..111 "a"
+            WHITESPACE@111..112 " "
+            PLUSEQ@112..114 "+="
+            WHITESPACE@114..115 " "
+            LITERAL@115..116
+              INT_NUMBER@115..116 "1"
+          SEMICOLON@116..117 ";"
+        WHITESPACE@117..122 "\n    "
+        EXPR_STMT@122..129
+          BIN_EXPR@122..128
+            PATH_EXPR@122..123
+              PATH@122..123
+                PATH_SEGMENT@122..123
+                  NAME_REF@122..123
+                    IDENT@122..123 "a"
+            WHITESPACE@123..124 " "
+            MINUSEQ@124..126 "-="
+            WHITESPACE@126..127 " "
+            LITERAL@127..128
+              INT_NUMBER@127..128 "2"
+          SEMICOLON@128..129 ";"
+        WHITESPACE@129..134 "\n    "
+        EXPR_STMT@134..141
+          BIN_EXPR@134..140
+            PATH_EXPR@134..135
+              PATH@134..135
+                PATH_SEGMENT@134..135
+                  NAME_REF@134..135
+                    IDENT@134..135 "a"
+            WHITESPACE@135..136 " "
+            STAREQ@136..138 "*="
+            WHITESPACE@138..139 " "
+            LITERAL@139..140
+              INT_NUMBER@139..140 "3"
+          SEMICOLON@140..141 ";"
+        WHITESPACE@141..146 "\n    "
+        EXPR_STMT@146..153
+          BIN_EXPR@146..152
+            PATH_EXPR@146..147
+              PATH@146..147
+                PATH_SEGMENT@146..147
+                  NAME_REF@146..147
+                    IDENT@146..147 "a"
+            WHITESPACE@147..148 " "
+            PERCENTEQ@148..150 "%="
+            WHITESPACE@150..151 " "
+            LITERAL@151..152
+              INT_NUMBER@151..152 "4"
+          SEMICOLON@152..153 ";"
+        WHITESPACE@153..158 "\n    "
+        EXPR_STMT@158..165
+          BIN_EXPR@158..164
+            PATH_EXPR@158..159
+              PATH@158..159
+                PATH_SEGMENT@158..159
+                  NAME_REF@158..159
+                    IDENT@158..159 "a"
+            WHITESPACE@159..160 " "
+            SLASHEQ@160..162 "/="
+            WHITESPACE@162..163 " "
+            LITERAL@163..164
+              INT_NUMBER@163..164 "5"
+          SEMICOLON@164..165 ";"
+        WHITESPACE@165..170 "\n    "
+        EXPR_STMT@170..177
+          BIN_EXPR@170..176
+            PATH_EXPR@170..171
+              PATH@170..171
+                PATH_SEGMENT@170..171
+                  NAME_REF@170..171
+                    IDENT@170..171 "a"
+            WHITESPACE@171..172 " "
+            PIPEEQ@172..174 "|="
+            WHITESPACE@174..175 " "
+            LITERAL@175..176
+              INT_NUMBER@175..176 "6"
+          SEMICOLON@176..177 ";"
+        WHITESPACE@177..182 "\n    "
+        EXPR_STMT@182..189
+          BIN_EXPR@182..188
+            PATH_EXPR@182..183
+              PATH@182..183
+                PATH_SEGMENT@182..183
+                  NAME_REF@182..183
+                    IDENT@182..183 "a"
+            WHITESPACE@183..184 " "
+            AMPEQ@184..186 "&="
+            WHITESPACE@186..187 " "
+            LITERAL@187..188
+              INT_NUMBER@187..188 "7"
+          SEMICOLON@188..189 ";"
+        WHITESPACE@189..194 "\n    "
+        EXPR_STMT@194..201
+          BIN_EXPR@194..200
+            PATH_EXPR@194..195
+              PATH@194..195
+                PATH_SEGMENT@194..195
+                  NAME_REF@194..195
+                    IDENT@194..195 "a"
+            WHITESPACE@195..196 " "
+            CARETEQ@196..198 "^="
+            WHITESPACE@198..199 " "
+            LITERAL@199..200
+              INT_NUMBER@199..200 "8"
+          SEMICOLON@200..201 ";"
+        WHITESPACE@201..206 "\n    "
+        EXPR_STMT@206..213
+          BIN_EXPR@206..212
+            PATH_EXPR@206..207
+              PATH@206..207
+                PATH_SEGMENT@206..207
+                  NAME_REF@206..207
+                    IDENT@206..207 "a"
+            WHITESPACE@207..208 " "
+            LTEQ@208..210 "<="
+            WHITESPACE@210..211 " "
+            LITERAL@211..212
+              INT_NUMBER@211..212 "9"
+          SEMICOLON@212..213 ";"
+        WHITESPACE@213..218 "\n    "
+        EXPR_STMT@218..226
+          BIN_EXPR@218..225
+            PATH_EXPR@218..219
+              PATH@218..219
+                PATH_SEGMENT@218..219
+                  NAME_REF@218..219
+                    IDENT@218..219 "a"
+            WHITESPACE@219..220 " "
+            GTEQ@220..222 ">="
+            WHITESPACE@222..223 " "
+            LITERAL@223..225
+              INT_NUMBER@223..225 "10"
+          SEMICOLON@225..226 ";"
+        WHITESPACE@226..231 "\n    "
+        EXPR_STMT@231..240
+          BIN_EXPR@231..239
+            PATH_EXPR@231..232
+              PATH@231..232
+                PATH_SEGMENT@231..232
+                  NAME_REF@231..232
+                    IDENT@231..232 "a"
+            WHITESPACE@232..233 " "
+            SHREQ@233..236 ">>="
+            WHITESPACE@236..237 " "
+            LITERAL@237..239
+              INT_NUMBER@237..239 "11"
+          SEMICOLON@239..240 ";"
+        WHITESPACE@240..245 "\n    "
+        EXPR_STMT@245..254
+          BIN_EXPR@245..253
+            PATH_EXPR@245..246
+              PATH@245..246
+                PATH_SEGMENT@245..246
+                  NAME_REF@245..246
+                    IDENT@245..246 "a"
+            WHITESPACE@246..247 " "
+            SHLEQ@247..250 "<<="
+            WHITESPACE@250..251 " "
+            LITERAL@251..253
+              INT_NUMBER@251..253 "12"
+          SEMICOLON@253..254 ";"
+        WHITESPACE@254..255 "\n"
+        R_CURLY@255..256 "}"
+  WHITESPACE@256..257 "\n"
diff --git a/crates/ra_syntax/test_data/parser/ok/0049_async_block.rast b/crates/ra_syntax/test_data/parser/ok/0049_async_block.rast
index 0d32f0115..750527bb9 100644
--- a/crates/ra_syntax/test_data/parser/ok/0049_async_block.rast
+++ b/crates/ra_syntax/test_data/parser/ok/0049_async_block.rast
@@ -1,36 +1,36 @@
-SOURCE_FILE@[0; 47)
-  FN_DEF@[0; 45)
-    FN_KW@[0; 2) "fn"
-    WHITESPACE@[2; 3) " "
-    NAME@[3; 6)
-      IDENT@[3; 6) "foo"
-    PARAM_LIST@[6; 8)
-      L_PAREN@[6; 7) "("
-      R_PAREN@[7; 8) ")"
-    WHITESPACE@[8; 9) " "
-    BLOCK_EXPR@[9; 45)
-      BLOCK@[9; 45)
-        L_CURLY@[9; 10) "{"
-        WHITESPACE@[10; 15) "\n    "
-        EXPR_STMT@[15; 24)
-          BLOCK_EXPR@[15; 23)
-            ASYNC_KW@[15; 20) "async"
-            WHITESPACE@[20; 21) " "
-            BLOCK@[21; 23)
-              L_CURLY@[21; 22) "{"
-              R_CURLY@[22; 23) "}"
-          SEMICOLON@[23; 24) ";"
-        WHITESPACE@[24; 29) "\n    "
-        EXPR_STMT@[29; 43)
-          BLOCK_EXPR@[29; 42)
-            ASYNC_KW@[29; 34) "async"
-            WHITESPACE@[34; 35) " "
-            MOVE_KW@[35; 39) "move"
-            WHITESPACE@[39; 40) " "
-            BLOCK@[40; 42)
-              L_CURLY@[40; 41) "{"
-              R_CURLY@[41; 42) "}"
-          SEMICOLON@[42; 43) ";"
-        WHITESPACE@[43; 44) "\n"
-        R_CURLY@[44; 45) "}"
-  WHITESPACE@[45; 47) "\n\n"
+SOURCE_FILE@0..47
+  FN_DEF@0..45
+    FN_KW@0..2 "fn"
+    WHITESPACE@2..3 " "
+    NAME@3..6
+      IDENT@3..6 "foo"
+    PARAM_LIST@6..8
+      L_PAREN@6..7 "("
+      R_PAREN@7..8 ")"
+    WHITESPACE@8..9 " "
+    BLOCK_EXPR@9..45
+      BLOCK@9..45
+        L_CURLY@9..10 "{"
+        WHITESPACE@10..15 "\n    "
+        EXPR_STMT@15..24
+          BLOCK_EXPR@15..23
+            ASYNC_KW@15..20 "async"
+            WHITESPACE@20..21 " "
+            BLOCK@21..23
+              L_CURLY@21..22 "{"
+              R_CURLY@22..23 "}"
+          SEMICOLON@23..24 ";"
+        WHITESPACE@24..29 "\n    "
+        EXPR_STMT@29..43
+          BLOCK_EXPR@29..42
+            ASYNC_KW@29..34 "async"
+            WHITESPACE@34..35 " "
+            MOVE_KW@35..39 "move"
+            WHITESPACE@39..40 " "
+            BLOCK@40..42
+              L_CURLY@40..41 "{"
+              R_CURLY@41..42 "}"
+          SEMICOLON@42..43 ";"
+        WHITESPACE@43..44 "\n"
+        R_CURLY@44..45 "}"
+  WHITESPACE@45..47 "\n\n"
diff --git a/crates/ra_syntax/test_data/parser/ok/0050_async_block_as_argument.rast b/crates/ra_syntax/test_data/parser/ok/0050_async_block_as_argument.rast
index 17591d99f..b5577e933 100644
--- a/crates/ra_syntax/test_data/parser/ok/0050_async_block_as_argument.rast
+++ b/crates/ra_syntax/test_data/parser/ok/0050_async_block_as_argument.rast
@@ -1,92 +1,92 @@
-SOURCE_FILE@[0; 95)
-  FN_DEF@[0; 52)
-    FN_KW@[0; 2) "fn"
-    WHITESPACE@[2; 3) " "
-    NAME@[3; 6)
-      IDENT@[3; 6) "foo"
-    PARAM_LIST@[6; 49)
-      L_PAREN@[6; 7) "("
-      PARAM@[7; 48)
-        BIND_PAT@[7; 8)
-          NAME@[7; 8)
-            IDENT@[7; 8) "x"
-        COLON@[8; 9) ":"
-        WHITESPACE@[9; 10) " "
-        IMPL_TRAIT_TYPE@[10; 48)
-          IMPL_KW@[10; 14) "impl"
-          WHITESPACE@[14; 15) " "
-          TYPE_BOUND_LIST@[15; 48)
-            TYPE_BOUND@[15; 48)
-              PATH_TYPE@[15; 48)
-                PATH@[15; 48)
-                  PATH@[15; 26)
-                    PATH@[15; 18)
-                      PATH_SEGMENT@[15; 18)
-                        NAME_REF@[15; 18)
-                          IDENT@[15; 18) "std"
-                    COLON2@[18; 20) "::"
-                    PATH_SEGMENT@[20; 26)
-                      NAME_REF@[20; 26)
