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desugar ? operator

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This commit is contained in:
hkalbasi 2023-03-08 20:58:52 +03:30
parent 924d277f32
commit b7b9ae59a0
27 changed files with 517 additions and 191 deletions
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9
crates/hir-def/src/path/lower.rs
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@ -75,8 +75,11 @@ pub(super) fn lower_path(mut path: ast::Path, ctx: &LowerCtx<'_>) -> Option<Path
}
// <T as Trait<A>>::Foo desugars to Trait<Self=T, A>::Foo
Some(trait_ref) => {
let Path { mod_path, generic_args: path_generic_args, .. } =
Path::from_src(trait_ref.path()?, ctx)?;
let Path::Normal { mod_path, generic_args: path_generic_args, .. } =
Path::from_src(trait_ref.path()?, ctx)? else
{
return None;
};
let num_segments = mod_path.segments().len();
kind = mod_path.kind;
@ -157,7 +160,7 @@ pub(super) fn lower_path(mut path: ast::Path, ctx: &LowerCtx<'_>) -> Option<Path
}
let mod_path = Interned::new(ModPath::from_segments(kind, segments));
return Some(Path {
return Some(Path::Normal {
type_anchor,
mod_path,
generic_args: if generic_args.is_empty() { None } else { Some(generic_args.into()) },