bjoernager/rust
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rustc_metadata: Store a flag telling whether an item may have doc links in its attributes

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This should be cheap on rustc side, but it's significant optimization for rustdoc that won't need to decode and process attributes unnecessarily
This commit is contained in:
Vadim Petrochenkov 2022-04-16 23:49:37 +03:00
parent f5ca02c334
commit e2d3a4f631
9 changed files with 48 additions and 20 deletions
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5
compiler/rustc_ast/src/attr/mod.rs
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@ -9,6 +9,7 @@ use crate::token::{self, CommentKind, Token};
use crate::tokenstream::{AttrAnnotatedTokenStream, AttrAnnotatedTokenTree};
use crate::tokenstream::{DelimSpan, Spacing, TokenTree, TreeAndSpacing};
use crate::tokenstream::{LazyTokenStream, TokenStream};
use crate::util::comments;
use rustc_index::bit_set::GrowableBitSet;
use rustc_span::source_map::BytePos;
@ -262,6 +263,10 @@ impl Attribute {
}
}
pub fn may_have_doc_links(&self) -> bool {
self.doc_str().map_or(false, |s| comments::may_have_doc_links(s.as_str()))
}
pub fn get_normal_item(&self) -> &AttrItem {
match self.kind {
AttrKind::Normal(ref item, _) => item,