Merge #5729

5729: Rename ra_syntax -> syntax
 r=matklad a=matklad

bors r+
🤖

Co-authored-by: Aleksey Kladov <[email protected]>

590 files changed, 25565 insertions, 0 deletions

diff --git a/crates/syntax/test_data/parser/err/0000_struct_field_missing_comma.rast b/crates/syntax/test_data/parser/err/0000_struct_field_missing_comma.rast
new file mode 100644
index 000000000..bbbf496c8
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0000_struct_field_missing_comma.rast
@@ -0,0 +1,34 @@
+[email protected]
+  [email protected]
+    [email protected] "struct"
+    [email protected] " "
+    [email protected]
+      [email protected] "S"
+    [email protected] " "
+    [email protected]
+      [email protected] "{"
+      [email protected] "\n    "
+      [email protected]
+        [email protected]
+          [email protected] "a"
+        [email protected] ":"
+        [email protected] " "
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected] "u32"
+      [email protected] "\n    "
+      [email protected]
+        [email protected]
+          [email protected] "b"
+        [email protected] ":"
+        [email protected] " "
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected] "u32"
+      [email protected] "\n"
+      [email protected] "}"
+error 21..21: expected COMMA
diff --git a/crates/syntax/test_data/parser/err/0000_struct_field_missing_comma.rs b/crates/syntax/test_data/parser/err/0000_struct_field_missing_comma.rs
new file mode 100644
index 000000000..fe5030d89
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0000_struct_field_missing_comma.rs
@@ -0,0 +1,4 @@
+struct S {
+    a: u32
+    b: u32
+}
\ No newline at end of file
diff --git a/crates/syntax/test_data/parser/err/0001_item_recovery_in_file.rast b/crates/syntax/test_data/parser/err/0001_item_recovery_in_file.rast
new file mode 100644
index 000000000..6dc73bfdb
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0001_item_recovery_in_file.rast
@@ -0,0 +1,18 @@
+[email protected]
+  [email protected]
+    [email protected] "if"
+  [email protected] " "
+  [email protected]
+    [email protected] "match"
+  [email protected] "\n\n"
+  [email protected]
+    [email protected] "struct"
+    [email protected] " "
+    [email protected]
+      [email protected] "S"
+    [email protected] " "
+    [email protected]
+      [email protected] "{"
+      [email protected] "}"
+error 0..0: expected an item
+error 3..3: expected an item
diff --git a/crates/syntax/test_data/parser/err/0001_item_recovery_in_file.rs b/crates/syntax/test_data/parser/err/0001_item_recovery_in_file.rs
new file mode 100644
index 000000000..98f23de1f
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0001_item_recovery_in_file.rs
@@ -0,0 +1,3 @@
+if match
+
+struct S {}
\ No newline at end of file
diff --git a/crates/syntax/test_data/parser/err/0002_duplicate_shebang.rast b/crates/syntax/test_data/parser/err/0002_duplicate_shebang.rast
new file mode 100644
index 000000000..4cfd1bce4
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0002_duplicate_shebang.rast
@@ -0,0 +1,39 @@
+[email protected]
+  [email protected] "#!/use/bin/env rusti"
+  [email protected] "\n"
+  [email protected]
+    [email protected] "#"
+    [email protected] "!"
+  [email protected]
+    [email protected] "/"
+  [email protected]
+    [email protected] "use"
+    [email protected]
+      [email protected] "/"
+  [email protected]
+    [email protected]
+      [email protected]
+        [email protected]
+          [email protected] "bin"
+  [email protected]
+    [email protected] "/"
+  [email protected]
+    [email protected]
+      [email protected]
+        [email protected]
+          [email protected] "env"
+    [email protected] " "
+    [email protected]
+      [email protected] "rusti"
+  [email protected] "\n"
+error 23..23: expected `[`
+error 23..23: expected an item
+error 27..27: expected one of `*`, `::`, `{`, `self`, `super` or an identifier
+error 28..28: expected SEMICOLON
+error 31..31: expected BANG
+error 31..31: expected `{`, `[`, `(`
+error 31..31: expected SEMICOLON
+error 31..31: expected an item
+error 35..35: expected BANG
+error 41..41: expected `{`, `[`, `(`
+error 41..41: expected SEMICOLON
diff --git a/crates/syntax/test_data/parser/err/0002_duplicate_shebang.rs b/crates/syntax/test_data/parser/err/0002_duplicate_shebang.rs
new file mode 100644
index 000000000..48a3a3980
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0002_duplicate_shebang.rs
@@ -0,0 +1,2 @@
+#!/use/bin/env rusti
+#!/use/bin/env rusti
diff --git a/crates/syntax/test_data/parser/err/0003_C++_semicolon.rast b/crates/syntax/test_data/parser/err/0003_C++_semicolon.rast
new file mode 100644
index 000000000..7763fad84
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0003_C++_semicolon.rast
@@ -0,0 +1,39 @@
+[email protected]
+  [email protected]
+    [email protected] "struct"
+    [email protected] " "
+    [email protected]
+      [email protected] "S"
+    [email protected] " "
+    [email protected]
+      [email protected] "{"
+      [email protected] "\n    "
+      [email protected]
+        [email protected]
+          [email protected] "a"
+        [email protected] ":"
+        [email protected] " "
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected] "i32"
+      [email protected] ","
+      [email protected] "\n    "
+      [email protected]
+        [email protected]
+          [email protected] "b"
+        [email protected] ":"
+        [email protected] " "
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected] "String"
+      [email protected] ","
+      [email protected] "\n"
+      [email protected] "}"
+  [email protected]
+    [email protected] ";"
+error 39..39: expected item, found `;`
+consider removing this semicolon
diff --git a/crates/syntax/test_data/parser/err/0003_C++_semicolon.rs b/crates/syntax/test_data/parser/err/0003_C++_semicolon.rs
new file mode 100644
index 000000000..009312270
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0003_C++_semicolon.rs
@@ -0,0 +1,4 @@
+struct S {
+    a: i32,
+    b: String,
+};
\ No newline at end of file
diff --git a/crates/syntax/test_data/parser/err/0004_use_path_bad_segment.rast b/crates/syntax/test_data/parser/err/0004_use_path_bad_segment.rast
new file mode 100644
index 000000000..9a0f4665e
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0004_use_path_bad_segment.rast
@@ -0,0 +1,15 @@
+[email protected]
+  [email protected]
+    [email protected] "use"
+    [email protected] " "
+    [email protected]
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected] "foo"
+        [email protected] "::"
+        [email protected]
+          [email protected] "92"
+    [email protected] ";"
+error 9..9: expected identifier
diff --git a/crates/syntax/test_data/parser/err/0004_use_path_bad_segment.rs b/crates/syntax/test_data/parser/err/0004_use_path_bad_segment.rs
new file mode 100644
index 000000000..060e65d06
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0004_use_path_bad_segment.rs
@@ -0,0 +1 @@
+use foo::92;
\ No newline at end of file
diff --git a/crates/syntax/test_data/parser/err/0005_attribute_recover.rast b/crates/syntax/test_data/parser/err/0005_attribute_recover.rast
new file mode 100644
index 000000000..4845a6563
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0005_attribute_recover.rast
@@ -0,0 +1,59 @@
+[email protected]
+  [email protected]
+    [email protected]
+      [email protected] "#"
+      [email protected] "["
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected] "foo"
+      [email protected]
+        [email protected] "("
+        [email protected] "foo"
+        [email protected] ","
+        [email protected] " "
+        [email protected] "+"
+        [email protected] ","
+        [email protected] " "
+        [email protected] "92"
+        [email protected] ")"
+      [email protected] "]"
+    [email protected] "\n"
+    [email protected] "fn"
+    [email protected] " "
+    [email protected]
+      [email protected] "foo"
+    [email protected]
+      [email protected] "("
+      [email protected] ")"
+    [email protected] " "
+    [email protected]
+      [email protected] "{"
+      [email protected] "\n"
+      [email protected] "}"
+  [email protected] "\n\n\n"
+  [email protected]
+    [email protected] "#"
+    [email protected] "["
+    [email protected]
+      [email protected]
+        [email protected]
+          [email protected] "foo"
+    [email protected]
+      [email protected] "("
+      [email protected] "\n"
+      [email protected] "fn"
+      [email protected] " "
+      [email protected] "foo"
+      [email protected]
+        [email protected] "("
+        [email protected] ")"
+      [email protected] " "
+      [email protected]
+        [email protected] "{"
+        [email protected] "\n"
+        [email protected] "}"
+  [email protected] "\n"
+error 53..53: expected R_PAREN
+error 53..53: expected `]`
+error 53..53: expected an item
diff --git a/crates/syntax/test_data/parser/err/0005_attribute_recover.rs b/crates/syntax/test_data/parser/err/0005_attribute_recover.rs
new file mode 100644
index 000000000..de7f81628
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0005_attribute_recover.rs
@@ -0,0 +1,8 @@
+#[foo(foo, +, 92)]
+fn foo() {
+}
+
+
+#[foo(
+fn foo() {
+}
diff --git a/crates/syntax/test_data/parser/err/0006_named_field_recovery.rast b/crates/syntax/test_data/parser/err/0006_named_field_recovery.rast
new file mode 100644
index 000000000..5f85c3943
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0006_named_field_recovery.rast
@@ -0,0 +1,74 @@
+[email protected]
+  [email protected]
+    [email protected] "struct"
+    [email protected] " "
+    [email protected]
+      [email protected] "S"
+    [email protected] " "
+    [email protected]
+      [email protected] "{"
+      [email protected] "\n    "
+      [email protected]
+        [email protected]
+          [email protected] "f"
+        [email protected] ":"
+        [email protected] " "
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected] "u32"
+      [email protected] ","
+      [email protected] "\n    "
+      [email protected]
+        [email protected] "pub"
+      [email protected] " "
+      [email protected]
+        [email protected] "92"
+      [email protected] "\n    "
+      [email protected]
+        [email protected] "+"
+      [email protected] " "
+      [email protected]
+        [email protected] "-"
+      [email protected] " "
+      [email protected]
+        [email protected] "*"
+      [email protected] "\n    "
+      [email protected]
+        [email protected]
+          [email protected] "pub"
+        [email protected] " "
+        [email protected]
+          [email protected] "x"
+        [email protected] ":"
+        [email protected] " "
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected] "u32"
+      [email protected] ","
+      [email protected] "\n    "
+      [email protected]
+        [email protected]
+          [email protected] "z"
+        [email protected] ":"
+        [email protected] " "
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected] "f64"
+      [email protected] ","
+      [email protected] "\n"
+      [email protected] "}"
+  [email protected] "\n"
+error 31..31: expected field declaration
+error 33..33: expected COMMA
+error 38..38: expected field declaration
+error 39..39: expected COMMA
+error 40..40: expected field declaration
+error 41..41: expected COMMA
+error 42..42: expected field declaration
+error 43..43: expected COMMA
diff --git a/crates/syntax/test_data/parser/err/0006_named_field_recovery.rs b/crates/syntax/test_data/parser/err/0006_named_field_recovery.rs
new file mode 100644
index 000000000..8069c111b
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0006_named_field_recovery.rs
@@ -0,0 +1,7 @@
+struct S {
+    f: u32,
+    pub 92
+    + - *
+    pub x: u32,
+    z: f64,
+}
diff --git a/crates/syntax/test_data/parser/err/0007_stray_curly_in_file.rast b/crates/syntax/test_data/parser/err/0007_stray_curly_in_file.rast
new file mode 100644
index 000000000..560bfd751
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0007_stray_curly_in_file.rast
@@ -0,0 +1,32 @@
+[email protected]
+  [email protected]
+    [email protected] "}"
+  [email protected] "\n\n"
+  [email protected]
+    [email protected] "struct"
+    [email protected] " "
+    [email protected]
+      [email protected] "S"
+    [email protected] ";"
+  [email protected] "\n\n"
+  [email protected]
+    [email protected] "}"
+  [email protected] "\n\n"
+  [email protected]
+    [email protected] "fn"
+    [email protected] " "
+    [email protected]
+      [email protected] "foo"
+    [email protected]
+      [email protected] "("
+      [email protected] ")"
+    [email protected]
+      [email protected] "{"
+      [email protected] "}"
+  [email protected] "\n\n"
+  [email protected]
+    [email protected] "}"
+  [email protected] "\n"
+error 0..0: unmatched `}`
+error 14..14: unmatched `}`
+error 29..29: unmatched `}`
diff --git a/crates/syntax/test_data/parser/err/0007_stray_curly_in_file.rs b/crates/syntax/test_data/parser/err/0007_stray_curly_in_file.rs
new file mode 100644
index 000000000..dc869fb78
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0007_stray_curly_in_file.rs
@@ -0,0 +1,9 @@
+}
+
+struct S;
+
+}
+
+fn foo(){}
+
+}
diff --git a/crates/syntax/test_data/parser/err/0008_item_block_recovery.rast b/crates/syntax/test_data/parser/err/0008_item_block_recovery.rast
new file mode 100644
index 000000000..1e9637c26
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0008_item_block_recovery.rast
@@ -0,0 +1,77 @@
+[email protected]
+  [email protected]
+    [email protected] "fn"
+    [email protected] " "
+    [email protected]
+      [email protected] "foo"
+    [email protected]
+      [email protected] "("
+      [email protected] ")"
+    [email protected] " "
+    [email protected]
+      [email protected] "{"
+      [email protected] "\n"
+      [email protected] "}"
+  [email protected] "\n\n"
+  [email protected]
+    [email protected]
+      [email protected]
+        [email protected]
+          [email protected] "bar"
+    [email protected]
+      [email protected] "("
+      [email protected] ")"
+  [email protected] " "
+  [email protected]
+    [email protected] "{"
+    [email protected] "\n    "
+    [email protected]
+      [email protected] "if"
+      [email protected] " "
+      [email protected]
+        [email protected]
+          [email protected] "true"
+      [email protected] " "
+      [email protected]
+        [email protected] "{"
+        [email protected] "\n        "
+        [email protected]
+          [email protected] "1"
+        [email protected] "\n    "
+        [email protected] "}"
+      [email protected] " "
+      [email protected] "else"
+      [email protected] " "
+      [email protected]
+        [email protected] "{"
+        [email protected] "\n        "
+        [email protected]
+          [email protected]
+            [email protected] "2"
+          [email protected] " "
+          [email protected] "+"
+          [email protected] " "
+          [email protected]
+            [email protected] "3"
+        [email protected] "\n    "
+        [email protected] "}"
+    [email protected] "\n"
+    [email protected] "}"
+  [email protected] "\n\n"
+  [email protected]
+    [email protected] "fn"
+    [email protected] " "
+    [email protected]
+      [email protected] "baz"
+    [email protected]
+      [email protected] "("
+      [email protected] ")"
+    [email protected] " "
+    [email protected]
+      [email protected] "{"
+      [email protected] "\n"
+      [email protected] "}"
+  [email protected] "\n"
+error 17..17: expected BANG
+error 19..19: expected SEMICOLON
+error 20..20: expected an item
diff --git a/crates/syntax/test_data/parser/err/0008_item_block_recovery.rs b/crates/syntax/test_data/parser/err/0008_item_block_recovery.rs
new file mode 100644
index 000000000..9fcac19b5
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0008_item_block_recovery.rs
@@ -0,0 +1,13 @@
+fn foo() {
+}
+
+bar() {
+    if true {
+        1
+    } else {
+        2 + 3
+    }
+}
+
+fn baz() {
+}
diff --git a/crates/syntax/test_data/parser/err/0009_broken_struct_type_parameter.rast b/crates/syntax/test_data/parser/err/0009_broken_struct_type_parameter.rast
new file mode 100644
index 000000000..dacf71aa1
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0009_broken_struct_type_parameter.rast
@@ -0,0 +1,58 @@
+[email protected]
+  [email protected]
+    [email protected] "struct"
+    [email protected] " "
+    [email protected]
+      [email protected] "S"
+    [email protected]
+      [email protected] "<"
+      [email protected]
+        [email protected] "90"
+  [email protected] " "
+  [email protected]
+    [email protected] "+"
+  [email protected] " "
+  [email protected]
+    [email protected] "2"
+  [email protected]
+    [email protected] ">"
+  [email protected] " "
+  [email protected]
+    [email protected] "{"
+    [email protected] "\n    "
+    [email protected]
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected] "f"
+    [email protected]
+      [email protected]
+        [email protected] ":"
+    [email protected] " "
+    [email protected]
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected] "u32"
+    [email protected] "\n"
+    [email protected] "}"
+  [email protected] "\n\n"
+  [email protected]
+    [email protected] "struct"
+    [email protected] " "
+    [email protected]
+      [email protected] "T"
+    [email protected] ";"
+  [email protected] "\n"
+error 9..9: expected type parameter
+error 11..11: expected COMMA
+error 11..11: expected R_ANGLE
+error 11..11: expected `;`, `{`, or `(`
+error 12..12: expected an item
+error 14..14: expected an item
+error 15..15: expected an item
+error 17..17: expected an item
+error 24..24: expected SEMICOLON
+error 24..24: expected expression
+error 25..25: expected SEMICOLON
diff --git a/crates/syntax/test_data/parser/err/0009_broken_struct_type_parameter.rs b/crates/syntax/test_data/parser/err/0009_broken_struct_type_parameter.rs
new file mode 100644
index 000000000..0dd30d0bd
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0009_broken_struct_type_parameter.rs
@@ -0,0 +1,5 @@
+struct S<90 + 2> {
+    f: u32
+}
+
+struct T;
diff --git a/crates/syntax/test_data/parser/err/0010_unsafe_lambda_block.rast b/crates/syntax/test_data/parser/err/0010_unsafe_lambda_block.rast
new file mode 100644
index 000000000..e0f1d0c27
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0010_unsafe_lambda_block.rast
@@ -0,0 +1,44 @@
+[email protected]
+  [email protected]
+    [email protected] "fn"
+    [email protected] " "
+    [email protected]
+      [email protected] "main"
+    [email protected]
+      [email protected] "("
+      [email protected] ")"
+    [email protected] " "
+    [email protected]
+      [email protected] "{"
+      [email protected] "\n    "
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected] "|"
+            [email protected] "|"
+          [email protected] " "
+          [email protected]
+            [email protected] "->"
+            [email protected] " "
+            [email protected]
+              [email protected] "("
+              [email protected] ")"
+      [email protected] " "
+      [email protected]
+        [email protected]
+          [email protected] "unsafe"
+          [email protected] " "
+          [email protected]
+            [email protected] "{"
+            [email protected] " "
+            [email protected]
+              [email protected] "("
+              [email protected] ")"
+            [email protected] " "
+            [email protected] "}"
+        [email protected] ";"
+      [email protected] "\n"
+      [email protected] "}"
+  [email protected] "\n"
+error 24..24: expected a block
+error 24..24: expected SEMICOLON
diff --git a/crates/syntax/test_data/parser/err/0010_unsafe_lambda_block.rs b/crates/syntax/test_data/parser/err/0010_unsafe_lambda_block.rs
new file mode 100644
index 000000000..985775282
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0010_unsafe_lambda_block.rs
@@ -0,0 +1,3 @@
+fn main() {
+    || -> () unsafe { () };
+}
diff --git a/crates/syntax/test_data/parser/err/0011_extern_struct.rast b/crates/syntax/test_data/parser/err/0011_extern_struct.rast
new file mode 100644
index 000000000..b02d390af
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0011_extern_struct.rast
@@ -0,0 +1,13 @@
+[email protected]
+  [email protected]
+    [email protected]
+      [email protected] "extern"
+  [email protected] " "
+  [email protected]
+    [email protected] "struct"
+    [email protected] " "
+    [email protected]
+      [email protected] "Foo"
+    [email protected] ";"
+  [email protected] "\n"
+error 6..6: expected existential, fn, trait or impl
diff --git a/crates/syntax/test_data/parser/err/0011_extern_struct.rs b/crates/syntax/test_data/parser/err/0011_extern_struct.rs
new file mode 100644
index 000000000..c1bd0a2d1
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0011_extern_struct.rs
@@ -0,0 +1 @@
+extern struct Foo;
diff --git a/crates/syntax/test_data/parser/err/0012_broken_lambda.rast b/crates/syntax/test_data/parser/err/0012_broken_lambda.rast
new file mode 100644
index 000000000..f31c27633
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0012_broken_lambda.rast
@@ -0,0 +1,387 @@
+[email protected]
+  [email protected]
+    [email protected]
+      [email protected]
+      [email protected]
+      [email protected]
+      [email protected]
+    [email protected]
+    [email protected]
+    [email protected]
+    [email protected]
+      [email protected] "process"
+    [email protected]
+      [email protected]
+      [email protected]
+        [email protected] "'a"
+      [email protected]
+      [email protected]
+      [email protected]
+        [email protected]
+          [email protected] "S"
+        [email protected]
+        [email protected]
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected] "Sink"
+            [email protected]
+              [email protected]
+              [email protected]
+                [email protected] "'a"
+              [email protected]
+      [email protected]
+    [email protected]
+      [email protected]
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected] "builder"
+        [email protected]
+        [email protected]
+        [email protected]
+          [email protected]
+          [email protected]
+          [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected] "S"
+      [email protected]
+      [email protected]
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected] "tokens"
+        [email protected]
+        [email protected]
+        [email protected]
+          [email protected]
+          [email protected]
+            [email protected]
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected]
+                    [email protected] "Token"
+            [email protected]
+      [email protected]
+      [email protected]
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected] "events"
+        [email protected]
+        [email protected]
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected] "Vec"
+              [email protected]
+                [email protected]
+                [email protected]
+                  [email protected]
+                    [email protected]
+                      [email protected]
+                        [email protected]
+                          [email protected] "Event"
+                [email protected]
+      [email protected]
+    [email protected]
+    [email protected]
+      [email protected]
+      [email protected]
+      [email protected]
+        [email protected]
+        [email protected]
+        [email protected]
+          [email protected]
+          [email protected]
+          [email protected]
+            [email protected] "next_tok_idx"
+        [email protected]
+        [email protected]
+        [email protected]
+        [email protected]
+          [email protected] "0"
+        [email protected]
+      [email protected]
+      [email protected]
+        [email protected]
+        [email protected]
+        [email protected]
+          [email protected]
+            [email protected] "eat_ws"
+        [email protected]
+        [email protected]
+        [email protected]
+        [email protected]
+          [email protected]
+            [email protected]
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected] "idx"
+              [email protected]
+              [email protected]
+              [email protected]
+                [email protected]
+                [email protected]
+                [email protected]
+                [email protected]
+                  [email protected]
+                    [email protected]
+                      [email protected]
+                        [email protected] "usize"
+            [email protected]
+            [email protected]
+            [email protected]
+              [email protected]
+                [email protected]
+                [email protected]
+                [email protected]
+                err: `expected pattern`
+                [email protected]
+                  [email protected]
+                  err: `expected COMMA`
+            [email protected]
+            err: `expected pattern`
+            [email protected]
+              [email protected]
+                [email protected]
+                err: `expected COMMA`
+            [email protected]
+            err: `expected pattern`
+            [email protected]
+              [email protected]
+                [email protected]
+                err: `expected COMMA`
+            [email protected]
+            err: `expected pattern`
+            [email protected]
+              [email protected]
+                [email protected]
+                err: `expected COMMA`
+            [email protected]
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected]
+                    [email protected]
+                      [email protected] "Some"
+                [email protected]
+                [email protected]
+                  [email protected]
+                    [email protected] "token"
+                [email protected]
+                err: `expected COMMA`
+            [email protected]
+            err: `expected pattern`
+            [email protected]
+              [email protected]
+                [email protected]
+                err: `expected COMMA`
+            [email protected]
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected] "tokens"
+                  err: `expected COMMA`
+                  err: `expected pattern`
+            [email protected]
+              [email protected]
+                [email protected]
+                err: `expected COMMA`
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected]
+                    [email protected]
+                      [email protected] "get"
+                [email protected]
+                err: `expected pattern`
+                [email protected]
+                  [email protected]
+                  err: `expected COMMA`
+                [email protected]
+                  [email protected]
+                    [email protected] "idx"
+                [email protected]
+                err: `expected COMMA`
+            [email protected]
+            err: `expected pattern`
+            [email protected]
+              [email protected]
+                [email protected]
+                err: `expected COMMA`
+            [email protected]
+            err: `expected pattern`
+            [email protected]
+              [email protected]
+                [email protected]
+                err: `expected COMMA`
+            [email protected]
+            err: `expected pattern`
+            [email protected]
+              [email protected]
+                [email protected]
+                err: `expected COMMA`
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected] "token"
+                  err: `expected COMMA`
+                  err: `expected pattern`
+            [email protected]
+              [email protected]
+                [email protected]
+                err: `expected COMMA`
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected] "kind"
+                  err: `expected COMMA`
+                  err: `expected pattern`
+            [email protected]
+              [email protected]
+                [email protected]
+                err: `expected COMMA`
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected]
+                    [email protected]
+                      [email protected] "is_trivia"
+                [email protected]
+                [email protected]
+                err: `expected COMMA`
+            [email protected]
+            err: `expected pattern`
+            [email protected]
+              [email protected]
+                [email protected]
+                err: `expected COMMA`
+            [email protected]
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected] "break"
+                  err: `expected COMMA`
+                  err: `expected pattern`
+            [email protected]
+              [email protected]
+                [email protected]
+                err: `expected COMMA`
+            [email protected]
+            err: `expected pattern`
+            [email protected]
+              [email protected]
+                [email protected]
+                err: `expected COMMA`
+            [email protected]
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected] "builder"
+                  err: `expected COMMA`
+                  err: `expected pattern`
+            [email protected]
+              [email protected]
+                [email protected]
+                err: `expected COMMA`
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected]
+                    [email protected]
+                      [email protected] "leaf"
+                [email protected]
+                [email protected]
+                  [email protected]
+                    [email protected] "token"
+                    err: `expected COMMA`
+                    err: `expected pattern`
+                [email protected]
+                  [email protected]
+                  err: `expected COMMA`
+                [email protected]
+                  [email protected]
+                    [email protected] "kind"
+                [email protected]
+                [email protected]
+                [email protected]
+                  [email protected]
+                    [email protected] "token"
+                    err: `expected COMMA`
+                    err: `expected pattern`
+                [email protected]
+                  [email protected]
+                  err: `expected COMMA`
+                [email protected]
+                  [email protected]
+                    [email protected] "len"
+                [email protected]
+                err: `expected COMMA`
+                err: `expected pattern`
+            [email protected]
+              [email protected]
+                [email protected]
+                err: `expected COMMA`
+            [email protected]
+            err: `expected pattern`
+            [email protected]
+              [email protected]
+                [email protected]
+                err: `expected COMMA`
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected] "idx"
+                  err: `expected COMMA`
+            [email protected]
+            err: `expected pattern`
+            [email protected]
+              [email protected]
+                [email protected]
+                err: `expected COMMA`
+                err: `expected pattern`
+            [email protected]
+              [email protected]
+                [email protected]
+                err: `expected COMMA`
+            [email protected]
+            [email protected]
+              [email protected]
+                [email protected] "1"
+                err: `expected COMMA`
+            [email protected]
+            err: `expected pattern`
+            [email protected]
+              [email protected]
+                [email protected]
+                err: `expected COMMA`
+            [email protected]
+            err: `expected pattern`
+            [email protected]
+              [email protected]
+                [email protected]
+                err: `expected COMMA`
+                err: `expected pattern`
+            [email protected]
+              [email protected]
+                [email protected]
+                err: `expected COMMA`
+            [email protected]
+            err: `expected pattern`
+            [email protected]
+              [email protected]
+                [email protected]
+                err: `expected COMMA`
+                err: `expected PIPE`
+          [email protected]
+          err: `expected expression`
+          err: `expected SEMI`
+          err: `expected R_CURLY`
+          [email protected]
diff --git a/crates/syntax/test_data/parser/err/0013_invalid_type.rast b/crates/syntax/test_data/parser/err/0013_invalid_type.rast
new file mode 100644
index 000000000..f48ab6e71
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0013_invalid_type.rast
@@ -0,0 +1,89 @@
+[email protected]
+  [email protected]
+    [email protected]
+      [email protected] "pub"
+    [email protected] " "
+    [email protected] "struct"
+    [email protected] " "
+    [email protected]
+      [email protected] "Cache"
+    [email protected]
+      [email protected] "("
+      [email protected] "\n    "
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected] "RefCell"
+              [email protected]
+                [email protected] "<"
+                [email protected]
+                  [email protected]
+                    [email protected]
+                      [email protected]
+                        [email protected]
+                          [email protected] "HashMap"
+                        [email protected]
+                          [email protected] "<"
+                          [email protected] "\n        "
+                          [email protected]
+                            [email protected]
+                              [email protected]
+                                [email protected]
+                                  [email protected]
+                                    [email protected] "TypeId"
+                          [email protected] ","
+                          [email protected] "\n        "
+                          [email protected]
+                            [email protected]
+                              [email protected]
+                                [email protected]
+                                  [email protected]
+                                    [email protected] "Box"
+                                  [email protected]
+                                    [email protected] "<"
+                                    [email protected]
+                                      [email protected]
+                                        [email protected] "@"
+      [email protected] " "
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected] "Any"
+      [email protected]
+  [email protected]
+    [email protected] ">"
+  [email protected]
+    [email protected] ","
+  [email protected] "\n    "
+  [email protected]
+    [email protected] ">"
+  [email protected]
+    [email protected] ">"
+  [email protected] "\n"
+  [email protected]
+    [email protected] ")"
+  [email protected]
+    [email protected] ";"
+  [email protected] "\n\n"
+error 67..67: expected type
+error 68..68: expected COMMA
+error 68..68: expected R_ANGLE
+error 68..68: expected COMMA
+error 68..68: expected R_ANGLE
+error 68..68: expected COMMA
+error 68..68: expected R_ANGLE
+error 68..68: expected COMMA
+error 72..72: expected COMMA
+error 72..72: expected a type
+error 72..72: expected R_PAREN
+error 72..72: expected SEMICOLON
+error 72..72: expected an item
+error 73..73: expected an item
+error 79..79: expected an item
+error 80..80: expected an item
+error 82..82: expected an item
+error 83..83: expected an item
diff --git a/crates/syntax/test_data/parser/err/0013_invalid_type.rs b/crates/syntax/test_data/parser/err/0013_invalid_type.rs
new file mode 100644
index 000000000..20dde3bc3
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0013_invalid_type.rs
@@ -0,0 +1,7 @@
+pub struct Cache(
+    RefCell<HashMap<
+        TypeId,
+        Box<@ Any>,
+    >>
+);
+
diff --git a/crates/syntax/test_data/parser/err/0014_where_no_bounds.rast b/crates/syntax/test_data/parser/err/0014_where_no_bounds.rast
new file mode 100644
index 000000000..a1f39b22a
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0014_where_no_bounds.rast
@@ -0,0 +1,31 @@
+[email protected]
+  [email protected]
+    [email protected] "fn"
+    [email protected] " "
+    [email protected]
+      [email protected] "foo"
+    [email protected]
+      [email protected] "<"
+      [email protected]
+        [email protected]
+          [email protected] "T"
+      [email protected] ">"
+    [email protected]
+      [email protected] "("
+      [email protected] ")"
+    [email protected] " "
+    [email protected]
+      [email protected] "where"
+      [email protected] " "
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected] "T"
+    [email protected] " "
+    [email protected]
+      [email protected] "{"
+      [email protected] "}"
+  [email protected] "\n"
+error 19..19: expected colon
diff --git a/crates/syntax/test_data/parser/err/0014_where_no_bounds.rs b/crates/syntax/test_data/parser/err/0014_where_no_bounds.rs
new file mode 100644
index 000000000..75c1d2f98
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0014_where_no_bounds.rs
@@ -0,0 +1 @@
+fn foo<T>() where T {}
diff --git a/crates/syntax/test_data/parser/err/0015_curly_in_params.rast b/crates/syntax/test_data/parser/err/0015_curly_in_params.rast
new file mode 100644
index 000000000..a3c25b450
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0015_curly_in_params.rast
@@ -0,0 +1,24 @@
+[email protected]
+  [email protected]
+    [email protected] "fn"
+    [email protected] " "
+    [email protected]
+      [email protected] "foo"
+    [email protected]
+      [email protected] "("
+  [email protected]
+    [email protected] "}"
+  [email protected]
+    [email protected] ")"
+  [email protected] " "
+  [email protected]
+    [email protected] "{"
+    [email protected] "\n"
+    [email protected] "}"
+  [email protected] "\n"
+error 7..7: expected value parameter
+error 7..7: expected R_PAREN
+error 7..7: expected a block
+error 7..7: unmatched `}`
+error 8..8: expected an item
+error 10..10: expected an item
diff --git a/crates/syntax/test_data/parser/err/0015_curly_in_params.rs b/crates/syntax/test_data/parser/err/0015_curly_in_params.rs
new file mode 100644
index 000000000..156e70251
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0015_curly_in_params.rs
@@ -0,0 +1,2 @@
+fn foo(}) {
+}
diff --git a/crates/syntax/test_data/parser/err/0016_missing_semi.rast b/crates/syntax/test_data/parser/err/0016_missing_semi.rast
new file mode 100644
index 000000000..66157c3dc
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0016_missing_semi.rast
@@ -0,0 +1,43 @@
+[email protected]
+  [email protected]
+    [email protected] "fn"
+    [email protected] " "
+    [email protected]
+      [email protected] "foo"
+    [email protected]
+      [email protected] "("
+      [email protected] ")"
+    [email protected] " "
+    [email protected]
+      [email protected] "{"
+      [email protected] "\n    "
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected] "foo"
+          [email protected]
+            [email protected] "("
+            [email protected] "\n        "
+            [email protected]
+              [email protected] "1"
+            [email protected] ","
+            [email protected] " "
+            [email protected]
+              [email protected] "2"
+            [email protected] "\n    "
+            [email protected] ")"
+      [email protected] "\n    "
+      [email protected]
+        [email protected]
+          [email protected] "return"
+          [email protected] " "
+          [email protected]
+            [email protected] "92"
+        [email protected] ";"
+      [email protected] "\n"
+      [email protected] "}"
+  [email protected] "\n"
+error 38..38: expected SEMICOLON
diff --git a/crates/syntax/test_data/parser/err/0016_missing_semi.rs b/crates/syntax/test_data/parser/err/0016_missing_semi.rs
new file mode 100644
index 000000000..9ae857686
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0016_missing_semi.rs
@@ -0,0 +1,6 @@
+fn foo() {
+    foo(
+        1, 2
+    )
+    return 92;
+}
diff --git a/crates/syntax/test_data/parser/err/0017_incomplete_binexpr.rast b/crates/syntax/test_data/parser/err/0017_incomplete_binexpr.rast
new file mode 100644
index 000000000..fe094f61c
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0017_incomplete_binexpr.rast
@@ -0,0 +1,46 @@
+[email protected]
+  [email protected]
+    [email protected] "fn"
+    [email protected] " "
+    [email protected]
+      [email protected] "foo"
+    [email protected]
+      [email protected] "("
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected] "foo"
+        [email protected] ":"
+        [email protected] " "
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected] "i32"
+      [email protected] ")"
+    [email protected] " "
+    [email protected]
+      [email protected] "{"
+      [email protected] "\n    "
+      [email protected]
+        [email protected] "let"
+        [email protected] " "
+        [email protected]
+          [email protected]
+            [email protected] "bar"
+        [email protected] " "
+        [email protected] "="
+        [email protected] " "
+        [email protected]
+          [email protected] "92"
+        [email protected] ";"
+      [email protected] "\n    "
+      [email protected]
+        [email protected]
+          [email protected] "1"
+        [email protected] " "
+        [email protected] "+"
+      [email protected] "\n"
+      [email protected] "}"
+  [email protected] "\n"
+error 44..44: expected expression
diff --git a/crates/syntax/test_data/parser/err/0017_incomplete_binexpr.rs b/crates/syntax/test_data/parser/err/0017_incomplete_binexpr.rs
new file mode 100644
index 000000000..17bd49777
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0017_incomplete_binexpr.rs
@@ -0,0 +1,4 @@
+fn foo(foo: i32) {
+    let bar = 92;
+    1 +
+}
diff --git a/crates/syntax/test_data/parser/err/0018_incomplete_fn.rast b/crates/syntax/test_data/parser/err/0018_incomplete_fn.rast
new file mode 100644
index 000000000..72939fc98
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0018_incomplete_fn.rast
@@ -0,0 +1,131 @@
+[email protected]
+  [email protected]
+    [email protected] "impl"
+    [email protected] " "
+    [email protected]
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected] "FnScopes"
+    [email protected] " "
+    [email protected]
+      [email protected] "{"
+      [email protected] "\n    "
+      [email protected]
+        [email protected] "fn"
+        [email protected] " "
+        [email protected]
+          [email protected] "new_scope"
+        [email protected]
+          [email protected] "("
+          [email protected]
+            [email protected]
+              [email protected] "&"
+          [email protected] ")"
+        [email protected] " "
+        [email protected]
+          [email protected] "->"
+          [email protected] " "
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected] "ScopeId"
+        [email protected] " "
+        [email protected]
+          [email protected] "{"
+          [email protected] "\n        "
+          [email protected]
+            [email protected] "let"
+            [email protected] " "
+            [email protected]
+              [email protected]
+                [email protected] "res"
+            [email protected] " "
+            [email protected] "="
+            [email protected] " "
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected]
+                    [email protected]
+                      [email protected] "self"
+                [email protected] "."
