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Deal better with implicit type parameters and argument lists

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This commit is contained in:
Florian Diebold
2020-02-07 16:24:09 +01:00
parent dded90a748
commit 6c70619b01
4 changed files with 138 additions and 26 deletions
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7
crates/ra_hir_ty/src/utils.rs
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@@ -145,8 +145,9 @@ impl Generics {
(parent + child, parent, child)
}
/// (self, type param list, impl trait)
pub(crate) fn provenance_split(&self) -> (usize, usize, usize) {
/// (parent total, self param, type param list, impl trait)
pub(crate) fn provenance_split(&self) -> (usize, usize, usize, usize) {
let parent = self.parent_generics.as_ref().map_or(0, |p| p.len());
let self_params = self
.params
.types
@@ -165,7 +166,7 @@ impl Generics {
.iter()
.filter(|(_, p)| p.provenance == TypeParamProvenance::ArgumentImplTrait)
.count();
(self_params, list_params, impl_trait_params)
(parent, self_params, list_params, impl_trait_params)
}
pub(crate) fn param_idx(&self, param: TypeParamId) -> Option<u32> {