-                        IDENT@[20; 26) "future"
-                  COLON2@[26; 28) "::"
-                  PATH_SEGMENT@[28; 48)
-                    NAME_REF@[28; 34)
-                      IDENT@[28; 34) "Future"
-                    TYPE_ARG_LIST@[34; 48)
-                      L_ANGLE@[34; 35) "<"
-                      ASSOC_TYPE_ARG@[35; 47)
-                        NAME_REF@[35; 41)
-                          IDENT@[35; 41) "Output"
-                        WHITESPACE@[41; 42) " "
-                        EQ@[42; 43) "="
-                        WHITESPACE@[43; 44) " "
-                        PATH_TYPE@[44; 47)
-                          PATH@[44; 47)
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-                              NAME_REF@[44; 47)
-                                IDENT@[44; 47) "i32"
-                      R_ANGLE@[47; 48) ">"
-      R_PAREN@[48; 49) ")"
-    WHITESPACE@[49; 50) " "
-    BLOCK_EXPR@[50; 52)
-      BLOCK@[50; 52)
-        L_CURLY@[50; 51) "{"
-        R_CURLY@[51; 52) "}"
-  WHITESPACE@[52; 54) "\n\n"
-  FN_DEF@[54; 94)
-    FN_KW@[54; 56) "fn"
-    WHITESPACE@[56; 57) " "
-    NAME@[57; 61)
-      IDENT@[57; 61) "main"
-    PARAM_LIST@[61; 63)
-      L_PAREN@[61; 62) "("
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-    WHITESPACE@[63; 64) " "
-    BLOCK_EXPR@[64; 94)
-      BLOCK@[64; 94)
-        L_CURLY@[64; 65) "{"
-        WHITESPACE@[65; 70) "\n    "
-        CALL_EXPR@[70; 92)
-          PATH_EXPR@[70; 73)
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-              PATH_SEGMENT@[70; 73)
-                NAME_REF@[70; 73)
-                  IDENT@[70; 73) "foo"
-          ARG_LIST@[73; 92)
-            L_PAREN@[73; 74) "("
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-              ASYNC_KW@[74; 79) "async"
-              WHITESPACE@[79; 80) " "
-              MOVE_KW@[80; 84) "move"
-              WHITESPACE@[84; 85) " "
-              BLOCK@[85; 91)
-                L_CURLY@[85; 86) "{"
-                WHITESPACE@[86; 87) " "
-                LITERAL@[87; 89)
-                  INT_NUMBER@[87; 89) "12"
-                WHITESPACE@[89; 90) " "
-                R_CURLY@[90; 91) "}"
-            R_PAREN@[91; 92) ")"
-        WHITESPACE@[92; 93) "\n"
-        R_CURLY@[93; 94) "}"
-  WHITESPACE@[94; 95) "\n"
+SOURCE_FILE@0..95
+  FN_DEF@0..52
+    FN_KW@0..2 "fn"
+    WHITESPACE@2..3 " "
+    NAME@3..6
+      IDENT@3..6 "foo"
+    PARAM_LIST@6..49
+      L_PAREN@6..7 "("
+      PARAM@7..48
+        BIND_PAT@7..8
+          NAME@7..8
+            IDENT@7..8 "x"
+        COLON@8..9 ":"
+        WHITESPACE@9..10 " "
+        IMPL_TRAIT_TYPE@10..48
+          IMPL_KW@10..14 "impl"
+          WHITESPACE@14..15 " "
+          TYPE_BOUND_LIST@15..48
+            TYPE_BOUND@15..48
+              PATH_TYPE@15..48
+                PATH@15..48
+                  PATH@15..26
+                    PATH@15..18
+                      PATH_SEGMENT@15..18
+                        NAME_REF@15..18
+                          IDENT@15..18 "std"
+                    COLON2@18..20 "::"
+                    PATH_SEGMENT@20..26
+                      NAME_REF@20..26
+                        IDENT@20..26 "future"
+                  COLON2@26..28 "::"
+                  PATH_SEGMENT@28..48
+                    NAME_REF@28..34
+                      IDENT@28..34 "Future"
+                    TYPE_ARG_LIST@34..48
+                      L_ANGLE@34..35 "<"
+                      ASSOC_TYPE_ARG@35..47
+                        NAME_REF@35..41
+                          IDENT@35..41 "Output"
+                        WHITESPACE@41..42 " "
+                        EQ@42..43 "="
+                        WHITESPACE@43..44 " "
+                        PATH_TYPE@44..47
+                          PATH@44..47
+                            PATH_SEGMENT@44..47
+                              NAME_REF@44..47
+                                IDENT@44..47 "i32"
+                      R_ANGLE@47..48 ">"
+      R_PAREN@48..49 ")"
+    WHITESPACE@49..50 " "
+    BLOCK_EXPR@50..52
+      BLOCK@50..52
+        L_CURLY@50..51 "{"
+        R_CURLY@51..52 "}"
+  WHITESPACE@52..54 "\n\n"
+  FN_DEF@54..94
+    FN_KW@54..56 "fn"
+    WHITESPACE@56..57 " "
+    NAME@57..61
+      IDENT@57..61 "main"
+    PARAM_LIST@61..63
+      L_PAREN@61..62 "("
+      R_PAREN@62..63 ")"
+    WHITESPACE@63..64 " "
+    BLOCK_EXPR@64..94
+      BLOCK@64..94
+        L_CURLY@64..65 "{"
+        WHITESPACE@65..70 "\n    "
+        CALL_EXPR@70..92
+          PATH_EXPR@70..73
+            PATH@70..73
+              PATH_SEGMENT@70..73
+                NAME_REF@70..73
+                  IDENT@70..73 "foo"
+          ARG_LIST@73..92
+            L_PAREN@73..74 "("
+            BLOCK_EXPR@74..91
+              ASYNC_KW@74..79 "async"
+              WHITESPACE@79..80 " "
+              MOVE_KW@80..84 "move"
+              WHITESPACE@84..85 " "
+              BLOCK@85..91
+                L_CURLY@85..86 "{"
+                WHITESPACE@86..87 " "
+                LITERAL@87..89
+                  INT_NUMBER@87..89 "12"
+                WHITESPACE@89..90 " "
+                R_CURLY@90..91 "}"
+            R_PAREN@91..92 ")"
+        WHITESPACE@92..93 "\n"
+        R_CURLY@93..94 "}"
+  WHITESPACE@94..95 "\n"
diff --git a/crates/ra_syntax/test_data/parser/ok/0051_parameter_attrs.rast b/crates/ra_syntax/test_data/parser/ok/0051_parameter_attrs.rast
index 8fd28427c..6aacc2141 100644
--- a/crates/ra_syntax/test_data/parser/ok/0051_parameter_attrs.rast
+++ b/crates/ra_syntax/test_data/parser/ok/0051_parameter_attrs.rast
@@ -1,519 +1,519 @@
-SOURCE_FILE@[0; 519)
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-    FN_KW@[0; 2) "fn"
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-    NAME@[3; 5)
-      IDENT@[3; 5) "g1"
-    PARAM_LIST@[5; 34)
-      L_PAREN@[5; 6) "("
-      ATTR@[6; 14)
-        POUND@[6; 7) "#"
-        L_BRACK@[7; 8) "["
-        PATH@[8; 13)
-          PATH_SEGMENT@[8; 13)
-            NAME_REF@[8; 13)
-              IDENT@[8; 13) "attr1"
-        R_BRACK@[13; 14) "]"
-      WHITESPACE@[14; 15) " "
-      ATTR@[15; 23)
-        POUND@[15; 16) "#"
-        L_BRACK@[16; 17) "["
-        PATH@[17; 22)
-          PATH_SEGMENT@[17; 22)
-            NAME_REF@[17; 22)
-              IDENT@[17; 22) "attr2"
-        R_BRACK@[22; 23) "]"
-      WHITESPACE@[23; 24) " "
-      PARAM@[24; 33)
-        BIND_PAT@[24; 27)
-          NAME@[24; 27)
-            IDENT@[24; 27) "pat"
-        COLON@[27; 28) ":"
-        WHITESPACE@[28; 29) " "
-        PATH_TYPE@[29; 33)
-          PATH@[29; 33)
-            PATH_SEGMENT@[29; 33)
-              NAME_REF@[29; 33)
-                IDENT@[29; 33) "Type"
-      R_PAREN@[33; 34) ")"
-    WHITESPACE@[34; 35) " "
-    BLOCK_EXPR@[35; 37)
-      BLOCK@[35; 37)
-        L_CURLY@[35; 36) "{"
-        R_CURLY@[36; 37) "}"
-  WHITESPACE@[37; 38) "\n"
-  FN_DEF@[38; 62)
-    FN_KW@[38; 40) "fn"
-    WHITESPACE@[40; 41) " "
-    NAME@[41; 43)
-      IDENT@[41; 43) "g2"
-    PARAM_LIST@[43; 59)
-      L_PAREN@[43; 44) "("
-      ATTR@[44; 52)
-        POUND@[44; 45) "#"
-        L_BRACK@[45; 46) "["
-        PATH@[46; 51)
-          PATH_SEGMENT@[46; 51)
-            NAME_REF@[46; 51)
-              IDENT@[46; 51) "attr1"
-        R_BRACK@[51; 52) "]"
-      WHITESPACE@[52; 53) " "
-      PARAM@[53; 58)
-        BIND_PAT@[53; 54)
-          NAME@[53; 54)
-            IDENT@[53; 54) "x"
-        COLON@[54; 55) ":"
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-        PATH_TYPE@[56; 58)
-          PATH@[56; 58)
-            PATH_SEGMENT@[56; 58)
-              NAME_REF@[56; 58)
-                IDENT@[56; 58) "u8"
-      R_PAREN@[58; 59) ")"
-    WHITESPACE@[59; 60) " "
-    BLOCK_EXPR@[60; 62)
-      BLOCK@[60; 62)
-        L_CURLY@[60; 61) "{"
-        R_CURLY@[61; 62) "}"
-  WHITESPACE@[62; 64) "\n\n"
-  EXTERN_BLOCK@[64; 128)
-    ABI@[64; 74)
-      EXTERN_KW@[64; 70) "extern"
-      WHITESPACE@[70; 71) " "
-      STRING@[71; 74) "\"C\""
-    WHITESPACE@[74; 75) " "
-    EXTERN_ITEM_LIST@[75; 128)
-      L_CURLY@[75; 76) "{"
-      WHITESPACE@[76; 77) " "
-      FN_DEF@[77; 126)
-        FN_KW@[77; 79) "fn"
-        WHITESPACE@[79; 80) " "
-        NAME@[80; 86)
-          IDENT@[80; 86) "printf"
-        PARAM_LIST@[86; 118)
-          L_PAREN@[86; 87) "("
-          PARAM@[87; 104)
-            BIND_PAT@[87; 93)
-              NAME@[87; 93)
-                IDENT@[87; 93) "format"
-            COLON@[93; 94) ":"
-            WHITESPACE@[94; 95) " "
-            POINTER_TYPE@[95; 104)
-              STAR@[95; 96) "*"
-              CONST_KW@[96; 101) "const"
-              WHITESPACE@[101; 102) " "
-              PATH_TYPE@[102; 104)
-                PATH@[102; 104)
-                  PATH_SEGMENT@[102; 104)
-                    NAME_REF@[102; 104)
-                      IDENT@[102; 104) "i8"
-          COMMA@[104; 105) ","
-          WHITESPACE@[105; 106) " "
-          ATTR@[106; 113)
-            POUND@[106; 107) "#"
-            L_BRACK@[107; 108) "["
-            PATH@[108; 112)
-              PATH_SEGMENT@[108; 112)
-                NAME_REF@[108; 112)
-                  IDENT@[108; 112) "attr"
-            R_BRACK@[112; 113) "]"
-          WHITESPACE@[113; 114) " "
-          PARAM@[114; 117)
-            DOT3@[114; 117) "..."