+                [email protected]
+                  [email protected] "scopes"
+              [email protected] "."
+              [email protected]
+                [email protected] "len"
+              [email protected]
+                [email protected] "("
+                [email protected] ")"
+            [email protected] ";"
+          [email protected] "\n        "
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected]
+                    [email protected] "self"
+              [email protected] "."
+              [email protected]
+                [email protected] "scopes"
+            [email protected] "."
+            [email protected]
+              [email protected] "push"
+            [email protected]
+              [email protected] "("
+              [email protected]
+                [email protected]
+                  [email protected]
+                    [email protected]
+                      [email protected] "ScopeData"
+                [email protected] " "
+                [email protected]
+                  [email protected] "{"
+                  [email protected] " "
+                  [email protected]
+                    [email protected]
+                      [email protected] "parent"
+                    [email protected] ":"
+                    [email protected] " "
+                    [email protected]
+                      [email protected]
+                        [email protected]
+                          [email protected]
+                            [email protected] "None"
+                  [email protected] ","
+                  [email protected] " "
+                  [email protected]
+                    [email protected]
+                      [email protected] "entries"
+                    [email protected] ":"
+                    [email protected] " "
+                    [email protected]
+                      [email protected]
+                        [email protected]
+                          [email protected]
+                            [email protected] "vec"
+                      [email protected] "!"
+                      [email protected]
+                        [email protected] "["
+                        [email protected] "]"
+                  [email protected] " "
+                  [email protected] "}"
+              [email protected] ")"
+          [email protected] "\n    "
+          [email protected] "}"
+      [email protected] "\n\n    "
+      [email protected]
+        [email protected] "fn"
+        [email protected] " "
+        [email protected]
+          [email protected] "set_parent"
+      [email protected] "\n"
+      [email protected] "}"
+  [email protected] "\n"
+error 34..34: expected pattern
+error 34..34: expected COLON
+error 34..34: expected type
+error 180..180: expected function arguments
+error 180..180: expected a block
diff --git a/crates/syntax/test_data/parser/err/0018_incomplete_fn.rs b/crates/syntax/test_data/parser/err/0018_incomplete_fn.rs
new file mode 100644
index 000000000..fe604006c
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0018_incomplete_fn.rs
@@ -0,0 +1,8 @@
+impl FnScopes {
+    fn new_scope(&) -> ScopeId {
+        let res = self.scopes.len();
+        self.scopes.push(ScopeData { parent: None, entries: vec![] })
+    }
+
+    fn set_parent
+}
diff --git a/crates/syntax/test_data/parser/err/0019_let_recover.rast b/crates/syntax/test_data/parser/err/0019_let_recover.rast
new file mode 100644
index 000000000..72c05bd96
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0019_let_recover.rast
@@ -0,0 +1,103 @@
+[email protected]
+  [email protected]
+    [email protected] "fn"
+    [email protected] " "
+    [email protected]
+      [email protected] "foo"
+    [email protected]
+      [email protected] "("
+      [email protected] ")"
+    [email protected] " "
+    [email protected]
+      [email protected] "{"
+      [email protected] "\n    "
+      [email protected]
+        [email protected] "let"
+        [email protected] " "
+        [email protected]
+          [email protected]
+            [email protected] "foo"
+        [email protected] " "
+        [email protected] "="
+      [email protected] "\n    "
+      [email protected]
+        [email protected] "let"
+        [email protected] " "
+        [email protected]
+          [email protected]
+            [email protected] "bar"
+        [email protected] " "
+        [email protected] "="
+        [email protected] " "
+        [email protected]
+          [email protected] "1"
+        [email protected] ";"
+      [email protected] "\n    "
+      [email protected]
+        [email protected] "let"
+      [email protected] "\n    "
+      [email protected]
+        [email protected] "let"
+        [email protected] " "
+        [email protected]
+          [email protected]
+            [email protected] "baz"
+        [email protected] " "
+        [email protected] "="
+        [email protected] " "
+        [email protected]
+          [email protected] "92"
+        [email protected] ";"
+      [email protected] "\n    "
+      [email protected]
+        [email protected] "let"
+      [email protected] "\n    "
+      [email protected]
+        [email protected]
+          [email protected] "if"
+          [email protected] " "
+          [email protected]
+            [email protected]
+              [email protected] "true"
+          [email protected] " "
+          [email protected]
+            [email protected] "{"
+            [email protected] "}"
+      [email protected] "\n    "
+      [email protected]
+        [email protected] "let"
+      [email protected] "\n    "
+      [email protected]
+        [email protected]
+          [email protected] "while"
+          [email protected] " "
+          [email protected]
+            [email protected]
+              [email protected] "true"
+          [email protected] " "
+          [email protected]
+            [email protected] "{"
+            [email protected] "}"
+      [email protected] "\n    "
+      [email protected]
+        [email protected] "let"
+      [email protected] "\n    "
+      [email protected]
+        [email protected] "loop"
+        [email protected] " "
+        [email protected]
+          [email protected] "{"
+          [email protected] "}"
+      [email protected] "\n"
+      [email protected] "}"
+  [email protected] "\n"
+error 24..24: expected expression
+error 24..24: expected SEMICOLON
+error 49..49: expected pattern
+error 49..49: expected SEMICOLON
+error 75..75: expected pattern
+error 75..75: expected SEMICOLON
+error 98..98: expected pattern
+error 98..98: expected SEMICOLON
+error 124..124: expected pattern
+error 124..124: expected SEMICOLON
diff --git a/crates/syntax/test_data/parser/err/0019_let_recover.rs b/crates/syntax/test_data/parser/err/0019_let_recover.rs
new file mode 100644
index 000000000..48bf3d68b
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0019_let_recover.rs
@@ -0,0 +1,12 @@
+fn foo() {
+    let foo =
+    let bar = 1;
+    let
+    let baz = 92;
+    let
+    if true {}
+    let
+    while true {}
+    let
+    loop {}
+}
diff --git a/crates/syntax/test_data/parser/err/0020_fn_recover.rast b/crates/syntax/test_data/parser/err/0020_fn_recover.rast
new file mode 100644
index 000000000..6f6feba5a
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0020_fn_recover.rast
@@ -0,0 +1,20 @@
+[email protected]
+  [email protected]
+    [email protected] "fn"
+  [email protected] "\n\n"
+  [email protected]
+    [email protected] "fn"
+    [email protected] " "
+    [email protected]
+      [email protected] "foo"
+    [email protected]
+      [email protected] "("
+      [email protected] ")"
+    [email protected] " "
+    [email protected]
+      [email protected] "{"
+      [email protected] "}"
+  [email protected] "\n"
+error 2..2: expected a name
+error 2..2: expected function arguments
+error 2..2: expected a block
diff --git a/crates/syntax/test_data/parser/err/0020_fn_recover.rs b/crates/syntax/test_data/parser/err/0020_fn_recover.rs
new file mode 100644
index 000000000..3393b668b
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0020_fn_recover.rs
@@ -0,0 +1,3 @@
+fn
+
+fn foo() {}
diff --git a/crates/syntax/test_data/parser/err/0021_incomplete_param.rast b/crates/syntax/test_data/parser/err/0021_incomplete_param.rast
new file mode 100644
index 000000000..b32845537
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0021_incomplete_param.rast
@@ -0,0 +1,34 @@
+[email protected]
+  [email protected]
+    [email protected] "fn"
+    [email protected] " "
+    [email protected]
+      [email protected] "foo"
+    [email protected]
+      [email protected] "("
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected] "x"
+        [email protected] ":"
+        [email protected] " "
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected] "i32"
+      [email protected] ","
+      [email protected] " "
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected] "y"
+      [email protected] ")"
+    [email protected] " "
+    [email protected]
+      [email protected] "{"
+      [email protected] "\n"
+      [email protected] "}"
+  [email protected] "\n"
+error 16..16: expected COLON
+error 16..16: expected type
diff --git a/crates/syntax/test_data/parser/err/0021_incomplete_param.rs b/crates/syntax/test_data/parser/err/0021_incomplete_param.rs
new file mode 100644
index 000000000..7a6c264f6
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0021_incomplete_param.rs
@@ -0,0 +1,2 @@
+fn foo(x: i32, y) {
+}
diff --git a/crates/syntax/test_data/parser/err/0022_bad_exprs.rast b/crates/syntax/test_data/parser/err/0022_bad_exprs.rast
new file mode 100644
index 000000000..71fb19783
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0022_bad_exprs.rast
@@ -0,0 +1,180 @@
+[email protected]
+  [email protected]
+    [email protected] "fn"
+    [email protected] " "
+    [email protected]
+      [email protected] "a"
+    [email protected]
+      [email protected] "("
+      [email protected] ")"
+    [email protected] " "
+    [email protected]
+      [email protected] "{"
+      [email protected] " "
+      [email protected]
+        [email protected]
+          [email protected] "["
+          [email protected]
+            [email protected] "1"
+          [email protected] ","
+          [email protected] " "
+          [email protected]
+            [email protected] "2"
+          [email protected] ","
+          [email protected] " "
+          [email protected]
+            [email protected] "@"
+      [email protected]
+        [email protected]
+          [email protected] ","
+      [email protected] " "
+      [email protected]
+        [email protected] "struct"
+        [email protected]
+          [email protected] ","
+      [email protected] " "
+      [email protected]
+        [email protected] "let"
+        [email protected]
+          [email protected] "]"
+      [email protected] " "
+      [email protected] "}"
+  [email protected] "\n"
+  [email protected]
+    [email protected] "fn"
+    [email protected] " "
+    [email protected]
+      [email protected] "b"
+    [email protected]
+      [email protected] "("
+      [email protected] ")"
+    [email protected] " "
+    [email protected]
+      [email protected] "{"
+      [email protected] " "
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected] "foo"
+          [email protected]
+            [email protected] "("
+            [email protected]
+              [email protected] "1"
+            [email protected] ","
+            [email protected] " "
+            [email protected]
+              [email protected] "2"
+            [email protected] ","
+            [email protected] " "
+            [email protected]
+              [email protected] "@"
+      [email protected]
+        [email protected]
+          [email protected] ","
+      [email protected] " "
+      [email protected]
+        [email protected] "impl"
+      [email protected]
+        [email protected]
+          [email protected] ","
+      [email protected] " "
+      [email protected]
+        [email protected] "let"
+      [email protected]
+        [email protected] ")"
+      [email protected] " "
+      [email protected] "}"
+  [email protected] "\n"
+  [email protected]
+    [email protected] "fn"
+    [email protected] " "
+    [email protected]
+      [email protected] "c"
+    [email protected]
+      [email protected] "("
+      [email protected] ")"
+    [email protected] " "
+    [email protected]
+      [email protected] "{"
+      [email protected] " "
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected] "foo"
+          [email protected] "."
+          [email protected]
+            [email protected] "bar"
+          [email protected]
+            [email protected] "("
+            [email protected]
+              [email protected] "1"
+            [email protected] ","
+            [email protected] " "
+            [email protected]
+              [email protected] "2"
+            [email protected] ","
+            [email protected] " "
+            [email protected]
+              [email protected] "@"
+      [email protected]
+        [email protected]
+          [email protected] ","
+      [email protected] " "
+      [email protected]
+        [email protected]
+          [email protected] "]"
+      [email protected]
+        [email protected]
+          [email protected] ","
+      [email protected] " "
+      [email protected]
+        [email protected] "trait"
+        [email protected]
+          [email protected] ","
+      [email protected] " "
+      [email protected]
+        [email protected] "let"
+      [email protected]
+        [email protected] ")"
+      [email protected] " "
+      [email protected] "}"
+  [email protected] "\n"
+error 16..16: expected expression
+error 17..17: expected R_BRACK
+error 17..17: expected SEMICOLON
+error 17..17: expected expression
+error 18..18: expected SEMICOLON
+error 25..25: expected a name
+error 26..26: expected `;`, `{`, or `(`
+error 30..30: expected pattern
+error 31..31: expected SEMICOLON
+error 53..53: expected expression
+error 54..54: expected SEMICOLON
+error 54..54: expected expression
+error 55..55: expected SEMICOLON
+error 60..60: expected type
+error 60..60: expected `{`
+error 60..60: expected expression
+error 61..61: expected SEMICOLON
+error 65..65: expected pattern
+error 65..65: expected SEMICOLON
+error 65..65: expected expression
+error 92..92: expected expression
+error 93..93: expected SEMICOLON
+error 93..93: expected expression
+error 94..94: expected SEMICOLON
+error 95..95: expected expression
+error 96..96: expected SEMICOLON
+error 96..96: expected expression
+error 97..97: expected SEMICOLON
+error 103..103: expected a name
+error 104..104: expected `{`
+error 108..108: expected pattern
+error 108..108: expected SEMICOLON
+error 108..108: expected expression
diff --git a/crates/syntax/test_data/parser/err/0022_bad_exprs.rs b/crates/syntax/test_data/parser/err/0022_bad_exprs.rs
new file mode 100644
index 000000000..cd2d493a1
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0022_bad_exprs.rs
@@ -0,0 +1,3 @@
+fn a() { [1, 2, @, struct, let] }
+fn b() { foo(1, 2, @, impl, let) }
+fn c() { foo.bar(1, 2, @, ], trait, let) }
diff --git a/crates/syntax/test_data/parser/err/0023_mismatched_paren.rast b/crates/syntax/test_data/parser/err/0023_mismatched_paren.rast
new file mode 100644
index 000000000..5ffefd742
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0023_mismatched_paren.rast
@@ -0,0 +1,43 @@
+[email protected]
+  [email protected]
+    [email protected] "fn"
+    [email protected] " "
+    [email protected]
+      [email protected] "main"
+    [email protected]
+      [email protected] "("
+      [email protected] ")"
+    [email protected] " "
+    [email protected]
+      [email protected] "{"
+      [email protected] "\n    "
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected] "foo"
+        [email protected] "!"
+        [email protected] " "
+        [email protected]
+          [email protected] "("
+          [email protected] "\n        "
+          [email protected] "bar"
+          [email protected] ","
+          [email protected] " "
+          [email protected] "\"baz\""
+          [email protected] ","
+          [email protected] " "
+          [email protected] "1"
+          [email protected] ","
+          [email protected] " "
+          [email protected] "2.0"
+      [email protected] "\n    "
+      [email protected] "}"
+  [email protected] " "
+  [email protected] "//~ ERROR incorrect c ..."
+  [email protected] "\n"
+  [email protected]
+    [email protected] "}"
+  [email protected] "\n"
+error 49..49: unmatched `}`
+error 92..92: unmatched `}`
diff --git a/crates/syntax/test_data/parser/err/0023_mismatched_paren.rs b/crates/syntax/test_data/parser/err/0023_mismatched_paren.rs
new file mode 100644
index 000000000..0206d563e
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0023_mismatched_paren.rs
@@ -0,0 +1,5 @@
+fn main() {
+    foo! (
+        bar, "baz", 1, 2.0
+    } //~ ERROR incorrect close delimiter
+}
diff --git a/crates/syntax/test_data/parser/err/0024_many_type_parens.rast b/crates/syntax/test_data/parser/err/0024_many_type_parens.rast
new file mode 100644
index 000000000..e3be6b22e
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0024_many_type_parens.rast
@@ -0,0 +1,319 @@
+[email protected]
+  [email protected]
+    [email protected] "fn"
+    [email protected] " "
+    [email protected]
+      [email protected] "f"
+    [email protected]
+      [email protected] "<"
+      [email protected]
+        [email protected]
+          [email protected] "T"
+        [email protected] ":"
+        [email protected] " "
+        [email protected]
+          [email protected]
+            [email protected] "("
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected]
+                    [email protected] "Copy"
+            [email protected] ")"
+          [email protected] " "
+          [email protected] "+"
+          [email protected] " "
+          [email protected]
+            [email protected] "("
+            [email protected] "?"
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected]
+                    [email protected] "Sized"
+            [email protected] ")"
+          [email protected] " "
+          [email protected] "+"
+          [email protected] " "
+          [email protected]
+            [email protected] "("
+            [email protected]
+              [email protected] "for"
+              [email protected]
+                [email protected] "<"
+                [email protected]
+                  [email protected] "\'a"
+                [email protected] ">"
+              [email protected] " "
+              [email protected]
+                [email protected]
+                  [email protected]
+                    [email protected]
+                      [email protected] "Trait"
+                    [email protected]
+                      [email protected] "<"
+                      [email protected]
+                        [email protected] "\'a"
+                      [email protected] ">"
+            [email protected] ")"
+      [email protected] ">"
+    [email protected]
+      [email protected] "("
+      [email protected] ")"
+    [email protected] " "
+    [email protected]
+      [email protected] "{"
+      [email protected] "}"
+  [email protected] "\n\n"
+  [email protected]
+    [email protected] "fn"
+    [email protected] " "
+    [email protected]
+      [email protected] "main"
+    [email protected]
+      [email protected] "("
+      [email protected] ")"
+    [email protected] " "
+    [email protected]
+      [email protected] "{"
+      [email protected] "\n    "
+      [email protected]
+        [email protected] "let"
+        [email protected] " "
+        [email protected]
+          [email protected] "_"
+        [email protected] ":"
+        [email protected] " "
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected]
+                    [email protected]
+                      [email protected] "Box"
+                    [email protected]
+                      [email protected] "<"
+                      [email protected]
+                        [email protected]
+                          [email protected] "("
+                          [email protected]
+                            [email protected]
+                              [email protected]
+                                [email protected]
+                                  [email protected] "Copy"
+                          [email protected] ")"
+            [email protected] " "
+            [email protected] "+"
+            [email protected] " "
+            [email protected]
+              [email protected] "("
+              [email protected] "?"
+              [email protected]
+                [email protected]
+                  [email protected]
+                    [email protected]
+                      [email protected] "Sized"
+              [email protected] ")"
+            [email protected] " "
+            [email protected] "+"
+            [email protected] " "
+            [email protected]
+              [email protected] "("
+              [email protected]
+                [email protected] "for"
+                [email protected]
+                  [email protected] "<"
+                  [email protected]
+                    [email protected] "\'a"
+                  [email protected] ">"
+                [email protected] " "
+                [email protected]
+                  [email protected]
+                    [email protected]
+                      [email protected]
+                        [email protected] "Trait"
+                      [email protected]
+                        [email protected] "<"
+                        [email protected]
+                          [email protected] "\'a"
+                        [email protected] ">"
+              [email protected] ")"
+      [email protected]
+        [email protected]
+          [email protected] ">"
+        [email protected] ";"
+      [email protected] "\n    "
+      [email protected]
+        [email protected] "let"
+        [email protected] " "
+        [email protected]
+          [email protected] "_"
+        [email protected] ":"
+        [email protected] " "
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected] "Box"
+              [email protected]
+                [email protected] "<"
+                [email protected]
+                  [email protected]
+                    [email protected] "("
+                    [email protected]
+                      [email protected] "?"
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected] "Sized"
+      [email protected]
+        [email protected]
+          [email protected] ")"
+      [email protected] " "
+      [email protected]
+        [email protected]
+          [email protected] "+"
+      [email protected] " "
+      [email protected]
+        [email protected]
+          [email protected] "("
+          [email protected]
+            [email protected] "for"
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected] "<"
+                  [email protected]
+                    [email protected] "\'a"
+                  [email protected] ">"
+            [email protected] " "
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected]
+                    [email protected]
+                      [email protected]
+                        [email protected]
+                          [email protected]
+                            [email protected] "Trait"
+                    [email protected] "<"
+                    [email protected]
+                      [email protected] "\'a"
+                  [email protected] ">"
+                  [email protected]
+                    [email protected] ")"
+                [email protected] " "
+                [email protected] "+"
+                [email protected] " "
+                [email protected]
+                  [email protected] "("
+                  [email protected]
+                    [email protected]
+                      [email protected]
+                        [email protected]
+                          [email protected] "Copy"
+                  [email protected] ")"
+              [email protected] ">"
+              [email protected]
+                [email protected] ";"
+      [email protected] "\n    "
+      [email protected]
+        [email protected] "let"
+        [email protected] " "
+        [email protected]
+          [email protected] "_"
+        [email protected] ":"
+        [email protected] " "
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected]
+                    [email protected]
+                      [email protected] "Box"
+                    [email protected]
+                      [email protected] "<"
+                      [email protected]
+                        [email protected]
+                          [email protected] "("
+                          [email protected]
+                            [email protected] "for"
+                            [email protected]
+                              [email protected] "<"
+                              [email protected]
+                                [email protected] "\'a"
+                              [email protected] ">"
+                            [email protected] " "
+                            [email protected]
+                              [email protected]
+                                [email protected]
+                                  [email protected]
+                                    [email protected] "Trait"
+                                  [email protected]
+                                    [email protected] "<"
+                                    [email protected]
+                                      [email protected] "\'a"
+                                    [email protected] ">"
+                          [email protected] ")"
+            [email protected] " "
+            [email protected] "+"
+            [email protected] " "
+            [email protected]
+              [email protected] "("
+              [email protected]
+                [email protected]
+                  [email protected]
+                    [email protected]
+                      [email protected] "Copy"
+              [email protected] ")"
+            [email protected] " "
+            [email protected] "+"
+            [email protected] " "
+            [email protected]
+              [email protected] "("
+              [email protected] "?"
+              [email protected]
+                [email protected]
+                  [email protected]
+                    [email protected]
+                      [email protected] "Sized"
+              [email protected] ")"
+      [email protected]
+        [email protected]
+          [email protected] ">"
+        [email protected] ";"
+      [email protected] "\n"
+      [email protected] "}"
+  [email protected] "\n"
+error 88..88: expected COMMA
+error 88..88: expected R_ANGLE
+error 121..121: expected SEMICOLON
+error 121..121: expected expression
+error 140..140: expected type
+error 141..141: expected R_PAREN
+error 141..141: expected COMMA
+error 141..141: expected R_ANGLE
+error 141..141: expected SEMICOLON
+error 146..146: expected SEMICOLON
+error 146..146: expected expression
+error 147..147: expected SEMICOLON
+error 148..148: expected expression
+error 149..149: expected SEMICOLON
+error 155..155: expected type
+error 158..158: expected IN_KW
+error 165..165: expected expression
+error 168..168: expected expression
+error 179..179: expected expression
+error 180..180: expected a block
+error 180..180: expected COMMA
+error 180..180: expected expression
+error 180..180: expected R_PAREN
+error 180..180: expected SEMICOLON
+error 215..215: expected COMMA
+error 215..215: expected R_ANGLE
+error 235..235: expected SEMICOLON
+error 235..235: expected expression
diff --git a/crates/syntax/test_data/parser/err/0024_many_type_parens.rs b/crates/syntax/test_data/parser/err/0024_many_type_parens.rs
new file mode 100644
index 000000000..6c2e95c02
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0024_many_type_parens.rs
@@ -0,0 +1,7 @@
+fn f<T: (Copy) + (?Sized) + (for<'a> Trait<'a>)>() {}
+
+fn main() {
+    let _: Box<(Copy) + (?Sized) + (for<'a> Trait<'a>)>;
+    let _: Box<(?Sized) + (for<'a> Trait<'a>) + (Copy)>;
+    let _: Box<(for<'a> Trait<'a>) + (Copy) + (?Sized)>;
+}
diff --git a/crates/syntax/test_data/parser/err/0025_nope.rast b/crates/syntax/test_data/parser/err/0025_nope.rast
new file mode 100644
index 000000000..83fc9fe77
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0025_nope.rast
@@ -0,0 +1,202 @@
+[email protected]
+  [email protected]
+    [email protected] "fn"
+    [email protected] " "
+    [email protected]
+      [email protected] "main"
+    [email protected]
+      [email protected] "("
+      [email protected] ")"
+    [email protected] " "
+    [email protected]
+      [email protected] "{"
+      [email protected] "\n    "
+      [email protected]
+        [email protected] "enum"
+        [email protected] " "
+        [email protected]
+          [email protected] "Test"
+        [email protected] " "
+        [email protected]
+          [email protected] "{"
+          [email protected] "\n        "
+          [email protected]
+            [email protected]
+              [email protected] "Var1"
+          [email protected] ","
+          [email protected] "\n        "
+          [email protected]
+            [email protected]
+              [email protected] "Var2"
+            [email protected]
+              [email protected] "("
+              [email protected]
+                [email protected]
+                  [email protected]
+                    [email protected]
+                      [email protected]
+                        [email protected] "String"
+              [email protected] ")"
+          [email protected] ","
+          [email protected] "\n        "
+          [email protected]
+            [email protected]
+              [email protected] "Var3"
+            [email protected] " "
+            [email protected]
+              [email protected] "{"
+              [email protected] "\n            "
+              [email protected]
+                [email protected]
+                  [email protected] "abc"
+                [email protected] ":"
+              [email protected] " "
+              [email protected]
+                [email protected] "{"
+                [email protected] "}"
+              [email protected]
+                [email protected] ","
+              [email protected] " "
+              [email protected] "//~ ERROR: expected t ..."
+              [email protected] "\n        "
+              [email protected] "}"
+          [email protected] ","
+          [email protected] "\n    "
+          [email protected] "}"
+      [email protected] "\n\n    "
+      [email protected] "// recover..."
