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Rollup merge of #86103 - camsteffen:lifetime-hack, r=jackh726

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Remove lifetime hack

It compiles without the hack. But I don't know why. I can't get the example in the referenced issue to compile...
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Yuki Okushi 2021-06-08 13:26:38 +09:00 • committed by GitHub
commit b7fadfddcb
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1 changed files with 1 additions and 9 deletions
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10
compiler/rustc_resolve/src/late/lifetimes.rs
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@ -1841,14 +1841,6 @@ fn object_lifetime_defaults_for_item(
}
impl<'a, 'tcx> LifetimeContext<'a, 'tcx> {
// FIXME(#37666) this works around a limitation in the region inferencer
fn hack<F>(&mut self, f: F)
where
F: for<'b> FnOnce(&mut LifetimeContext<'b, 'tcx>),
{
f(self)
}
fn with<F>(&mut self, wrap_scope: Scope<'_>, f: F)
where
F: for<'b> FnOnce(ScopeRef<'_>, &mut LifetimeContext<'b, 'tcx>),
@ -2252,7 +2244,7 @@ impl<'a, 'tcx> LifetimeContext<'a, 'tcx> {
};
self.with(scope, move |old_scope, this| {
this.check_lifetime_params(old_scope, &generics.params);
this.hack(walk); // FIXME(#37666) workaround in place of `walk(this)`
walk(this);
});
}