Rollup merge of #99728 - cjgillot:ast-lifetimes-anon-clean, r=petrochenkov

Clean up HIR-based lifetime resolution

Based on https://github.com/rust-lang/rust/pull/97313.

Fixes #98932.

r? `@petrochenkov`
This commit is contained in:
Guillaume Gomez 2022-07-27 17:55:07 +02:00 committed by GitHub
commit c31637e082
3 changed files with 3 additions and 3 deletions

View file

@ -615,7 +615,7 @@ struct BodyLifetimeChecker {
impl<'tcx> Visitor<'tcx> for BodyLifetimeChecker {
// for lifetimes as parameters of generics
fn visit_lifetime(&mut self, lifetime: &'tcx Lifetime) {
if lifetime.name.ident().name != kw::Empty && lifetime.name.ident().name != kw::StaticLifetime {
if lifetime.name.ident().name != kw::UnderscoreLifetime && lifetime.name.ident().name != kw::StaticLifetime {
self.lifetimes_used_in_body = true;
}
}

View file

@ -166,7 +166,7 @@ fn captures_all_lifetimes(inputs: &[Ty<'_>], output_lifetimes: &[LifetimeName])
// - There's only one output lifetime bound using `+ '_`
// - All input lifetimes are explicitly bound to the output
input_lifetimes.is_empty()
|| (output_lifetimes.len() == 1 && matches!(output_lifetimes[0], LifetimeName::Underscore))
|| (output_lifetimes.len() == 1 && matches!(output_lifetimes[0], LifetimeName::Infer))
|| input_lifetimes
.iter()
.all(|in_lt| output_lifetimes.iter().any(|out_lt| in_lt == out_lt))

View file

@ -351,7 +351,7 @@ impl fmt::Display for RefPrefix {
name.fmt(f)?;
f.write_char(' ')?;
},
LifetimeName::Underscore => f.write_str("'_ ")?,
LifetimeName::Infer => f.write_str("'_ ")?,
LifetimeName::Static => f.write_str("'static ")?,
_ => (),
}