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-rw-r--r--crates/ra_hir_expand/src/db.rs13
-rw-r--r--crates/ra_hir_expand/src/lib.rs12
2 files changed, 16 insertions, 9 deletions
diff --git a/crates/ra_hir_expand/src/db.rs b/crates/ra_hir_expand/src/db.rs
index 5eadee9c2..9de7c1ea8 100644
--- a/crates/ra_hir_expand/src/db.rs
+++ b/crates/ra_hir_expand/src/db.rs
@@ -32,10 +32,17 @@ impl TokenExpander {
32 } 32 }
33 } 33 }
34 34
35 pub fn shift(&self) -> u32 { 35 pub fn map_id_down(&self, id: tt::TokenId) -> tt::TokenId {
36 match self { 36 match self {
37 TokenExpander::MacroRules(it) => it.shift(), 37 TokenExpander::MacroRules(it) => it.map_id_down(id),
38 TokenExpander::Builtin(_) => 0, 38 TokenExpander::Builtin(..) => id,
39 }
40 }
41
42 pub fn map_id_up(&self, id: tt::TokenId) -> (tt::TokenId, mbe::Origin) {
43 match self {
44 TokenExpander::MacroRules(it) => it.map_id_up(id),
45 TokenExpander::Builtin(..) => (id, mbe::Origin::Def),
39 } 46 }
40 } 47 }
41} 48}
diff --git a/crates/ra_hir_expand/src/lib.rs b/crates/ra_hir_expand/src/lib.rs
index 1774cb58b..5927a03ba 100644
--- a/crates/ra_hir_expand/src/lib.rs
+++ b/crates/ra_hir_expand/src/lib.rs
@@ -161,7 +161,7 @@ impl ExpansionInfo {
161 pub fn translate_offset(&self, offset: TextUnit) -> Option<TextUnit> { 161 pub fn translate_offset(&self, offset: TextUnit) -> Option<TextUnit> {
162 let offset = offset.checked_sub(self.arg_start.1)?; 162 let offset = offset.checked_sub(self.arg_start.1)?;
163 let token_id = self.macro_arg.1.token_by_offset(offset)?; 163 let token_id = self.macro_arg.1.token_by_offset(offset)?;
164 let token_id = tt::TokenId(token_id.0 + self.macro_def.0.shift()); 164 let token_id = self.macro_def.0.map_id_down(token_id);
165 165
166 let (r, _) = self.exp_map.ranges.iter().find(|(_, tid)| *tid == token_id)?; 166 let (r, _) = self.exp_map.ranges.iter().find(|(_, tid)| *tid == token_id)?;
167 Some(r.start()) 167 Some(r.start())
@@ -170,11 +170,11 @@ impl ExpansionInfo {
170 pub fn find_range(&self, from: TextRange) -> Option<(HirFileId, TextRange)> { 170 pub fn find_range(&self, from: TextRange) -> Option<(HirFileId, TextRange)> {
171 let token_id = look_in_rev_map(&self.exp_map, from)?; 171 let token_id = look_in_rev_map(&self.exp_map, from)?;
172 172
173 let shift = self.macro_def.0.shift(); 173 let (token_id, origin) = self.macro_def.0.map_id_up(token_id);
174 let (token_map, (file_id, start_offset), token_id) = if token_id.0 >= shift { 174
175 (&self.macro_arg.1, self.arg_start, tt::TokenId(token_id.0 - shift).into()) 175 let (token_map, (file_id, start_offset)) = match origin {
176 } else { 176 mbe::Origin::Call => (&self.macro_arg.1, self.arg_start),
177 (&self.macro_def.1, self.def_start, token_id) 177 mbe::Origin::Def => (&self.macro_def.1, self.def_start),
178 }; 178 };
179 179
180 let range = token_map.relative_range_of(token_id)?; 180 let range = token_map.relative_range_of(token_id)?;