+      [email protected] "\n    "
+      [email protected]
+        [email protected] "let"
+        [email protected] " "
+        [email protected]
+          [email protected]
+            [email protected] "a"
+        [email protected] " "
+        [email protected] "="
+        [email protected] " "
+        [email protected]
+          [email protected] "1"
+        [email protected] ";"
+      [email protected] "\n    "
+      [email protected]
+        [email protected] "enum"
+        [email protected] " "
+        [email protected]
+          [email protected] "Test2"
+        [email protected] " "
+        [email protected]
+          [email protected] "{"
+          [email protected] "\n        "
+          [email protected]
+            [email protected]
+              [email protected] "Fine"
+          [email protected] ","
+          [email protected] "\n    "
+          [email protected] "}"
+      [email protected] "\n\n    "
+      [email protected]
+        [email protected] "enum"
+        [email protected] " "
+        [email protected]
+          [email protected] "Test3"
+        [email protected] " "
+        [email protected]
+          [email protected] "{"
+          [email protected] "\n        "
+          [email protected]
+            [email protected]
+              [email protected] "StillFine"
+            [email protected] " "
+            [email protected]
+              [email protected] "{"
+              [email protected] "\n            "
+              [email protected]
+                [email protected]
+                  [email protected] "def"
+                [email protected] ":"
+                [email protected] " "
+                [email protected]
+                  [email protected]
+                    [email protected]
+                      [email protected]
+                        [email protected] "i32"
+              [email protected] ","
+              [email protected] "\n        "
+              [email protected] "}"
+          [email protected] ","
+          [email protected] "\n    "
+          [email protected] "}"
+      [email protected] "\n\n    "
+      [email protected]
+        [email protected]
+          [email protected] "{"
+          [email protected] "\n        "
+          [email protected]
+            [email protected] "// fail again"
+            [email protected] "\n        "
+            [email protected] "enum"
+            [email protected] " "
+            [email protected]
+              [email protected] "Test4"
+            [email protected] " "
+            [email protected]
+              [email protected] "{"
+              [email protected] "\n            "
+              [email protected]
+                [email protected]
+                  [email protected] "Nope"
+                [email protected]
+                  [email protected] "("
+                  [email protected]
+                    [email protected]
+                      [email protected]
+                        [email protected]
+                          [email protected]
+                            [email protected] "i32"
+                  [email protected] " "
+                  [email protected]
+              [email protected]
+                [email protected] "{"
+                [email protected] "}"
+              [email protected]
+                [email protected] ")"
+              [email protected] " "
+              [email protected] "//~ ERROR: found `{`"
+              [email protected] "\n                     ..."
+              [email protected] "//~^ ERROR: found `{`"
+              [email protected] "\n        "
+              [email protected] "}"
+          [email protected] "\n    "
+          [email protected] "}"
+      [email protected] "\n    "
+      [email protected] "// still recover later"
+      [email protected] "\n    "
+      [email protected]
+        [email protected] "let"
+        [email protected] " "
+        [email protected]
+          [email protected]
+            [email protected] "bad_syntax"
+        [email protected] " "
+        [email protected] "="
+        [email protected] " "
+        [email protected]
+          [email protected] "_"
+        [email protected] ";"
+      [email protected] " "
+      [email protected] "//~ ERROR: expected e ..."
+      [email protected] "\n"
+      [email protected] "}"
+  [email protected] "\n"
+error 95..95: expected type
+error 95..95: expected COMMA
+error 96..96: expected field
+error 98..98: expected field declaration
+error 371..371: expected COMMA
+error 372..372: expected a type
+error 372..372: expected R_PAREN
+error 372..372: expected COMMA
+error 372..372: expected enum variant
+error 374..374: expected enum variant
+error 508..508: expected expression
diff --git a/crates/syntax/test_data/parser/err/0025_nope.rs b/crates/syntax/test_data/parser/err/0025_nope.rs
new file mode 100644
index 000000000..28726ed51
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0025_nope.rs
@@ -0,0 +1,31 @@
+fn main() {
+    enum Test {
+        Var1,
+        Var2(String),
+        Var3 {
+            abc: {}, //~ ERROR: expected type, found `{`
+        },
+    }
+
+    // recover...
+    let a = 1;
+    enum Test2 {
+        Fine,
+    }
+
+    enum Test3 {
+        StillFine {
+            def: i32,
+        },
+    }
+
+    {
+        // fail again
+        enum Test4 {
+            Nope(i32 {}) //~ ERROR: found `{`
+                         //~^ ERROR: found `{`
+        }
+    }
+    // still recover later
+    let bad_syntax = _; //~ ERROR: expected expression, found reserved identifier `_`
+}
diff --git a/crates/syntax/test_data/parser/err/0026_imp_recovery.rast b/crates/syntax/test_data/parser/err/0026_imp_recovery.rast
new file mode 100644
index 000000000..1b08c834e
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0026_imp_recovery.rast
@@ -0,0 +1,49 @@
+[email protected]
+  [email protected]
+    [email protected] "impl"
+    [email protected]
+      [email protected] "<"
+      [email protected]
+        [email protected]
+          [email protected] "T"
+        [email protected] ":"
+        [email protected] " "
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected]
+                    [email protected] "Clone"
+      [email protected] ">"
+  [email protected] "\n"
+  [email protected]
+    [email protected] "impl"
+    [email protected]
+      [email protected] "<"
+      [email protected]
+        [email protected]
+          [email protected] "T"
+      [email protected] ">"
+    [email protected] " "
+    [email protected]
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected] "OnceCell"
+          [email protected]
+            [email protected] "<"
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected]
+                    [email protected]
+                      [email protected] "T"
+            [email protected] ">"
+    [email protected] " "
+    [email protected]
+      [email protected] "{"
+      [email protected] "}"
+  [email protected] "\n"
+error 14..14: expected trait or type
+error 14..14: expected `{`
diff --git a/crates/syntax/test_data/parser/err/0026_imp_recovery.rs b/crates/syntax/test_data/parser/err/0026_imp_recovery.rs
new file mode 100644
index 000000000..829ca1c4b
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0026_imp_recovery.rs
@@ -0,0 +1,2 @@
+impl<T: Clone>
+impl<T> OnceCell<T> {}
diff --git a/crates/syntax/test_data/parser/err/0027_incomplere_where_for.rast b/crates/syntax/test_data/parser/err/0027_incomplere_where_for.rast
new file mode 100644
index 000000000..a8e42e6ea
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0027_incomplere_where_for.rast
@@ -0,0 +1,27 @@
+[email protected]
+  [email protected]
+    [email protected] "fn"
+    [email protected] " "
+    [email protected]
+      [email protected] "foo"
+    [email protected]
+      [email protected] "("
+      [email protected] ")"
+    [email protected] "\n    "
+    [email protected]
+      [email protected] "where"
+      [email protected] " "
+      [email protected]
+        [email protected] "for"
+        [email protected]
+          [email protected] "<"
+          [email protected]
+            [email protected] "\'a"
+          [email protected] ">"
+    [email protected] "\n"
+    [email protected]
+      [email protected] "{"
+      [email protected] "}"
+  [email protected] "\n"
+error 26..26: expected type
+error 26..26: expected colon
diff --git a/crates/syntax/test_data/parser/err/0027_incomplere_where_for.rs b/crates/syntax/test_data/parser/err/0027_incomplere_where_for.rs
new file mode 100644
index 000000000..2792c2084
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0027_incomplere_where_for.rs
@@ -0,0 +1,3 @@
+fn foo()
+    where for<'a>
+{}
diff --git a/crates/syntax/test_data/parser/err/0029_field_completion.rast b/crates/syntax/test_data/parser/err/0029_field_completion.rast
new file mode 100644
index 000000000..c6402cdd8
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0029_field_completion.rast
@@ -0,0 +1,35 @@
+[email protected]
+  [email protected]
+    [email protected] "fn"
+    [email protected] " "
+    [email protected]
+      [email protected] "foo"
+    [email protected]
+      [email protected] "("
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected] "a"
+        [email protected] ":"
+        [email protected] " "
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected] "A"
+      [email protected] ")"
+    [email protected] " "
+    [email protected]
+      [email protected] "{"
+      [email protected] "\n    "
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected] "a"
+        [email protected] "."
+      [email protected] "\n"
+      [email protected] "}"
+  [email protected] "\n"
+error 21..21: expected field name or number
diff --git a/crates/syntax/test_data/parser/err/0029_field_completion.rs b/crates/syntax/test_data/parser/err/0029_field_completion.rs
new file mode 100644
index 000000000..a7cdc17bb
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0029_field_completion.rs
@@ -0,0 +1,3 @@
+fn foo(a: A) {
+    a.
+}
diff --git a/crates/syntax/test_data/parser/err/0031_block_inner_attrs.rast b/crates/syntax/test_data/parser/err/0031_block_inner_attrs.rast
new file mode 100644
index 000000000..a443b37db
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0031_block_inner_attrs.rast
@@ -0,0 +1,121 @@
+[email protected]
+  [email protected]
+    [email protected] "fn"
+    [email protected] " "
+    [email protected]
+      [email protected] "block"
+    [email protected]
+      [email protected] "("
+      [email protected] ")"
+    [email protected] " "
+    [email protected]
+      [email protected] "{"
+      [email protected] "\n    "
+      [email protected]
+        [email protected] "let"
+        [email protected] " "
+        [email protected]
+          [email protected]
+            [email protected] "inner"
+        [email protected] " "
+        [email protected] "="
+        [email protected] " "
+        [email protected]
+          [email protected] "{"
+          [email protected] "\n        "
+          [email protected]
+            [email protected] "#"
+            [email protected] "!"
+            [email protected] "["
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected] "doc"
+            [email protected]
+              [email protected] "("
+              [email protected] "\"Inner attributes not ..."
+              [email protected] ")"
+            [email protected] "]"
+          [email protected] "\n        "
+          [email protected] "//! Nor are ModuleDoc ..."
+          [email protected] "\n    "
+          [email protected] "}"
+        [email protected] ";"
+      [email protected] "\n    "
+      [email protected]
+        [email protected]
+          [email protected] "if"
+          [email protected] " "
+          [email protected]
+            [email protected]
+              [email protected] "true"
+          [email protected] " "
+          [email protected]
+            [email protected] "{"
+            [email protected] "\n        "
+            [email protected]
+              [email protected] "#"
+              [email protected] "!"
+              [email protected] "["
+              [email protected]
+                [email protected]
+                  [email protected]
+                    [email protected] "doc"
+              [email protected]
+                [email protected] "("
+                [email protected] "\"Nor here\""
+                [email protected] ")"
+              [email protected] "]"
+            [email protected] "\n        "
+            [email protected]
+              [email protected] "#"
+              [email protected] "!"
+              [email protected] "["
+              [email protected]
+                [email protected]
+                  [email protected]
+                    [email protected] "doc"
+              [email protected]
+                [email protected] "("
+                [email protected] "\"We error on each attr\""
+                [email protected] ")"
+              [email protected] "]"
+            [email protected] "\n        "
+            [email protected] "//! Nor are ModuleDoc ..."
+            [email protected] "\n    "
+            [email protected] "}"
+      [email protected] "\n    "
+      [email protected]
+        [email protected] "while"
+        [email protected] " "
+        [email protected]
+          [email protected]
+            [email protected] "true"
+        [email protected] " "
+        [email protected]
+          [email protected] "{"
+          [email protected] "\n        "
+          [email protected]
+            [email protected] "#"
+            [email protected] "!"
+            [email protected] "["
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected] "doc"
+            [email protected]
+              [email protected] "("
+              [email protected] "\"Nor here\""
+              [email protected] ")"
+            [email protected] "]"
+          [email protected] "\n        "
+          [email protected] "//! Nor are ModuleDoc ..."
+          [email protected] "\n    "
+          [email protected] "}"
+      [email protected] "\n"
+      [email protected] "}"
+  [email protected] "\n"
+error 39..83: A block in this position cannot accept inner attributes
+error 152..171: A block in this position cannot accept inner attributes
+error 180..212: A block in this position cannot accept inner attributes
+error 283..302: A block in this position cannot accept inner attributes
diff --git a/crates/syntax/test_data/parser/err/0031_block_inner_attrs.rs b/crates/syntax/test_data/parser/err/0031_block_inner_attrs.rs
new file mode 100644
index 000000000..6a04f2d0a
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0031_block_inner_attrs.rs
@@ -0,0 +1,15 @@
+fn block() {
+    let inner = {
+        #![doc("Inner attributes not allowed here")]
+        //! Nor are ModuleDoc comments
+    };
+    if true {
+        #![doc("Nor here")]
+        #![doc("We error on each attr")]
+        //! Nor are ModuleDoc comments
+    }
+    while true {
+        #![doc("Nor here")]
+        //! Nor are ModuleDoc comments
+    }
+}
diff --git a/crates/syntax/test_data/parser/err/0032_match_arms_inner_attrs.rast b/crates/syntax/test_data/parser/err/0032_match_arms_inner_attrs.rast
new file mode 100644
index 000000000..672dd054a
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0032_match_arms_inner_attrs.rast
@@ -0,0 +1,203 @@
+[email protected]
+  [email protected]
+    [email protected] "fn"
+    [email protected] " "
+    [email protected]
+      [email protected] "foo"
+    [email protected]
+      [email protected] "("
+      [email protected] ")"
+    [email protected] " "
+    [email protected]
+      [email protected] "{"
+      [email protected] "\n    "
+      [email protected]
+        [email protected]
+          [email protected] "match"
+          [email protected] " "
+          [email protected]
+            [email protected] "("
+            [email protected] ")"
+          [email protected] " "
+          [email protected]
+            [email protected] "{"
+            [email protected] "\n        "
+            [email protected]
+              [email protected]
+                [email protected] "_"
+              [email protected] " "
+              [email protected] "=>"
+              [email protected] " "
+              [email protected]
+                [email protected] "("
+                [email protected] ")"
+            [email protected] ","
+            [email protected] "\n        "
+            [email protected]
+              [email protected]
+                [email protected] "#"
+              [email protected]
+                [email protected] "!"
+              [email protected]
+                [email protected] "["
+                [email protected]
+                  [email protected]
+                    [email protected]
+                      [email protected]
+                        [email protected]
+                          [email protected] "doc"
+                  [email protected]
+                    [email protected] "("
+                    [email protected]
+                      [email protected] "\"Not allowed here\""
+                    [email protected] ")"
+                [email protected] "]"
+            [email protected] "\n        "
+            [email protected]
+              [email protected]
+                [email protected] "_"
+              [email protected] " "
+              [email protected] "=>"
+              [email protected] " "
+              [email protected]
+                [email protected] "("
+                [email protected] ")"
+            [email protected] ","
+            [email protected] "\n    "
+            [email protected] "}"
+      [email protected] "\n\n    "
+      [email protected]
+        [email protected]
+          [email protected] "match"
+          [email protected] " "
+          [email protected]
+            [email protected] "("
+            [email protected] ")"
+          [email protected] " "
+          [email protected]
+            [email protected] "{"
+            [email protected] "\n        "
+            [email protected]
+              [email protected]
+                [email protected] "_"
+              [email protected] " "
+              [email protected] "=>"
+              [email protected] " "
+              [email protected]
+                [email protected] "("
+                [email protected] ")"
+            [email protected] ","
+            [email protected] "\n        "
+            [email protected]
+              [email protected]
+                [email protected] "_"
+              [email protected] " "
+              [email protected] "=>"
+              [email protected] " "
+              [email protected]
+                [email protected] "("
+                [email protected] ")"
+            [email protected] ","
+            [email protected] "\n        "
+            [email protected]
+              [email protected]
+                [email protected] "#"
+              [email protected]
+                [email protected] "!"
+              [email protected]
+                [email protected] "["
+                [email protected]
+                  [email protected]
+                    [email protected]
+                      [email protected]
+                        [email protected]
+                          [email protected] "doc"
+                  [email protected]
+                    [email protected] "("
+                    [email protected]
+                      [email protected] "\"Nor here\""
+                    [email protected] ")"
+                [email protected] "]"
+            [email protected] "\n    "
+            [email protected] "}"
+      [email protected] "\n\n    "
+      [email protected]
+        [email protected] "match"
+        [email protected] " "
+        [email protected]
+          [email protected] "("
+          [email protected] ")"
+        [email protected] " "
+        [email protected]
+          [email protected] "{"
+          [email protected] "\n        "
+          [email protected]
+            [email protected]
+              [email protected] "#"
+              [email protected] "["
+              [email protected]
+                [email protected]
+                  [email protected]
+                    [email protected] "cfg"
+              [email protected]
+                [email protected] "("
+                [email protected] "test"
+                [email protected] ")"
+              [email protected] "]"
+            [email protected] "\n        "
+            [email protected]
+              [email protected] "#"
+            [email protected]
+              [email protected] "!"
+            [email protected]
+              [email protected] "["
+              [email protected]
+                [email protected]
+                  [email protected]
+                    [email protected]
+                      [email protected]
+                        [email protected] "doc"
+                [email protected]
+                  [email protected] "("
+                  [email protected]
+                    [email protected] "\"Nor here\""
+                  [email protected] ")"
+              [email protected] "]"
+          [email protected] "\n        "
+          [email protected]
+            [email protected]
+              [email protected] "_"
+            [email protected] " "
+            [email protected] "=>"
+            [email protected] " "
+            [email protected]
+              [email protected] "("
+              [email protected] ")"
+          [email protected] ","
+          [email protected] "\n        "
+          [email protected]
+            [email protected]
+              [email protected] "_"
+            [email protected] " "
+            [email protected] "=>"
+            [email protected] " "
+            [email protected]
+              [email protected] "("
+              [email protected] ")"
+          [email protected] ","
+          [email protected] "\n    "
+          [email protected] "}"
+      [email protected] "\n"
+      [email protected] "}"
+  [email protected] "\n"
+error 52..52: expected `[`
+error 52..52: expected pattern
+error 53..53: expected FAT_ARROW
+error 78..78: expected COMMA
+error 161..161: expected `[`
+error 161..161: expected pattern
+error 162..162: expected FAT_ARROW
+error 232..232: expected `[`
+error 232..232: expected pattern
+error 233..233: expected FAT_ARROW
+error 250..250: expected COMMA
diff --git a/crates/syntax/test_data/parser/err/0032_match_arms_inner_attrs.rs b/crates/syntax/test_data/parser/err/0032_match_arms_inner_attrs.rs
new file mode 100644
index 000000000..06aa47770
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0032_match_arms_inner_attrs.rs
@@ -0,0 +1,20 @@
+fn foo() {
+    match () {
+        _ => (),
+        #![doc("Not allowed here")]
+        _ => (),
+    }
+
+    match () {
+        _ => (),
+        _ => (),
+        #![doc("Nor here")]
+    }
+
+    match () {
+        #[cfg(test)]
+        #![doc("Nor here")]
+        _ => (),
+        _ => (),
+    }
+}
diff --git a/crates/syntax/test_data/parser/err/0033_match_arms_outer_attrs.rast b/crates/syntax/test_data/parser/err/0033_match_arms_outer_attrs.rast
new file mode 100644
index 000000000..33bb085e9
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0033_match_arms_outer_attrs.rast
@@ -0,0 +1,66 @@
+[email protected]
+  [email protected]
+    [email protected] "fn"
+    [email protected] " "
+    [email protected]
+      [email protected] "foo"
+    [email protected]
+      [email protected] "("
+      [email protected] ")"
+    [email protected] " "
+    [email protected]
+      [email protected] "{"
+      [email protected] "\n    "
+      [email protected]
+        [email protected] "match"
+        [email protected] " "
+        [email protected]
+          [email protected] "("
+          [email protected] ")"
+        [email protected] " "
+        [email protected]
+          [email protected] "{"
+          [email protected] "\n        "
+          [email protected]
+            [email protected]
+              [email protected] "_"
+            [email protected] " "
+            [email protected] "=>"
+            [email protected] " "
+            [email protected]
+              [email protected] "("
+              [email protected] ")"
+          [email protected] ","
+          [email protected] "\n        "
+          [email protected]
+            [email protected]
+              [email protected] "_"
+            [email protected] " "
+            [email protected] "=>"
+            [email protected] " "
+            [email protected]
+              [email protected] "("
+              [email protected] ")"
+          [email protected] ","
+          [email protected] "\n        "
+          [email protected]
+            [email protected]
+              [email protected] "#"
+              [email protected] "["
+              [email protected]
+                [email protected]
+                  [email protected]
+                    [email protected] "cfg"
+              [email protected]
+                [email protected] "("
+                [email protected] "test"
+                [email protected] ")"
+              [email protected] "]"
+          [email protected] "\n    "
+          [email protected] "}"
+      [email protected] "\n"
+      [email protected] "}"
+  [email protected] "\n"
+error 80..80: expected pattern
+error 80..80: expected FAT_ARROW
+error 80..80: expected expression
diff --git a/crates/syntax/test_data/parser/err/0033_match_arms_outer_attrs.rs b/crates/syntax/test_data/parser/err/0033_match_arms_outer_attrs.rs
new file mode 100644
index 000000000..4635222da
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0033_match_arms_outer_attrs.rs
@@ -0,0 +1,7 @@
+fn foo() {
+    match () {
+        _ => (),
+        _ => (),
+        #[cfg(test)]
+    }
+}
diff --git a/crates/syntax/test_data/parser/err/0034_bad_box_pattern.rast b/crates/syntax/test_data/parser/err/0034_bad_box_pattern.rast
new file mode 100644
index 000000000..d9d49bfb5
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0034_bad_box_pattern.rast
@@ -0,0 +1,95 @@
+[email protected]
+  [email protected]
+    [email protected] "fn"
+    [email protected] " "
+    [email protected]
+      [email protected] "main"
+    [email protected]
+      [email protected] "("
+      [email protected] ")"
+    [email protected] " "
+    [email protected]
+      [email protected] "{"
+      [email protected] "\n    "
+      [email protected]
+        [email protected] "let"
+        [email protected] " "
+        [email protected]
+          [email protected] "ref"
+          [email protected] " "
+          [email protected]
+            [email protected] "box"
+      [email protected] " "
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected] "i"
+          [email protected] " "
+          [email protected] "="
+          [email protected] " "
+          [email protected]
+            [email protected] "("
+            [email protected] ")"
+        [email protected] ";"
+      [email protected] "\n    "
+      [email protected]
+        [email protected] "let"
+        [email protected] " "
+        [email protected]
+          [email protected] "mut"
+          [email protected] " "
+          [email protected]
+            [email protected] "box"
+      [email protected] " "
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected] "i"
+          [email protected] " "
+          [email protected] "="
+          [email protected] " "
+          [email protected]
+            [email protected] "("
+            [email protected] ")"
+        [email protected] ";"
+      [email protected] "\n    "
+      [email protected]
+        [email protected] "let"
+        [email protected] " "
+        [email protected]
+          [email protected] "ref"
+          [email protected] " "
+          [email protected] "mut"
+          [email protected] " "
+          [email protected]
+            [email protected] "box"
+      [email protected] " "
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected] "i"
+          [email protected] " "
+          [email protected] "="
+          [email protected] " "
+          [email protected]
+            [email protected] "("
+            [email protected] ")"
+        [email protected] ";"
+      [email protected] "\n"
+      [email protected] "}"
+  [email protected] "\n\n"
+error 24..24: expected a name
+error 27..27: expected SEMICOLON
+error 48..48: expected a name
+error 51..51: expected SEMICOLON
+error 76..76: expected a name
+error 79..79: expected SEMICOLON
diff --git a/crates/syntax/test_data/parser/err/0034_bad_box_pattern.rs b/crates/syntax/test_data/parser/err/0034_bad_box_pattern.rs
new file mode 100644
index 000000000..d3fa2e468
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0034_bad_box_pattern.rs
@@ -0,0 +1,6 @@
+fn main() {
+    let ref box i = ();
+    let mut box i = ();
+    let ref mut box i = ();
+}
+
diff --git a/crates/syntax/test_data/parser/err/0035_use_recover.rast b/crates/syntax/test_data/parser/err/0035_use_recover.rast
new file mode 100644
index 000000000..2f03709eb
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0035_use_recover.rast
@@ -0,0 +1,53 @@
+[email protected]
+  [email protected]
+    [email protected] "use"
+    [email protected] " "
+    [email protected]
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected] "foo"
+        [email protected] "::"
+        [email protected]
+          [email protected]
+            [email protected] "bar"
+    [email protected] ";"
+  [email protected] "\n"
+  [email protected]
+    [email protected] "use"
+  [email protected] "\n"
+  [email protected]
+    [email protected] "use"
+    [email protected] " "
+    [email protected]
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected] "crate"
+        [email protected] "::"
+        [email protected]
+          [email protected]
+            [email protected] "baz"
+    [email protected] ";"
+  [email protected] "\n"
+  [email protected]
+    [email protected] "use"
+  [email protected] "\n"
+  [email protected]
+    [email protected] "fn"
+    [email protected] " "
+    [email protected]
+      [email protected] "f"
+    [email protected]
+      [email protected] "("
+      [email protected] ")"
+    [email protected] " "
+    [email protected]
+      [email protected] "{"
+      [email protected] "}"
+  [email protected] "\n"
+error 17..17: expected one of `*`, `::`, `{`, `self`, `super` or an identifier
+error 17..17: expected SEMICOLON
+error 37..37: expected one of `*`, `::`, `{`, `self`, `super` or an identifier
+error 37..37: expected SEMICOLON
diff --git a/crates/syntax/test_data/parser/err/0035_use_recover.rs b/crates/syntax/test_data/parser/err/0035_use_recover.rs
new file mode 100644
index 000000000..4a2668126
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0035_use_recover.rs
@@ -0,0 +1,5 @@
+use foo::bar;
+use
+use crate::baz;
+use
+fn f() {}
diff --git a/crates/syntax/test_data/parser/err/0036_partial_use.rast b/crates/syntax/test_data/parser/err/0036_partial_use.rast
new file mode 100644
index 000000000..ef6172f8a
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0036_partial_use.rast
@@ -0,0 +1,51 @@
+[email protected]
+  [email protected]
+    [email protected] "use"
+    [email protected] " "
+    [email protected]
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected] "std"
+      [email protected] "::"
+      [email protected]
+        [email protected] "{"
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected] "error"
+            [email protected] "::"
+            [email protected]
+              [email protected]
+                [email protected] "Error"
+        [email protected]
+          [email protected] ";"
+        [email protected] "\n"
+        [email protected]
+          [email protected] "use"
+        [email protected] " "
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected] "std"
+            [email protected] "::"
+            [email protected]
+              [email protected]
+                [email protected] "io"
+        [email protected]
+          [email protected] ";"
+  [email protected] "\n"
+error 22..22: expected COMMA
+error 22..22: expected one of `*`, `::`, `{`, `self`, `super` or an identifier
+error 23..23: expected COMMA
+error 24..24: expected one of `*`, `::`, `{`, `self`, `super` or an identifier
+error 27..27: expected COMMA
+error 35..35: expected COMMA
+error 35..35: expected one of `*`, `::`, `{`, `self`, `super` or an identifier
+error 36..36: expected COMMA
+error 36..36: expected R_CURLY
+error 36..36: expected SEMICOLON
diff --git a/crates/syntax/test_data/parser/err/0036_partial_use.rs b/crates/syntax/test_data/parser/err/0036_partial_use.rs
new file mode 100644
index 000000000..d521a5bb2
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0036_partial_use.rs
@@ -0,0 +1,2 @@
+use std::{error::Error;
+use std::io;
diff --git a/crates/syntax/test_data/parser/err/0037_visibility_in_traits.rast b/crates/syntax/test_data/parser/err/0037_visibility_in_traits.rast
new file mode 100644
index 000000000..faf87d6e5
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0037_visibility_in_traits.rast
@@ -0,0 +1,97 @@
+[email protected]
+  [email protected]
+    [email protected] "impl"
+    [email protected] " "
+    [email protected]
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected] "T"
+    [email protected] " "
+    [email protected] "for"
+    [email protected] " "
+    [email protected]
+      [email protected] "("
+      [email protected] ")"
+    [email protected] " "
+    [email protected]
+      [email protected] "{"
+      [email protected] "\n    "
+      [email protected]
+        [email protected] "fn"
+        [email protected] " "
+        [email protected]
+          [email protected] "foo"
+        [email protected]
+          [email protected] "("
+          [email protected] ")"
+        [email protected] " "
+        [email protected]
+          [email protected] "{"
+          [email protected] "}"
+      [email protected] "\n    "
+      [email protected]
+        [email protected]
+          [email protected] "pub"
+        [email protected] " "
+        [email protected] "fn"
+        [email protected] " "
+        [email protected]
+          [email protected] "bar"
+        [email protected]
+          [email protected] "("
+          [email protected] ")"
+        [email protected] " "
+        [email protected]
+          [email protected] "{"
+          [email protected] "}"
+      [email protected] "\n    "
+      [email protected]
+        [email protected]
+          [email protected] "pub"
+          [email protected] "("
+          [email protected] "crate"
+          [email protected] ")"
+        [email protected] " "
+        [email protected] "type"
+        [email protected] " "
+        [email protected]
+          [email protected] "Baz"
+        [email protected] " "
+        [email protected] "="
+        [email protected] " "
+        [email protected]
+          [email protected] "("
+          [email protected] ")"
+        [email protected] ";"
+      [email protected] "\n    "
+      [email protected]
+        [email protected]
+          [email protected] "pub"
+          [email protected] "("
+          [email protected] "crate"
+          [email protected] ")"
+        [email protected] " "
+        [email protected] "const"
+        [email protected] " "
+        [email protected]
+          [email protected] "C"
+        [email protected] ":"
+        [email protected] " "
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected] "i32"
+        [email protected] " "
+        [email protected] "="
+        [email protected] " "
+        [email protected]
+          [email protected] "92"
+        [email protected] ";"
+      [email protected] "\n"
+      [email protected] "}"
+  [email protected] "\n"
+error 36..39: Unnecessary visibility qualifier
+error 56..66: Unnecessary visibility qualifier
+error 86..96: Unnecessary visibility qualifier
diff --git a/crates/syntax/test_data/parser/err/0037_visibility_in_traits.rs b/crates/syntax/test_data/parser/err/0037_visibility_in_traits.rs
new file mode 100644
index 000000000..a43e7ef10
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0037_visibility_in_traits.rs
@@ -0,0 +1,6 @@
+impl T for () {
+    fn foo() {}
+    pub fn bar() {}
+    pub(crate) type Baz = ();
+    pub(crate) const C: i32 = 92;
+}
diff --git a/crates/syntax/test_data/parser/err/0038_endless_inclusive_range.rast b/crates/syntax/test_data/parser/err/0038_endless_inclusive_range.rast
new file mode 100644
index 000000000..bed7ad6c3
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0038_endless_inclusive_range.rast
@@ -0,0 +1,29 @@
+[email protected]
+  [email protected]
+    [email protected] "fn"
+    [email protected] " "
+    [email protected]
+      [email protected] "main"
+    [email protected]
+      [email protected] "("
+      [email protected] ")"
+    [email protected] " "
+    [email protected]
+      [email protected] "{"
+      [email protected] "\n    "
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected] "0"
+          [email protected] "..="
+        [email protected] ";"
+      [email protected] "\n    "
+      [email protected]
+        [email protected]
+          [email protected] "..="
+        [email protected] ";"
+      [email protected] "\n"
+      [email protected] "}"
+  [email protected] "\n"
+error 16..20: An inclusive range must have an end expression
+error 26..29: An inclusive range must have an end expression
diff --git a/crates/syntax/test_data/parser/err/0038_endless_inclusive_range.rs b/crates/syntax/test_data/parser/err/0038_endless_inclusive_range.rs
new file mode 100644
index 000000000..0b4ed7a2b
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0038_endless_inclusive_range.rs
@@ -0,0 +1,4 @@
+fn main() {
+    0..=;
+    ..=;
+}
diff --git a/crates/syntax/test_data/parser/err/0039_lambda_recovery.rast b/crates/syntax/test_data/parser/err/0039_lambda_recovery.rast
new file mode 100644
index 000000000..a9c5b70fd
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0039_lambda_recovery.rast
@@ -0,0 +1,82 @@
+[email protected]
+  [email protected]
+    [email protected] "fn"
+    [email protected] " "
+    [email protected]
+      [email protected] "foo"
+    [email protected]
+      [email protected] "("
+      [email protected] ")"
+    [email protected] " "
+    [email protected]
+      [email protected] "->"
+      [email protected] " "
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected] "i32"
+    [email protected] " "
+    [email protected]
+      [email protected] "{"
+      [email protected] "\n    "
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected] "["
+                [email protected]
+                  [email protected] "1"
+                [email protected] ","
+                [email protected] " "
+                [email protected]
+                  [email protected] "2"
+                [email protected] ","
+                [email protected] " "
+                [email protected]
+                  [email protected] "3"
+                [email protected] "]"
+              [email protected] "."
