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handle #[cfg]s on generic parameters

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This commit is contained in:
Max Heller 2023-07-27 21:17:10 -04:00
parent b64e5b3919
commit 008b639ef5
3 changed files with 65 additions and 4 deletions
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35
crates/hir-def/src/item_tree/lower.rs
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@ -605,6 +605,41 @@ impl<'a> Ctx<'a> {
generics.fill(&self.body_ctx, node);
generics.shrink_to_fit();
if let Some(params) = node.generic_param_list() {
let params_by_name: FxHashMap<_, _> = params
.generic_params()
.filter_map(|param| {
let name = match &param {
ast::GenericParam::ConstParam(param) => param.name()?.as_name(),
ast::GenericParam::LifetimeParam(param) => {
Name::new_lifetime(&param.lifetime()?)
}
ast::GenericParam::TypeParam(param) => param.name()?.as_name(),
};
Some((name, param))
})
.collect();
for (idx, param) in generics.type_or_consts.iter() {
if let Some(name) = param.name() {
if let Some(param) = params_by_name.get(name) {
self.add_attrs(
idx.into(),
RawAttrs::new(self.db.upcast(), param, self.hygiene()),
);
}
}
}
for (idx, param) in generics.lifetimes.iter() {
if let Some(param) = params_by_name.get(&param.name) {
self.add_attrs(
idx.into(),
RawAttrs::new(self.db.upcast(), param, self.hygiene()),
);
}
}
}
Interned::new(generics)
}