-          R_PAREN@[117; 118) ")"
-        WHITESPACE@[118; 119) " "
-        RET_TYPE@[119; 125)
-          THIN_ARROW@[119; 121) "->"
-          WHITESPACE@[121; 122) " "
-          PATH_TYPE@[122; 125)
-            PATH@[122; 125)
-              PATH_SEGMENT@[122; 125)
-                NAME_REF@[122; 125)
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+    ITEM_LIST@184..236
+      L_CURLY@184..185 "{"
+      WHITESPACE@185..190 "\n    "
+      FN_DEF@190..234
+        FN_KW@190..192 "fn"
+        WHITESPACE@192..193 " "
+        NAME@193..196
+          IDENT@193..196 "bar"
+        PARAM_LIST@196..233
+          L_PAREN@196..197 "("
+          ATTR@197..204
+            POUND@197..198 "#"
+            L_BRACK@198..199 "["
+            PATH@199..203
+              PATH_SEGMENT@199..203
+                NAME_REF@199..203
+                  IDENT@199..203 "attr"
+            R_BRACK@203..204 "]"
+          WHITESPACE@204..205 " "
+          PARAM@205..211
+            PLACEHOLDER_PAT@205..206
+              UNDERSCORE@205..206 "_"
+            COLON@206..207 ":"
+            WHITESPACE@207..208 " "
+            PATH_TYPE@208..211
+              PATH@208..211
+                PATH_SEGMENT@208..211
+                  NAME_REF@208..211
+                    IDENT@208..211 "u64"
+          COMMA@211..212 ","
+          WHITESPACE@212..213 " "
+          ATTR@213..221
+            POUND@213..214 "#"
+            WHITESPACE@214..215 " "
+            L_BRACK@215..216 "["
+            PATH@216..220
+              PATH_SEGMENT@216..220
+                NAME_REF@216..220
+                  IDENT@216..220 "attr"
+            R_BRACK@220..221 "]"
+          WHITESPACE@221..222 " "
+          PARAM@222..232
+            BIND_PAT@222..227
+              MUT_KW@222..225 "mut"
+              WHITESPACE@225..226 " "
+              NAME@226..227
+                IDENT@226..227 "x"
+            COLON@227..228 ":"
+            WHITESPACE@228..229 " "
+            PATH_TYPE@229..232
+              PATH@229..232
+                PATH_SEGMENT@229..232
+                  NAME_REF@229..232
+                    IDENT@229..232 "i32"
+          R_PAREN@232..233 ")"
+        SEMICOLON@233..234 ";"
+      WHITESPACE@234..235 "\n"
+      R_CURLY@235..236 "}"
+  WHITESPACE@236..238 "\n\n"
+  IMPL_DEF@238..519
+    IMPL_KW@238..242 "impl"
+    WHITESPACE@242..243 " "
+    PATH_TYPE@243..244
+      PATH@243..244
+        PATH_SEGMENT@243..244
+          NAME_REF@243..244
+            IDENT@243..244 "S"
+    WHITESPACE@244..245 " "
+    ITEM_LIST@245..519
+      L_CURLY@245..246 "{"
+      WHITESPACE@246..252 "\n     "
+      FN_DEF@252..277
+        FN_KW@252..254 "fn"
+        WHITESPACE@254..255 " "
+        NAME@255..256
+          IDENT@255..256 "f"
+        PARAM_LIST@256..274
+          L_PAREN@256..257 "("
+          ATTR@257..268
+            POUND@257..258 "#"
+            L_BRACK@258..259 "["
+            PATH@259..267
+              PATH_SEGMENT@259..267
+                NAME_REF@259..267
+                  IDENT@259..267 "must_use"
+            R_BRACK@267..268 "]"
+          WHITESPACE@268..269 " "
+          SELF_PARAM@269..273
+            SELF_KW@269..273 "self"
+          R_PAREN@273..274 ")"
+        WHITESPACE@274..275 " "
+        BLOCK_EXPR@275..277
+          BLOCK@275..277
+            L_CURLY@275..276 "{"
+            R_CURLY@276..277 "}"
+      WHITESPACE@277..283 "\n     "
+      FN_DEF@283..305
+        FN_KW@283..285 "fn"
+        WHITESPACE@285..286 " "
+        NAME@286..288
+          IDENT@286..288 "g1"
+        PARAM_LIST@288..302
+          L_PAREN@288..289 "("
+          ATTR@289..296
+            POUND@289..290 "#"
+            L_BRACK@290..291 "["
+            PATH@291..295
+              PATH_SEGMENT@291..295
+                NAME_REF@291..295
+                  IDENT@291..295 "attr"
+            R_BRACK@295..296 "]"
+          WHITESPACE@296..297 " "
+          SELF_PARAM@297..301
+            SELF_KW@297..301 "self"
+          R_PAREN@301..302 ")"
+        WHITESPACE@302..303 " "
+        BLOCK_EXPR@303..305
+          BLOCK@303..305
+            L_CURLY@303..304 "{"
+            R_CURLY@304..305 "}"
+      WHITESPACE@305..311 "\n     "
+      FN_DEF@311..334
+        FN_KW@311..313 "fn"
+        WHITESPACE@313..314 " "
+        NAME@314..316
+          IDENT@314..316 "g2"
+        PARAM_LIST@316..331
+          L_PAREN@316..317 "("
+          ATTR@317..324
+            POUND@317..318 "#"
+            L_BRACK@318..319 "["
+            PATH@319..323
+              PATH_SEGMENT@319..323
+                NAME_REF@319..323
+                  IDENT@319..323 "attr"
+            R_BRACK@323..324 "]"
+          WHITESPACE@324..325 " "
+          SELF_PARAM@325..330
+            AMP@325..326 "&"
+            SELF_KW@326..330 "self"
+          R_PAREN@330..331 ")"
+        WHITESPACE@331..332 " "
+        BLOCK_EXPR@332..334
+          BLOCK@332..334
+            L_CURLY@332..333 "{"
+            R_CURLY@333..334 "}"
+      WHITESPACE@334..340 "\n     "
+      FN_DEF@340..371
+        FN_KW@340..342 "fn"
+        WHITESPACE@342..343 " "
+        NAME@343..345
+          IDENT@343..345 "g3"
+        TYPE_PARAM_LIST@345..349
+          L_ANGLE@345..346 "<"
+          LIFETIME_PARAM@346..348
+            LIFETIME@346..348 "\'a"
+          R_ANGLE@348..349 ">"
+        PARAM_LIST@349..368
+          L_PAREN@349..350 "("
+          ATTR@350..357
+            POUND@350..351 "#"
+            L_BRACK@351..352 "["
+            PATH@352..356
+              PATH_SEGMENT@352..356
+                NAME_REF@352..356
+                  IDENT@352..356 "attr"
+            R_BRACK@356..357 "]"
+          WHITESPACE@357..358 " "
+          SELF_PARAM@358..367
+            AMP@358..359 "&"
+            MUT_KW@359..362 "mut"
+            WHITESPACE@362..363 " "
+            SELF_KW@363..367 "self"
+          R_PAREN@367..368 ")"
+        WHITESPACE@368..369 " "
+        BLOCK_EXPR@369..371
+          BLOCK@369..371
+            L_CURLY@369..370 "{"
+            R_CURLY@370..371 "}"
+      WHITESPACE@371..377 "\n     "
+      FN_DEF@377..407
+        FN_KW@377..379 "fn"
+        WHITESPACE@379..380 " "
+        NAME@380..382
+          IDENT@380..382 "g4"
+        TYPE_PARAM_LIST@382..386
+          L_ANGLE@382..383 "<"
+          LIFETIME_PARAM@383..385
+            LIFETIME@383..385 "\'a"
+          R_ANGLE@385..386 ">"
+        PARAM_LIST@386..404
+          L_PAREN@386..387 "("
+          ATTR@387..394
+            POUND@387..388 "#"
+            L_BRACK@388..389 "["
+            PATH@389..393
+              PATH_SEGMENT@389..393
+                NAME_REF@389..393
+                  IDENT@389..393 "attr"
+            R_BRACK@393..394 "]"
+          WHITESPACE@394..395 " "
+          SELF_PARAM@395..403
+            AMP@395..396 "&"
+            LIFETIME@396..398 "\'a"
+            WHITESPACE@398..399 " "
+            SELF_KW@399..403 "self"
+          R_PAREN@403..404 ")"
+        WHITESPACE@404..405 " "
+        BLOCK_EXPR@405..407
+          BLOCK@405..407
+            L_CURLY@405..406 "{"
+            R_CURLY@406..407 "}"
+      WHITESPACE@407..413 "\n     "
+      FN_DEF@413..447
+        FN_KW@413..415 "fn"
+        WHITESPACE@415..416 " "
+        NAME@416..418
+          IDENT@416..418 "g5"
+        TYPE_PARAM_LIST@418..422
+          L_ANGLE@418..419 "<"
+          LIFETIME_PARAM@419..421
+            LIFETIME@419..421 "\'a"
+          R_ANGLE@421..422 ">"
+        PARAM_LIST@422..444
+          L_PAREN@422..423 "("
+          ATTR@423..430
+            POUND@423..424 "#"
+            L_BRACK@424..425 "["
+            PATH@425..429
+              PATH_SEGMENT@425..429
+                NAME_REF@425..429
+                  IDENT@425..429 "attr"
+            R_BRACK@429..430 "]"
+          WHITESPACE@430..431 " "
+          SELF_PARAM@431..443
+            AMP@431..432 "&"
+            LIFETIME@432..434 "\'a"
+            WHITESPACE@434..435 " "
+            MUT_KW@435..438 "mut"
+            WHITESPACE@438..439 " "
+            SELF_KW@439..443 "self"
+          R_PAREN@443..444 ")"
+        WHITESPACE@444..445 " "
+        BLOCK_EXPR@445..447
+          BLOCK@445..447
+            L_CURLY@445..446 "{"
+            R_CURLY@446..447 "}"
+      WHITESPACE@447..453 "\n     "
+      FN_DEF@453..480
+        FN_KW@453..455 "fn"
+        WHITESPACE@455..456 " "
+        NAME@456..457
+          IDENT@456..457 "c"
+        PARAM_LIST@457..477
+          L_PAREN@457..458 "("
+          ATTR@458..465
+            POUND@458..459 "#"
+            L_BRACK@459..460 "["
+            PATH@460..464
+              PATH_SEGMENT@460..464
+                NAME_REF@460..464
+                  IDENT@460..464 "attr"
+            R_BRACK@464..465 "]"
+          WHITESPACE@465..466 " "
+          SELF_PARAM@466..476
+            SELF_KW@466..470 "self"
+            COLON@470..471 ":"
+            WHITESPACE@471..472 " "
+            PATH_TYPE@472..476
+              PATH@472..476
+                PATH_SEGMENT@472..476
+                  NAME_REF@472..476
+                    IDENT@472..476 "Self"
+          R_PAREN@476..477 ")"
+        WHITESPACE@477..478 " "
+        BLOCK_EXPR@478..480
+          BLOCK@478..480
+            L_CURLY@478..479 "{"
+            R_CURLY@479..480 "}"
+      WHITESPACE@480..486 "\n     "
+      FN_DEF@486..517
+        FN_KW@486..488 "fn"
+        WHITESPACE@488..489 " "
+        NAME@489..490
+          IDENT@489..490 "d"
+        PARAM_LIST@490..514
+          L_PAREN@490..491 "("
+          ATTR@491..498
+            POUND@491..492 "#"
+            L_BRACK@492..493 "["
+            PATH@493..497
+              PATH_SEGMENT@493..497
+                NAME_REF@493..497
+                  IDENT@493..497 "attr"
+            R_BRACK@497..498 "]"
+          WHITESPACE@498..499 " "
+          SELF_PARAM@499..513
+            SELF_KW@499..503 "self"
+            COLON@503..504 ":"
+            WHITESPACE@504..505 " "
+            PATH_TYPE@505..513
+              PATH@505..513
+                PATH_SEGMENT@505..513
+                  NAME_REF@505..507
+                    IDENT@505..507 "Rc"
+                  TYPE_ARG_LIST@507..513
+                    L_ANGLE@507..508 "<"
+                    TYPE_ARG@508..512
+                      PATH_TYPE@508..512
+                        PATH@508..512
+                          PATH_SEGMENT@508..512
+                            NAME_REF@508..512
+                              IDENT@508..512 "Self"
+                    R_ANGLE@512..513 ">"
+          R_PAREN@513..514 ")"
+        WHITESPACE@514..515 " "
+        BLOCK_EXPR@515..517
+          BLOCK@515..517
+            L_CURLY@515..516 "{"
+            R_CURLY@516..517 "}"
+      WHITESPACE@517..518 "\n"
+      R_CURLY@518..519 "}"
diff --git a/crates/ra_syntax/test_data/parser/ok/0052_for_range_block.rast b/crates/ra_syntax/test_data/parser/ok/0052_for_range_block.rast
index 473966cd4..f376f86a7 100644
--- a/crates/ra_syntax/test_data/parser/ok/0052_for_range_block.rast
+++ b/crates/ra_syntax/test_data/parser/ok/0052_for_range_block.rast
@@ -1,81 +1,81 @@
-SOURCE_FILE@[0; 80)
-  FN_DEF@[0; 79)
-    FN_KW@[0; 2) "fn"
-    WHITESPACE@[2; 3) " "
-    NAME@[3; 6)
-      IDENT@[3; 6) "foo"
-    PARAM_LIST@[6; 8)
-      L_PAREN@[6; 7) "("
-      R_PAREN@[7; 8) ")"
-    WHITESPACE@[8; 9) " "
-    BLOCK_EXPR@[9; 79)
-      BLOCK@[9; 79)
-        L_CURLY@[9; 10) "{"
-        WHITESPACE@[10; 14) "\n   "
-        FOR_EXPR@[14; 77)
-          FOR_KW@[14; 17) "for"
-          WHITESPACE@[17; 18) " "
-          BIND_PAT@[18; 20)
-            NAME@[18; 20)
-              IDENT@[18; 20) "_x"
-          WHITESPACE@[20; 21) " "
-          IN_KW@[21; 23) "in"
-          WHITESPACE@[23; 24) " "
-          RANGE_EXPR@[24; 56)
-            LITERAL@[24; 25)
-              INT_NUMBER@[24; 25) "0"
-            WHITESPACE@[25; 26) " "
-            DOT2@[26; 28) ".."
-            WHITESPACE@[28; 29) " "
-            METHOD_CALL_EXPR@[29; 56)
-              PAREN_EXPR@[29; 43)
-                L_PAREN@[29; 30) "("
-                RANGE_EXPR@[30; 42)
-                  LITERAL@[30; 31)
-                    INT_NUMBER@[30; 31) "0"
-                  WHITESPACE@[31; 32) " "
-                  DOT2@[32; 34) ".."
-                  WHITESPACE@[34; 35) " "
-                  BLOCK_EXPR@[35; 42)
-                    BLOCK@[35; 42)
-                      L_CURLY@[35; 36) "{"
-                      BIN_EXPR@[36; 41)
-                        LITERAL@[36; 37)
-                          INT_NUMBER@[36; 37) "1"
-                        WHITESPACE@[37; 38) " "
-                        PLUS@[38; 39) "+"
-                        WHITESPACE@[39; 40) " "
-                        LITERAL@[40; 41)
-                          INT_NUMBER@[40; 41) "2"
-                      R_CURLY@[41; 42) "}"
-                R_PAREN@[42; 43) ")"
-              DOT@[43; 44) "."