+              [email protected]
+                [email protected] "iter"
+              [email protected]
+                [email protected] "("
+                [email protected] ")"
+            [email protected] "\n        "
+            [email protected] "."
+            [email protected]
+              [email protected] "map"
+            [email protected]
+              [email protected] "("
+              [email protected]
+                [email protected]
+                  [email protected] "|"
+                  [email protected]
+                    [email protected]
+                      [email protected]
+                        [email protected] "it"
+                  [email protected] "|"
+              [email protected] ")"
+          [email protected] "\n        "
+          [email protected] "."
+          [email protected]
+            [email protected] "max"
+          [email protected]
+            [email protected] "::"
+            [email protected] "<"
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected]
+                    [email protected]
+                      [email protected] "i32"
+            [email protected] ">"
+          [email protected]
+            [email protected] "("
+            [email protected] ")"
+        [email protected] ";"
+      [email protected] "\n"
+      [email protected] "}"
+  [email protected] "\n"
+error 56..56: expected expression
diff --git a/crates/syntax/test_data/parser/err/0039_lambda_recovery.rs b/crates/syntax/test_data/parser/err/0039_lambda_recovery.rs
new file mode 100644
index 000000000..a2f74bd87
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0039_lambda_recovery.rs
@@ -0,0 +1,5 @@
+fn foo() -> i32 {
+    [1, 2, 3].iter()
+        .map(|it|)
+        .max::<i32>();
+}
diff --git a/crates/syntax/test_data/parser/err/0040_illegal_crate_kw_location.rast b/crates/syntax/test_data/parser/err/0040_illegal_crate_kw_location.rast
new file mode 100644
index 000000000..284c8715b
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0040_illegal_crate_kw_location.rast
@@ -0,0 +1,91 @@
+[email protected]
+  [email protected]
+    [email protected] "use"
+    [email protected] " "
+    [email protected]
+      [email protected]
+        [email protected]
+          [email protected] "::"
+          [email protected] "crate"
+    [email protected] ";"
+  [email protected] "\n"
+  [email protected]
+    [email protected] "use"
+    [email protected] " "
+    [email protected]
+      [email protected]
+        [email protected] "{"
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected] "crate"
+        [email protected] ","
+        [email protected] " "
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected] "foo"
+          [email protected] "::"
+          [email protected]
+            [email protected] "{"
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected]
+                    [email protected]
+                      [email protected]
+                        [email protected] "crate"
+                    [email protected] "::"
+                    [email protected]
+                      [email protected]
+                        [email protected] "foo"
+                  [email protected] "::"
+                  [email protected]
+                    [email protected]
+                      [email protected] "bar"
+                [email protected] "::"
+                [email protected]
+                  [email protected]
+                    [email protected] "baz"
+            [email protected] "}"
+        [email protected] "}"
+    [email protected] ";"
+  [email protected] "\n"
+  [email protected]
+    [email protected] "use"
+    [email protected] " "
+    [email protected]
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected] "hello"
+        [email protected] "::"
+        [email protected]
+          [email protected] "crate"
+    [email protected] ";"
+  [email protected] "\n"
+  [email protected]
+    [email protected] "use"
+    [email protected] " "
+    [email protected]
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected] "hello"
+          [email protected] "::"
+          [email protected]
+            [email protected] "crate"
+        [email protected] "::"
+        [email protected]
+          [email protected]
+            [email protected] "there"
+    [email protected] ";"
+  [email protected] "\n"
+error 6..11: The `crate` keyword is only allowed as the first segment of a path
+error 31..36: The `crate` keyword is only allowed as the first segment of a path
+error 66..71: The `crate` keyword is only allowed as the first segment of a path
+error 84..89: The `crate` keyword is only allowed as the first segment of a path
diff --git a/crates/syntax/test_data/parser/err/0040_illegal_crate_kw_location.rs b/crates/syntax/test_data/parser/err/0040_illegal_crate_kw_location.rs
new file mode 100644
index 000000000..508def2c7
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0040_illegal_crate_kw_location.rs
@@ -0,0 +1,4 @@
+use ::crate;
+use {crate, foo::{crate::foo::bar::baz}};
+use hello::crate;
+use hello::crate::there;
diff --git a/crates/syntax/test_data/parser/err/0041_illegal_super_keyword_location.rast b/crates/syntax/test_data/parser/err/0041_illegal_super_keyword_location.rast
new file mode 100644
index 000000000..2049a9d72
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0041_illegal_super_keyword_location.rast
@@ -0,0 +1,70 @@
+[email protected]
+  [email protected]
+    [email protected] "use"
+    [email protected] " "
+    [email protected]
+      [email protected]
+        [email protected]
+          [email protected] "::"
+          [email protected] "super"
+    [email protected] ";"
+  [email protected] "\n"
+  [email protected]
+    [email protected] "use"
+    [email protected] " "
+    [email protected]
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected] "a"
+        [email protected] "::"
+        [email protected]
+          [email protected] "super"
+    [email protected] ";"
+  [email protected] "\n"
+  [email protected]
+    [email protected] "use"
+    [email protected] " "
+    [email protected]
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected] "super"
+          [email protected] "::"
+          [email protected]
+            [email protected]
+              [email protected] "a"
+        [email protected] "::"
+        [email protected]
+          [email protected] "super"
+    [email protected] ";"
+  [email protected] "\n"
+  [email protected]
+    [email protected] "use"
+    [email protected] " "
+    [email protected]
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected] "a"
+      [email protected] "::"
+      [email protected]
+        [email protected] "{"
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected] "super"
+            [email protected] "::"
+            [email protected]
+              [email protected]
+                [email protected] "b"
+        [email protected] "}"
+    [email protected] ";"
+  [email protected] "\n"
+error 6..11: The `super` keyword may only be preceded by other `super`s
+error 20..25: The `super` keyword may only be preceded by other `super`s
+error 41..46: The `super` keyword may only be preceded by other `super`s
+error 56..61: The `super` keyword may only be preceded by other `super`s
diff --git a/crates/syntax/test_data/parser/err/0041_illegal_super_keyword_location.rs b/crates/syntax/test_data/parser/err/0041_illegal_super_keyword_location.rs
new file mode 100644
index 000000000..bd4d58042
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0041_illegal_super_keyword_location.rs
@@ -0,0 +1,4 @@
+use ::super;
+use a::super;
+use super::a::super;
+use a::{super::b};
diff --git a/crates/syntax/test_data/parser/err/0042_illegal_self_keyword_location.rast b/crates/syntax/test_data/parser/err/0042_illegal_self_keyword_location.rast
new file mode 100644
index 000000000..deadf56b4
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0042_illegal_self_keyword_location.rast
@@ -0,0 +1,27 @@
+[email protected]
+  [email protected]
+    [email protected] "use"
+    [email protected] " "
+    [email protected]
+      [email protected]
+        [email protected]
+          [email protected] "::"
+          [email protected] "self"
+    [email protected] ";"
+  [email protected] "\n"
+  [email protected]
+    [email protected] "use"
+    [email protected] " "
+    [email protected]
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected] "a"
+        [email protected] "::"
+        [email protected]
+          [email protected] "self"
+    [email protected] ";"
+  [email protected] "\n"
+error 6..10: The `self` keyword is only allowed as the first segment of a path
+error 19..23: The `self` keyword is only allowed as the first segment of a path
diff --git a/crates/syntax/test_data/parser/err/0042_illegal_self_keyword_location.rs b/crates/syntax/test_data/parser/err/0042_illegal_self_keyword_location.rs
new file mode 100644
index 000000000..b9e1d7d8b
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0042_illegal_self_keyword_location.rs
@@ -0,0 +1,2 @@
+use ::self;
+use a::self;
diff --git a/crates/syntax/test_data/parser/err/0043_weird_blocks.rast b/crates/syntax/test_data/parser/err/0043_weird_blocks.rast
new file mode 100644
index 000000000..df29017e7
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0043_weird_blocks.rast
@@ -0,0 +1,71 @@
+[email protected]
+  [email protected]
+    [email protected] "fn"
+    [email protected] " "
+    [email protected]
+      [email protected] "main"
+    [email protected]
+      [email protected] "("
+      [email protected] ")"
+    [email protected] " "
+    [email protected]
+      [email protected] "{"
+      [email protected] "\n    "
+      [email protected]
+        [email protected]
+          [email protected] "{"
+          [email protected] " "
+          [email protected]
+            [email protected] "unsafe"
+          [email protected] " "
+          [email protected]
+            [email protected] "92"
+          [email protected] " "
+          [email protected] "}"
+      [email protected] "\n    "
+      [email protected]
+        [email protected]
+          [email protected] "{"
+          [email protected] " "
+          [email protected]
+            [email protected] "async"
+          [email protected] " "
+          [email protected]
+            [email protected] "92"
+          [email protected] " "
+          [email protected] "}"
+      [email protected] "\n    "
+      [email protected]
+        [email protected]
+          [email protected] "{"
+          [email protected] " "
+          [email protected]
+            [email protected]
+              [email protected] "try"
+          [email protected] " "
+          [email protected]
+            [email protected] "92"
+          [email protected] " "
+          [email protected] "}"
+      [email protected] "\n    "
+      [email protected]
+        [email protected] "{"
+        [email protected] " "
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected] "\'label"
+              [email protected] ":"
+        [email protected] " "
+        [email protected]
+          [email protected] "92"
+        [email protected] " "
+        [email protected] "}"
+      [email protected] "\n"
+      [email protected] "}"
+  [email protected] "\n"
+error 24..24: expected existential, fn, trait or impl
+error 41..41: expected existential, fn, trait or impl
+error 56..56: expected a block
+error 75..75: expected a loop
+error 75..75: expected SEMICOLON
diff --git a/crates/syntax/test_data/parser/err/0043_weird_blocks.rs b/crates/syntax/test_data/parser/err/0043_weird_blocks.rs
new file mode 100644
index 000000000..8fa324c1a
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0043_weird_blocks.rs
@@ -0,0 +1,6 @@
+fn main() {
+    { unsafe 92 }
+    { async 92 }
+    { try 92 }
+    { 'label: 92 }
+}
diff --git a/crates/syntax/test_data/parser/err/0044_unexpected_for_type.rast b/crates/syntax/test_data/parser/err/0044_unexpected_for_type.rast
new file mode 100644
index 000000000..71aa86494
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0044_unexpected_for_type.rast
@@ -0,0 +1,240 @@
+[email protected]
+  [email protected]
+    [email protected] "type"
+    [email protected] " "
+    [email protected]
+      [email protected] "ForRef"
+    [email protected] " "
+    [email protected] "="
+    [email protected] " "
+    [email protected]
+      [email protected] "for"
+      [email protected]
+        [email protected] "<"
+        [email protected]
+          [email protected] "\'a"
+        [email protected] ">"
+      [email protected] " "
+      [email protected]
+        [email protected] "&"
+        [email protected] "\'a"
+        [email protected] " "
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected] "u32"
+    [email protected] ";"
+  [email protected] "\n"
+  [email protected]
+    [email protected] "type"
+    [email protected] " "
+    [email protected]
+      [email protected] "ForTup"
+    [email protected] " "
+    [email protected] "="
+    [email protected] " "
+    [email protected]
+      [email protected] "for"
+      [email protected]
+        [email protected] "<"
+        [email protected]
+          [email protected] "\'a"
+        [email protected] ">"
+      [email protected] " "
+      [email protected]
+        [email protected] "("
+        [email protected]
+          [email protected] "&"
+          [email protected] "\'a"
+          [email protected] " "
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected] "u32"
+        [email protected] ","
+        [email protected] ")"
+    [email protected] ";"
+  [email protected] "\n"
+  [email protected]
+    [email protected] "type"
+    [email protected] " "
+    [email protected]
+      [email protected] "ForSlice"
+    [email protected] " "
+    [email protected] "="
+    [email protected] " "
+    [email protected]
+      [email protected] "for"
+      [email protected]
+        [email protected] "<"
+        [email protected]
+          [email protected] "\'a"
+        [email protected] ">"
+      [email protected] " "
+      [email protected]
+        [email protected] "["
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected] "u32"
+        [email protected] "]"
+    [email protected] ";"
+  [email protected] "\n"
+  [email protected]
+    [email protected] "type"
+    [email protected] " "
+    [email protected]
+      [email protected] "ForForFn"
+    [email protected] " "
+    [email protected] "="
+    [email protected] " "
+    [email protected]
+      [email protected] "for"
+      [email protected]
+        [email protected] "<"
+        [email protected]
+          [email protected] "\'a"
+        [email protected] ">"
+      [email protected] " "
+      [email protected]
+        [email protected] "for"
+        [email protected]
+          [email protected] "<"
+          [email protected]
+            [email protected] "\'b"
+          [email protected] ">"
+        [email protected] " "
+        [email protected]
+          [email protected] "fn"
+          [email protected]
+            [email protected] "("
+            [email protected]
+              [email protected]
+                [email protected] "&"
+                [email protected] "\'a"
+                [email protected] " "
+                [email protected]
+                  [email protected]
+                    [email protected]
+                      [email protected]
+                        [email protected] "i32"
+            [email protected] ","
+            [email protected] " "
+            [email protected]
+              [email protected]
+                [email protected] "&"
+                [email protected] "\'b"
+                [email protected] " "
+                [email protected]
+                  [email protected]
+                    [email protected]
+                      [email protected]
+                        [email protected] "i32"
+            [email protected] ")"
+    [email protected] ";"
+  [email protected] "\n"
+  [email protected]
+    [email protected] "fn"
+    [email protected] " "
+    [email protected]
+      [email protected] "for_for_for"
+    [email protected]
+      [email protected] "<"
+      [email protected]
+        [email protected]
+          [email protected] "T"
+      [email protected] ">"
+    [email protected]
+      [email protected] "("
+      [email protected] ")"
+    [email protected] "\n"
+    [email protected]
+      [email protected] "where"
+      [email protected] "\n    "
+      [email protected]
+        [email protected] "for"
+        [email protected]
+          [email protected] "<"
+          [email protected]
+            [email protected] "\'a"
+          [email protected] ">"
+        [email protected] " "
+        [email protected]
+          [email protected] "for"
+          [email protected]
+            [email protected] "<"
+            [email protected]
+              [email protected] "\'b"
+            [email protected] ">"
+          [email protected] " "
+          [email protected]
+            [email protected] "for"
+            [email protected]
+              [email protected] "<"
+              [email protected]
+                [email protected] "\'c"
+              [email protected] ">"
+            [email protected] " "
+            [email protected]
+              [email protected] "fn"
+              [email protected]
+                [email protected] "("
+                [email protected]
+                  [email protected]
+                    [email protected] "&"
+                    [email protected] "\'a"
+                    [email protected] " "
+                    [email protected]
+                      [email protected]
+                        [email protected]
+                          [email protected]
+                            [email protected] "T"
+                [email protected] ","
+                [email protected] " "
+                [email protected]
+                  [email protected]
+                    [email protected] "&"
+                    [email protected] "\'b"
+                    [email protected] " "
+                    [email protected]
+                      [email protected]
+                        [email protected]
+                          [email protected]
+                            [email protected] "T"
+                [email protected] ","
+                [email protected] " "
+                [email protected]
+                  [email protected]
+                    [email protected] "&"
+                    [email protected] "\'c"
+                    [email protected] " "
+                    [email protected]
+                      [email protected]
+                        [email protected]
+                          [email protected]
+                            [email protected] "T"
+                [email protected] ")"
+        [email protected] ":"
+        [email protected] " "
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected]
+                    [email protected] "Copy"
+      [email protected] ","
+    [email protected] "\n"
+    [email protected]
+      [email protected] "{"
+      [email protected] "\n"
+      [email protected] "}"
+  [email protected] "\n"
+error 21..21: expected a function pointer or path
+error 52..52: expected a function pointer or path
+error 88..88: expected a function pointer or path
+error 119..119: expected a function pointer or path
+error 195..195: expected a function pointer or path
diff --git a/crates/syntax/test_data/parser/err/0044_unexpected_for_type.rs b/crates/syntax/test_data/parser/err/0044_unexpected_for_type.rs
new file mode 100644
index 000000000..0e9f8ccb4
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0044_unexpected_for_type.rs
@@ -0,0 +1,9 @@
+type ForRef = for<'a> &'a u32;
+type ForTup = for<'a> (&'a u32,);
+type ForSlice = for<'a> [u32];
+type ForForFn = for<'a> for<'b> fn(&'a i32, &'b i32);
+fn for_for_for<T>()
+where
+    for<'a> for<'b> for<'c> fn(&'a T, &'b T, &'c T): Copy,
+{
+}
diff --git a/crates/syntax/test_data/parser/err/0045_item_modifiers.rast b/crates/syntax/test_data/parser/err/0045_item_modifiers.rast
new file mode 100644
index 000000000..a6e6552a9
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0045_item_modifiers.rast
@@ -0,0 +1,45 @@
+[email protected]
+  [email protected]
+    [email protected] "unsafe"
+  [email protected] " "
+  [email protected]
+    [email protected] "async"
+    [email protected] " "
+    [email protected] "fn"
+    [email protected] " "
+    [email protected]
+      [email protected] "foo"
+    [email protected]
+      [email protected] "("
+      [email protected] ")"
+    [email protected] " "
+    [email protected]
+      [email protected] "{"
+      [email protected] "}"
+  [email protected] "\n"
+  [email protected]
+    [email protected] "unsafe"
+    [email protected] " "
+    [email protected] "const"
+    [email protected] " "
+    [email protected]
+      [email protected] "fn"
+    [email protected] " "
+    [email protected]
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected] "bar"
+          [email protected]
+            [email protected] "("
+            [email protected] ")"
+  [email protected] " "
+  [email protected]
+    [email protected] "{"
+    [email protected] "}"
+  [email protected] "\n"
+error 6..6: expected existential, fn, trait or impl
+error 38..38: expected a name
+error 40..40: expected COLON
+error 46..46: expected SEMICOLON
+error 47..47: expected an item
diff --git a/crates/syntax/test_data/parser/err/0045_item_modifiers.rs b/crates/syntax/test_data/parser/err/0045_item_modifiers.rs
new file mode 100644
index 000000000..731e58013
--- /dev/null
+++ b/crates/syntax/test_data/parser/err/0045_item_modifiers.rs
@@ -0,0 +1,2 @@
+unsafe async fn foo() {}
+unsafe const fn bar() {}
diff --git a/crates/syntax/test_data/parser/fragments/expr/err/0000_truncated_add.rast b/crates/syntax/test_data/parser/fragments/expr/err/0000_truncated_add.rast
new file mode 100644
index 000000000..5df7507e2
--- /dev/null
+++ b/crates/syntax/test_data/parser/fragments/expr/err/0000_truncated_add.rast
@@ -0,0 +1 @@
+ERROR
diff --git a/crates/syntax/test_data/parser/fragments/expr/err/0000_truncated_add.rs b/crates/syntax/test_data/parser/fragments/expr/err/0000_truncated_add.rs
new file mode 100644
index 000000000..ca49acb07
--- /dev/null
+++ b/crates/syntax/test_data/parser/fragments/expr/err/0000_truncated_add.rs
@@ -0,0 +1 @@
+1 +
diff --git a/crates/syntax/test_data/parser/fragments/expr/ok/0000_add.rast b/crates/syntax/test_data/parser/fragments/expr/ok/0000_add.rast
new file mode 100644
index 000000000..fa78a02a6
--- /dev/null
+++ b/crates/syntax/test_data/parser/fragments/expr/ok/0000_add.rast
@@ -0,0 +1,8 @@
+[email protected]
+  [email protected]
+    [email protected] "1"
+  [email protected] " "
+  [email protected] "+"
+  [email protected] " "
+  [email protected]
+    [email protected] "2"
diff --git a/crates/syntax/test_data/parser/fragments/expr/ok/0000_add.rs b/crates/syntax/test_data/parser/fragments/expr/ok/0000_add.rs
new file mode 100644
index 000000000..e0ef58402
--- /dev/null
+++ b/crates/syntax/test_data/parser/fragments/expr/ok/0000_add.rs
@@ -0,0 +1 @@
+1 + 2
diff --git a/crates/syntax/test_data/parser/fragments/item/err/0000_extra_keyword.rast b/crates/syntax/test_data/parser/fragments/item/err/0000_extra_keyword.rast
new file mode 100644
index 000000000..5df7507e2
--- /dev/null
+++ b/crates/syntax/test_data/parser/fragments/item/err/0000_extra_keyword.rast
@@ -0,0 +1 @@
+ERROR
diff --git a/crates/syntax/test_data/parser/fragments/item/err/0000_extra_keyword.rs b/crates/syntax/test_data/parser/fragments/item/err/0000_extra_keyword.rs
new file mode 100644
index 000000000..dc32389bb
--- /dev/null
+++ b/crates/syntax/test_data/parser/fragments/item/err/0000_extra_keyword.rs
@@ -0,0 +1 @@
+fn fn foo() {}
diff --git a/crates/syntax/test_data/parser/fragments/item/ok/0000_fn.rast b/crates/syntax/test_data/parser/fragments/item/ok/0000_fn.rast
new file mode 100644
index 000000000..93c429e12
--- /dev/null
+++ b/crates/syntax/test_data/parser/fragments/item/ok/0000_fn.rast
@@ -0,0 +1,12 @@
+[email protected]
+  [email protected] "fn"
+  [email protected] " "
+  [email protected]
+    [email protected] "foo"
+  [email protected]
+    [email protected] "("
+    [email protected] ")"
+  [email protected] " "
+  [email protected]
+    [email protected] "{"
+    [email protected] "}"
diff --git a/crates/syntax/test_data/parser/fragments/item/ok/0000_fn.rs b/crates/syntax/test_data/parser/fragments/item/ok/0000_fn.rs
new file mode 100644
index 000000000..8f3b7ef11
--- /dev/null
+++ b/crates/syntax/test_data/parser/fragments/item/ok/0000_fn.rs
@@ -0,0 +1 @@
+fn foo() {}
diff --git a/crates/syntax/test_data/parser/fragments/path/err/0000_reserved_word.rast b/crates/syntax/test_data/parser/fragments/path/err/0000_reserved_word.rast
new file mode 100644
index 000000000..5df7507e2
--- /dev/null
+++ b/crates/syntax/test_data/parser/fragments/path/err/0000_reserved_word.rast
@@ -0,0 +1 @@
+ERROR
diff --git a/crates/syntax/test_data/parser/fragments/path/err/0000_reserved_word.rs b/crates/syntax/test_data/parser/fragments/path/err/0000_reserved_word.rs
new file mode 100644
index 000000000..2046de049
--- /dev/null
+++ b/crates/syntax/test_data/parser/fragments/path/err/0000_reserved_word.rs
@@ -0,0 +1 @@
+struct
diff --git a/crates/syntax/test_data/parser/fragments/path/err/0001_expression.rast b/crates/syntax/test_data/parser/fragments/path/err/0001_expression.rast
new file mode 100644
index 000000000..5df7507e2
--- /dev/null
+++ b/crates/syntax/test_data/parser/fragments/path/err/0001_expression.rast
@@ -0,0 +1 @@
+ERROR
diff --git a/crates/syntax/test_data/parser/fragments/path/err/0001_expression.rs b/crates/syntax/test_data/parser/fragments/path/err/0001_expression.rs
new file mode 100644
index 000000000..745e8d376
--- /dev/null
+++ b/crates/syntax/test_data/parser/fragments/path/err/0001_expression.rs
@@ -0,0 +1 @@
+a + b
diff --git a/crates/syntax/test_data/parser/fragments/path/ok/0000_single_ident.rast b/crates/syntax/test_data/parser/fragments/path/ok/0000_single_ident.rast
new file mode 100644
index 000000000..0c5d4360f
--- /dev/null
+++ b/crates/syntax/test_data/parser/fragments/path/ok/0000_single_ident.rast
@@ -0,0 +1,4 @@
+[email protected]
+  [email protected]
+    [email protected]
+      [email protected] "foo"
diff --git a/crates/syntax/test_data/parser/fragments/path/ok/0000_single_ident.rs b/crates/syntax/test_data/parser/fragments/path/ok/0000_single_ident.rs
new file mode 100644
index 000000000..257cc5642
--- /dev/null
+++ b/crates/syntax/test_data/parser/fragments/path/ok/0000_single_ident.rs
@@ -0,0 +1 @@
+foo
diff --git a/crates/syntax/test_data/parser/fragments/path/ok/0001_multipart.rast b/crates/syntax/test_data/parser/fragments/path/ok/0001_multipart.rast
new file mode 100644
index 000000000..4a2b45e6a
--- /dev/null
+++ b/crates/syntax/test_data/parser/fragments/path/ok/0001_multipart.rast
@@ -0,0 +1,14 @@
+[email protected]
+  [email protected]
+    [email protected]
+      [email protected]
+        [email protected]
+          [email protected] "foo"
+    [email protected] "::"
+    [email protected]
+      [email protected]
+        [email protected] "bar"
+  [email protected] "::"
+  [email protected]
+    [email protected]
+      [email protected] "baz"
diff --git a/crates/syntax/test_data/parser/fragments/path/ok/0001_multipart.rs b/crates/syntax/test_data/parser/fragments/path/ok/0001_multipart.rs
new file mode 100644
index 000000000..81e0b21cd
--- /dev/null
+++ b/crates/syntax/test_data/parser/fragments/path/ok/0001_multipart.rs
@@ -0,0 +1 @@
+foo::bar::baz
diff --git a/crates/syntax/test_data/parser/fragments/pattern/err/0000_reserved_word.rast b/crates/syntax/test_data/parser/fragments/pattern/err/0000_reserved_word.rast
new file mode 100644
index 000000000..5df7507e2
--- /dev/null
+++ b/crates/syntax/test_data/parser/fragments/pattern/err/0000_reserved_word.rast
@@ -0,0 +1 @@
+ERROR
diff --git a/crates/syntax/test_data/parser/fragments/pattern/err/0000_reserved_word.rs b/crates/syntax/test_data/parser/fragments/pattern/err/0000_reserved_word.rs
new file mode 100644
index 000000000..ae26fc455
--- /dev/null
+++ b/crates/syntax/test_data/parser/fragments/pattern/err/0000_reserved_word.rs
@@ -0,0 +1 @@
+fn
diff --git a/crates/syntax/test_data/parser/fragments/pattern/err/0001_missing_paren.rast b/crates/syntax/test_data/parser/fragments/pattern/err/0001_missing_paren.rast
new file mode 100644
index 000000000..5df7507e2
--- /dev/null
+++ b/crates/syntax/test_data/parser/fragments/pattern/err/0001_missing_paren.rast
@@ -0,0 +1 @@
+ERROR
diff --git a/crates/syntax/test_data/parser/fragments/pattern/err/0001_missing_paren.rs b/crates/syntax/test_data/parser/fragments/pattern/err/0001_missing_paren.rs
new file mode 100644
index 000000000..61a391d08
--- /dev/null
+++ b/crates/syntax/test_data/parser/fragments/pattern/err/0001_missing_paren.rs
@@ -0,0 +1 @@
+Some(x
diff --git a/crates/syntax/test_data/parser/fragments/pattern/ok/0000_enum.rast b/crates/syntax/test_data/parser/fragments/pattern/ok/0000_enum.rast
new file mode 100644
index 000000000..dcf102339
--- /dev/null
+++ b/crates/syntax/test_data/parser/fragments/pattern/ok/0000_enum.rast
@@ -0,0 +1,10 @@
+[email protected]
+  [email protected]
+    [email protected]
+      [email protected]
+        [email protected] "Some"
+  [email protected] "("
+  [email protected]
+    [email protected]
+      [email protected] "x"
+  [email protected] ")"
diff --git a/crates/syntax/test_data/parser/fragments/pattern/ok/0000_enum.rs b/crates/syntax/test_data/parser/fragments/pattern/ok/0000_enum.rs
new file mode 100644
index 000000000..87114dd78
--- /dev/null
+++ b/crates/syntax/test_data/parser/fragments/pattern/ok/0000_enum.rs
@@ -0,0 +1 @@
+Some(x)
diff --git a/crates/syntax/test_data/parser/fragments/type/err/0000_missing_close.rast b/crates/syntax/test_data/parser/fragments/type/err/0000_missing_close.rast
new file mode 100644
index 000000000..5df7507e2
--- /dev/null
+++ b/crates/syntax/test_data/parser/fragments/type/err/0000_missing_close.rast
@@ -0,0 +1 @@
+ERROR
diff --git a/crates/syntax/test_data/parser/fragments/type/err/0000_missing_close.rs b/crates/syntax/test_data/parser/fragments/type/err/0000_missing_close.rs
new file mode 100644
index 000000000..caa4d7c09
--- /dev/null
+++ b/crates/syntax/test_data/parser/fragments/type/err/0000_missing_close.rs
@@ -0,0 +1 @@
+Result<Foo, Bar
diff --git a/crates/syntax/test_data/parser/fragments/type/ok/0000_result.rast b/crates/syntax/test_data/parser/fragments/type/ok/0000_result.rast
new file mode 100644
index 000000000..38c15b581
--- /dev/null
