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cleanup casts

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This commit is contained in:
Aleksey Kladov 2019-07-19 18:22:00 +03:00
parent 8718a47088
commit 5c594bcb48
6 changed files with 975 additions and 850 deletions
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14
crates/ra_hir/src/source_binder.rs
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@ -309,15 +309,11 @@ impl SourceAnalyzer {
crate::Resolution::LocalBinding(it) => {
// We get a `PatId` from resolver, but it actually can only
// point at `BindPat`, and not at the arbitrary pattern.
let pat_ptr = self.body_source_map.as_ref()?.pat_syntax(it)?;
let pat_ptr = match pat_ptr {
Either::A(pat) => {
let pat: AstPtr<ast::BindPat> =
pat.cast_checking_kind(|kind| kind == BIND_PAT).unwrap();
Either::A(pat)
}
Either::B(self_param) => Either::B(self_param),
};
let pat_ptr = self
.body_source_map
.as_ref()?
.pat_syntax(it)?
.map_a(|ptr| ptr.cast::<ast::BindPat>().unwrap());
PathResolution::LocalBinding(pat_ptr)
}
crate::Resolution::GenericParam(it) => PathResolution::GenericParam(it),