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Merge #7498

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7498: Clone for update r=matklad a=matklad

rowan counterpart https://github.com/rust-analyzer/rowan/pull/93

#6857

Co-authored-by: Aleksey Kladov <aleksey.kladov@gmail.com>
This commit is contained in:
bors[bot] 2021-03-16 13:14:48 +00:00 • committed by GitHub
commit c49b5b7468
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41 changed files with 376 additions and 176 deletions
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30
crates/hir/src/semantics.rs
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@ -143,6 +143,12 @@ impl<'db, DB: HirDatabase> Semantics<'db, DB> {
self.imp.diagnostics_display_range(diagnostics)
}
pub fn token_ancestors_with_macros(
&self,
token: SyntaxToken,
) -> impl Iterator<Item = SyntaxNode> + '_ {
token.parent().into_iter().flat_map(move |it| self.ancestors_with_macros(it))
}
pub fn ancestors_with_macros(&self, node: SyntaxNode) -> impl Iterator<Item = SyntaxNode> + '_ {
self.imp.ancestors_with_macros(node)
}
@ -270,8 +276,8 @@ impl<'db, DB: HirDatabase> Semantics<'db, DB> {
self.imp.scope(node)
}
pub fn scope_at_offset(&self, node: &SyntaxNode, offset: TextSize) -> SemanticsScope<'db> {
self.imp.scope_at_offset(node, offset)
pub fn scope_at_offset(&self, token: &SyntaxToken, offset: TextSize) -> SemanticsScope<'db> {
self.imp.scope_at_offset(&token.parent().unwrap(), offset)
}
pub fn scope_for_def(&self, def: Trait) -> SemanticsScope<'db> {
@ -341,7 +347,10 @@ impl<'db> SemanticsImpl<'db> {
fn descend_into_macros(&self, token: SyntaxToken) -> SyntaxToken {
let _p = profile::span("descend_into_macros");
let parent = token.parent();
let parent = match token.parent() {
Some(it) => it,
None => return token,
};
let sa = self.analyze(&parent);
let token = successors(Some(InFile::new(sa.file_id, token)), |token| {
@ -360,7 +369,9 @@ impl<'db> SemanticsImpl<'db> {
.as_ref()?
.map_token_down(token.as_ref())?;
self.cache(find_root(&token.value.parent()), token.file_id);
if let Some(parent) = token.value.parent() {
self.cache(find_root(&parent), token.file_id);
}
Some(token)
})
@ -378,7 +389,7 @@ impl<'db> SemanticsImpl<'db> {
// Handle macro token cases
node.token_at_offset(offset)
.map(|token| self.descend_into_macros(token))
.map(|it| self.ancestors_with_macros(it.parent()))
.map(|it| self.token_ancestors_with_macros(it))
.flatten()
}
@ -394,6 +405,13 @@ impl<'db> SemanticsImpl<'db> {
src.with_value(&node).original_file_range(self.db.upcast())
}
fn token_ancestors_with_macros(
&self,
token: SyntaxToken,
) -> impl Iterator<Item = SyntaxNode> + '_ {
token.parent().into_iter().flat_map(move |parent| self.ancestors_with_macros(parent))
}
fn ancestors_with_macros(&self, node: SyntaxNode) -> impl Iterator<Item = SyntaxNode> + '_ {
let node = self.find_file(node);
node.ancestors_with_macros(self.db.upcast()).map(|it| it.value)
@ -405,7 +423,7 @@ impl<'db> SemanticsImpl<'db> {
offset: TextSize,
) -> impl Iterator<Item = SyntaxNode> + '_ {
node.token_at_offset(offset)
.map(|token| self.ancestors_with_macros(token.parent()))
.map(|token| self.token_ancestors_with_macros(token))
.kmerge_by(|node1, node2| node1.text_range().len() < node2.text_range().len())
}