+++ b/crates/syntax/test_data/parser/fragments/type/ok/0000_result.rast
@@ -0,0 +1,22 @@
+[email protected]
+  [email protected]
+    [email protected]
+      [email protected]
+        [email protected] "Result"
+      [email protected]
+        [email protected] "<"
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected] "Foo"
+        [email protected] ","
+        [email protected] " "
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected] "Bar"
+        [email protected] ">"
diff --git a/crates/syntax/test_data/parser/fragments/type/ok/0000_result.rs b/crates/syntax/test_data/parser/fragments/type/ok/0000_result.rs
new file mode 100644
index 000000000..b50b3bb3b
--- /dev/null
+++ b/crates/syntax/test_data/parser/fragments/type/ok/0000_result.rs
@@ -0,0 +1 @@
+Result<Foo, Bar>
diff --git a/crates/syntax/test_data/parser/fuzz-failures/0000.rs b/crates/syntax/test_data/parser/fuzz-failures/0000.rs
new file mode 100644
index 000000000..f1d0dc343
--- /dev/null
+++ b/crates/syntax/test_data/parser/fuzz-failures/0000.rs
@@ -0,0 +1,199 @@
+//! An experimental implementation of [Rust RFC#2256 lrs);
+        let root = SyntaxNode::new_owned(root);
+        validate_block_structure(root.borrowed());
+        File { root }
+    }
+    pub fn parse(text: &str) -> File {
+        let tokens = tokenize(&text);
+        let (green, errors) = parser_impl::parse_with::<syntax_node::GreenBuilder>(
+            text, &tokens, grammar::root,
+        );
+        File::new(green, errors)
+    }
+    pub fn reparse(&self, edit: &AtomTextEdit) -> File {
+        self.incremental_reparse(edit).unwrap_or_else(|| self.full_reparse(edit))
+    }
+    pub fn incremental_reparse(&self, edit: &AtomTextEdit) -> Option<File> {
+        let (node, reparser) = find_reparsable_node(self.syntax(), edit.delete)?;
+        let text = replace_range(
+            node.text().to_string(),
+            edit.delete - node.range().start(),
+            &edit.insert,
+        );
+        let tokens = tokenize(&text);
+        if !is_balanced(&tokens) {
+            return None;
+        }
+        let (green, new_errors) = parser_impl::parse_with::<syntax_node::GreenBuilder>(
+            &te2t, &tokens, reparser,
+        );
+        let green_root = node.replace_with(green);
+        let errors = merge_errors(self.errors(), new_errors, node, edit);
+        Some(File::new(green_root, errors))
+    }
+    fn full_reparse(&self, edit: &AtomTextEdit) -> File {
+        let text = replace_range(self.syntax().text().to_string(), edit.delete, &edit.insert);
+        File::parse(&text)
+    }
+    pub fn ast(&self) -> ast::Root {
+        ast::Root::cast(self.syntax()).unwrap()
+    }
+    pub fn syntax(&self) -> SyntaxNodeRef {
+        self.root.brroowed()
+    }
+    mp_tree(root),
+                    );
+                    assert!(
+                        node.next_sibling().is_none() && pair.prev_sibling().is_none(),
+                        "\nfloating curlys at {:?}\nfile:\n{}\nerror:\n{}\n",
+                        node,
+                        root.text(),
+                        node.text(),
+                    );
+                }
+            }
+            _ => (),
+        }
+    }
+}
+
+#[derive(Debug, Clone)]
+pub struct AtomTextEdit {
+    pub delete: TextRange,
+    pub insert: String,
+}
+
+impl AtomTextEdit {
+    pub fn replace(range: TextRange, replace_with: String) -> AtomTextEdit {
+        AtomTextEdit { delete: range, insert: replace_with }
+    }
+
+    pub fn delete(range: TextRange) -> AtomTextEdit {
+        AtomTextEdit::replace(range, String::new())
+    }
+
+    pub fn insert(offset: TextUnit, text: String) -> AtomTextEdit {
+        AtomTextEdit::replace(TextRange::offset_len(offset, 0.into()), text)
+    }
+}
+
+fn find_reparsable_node(node: SyntaxNodeRef, range: TextRange) -> Option<(SyntaxNodeRef, fn(&mut Parser))> {
+    let node = algo::find_covering_node(node, range);
+    return algo::ancestors(node)
+        .filter_map(|node| reparser(node).map(|r| (node, r)))
+        .next();
+
+    fn reparser(node: SyntaxNodeRef) -> Option<fn(&mut Parser)> {
+        let res = match node.kind() {
+            BLOCK => grammar::block,
+            RECORD_FIELD_LIST => grammar::record_field_list,
+            _ => return None,
+        };
+        Some(res)
+    }
+}
+
+pub /*(meh)*/ fn replace_range(mut text: String, range: TextRange, replace_with: &str) -> String {
+    let start = u32::from(range.start()) as usize;
+    let end = u32::from(range.end()) as usize;
+    text.replace_range(start..end, replace_with);
+    text
+}
+
+fn is_balanced(tokens: &[Token]) -> bool {
+    if tokens.len() == 0
+       || tokens.first().unwrap().kind != L_CURLY
+       || tokens.last().unwrap().kind != R_CURLY {
+        return false
+    }
+    let mut balance = 0usize;
+    for t in tokens.iter() {
+        match t.kind {
+            L_CURLYt {
+    pub delete: TextRange,
+    pub insert: String,
+}
+
+impl AtomTextEdit {
+    pub fn replace(range: TextRange, replace_with: String) -> AtomTextEdit {
+        AtomTextEdit { delete: range, insert: replace_with }
+    }
+
+    pub fn delete(range: TextRange) -> AtomTextEdit {
+        AtomTextEdit::replace(range, String::new())
+    }
+
+    pub fn insert(offset: TextUnit, text: String) -> AtomTextEdit {
+        AtomTextEdit::replace(TextRange::offset_len(offset, 0.into()), text)
+    }
+}
+
+fn find_reparsable_node(node: SyntaxNodeRef, range: TextRange) -> Option<(SyntaxNodeRef, fn(&mut Parser))> {
+    let node = algo::find_covering_node(node, range);
+    return algo::ancestors(node)
+        .filter_map(|node| reparser(node).map(|r| (node, r)))
+        .next();
+
+    fn reparser(node: SyntaxNodeRef) -> Option<fn(&mut Parser)> {
+        let res = match node.kind() {
+     ;
+    let end = u32::from(range.end()) as usize;
+    text.replaT => grammar::record_field_list,
+            _ => return None,
+        };
+        Some(res)
+    }
+}
+
+pub /*(meh)*/ fn replace_range(mut text: String, range: TextRange, replace_with: &str) -> String {
+    let start = u32::from(range.start()) as usize;
+    let end = u32::from(range.end()) as usize;
+    text.replace_range(start..end, replace_with);
+    text
+}
+
+fn is_balanced(tokens: &[Token]) -> bool {
+    if tokens.len() == 0
+       || tokens.first().unwrap().kind != L_CURLY
+       || tokens.last().unwrap().kind != R_CURLY {
+        return false
+    }
+    let mut balance = 0usize;
+    for t in tokens.iter() {
+        match t.kind {
+            L_CURLY => balance += 1,
+            R_CURLY => balance = match balance.checked_sub(1) {
+                Some(b) => b,
+                None => return false,
+            },
+            _ => (),
+        }
+    }
+    balance == 0
+}
+
+fn merge_errors(
+    old_errors: Vec<SyntaxError>,
+    new_errors: Vec<SyntaxError>,
+    old_node: SyntaxNodeRef,
+    edit: &AtomTextEdit,
+) -> Vec<SyntaxError> {
+    let mut res = Vec::new();
+    for e in old_errors {
+        if e.offset < old_node.range().start() {
+            res.push(e)
+        } else if e.offset > old_node.range().end() {
+            res.push(SyntaxError {
+                msg: e.msg,
+                offset: e.offset + TextUnit::of_str(&edit.insert) - edit.delete.len(),
+            })
+        }
+    }
+    for e in new_errors {
+        res.push(SyntaxError {
+            msg: e.msg,
+            offset: e.offset + old_node.range().start(),
+        })
+    }
+    res
+}
diff --git a/crates/syntax/test_data/parser/fuzz-failures/0001.rs b/crates/syntax/test_data/parser/fuzz-failures/0001.rs
new file mode 100644
index 000000000..f1148058e
--- /dev/null
+++ b/crates/syntax/test_data/parser/fuzz-failures/0001.rs
@@ -0,0 +1,106 @@
+use syntax::{
+    File, TextRange, SyntaxNodeRef, TextUnit,
+    SyntaxKind::*,
+    algo::{find_leaf_at_offset, LeafAtOffset, find_covering_node, ancestors, Direction, siblings},
+};
+
+pub fn extend_selection(file: &File, range: TextRange) -> Option<TextRange> {
+    let syntax = file.syntax();
+    extend(syntax.borrowed(), range)
+}
+
+pub(crate) fn extend(root: SyntaxNodeRef, range: TextRange) -> Option<TextRange> {
+    if range.is_empty() {
+        let offset = range.start();
+        let mut leaves = find_leaf_at_offset(root, offset);
+        if leaves.clone().all(|it| it.kind() == WHITESPACE) {
+            return Some(extend_ws(root, leaves.next()?, offset));
+        }
+        let leaf = match leaves {
+            LeafAtOffset::None => return None,
+            LeafAtOffset::Single(l) => l,
+            LeafAtOffset::Between(l, r) => pick_best(l, r),
+        };
+        return Some(leaf.range());
+    };
+    let node = find_covering_node(root, range);
+    if node.kind() == COMMENT && range == node.range() {
+        if let Some(range) = extend_comments(node) {
+            return Some(range);
+        }
+    }
+
+    match ancestors(node).skip_while(|n| n.range() == range).next() {
+        None => None,
+        Some(parent) => Some(parent.range()),
+    }
+}
+
+fn extend_ws(root: SyntaxNodeRef, ws: SyntaxNodeRef, offset: TextUnit) -> TextRange {
+    let ws_text = ws.leaf_text().unwrap();
+    let suffix = TextRange::from_to(offset, ws.range().end()) - ws.range().start();
+    let prefix = TextRange::from_to(ws.range().start(), offset) - ws.range().start();
+    let ws_suffix = &ws_text.as_str()[suffix];
+    let ws_prefix = &ws_text.as_str()[prefix];
+    if ws_text.contains("\n") && !ws_suffix.contains("\n") {
+        if let Some(node) = ws.next_sibling() {
+            let start = match ws_prefix.rfind('\n') {
+                Some(idx) => ws.range().start() + TextUnit::from((idx + 1) as u32),
+                None => node.range().start()
+            };
+            let end = if root.text().char_at(node.range().end()) == Some('\n') {
+                node.range().end() + TextUnit::of_char('\n')
+            } else {
+                node.range().end()
+            };
+            return TextRange::from_to(start, end);
+        }
+    }
+    ws.range()
+}
+
+fn pick_best<'a>(l: SyntaxNodeRef<'a>, r: Syntd[axNodeRef<'a>) -> SyntaxNodeRef<'a> {
+    return if priority(r) > priority(l) { r } else { l };
+    fn priority(n: SyntaxNodeRef) -> usize {
+        match n.kind() {
+            WHITESPACE => 0,
+            IDENT | SELF_KW | SUPER_KW | CRATE_KW => 2,
+            _ => 1,
+        }
+    }
+}
+
+fn extend_comments(node: SyntaxNodeRef) -> Option<TextRange> {
+    let left = adj_com[ments(node, Direction::Backward);
+    let right = adj_comments(node, Direction::Forward);
+    if left != right {
+        Some(TextRange::from_to(
+            left.range().start(),
+            right.range().end(),
+        ))
+    } else {
+        None
+    }
+}
+
+fn adj_comments(node: SyntaxNodeRef, dir: Direction) -> SyntaxNodeRef {
+    let mut res = node;
+    for node in siblings(node, dir) {
+        match node.kind() {
+            COMMENT => res = node,
+            WHITESPACE if !node.leaf_text().unwrap().as_str().contains("\n\n") => (),
+            _ => break
+        }
+    }
+    res
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use test_utils::extract_offset;
+
+    fn do_check(before: &str, afters: &[&str]) {
+        let (cursor, before) = extract_offset(before);
+        let file = File::parse(&before);
+        let mut range = TextRange::of
diff --git a/crates/syntax/test_data/parser/fuzz-failures/0002.rs b/crates/syntax/test_data/parser/fuzz-failures/0002.rs
new file mode 100644
index 000000000..f35dc7289
--- /dev/null
+++ b/crates/syntax/test_data/parser/fuzz-failures/0002.rs
@@ -0,0 +1 @@
+!('\
\ No newline at end of file
diff --git a/crates/syntax/test_data/parser/fuzz-failures/0003.rs b/crates/syntax/test_data/parser/fuzz-failures/0003.rs
new file mode 100644
index 000000000..0f59c4722
--- /dev/null
+++ b/crates/syntax/test_data/parser/fuzz-failures/0003.rs
@@ -0,0 +1 @@
+if'\xɿ
\ No newline at end of file
diff --git a/crates/syntax/test_data/parser/fuzz-failures/0004.rs b/crates/syntax/test_data/parser/fuzz-failures/0004.rs
new file mode 100644
index 000000000..003290f52
--- /dev/null
+++ b/crates/syntax/test_data/parser/fuzz-failures/0004.rs
@@ -0,0 +1 @@
+b"\xʿ
\ No newline at end of file
diff --git a/crates/syntax/test_data/parser/inline/err/0001_array_type_missing_semi.rast b/crates/syntax/test_data/parser/inline/err/0001_array_type_missing_semi.rast
new file mode 100644
index 000000000..0b9bbec07
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/err/0001_array_type_missing_semi.rast
@@ -0,0 +1,27 @@
+[email protected]
+  [email protected]
+    [email protected] "type"
+    [email protected] " "
+    [email protected]
+      [email protected] "T"
+    [email protected] " "
+    [email protected] "="
+    [email protected] " "
+    [email protected]
+      [email protected] "["
+      [email protected]
+        [email protected] "("
+        [email protected] ")"
+  [email protected] " "
+  [email protected]
+    [email protected] "92"
+  [email protected]
+    [email protected] "]"
+  [email protected]
+    [email protected] ";"
+  [email protected] "\n"
+error 12..12: expected `;` or `]`
+error 12..12: expected SEMICOLON
+error 13..13: expected an item
+error 15..15: expected an item
+error 16..16: expected an item
diff --git a/crates/syntax/test_data/parser/inline/err/0001_array_type_missing_semi.rs b/crates/syntax/test_data/parser/inline/err/0001_array_type_missing_semi.rs
new file mode 100644
index 000000000..a94851443
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/err/0001_array_type_missing_semi.rs
@@ -0,0 +1 @@
+type T = [() 92];
diff --git a/crates/syntax/test_data/parser/inline/err/0002_misplaced_label_err.rast b/crates/syntax/test_data/parser/inline/err/0002_misplaced_label_err.rast
new file mode 100644
index 000000000..a4271fc87
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/err/0002_misplaced_label_err.rast
@@ -0,0 +1,28 @@
+[email protected]
+  [email protected]
+    [email protected] "fn"
+    [email protected] " "
+    [email protected]
+      [email protected] "main"
+    [email protected]
+      [email protected] "("
+      [email protected] ")"
+    [email protected] " "
+    [email protected]
+      [email protected] "{"
+      [email protected] "\n    "
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected] "\'loop"
+            [email protected] ":"
+      [email protected] " "
+      [email protected]
+        [email protected] "impl"
+      [email protected] "\n"
+      [email protected] "}"
+  [email protected] "\n"
+error 22..22: expected a loop
+error 22..22: expected SEMICOLON
+error 27..27: expected type
+error 27..27: expected `{`
diff --git a/crates/syntax/test_data/parser/inline/err/0002_misplaced_label_err.rs b/crates/syntax/test_data/parser/inline/err/0002_misplaced_label_err.rs
new file mode 100644
index 000000000..a2164c510
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/err/0002_misplaced_label_err.rs
@@ -0,0 +1,3 @@
+fn main() {
+    'loop: impl
+}
diff --git a/crates/syntax/test_data/parser/inline/err/0003_pointer_type_no_mutability.rast b/crates/syntax/test_data/parser/inline/err/0003_pointer_type_no_mutability.rast
new file mode 100644
index 000000000..0d8bf6dd6
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/err/0003_pointer_type_no_mutability.rast
@@ -0,0 +1,17 @@
+[email protected]
+  [email protected]
+    [email protected] "type"
+    [email protected] " "
+    [email protected]
+      [email protected] "T"
+    [email protected] " "
+    [email protected] "="
+    [email protected] " "
+    [email protected]
+      [email protected] "*"
+      [email protected]
+        [email protected] "("
+        [email protected] ")"
+    [email protected] ";"
+  [email protected] "\n"
+error 10..10: expected mut or const in raw pointer type (use `*mut T` or `*const T` as appropriate)
diff --git a/crates/syntax/test_data/parser/inline/err/0003_pointer_type_no_mutability.rs b/crates/syntax/test_data/parser/inline/err/0003_pointer_type_no_mutability.rs
new file mode 100644
index 000000000..fae705131
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/err/0003_pointer_type_no_mutability.rs
@@ -0,0 +1 @@
+type T = *();
diff --git a/crates/syntax/test_data/parser/inline/err/0004_impl_type.rast b/crates/syntax/test_data/parser/inline/err/0004_impl_type.rast
new file mode 100644
index 000000000..29d6b3974
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/err/0004_impl_type.rast
@@ -0,0 +1,79 @@
+[email protected]
+  [email protected]
+    [email protected] "impl"
+    [email protected] " "
+    [email protected]
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected] "Type"
+    [email protected] " "
+    [email protected]
+      [email protected] "{"
+      [email protected] "}"
+  [email protected] "\n"
+  [email protected]
+    [email protected] "impl"
+    [email protected] " "
+    [email protected]
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected] "Trait1"
+    [email protected] " "
+    [email protected] "for"
+    [email protected] " "
+    [email protected]
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected] "T"
+    [email protected] " "
+    [email protected]
+      [email protected] "{"
+      [email protected] "}"
+  [email protected] "\n"
+  [email protected]
+    [email protected] "impl"
+  [email protected] " "
+  [email protected]
+    [email protected] "impl"
+    [email protected] " "
+    [email protected]
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected] "NotType"
+    [email protected] " "
+    [email protected]
+      [email protected] "{"
+      [email protected] "}"
+  [email protected] "\n"
+  [email protected]
+    [email protected] "impl"
+    [email protected] " "
+    [email protected]
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected] "Trait2"
+    [email protected] " "
+    [email protected] "for"
+  [email protected] " "
+  [email protected]
+    [email protected] "impl"
+    [email protected] " "
+    [email protected]
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected] "NotType"
+    [email protected] " "
+    [email protected]
+      [email protected] "{"
+      [email protected] "}"
+  [email protected] "\n"
+error 38..38: expected trait or type
+error 38..38: expected `{`
+error 70..70: expected trait or type
+error 70..70: expected `{`
diff --git a/crates/syntax/test_data/parser/inline/err/0004_impl_type.rs b/crates/syntax/test_data/parser/inline/err/0004_impl_type.rs
new file mode 100644
index 000000000..b8c7b65e3
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/err/0004_impl_type.rs
@@ -0,0 +1,4 @@
+impl Type {}
+impl Trait1 for T {}
+impl impl NotType {}
+impl Trait2 for impl NotType {}
diff --git a/crates/syntax/test_data/parser/inline/err/0005_fn_pointer_type_missing_fn.rast b/crates/syntax/test_data/parser/inline/err/0005_fn_pointer_type_missing_fn.rast
new file mode 100644
index 000000000..776022fd9
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/err/0005_fn_pointer_type_missing_fn.rast
@@ -0,0 +1,23 @@
+[email protected]
+  [email protected]
+    [email protected] "type"
+    [email protected] " "
+    [email protected]
+      [email protected] "F"
+    [email protected] " "
+    [email protected] "="
+    [email protected] " "
+    [email protected] "unsafe"
+  [email protected] " "
+  [email protected]
+    [email protected] "("
+  [email protected]
+    [email protected] ")"
+  [email protected]
+    [email protected] ";"
+  [email protected] "\n"
+error 15..15: expected `fn`
+error 15..15: expected SEMICOLON
+error 16..16: expected an item
+error 17..17: expected an item
+error 18..18: expected an item
diff --git a/crates/syntax/test_data/parser/inline/err/0005_fn_pointer_type_missing_fn.rs b/crates/syntax/test_data/parser/inline/err/0005_fn_pointer_type_missing_fn.rs
new file mode 100644
index 000000000..f014914ff
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/err/0005_fn_pointer_type_missing_fn.rs
@@ -0,0 +1 @@
+type F = unsafe ();
diff --git a/crates/syntax/test_data/parser/inline/err/0006_unsafe_block_in_mod.rast b/crates/syntax/test_data/parser/inline/err/0006_unsafe_block_in_mod.rast
new file mode 100644
index 000000000..cc0f8bcaf
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/err/0006_unsafe_block_in_mod.rast
@@ -0,0 +1,35 @@
+[email protected]
+  [email protected]
+    [email protected] "fn"
+    [email protected] " "
+    [email protected]
+      [email protected] "foo"
+    [email protected]
+      [email protected] "("
+      [email protected] ")"
+    [email protected]
+      [email protected] "{"
+      [email protected] "}"
+  [email protected] " "
+  [email protected]
+    [email protected] "unsafe"
+  [email protected] " "
+  [email protected]
+    [email protected] "{"
+    [email protected] " "
+    [email protected] "}"
+  [email protected] " "
+  [email protected]
+    [email protected] "fn"
+    [email protected] " "
+    [email protected]
+      [email protected] "bar"
+    [email protected]
+      [email protected] "("
+      [email protected] ")"
+    [email protected]
+      [email protected] "{"
+      [email protected] "}"
+  [email protected] "\n"
+error 11..11: expected an item
+error 18..18: expected an item
diff --git a/crates/syntax/test_data/parser/inline/err/0006_unsafe_block_in_mod.rs b/crates/syntax/test_data/parser/inline/err/0006_unsafe_block_in_mod.rs
new file mode 100644
index 000000000..26141e904
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/err/0006_unsafe_block_in_mod.rs
@@ -0,0 +1 @@
+fn foo(){} unsafe { } fn bar(){}
diff --git a/crates/syntax/test_data/parser/inline/err/0007_async_without_semicolon.rast b/crates/syntax/test_data/parser/inline/err/0007_async_without_semicolon.rast
new file mode 100644
index 000000000..2c9570678
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/err/0007_async_without_semicolon.rast
@@ -0,0 +1,31 @@
+[email protected]
+  [email protected]
+    [email protected] "fn"
+    [email protected] " "
+    [email protected]
+      [email protected] "foo"
+    [email protected]
+      [email protected] "("
+      [email protected] ")"
+    [email protected] " "
+    [email protected]
+      [email protected] "{"
+      [email protected] " "
+      [email protected]
+        [email protected] "let"
+        [email protected] " "
+        [email protected]
+          [email protected] "_"
+        [email protected] " "
+        [email protected] "="
+        [email protected] " "
+        [email protected]
+          [email protected] "async"
+          [email protected] " "
+          [email protected]
+            [email protected] "{"
+            [email protected] "}"
+      [email protected] " "
+      [email protected] "}"
+  [email protected] "\n"
+error 27..27: expected SEMICOLON
diff --git a/crates/syntax/test_data/parser/inline/err/0007_async_without_semicolon.rs b/crates/syntax/test_data/parser/inline/err/0007_async_without_semicolon.rs
new file mode 100644
index 000000000..9a423248c
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/err/0007_async_without_semicolon.rs
@@ -0,0 +1 @@
+fn foo() { let _ = async {} }
diff --git a/crates/syntax/test_data/parser/inline/err/0008_pub_expr.rast b/crates/syntax/test_data/parser/inline/err/0008_pub_expr.rast
new file mode 100644
index 000000000..63a10127d
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/err/0008_pub_expr.rast
@@ -0,0 +1,25 @@
+[email protected]
+  [email protected]
+    [email protected] "fn"
+    [email protected] " "
+    [email protected]
+      [email protected] "foo"
+    [email protected]
+      [email protected] "("
+      [email protected] ")"
+    [email protected] " "
+    [email protected]
+      [email protected] "{"
+      [email protected] " "
+      [email protected]
+        [email protected]
+          [email protected] "pub"
+      [email protected] " "
+      [email protected]
+        [email protected]
+          [email protected] "92"
+        [email protected] ";"
+      [email protected] " "
+      [email protected] "}"
+  [email protected] "\n"
+error 14..14: expected an item
diff --git a/crates/syntax/test_data/parser/inline/err/0008_pub_expr.rs b/crates/syntax/test_data/parser/inline/err/0008_pub_expr.rs
new file mode 100644
index 000000000..2976f6862
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/err/0008_pub_expr.rs
@@ -0,0 +1 @@
+fn foo() { pub 92; }
diff --git a/crates/syntax/test_data/parser/inline/err/0009_attr_on_expr_not_allowed.rast b/crates/syntax/test_data/parser/inline/err/0009_attr_on_expr_not_allowed.rast
new file mode 100644
index 000000000..8fd8d5e59
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/err/0009_attr_on_expr_not_allowed.rast
@@ -0,0 +1,58 @@
+[email protected]
+  [email protected]
+    [email protected] "fn"
+    [email protected] " "
+    [email protected]
+      [email protected] "foo"
+    [email protected]
+      [email protected] "("
+      [email protected] ")"
+    [email protected] " "
+    [email protected]
+      [email protected] "{"
+      [email protected] "\n   "
+      [email protected]
+        [email protected]
+          [email protected] "#"
+          [email protected] "["
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected] "A"
+          [email protected] "]"
+        [email protected] " "
+        [email protected]
+          [email protected]
+            [email protected] "1"
+          [email protected] " "
+          [email protected] "+"
+          [email protected] " "
+          [email protected]
+            [email protected] "2"
+        [email protected] ";"
+      [email protected] "\n   "
+      [email protected]
+        [email protected]
+          [email protected] "#"
+          [email protected] "["
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected] "B"
+          [email protected] "]"
+        [email protected] " "
+        [email protected]
+          [email protected] "if"
+          [email protected] " "
+          [email protected]
+            [email protected]
+              [email protected] "true"
+          [email protected] " "
+          [email protected]
+            [email protected] "{"
+            [email protected] "}"
+        [email protected] ";"
+      [email protected] "\n"
+      [email protected] "}"
+  [email protected] "\n"
+error 24..24: attributes are not allowed on BIN_EXPR
diff --git a/crates/syntax/test_data/parser/inline/err/0009_attr_on_expr_not_allowed.rs b/crates/syntax/test_data/parser/inline/err/0009_attr_on_expr_not_allowed.rs
new file mode 100644
index 000000000..d725a07ce
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/err/0009_attr_on_expr_not_allowed.rs
@@ -0,0 +1,4 @@
+fn foo() {
+   #[A] 1 + 2;
+   #[B] if true {};
+}
diff --git a/crates/syntax/test_data/parser/inline/err/0010_bad_tuple_index_expr.rast b/crates/syntax/test_data/parser/inline/err/0010_bad_tuple_index_expr.rast
new file mode 100644
index 000000000..fa14e1e6d
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/err/0010_bad_tuple_index_expr.rast
@@ -0,0 +1,52 @@
+[email protected]
+  [email protected]
+    [email protected] "fn"
+    [email protected] " "
+    [email protected]
+      [email protected] "foo"
+    [email protected]
+      [email protected] "("
+      [email protected] ")"
+    [email protected] " "
+    [email protected]
+      [email protected] "{"
+      [email protected] "\n    "
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected] "x"
+          [email protected] "."
+          [email protected] "0."
+        [email protected] ";"
+      [email protected] "\n    "
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected] "x"
+          [email protected] "."
+          [email protected]
+            [email protected] "1i32"
+        [email protected] ";"
+      [email protected] "\n    "
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected] "x"
+          [email protected] "."
+          [email protected]
+            [email protected] "0x01"
+        [email protected] ";"
+      [email protected] "\n"
+      [email protected] "}"
+  [email protected] "\n"
+error 27..31: Tuple (struct) field access is only allowed through decimal integers with no underscores or suffix
+error 39..43: Tuple (struct) field access is only allowed through decimal integers with no underscores or suffix
diff --git a/crates/syntax/test_data/parser/inline/err/0010_bad_tuple_index_expr.rs b/crates/syntax/test_data/parser/inline/err/0010_bad_tuple_index_expr.rs
new file mode 100644
index 000000000..30cc49138
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/err/0010_bad_tuple_index_expr.rs
@@ -0,0 +1,5 @@
+fn foo() {
+    x.0.;
+    x.1i32;
+    x.0x01;
+}
diff --git a/crates/syntax/test_data/parser/inline/err/0013_static_underscore.rast b/crates/syntax/test_data/parser/inline/err/0013_static_underscore.rast
new file mode 100644
index 000000000..8d761b907
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/err/0013_static_underscore.rast
@@ -0,0 +1,21 @@
+[email protected]
+  [email protected]
+    [email protected] "static"
+    [email protected] " "
+    [email protected]
+      [email protected] "_"
+    [email protected] ":"
+    [email protected] " "
+    [email protected]
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected] "i32"
+    [email protected] " "
+    [email protected] "="
+    [email protected] " "
+    [email protected]
+      [email protected] "5"
+    [email protected] ";"
+  [email protected] "\n"
+error 7..7: expected a name
diff --git a/crates/syntax/test_data/parser/inline/err/0013_static_underscore.rs b/crates/syntax/test_data/parser/inline/err/0013_static_underscore.rs
new file mode 100644
index 000000000..df8cecb43
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/err/0013_static_underscore.rs
@@ -0,0 +1 @@
+static _: i32 = 5;
diff --git a/crates/syntax/test_data/parser/inline/err/0014_record_literal_before_ellipsis_recovery.rast b/crates/syntax/test_data/parser/inline/err/0014_record_literal_before_ellipsis_recovery.rast
new file mode 100644
index 000000000..a81c442c0
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/err/0014_record_literal_before_ellipsis_recovery.rast
@@ -0,0 +1,48 @@
+[email protected]
+  [email protected]
+    [email protected] "fn"
+    [email protected] " "
+    [email protected]
+      [email protected] "main"
+    [email protected]
+      [email protected] "("
+      [email protected] ")"
+    [email protected] " "
+    [email protected]
+      [email protected] "{"
+      [email protected] "\n    "
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected] "S"
+        [email protected] " "
+        [email protected]
+          [email protected] "{"
+          [email protected] " "
+          [email protected]
+            [email protected]
+              [email protected] "field"
+            [email protected] " "
+            [email protected]
+              [email protected] ".."