-              NAME_REF@[44; 47)
-                IDENT@[44; 47) "sum"
-              TYPE_ARG_LIST@[47; 54)
-                COLON2@[47; 49) "::"
-                L_ANGLE@[49; 50) "<"
-                TYPE_ARG@[50; 53)
-                  PATH_TYPE@[50; 53)
-                    PATH@[50; 53)
-                      PATH_SEGMENT@[50; 53)
-                        NAME_REF@[50; 53)
-                          IDENT@[50; 53) "u32"
-                R_ANGLE@[53; 54) ">"
-              ARG_LIST@[54; 56)
-                L_PAREN@[54; 55) "("
-                R_PAREN@[55; 56) ")"
-          WHITESPACE@[56; 57) " "
-          BLOCK_EXPR@[57; 77)
-            BLOCK@[57; 77)
-              L_CURLY@[57; 58) "{"
-              WHITESPACE@[58; 66) "\n       "
-              EXPR_STMT@[66; 72)
-                BREAK_EXPR@[66; 71)
-                  BREAK_KW@[66; 71) "break"
-                SEMICOLON@[71; 72) ";"
-              WHITESPACE@[72; 76) "\n   "
-              R_CURLY@[76; 77) "}"
-        WHITESPACE@[77; 78) "\n"
-        R_CURLY@[78; 79) "}"
-  WHITESPACE@[79; 80) "\n"
+SOURCE_FILE@0..80
+  FN_DEF@0..79
+    FN_KW@0..2 "fn"
+    WHITESPACE@2..3 " "
+    NAME@3..6
+      IDENT@3..6 "foo"
+    PARAM_LIST@6..8
+      L_PAREN@6..7 "("
+      R_PAREN@7..8 ")"
+    WHITESPACE@8..9 " "
+    BLOCK_EXPR@9..79
+      BLOCK@9..79
+        L_CURLY@9..10 "{"
+        WHITESPACE@10..14 "\n   "
+        FOR_EXPR@14..77
+          FOR_KW@14..17 "for"
+          WHITESPACE@17..18 " "
+          BIND_PAT@18..20
+            NAME@18..20
+              IDENT@18..20 "_x"
+          WHITESPACE@20..21 " "
+          IN_KW@21..23 "in"
+          WHITESPACE@23..24 " "
+          RANGE_EXPR@24..56
+            LITERAL@24..25
+              INT_NUMBER@24..25 "0"
+            WHITESPACE@25..26 " "
+            DOT2@26..28 ".."
+            WHITESPACE@28..29 " "
+            METHOD_CALL_EXPR@29..56
+              PAREN_EXPR@29..43
+                L_PAREN@29..30 "("
+                RANGE_EXPR@30..42
+                  LITERAL@30..31
+                    INT_NUMBER@30..31 "0"
+                  WHITESPACE@31..32 " "
+                  DOT2@32..34 ".."
+                  WHITESPACE@34..35 " "
+                  BLOCK_EXPR@35..42
+                    BLOCK@35..42
+                      L_CURLY@35..36 "{"
+                      BIN_EXPR@36..41
+                        LITERAL@36..37
+                          INT_NUMBER@36..37 "1"
+                        WHITESPACE@37..38 " "
+                        PLUS@38..39 "+"
+                        WHITESPACE@39..40 " "
+                        LITERAL@40..41
+                          INT_NUMBER@40..41 "2"
+                      R_CURLY@41..42 "}"
+                R_PAREN@42..43 ")"
+              DOT@43..44 "."
+              NAME_REF@44..47
+                IDENT@44..47 "sum"
+              TYPE_ARG_LIST@47..54
+                COLON2@47..49 "::"
+                L_ANGLE@49..50 "<"
+                TYPE_ARG@50..53
+                  PATH_TYPE@50..53
+                    PATH@50..53
+                      PATH_SEGMENT@50..53
+                        NAME_REF@50..53
+                          IDENT@50..53 "u32"
+                R_ANGLE@53..54 ">"
+              ARG_LIST@54..56
+                L_PAREN@54..55 "("
+                R_PAREN@55..56 ")"
+          WHITESPACE@56..57 " "
+          BLOCK_EXPR@57..77
+            BLOCK@57..77
+              L_CURLY@57..58 "{"
+              WHITESPACE@58..66 "\n       "
+              EXPR_STMT@66..72
+                BREAK_EXPR@66..71
+                  BREAK_KW@66..71 "break"
+                SEMICOLON@71..72 ";"
+              WHITESPACE@72..76 "\n   "
+              R_CURLY@76..77 "}"
+        WHITESPACE@77..78 "\n"
+        R_CURLY@78..79 "}"
+  WHITESPACE@79..80 "\n"
diff --git a/crates/ra_syntax/test_data/parser/ok/0053_outer_attribute_on_macro_rules.rast b/crates/ra_syntax/test_data/parser/ok/0053_outer_attribute_on_macro_rules.rast
index 60a491853..be60f7a8e 100644
--- a/crates/ra_syntax/test_data/parser/ok/0053_outer_attribute_on_macro_rules.rast
+++ b/crates/ra_syntax/test_data/parser/ok/0053_outer_attribute_on_macro_rules.rast
@@ -1,39 +1,39 @@
-SOURCE_FILE@[0; 65)
-  MACRO_CALL@[0; 64)
-    COMMENT@[0; 13) "/// Some docs"
-    WHITESPACE@[13; 14) "\n"
-    ATTR@[14; 29)
-      POUND@[14; 15) "#"
-      L_BRACK@[15; 16) "["
-      PATH@[16; 28)
-        PATH_SEGMENT@[16; 28)
-          NAME_REF@[16; 28)
-            IDENT@[16; 28) "macro_export"
-      R_BRACK@[28; 29) "]"
-    WHITESPACE@[29; 30) "\n"
-    PATH@[30; 41)
-      PATH_SEGMENT@[30; 41)
-        NAME_REF@[30; 41)
-          IDENT@[30; 41) "macro_rules"
-    BANG@[41; 42) "!"
-    WHITESPACE@[42; 43) " "
-    NAME@[43; 46)
-      IDENT@[43; 46) "foo"
-    WHITESPACE@[46; 47) " "
-    TOKEN_TREE@[47; 64)
-      L_CURLY@[47; 48) "{"
-      WHITESPACE@[48; 53) "\n    "
-      TOKEN_TREE@[53; 55)
-        L_PAREN@[53; 54) "("
-        R_PAREN@[54; 55) ")"
-      WHITESPACE@[55; 56) " "
-      EQ@[56; 57) "="
-      R_ANGLE@[57; 58) ">"
-      WHITESPACE@[58; 59) " "
-      TOKEN_TREE@[59; 61)
-        L_CURLY@[59; 60) "{"
-        R_CURLY@[60; 61) "}"
-      SEMICOLON@[61; 62) ";"
-      WHITESPACE@[62; 63) "\n"
-      R_CURLY@[63; 64) "}"
-  WHITESPACE@[64; 65) "\n"
+SOURCE_FILE@0..65
+  MACRO_CALL@0..64
+    COMMENT@0..13 "/// Some docs"
+    WHITESPACE@13..14 "\n"
+    ATTR@14..29
+      POUND@14..15 "#"
+      L_BRACK@15..16 "["
+      PATH@16..28
+        PATH_SEGMENT@16..28
+          NAME_REF@16..28
+            IDENT@16..28 "macro_export"
+      R_BRACK@28..29 "]"
+    WHITESPACE@29..30 "\n"
+    PATH@30..41
+      PATH_SEGMENT@30..41
+        NAME_REF@30..41
+          IDENT@30..41 "macro_rules"
+    BANG@41..42 "!"
+    WHITESPACE@42..43 " "
+    NAME@43..46
+      IDENT@43..46 "foo"
+    WHITESPACE@46..47 " "
+    TOKEN_TREE@47..64
+      L_CURLY@47..48 "{"
+      WHITESPACE@48..53 "\n    "
+      TOKEN_TREE@53..55
+        L_PAREN@53..54 "("
+        R_PAREN@54..55 ")"
+      WHITESPACE@55..56 " "
+      EQ@56..57 "="
+      R_ANGLE@57..58 ">"
+      WHITESPACE@58..59 " "
+      TOKEN_TREE@59..61
+        L_CURLY@59..60 "{"
+        R_CURLY@60..61 "}"
+      SEMICOLON@61..62 ";"
+      WHITESPACE@62..63 "\n"
+      R_CURLY@63..64 "}"
+  WHITESPACE@64..65 "\n"
diff --git a/crates/ra_syntax/test_data/parser/ok/0054_qual_path_in_type_arg.rast b/crates/ra_syntax/test_data/parser/ok/0054_qual_path_in_type_arg.rast
index fabf88e8f..f20819bd2 100644
--- a/crates/ra_syntax/test_data/parser/ok/0054_qual_path_in_type_arg.rast
+++ b/crates/ra_syntax/test_data/parser/ok/0054_qual_path_in_type_arg.rast
@@ -1,126 +1,126 @@
-SOURCE_FILE@[0; 88)
-  FN_DEF@[0; 26)
-    FN_KW@[0; 2) "fn"
-    WHITESPACE@[2; 3) " "
-    NAME@[3; 4)
-      IDENT@[3; 4) "a"
-    PARAM_LIST@[4; 6)
-      L_PAREN@[4; 5) "("
-      R_PAREN@[5; 6) ")"
-    WHITESPACE@[6; 7) " "
-    RET_TYPE@[7; 23)
-      THIN_ARROW@[7; 9) "->"
-      WHITESPACE@[9; 10) " "
-      PATH_TYPE@[10; 23)
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+                        REFERENCE_TYPE@77..82
+                          AMP@77..78 "&"
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+                            PATH@78..82
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+                                  NAME_REF@78..79
+                                    IDENT@78..79 "x"
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+                              PATH_SEGMENT@81..82
+                                NAME_REF@81..82
+                                  IDENT@81..82 "Y"
+                      R_PAREN@82..83 ")"
+      R_PAREN@83..84 ")"
+    WHITESPACE@84..85 " "
+    BLOCK_EXPR@85..87
+      BLOCK@85..87
+        L_CURLY@85..86 "{"
+        R_CURLY@86..87 "}"
+  WHITESPACE@87..88 "\n"
diff --git a/crates/ra_syntax/test_data/parser/ok/0055_dot_dot_dot.rast b/crates/ra_syntax/test_data/parser/ok/0055_dot_dot_dot.rast
index 6ac3f1458..dcdb3cc6d 100644
--- a/crates/ra_syntax/test_data/parser/ok/0055_dot_dot_dot.rast
+++ b/crates/ra_syntax/test_data/parser/ok/0055_dot_dot_dot.rast
@@ -1,50 +1,50 @@
-SOURCE_FILE@[0; 49)
-  TYPE_ALIAS_DEF@[0; 12)
-    TYPE_KW@[0; 4) "type"
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-    TUPLE_TYPE@[9; 11)
-      L_PAREN@[9; 10) "("
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-    SEMICOLON@[11; 12) ";"
-  WHITESPACE@[12; 14) "\n\n"
-  FN_DEF@[14; 48)
-    FN_KW@[14; 16) "fn"
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-      L_PAREN@[21; 22) "("
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-    BLOCK_EXPR@[24; 48)
-      BLOCK@[24; 48)
-        L_CURLY@[24; 25) "{"
-        WHITESPACE@[25; 30) "\n    "
-        LET_STMT@[30; 46)
-          LET_KW@[30; 33) "let"
-          WHITESPACE@[33; 34) " "
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-            L_PAREN@[34; 35) "("
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-                COLON2@[37; 39) "::"
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-          TUPLE_EXPR@[43; 45)
-            L_PAREN@[43; 44) "("
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-          SEMICOLON@[45; 46) ";"
-        WHITESPACE@[46; 47) "\n"
-        R_CURLY@[47; 48) "}"
-  WHITESPACE@[48; 49) "\n"
+SOURCE_FILE@0..49
+  TYPE_ALIAS_DEF@0..12
+    TYPE_KW@0..4 "type"
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+      IDENT@5..6 "X"
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+      L_PAREN@9..10 "("
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+            L_PAREN@34..35 "("
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+                COLON2@37..39 "::"
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+                  IDENT@39..40 "X"
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+          TUPLE_EXPR@43..45
+            L_PAREN@43..44 "("
+            R_PAREN@44..45 ")"
+          SEMICOLON@45..46 ";"
+        WHITESPACE@46..47 "\n"
+        R_CURLY@47..48 "}"
+  WHITESPACE@48..49 "\n"
diff --git a/crates/ra_syntax/test_data/parser/ok/0056_neq_in_type.rast b/crates/ra_syntax/test_data/parser/ok/0056_neq_in_type.rast
index 4a4ad84ca..6176a9620 100644
--- a/crates/ra_syntax/test_data/parser/ok/0056_neq_in_type.rast
+++ b/crates/ra_syntax/test_data/parser/ok/0056_neq_in_type.rast
@@ -1,66 +1,66 @@
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-      BLOCK@[10; 70)
-        L_CURLY@[10; 11) "{"
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-          IF_KW@[16; 18) "if"
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-              CAST_EXPR@[19; 40)
-                METHOD_CALL_EXPR@[19; 33)
-                  LITERAL@[19; 25)
-                    FLOAT_NUMBER@[19; 25) "1.0f32"
-                  DOT@[25; 26) "."
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-                    IDENT@[26; 31) "floor"
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-                        IDENT@[37; 40) "i64"
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-              NEQ@[41; 43) "!="
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-              CAST_EXPR@[44; 65)
-                METHOD_CALL_EXPR@[44; 58)
-                  LITERAL@[44; 50)
-                    FLOAT_NUMBER@[44; 50) "1.0f32"
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-        WHITESPACE@[68; 69) "\n"
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-  WHITESPACE@[70; 71) "\n"
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+          IF_KW@16..18 "if"
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+                  LITERAL@19..25
+                    FLOAT_NUMBER@19..25 "1.0f32"
+                  DOT@25..26 "."
