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-rw-r--r--crates/hir_ty/src/infer/coerce.rs10
1 files changed, 6 insertions, 4 deletions
diff --git a/crates/hir_ty/src/infer/coerce.rs b/crates/hir_ty/src/infer/coerce.rs
index fd679f444..26dc6ceba 100644
--- a/crates/hir_ty/src/infer/coerce.rs
+++ b/crates/hir_ty/src/infer/coerce.rs
@@ -71,12 +71,14 @@ impl<'a> InferenceContext<'a> {
71 } 71 }
72 72
73 // Pointer weakening and function to pointer 73 // Pointer weakening and function to pointer
74 match (from_ty.interned_mut(), to_ty.kind(&Interner)) { 74 match (from_ty.kind(&Interner), to_ty.kind(&Interner)) {
75 // `*mut T` -> `*const T` 75 // `*mut T` -> `*const T`
76 (TyKind::Raw(m1, inner), TyKind::Raw(m2 @ Mutability::Not, ..)) => {
77 from_ty = TyKind::Raw(*m2, inner.clone()).intern(&Interner);
78 }
76 // `&mut T` -> `&T` 79 // `&mut T` -> `&T`
77 (TyKind::Raw(m1, ..), TyKind::Raw(m2 @ Mutability::Not, ..)) 80 (TyKind::Ref(m1, lt, inner), TyKind::Ref(m2 @ Mutability::Not, ..)) => {
78 | (TyKind::Ref(m1, ..), TyKind::Ref(m2 @ Mutability::Not, ..)) => { 81 from_ty = TyKind::Ref(*m2, lt.clone(), inner.clone()).intern(&Interner);
79 *m1 = *m2;
80 } 82 }
81 // `&T` -> `*const T` 83 // `&T` -> `*const T`
82 // `&mut T` -> `*mut T`/`*const T` 84 // `&mut T` -> `*mut T`/`*const T`