+              [email protected]
+                [email protected]
+                  [email protected]
+                    [email protected]
+                      [email protected]
+                        [email protected]
+                          [email protected] "S"
+                    [email protected] "::"
+                    [email protected]
+                      [email protected]
+                        [email protected] "default"
+                [email protected]
+                  [email protected] "("
+                  [email protected] ")"
+          [email protected] " "
+          [email protected] "}"
+      [email protected] "\n"
+      [email protected] "}"
+  [email protected] "\n"
+error 25..25: expected COLON
diff --git a/crates/syntax/test_data/parser/inline/err/0014_record_literal_before_ellipsis_recovery.rs b/crates/syntax/test_data/parser/inline/err/0014_record_literal_before_ellipsis_recovery.rs
new file mode 100644
index 000000000..a4e5b2f69
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/err/0014_record_literal_before_ellipsis_recovery.rs
@@ -0,0 +1,3 @@
+fn main() {
+    S { field ..S::default() }
+}
diff --git a/crates/syntax/test_data/parser/inline/err/0015_empty_segment.rast b/crates/syntax/test_data/parser/inline/err/0015_empty_segment.rast
new file mode 100644
index 000000000..2f59d0606
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/err/0015_empty_segment.rast
@@ -0,0 +1,15 @@
+[email protected]
+  [email protected]
+    [email protected] "use"
+    [email protected] " "
+    [email protected]
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected] "crate"
+        [email protected] "::"
+        [email protected]
+          [email protected] ";"
+  [email protected] "\n"
+error 11..11: expected identifier
+error 12..12: expected SEMICOLON
diff --git a/crates/syntax/test_data/parser/inline/err/0015_empty_segment.rs b/crates/syntax/test_data/parser/inline/err/0015_empty_segment.rs
new file mode 100644
index 000000000..7510664e1
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/err/0015_empty_segment.rs
@@ -0,0 +1 @@
+use crate::;
diff --git a/crates/syntax/test_data/parser/inline/ok/0001_trait_item_list.rast b/crates/syntax/test_data/parser/inline/ok/0001_trait_item_list.rast
new file mode 100644
index 000000000..c7289e400
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0001_trait_item_list.rast
@@ -0,0 +1,71 @@
+[email protected]
+  [email protected]
+    [email protected] "impl"
+    [email protected] " "
+    [email protected]
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected] "F"
+    [email protected] " "
+    [email protected]
+      [email protected] "{"
+      [email protected] "\n    "
+      [email protected]
+        [email protected] "type"
+        [email protected] " "
+        [email protected]
+          [email protected] "A"
+        [email protected] ":"
+        [email protected] " "
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected]
+                    [email protected] "Clone"
+        [email protected] ";"
+      [email protected] "\n    "
+      [email protected]
+        [email protected] "const"
+        [email protected] " "
+        [email protected]
+          [email protected] "B"
+        [email protected] ":"
+        [email protected] " "
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected] "i32"
+        [email protected] ";"
+      [email protected] "\n    "
+      [email protected]
+        [email protected] "fn"
+        [email protected] " "
+        [email protected]
+          [email protected] "foo"
+        [email protected]
+          [email protected] "("
+          [email protected] ")"
+        [email protected] " "
+        [email protected]
+          [email protected] "{"
+          [email protected] "}"
+      [email protected] "\n    "
+      [email protected]
+        [email protected] "fn"
+        [email protected] " "
+        [email protected]
+          [email protected] "bar"
+        [email protected]
+          [email protected] "("
+          [email protected]
+            [email protected] "&"
+            [email protected] "self"
+          [email protected] ")"
+        [email protected] ";"
+      [email protected] "\n"
+      [email protected] "}"
+  [email protected] "\n"
diff --git a/crates/syntax/test_data/parser/inline/ok/0001_trait_item_list.rs b/crates/syntax/test_data/parser/inline/ok/0001_trait_item_list.rs
new file mode 100644
index 000000000..a5ec3239f
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0001_trait_item_list.rs
@@ -0,0 +1,6 @@
+impl F {
+    type A: Clone;
+    const B: i32;
+    fn foo() {}
+    fn bar(&self);
+}
diff --git a/crates/syntax/test_data/parser/inline/ok/0002_use_tree_list.rast b/crates/syntax/test_data/parser/inline/ok/0002_use_tree_list.rast
new file mode 100644
index 000000000..1e80dd7e2
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0002_use_tree_list.rast
@@ -0,0 +1,136 @@
+[email protected]
+  [email protected]
+    [email protected] "use"
+    [email protected] " "
+    [email protected]
+      [email protected]
+        [email protected] "{"
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected]
+                    [email protected] "crate"
+                [email protected] "::"
+                [email protected]
+                  [email protected]
+                    [email protected] "path"
+              [email protected] "::"
+              [email protected]
+                [email protected]
+                  [email protected] "from"
+            [email protected] "::"
+            [email protected]
+              [email protected]
+                [email protected] "root"
+        [email protected] ","
+        [email protected] " "
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected]
+                    [email protected]
+                      [email protected] "or"
+                [email protected] "::"
+                [email protected]
+                  [email protected]
+                    [email protected] "path"
+              [email protected] "::"
+              [email protected]
+                [email protected]
+                  [email protected] "from"
+            [email protected] "::"
+            [email protected]
+              [email protected]
+                [email protected] "crate_name"
+        [email protected] "}"
+    [email protected] ";"
+  [email protected] " "
+  [email protected] "// Rust 2018 (with a  ..."
+  [email protected] "\n"
+  [email protected]
+    [email protected] "use"
+    [email protected] " "
+    [email protected]
+      [email protected]
+        [email protected] "{"
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected]
+                    [email protected] "path"
+              [email protected] "::"
+              [email protected]
+                [email protected]
+                  [email protected] "from"
+            [email protected] "::"
+            [email protected]
+              [email protected]
+                [email protected] "root"
+        [email protected] "}"
+    [email protected] ";"
+  [email protected] " "
+  [email protected] "// Rust 2015"
+  [email protected] "\n"
+  [email protected]
+    [email protected] "use"
+    [email protected] " "
+    [email protected]
+      [email protected] "::"
+      [email protected]
+        [email protected] "{"
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected]
+                    [email protected] "some"
+              [email protected] "::"
+              [email protected]
+                [email protected]
+                  [email protected] "arbritrary"
+            [email protected] "::"
+            [email protected]
+              [email protected]
+                [email protected] "path"
+        [email protected] "}"
+    [email protected] ";"
+  [email protected] " "
+  [email protected] "// Rust 2015"
+  [email protected] "\n"
+  [email protected]
+    [email protected] "use"
+    [email protected] " "
+    [email protected]
+      [email protected] "::"
+      [email protected]
+        [email protected] "{"
+        [email protected]
+          [email protected]
+            [email protected] "{"
+            [email protected]
+              [email protected]
+                [email protected] "{"
+                [email protected]
+                  [email protected]
+                    [email protected]
+                      [email protected]
+                        [email protected]
+                          [email protected] "root"
+                    [email protected] "::"
+                    [email protected]
+                      [email protected]
+                        [email protected] "export"
+                [email protected] "}"
+            [email protected] "}"
+        [email protected] "}"
+    [email protected] ";"
+  [email protected] " "
+  [email protected] "// Nonsensical but pe ..."
+  [email protected] "\n"
diff --git a/crates/syntax/test_data/parser/inline/ok/0002_use_tree_list.rs b/crates/syntax/test_data/parser/inline/ok/0002_use_tree_list.rs
new file mode 100644
index 000000000..381cba1e2
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0002_use_tree_list.rs
@@ -0,0 +1,4 @@
+use {crate::path::from::root, or::path::from::crate_name}; // Rust 2018 (with a crate named `or`)
+use {path::from::root}; // Rust 2015
+use ::{some::arbritrary::path}; // Rust 2015
+use ::{{{root::export}}}; // Nonsensical but perfectly legal nesting
diff --git a/crates/syntax/test_data/parser/inline/ok/0003_where_pred_for.rast b/crates/syntax/test_data/parser/inline/ok/0003_where_pred_for.rast
new file mode 100644
index 000000000..62da7b887
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0003_where_pred_for.rast
@@ -0,0 +1,60 @@
+[email protected]
+  [email protected]
+    [email protected] "fn"
+    [email protected] " "
+    [email protected]
+      [email protected] "for_trait"
+    [email protected]
+      [email protected] "<"
+      [email protected]
+        [email protected]
+          [email protected] "F"
+      [email protected] ">"
+    [email protected]
+      [email protected] "("
+      [email protected] ")"
+    [email protected] "\n"
+    [email protected]
+      [email protected] "where"
+      [email protected] "\n   "
+      [email protected]
+        [email protected] "for"
+        [email protected]
+          [email protected] "<"
+          [email protected]
+            [email protected] "\'a"
+          [email protected] ">"
+        [email protected] " "
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected] "F"
+        [email protected] ":"
+        [email protected] " "
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected]
+                    [email protected] "Fn"
+                  [email protected]
+                    [email protected] "("
+                    [email protected]
+                      [email protected]
+                        [email protected] "&"
+                        [email protected] "\'a"
+                        [email protected] " "
+                        [email protected]
+                          [email protected]
+                            [email protected]
+                              [email protected]
+                                [email protected] "str"
+                    [email protected] ")"
+    [email protected] "\n"
+    [email protected]
+      [email protected] "{"
+      [email protected] " "
+      [email protected] "}"
+  [email protected] "\n"
diff --git a/crates/syntax/test_data/parser/inline/ok/0003_where_pred_for.rs b/crates/syntax/test_data/parser/inline/ok/0003_where_pred_for.rs
new file mode 100644
index 000000000..423bc105b
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0003_where_pred_for.rs
@@ -0,0 +1,4 @@
+fn for_trait<F>()
+where
+   for<'a> F: Fn(&'a str)
+{ }
diff --git a/crates/syntax/test_data/parser/inline/ok/0004_value_parameters_no_patterns.rast b/crates/syntax/test_data/parser/inline/ok/0004_value_parameters_no_patterns.rast
new file mode 100644
index 000000000..b650735ba
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0004_value_parameters_no_patterns.rast
@@ -0,0 +1,60 @@
+[email protected]
+  [email protected]
+    [email protected] "type"
+    [email protected] " "
+    [email protected]
+      [email protected] "F"
+    [email protected] " "
+    [email protected] "="
+    [email protected] " "
+    [email protected]
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected] "Box"
+          [email protected]
+            [email protected] "<"
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected]
+                    [email protected]
+                      [email protected] "Fn"
+                    [email protected]
+                      [email protected] "("
+                      [email protected]
+                        [email protected]
+                          [email protected]
+                            [email protected]
+                              [email protected]
+                                [email protected] "i32"
+                      [email protected] ","
+                      [email protected] " "
+                      [email protected]
+                        [email protected]
+                          [email protected] "&"
+                          [email protected]
+                            [email protected]
+                              [email protected]
+                                [email protected]
+                                  [email protected] "i32"
+                      [email protected] ","
+                      [email protected] " "
+                      [email protected]
+                        [email protected]
+                          [email protected] "&"
+                          [email protected]
+                            [email protected]
+                              [email protected]
+                                [email protected]
+                                  [email protected] "i32"
+                      [email protected] ","
+                      [email protected] " "
+                      [email protected]
+                        [email protected]
+                          [email protected] "("
+                          [email protected] ")"
+                      [email protected] ")"
+            [email protected] ">"
+    [email protected] ";"
+  [email protected] "\n"
diff --git a/crates/syntax/test_data/parser/inline/ok/0004_value_parameters_no_patterns.rs b/crates/syntax/test_data/parser/inline/ok/0004_value_parameters_no_patterns.rs
new file mode 100644
index 000000000..93636e926
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0004_value_parameters_no_patterns.rs
@@ -0,0 +1 @@
+type F = Box<Fn(i32, &i32, &i32, ())>;
diff --git a/crates/syntax/test_data/parser/inline/ok/0005_function_type_params.rast b/crates/syntax/test_data/parser/inline/ok/0005_function_type_params.rast
new file mode 100644
index 000000000..8e0252ce7
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0005_function_type_params.rast
@@ -0,0 +1,37 @@
+[email protected]
+  [email protected]
+    [email protected] "fn"
+    [email protected] " "
+    [email protected]
+      [email protected] "foo"
+    [email protected]
+      [email protected] "<"
+      [email protected]
+        [email protected]
+          [email protected] "T"
+        [email protected] ":"
+        [email protected] " "
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected]
+                    [email protected] "Clone"
+          [email protected] " "
+          [email protected] "+"
+          [email protected] " "
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected]
+                    [email protected] "Copy"
+      [email protected] ">"
+    [email protected]
+      [email protected] "("
+      [email protected] ")"
+    [email protected]
+      [email protected] "{"
+      [email protected] "}"
+  [email protected] "\n"
diff --git a/crates/syntax/test_data/parser/inline/ok/0005_function_type_params.rs b/crates/syntax/test_data/parser/inline/ok/0005_function_type_params.rs
new file mode 100644
index 000000000..9df40ed39
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0005_function_type_params.rs
@@ -0,0 +1 @@
+fn foo<T: Clone + Copy>(){}
diff --git a/crates/syntax/test_data/parser/inline/ok/0006_self_param.rast b/crates/syntax/test_data/parser/inline/ok/0006_self_param.rast
new file mode 100644
index 000000000..d24ad7423
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0006_self_param.rast
@@ -0,0 +1,116 @@
+[email protected]
+  [email protected]
+    [email protected] "impl"
+    [email protected] " "
+    [email protected]
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected] "S"
+    [email protected] " "
+    [email protected]
+      [email protected] "{"
+      [email protected] "\n    "
+      [email protected]
+        [email protected] "fn"
+        [email protected] " "
+        [email protected]
+          [email protected] "a"
+        [email protected]
+          [email protected] "("
+          [email protected]
+            [email protected] "self"
+          [email protected] ")"
+        [email protected] " "
+        [email protected]
+          [email protected] "{"
+          [email protected] "}"
+      [email protected] "\n    "
+      [email protected]
+        [email protected] "fn"
+        [email protected] " "
+        [email protected]
+          [email protected] "b"
+        [email protected]
+          [email protected] "("
+          [email protected]
+            [email protected] "&"
+            [email protected] "self"
+          [email protected] ","
+          [email protected] ")"
+        [email protected] " "
+        [email protected]
+          [email protected] "{"
+          [email protected] "}"
+      [email protected] "\n    "
+      [email protected]
+        [email protected] "fn"
+        [email protected] " "
+        [email protected]
+          [email protected] "c"
+        [email protected]
+          [email protected] "("
+          [email protected]
+            [email protected] "&"
+            [email protected] "\'a"
+            [email protected] " "
+            [email protected] "self"
+          [email protected] ","
+          [email protected] ")"
+        [email protected] " "
+        [email protected]
+          [email protected] "{"
+          [email protected] "}"
+      [email protected] "\n    "
+      [email protected]
+        [email protected] "fn"
+        [email protected] " "
+        [email protected]
+          [email protected] "d"
+        [email protected]
+          [email protected] "("
+          [email protected]
+            [email protected] "&"
+            [email protected] "\'a"
+            [email protected] " "
+            [email protected] "mut"
+            [email protected] " "
+            [email protected] "self"
+          [email protected] ","
+          [email protected] " "
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected] "x"
+            [email protected] ":"
+            [email protected] " "
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected]
+                    [email protected] "i32"
+          [email protected] ")"
+        [email protected] " "
+        [email protected]
+          [email protected] "{"
+          [email protected] "}"
+      [email protected] "\n    "
+      [email protected]
+        [email protected] "fn"
+        [email protected] " "
+        [email protected]
+          [email protected] "e"
+        [email protected]
+          [email protected] "("
+          [email protected]
+            [email protected] "mut"
+            [email protected] " "
+            [email protected] "self"
+          [email protected] ")"
+        [email protected] " "
+        [email protected]
+          [email protected] "{"
+          [email protected] "}"
+      [email protected] "\n"
+      [email protected] "}"
+  [email protected] "\n"
diff --git a/crates/syntax/test_data/parser/inline/ok/0006_self_param.rs b/crates/syntax/test_data/parser/inline/ok/0006_self_param.rs
new file mode 100644
index 000000000..80c0a43f5
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0006_self_param.rs
@@ -0,0 +1,7 @@
+impl S {
+    fn a(self) {}
+    fn b(&self,) {}
+    fn c(&'a self,) {}
+    fn d(&'a mut self, x: i32) {}
+    fn e(mut self) {}
+}
diff --git a/crates/syntax/test_data/parser/inline/ok/0007_type_param_bounds.rast b/crates/syntax/test_data/parser/inline/ok/0007_type_param_bounds.rast
new file mode 100644
index 000000000..e95688f56
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0007_type_param_bounds.rast
@@ -0,0 +1,40 @@
+[email protected]
+  [email protected]
+    [email protected] "struct"
+    [email protected] " "
+    [email protected]
+      [email protected] "S"
+    [email protected]
+      [email protected] "<"
+      [email protected]
+        [email protected]
+          [email protected] "T"
+        [email protected] ":"
+        [email protected] " "
+        [email protected]
+          [email protected]
+            [email protected] "\'a"
+          [email protected] " "
+          [email protected] "+"
+          [email protected] " "
+          [email protected]
+            [email protected] "?"
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected]
+                    [email protected] "Sized"
+          [email protected] " "
+          [email protected] "+"
+          [email protected] " "
+          [email protected]
+            [email protected] "("
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected]
+                    [email protected] "Copy"
+            [email protected] ")"
+      [email protected] ">"
+    [email protected] ";"
+  [email protected] "\n"
diff --git a/crates/syntax/test_data/parser/inline/ok/0007_type_param_bounds.rs b/crates/syntax/test_data/parser/inline/ok/0007_type_param_bounds.rs
new file mode 100644
index 000000000..919bde0ee
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0007_type_param_bounds.rs
@@ -0,0 +1 @@
+struct S<T: 'a + ?Sized + (Copy)>;
diff --git a/crates/syntax/test_data/parser/inline/ok/0008_path_part.rast b/crates/syntax/test_data/parser/inline/ok/0008_path_part.rast
new file mode 100644
index 000000000..7d2f7eab0
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0008_path_part.rast
@@ -0,0 +1,96 @@
+[email protected]
+  [email protected]
+    [email protected] "fn"
+    [email protected] " "
+    [email protected]
+      [email protected] "foo"
+    [email protected]
+      [email protected] "("
+      [email protected] ")"
+    [email protected] " "
+    [email protected]
+      [email protected] "{"
+      [email protected] "\n    "
+      [email protected]
+        [email protected] "let"
+        [email protected] " "
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected] "foo"
+            [email protected] "::"
+            [email protected]
+              [email protected]
+                [email protected] "Bar"
+        [email protected] " "
+        [email protected] "="
+        [email protected] " "
+        [email protected]
+          [email protected] "("
+          [email protected] ")"
+        [email protected] ";"
+      [email protected] "\n    "
+      [email protected]
+        [email protected] "let"
+        [email protected] " "
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected] "::"
+              [email protected]
+                [email protected] "Bar"
+        [email protected] " "
+        [email protected] "="
+        [email protected] " "
+        [email protected]
+          [email protected] "("
+          [email protected] ")"
+        [email protected] ";"
+      [email protected] "\n    "
+      [email protected]
+        [email protected] "let"
+        [email protected] " "
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected] "Bar"
+          [email protected] " "
+          [email protected]
+            [email protected] "{"
+            [email protected] " "
+            [email protected] ".."
+            [email protected] " "
+            [email protected] "}"
+        [email protected] " "
+        [email protected] "="
+        [email protected] " "
+        [email protected]
+          [email protected] "("
+          [email protected] ")"
+        [email protected] ";"
+      [email protected] "\n    "
+      [email protected]
+        [email protected] "let"
+        [email protected] " "
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected] "Bar"
+          [email protected] "("
+          [email protected]
+            [email protected] ".."
+          [email protected] ")"
+        [email protected] " "
+        [email protected] "="
+        [email protected] " "
+        [email protected]
+          [email protected] "("
+          [email protected] ")"
+        [email protected] ";"
+      [email protected] "\n"
+      [email protected] "}"
+  [email protected] "\n"
diff --git a/crates/syntax/test_data/parser/inline/ok/0008_path_part.rs b/crates/syntax/test_data/parser/inline/ok/0008_path_part.rs
new file mode 100644
index 000000000..f6e32c7c1
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0008_path_part.rs
@@ -0,0 +1,6 @@
+fn foo() {
+    let foo::Bar = ();
+    let ::Bar = ();
+    let Bar { .. } = ();
+    let Bar(..) = ();
+}
diff --git a/crates/syntax/test_data/parser/inline/ok/0009_loop_expr.rast b/crates/syntax/test_data/parser/inline/ok/0009_loop_expr.rast
new file mode 100644
index 000000000..f62826fd5
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0009_loop_expr.rast
@@ -0,0 +1,24 @@
+[email protected]
+  [email protected]
+    [email protected] "fn"
+    [email protected] " "
+    [email protected]
+      [email protected] "foo"
+    [email protected]
+      [email protected] "("
+      [email protected] ")"
+    [email protected] " "
+    [email protected]
+      [email protected] "{"
+      [email protected] "\n    "
+      [email protected]
+        [email protected]
+          [email protected] "loop"
+          [email protected] " "
+          [email protected]
+            [email protected] "{"
+            [email protected] "}"
+        [email protected] ";"
+      [email protected] "\n"
+      [email protected] "}"
+  [email protected] "\n"
diff --git a/crates/syntax/test_data/parser/inline/ok/0009_loop_expr.rs b/crates/syntax/test_data/parser/inline/ok/0009_loop_expr.rs
new file mode 100644
index 000000000..9f078fa48
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0009_loop_expr.rs
@@ -0,0 +1,3 @@
+fn foo() {
+    loop {};
+}
diff --git a/crates/syntax/test_data/parser/inline/ok/0010_extern_block.rast b/crates/syntax/test_data/parser/inline/ok/0010_extern_block.rast
new file mode 100644
index 000000000..869875875
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0010_extern_block.rast
@@ -0,0 +1,9 @@
+[email protected]
+  [email protected]
+    [email protected]
+      [email protected] "extern"
+    [email protected] " "
+    [email protected]
+      [email protected] "{"
+      [email protected] "}"
+  [email protected] "\n"
diff --git a/crates/syntax/test_data/parser/inline/ok/0010_extern_block.rs b/crates/syntax/test_data/parser/inline/ok/0010_extern_block.rs
new file mode 100644
index 000000000..26a9ccd1e
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0010_extern_block.rs
@@ -0,0 +1 @@
+extern {}
diff --git a/crates/syntax/test_data/parser/inline/ok/0011_field_expr.rast b/crates/syntax/test_data/parser/inline/ok/0011_field_expr.rast
new file mode 100644
index 000000000..66a609346
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0011_field_expr.rast
@@ -0,0 +1,59 @@
+[email protected]
+  [email protected]
+    [email protected] "fn"
+    [email protected] " "
+    [email protected]
+      [email protected] "foo"
+    [email protected]
+      [email protected] "("
+      [email protected] ")"
+    [email protected] " "
+    [email protected]
+      [email protected] "{"
+      [email protected] "\n    "
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected] "x"
+          [email protected] "."
+          [email protected]
+            [email protected] "foo"
+        [email protected] ";"
+      [email protected] "\n    "
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected]
+                    [email protected] "x"
+            [email protected] "."
+            [email protected]
+              [email protected] "0"
+          [email protected] "."
+          [email protected]
+            [email protected] "bar"
+        [email protected] ";"
+      [email protected] "\n    "
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected]
+                    [email protected] "x"
+            [email protected] "."
+            [email protected]
+              [email protected] "0"
+          [email protected]
+            [email protected] "("
+            [email protected] ")"
+        [email protected] ";"
+      [email protected] "\n"
+      [email protected] "}"
+  [email protected] "\n"
diff --git a/crates/syntax/test_data/parser/inline/ok/0011_field_expr.rs b/crates/syntax/test_data/parser/inline/ok/0011_field_expr.rs
new file mode 100644
index 000000000..b8da2ddc3
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0011_field_expr.rs
@@ -0,0 +1,5 @@
+fn foo() {
+    x.foo;
+    x.0.bar;
+    x.0();
+}
diff --git a/crates/syntax/test_data/parser/inline/ok/0012_type_item_where_clause.rast b/crates/syntax/test_data/parser/inline/ok/0012_type_item_where_clause.rast
new file mode 100644
index 000000000..28c94bfd6
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0012_type_item_where_clause.rast
@@ -0,0 +1,33 @@
+[email protected]
+  [email protected]
+    [email protected] "type"
+    [email protected] " "
+    [email protected]
+      [email protected] "Foo"
+    [email protected] " "
+    [email protected]
+      [email protected] "where"
+      [email protected] " "
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected] "Foo"
+        [email protected] ":"
+        [email protected] " "
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected]
+                    [email protected] "Copy"
+    [email protected] " "
+    [email protected] "="
+    [email protected] " "
+    [email protected]
+      [email protected] "("
+      [email protected] ")"
+    [email protected] ";"
+  [email protected] "\n"
diff --git a/crates/syntax/test_data/parser/inline/ok/0012_type_item_where_clause.rs b/crates/syntax/test_data/parser/inline/ok/0012_type_item_where_clause.rs
new file mode 100644
index 000000000..a602d07f0
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0012_type_item_where_clause.rs
@@ -0,0 +1 @@
+type Foo where Foo: Copy = ();
diff --git a/crates/syntax/test_data/parser/inline/ok/0013_pointer_type_mut.rast b/crates/syntax/test_data/parser/inline/ok/0013_pointer_type_mut.rast
new file mode 100644
index 000000000..d33215b50
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0013_pointer_type_mut.rast
@@ -0,0 +1,35 @@
+[email protected]
+  [email protected]
+    [email protected] "type"
+    [email protected] " "
+    [email protected]
+      [email protected] "M"
+    [email protected] " "
+    [email protected] "="
+    [email protected] " "
+    [email protected]
+      [email protected] "*"
+      [email protected] "mut"
+      [email protected] " "
+      [email protected]
+        [email protected] "("
+        [email protected] ")"
+    [email protected] ";"
+  [email protected] "\n"
+  [email protected]
+    [email protected] "type"
+    [email protected] " "
+    [email protected]
+      [email protected] "C"
+    [email protected] " "
+    [email protected] "="
+    [email protected] " "
+    [email protected]
+      [email protected] "*"
+      [email protected] "mut"
+      [email protected] " "
+      [email protected]
+        [email protected] "("
+        [email protected] ")"
+    [email protected] ";"
+  [email protected] "\n"
diff --git a/crates/syntax/test_data/parser/inline/ok/0013_pointer_type_mut.rs b/crates/syntax/test_data/parser/inline/ok/0013_pointer_type_mut.rs
new file mode 100644
index 000000000..04b2bb9ba
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0013_pointer_type_mut.rs
@@ -0,0 +1,2 @@
+type M = *mut ();
+type C = *mut ();
diff --git a/crates/syntax/test_data/parser/inline/ok/0014_never_type.rast b/crates/syntax/test_data/parser/inline/ok/0014_never_type.rast
new file mode 100644
index 000000000..b1d5106ce
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0014_never_type.rast
@@ -0,0 +1,13 @@
+[email protected]
+  [email protected]
+    [email protected] "type"
+    [email protected] " "
+    [email protected]
+      [email protected] "Never"
+    [email protected] " "
+    [email protected] "="
+    [email protected] " "
+    [email protected]
+      [email protected] "!"
+    [email protected] ";"
+  [email protected] "\n"
diff --git a/crates/syntax/test_data/parser/inline/ok/0014_never_type.rs b/crates/syntax/test_data/parser/inline/ok/0014_never_type.rs
new file mode 100644
index 000000000..de399fcf4
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0014_never_type.rs
@@ -0,0 +1 @@
+type Never = !;
diff --git a/crates/syntax/test_data/parser/inline/ok/0015_continue_expr.rast b/crates/syntax/test_data/parser/inline/ok/0015_continue_expr.rast
new file mode 100644
index 000000000..104e153ce
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0015_continue_expr.rast
@@ -0,0 +1,35 @@
+[email protected]
+  [email protected]
+    [email protected] "fn"
+    [email protected] " "
+    [email protected]
+      [email protected] "foo"
+    [email protected]
+      [email protected] "("
+      [email protected] ")"
+    [email protected] " "
+    [email protected]
+      [email protected] "{"
+      [email protected] "\n    "
+      [email protected]
+        [email protected] "loop"
+        [email protected] " "
+        [email protected]
+          [email protected] "{"
+          [email protected] "\n        "
+          [email protected]
+            [email protected]
+              [email protected] "continue"
+            [email protected] ";"
+          [email protected] "\n        "
+          [email protected]
+            [email protected]
+              [email protected] "continue"
+              [email protected] " "
+              [email protected] "\'l"
+            [email protected] ";"
+          [email protected] "\n    "
+          [email protected] "}"
+      [email protected] "\n"
+      [email protected] "}"
+  [email protected] "\n"
diff --git a/crates/syntax/test_data/parser/inline/ok/0015_continue_expr.rs b/crates/syntax/test_data/parser/inline/ok/0015_continue_expr.rs
new file mode 100644
index 000000000..474cc3f0e
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0015_continue_expr.rs
@@ -0,0 +1,6 @@
+fn foo() {
+    loop {
+        continue;
+        continue 'l;
+    }
+}
diff --git a/crates/syntax/test_data/parser/inline/ok/0017_array_type.rast b/crates/syntax/test_data/parser/inline/ok/0017_array_type.rast
new file mode 100644
index 000000000..c131df1c9
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0017_array_type.rast
@@ -0,0 +1,21 @@
+[email protected]
+  [email protected]
+    [email protected] "type"
+    [email protected] " "
+    [email protected]
+      [email protected] "T"
+    [email protected] " "
+    [email protected] "="
+    [email protected] " "
+    [email protected]
+      [email protected] "["
+      [email protected]
+        [email protected] "("
+        [email protected] ")"
+      [email protected] ";"
+      [email protected] " "
+      [email protected]
+        [email protected] "92"
+      [email protected] "]"
+    [email protected] ";"
+  [email protected] "\n"
diff --git a/crates/syntax/test_data/parser/inline/ok/0017_array_type.rs b/crates/syntax/test_data/parser/inline/ok/0017_array_type.rs
new file mode 100644
index 000000000..27eb22f22
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0017_array_type.rs
@@ -0,0 +1 @@
+type T = [(); 92];
diff --git a/crates/syntax/test_data/parser/inline/ok/0018_arb_self_types.rast b/crates/syntax/test_data/parser/inline/ok/0018_arb_self_types.rast
new file mode 100644
index 000000000..ddbd66588
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0018_arb_self_types.rast
@@ -0,0 +1,72 @@
+[email protected]
+  [email protected]
+    [email protected] "impl"
+    [email protected] " "
+    [email protected]
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected] "S"
+    [email protected] " "
+    [email protected]
+      [email protected] "{"
+      [email protected] "\n    "
+      [email protected]
+        [email protected] "fn"
+        [email protected] " "
+        [email protected]
+          [email protected] "a"
+        [email protected]
+          [email protected] "("
+          [email protected]
+            [email protected] "self"
+            [email protected] ":"
+            [email protected] " "
+            [email protected]
+              [email protected] "&"
+              [email protected]
+                [email protected]
+                  [email protected]
+                    [email protected]
+                      [email protected] "Self"
+          [email protected] ")"
+        [email protected] " "
+        [email protected]
+          [email protected] "{"
+          [email protected] "}"
+      [email protected] "\n    "
+      [email protected]
+        [email protected] "fn"
+        [email protected] " "
+        [email protected]
+          [email protected] "b"
+        [email protected]
+          [email protected] "("
+          [email protected]
+            [email protected] "mut"
+            [email protected] " "
+            [email protected] "self"
+            [email protected] ":"
+            [email protected] " "
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected]
+                    [email protected] "Box"
+                  [email protected]
+                    [email protected] "<"
+                    [email protected]
+                      [email protected]
+                        [email protected]
+                          [email protected]
+                            [email protected]
+                              [email protected] "Self"
+                    [email protected] ">"
+          [email protected] ")"
+        [email protected] " "
+        [email protected]
+          [email protected] "{"
+          [email protected] "}"
+      [email protected] "\n"
+      [email protected] "}"
+  [email protected] "\n"
diff --git a/crates/syntax/test_data/parser/inline/ok/0018_arb_self_types.rs b/crates/syntax/test_data/parser/inline/ok/0018_arb_self_types.rs
new file mode 100644
index 000000000..6a170d5ac
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0018_arb_self_types.rs
@@ -0,0 +1,4 @@
+impl S {
+    fn a(self: &Self) {}
+    fn b(mut self: Box<Self>) {}
+}
diff --git a/crates/syntax/test_data/parser/inline/ok/0019_unary_expr.rast b/crates/syntax/test_data/parser/inline/ok/0019_unary_expr.rast
new file mode 100644
index 000000000..7db38ea4d
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0019_unary_expr.rast
@@ -0,0 +1,44 @@
+[email protected]
+  [email protected]
+    [email protected] "fn"
+    [email protected] " "
+    [email protected]
+      [email protected] "foo"
+    [email protected]
+      [email protected] "("
+      [email protected] ")"
+    [email protected] " "
+    [email protected]
+      [email protected] "{"
+      [email protected] "\n    "
+      [email protected]
+        [email protected]
+          [email protected] "*"
+          [email protected]
+            [email protected] "*"
+            [email protected]
+              [email protected] "&"
+              [email protected]
+                [email protected] "1"
+        [email protected] ";"
+      [email protected] "\n    "
+      [email protected]
+        [email protected]
+          [email protected] "!"