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+                    IDENT@26..31 "floor"
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+                    L_PAREN@31..32 "("
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+                        IDENT@37..40 "i64"
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+              CAST_EXPR@44..65
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+                    FLOAT_NUMBER@44..50 "1.0f32"
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+                    IDENT@51..56 "floor"
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+                    L_PAREN@56..57 "("
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+                WHITESPACE@58..59 " "
+                AS_KW@59..61 "as"
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+                  PATH@62..65
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+                      NAME_REF@62..65
+                        IDENT@62..65 "i64"
+          WHITESPACE@65..66 " "
+          BLOCK_EXPR@66..68
+            BLOCK@66..68
+              L_CURLY@66..67 "{"
+              R_CURLY@67..68 "}"
+        WHITESPACE@68..69 "\n"
+        R_CURLY@69..70 "}"
+  WHITESPACE@70..71 "\n"
diff --git a/crates/ra_syntax/test_data/parser/ok/0057_loop_in_call.rast b/crates/ra_syntax/test_data/parser/ok/0057_loop_in_call.rast
index 2c07bde43..342fe23f5 100644
--- a/crates/ra_syntax/test_data/parser/ok/0057_loop_in_call.rast
+++ b/crates/ra_syntax/test_data/parser/ok/0057_loop_in_call.rast
@@ -1,59 +1,59 @@
-SOURCE_FILE@[0; 50)
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-            IDENT@[7; 8) "x"
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-          PATH@[10; 13)
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-              NAME_REF@[10; 13)
-                IDENT@[10; 13) "i32"
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-      BLOCK@[15; 17)
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-    WHITESPACE@[28; 29) " "
-    BLOCK_EXPR@[29; 50)
-      BLOCK@[29; 50)
-        L_CURLY@[29; 30) "{"
-        WHITESPACE@[30; 35) "\n    "
-        EXPR_STMT@[35; 48)
-          CALL_EXPR@[35; 47)
-            PATH_EXPR@[35; 38)
-              PATH@[35; 38)
-                PATH_SEGMENT@[35; 38)
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-                    IDENT@[35; 38) "foo"
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-              L_PAREN@[38; 39) "("
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-                LOOP_KW@[39; 43) "loop"
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-                BLOCK_EXPR@[44; 46)
-                  BLOCK@[44; 46)
-                    L_CURLY@[44; 45) "{"
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-              R_PAREN@[46; 47) ")"
-          SEMICOLON@[47; 48) ";"
-        WHITESPACE@[48; 49) "\n"
-        R_CURLY@[49; 50) "}"
+SOURCE_FILE@0..50
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+      IDENT@3..6 "foo"
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+          NAME@7..8
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+                IDENT@10..13 "i32"
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+    FN_KW@19..21 "fn"
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+      IDENT@22..26 "main"
+    PARAM_LIST@26..28
+      L_PAREN@26..27 "("
+      R_PAREN@27..28 ")"
+    WHITESPACE@28..29 " "
+    BLOCK_EXPR@29..50
+      BLOCK@29..50
+        L_CURLY@29..30 "{"
+        WHITESPACE@30..35 "\n    "
+        EXPR_STMT@35..48
+          CALL_EXPR@35..47
+            PATH_EXPR@35..38
+              PATH@35..38
+                PATH_SEGMENT@35..38
+                  NAME_REF@35..38
+                    IDENT@35..38 "foo"
+            ARG_LIST@38..47
+              L_PAREN@38..39 "("
+              LOOP_EXPR@39..46
+                LOOP_KW@39..43 "loop"
+                WHITESPACE@43..44 " "
+                BLOCK_EXPR@44..46
+                  BLOCK@44..46
+                    L_CURLY@44..45 "{"
+                    R_CURLY@45..46 "}"
+              R_PAREN@46..47 ")"
+          SEMICOLON@47..48 ";"
+        WHITESPACE@48..49 "\n"
+        R_CURLY@49..50 "}"
diff --git a/crates/ra_syntax/test_data/parser/ok/0058_unary_expr_precedence.rast b/crates/ra_syntax/test_data/parser/ok/0058_unary_expr_precedence.rast
index 9de9efbad..360b6e044 100644
--- a/crates/ra_syntax/test_data/parser/ok/0058_unary_expr_precedence.rast
+++ b/crates/ra_syntax/test_data/parser/ok/0058_unary_expr_precedence.rast
@@ -1,97 +1,97 @@
-SOURCE_FILE@[0; 79)
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-    NAME@[3; 6)
-      IDENT@[3; 6) "foo"
-    PARAM_LIST@[6; 8)
-      L_PAREN@[6; 7) "("
-      R_PAREN@[7; 8) ")"
-    WHITESPACE@[8; 9) " "
-    BLOCK_EXPR@[9; 78)
-      BLOCK@[9; 78)
-        L_CURLY@[9; 10) "{"
-        WHITESPACE@[10; 15) "\n    "
-        EXPR_STMT@[15; 27)
-          BIN_EXPR@[15; 26)
-            BIN_EXPR@[15; 22)
-              LITERAL@[15; 16)
-                INT_NUMBER@[15; 16) "1"
-              WHITESPACE@[16; 17) " "
-              PLUS@[17; 18) "+"
-              WHITESPACE@[18; 19) " "
-              PREFIX_EXPR@[19; 22)
-                STAR@[19; 20) "*"
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-                  AMP@[20; 21) "&"
-                  LITERAL@[21; 22)
-                    INT_NUMBER@[21; 22) "2"
-            WHITESPACE@[22; 23) " "
-            PLUS@[23; 24) "+"
-            WHITESPACE@[24; 25) " "
-            LITERAL@[25; 26)
-              INT_NUMBER@[25; 26) "3"
-          SEMICOLON@[26; 27) ";"
-        WHITESPACE@[27; 32) "\n    "
-        EXPR_STMT@[32; 43)
-          CAST_EXPR@[32; 42)
-            PREFIX_EXPR@[32; 35)
-              STAR@[32; 33) "*"
-              REF_EXPR@[33; 35)
-                AMP@[33; 34) "&"
-                LITERAL@[34; 35)
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-                    IDENT@[39; 42) "u64"
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-        WHITESPACE@[43; 48) "\n    "
-        EXPR_STMT@[48; 54)
-          PREFIX_EXPR@[48; 53)
-            STAR@[48; 49) "*"
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-                PATH@[49; 50)
-                  PATH_SEGMENT@[49; 50)
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-                      IDENT@[49; 50) "x"
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-        EXPR_STMT@[59; 65)
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-        WHITESPACE@[65; 70) "\n    "
-        EXPR_STMT@[70; 76)
-          RANGE_EXPR@[70; 75)
-            PREFIX_EXPR@[70; 72)
-              MINUS@[70; 71) "-"
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-                INT_NUMBER@[71; 72) "1"
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-            LITERAL@[74; 75)
-              INT_NUMBER@[74; 75) "2"
-          SEMICOLON@[75; 76) ";"
-        WHITESPACE@[76; 77) "\n"
-        R_CURLY@[77; 78) "}"
-  WHITESPACE@[78; 79) "\n"
+SOURCE_FILE@0..79
+  FN_DEF@0..78
+    FN_KW@0..2 "fn"
+    WHITESPACE@2..3 " "
+    NAME@3..6
+      IDENT@3..6 "foo"
+    PARAM_LIST@6..8
+      L_PAREN@6..7 "("
+      R_PAREN@7..8 ")"
+    WHITESPACE@8..9 " "
+    BLOCK_EXPR@9..78
+      BLOCK@9..78
+        L_CURLY@9..10 "{"
+        WHITESPACE@10..15 "\n    "
+        EXPR_STMT@15..27
+          BIN_EXPR@15..26
+            BIN_EXPR@15..22
+              LITERAL@15..16
+                INT_NUMBER@15..16 "1"
+              WHITESPACE@16..17 " "
+              PLUS@17..18 "+"
+              WHITESPACE@18..19 " "
+              PREFIX_EXPR@19..22
+                STAR@19..20 "*"
+                REF_EXPR@20..22
+                  AMP@20..21 "&"
+                  LITERAL@21..22
+                    INT_NUMBER@21..22 "2"
+            WHITESPACE@22..23 " "
+            PLUS@23..24 "+"
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+              INT_NUMBER@25..26 "3"
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+        EXPR_STMT@32..43
+          CAST_EXPR@32..42
+            PREFIX_EXPR@32..35
+              STAR@32..33 "*"
+              REF_EXPR@33..35
+                AMP@33..34 "&"
+                LITERAL@34..35
+                  INT_NUMBER@34..35 "1"
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+            AS_KW@36..38 "as"
+            WHITESPACE@38..39 " "
+            PATH_TYPE@39..42
+              PATH@39..42
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+                  NAME_REF@39..42
+                    IDENT@39..42 "u64"
+          SEMICOLON@42..43 ";"
+        WHITESPACE@43..48 "\n    "
+        EXPR_STMT@48..54
+          PREFIX_EXPR@48..53
+            STAR@48..49 "*"
+            CALL_EXPR@49..53
+              PATH_EXPR@49..50
+                PATH@49..50
+                  PATH_SEGMENT@49..50
+                    NAME_REF@49..50
+                      IDENT@49..50 "x"
+              ARG_LIST@50..53
+                L_PAREN@50..51 "("
+                LITERAL@51..52
+                  INT_NUMBER@51..52 "1"
+                R_PAREN@52..53 ")"
+          SEMICOLON@53..54 ";"
+        WHITESPACE@54..59 "\n    "
+        EXPR_STMT@59..65
+          REF_EXPR@59..64
+            AMP@59..60 "&"
+            INDEX_EXPR@60..64
+              PATH_EXPR@60..61
+                PATH@60..61
+                  PATH_SEGMENT@60..61
+                    NAME_REF@60..61
+                      IDENT@60..61 "x"
+              L_BRACK@61..62 "["
+              LITERAL@62..63
+                INT_NUMBER@62..63 "1"
+              R_BRACK@63..64 "]"
+          SEMICOLON@64..65 ";"
+        WHITESPACE@65..70 "\n    "
+        EXPR_STMT@70..76
+          RANGE_EXPR@70..75
+            PREFIX_EXPR@70..72
+              MINUS@70..71 "-"
+              LITERAL@71..72
+                INT_NUMBER@71..72 "1"
+            DOT2@72..74 ".."
+            LITERAL@74..75
+              INT_NUMBER@74..75 "2"
+          SEMICOLON@75..76 ";"
+        WHITESPACE@76..77 "\n"
+        R_CURLY@77..78 "}"
+  WHITESPACE@78..79 "\n"
diff --git a/crates/ra_syntax/test_data/parser/ok/0059_loops_in_parens.rast b/crates/ra_syntax/test_data/parser/ok/0059_loops_in_parens.rast
index 101478ce1..225b1d0b6 100644
--- a/crates/ra_syntax/test_data/parser/ok/0059_loops_in_parens.rast
+++ b/crates/ra_syntax/test_data/parser/ok/0059_loops_in_parens.rast
@@ -1,101 +1,101 @@
-SOURCE_FILE@[0; 105)
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-      IDENT@[3; 7) "main"
-    PARAM_LIST@[7; 9)
-      L_PAREN@[7; 8) "("
-      R_PAREN@[8; 9) ")"
-    WHITESPACE@[9; 10) " "
-    BLOCK_EXPR@[10; 104)
-      BLOCK@[10; 104)
-        L_CURLY@[10; 11) "{"
-        WHITESPACE@[11; 16) "\n    "
-        EXPR_STMT@[16; 50)
-          CALL_EXPR@[16; 49)
-            PATH_EXPR@[16; 20)
-              PATH@[16; 20)
-                PATH_SEGMENT@[16; 20)
-                  NAME_REF@[16; 20)
-                    IDENT@[16; 20) "Some"
-            ARG_LIST@[20; 49)
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-                FOR_KW@[21; 24) "for"
-                WHITESPACE@[24; 25) " "
-                PLACEHOLDER_PAT@[25; 26)
-                  UNDERSCORE@[25; 26) "_"
-                WHITESPACE@[26; 27) " "
-                IN_KW@[27; 29) "in"
-                WHITESPACE@[29; 30) " "
-                METHOD_CALL_EXPR@[30; 45)
-                  ARRAY_EXPR@[30; 33)
-                    L_BRACK@[30; 31) "["
-                    LITERAL@[31; 32)
-                      INT_NUMBER@[31; 32) "1"
-                    R_BRACK@[32; 33) "]"
-                  DOT@[33; 34) "."
-                  NAME_REF@[34; 43)
-                    IDENT@[34; 43) "into_iter"
-                  ARG_LIST@[43; 45)
-                    L_PAREN@[43; 44) "("
-                    R_PAREN@[44; 45) ")"
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-                BLOCK_EXPR@[46; 48)
-                  BLOCK@[46; 48)
-                    L_CURLY@[46; 47) "{"
-                    R_CURLY@[47; 48) "}"
-              R_PAREN@[48; 49) ")"
-          SEMICOLON@[49; 50) ";"
-        WHITESPACE@[50; 55) "\n    "
-        EXPR_STMT@[55; 77)
-          CALL_EXPR@[55; 76)
-            PATH_EXPR@[55; 59)
-              PATH@[55; 59)
-                PATH_SEGMENT@[55; 59)
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-                    IDENT@[55; 59) "Some"
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-                    R_CURLY@[74; 75) "}"
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-                WHILE_KW@[87; 92) "while"
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-                CONDITION@[93; 97)
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-                    TRUE_KW@[93; 97) "true"
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-                    L_CURLY@[98; 99) "{"
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-              R_PAREN@[100; 101) ")"
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-        WHITESPACE@[102; 103) "\n"
-        R_CURLY@[103; 104) "}"
-  WHITESPACE@[104; 105) "\n"
+SOURCE_FILE@0..105
+  FN_DEF@0..104
+    FN_KW@0..2 "fn"
+    WHITESPACE@2..3 " "
+    NAME@3..7
+      IDENT@3..7 "main"
+    PARAM_LIST@7..9
+      L_PAREN@7..8 "("
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+    WHITESPACE@9..10 " "
+    BLOCK_EXPR@10..104
+      BLOCK@10..104
+        L_CURLY@10..11 "{"
+        WHITESPACE@11..16 "\n    "
+        EXPR_STMT@16..50
+          CALL_EXPR@16..49
+            PATH_EXPR@16..20
+              PATH@16..20
+                PATH_SEGMENT@16..20
+                  NAME_REF@16..20
+                    IDENT@16..20 "Some"
+            ARG_LIST@20..49
+              L_PAREN@20..21 "("
+              FOR_EXPR@21..48
+                FOR_KW@21..24 "for"
+                WHITESPACE@24..25 " "
+                PLACEHOLDER_PAT@25..26
+                  UNDERSCORE@25..26 "_"
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+                METHOD_CALL_EXPR@30..45
+                  ARRAY_EXPR@30..33
+                    L_BRACK@30..31 "["
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+                      INT_NUMBER@31..32 "1"
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+                  DOT@33..34 "."
