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authorAleksey Kladov <[email protected]>2021-01-30 15:19:21 +0000
committerAleksey Kladov <[email protected]>2021-03-16 13:10:49 +0000
commitf5a81ec4683613bd62624811733345d627f2127b (patch)
tree54490888591ddc005d510695787308b78739ef05 /crates/hir
parent62ec04bbd53ba50e21a7b8f23d46958d322640eb (diff)
Upgrade rowan
Notably, new rowan comes with support for mutable syntax trees.
Diffstat (limited to 'crates/hir')
-rw-r--r--crates/hir/src/semantics.rs30
1 files changed, 24 insertions, 6 deletions
diff --git a/crates/hir/src/semantics.rs b/crates/hir/src/semantics.rs
index 519339c0c..03c9371b5 100644
--- a/crates/hir/src/semantics.rs
+++ b/crates/hir/src/semantics.rs
@@ -143,6 +143,12 @@ impl<'db, DB: HirDatabase> Semantics<'db, DB> {
143 self.imp.diagnostics_display_range(diagnostics) 143 self.imp.diagnostics_display_range(diagnostics)
144 } 144 }
145 145
146 pub fn token_ancestors_with_macros(
147 &self,
148 token: SyntaxToken,
149 ) -> impl Iterator<Item = SyntaxNode> + '_ {
150 token.parent().into_iter().flat_map(move |it| self.ancestors_with_macros(it))
151 }
146 pub fn ancestors_with_macros(&self, node: SyntaxNode) -> impl Iterator<Item = SyntaxNode> + '_ { 152 pub fn ancestors_with_macros(&self, node: SyntaxNode) -> impl Iterator<Item = SyntaxNode> + '_ {
147 self.imp.ancestors_with_macros(node) 153 self.imp.ancestors_with_macros(node)
148 } 154 }
@@ -270,8 +276,8 @@ impl<'db, DB: HirDatabase> Semantics<'db, DB> {
270 self.imp.scope(node) 276 self.imp.scope(node)
271 } 277 }
272 278
273 pub fn scope_at_offset(&self, node: &SyntaxNode, offset: TextSize) -> SemanticsScope<'db> { 279 pub fn scope_at_offset(&self, token: &SyntaxToken, offset: TextSize) -> SemanticsScope<'db> {
274 self.imp.scope_at_offset(node, offset) 280 self.imp.scope_at_offset(&token.parent().unwrap(), offset)
275 } 281 }
276 282
277 pub fn scope_for_def(&self, def: Trait) -> SemanticsScope<'db> { 283 pub fn scope_for_def(&self, def: Trait) -> SemanticsScope<'db> {
@@ -341,7 +347,10 @@ impl<'db> SemanticsImpl<'db> {
341 347
342 fn descend_into_macros(&self, token: SyntaxToken) -> SyntaxToken { 348 fn descend_into_macros(&self, token: SyntaxToken) -> SyntaxToken {
343 let _p = profile::span("descend_into_macros"); 349 let _p = profile::span("descend_into_macros");
344 let parent = token.parent(); 350 let parent = match token.parent() {
351 Some(it) => it,
352 None => return token,
353 };
345 let sa = self.analyze(&parent); 354 let sa = self.analyze(&parent);
346 355
347 let token = successors(Some(InFile::new(sa.file_id, token)), |token| { 356 let token = successors(Some(InFile::new(sa.file_id, token)), |token| {
@@ -360,7 +369,9 @@ impl<'db> SemanticsImpl<'db> {
360 .as_ref()? 369 .as_ref()?
361 .map_token_down(token.as_ref())?; 370 .map_token_down(token.as_ref())?;
362 371
363 self.cache(find_root(&token.value.parent()), token.file_id); 372 if let Some(parent) = token.value.parent() {
373 self.cache(find_root(&parent), token.file_id);
374 }
364 375
365 Some(token) 376 Some(token)
366 }) 377 })
@@ -378,7 +389,7 @@ impl<'db> SemanticsImpl<'db> {
378 // Handle macro token cases 389 // Handle macro token cases
379 node.token_at_offset(offset) 390 node.token_at_offset(offset)
380 .map(|token| self.descend_into_macros(token)) 391 .map(|token| self.descend_into_macros(token))
381 .map(|it| self.ancestors_with_macros(it.parent())) 392 .map(|it| self.token_ancestors_with_macros(it))
382 .flatten() 393 .flatten()
383 } 394 }
384 395
@@ -394,6 +405,13 @@ impl<'db> SemanticsImpl<'db> {
394 src.with_value(&node).original_file_range(self.db.upcast()) 405 src.with_value(&node).original_file_range(self.db.upcast())
395 } 406 }
396 407
408 fn token_ancestors_with_macros(
409 &self,
410 token: SyntaxToken,
411 ) -> impl Iterator<Item = SyntaxNode> + '_ {
412 token.parent().into_iter().flat_map(move |parent| self.ancestors_with_macros(parent))
413 }
414
397 fn ancestors_with_macros(&self, node: SyntaxNode) -> impl Iterator<Item = SyntaxNode> + '_ { 415 fn ancestors_with_macros(&self, node: SyntaxNode) -> impl Iterator<Item = SyntaxNode> + '_ {
398 let node = self.find_file(node); 416 let node = self.find_file(node);
399 node.ancestors_with_macros(self.db.upcast()).map(|it| it.value) 417 node.ancestors_with_macros(self.db.upcast()).map(|it| it.value)
@@ -405,7 +423,7 @@ impl<'db> SemanticsImpl<'db> {
405 offset: TextSize, 423 offset: TextSize,
406 ) -> impl Iterator<Item = SyntaxNode> + '_ { 424 ) -> impl Iterator<Item = SyntaxNode> + '_ {
407 node.token_at_offset(offset) 425 node.token_at_offset(offset)
408 .map(|token| self.ancestors_with_macros(token.parent())) 426 .map(|token| self.token_ancestors_with_macros(token))
409 .kmerge_by(|node1, node2| node1.text_range().len() < node2.text_range().len()) 427 .kmerge_by(|node1, node2| node1.text_range().len() < node2.text_range().len())
410 } 428 }
411 429