bjoernager/rust
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Restore closure-kind error messages

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This commit is contained in:
Michael Goulet 2023-11-21 04:20:18 +00:00
parent 93298ee0dd
commit 128feaa2b4
10 changed files with 136 additions and 70 deletions
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6
compiler/rustc_infer/src/infer/mod.rs
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@ -906,12 +906,14 @@ impl<'tcx> InferCtxt<'tcx> {
self.inner.borrow().undo_log.opaque_types_in_snapshot(&snapshot.undo_snapshot)
}
pub fn can_sub<T>(&self, param_env: ty::ParamEnv<'tcx>, a: T, b: T) -> bool
pub fn can_sub<T>(&self, param_env: ty::ParamEnv<'tcx>, expected: T, actual: T) -> bool
where
T: at::ToTrace<'tcx>,
{
let origin = &ObligationCause::dummy();
self.probe(|_| self.at(origin, param_env).sub(DefineOpaqueTypes::No, a, b).is_ok())
self.probe(|_| {
self.at(origin, param_env).sub(DefineOpaqueTypes::No, expected, actual).is_ok()
})
}
pub fn can_eq<T>(&self, param_env: ty::ParamEnv<'tcx>, a: T, b: T) -> bool