+                  NAME_REF@34..43
+                    IDENT@34..43 "into_iter"
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+                    L_PAREN@43..44 "("
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+                BLOCK_EXPR@46..48
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+                    L_CURLY@46..47 "{"
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+              R_PAREN@48..49 ")"
+          SEMICOLON@49..50 ";"
+        WHITESPACE@50..55 "\n    "
+        EXPR_STMT@55..77
+          CALL_EXPR@55..76
+            PATH_EXPR@55..59
+              PATH@55..59
+                PATH_SEGMENT@55..59
+                  NAME_REF@55..59
+                    IDENT@55..59 "Some"
+            ARG_LIST@59..76
+              L_PAREN@59..60 "("
+              LOOP_EXPR@60..75
+                LOOP_KW@60..64 "loop"
+                WHITESPACE@64..65 " "
+                BLOCK_EXPR@65..75
+                  BLOCK@65..75
+                    L_CURLY@65..66 "{"
+                    WHITESPACE@66..67 " "
+                    EXPR_STMT@67..73
+                      BREAK_EXPR@67..72
+                        BREAK_KW@67..72 "break"
+                      SEMICOLON@72..73 ";"
+                    WHITESPACE@73..74 " "
+                    R_CURLY@74..75 "}"
+              R_PAREN@75..76 ")"
+          SEMICOLON@76..77 ";"
+        WHITESPACE@77..82 "\n    "
+        EXPR_STMT@82..102
+          CALL_EXPR@82..101
+            PATH_EXPR@82..86
+              PATH@82..86
+                PATH_SEGMENT@82..86
+                  NAME_REF@82..86
+                    IDENT@82..86 "Some"
+            ARG_LIST@86..101
+              L_PAREN@86..87 "("
+              WHILE_EXPR@87..100
+                WHILE_KW@87..92 "while"
+                WHITESPACE@92..93 " "
+                CONDITION@93..97
+                  LITERAL@93..97
+                    TRUE_KW@93..97 "true"
+                WHITESPACE@97..98 " "
+                BLOCK_EXPR@98..100
+                  BLOCK@98..100
+                    L_CURLY@98..99 "{"
+                    R_CURLY@99..100 "}"
+              R_PAREN@100..101 ")"
+          SEMICOLON@101..102 ";"
+        WHITESPACE@102..103 "\n"
+        R_CURLY@103..104 "}"
+  WHITESPACE@104..105 "\n"
diff --git a/crates/ra_syntax/test_data/parser/ok/0060_as_range.rast b/crates/ra_syntax/test_data/parser/ok/0060_as_range.rast
index 6bff57505..a52a08ed0 100644
--- a/crates/ra_syntax/test_data/parser/ok/0060_as_range.rast
+++ b/crates/ra_syntax/test_data/parser/ok/0060_as_range.rast
@@ -1,56 +1,56 @@
-SOURCE_FILE@[0; 56)
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-    WHITESPACE@[9; 10) " "
-    BLOCK_EXPR@[10; 55)
-      BLOCK@[10; 55)
-        L_CURLY@[10; 11) "{"
-        WHITESPACE@[11; 16) "\n    "
-        EXPR_STMT@[16; 30)
-          RANGE_EXPR@[16; 29)
-            CAST_EXPR@[16; 26)
-              LITERAL@[16; 17)
-                INT_NUMBER@[16; 17) "0"
-              WHITESPACE@[17; 18) " "
-              AS_KW@[18; 20) "as"
-              WHITESPACE@[20; 21) " "
-              PATH_TYPE@[21; 26)
-                PATH@[21; 26)
-                  PATH_SEGMENT@[21; 26)
-                    NAME_REF@[21; 26)
-                      IDENT@[21; 26) "usize"
-            WHITESPACE@[26; 27) " "
-            DOT2@[27; 29) ".."
-          SEMICOLON@[29; 30) ";"
-        WHITESPACE@[30; 35) "\n    "
-        EXPR_STMT@[35; 53)
-          RANGE_EXPR@[35; 52)
-            BIN_EXPR@[35; 49)
-              LITERAL@[35; 36)
-                INT_NUMBER@[35; 36) "1"
-              WHITESPACE@[36; 37) " "
-              PLUS@[37; 38) "+"
-              WHITESPACE@[38; 39) " "
-              CAST_EXPR@[39; 49)
-                LITERAL@[39; 40)
-                  INT_NUMBER@[39; 40) "2"
-                WHITESPACE@[40; 41) " "
-                AS_KW@[41; 43) "as"
-                WHITESPACE@[43; 44) " "
-                PATH_TYPE@[44; 49)
-                  PATH@[44; 49)
-                    PATH_SEGMENT@[44; 49)
-                      NAME_REF@[44; 49)
-                        IDENT@[44; 49) "usize"
-            WHITESPACE@[49; 50) " "
-            DOT2@[50; 52) ".."
-          SEMICOLON@[52; 53) ";"
-        WHITESPACE@[53; 54) "\n"
-        R_CURLY@[54; 55) "}"
-  WHITESPACE@[55; 56) "\n"
+SOURCE_FILE@0..56
+  FN_DEF@0..55
+    FN_KW@0..2 "fn"
+    WHITESPACE@2..3 " "
+    NAME@3..7
+      IDENT@3..7 "main"
+    PARAM_LIST@7..9
+      L_PAREN@7..8 "("
+      R_PAREN@8..9 ")"
+    WHITESPACE@9..10 " "
+    BLOCK_EXPR@10..55
+      BLOCK@10..55
+        L_CURLY@10..11 "{"
+        WHITESPACE@11..16 "\n    "
+        EXPR_STMT@16..30
+          RANGE_EXPR@16..29
+            CAST_EXPR@16..26
+              LITERAL@16..17
+                INT_NUMBER@16..17 "0"
+              WHITESPACE@17..18 " "
+              AS_KW@18..20 "as"
+              WHITESPACE@20..21 " "
+              PATH_TYPE@21..26
+                PATH@21..26
+                  PATH_SEGMENT@21..26
+                    NAME_REF@21..26
+                      IDENT@21..26 "usize"
+            WHITESPACE@26..27 " "
+            DOT2@27..29 ".."
+          SEMICOLON@29..30 ";"
+        WHITESPACE@30..35 "\n    "
+        EXPR_STMT@35..53
+          RANGE_EXPR@35..52
+            BIN_EXPR@35..49
+              LITERAL@35..36
+                INT_NUMBER@35..36 "1"
+              WHITESPACE@36..37 " "
+              PLUS@37..38 "+"
+              WHITESPACE@38..39 " "
+              CAST_EXPR@39..49
+                LITERAL@39..40
+                  INT_NUMBER@39..40 "2"
+                WHITESPACE@40..41 " "
+                AS_KW@41..43 "as"
+                WHITESPACE@43..44 " "
+                PATH_TYPE@44..49
+                  PATH@44..49
+                    PATH_SEGMENT@44..49
+                      NAME_REF@44..49
+                        IDENT@44..49 "usize"
+            WHITESPACE@49..50 " "
+            DOT2@50..52 ".."
+          SEMICOLON@52..53 ";"
+        WHITESPACE@53..54 "\n"
+        R_CURLY@54..55 "}"
+  WHITESPACE@55..56 "\n"
diff --git a/crates/ra_syntax/test_data/parser/ok/0061_match_full_range.rast b/crates/ra_syntax/test_data/parser/ok/0061_match_full_range.rast
index be6774199..b8974c942 100644
--- a/crates/ra_syntax/test_data/parser/ok/0061_match_full_range.rast
+++ b/crates/ra_syntax/test_data/parser/ok/0061_match_full_range.rast
@@ -1,27 +1,27 @@
-SOURCE_FILE@[0; 35)
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-    PARAM_LIST@[7; 9)
-      L_PAREN@[7; 8) "("
-      R_PAREN@[8; 9) ")"
-    WHITESPACE@[9; 10) " "
-    BLOCK_EXPR@[10; 34)
-      BLOCK@[10; 34)
-        L_CURLY@[10; 11) "{"
-        WHITESPACE@[11; 16) "\n    "
-        MATCH_EXPR@[16; 32)
-          MATCH_KW@[16; 21) "match"
-          WHITESPACE@[21; 22) " "
-          RANGE_EXPR@[22; 24)
-            DOT2@[22; 24) ".."
-          WHITESPACE@[24; 25) " "
-          MATCH_ARM_LIST@[25; 32)
-            L_CURLY@[25; 26) "{"
-            WHITESPACE@[26; 31) "\n    "
-            R_CURLY@[31; 32) "}"
-        WHITESPACE@[32; 33) "\n"
-        R_CURLY@[33; 34) "}"
-  WHITESPACE@[34; 35) "\n"
+SOURCE_FILE@0..35
+  FN_DEF@0..34
+    FN_KW@0..2 "fn"
+    WHITESPACE@2..3 " "
+    NAME@3..7
+      IDENT@3..7 "main"
+    PARAM_LIST@7..9
+      L_PAREN@7..8 "("
+      R_PAREN@8..9 ")"
+    WHITESPACE@9..10 " "
+    BLOCK_EXPR@10..34
+      BLOCK@10..34
+        L_CURLY@10..11 "{"
+        WHITESPACE@11..16 "\n    "
+        MATCH_EXPR@16..32
+          MATCH_KW@16..21 "match"
+          WHITESPACE@21..22 " "
+          RANGE_EXPR@22..24
+            DOT2@22..24 ".."
+          WHITESPACE@24..25 " "
+          MATCH_ARM_LIST@25..32
+            L_CURLY@25..26 "{"
+            WHITESPACE@26..31 "\n    "
+            R_CURLY@31..32 "}"
+        WHITESPACE@32..33 "\n"
+        R_CURLY@33..34 "}"
+  WHITESPACE@34..35 "\n"
diff --git a/crates/ra_syntax/test_data/parser/ok/0062_macro_2.0.rast b/crates/ra_syntax/test_data/parser/ok/0062_macro_2.0.rast
index f89d7c0d9..46f370eec 100644
--- a/crates/ra_syntax/test_data/parser/ok/0062_macro_2.0.rast
+++ b/crates/ra_syntax/test_data/parser/ok/0062_macro_2.0.rast
@@ -1,176 +1,176 @@
-SOURCE_FILE@[0; 349)
-  MACRO_DEF@[0; 93)
-    MACRO_KW@[0; 5) "macro"
-    WHITESPACE@[5; 6) " "
-    NAME@[6; 21)
-      IDENT@[6; 21) "parse_use_trees"
-    TOKEN_TREE@[21; 93)
-      TOKEN_TREE@[21; 41)
-        L_PAREN@[21; 22) "("
-        DOLLAR@[22; 23) "$"
-        TOKEN_TREE@[23; 32)
-          L_PAREN@[23; 24) "("
-          DOLLAR@[24; 25) "$"
-          IDENT@[25; 26) "s"
-          COLON@[26; 27) ":"
-          IDENT@[27; 31) "expr"
-          R_PAREN@[31; 32) ")"
-        COMMA@[32; 33) ","
-        STAR@[33; 34) "*"
-        WHITESPACE@[34; 35) " "
-        DOLLAR@[35; 36) "$"
-        TOKEN_TREE@[36; 39)
-          L_PAREN@[36; 37) "("
-          COMMA@[37; 38) ","
-          R_PAREN@[38; 39) ")"
-        STAR@[39; 40) "*"
-        R_PAREN@[40; 41) ")"
-      WHITESPACE@[41; 42) " "
-      TOKEN_TREE@[42; 93)
-        L_CURLY@[42; 43) "{"
-        WHITESPACE@[43; 48) "\n    "
-        IDENT@[48; 51) "vec"
-        BANG@[51; 52) "!"