+          [email protected]
+            [email protected] "!"
+            [email protected]
+              [email protected] "true"
+        [email protected] ";"
+      [email protected] "\n    "
+      [email protected]
+        [email protected]
+          [email protected] "-"
+          [email protected]
+            [email protected] "-"
+            [email protected]
+              [email protected] "1"
+        [email protected] ";"
+      [email protected] "\n"
+      [email protected] "}"
+  [email protected] "\n"
diff --git a/crates/syntax/test_data/parser/inline/ok/0019_unary_expr.rs b/crates/syntax/test_data/parser/inline/ok/0019_unary_expr.rs
new file mode 100644
index 000000000..f1c3f7118
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0019_unary_expr.rs
@@ -0,0 +1,5 @@
+fn foo() {
+    **&1;
+    !!true;
+    --1;
+}
diff --git a/crates/syntax/test_data/parser/inline/ok/0020_use_star.rast b/crates/syntax/test_data/parser/inline/ok/0020_use_star.rast
new file mode 100644
index 000000000..b3623c445
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0020_use_star.rast
@@ -0,0 +1,59 @@
+[email protected]
+  [email protected]
+    [email protected] "use"
+    [email protected] " "
+    [email protected]
+      [email protected] "*"
+    [email protected] ";"
+  [email protected] "\n"
+  [email protected]
+    [email protected] "use"
+    [email protected] " "
+    [email protected]
+      [email protected] "::"
+      [email protected] "*"
+    [email protected] ";"
+  [email protected] "\n"
+  [email protected]
+    [email protected] "use"
+    [email protected] " "
+    [email protected]
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected] "some"
+        [email protected] "::"
+        [email protected]
+          [email protected]
+            [email protected] "path"
+      [email protected] "::"
+      [email protected]
+        [email protected] "{"
+        [email protected]
+          [email protected] "*"
+        [email protected] "}"
+    [email protected] ";"
+  [email protected] "\n"
+  [email protected]
+    [email protected] "use"
+    [email protected] " "
+    [email protected]
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected] "some"
+        [email protected] "::"
+        [email protected]
+          [email protected]
+            [email protected] "path"
+      [email protected] "::"
+      [email protected]
+        [email protected] "{"
+        [email protected]
+          [email protected] "::"
+          [email protected] "*"
+        [email protected] "}"
+    [email protected] ";"
+  [email protected] "\n"
diff --git a/crates/syntax/test_data/parser/inline/ok/0020_use_star.rs b/crates/syntax/test_data/parser/inline/ok/0020_use_star.rs
new file mode 100644
index 000000000..6f15769a8
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0020_use_star.rs
@@ -0,0 +1,4 @@
+use *;
+use ::*;
+use some::path::{*};
+use some::path::{::*};
diff --git a/crates/syntax/test_data/parser/inline/ok/0021_impl_item_list.rast b/crates/syntax/test_data/parser/inline/ok/0021_impl_item_list.rast
new file mode 100644
index 000000000..ca0702aba
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0021_impl_item_list.rast
@@ -0,0 +1,78 @@
+[email protected]
+  [email protected]
+    [email protected] "impl"
+    [email protected] " "
+    [email protected]
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected] "F"
+    [email protected] " "
+    [email protected]
+      [email protected] "{"
+      [email protected] "\n    "
+      [email protected]
+        [email protected] "type"
+        [email protected] " "
+        [email protected]
+          [email protected] "A"
+        [email protected] " "
+        [email protected] "="
+        [email protected] " "
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected] "i32"
+        [email protected] ";"
+      [email protected] "\n    "
+      [email protected]
+        [email protected] "const"
+        [email protected] " "
+        [email protected]
+          [email protected] "B"
+        [email protected] ":"
+        [email protected] " "
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected] "i32"
+        [email protected] " "
+        [email protected] "="
+        [email protected] " "
+        [email protected]
+          [email protected] "92"
+        [email protected] ";"
+      [email protected] "\n    "
+      [email protected]
+        [email protected] "fn"
+        [email protected] " "
+        [email protected]
+          [email protected] "foo"
+        [email protected]
+          [email protected] "("
+          [email protected] ")"
+        [email protected] " "
+        [email protected]
+          [email protected] "{"
+          [email protected] "}"
+      [email protected] "\n    "
+      [email protected]
+        [email protected] "fn"
+        [email protected] " "
+        [email protected]
+          [email protected] "bar"
+        [email protected]
+          [email protected] "("
+          [email protected]
+            [email protected] "&"
+            [email protected] "self"
+          [email protected] ")"
+        [email protected] " "
+        [email protected]
+          [email protected] "{"
+          [email protected] "}"
+      [email protected] "\n"
+      [email protected] "}"
+  [email protected] "\n"
diff --git a/crates/syntax/test_data/parser/inline/ok/0021_impl_item_list.rs b/crates/syntax/test_data/parser/inline/ok/0021_impl_item_list.rs
new file mode 100644
index 000000000..f10851487
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0021_impl_item_list.rs
@@ -0,0 +1,6 @@
+impl F {
+    type A = i32;
+    const B: i32 = 92;
+    fn foo() {}
+    fn bar(&self) {}
+}
diff --git a/crates/syntax/test_data/parser/inline/ok/0022_crate_visibility.rast b/crates/syntax/test_data/parser/inline/ok/0022_crate_visibility.rast
new file mode 100644
index 000000000..50742cbcf
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0022_crate_visibility.rast
@@ -0,0 +1,53 @@
+[email protected]
+  [email protected]
+    [email protected]
+      [email protected] "pub"
+      [email protected] "("
+      [email protected] "crate"
+      [email protected] ")"
+    [email protected] " "
+    [email protected] "struct"
+    [email protected] " "
+    [email protected]
+      [email protected] "S"
+    [email protected] ";"
+  [email protected] "\n"
+  [email protected]
+    [email protected]
+      [email protected] "pub"
+      [email protected] "("
+      [email protected] "self"
+      [email protected] ")"
+    [email protected] " "
+    [email protected] "struct"
+    [email protected] " "
+    [email protected]
+      [email protected] "S"
+    [email protected] ";"
+  [email protected] "\n"
+  [email protected]
+    [email protected]
+      [email protected] "pub"
+      [email protected] "("
+      [email protected] "self"
+      [email protected] ")"
+    [email protected] " "
+    [email protected] "struct"
+    [email protected] " "
+    [email protected]
+      [email protected] "S"
+    [email protected] ";"
+  [email protected] "\n"
+  [email protected]
+    [email protected]
+      [email protected] "pub"
+      [email protected] "("
+      [email protected] "self"
+      [email protected] ")"
+    [email protected] " "
+    [email protected] "struct"
+    [email protected] " "
+    [email protected]
+      [email protected] "S"
+    [email protected] ";"
+  [email protected] "\n"
diff --git a/crates/syntax/test_data/parser/inline/ok/0022_crate_visibility.rs b/crates/syntax/test_data/parser/inline/ok/0022_crate_visibility.rs
new file mode 100644
index 000000000..faeefde94
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0022_crate_visibility.rs
@@ -0,0 +1,4 @@
+pub(crate) struct S;
+pub(self) struct S;
+pub(self) struct S;
+pub(self) struct S;
diff --git a/crates/syntax/test_data/parser/inline/ok/0023_placeholder_type.rast b/crates/syntax/test_data/parser/inline/ok/0023_placeholder_type.rast
new file mode 100644
index 000000000..e4fe2b948
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0023_placeholder_type.rast
@@ -0,0 +1,13 @@
+[email protected]
+  [email protected]
+    [email protected] "type"
+    [email protected] " "
+    [email protected]
+      [email protected] "Placeholder"
+    [email protected] " "
+    [email protected] "="
+    [email protected] " "
+    [email protected]
+      [email protected] "_"
+    [email protected] ";"
+  [email protected] "\n"
diff --git a/crates/syntax/test_data/parser/inline/ok/0023_placeholder_type.rs b/crates/syntax/test_data/parser/inline/ok/0023_placeholder_type.rs
new file mode 100644
index 000000000..7952dbd57
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0023_placeholder_type.rs
@@ -0,0 +1 @@
+type Placeholder = _;
diff --git a/crates/syntax/test_data/parser/inline/ok/0024_slice_pat.rast b/crates/syntax/test_data/parser/inline/ok/0024_slice_pat.rast
new file mode 100644
index 000000000..2dbce34b6
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0024_slice_pat.rast
@@ -0,0 +1,41 @@
+[email protected]
+  [email protected]
+    [email protected] "fn"
+    [email protected] " "
+    [email protected]
+      [email protected] "main"
+    [email protected]
+      [email protected] "("
+      [email protected] ")"
+    [email protected] " "
+    [email protected]
+      [email protected] "{"
+      [email protected] "\n    "
+      [email protected]
+        [email protected] "let"
+        [email protected] " "
+        [email protected]
+          [email protected] "["
+          [email protected]
+            [email protected]
+              [email protected] "a"
+          [email protected] ","
+          [email protected] " "
+          [email protected]
+            [email protected]
+              [email protected] "b"
+          [email protected] ","
+          [email protected] " "
+          [email protected]
+            [email protected] ".."
+          [email protected] "]"
+        [email protected] " "
+        [email protected] "="
+        [email protected] " "
+        [email protected]
+          [email protected] "["
+          [email protected] "]"
+        [email protected] ";"
+      [email protected] "\n"
+      [email protected] "}"
+  [email protected] "\n"
diff --git a/crates/syntax/test_data/parser/inline/ok/0024_slice_pat.rs b/crates/syntax/test_data/parser/inline/ok/0024_slice_pat.rs
new file mode 100644
index 000000000..7955973b9
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0024_slice_pat.rs
@@ -0,0 +1,3 @@
+fn main() {
+    let [a, b, ..] = [];
+}
diff --git a/crates/syntax/test_data/parser/inline/ok/0025_slice_type.rast b/crates/syntax/test_data/parser/inline/ok/0025_slice_type.rast
new file mode 100644
index 000000000..fd819ea37
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0025_slice_type.rast
@@ -0,0 +1,17 @@
+[email protected]
+  [email protected]
+    [email protected] "type"
+    [email protected] " "
+    [email protected]
+      [email protected] "T"
+    [email protected] " "
+    [email protected] "="
+    [email protected] " "
+    [email protected]
+      [email protected] "["
+      [email protected]
+        [email protected] "("
+        [email protected] ")"
+      [email protected] "]"
+    [email protected] ";"
+  [email protected] "\n"
diff --git a/crates/syntax/test_data/parser/inline/ok/0025_slice_type.rs b/crates/syntax/test_data/parser/inline/ok/0025_slice_type.rs
new file mode 100644
index 000000000..4da1af827
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0025_slice_type.rs
@@ -0,0 +1 @@
+type T = [()];
diff --git a/crates/syntax/test_data/parser/inline/ok/0026_tuple_pat_fields.rast b/crates/syntax/test_data/parser/inline/ok/0026_tuple_pat_fields.rast
new file mode 100644
index 000000000..467a30134
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0026_tuple_pat_fields.rast
@@ -0,0 +1,104 @@
+[email protected]
+  [email protected]
+    [email protected] "fn"
+    [email protected] " "
+    [email protected]
+      [email protected] "foo"
+    [email protected]
+      [email protected] "("
+      [email protected] ")"
+    [email protected] " "
+    [email protected]
+      [email protected] "{"
+      [email protected] "\n    "
+      [email protected]
+        [email protected] "let"
+        [email protected] " "
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected] "S"
+          [email protected] "("
+          [email protected] ")"
+        [email protected] " "
+        [email protected] "="
+        [email protected] " "
+        [email protected]
+          [email protected] "("
+          [email protected] ")"
+        [email protected] ";"
+      [email protected] "\n    "
+      [email protected]
+        [email protected] "let"
+        [email protected] " "
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected] "S"
+          [email protected] "("
+          [email protected]
+            [email protected] "_"
+          [email protected] ")"
+        [email protected] " "
+        [email protected] "="
+        [email protected] " "
+        [email protected]
+          [email protected] "("
+          [email protected] ")"
+        [email protected] ";"
+      [email protected] "\n    "
+      [email protected]
+        [email protected] "let"
+        [email protected] " "
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected] "S"
+          [email protected] "("
+          [email protected]
+            [email protected] "_"
+          [email protected] ","
+          [email protected] ")"
+        [email protected] " "
+        [email protected] "="
+        [email protected] " "
+        [email protected]
+          [email protected] "("
+          [email protected] ")"
+        [email protected] ";"
+      [email protected] "\n    "
+      [email protected]
+        [email protected] "let"
+        [email protected] " "
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected] "S"
+          [email protected] "("
+          [email protected]
+            [email protected] "_"
+          [email protected] ","
+          [email protected] " "
+          [email protected]
+            [email protected] ".."
+          [email protected] " "
+          [email protected] ","
+          [email protected] " "
+          [email protected]
+            [email protected]
+              [email protected] "x"
+          [email protected] ")"
+        [email protected] " "
+        [email protected] "="
+        [email protected] " "
+        [email protected]
+          [email protected] "("
+          [email protected] ")"
+        [email protected] ";"
+      [email protected] "\n"
+      [email protected] "}"
+  [email protected] "\n"
diff --git a/crates/syntax/test_data/parser/inline/ok/0026_tuple_pat_fields.rs b/crates/syntax/test_data/parser/inline/ok/0026_tuple_pat_fields.rs
new file mode 100644
index 000000000..0dfe63629
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0026_tuple_pat_fields.rs
@@ -0,0 +1,6 @@
+fn foo() {
+    let S() = ();
+    let S(_) = ();
+    let S(_,) = ();
+    let S(_, .. , x) = ();
+}
diff --git a/crates/syntax/test_data/parser/inline/ok/0027_ref_pat.rast b/crates/syntax/test_data/parser/inline/ok/0027_ref_pat.rast
new file mode 100644
index 000000000..348b54dc9
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0027_ref_pat.rast
@@ -0,0 +1,49 @@
+[email protected]
+  [email protected]
+    [email protected] "fn"
+    [email protected] " "
+    [email protected]
+      [email protected] "main"
+    [email protected]
+      [email protected] "("
+      [email protected] ")"
+    [email protected] " "
+    [email protected]
+      [email protected] "{"
+      [email protected] "\n    "
+      [email protected]
+        [email protected] "let"
+        [email protected] " "
+        [email protected]
+          [email protected] "&"
+          [email protected]
+            [email protected]
+              [email protected] "a"
+        [email protected] " "
+        [email protected] "="
+        [email protected] " "
+        [email protected]
+          [email protected] "("
+          [email protected] ")"
+        [email protected] ";"
+      [email protected] "\n    "
+      [email protected]
+        [email protected] "let"
+        [email protected] " "
+        [email protected]
+          [email protected] "&"
+          [email protected] "mut"
+          [email protected] " "
+          [email protected]
+            [email protected]
+              [email protected] "b"
+        [email protected] " "
+        [email protected] "="
+        [email protected] " "
+        [email protected]
+          [email protected] "("
+          [email protected] ")"
+        [email protected] ";"
+      [email protected] "\n"
+      [email protected] "}"
+  [email protected] "\n"
diff --git a/crates/syntax/test_data/parser/inline/ok/0027_ref_pat.rs b/crates/syntax/test_data/parser/inline/ok/0027_ref_pat.rs
new file mode 100644
index 000000000..de41f5cae
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0027_ref_pat.rs
@@ -0,0 +1,4 @@
+fn main() {
+    let &a = ();
+    let &mut b = ();
+}
diff --git a/crates/syntax/test_data/parser/inline/ok/0028_impl_trait_type.rast b/crates/syntax/test_data/parser/inline/ok/0028_impl_trait_type.rast
new file mode 100644
index 000000000..32b2959bd
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0028_impl_trait_type.rast
@@ -0,0 +1,43 @@
+[email protected]
+  [email protected]
+    [email protected] "type"
+    [email protected] " "
+    [email protected]
+      [email protected] "A"
+    [email protected] " "
+    [email protected] "="
+    [email protected] " "
+    [email protected]
+      [email protected] "impl"
+      [email protected] " "
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected] "Iterator"
+                [email protected]
+                  [email protected] "<"
+                  [email protected]
+                    [email protected]
+                      [email protected] "Item"
+                    [email protected] "="
+                    [email protected]
+                      [email protected]
+                        [email protected]
+                          [email protected]
+                            [email protected] "Foo"
+                          [email protected]
+                            [email protected] "<"
+                            [email protected]
+                              [email protected] "\'a"
+                            [email protected] ">"
+                  [email protected] ">"
+        [email protected] " "
+        [email protected] "+"
+        [email protected] " "
+        [email protected]
+          [email protected] "\'a"
+    [email protected] ";"
+  [email protected] "\n"
diff --git a/crates/syntax/test_data/parser/inline/ok/0028_impl_trait_type.rs b/crates/syntax/test_data/parser/inline/ok/0028_impl_trait_type.rs
new file mode 100644
index 000000000..54c5a7c46
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0028_impl_trait_type.rs
@@ -0,0 +1 @@
+type A = impl Iterator<Item=Foo<'a>> + 'a;
diff --git a/crates/syntax/test_data/parser/inline/ok/0029_cast_expr.rast b/crates/syntax/test_data/parser/inline/ok/0029_cast_expr.rast
new file mode 100644
index 000000000..e096b3a1f
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0029_cast_expr.rast
@@ -0,0 +1,89 @@
+[email protected]
+  [email protected]
+    [email protected] "fn"
+    [email protected] " "
+    [email protected]
+      [email protected] "foo"
+    [email protected]
+      [email protected] "("
+      [email protected] ")"
+    [email protected] " "
+    [email protected]
+      [email protected] "{"
+      [email protected] "\n    "
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected] "82"
+          [email protected] " "
+          [email protected] "as"
+          [email protected] " "
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected] "i32"
+        [email protected] ";"
+      [email protected] "\n    "
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected] "81"
+            [email protected] " "
+            [email protected] "as"
+            [email protected] " "
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected]
+                    [email protected] "i8"
+          [email protected] " "
+          [email protected] "+"
+          [email protected] " "
+          [email protected]
+            [email protected] "1"
+        [email protected] ";"
+      [email protected] "\n    "
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected] "79"
+            [email protected] " "
+            [email protected] "as"
+            [email protected] " "
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected]
+                    [email protected] "i16"
+          [email protected] " "
+          [email protected] "-"
+          [email protected] " "
+          [email protected]
+            [email protected] "1"
+        [email protected] ";"
+      [email protected] "\n    "
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected] "0x36"
+            [email protected] " "
+            [email protected] "as"
+            [email protected] " "
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected]
+                    [email protected] "u8"
+          [email protected] " "
+          [email protected] "<="
+          [email protected] " "
+          [email protected]
+            [email protected] "0x37"
+        [email protected] ";"
+      [email protected] "\n"
+      [email protected] "}"
+  [email protected] "\n"
diff --git a/crates/syntax/test_data/parser/inline/ok/0029_cast_expr.rs b/crates/syntax/test_data/parser/inline/ok/0029_cast_expr.rs
new file mode 100644
index 000000000..bfe8e4b36
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0029_cast_expr.rs
@@ -0,0 +1,6 @@
+fn foo() {
+    82 as i32;
+    81 as i8 + 1;
+    79 as i16 - 1;
+    0x36 as u8 <= 0x37;
+}
diff --git a/crates/syntax/test_data/parser/inline/ok/0030_cond.rast b/crates/syntax/test_data/parser/inline/ok/0030_cond.rast
new file mode 100644
index 000000000..58a97d3ad
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0030_cond.rast
@@ -0,0 +1,202 @@
+[email protected]
+  [email protected]
+    [email protected] "fn"
+    [email protected] " "
+    [email protected]
+      [email protected] "foo"
+    [email protected]
+      [email protected] "("
+      [email protected] ")"
+    [email protected] " "
+    [email protected]
+      [email protected] "{"
+      [email protected] " "
+      [email protected]
+        [email protected] "if"
+        [email protected] " "
+        [email protected]
+          [email protected] "let"
+          [email protected] " "
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected] "Some"
+            [email protected] "("
+            [email protected]
+              [email protected] "_"
+            [email protected] ")"
+          [email protected] " "
+          [email protected] "="
+          [email protected] " "
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected] "None"
+        [email protected] " "
+        [email protected]
+          [email protected] "{"
+          [email protected] "}"
+      [email protected] " "
+      [email protected] "}"
+  [email protected] "\n"
+  [email protected]
+    [email protected] "fn"
+    [email protected] " "
+    [email protected]
+      [email protected] "bar"
+    [email protected]
+      [email protected] "("
+      [email protected] ")"
+    [email protected] " "
+    [email protected]
+      [email protected] "{"
+      [email protected] "\n    "
+      [email protected]
+        [email protected]
+          [email protected] "if"
+          [email protected] " "
+          [email protected]
+            [email protected] "let"
+            [email protected] " "
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected]
+                    [email protected]
+                      [email protected] "Some"
+                [email protected] "("
+                [email protected]
+                  [email protected] "_"
+                [email protected] ")"
+              [email protected] " "
+              [email protected] "|"
+              [email protected] " "
+              [email protected]
+                [email protected]
+                  [email protected]
+                    [email protected]
+                      [email protected] "Some"
+                [email protected] "("
+                [email protected]
+                  [email protected] "_"
+                [email protected] ")"
+            [email protected] " "
+            [email protected] "="
+            [email protected] " "
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected]
+                    [email protected] "None"
+          [email protected] " "
+          [email protected]
+            [email protected] "{"
+            [email protected] "}"
+      [email protected] "\n    "
+      [email protected]
+        [email protected]
+          [email protected] "if"
+          [email protected] " "
+          [email protected]
+            [email protected] "let"
+            [email protected] " "
+            [email protected] "|"
+            [email protected] " "
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected]
+                    [email protected] "Some"
+              [email protected] "("
+              [email protected]
+                [email protected] "_"
+              [email protected] ")"
+            [email protected] " "
+            [email protected] "="
+            [email protected] " "
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected]
+                    [email protected] "None"
+          [email protected] " "
+          [email protected]
+            [email protected] "{"
+            [email protected] "}"
+      [email protected] "\n    "
+      [email protected]
+        [email protected]
+          [email protected] "while"
+          [email protected] " "
+          [email protected]
+            [email protected] "let"
+            [email protected] " "
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected]
+                    [email protected]
+                      [email protected] "Some"
+                [email protected] "("
+                [email protected]
+                  [email protected] "_"
+                [email protected] ")"
+              [email protected] " "
+              [email protected] "|"
+              [email protected] " "
+              [email protected]
+                [email protected]
+                  [email protected]
+                    [email protected]
+                      [email protected] "Some"
+                [email protected] "("
+                [email protected]
+                  [email protected] "_"
+                [email protected] ")"
+            [email protected] " "
+            [email protected] "="
+            [email protected] " "
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected]
+                    [email protected] "None"
+          [email protected] " "
+          [email protected]
+            [email protected] "{"
+            [email protected] "}"
+      [email protected] "\n    "
+      [email protected]
+        [email protected] "while"
+        [email protected] " "
+        [email protected]
+          [email protected] "let"
+          [email protected] " "
+          [email protected] "|"
+          [email protected] " "
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected] "Some"
+            [email protected] "("
+            [email protected]
+              [email protected] "_"
+            [email protected] ")"
+          [email protected] " "
+          [email protected] "="
+          [email protected] " "
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected] "None"
+        [email protected] " "
+        [email protected]
+          [email protected] "{"
+          [email protected] "}"
+      [email protected] "\n"
+      [email protected] "}"
+  [email protected] "\n"
diff --git a/crates/syntax/test_data/parser/inline/ok/0030_cond.rs b/crates/syntax/test_data/parser/inline/ok/0030_cond.rs
new file mode 100644
index 000000000..2552a2621
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0030_cond.rs
@@ -0,0 +1,7 @@
+fn foo() { if let Some(_) = None {} }
+fn bar() {
+    if let Some(_) | Some(_) = None {}
+    if let | Some(_) = None {}
+    while let Some(_) | Some(_) = None {}
+    while let | Some(_) = None {}
+}
diff --git a/crates/syntax/test_data/parser/inline/ok/0031_while_expr.rast b/crates/syntax/test_data/parser/inline/ok/0031_while_expr.rast
new file mode 100644
index 000000000..173cecf6d
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0031_while_expr.rast
@@ -0,0 +1,84 @@
+[email protected]
+  [email protected]
+    [email protected] "fn"
+    [email protected] " "
+    [email protected]
+      [email protected] "foo"
+    [email protected]
+      [email protected] "("
+      [email protected] ")"
+    [email protected] " "
+    [email protected]
+      [email protected] "{"
+      [email protected] "\n    "
+      [email protected]
+        [email protected]
+          [email protected] "while"
+          [email protected] " "
+          [email protected]
+            [email protected]
+              [email protected] "true"
+          [email protected] " "
+          [email protected]
+            [email protected] "{"
+            [email protected] "}"
+        [email protected] ";"
+      [email protected] "\n    "
+      [email protected]
+        [email protected]
+          [email protected] "while"
+          [email protected] " "
+          [email protected]
+            [email protected] "let"
+            [email protected] " "
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected]
+                    [email protected] "Some"
+              [email protected] "("
+              [email protected]
+                [email protected]
+                  [email protected] "x"
+              [email protected] ")"
+            [email protected] " "
+            [email protected] "="
+            [email protected] " "
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected]
+                    [email protected]
+                      [email protected] "it"
+              [email protected] "."
+              [email protected]
+                [email protected] "next"
+              [email protected]
+                [email protected] "("
+                [email protected] ")"
+          [email protected] " "
+          [email protected]
+            [email protected] "{"
+            [email protected] "}"
+        [email protected] ";"
+      [email protected] "\n    "
+      [email protected]
+        [email protected]
+          [email protected] "while"
+          [email protected] " "
+          [email protected]
+            [email protected]
+              [email protected] "{"
+              [email protected] " "
+              [email protected]
+                [email protected] "true"
+              [email protected] " "
+              [email protected] "}"
+          [email protected] " "
+          [email protected]
+            [email protected] "{"
+            [email protected] "}"
+        [email protected] ";"
+      [email protected] "\n"
+      [email protected] "}"
+  [email protected] "\n"
diff --git a/crates/syntax/test_data/parser/inline/ok/0031_while_expr.rs b/crates/syntax/test_data/parser/inline/ok/0031_while_expr.rs
new file mode 100644
index 000000000..2f8188160
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0031_while_expr.rs
@@ -0,0 +1,5 @@
+fn foo() {
+    while true {};
+    while let Some(x) = it.next() {};
+    while { true } {};
+}
diff --git a/crates/syntax/test_data/parser/inline/ok/0032_fn_pointer_type.rast b/crates/syntax/test_data/parser/inline/ok/0032_fn_pointer_type.rast
new file mode 100644
index 000000000..dda6577ed
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0032_fn_pointer_type.rast
@@ -0,0 +1,98 @@
+[email protected]
+  [email protected]
+    [email protected] "type"
+    [email protected] " "
+    [email protected]
+      [email protected] "A"
+    [email protected] " "
+    [email protected] "="
+    [email protected] " "
+    [email protected]
+      [email protected] "fn"
+      [email protected]
+        [email protected] "("
+        [email protected] ")"
+    [email protected] ";"
+  [email protected] "\n"
+  [email protected]
+    [email protected] "type"
+    [email protected] " "
+    [email protected]
+      [email protected] "B"
+    [email protected] " "
+    [email protected] "="
+    [email protected] " "
+    [email protected]
+      [email protected] "unsafe"
+      [email protected] " "
+      [email protected] "fn"
+      [email protected]
+        [email protected] "("
+        [email protected] ")"
+    [email protected] ";"
+  [email protected] "\n"
+  [email protected]
+    [email protected] "type"
+    [email protected] " "
+    [email protected]
+      [email protected] "C"
+    [email protected] " "
+    [email protected] "="
+    [email protected] " "
+    [email protected]
+      [email protected] "unsafe"
+      [email protected] " "
+      [email protected]
+        [email protected] "extern"
+        [email protected] " "
+        [email protected] "\"C\""
+      [email protected] " "
+      [email protected] "fn"
+      [email protected]
+        [email protected] "("
+        [email protected] ")"
+    [email protected] ";"
+  [email protected] "\n"
+  [email protected]
+    [email protected] "type"
+    [email protected] " "
+    [email protected]
+      [email protected] "D"
+    [email protected] " "
+    [email protected] "="
+    [email protected] " "
+    [email protected]
+      [email protected]
+        [email protected] "extern"
+        [email protected] " "
+        [email protected] "\"C\""
+      [email protected] " "
+      [email protected] "fn"
+      [email protected] " "
+      [email protected]
+        [email protected] "("
+        [email protected] " "
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected] "u8"
+        [email protected] " "
+        [email protected] ","
+        [email protected] " "
+        [email protected]
+          [email protected] "..."
