squiid/rust
1
0
Fork 0
Code Issues Pull requests Projects Activity

Rollup merge of #92188 - vacuus:nested-attributes-ext, r=jyn514

Browse source 
rustdoc: Clean up NestedAttributesExt trait/implementation
This commit is contained in:
Matthias Krüger 2022-01-05 11:26:04 +01:00 committed by GitHub
parent e35a4bd8d0 91fe2d0ed7
commit cc01433d56
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
1 changed files with 15 additions and 10 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

25
src/librustdoc/clean/types.rs
View file

@ -889,20 +889,25 @@ impl AttributesExt for [ast::Attribute] {
}
crate trait NestedAttributesExt {
/// Returns `true` if the attribute list contains a specific `Word`
fn has_word(self, word: Symbol) -> bool;
/// Returns `true` if the attribute list contains a specific `word`
fn has_word(self, word: Symbol) -> bool
where
Self: std::marker::Sized,
{
<Self as NestedAttributesExt>::get_word_attr(self, word).is_some()
}
/// Returns `Some(attr)` if the attribute list contains 'attr'
/// corresponding to a specific `word`
fn get_word_attr(self, word: Symbol) -> Option<ast::NestedMetaItem>;
}
impl<I: Iterator<Item = ast::NestedMetaItem> + IntoIterator<Item = ast::NestedMetaItem>>
NestedAttributesExt for I
impl<I> NestedAttributesExt for I
where
I: IntoIterator<Item = ast::NestedMetaItem>,
{
fn has_word(self, word: Symbol) -> bool {
self.into_iter().any(|attr| attr.is_word() && attr.has_name(word))
}
fn get_word_attr(mut self, word: Symbol) -> Option<ast::NestedMetaItem> {
self.find(|attr| attr.is_word() && attr.has_name(word))
fn get_word_attr(self, word: Symbol) -> Option<ast::NestedMetaItem> {
self.into_iter().find(|attr| attr.is_word() && attr.has_name(word))
}
}