-        TOKEN_TREE@[52; 91)
-          L_BRACK@[52; 53) "["
-          WHITESPACE@[53; 62) "\n        "
-          DOLLAR@[62; 63) "$"
-          TOKEN_TREE@[63; 84)
-            L_PAREN@[63; 64) "("
-            IDENT@[64; 78) "parse_use_tree"
-            TOKEN_TREE@[78; 82)
-              L_PAREN@[78; 79) "("
-              DOLLAR@[79; 80) "$"
-              IDENT@[80; 81) "s"
-              R_PAREN@[81; 82) ")"
-            COMMA@[82; 83) ","
-            R_PAREN@[83; 84) ")"
-          STAR@[84; 85) "*"
-          WHITESPACE@[85; 90) "\n    "
-          R_BRACK@[90; 91) "]"
-        WHITESPACE@[91; 92) "\n"
-        R_CURLY@[92; 93) "}"
-  WHITESPACE@[93; 95) "\n\n"
-  FN_DEF@[95; 348)
-    ATTR@[95; 102)
-      POUND@[95; 96) "#"
-      L_BRACK@[96; 97) "["
-      PATH@[97; 101)
-        PATH_SEGMENT@[97; 101)
-          NAME_REF@[97; 101)
-            IDENT@[97; 101) "test"
-      R_BRACK@[101; 102) "]"
-    WHITESPACE@[102; 103) "\n"
-    FN_KW@[103; 105) "fn"
-    WHITESPACE@[105; 106) " "
-    NAME@[106; 125)
-      IDENT@[106; 125) "test_use_tree_merge"
-    PARAM_LIST@[125; 127)
-      L_PAREN@[125; 126) "("
-      R_PAREN@[126; 127) ")"
-    WHITESPACE@[127; 128) " "
-    BLOCK_EXPR@[128; 348)
-      BLOCK@[128; 348)
-        L_CURLY@[128; 129) "{"
-        WHITESPACE@[129; 134) "\n    "
-        MACRO_DEF@[134; 346)
-          MACRO_KW@[134; 139) "macro"
-          WHITESPACE@[139; 140) " "
-          NAME@[140; 150)
-            IDENT@[140; 150) "test_merge"
-          TOKEN_TREE@[150; 346)
-            TOKEN_TREE@[150; 203)
-              L_PAREN@[150; 151) "("
-              TOKEN_TREE@[151; 175)
-                L_BRACK@[151; 152) "["
-                DOLLAR@[152; 153) "$"
-                TOKEN_TREE@[153; 166)
-                  L_PAREN@[153; 154) "("
-                  DOLLAR@[154; 155) "$"
-                  IDENT@[155; 160) "input"
-                  COLON@[160; 161) ":"
-                  IDENT@[161; 165) "expr"
-                  R_PAREN@[165; 166) ")"
-                COMMA@[166; 167) ","
-                STAR@[167; 168) "*"
-                WHITESPACE@[168; 169) " "
-                DOLLAR@[169; 170) "$"
-                TOKEN_TREE@[170; 173)
-                  L_PAREN@[170; 171) "("
-                  COMMA@[171; 172) ","
-                  R_PAREN@[172; 173) ")"
-                STAR@[173; 174) "*"
-                R_BRACK@[174; 175) "]"
-              COMMA@[175; 176) ","
-              WHITESPACE@[176; 177) " "
-              TOKEN_TREE@[177; 202)
-                L_BRACK@[177; 178) "["
-                DOLLAR@[178; 179) "$"
-                TOKEN_TREE@[179; 193)
-                  L_PAREN@[179; 180) "("
-                  DOLLAR@[180; 181) "$"
-                  IDENT@[181; 187) "output"
-                  COLON@[187; 188) ":"
-                  IDENT@[188; 192) "expr"
-                  R_PAREN@[192; 193) ")"
-                COMMA@[193; 194) ","
-                STAR@[194; 195) "*"
-                WHITESPACE@[195; 196) " "
-                DOLLAR@[196; 197) "$"
-                TOKEN_TREE@[197; 200)
-                  L_PAREN@[197; 198) "("
-                  COMMA@[198; 199) ","
-                  R_PAREN@[199; 200) ")"
-                STAR@[200; 201) "*"
-                R_BRACK@[201; 202) "]"
-              R_PAREN@[202; 203) ")"
-            WHITESPACE@[203; 204) " "
-            TOKEN_TREE@[204; 346)
-              L_CURLY@[204; 205) "{"
-              WHITESPACE@[205; 214) "\n        "
-              IDENT@[214; 223) "assert_eq"
-              BANG@[223; 224) "!"
-              TOKEN_TREE@[224; 339)
-                L_PAREN@[224; 225) "("
-                WHITESPACE@[225; 238) "\n            "
-                IDENT@[238; 253) "merge_use_trees"
-                TOKEN_TREE@[253; 284)
-                  L_PAREN@[253; 254) "("
-                  IDENT@[254; 269) "parse_use_trees"
-                  BANG@[269; 270) "!"
-                  TOKEN_TREE@[270; 283)
-                    L_PAREN@[270; 271) "("
-                    DOLLAR@[271; 272) "$"
-                    TOKEN_TREE@[272; 281)
-                      L_PAREN@[272; 273) "("
-                      DOLLAR@[273; 274) "$"
-                      IDENT@[274; 279) "input"
-                      COMMA@[279; 280) ","
-                      R_PAREN@[280; 281) ")"
-                    STAR@[281; 282) "*"
-                    R_PAREN@[282; 283) ")"
-                  R_PAREN@[283; 284) ")"
-                COMMA@[284; 285) ","
-                WHITESPACE@[285; 298) "\n            "
-                IDENT@[298; 313) "parse_use_trees"
-                BANG@[313; 314) "!"
-                TOKEN_TREE@[314; 328)
-                  L_PAREN@[314; 315) "("
-                  DOLLAR@[315; 316) "$"
-                  TOKEN_TREE@[316; 326)
-                    L_PAREN@[316; 317) "("
-                    DOLLAR@[317; 318) "$"
-                    IDENT@[318; 324) "output"
-                    COMMA@[324; 325) ","
-                    R_PAREN@[325; 326) ")"
-                  STAR@[326; 327) "*"
-                  R_PAREN@[327; 328) ")"
-                COMMA@[328; 329) ","
-                WHITESPACE@[329; 338) "\n        "
-                R_PAREN@[338; 339) ")"
-              SEMICOLON@[339; 340) ";"
-              WHITESPACE@[340; 345) "\n    "
-              R_CURLY@[345; 346) "}"
-        WHITESPACE@[346; 347) "\n"
-        R_CURLY@[347; 348) "}"
-  WHITESPACE@[348; 349) "\n"
+SOURCE_FILE@0..349
+  MACRO_DEF@0..93
+    MACRO_KW@0..5 "macro"
+    WHITESPACE@5..6 " "
+    NAME@6..21
+      IDENT@6..21 "parse_use_trees"
+    TOKEN_TREE@21..93
+      TOKEN_TREE@21..41
+        L_PAREN@21..22 "("
+        DOLLAR@22..23 "$"
+        TOKEN_TREE@23..32
+          L_PAREN@23..24 "("
+          DOLLAR@24..25 "$"
+          IDENT@25..26 "s"
+          COLON@26..27 ":"
+          IDENT@27..31 "expr"
+          R_PAREN@31..32 ")"
+        COMMA@32..33 ","
+        STAR@33..34 "*"
+        WHITESPACE@34..35 " "
+        DOLLAR@35..36 "$"
+        TOKEN_TREE@36..39
+          L_PAREN@36..37 "("
+          COMMA@37..38 ","
+          R_PAREN@38..39 ")"
+        STAR@39..40 "*"
+        R_PAREN@40..41 ")"
+      WHITESPACE@41..42 " "
+      TOKEN_TREE@42..93
+        L_CURLY@42..43 "{"
+        WHITESPACE@43..48 "\n    "
+        IDENT@48..51 "vec"
+        BANG@51..52 "!"
+        TOKEN_TREE@52..91
+          L_BRACK@52..53 "["
+          WHITESPACE@53..62 "\n        "
+          DOLLAR@62..63 "$"
+          TOKEN_TREE@63..84
+            L_PAREN@63..64 "("
+            IDENT@64..78 "parse_use_tree"
+            TOKEN_TREE@78..82
+              L_PAREN@78..79 "("
+              DOLLAR@79..80 "$"
+              IDENT@80..81 "s"
+              R_PAREN@81..82 ")"
+            COMMA@82..83 ","
+            R_PAREN@83..84 ")"
+          STAR@84..85 "*"
+          WHITESPACE@85..90 "\n    "
+          R_BRACK@90..91 "]"
+        WHITESPACE@91..92 "\n"
+        R_CURLY@92..93 "}"
+  WHITESPACE@93..95 "\n\n"
+  FN_DEF@95..348
+    ATTR@95..102
+      POUND@95..96 "#"
+      L_BRACK@96..97 "["
+      PATH@97..101
+        PATH_SEGMENT@97..101
+          NAME_REF@97..101
+            IDENT@97..101 "test"
+      R_BRACK@101..102 "]"
+    WHITESPACE@102..103 "\n"
+    FN_KW@103..105 "fn"
+    WHITESPACE@105..106 " "
+    NAME@106..125
+      IDENT@106..125 "test_use_tree_merge"
+    PARAM_LIST@125..127
+      L_PAREN@125..126 "("
+      R_PAREN@126..127 ")"
+    WHITESPACE@127..128 " "
+    BLOCK_EXPR@128..348
+      BLOCK@128..348
+        L_CURLY@128..129 "{"
+        WHITESPACE@129..134 "\n    "
+        MACRO_DEF@134..346
+          MACRO_KW@134..139 "macro"
+          WHITESPACE@139..140 " "
+          NAME@140..150
+            IDENT@140..150 "test_merge"
+          TOKEN_TREE@150..346
+            TOKEN_TREE@150..203
+              L_PAREN@150..151 "("
+              TOKEN_TREE@151..175
+                L_BRACK@151..152 "["
+                DOLLAR@152..153 "$"
+                TOKEN_TREE@153..166
+                  L_PAREN@153..154 "("
+                  DOLLAR@154..155 "$"
+                  IDENT@155..160 "input"
+                  COLON@160..161 ":"
+                  IDENT@161..165 "expr"
+                  R_PAREN@165..166 ")"
+                COMMA@166..167 ","
+                STAR@167..168 "*"
+                WHITESPACE@168..169 " "
+                DOLLAR@169..170 "$"
+                TOKEN_TREE@170..173
+                  L_PAREN@170..171 "("
+                  COMMA@171..172 ","
+                  R_PAREN@172..173 ")"
+                STAR@173..174 "*"
+                R_BRACK@174..175 "]"
+              COMMA@175..176 ","
+              WHITESPACE@176..177 " "
+              TOKEN_TREE@177..202
+                L_BRACK@177..178 "["
+                DOLLAR@178..179 "$"
+                TOKEN_TREE@179..193
+                  L_PAREN@179..180 "("
+                  DOLLAR@180..181 "$"
+                  IDENT@181..187 "output"
+                  COLON@187..188 ":"
+                  IDENT@188..192 "expr"
+                  R_PAREN@192..193 ")"
+                COMMA@193..194 ","
+                STAR@194..195 "*"
+                WHITESPACE@195..196 " "
+                DOLLAR@196..197 "$"
+                TOKEN_TREE@197..200
+                  L_PAREN@197..198 "("
+                  COMMA@198..199 ","
+                  R_PAREN@199..200 ")"
+                STAR@200..201 "*"
+                R_BRACK@201..202 "]"
+              R_PAREN@202..203 ")"
+            WHITESPACE@203..204 " "
+            TOKEN_TREE@204..346
+              L_CURLY@204..205 "{"
+              WHITESPACE@205..214 "\n        "
+              IDENT@214..223 "assert_eq"
+              BANG@223..224 "!"
+              TOKEN_TREE@224..339
+                L_PAREN@224..225 "("
+                WHITESPACE@225..238 "\n            "
+                IDENT@238..253 "merge_use_trees"
+                TOKEN_TREE@253..284
+                  L_PAREN@253..254 "("
+                  IDENT@254..269 "parse_use_trees"
+                  BANG@269..270 "!"
+                  TOKEN_TREE@270..283
+                    L_PAREN@270..271 "("
+                    DOLLAR@271..272 "$"
+                    TOKEN_TREE@272..281
+                      L_PAREN@272..273 "("
+                      DOLLAR@273..274 "$"
+                      IDENT@274..279 "input"
+                      COMMA@279..280 ","
+                      R_PAREN@280..281 ")"
+                    STAR@281..282 "*"
+                    R_PAREN@282..283 ")"
+                  R_PAREN@283..284 ")"
+                COMMA@284..285 ","
+                WHITESPACE@285..298 "\n            "
+                IDENT@298..313 "parse_use_trees"
+                BANG@313..314 "!"