+        [email protected] " "
+        [email protected] ")"
+      [email protected] " "
+      [email protected]
+        [email protected] "->"
+        [email protected] " "
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected] "u8"
+    [email protected] ";"
+  [email protected] "\n"
diff --git a/crates/syntax/test_data/parser/inline/ok/0032_fn_pointer_type.rs b/crates/syntax/test_data/parser/inline/ok/0032_fn_pointer_type.rs
new file mode 100644
index 000000000..9493da83d
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0032_fn_pointer_type.rs
@@ -0,0 +1,4 @@
+type A = fn();
+type B = unsafe fn();
+type C = unsafe extern "C" fn();
+type D = extern "C" fn ( u8 , ... ) -> u8;
diff --git a/crates/syntax/test_data/parser/inline/ok/0033_reference_type;.rast b/crates/syntax/test_data/parser/inline/ok/0033_reference_type;.rast
new file mode 100644
index 000000000..974df9f9a
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0033_reference_type;.rast
@@ -0,0 +1,50 @@
+[email protected]
+  [email protected]
+    [email protected] "type"
+    [email protected] " "
+    [email protected]
+      [email protected] "A"
+    [email protected] " "
+    [email protected] "="
+    [email protected] " "
+    [email protected]
+      [email protected] "&"
+      [email protected]
+        [email protected] "("
+        [email protected] ")"
+    [email protected] ";"
+  [email protected] "\n"
+  [email protected]
+    [email protected] "type"
+    [email protected] " "
+    [email protected]
+      [email protected] "B"
+    [email protected] " "
+    [email protected] "="
+    [email protected] " "
+    [email protected]
+      [email protected] "&"
+      [email protected] "\'static"
+      [email protected] " "
+      [email protected]
+        [email protected] "("
+        [email protected] ")"
+    [email protected] ";"
+  [email protected] "\n"
+  [email protected]
+    [email protected] "type"
+    [email protected] " "
+    [email protected]
+      [email protected] "C"
+    [email protected] " "
+    [email protected] "="
+    [email protected] " "
+    [email protected]
+      [email protected] "&"
+      [email protected] "mut"
+      [email protected] " "
+      [email protected]
+        [email protected] "("
+        [email protected] ")"
+    [email protected] ";"
+  [email protected] "\n"
diff --git a/crates/syntax/test_data/parser/inline/ok/0033_reference_type;.rs b/crates/syntax/test_data/parser/inline/ok/0033_reference_type;.rs
new file mode 100644
index 000000000..3ac0badab
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0033_reference_type;.rs
@@ -0,0 +1,3 @@
+type A = &();
+type B = &'static ();
+type C = &mut ();
diff --git a/crates/syntax/test_data/parser/inline/ok/0034_break_expr.rast b/crates/syntax/test_data/parser/inline/ok/0034_break_expr.rast
new file mode 100644
index 000000000..f905def6f
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0034_break_expr.rast
@@ -0,0 +1,53 @@
+[email protected]
+  [email protected]
+    [email protected] "fn"
+    [email protected] " "
+    [email protected]
+      [email protected] "foo"
+    [email protected]
+      [email protected] "("
+      [email protected] ")"
+    [email protected] " "
+    [email protected]
+      [email protected] "{"
+      [email protected] "\n    "
+      [email protected]
+        [email protected] "loop"
+        [email protected] " "
+        [email protected]
+          [email protected] "{"
+          [email protected] "\n        "
+          [email protected]
+            [email protected]
+              [email protected] "break"
+            [email protected] ";"
+          [email protected] "\n        "
+          [email protected]
+            [email protected]
+              [email protected] "break"
+              [email protected] " "
+              [email protected] "\'l"
+            [email protected] ";"
+          [email protected] "\n        "
+          [email protected]
+            [email protected]
+              [email protected] "break"
+              [email protected] " "
+              [email protected]
+                [email protected] "92"
+            [email protected] ";"
+          [email protected] "\n        "
+          [email protected]
+            [email protected]
+              [email protected] "break"
+              [email protected] " "
+              [email protected] "\'l"
+              [email protected] " "
+              [email protected]
+                [email protected] "92"
+            [email protected] ";"
+          [email protected] "\n    "
+          [email protected] "}"
+      [email protected] "\n"
+      [email protected] "}"
+  [email protected] "\n"
diff --git a/crates/syntax/test_data/parser/inline/ok/0034_break_expr.rs b/crates/syntax/test_data/parser/inline/ok/0034_break_expr.rs
new file mode 100644
index 000000000..1b4094636
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0034_break_expr.rs
@@ -0,0 +1,8 @@
+fn foo() {
+    loop {
+        break;
+        break 'l;
+        break 92;
+        break 'l 92;
+    }
+}
diff --git a/crates/syntax/test_data/parser/inline/ok/0037_qual_paths.rast b/crates/syntax/test_data/parser/inline/ok/0037_qual_paths.rast
new file mode 100644
index 000000000..b6379e62f
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0037_qual_paths.rast
@@ -0,0 +1,78 @@
+[email protected]
+  [email protected]
+    [email protected] "type"
+    [email protected] " "
+    [email protected]
+      [email protected] "X"
+    [email protected] " "
+    [email protected] "="
+    [email protected] " "
+    [email protected]
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected] "<"
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected]
+                    [email protected] "A"
+            [email protected] " "
+            [email protected] "as"
+            [email protected] " "
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected]
+                    [email protected] "B"
+            [email protected] ">"
+        [email protected] "::"
+        [email protected]
+          [email protected]
+            [email protected] "Output"
+    [email protected] ";"
+  [email protected] "\n"
+  [email protected]
+    [email protected] "fn"
+    [email protected] " "
+    [email protected]
+      [email protected] "foo"
+    [email protected]
+      [email protected] "("
+      [email protected] ")"
+    [email protected] " "
+    [email protected]
+      [email protected] "{"
+      [email protected] " "
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected] "<"
+                  [email protected]
+                    [email protected]
+                      [email protected]
+                        [email protected]
+                          [email protected] "usize"
+                  [email protected] " "
+                  [email protected] "as"
+                  [email protected] " "
+                  [email protected]
+                    [email protected]
+                      [email protected]
+                        [email protected]
+                          [email protected] "Default"
+                  [email protected] ">"
+              [email protected] "::"
+              [email protected]
+                [email protected]
+                  [email protected] "default"
+          [email protected]
+            [email protected] "("
+            [email protected] ")"
+        [email protected] ";"
+      [email protected] " "
+      [email protected] "}"
+  [email protected] "\n"
diff --git a/crates/syntax/test_data/parser/inline/ok/0037_qual_paths.rs b/crates/syntax/test_data/parser/inline/ok/0037_qual_paths.rs
new file mode 100644
index 000000000..d140692e2
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0037_qual_paths.rs
@@ -0,0 +1,2 @@
+type X = <A as B>::Output;
+fn foo() { <usize as Default>::default(); }
diff --git a/crates/syntax/test_data/parser/inline/ok/0038_full_range_expr.rast b/crates/syntax/test_data/parser/inline/ok/0038_full_range_expr.rast
new file mode 100644
index 000000000..64e705fb3
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0038_full_range_expr.rast
@@ -0,0 +1,28 @@
+[email protected]
+  [email protected]
+    [email protected] "fn"
+    [email protected] " "
+    [email protected]
+      [email protected] "foo"
+    [email protected]
+      [email protected] "("
+      [email protected] ")"
+    [email protected] " "
+    [email protected]
+      [email protected] "{"
+      [email protected] " "
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected] "xs"
+          [email protected] "["
+          [email protected]
+            [email protected] ".."
+          [email protected] "]"
+        [email protected] ";"
+      [email protected] " "
+      [email protected] "}"
+  [email protected] "\n"
diff --git a/crates/syntax/test_data/parser/inline/ok/0038_full_range_expr.rs b/crates/syntax/test_data/parser/inline/ok/0038_full_range_expr.rs
new file mode 100644
index 000000000..ae21ad94c
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0038_full_range_expr.rs
@@ -0,0 +1 @@
+fn foo() { xs[..]; }
diff --git a/crates/syntax/test_data/parser/inline/ok/0039_type_arg.rast b/crates/syntax/test_data/parser/inline/ok/0039_type_arg.rast
new file mode 100644
index 000000000..69e98b9d6
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0039_type_arg.rast
@@ -0,0 +1,55 @@
+[email protected]
+  [email protected]
+    [email protected] "type"
+    [email protected] " "
+    [email protected]
+      [email protected] "A"
+    [email protected] " "
+    [email protected] "="
+    [email protected] " "
+    [email protected]
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected] "B"
+          [email protected]
+            [email protected] "<"
+            [email protected]
+              [email protected] "\'static"
+            [email protected] ","
+            [email protected] " "
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected]
+                    [email protected]
+                      [email protected] "i32"
+            [email protected] ","
+            [email protected] " "
+            [email protected]
+              [email protected]
+                [email protected] "1"
+            [email protected] ","
+            [email protected] " "
+            [email protected]
+              [email protected]
+                [email protected] "{"
+                [email protected] " "
+                [email protected]
+                  [email protected] "2"
+                [email protected] " "
+                [email protected] "}"
+            [email protected] ","
+            [email protected] " "
+            [email protected]
+              [email protected]
+                [email protected] "Item"
+              [email protected] "="
+              [email protected]
+                [email protected]
+                  [email protected]
+                    [email protected]
+                      [email protected] "u64"
+            [email protected] ">"
+    [email protected] ";"
+  [email protected] "\n"
diff --git a/crates/syntax/test_data/parser/inline/ok/0039_type_arg.rs b/crates/syntax/test_data/parser/inline/ok/0039_type_arg.rs
new file mode 100644
index 000000000..0d07d7651
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0039_type_arg.rs
@@ -0,0 +1 @@
+type A = B<'static, i32, 1, { 2 }, Item=u64>;
diff --git a/crates/syntax/test_data/parser/inline/ok/0040_crate_keyword_vis.rast b/crates/syntax/test_data/parser/inline/ok/0040_crate_keyword_vis.rast
new file mode 100644
index 000000000..db5bd2849
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0040_crate_keyword_vis.rast
@@ -0,0 +1,62 @@
+[email protected]
+  [email protected]
+    [email protected]
+      [email protected] "crate"
+    [email protected] " "
+    [email protected] "fn"
+    [email protected] " "
+    [email protected]
+      [email protected] "main"
+    [email protected]
+      [email protected] "("
+      [email protected] ")"
+    [email protected] " "
+    [email protected]
+      [email protected] "{"
+      [email protected] " "
+      [email protected] "}"
+  [email protected] "\n"
+  [email protected]
+    [email protected] "struct"
+    [email protected] " "
+    [email protected]
+      [email protected] "S"
+    [email protected] " "
+    [email protected]
+      [email protected] "{"
+      [email protected] " "
+      [email protected]
+        [email protected]
+          [email protected] "crate"
+        [email protected] " "
+        [email protected]
+          [email protected] "field"
+        [email protected] ":"
+        [email protected] " "
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected] "u32"
+      [email protected] " "
+      [email protected] "}"
+  [email protected] "\n"
+  [email protected]
+    [email protected] "struct"
+    [email protected] " "
+    [email protected]
+      [email protected] "T"
+    [email protected]
+      [email protected] "("
+      [email protected]
+        [email protected]
+          [email protected] "crate"
+        [email protected] " "
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected] "u32"
+      [email protected] ")"
+    [email protected] ";"
+  [email protected] "\n"
diff --git a/crates/syntax/test_data/parser/inline/ok/0040_crate_keyword_vis.rs b/crates/syntax/test_data/parser/inline/ok/0040_crate_keyword_vis.rs
new file mode 100644
index 000000000..e2b5f2161
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0040_crate_keyword_vis.rs
@@ -0,0 +1,3 @@
+crate fn main() { }
+struct S { crate field: u32 }
+struct T(crate u32);
diff --git a/crates/syntax/test_data/parser/inline/ok/0041_trait_item.rast b/crates/syntax/test_data/parser/inline/ok/0041_trait_item.rast
new file mode 100644
index 000000000..3638462f8
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0041_trait_item.rast
@@ -0,0 +1,125 @@
+[email protected]
+  [email protected]
+    [email protected] "trait"
+    [email protected] " "
+    [email protected]
+      [email protected] "T"
+    [email protected]
+      [email protected] "<"
+      [email protected]
+        [email protected]
+          [email protected] "U"
+      [email protected] ">"
+    [email protected] ":"
+    [email protected] " "
+    [email protected]
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected] "Hash"
+      [email protected] " "
+      [email protected] "+"
+      [email protected] " "
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected] "Clone"
+    [email protected] " "
+    [email protected]
+      [email protected] "where"
+      [email protected] " "
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected] "U"
+        [email protected] ":"
+        [email protected] " "
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected]
+                    [email protected] "Copy"
+    [email protected] " "
+    [email protected]
+      [email protected] "{"
+      [email protected] "}"
+  [email protected] "\n"
+  [email protected]
+    [email protected] "trait"
+    [email protected] " "
+    [email protected]
+      [email protected] "X"
+    [email protected]
+      [email protected] "<"
+      [email protected]
+        [email protected]
+          [email protected] "U"
+        [email protected] ":"
+        [email protected] " "
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected]
+                    [email protected] "Debug"
+          [email protected] " "
+          [email protected] "+"
+          [email protected] " "
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected]
+                    [email protected] "Display"
+      [email protected] ">"
+    [email protected] ":"
+    [email protected] " "
+    [email protected]
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected] "Hash"
+      [email protected] " "
+      [email protected] "+"
+      [email protected] " "
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected] "Clone"
+    [email protected] " "
+    [email protected]
+      [email protected] "where"
+      [email protected] " "
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected] "U"
+        [email protected] ":"
+        [email protected] " "
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected]
+                    [email protected] "Copy"
+    [email protected] " "
+    [email protected]
+      [email protected] "{"
+      [email protected] "}"
+  [email protected] "\n"
diff --git a/crates/syntax/test_data/parser/inline/ok/0041_trait_item.rs b/crates/syntax/test_data/parser/inline/ok/0041_trait_item.rs
new file mode 100644
index 000000000..32761dd03
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0041_trait_item.rs
@@ -0,0 +1,2 @@
+trait T<U>: Hash + Clone where U: Copy {}
+trait X<U: Debug + Display>: Hash + Clone where U: Copy {}
diff --git a/crates/syntax/test_data/parser/inline/ok/0042_call_expr.rast b/crates/syntax/test_data/parser/inline/ok/0042_call_expr.rast
new file mode 100644
index 000000000..fa38e9466
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0042_call_expr.rast
@@ -0,0 +1,147 @@
+[email protected]
+  [email protected]
+    [email protected] "fn"
+    [email protected] " "
+    [email protected]
+      [email protected] "foo"
+    [email protected]
+      [email protected] "("
+      [email protected] ")"
+    [email protected] " "
+    [email protected]
+      [email protected] "{"
+      [email protected] "\n    "
+      [email protected]
+        [email protected] "let"
+        [email protected] " "
+        [email protected]
+          [email protected] "_"
+        [email protected] " "
+        [email protected] "="
+        [email protected] " "
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected] "f"
+          [email protected]
+            [email protected] "("
+            [email protected] ")"
+        [email protected] ";"
+      [email protected] "\n    "
+      [email protected]
+        [email protected] "let"
+        [email protected] " "
+        [email protected]
+          [email protected] "_"
+        [email protected] " "
+        [email protected] "="
+        [email protected] " "
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected]
+                    [email protected]
+                      [email protected] "f"
+              [email protected]
+                [email protected] "("
+                [email protected] ")"
+            [email protected]
+              [email protected] "("
+              [email protected]
+                [email protected] "1"
+              [email protected] ")"
+          [email protected]
+            [email protected] "("
+            [email protected]
+              [email protected] "1"
+            [email protected] ","
+            [email protected] " "
+            [email protected]
+              [email protected] "2"
+            [email protected] ","
+            [email protected] ")"
+        [email protected] ";"
+      [email protected] "\n    "
+      [email protected]
+        [email protected] "let"
+        [email protected] " "
+        [email protected]
+          [email protected] "_"
+        [email protected] " "
+        [email protected] "="
+        [email protected] " "
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected] "f"
+          [email protected]
+            [email protected] "("
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected]
+                    [email protected]
+                      [email protected] "<"
+                      [email protected]
+                        [email protected]
+                          [email protected]
+                            [email protected]
+                              [email protected] "Foo"
+                      [email protected] ">"
+                  [email protected] "::"
+                  [email protected]
+                    [email protected]
+                      [email protected] "func"
+              [email protected]
+                [email protected] "("
+                [email protected] ")"
+            [email protected] ")"
+        [email protected] ";"
+      [email protected] "\n    "
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected] "f"
+          [email protected]
+            [email protected] "("
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected]
+                    [email protected]
+                      [email protected] "<"
+                      [email protected]
+                        [email protected]
+                          [email protected]
+                            [email protected]
+                              [email protected] "Foo"
+                      [email protected] " "
+                      [email protected] "as"
+                      [email protected] " "
+                      [email protected]
+                        [email protected]
+                          [email protected]
+                            [email protected]
+                              [email protected] "Trait"
+                      [email protected] ">"
+                  [email protected] "::"
+                  [email protected]
+                    [email protected]
+                      [email protected] "func"
+              [email protected]
+                [email protected] "("
+                [email protected] ")"
+            [email protected] ")"
+        [email protected] ";"
+      [email protected] "\n"
+      [email protected] "}"
+  [email protected] "\n"
diff --git a/crates/syntax/test_data/parser/inline/ok/0042_call_expr.rs b/crates/syntax/test_data/parser/inline/ok/0042_call_expr.rs
new file mode 100644
index 000000000..ffbf46d6d
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0042_call_expr.rs
@@ -0,0 +1,6 @@
+fn foo() {
+    let _ = f();
+    let _ = f()(1)(1, 2,);
+    let _ = f(<Foo>::func());
+    f(<Foo as Trait>::func());
+}
diff --git a/crates/syntax/test_data/parser/inline/ok/0043_use_alias.rast b/crates/syntax/test_data/parser/inline/ok/0043_use_alias.rast
new file mode 100644
index 000000000..60b517230
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0043_use_alias.rast
@@ -0,0 +1,138 @@
+[email protected]
+  [email protected]
+    [email protected] "use"
+    [email protected] " "
+    [email protected]
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected] "some"
+        [email protected] "::"
+        [email protected]
+          [email protected]
+            [email protected] "path"
+      [email protected] " "
+      [email protected]
+        [email protected] "as"
+        [email protected] " "
+        [email protected]
+          [email protected] "some_name"
+    [email protected] ";"
+  [email protected] "\n"
+  [email protected]
+    [email protected] "use"
+    [email protected] " "
+    [email protected]
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected] "some"
+      [email protected] "::"
+      [email protected]
+        [email protected] "{"
+        [email protected] "\n "
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected] "other"
+            [email protected] "::"
+            [email protected]
+              [email protected]
+                [email protected] "path"
+          [email protected] " "
+          [email protected]
+            [email protected] "as"
+            [email protected] " "
+            [email protected]
+              [email protected] "some_other_name"
+        [email protected] ","
+        [email protected] "\n "
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected] "different"
+            [email protected] "::"
+            [email protected]
+              [email protected]
+                [email protected] "path"
+          [email protected] " "
+          [email protected]
+            [email protected] "as"
+            [email protected] " "
+            [email protected]
+              [email protected] "different_name"
+        [email protected] ","
+        [email protected] "\n "
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected]
+                    [email protected] "yet"
+              [email protected] "::"
+              [email protected]
+                [email protected]
+                  [email protected] "another"
+            [email protected] "::"
+            [email protected]
+              [email protected]
+                [email protected] "path"
+        [email protected] ","
+        [email protected] "\n "
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected]
+                    [email protected]
+                      [email protected]
+                        [email protected]
+                          [email protected] "running"
+                    [email protected] "::"
+                    [email protected]
+                      [email protected]
+                        [email protected] "out"
+                  [email protected] "::"
+                  [email protected]
+                    [email protected]
+                      [email protected] "of"
+                [email protected] "::"
+                [email protected]
+                  [email protected]
+                    [email protected] "synonyms"
+              [email protected] "::"
+              [email protected]
+                [email protected]
+                  [email protected] "for_"
+            [email protected] "::"
+            [email protected]
+              [email protected]
+                [email protected] "different"
+          [email protected] "::"
+          [email protected] "*"
+        [email protected] "\n"
+        [email protected] "}"
+    [email protected] ";"
+  [email protected] "\n"
+  [email protected]
+    [email protected] "use"
+    [email protected] " "
+    [email protected]
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected] "Trait"
+      [email protected] " "
+      [email protected]
+        [email protected] "as"
+        [email protected] " "
+        [email protected] "_"
+    [email protected] ";"
+  [email protected] "\n"
diff --git a/crates/syntax/test_data/parser/inline/ok/0043_use_alias.rs b/crates/syntax/test_data/parser/inline/ok/0043_use_alias.rs
new file mode 100644
index 000000000..9be50f877
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0043_use_alias.rs
@@ -0,0 +1,8 @@
+use some::path as some_name;
+use some::{
+ other::path as some_other_name,
+ different::path as different_name,
+ yet::another::path,
+ running::out::of::synonyms::for_::different::*
+};
+use Trait as _;
diff --git a/crates/syntax/test_data/parser/inline/ok/0044_block_items.rast b/crates/syntax/test_data/parser/inline/ok/0044_block_items.rast
new file mode 100644
index 000000000..1fd3cd0e7
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0044_block_items.rast
@@ -0,0 +1,28 @@
+[email protected]
+  [email protected]
+    [email protected] "fn"
+    [email protected] " "
+    [email protected]
+      [email protected] "a"
+    [email protected]
+      [email protected] "("
+      [email protected] ")"
+    [email protected] " "
+    [email protected]
+      [email protected] "{"
+      [email protected] " "
+      [email protected]
+        [email protected] "fn"
+        [email protected] " "
+        [email protected]
+          [email protected] "b"
+        [email protected]
+          [email protected] "("
+          [email protected] ")"
+        [email protected] " "
+        [email protected]
+          [email protected] "{"
+          [email protected] "}"
+      [email protected] " "
+      [email protected] "}"
+  [email protected] "\n"
diff --git a/crates/syntax/test_data/parser/inline/ok/0044_block_items.rs b/crates/syntax/test_data/parser/inline/ok/0044_block_items.rs
new file mode 100644
index 000000000..d9868718c
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0044_block_items.rs
@@ -0,0 +1 @@
+fn a() { fn b() {} }
diff --git a/crates/syntax/test_data/parser/inline/ok/0045_param_list_opt_patterns.rast b/crates/syntax/test_data/parser/inline/ok/0045_param_list_opt_patterns.rast
new file mode 100644
index 000000000..6baea6e3c
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0045_param_list_opt_patterns.rast
@@ -0,0 +1,46 @@
+[email protected]
+  [email protected]
+    [email protected] "fn"
+    [email protected] " "
+    [email protected]
+      [email protected] "foo"
+    [email protected]
+      [email protected] "<"
+      [email protected]
+        [email protected]
+          [email protected] "F"
+        [email protected] ":"
+        [email protected] " "
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected]
+                [email protected]
+                  [email protected]
+                    [email protected] "FnMut"
+                  [email protected]
+                    [email protected] "("
+                    [email protected]
+                      [email protected]
+                        [email protected] "&"
+                        [email protected] "mut"
+                        [email protected] " "
+                        [email protected]
+                          [email protected]
+                            [email protected]
+                              [email protected]
+                                [email protected] "Foo"
+                              [email protected]
+                                [email protected] "<"
+                                [email protected]
+                                  [email protected] "\'a"
+                                [email protected] ">"
+                    [email protected] ")"
+      [email protected] ">"
+    [email protected]
+      [email protected] "("
+      [email protected] ")"
+    [email protected]
+      [email protected] "{"
+      [email protected] "}"
+  [email protected] "\n"
diff --git a/crates/syntax/test_data/parser/inline/ok/0045_param_list_opt_patterns.rs b/crates/syntax/test_data/parser/inline/ok/0045_param_list_opt_patterns.rs
new file mode 100644
index 000000000..9b93442c0
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0045_param_list_opt_patterns.rs
@@ -0,0 +1 @@
+fn foo<F: FnMut(&mut Foo<'a>)>(){}
diff --git a/crates/syntax/test_data/parser/inline/ok/0046_singleton_tuple_type.rast b/crates/syntax/test_data/parser/inline/ok/0046_singleton_tuple_type.rast
new file mode 100644
index 000000000..e89284c14
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0046_singleton_tuple_type.rast
@@ -0,0 +1,20 @@
+[email protected]
+  [email protected]
+    [email protected] "type"
+    [email protected] " "
+    [email protected]
+      [email protected] "T"
+    [email protected] " "
+    [email protected] "="
+    [email protected] " "
+    [email protected]
+      [email protected] "("
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected] "i32"
+      [email protected] ","
+      [email protected] ")"
+    [email protected] ";"
+  [email protected] "\n"
diff --git a/crates/syntax/test_data/parser/inline/ok/0046_singleton_tuple_type.rs b/crates/syntax/test_data/parser/inline/ok/0046_singleton_tuple_type.rs
new file mode 100644
index 000000000..cb66bad24
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0046_singleton_tuple_type.rs
@@ -0,0 +1 @@
+type T = (i32,);
diff --git a/crates/syntax/test_data/parser/inline/ok/0048_path_type_with_bounds.rast b/crates/syntax/test_data/parser/inline/ok/0048_path_type_with_bounds.rast
new file mode 100644
index 000000000..4d8404e7c
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0048_path_type_with_bounds.rast
@@ -0,0 +1,81 @@
+[email protected]
+  [email protected]
+    [email protected] "fn"
+    [email protected] " "
+    [email protected]
+      [email protected] "foo"
+    [email protected]
+      [email protected] "("
+      [email protected] ")"
+    [email protected] " "
+    [email protected]
+      [email protected] "->"
+      [email protected] " "
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected] "Box"
+            [email protected]
+              [email protected] "<"
+              [email protected]
+                [email protected]
+                  [email protected]
+                    [email protected]
+                      [email protected]
+                        [email protected]
+                          [email protected]
+                            [email protected]
+                              [email protected] "T"
+                    [email protected] " "
+                    [email protected] "+"
+                    [email protected] " "
+                    [email protected]
+                      [email protected] "\'f"
+              [email protected] ">"
+    [email protected] " "
+    [email protected]
+      [email protected] "{"
+      [email protected] "}"
+  [email protected] "\n"
+  [email protected]
+    [email protected] "fn"
+    [email protected] " "
+    [email protected]
+      [email protected] "foo"
+    [email protected]
+      [email protected] "("
+      [email protected] ")"
+    [email protected] " "
+    [email protected]
+      [email protected] "->"
+      [email protected] " "
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected]
+              [email protected] "Box"
+            [email protected]
+              [email protected] "<"
+              [email protected]
+                [email protected]
+                  [email protected] "dyn"
+                  [email protected] " "
+                  [email protected]
+                    [email protected]
+                      [email protected]
+                        [email protected]
+                          [email protected]
+                            [email protected]
+                              [email protected] "T"
+                    [email protected] " "
+                    [email protected] "+"
+                    [email protected] " "
+                    [email protected]
+                      [email protected] "\'f"
+              [email protected] ">"
+    [email protected] " "
+    [email protected]
+      [email protected] "{"
+      [email protected] "}"
+  [email protected] "\n"
diff --git a/crates/syntax/test_data/parser/inline/ok/0048_path_type_with_bounds.rs b/crates/syntax/test_data/parser/inline/ok/0048_path_type_with_bounds.rs
new file mode 100644
index 000000000..4bb0f63b7
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0048_path_type_with_bounds.rs
@@ -0,0 +1,2 @@
+fn foo() -> Box<T + 'f> {}
+fn foo() -> Box<dyn T + 'f> {}
diff --git a/crates/syntax/test_data/parser/inline/ok/0050_fn_decl.rast b/crates/syntax/test_data/parser/inline/ok/0050_fn_decl.rast
new file mode 100644
index 000000000..a5bf55131
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0050_fn_decl.rast
@@ -0,0 +1,22 @@
+[email protected]
+  [email protected]
+    [email protected] "trait"
+    [email protected] " "
+    [email protected]
+      [email protected] "T"
+    [email protected] " "
+    [email protected]
+      [email protected] "{"
+      [email protected] " "
+      [email protected]
+        [email protected] "fn"
+        [email protected] " "
+        [email protected]
+          [email protected] "foo"
+        [email protected]
+          [email protected] "("
+          [email protected] ")"
+        [email protected] ";"
+      [email protected] " "
+      [email protected] "}"
+  [email protected] "\n"
diff --git a/crates/syntax/test_data/parser/inline/ok/0050_fn_decl.rs b/crates/syntax/test_data/parser/inline/ok/0050_fn_decl.rs
new file mode 100644
index 000000000..c9f74f7f5
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0050_fn_decl.rs
@@ -0,0 +1 @@
+trait T { fn foo(); }
diff --git a/crates/syntax/test_data/parser/inline/ok/0051_unit_type.rast b/crates/syntax/test_data/parser/inline/ok/0051_unit_type.rast
new file mode 100644
index 000000000..6330dbf9e
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0051_unit_type.rast
@@ -0,0 +1,14 @@
+[email protected]
+  [email protected]
+    [email protected] "type"
+    [email protected] " "
+    [email protected]
+      [email protected] "T"
+    [email protected] " "
+    [email protected] "="
+    [email protected] " "
+    [email protected]
+      [email protected] "("
+      [email protected] ")"
+    [email protected] ";"
+  [email protected] "\n"
diff --git a/crates/syntax/test_data/parser/inline/ok/0051_unit_type.rs b/crates/syntax/test_data/parser/inline/ok/0051_unit_type.rs
new file mode 100644
index 000000000..c039cf7d3
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0051_unit_type.rs
@@ -0,0 +1 @@
+type T = ();
diff --git a/crates/syntax/test_data/parser/inline/ok/0052_path_type.rast b/crates/syntax/test_data/parser/inline/ok/0052_path_type.rast
new file mode 100644
index 000000000..9bc36bea7
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0052_path_type.rast
@@ -0,0 +1,70 @@
+[email protected]
+  [email protected]
+    [email protected] "type"
+    [email protected] " "
+    [email protected]
+      [email protected] "A"
+    [email protected] " "
+    [email protected] "="
+    [email protected] " "
+    [email protected]
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected] "Foo"
+    [email protected] ";"
+  [email protected] "\n"
+  [email protected]
+    [email protected] "type"
+    [email protected] " "
+    [email protected]
+      [email protected] "B"
+    [email protected] " "
+    [email protected] "="
+    [email protected] " "
+    [email protected]
+      [email protected]
+        [email protected]
+          [email protected] "::"
+          [email protected]
+            [email protected] "Foo"
+    [email protected] ";"
+  [email protected] "\n"
+  [email protected]
+    [email protected] "type"
+    [email protected] " "
+    [email protected]
+      [email protected] "C"
+    [email protected] " "
+    [email protected] "="
+    [email protected] " "
+    [email protected]
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected] "self"
+        [email protected] "::"
+        [email protected]
+          [email protected]
+            [email protected] "Foo"
+    [email protected] ";"
+  [email protected] "\n"
+  [email protected]
+    [email protected] "type"
+    [email protected] " "
+    [email protected]
+      [email protected] "D"
+    [email protected] " "
+    [email protected] "="
+    [email protected] " "
+    [email protected]
+      [email protected]
+        [email protected]
+          [email protected]
+            [email protected] "super"
+        [email protected] "::"
+        [email protected]
+          [email protected]
+            [email protected] "Foo"
+    [email protected] ";"
+  [email protected] "\n"
diff --git a/crates/syntax/test_data/parser/inline/ok/0052_path_type.rs b/crates/syntax/test_data/parser/inline/ok/0052_path_type.rs
new file mode 100644
index 000000000..bf94f32e1
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0052_path_type.rs
@@ -0,0 +1,4 @@
+type A = Foo;
+type B = ::Foo;
+type C = self::Foo;
+type D = super::Foo;
diff --git a/crates/syntax/test_data/parser/inline/ok/0053_path_expr.rast b/crates/syntax/test_data/parser/inline/ok/0053_path_expr.rast
new file mode 100644
index 000000000..c34cfeb31
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0053_path_expr.rast
@@ -0,0 +1,95 @@
+[email protected]
+  [email protected]
+    [email protected] "fn"
+    [email protected] " "
+    [email protected]