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Introduce Ty::Alias

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This commit is contained in:
Lukas Wirth 2021-03-01 14:24:00 +01:00
parent cda13d5461
commit 5d121cdb45
14 changed files with 109 additions and 98 deletions
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2
crates/hir_ty/src/traits.rs
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@ -129,7 +129,7 @@ pub(crate) fn trait_solve_query(
log::info!("trait_solve_query({})", goal.value.value.display(db));
if let Obligation::Projection(pred) = &goal.value.value {
if let Ty::Bound(_) = &pred.projection_ty.parameters[0] {
if let Ty::BoundVar(_) = &pred.projection_ty.parameters[0] {
// Hack: don't ask Chalk to normalize with an unknown self type, it'll say that's impossible
return Some(Solution::Ambig(Guidance::Unknown));
}