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Diffstat (limited to 'crates/hir-ty/src/infer/coerce.rs')
| -rw-r--r-- | crates/hir-ty/src/infer/coerce.rs | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/crates/hir-ty/src/infer/coerce.rs b/crates/hir-ty/src/infer/coerce.rs index 366c3cb0f1..2fe90a8a92 100644 --- a/crates/hir-ty/src/infer/coerce.rs +++ b/crates/hir-ty/src/infer/coerce.rs @@ -125,7 +125,11 @@ impl CoerceMany { // pointers to have a chance at getting a match. See // https://github.com/rust-lang/rust/blob/7b805396bf46dce972692a6846ce2ad8481c5f85/src/librustc_typeck/check/coercion.rs#L877-L916 let sig = match (self.merged_ty().kind(Interner), expr_ty.kind(Interner)) { - (TyKind::FnDef(x, _), TyKind::FnDef(y, _)) if x == y => None, + (TyKind::FnDef(x, _), TyKind::FnDef(y, _)) + if x == y && ctx.table.unify(&self.merged_ty(), &expr_ty) => + { + None + } (TyKind::Closure(x, _), TyKind::Closure(y, _)) if x == y => None, (TyKind::FnDef(..) | TyKind::Closure(..), TyKind::FnDef(..) | TyKind::Closure(..)) => { // FIXME: we're ignoring safety here. To be more correct, if we have one FnDef and one Closure, |