+                TOKEN_TREE@314..328
+                  L_PAREN@314..315 "("
+                  DOLLAR@315..316 "$"
+                  TOKEN_TREE@316..326
+                    L_PAREN@316..317 "("
+                    DOLLAR@317..318 "$"
+                    IDENT@318..324 "output"
+                    COMMA@324..325 ","
+                    R_PAREN@325..326 ")"
+                  STAR@326..327 "*"
+                  R_PAREN@327..328 ")"
+                COMMA@328..329 ","
+                WHITESPACE@329..338 "\n        "
+                R_PAREN@338..339 ")"
+              SEMICOLON@339..340 ";"
+              WHITESPACE@340..345 "\n    "
+              R_CURLY@345..346 "}"
+        WHITESPACE@346..347 "\n"
+        R_CURLY@347..348 "}"
+  WHITESPACE@348..349 "\n"
diff --git a/crates/ra_syntax/test_data/parser/ok/0063_trait_fn_patterns.rast b/crates/ra_syntax/test_data/parser/ok/0063_trait_fn_patterns.rast
index d0623ba90..1cd77aa14 100644
--- a/crates/ra_syntax/test_data/parser/ok/0063_trait_fn_patterns.rast
+++ b/crates/ra_syntax/test_data/parser/ok/0063_trait_fn_patterns.rast
@@ -1,198 +1,198 @@
-SOURCE_FILE@[0; 170)
-  TRAIT_DEF@[0; 169)
-    TRAIT_KW@[0; 5) "trait"
-    WHITESPACE@[5; 6) " "
-    NAME@[6; 7)
-      IDENT@[6; 7) "T"
-    WHITESPACE@[7; 8) " "
-    ITEM_LIST@[8; 169)
-      L_CURLY@[8; 9) "{"
-      WHITESPACE@[9; 14) "\n    "
-      FN_DEF@[14; 46)
-        FN_KW@[14; 16) "fn"
-        WHITESPACE@[16; 17) " "
-        NAME@[17; 19)
-          IDENT@[17; 19) "f1"
-        PARAM_LIST@[19; 43)
-          L_PAREN@[19; 20) "("
-          PARAM@[20; 42)
-            TUPLE_PAT@[20; 26)
-              L_PAREN@[20; 21) "("
-              BIND_PAT@[21; 22)
-                NAME@[21; 22)
-                  IDENT@[21; 22) "a"
-              COMMA@[22; 23) ","
-              WHITESPACE@[23; 24) " "
-              BIND_PAT@[24; 25)
-                NAME@[24; 25)
-                  IDENT@[24; 25) "b"
-              R_PAREN@[25; 26) ")"
-            COLON@[26; 27) ":"
-            WHITESPACE@[27; 28) " "
-            TUPLE_TYPE@[28; 42)
-              L_PAREN@[28; 29) "("
-              PATH_TYPE@[29; 34)
-                PATH@[29; 34)
-                  PATH_SEGMENT@[29; 34)
-                    NAME_REF@[29; 34)
-                      IDENT@[29; 34) "usize"
-              COMMA@[34; 35) ","
-              WHITESPACE@[35; 36) " "
-              PATH_TYPE@[36; 41)
-                PATH@[36; 41)
-                  PATH_SEGMENT@[36; 41)
-                    NAME_REF@[36; 41)
-                      IDENT@[36; 41) "usize"
-              R_PAREN@[41; 42) ")"
-          R_PAREN@[42; 43) ")"
-        WHITESPACE@[43; 44) " "
-        BLOCK_EXPR@[44; 46)
-          BLOCK@[44; 46)
-            L_CURLY@[44; 45) "{"
-            R_CURLY@[45; 46) "}"
-      WHITESPACE@[46; 51) "\n    "
-      FN_DEF@[51; 74)
-        FN_KW@[51; 53) "fn"
-        WHITESPACE@[53; 54) " "
-        NAME@[54; 56)
-          IDENT@[54; 56) "f2"
-        PARAM_LIST@[56; 71)
-          L_PAREN@[56; 57) "("
-          PARAM@[57; 70)
-            RECORD_PAT@[57; 67)
-              PATH@[57; 58)
-                PATH_SEGMENT@[57; 58)
-                  NAME_REF@[57; 58)
-                    IDENT@[57; 58) "S"
-              WHITESPACE@[58; 59) " "
-              RECORD_FIELD_PAT_LIST@[59; 67)
-                L_CURLY@[59; 60) "{"
-                WHITESPACE@[60; 61) " "
-                RECORD_FIELD_PAT@[61; 62)
-                  BIND_PAT@[61; 62)
-                    NAME@[61; 62)
-                      IDENT@[61; 62) "a"
-                COMMA@[62; 63) ","
-                WHITESPACE@[63; 64) " "
-                RECORD_FIELD_PAT@[64; 65)
-                  BIND_PAT@[64; 65)
-                    NAME@[64; 65)
-                      IDENT@[64; 65) "b"
-                WHITESPACE@[65; 66) " "
-                R_CURLY@[66; 67) "}"
-            COLON@[67; 68) ":"
-            WHITESPACE@[68; 69) " "
-            PATH_TYPE@[69; 70)
-              PATH@[69; 70)
-                PATH_SEGMENT@[69; 70)
-                  NAME_REF@[69; 70)
-                    IDENT@[69; 70) "S"
-          R_PAREN@[70; 71) ")"
-        WHITESPACE@[71; 72) " "
-        BLOCK_EXPR@[72; 74)
-          BLOCK@[72; 74)
-            L_CURLY@[72; 73) "{"
-            R_CURLY@[73; 74) "}"
-      WHITESPACE@[74; 79) "\n    "
-      FN_DEF@[79; 108)
-        FN_KW@[79; 81) "fn"
-        WHITESPACE@[81; 82) " "
-        NAME@[82; 84)
-          IDENT@[82; 84) "f3"
-        PARAM_LIST@[84; 105)
-          L_PAREN@[84; 85) "("
-          PARAM@[85; 104)
-            TUPLE_STRUCT_PAT@[85; 95)
-              PATH@[85; 92)
-                PATH_SEGMENT@[85; 92)
-                  NAME_REF@[85; 92)
-                    IDENT@[85; 92) "NewType"
-              L_PAREN@[92; 93) "("
-              BIND_PAT@[93; 94)
-                NAME@[93; 94)
-                  IDENT@[93; 94) "a"
-              R_PAREN@[94; 95) ")"
-            COLON@[95; 96) ":"
-            WHITESPACE@[96; 97) " "
-            PATH_TYPE@[97; 104)
-              PATH@[97; 104)
-                PATH_SEGMENT@[97; 104)
-                  NAME_REF@[97; 104)
-                    IDENT@[97; 104) "NewType"
-          R_PAREN@[104; 105) ")"
-        WHITESPACE@[105; 106) " "
-        BLOCK_EXPR@[106; 108)
-          BLOCK@[106; 108)
-            L_CURLY@[106; 107) "{"
-            R_CURLY@[107; 108) "}"
-      WHITESPACE@[108; 113) "\n    "
-      FN_DEF@[113; 135)
-        FN_KW@[113; 115) "fn"
-        WHITESPACE@[115; 116) " "
-        NAME@[116; 118)
-          IDENT@[116; 118) "f4"
-        PARAM_LIST@[118; 132)
-          L_PAREN@[118; 119) "("
-          PARAM@[119; 131)
-            REF_PAT@[119; 122)
-              AMP@[119; 120) "&"
-              REF_PAT@[120; 122)
-                AMP@[120; 121) "&"
-                BIND_PAT@[121; 122)
-                  NAME@[121; 122)
-                    IDENT@[121; 122) "a"
-            COLON@[122; 123) ":"
-            WHITESPACE@[123; 124) " "
-            REFERENCE_TYPE@[124; 131)
-              AMP@[124; 125) "&"
-              REFERENCE_TYPE@[125; 131)
-                AMP@[125; 126) "&"
-                PATH_TYPE@[126; 131)
-                  PATH@[126; 131)
-                    PATH_SEGMENT@[126; 131)
-                      NAME_REF@[126; 131)
-                        IDENT@[126; 131) "usize"
-          R_PAREN@[131; 132) ")"
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diff --git a/crates/ra_syntax/test_data/parser/ok/0063_variadic_fun.rast b/crates/ra_syntax/test_data/parser/ok/0063_variadic_fun.rast
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+        FN_KW@13..15 "fn"
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+                      IDENT@28..33 "usize"
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+          BLOCK@43..45
+            L_CURLY@43..44 "{"
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+      WHITESPACE@45..50 "\n    "
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+        FN_KW@50..52 "fn"
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+                  BIND_PAT@63..64
+                    NAME@63..64
+                      IDENT@63..64 "b"
+                WHITESPACE@64..65 " "
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+                  NAME_REF@68..69
+                    IDENT@68..69 "S"
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+            L_CURLY@71..72 "{"
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+      WHITESPACE@73..78 "\n    "
+      FN_DEF@78..107
+        FN_KW@78..80 "fn"
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+          IDENT@81..83 "f3"
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+                    IDENT@96..103 "NewType"
+          R_PAREN@103..104 ")"
+        WHITESPACE@104..105 " "
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+          BLOCK@105..107
+            L_CURLY@105..106 "{"
+            R_CURLY@106..107 "}"
+      WHITESPACE@107..112 "\n    "
+      FN_DEF@112..134
+        FN_KW@112..114 "fn"
+        WHITESPACE@114..115 " "
+        NAME@115..117
+          IDENT@115..117 "f4"
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+                      NAME_REF@125..130
+                        IDENT@125..130 "usize"
+          R_PAREN@130..131 ")"
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+        BLOCK_EXPR@132..134
+          BLOCK@132..134
+            L_CURLY@132..133 "{"
+            R_CURLY@133..134 "}"
+      WHITESPACE@134..135 "\n"
+      R_CURLY@135..136 "}"
+  WHITESPACE@136..137 "\n"
diff --git a/crates/ra_syntax/test_data/parser/ok/0065_comment_newline.rast b/crates/ra_syntax/test_data/parser/ok/0065_comment_newline.rast
index 91d0c3736..3294f4901 100644
--- a/crates/ra_syntax/test_data/parser/ok/0065_comment_newline.rast
+++ b/crates/ra_syntax/test_data/parser/ok/0065_comment_newline.rast
@@ -1,17 +1,17 @@
-SOURCE_FILE@[0; 26)
-  FN_DEF@[0; 25)
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-    WHITESPACE@[11; 13) "\n\n"
-    FN_KW@[13; 15) "fn"
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-      IDENT@[16; 20) "test"
-    PARAM_LIST@[20; 22)
-      L_PAREN@[20; 21) "("
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-    WHITESPACE@[22; 23) " "
-    BLOCK_EXPR@[23; 25)
-      BLOCK@[23; 25)
-        L_CURLY@[23; 24) "{"
-        R_CURLY@[24; 25) "}"
-  WHITESPACE@[25; 26) "\n"
+SOURCE_FILE@0..26
+  FN_DEF@0..25
+    COMMENT@0..11 "/// Example"
+    WHITESPACE@11..13 "\n\n"
+    FN_KW@13..15 "fn"
+    WHITESPACE@15..16 " "
+    NAME@16..20
+      IDENT@16..20 "test"
+    PARAM_LIST@20..22
+      L_PAREN@20..21 "("
+      R_PAREN@21..22 ")"
+    WHITESPACE@22..23 " "
+    BLOCK_EXPR@23..25
+      BLOCK@23..25
+        L_CURLY@23..24 "{"
+        R_CURLY@24..25 "}"
+  WHITESPACE@25..26 "\n"
diff --git a/crates/ra_syntax/test_data/parser/ok/0065_plus_after_fn_trait_bound.rast b/crates/ra_syntax/test_data/parser/ok/0065_plus_after_fn_trait_bound.rast
index 1b0acf47c..633b14000 100644
--- a/crates/ra_syntax/test_data/parser/ok/0065_plus_after_fn_trait_bound.rast
+++ b/crates/ra_syntax/test_data/parser/ok/0065_plus_after_fn_trait_bound.rast
@@ -1,61 +1,61 @@
-SOURCE_FILE@[0; 40)
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-    TYPE_PARAM_LIST@[4; 7)
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-        NAME@[5; 6)
-          IDENT@[5; 6) "T"
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-              NAME_REF@[16; 17)
-                IDENT@[16; 17) "T"
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-        TYPE_BOUND_LIST@[19; 36)
-          TYPE_BOUND@[19; 29)
-            PATH_TYPE@[19; 29)
-              PATH@[19; 29)
-                PATH_SEGMENT@[19; 29)
-                  NAME_REF@[19; 21)
-                    IDENT@[19; 21) "Fn"
-                  PARAM_LIST@[21; 23)
-                    L_PAREN@[21; 22) "("
-                    R_PAREN@[22; 23) ")"
-                  WHITESPACE@[23; 24) " "
-                  RET_TYPE@[24; 29)
-                    THIN_ARROW@[24; 26) "->"
-                    WHITESPACE@[26; 27) " "
-                    PATH_TYPE@[27; 29)
-                      PATH@[27; 29)
-                        PATH_SEGMENT@[27; 29)
-                          NAME_REF@[27; 29)
-                            IDENT@[27; 29) "u8"
-          WHITESPACE@[29; 30) " "
-          PLUS@[30; 31) "+"
-          WHITESPACE@[31; 32) " "
-          TYPE_BOUND@[32; 36)
-            PATH_TYPE@[32; 36)
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-                  NAME_REF@[32; 36)
-                    IDENT@[32; 36) "Send"
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-      BLOCK@[37; 39)
-        L_CURLY@[37; 38) "{"
-        R_CURLY@[38; 39) "}"
-  WHITESPACE@[39; 40) "\n"
+SOURCE_FILE@0..40
+  FN_DEF@0..39
+    FN_KW@0..2 "fn"
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+      IDENT@3..4 "f"
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+      WHERE_KW@10..15 "where"
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+              NAME_REF@16..17
+                IDENT@16..17 "T"
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+          TYPE_BOUND@19..29
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+                  NAME_REF@19..21
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+                            IDENT@27..29 "u8"
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+                  NAME_REF@32..36
+                    IDENT@32..36 "Send"
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+    BLOCK_EXPR@37..39
+      BLOCK@37..39
+        L_CURLY@37..38 "{"
+        R_CURLY@38..39 "}"
+  WHITESPACE@39..40 "\n"