Translating the AST LifetimeType to the HIR LifetimeType causes a warning:
warning: ‘ltt’ may be used uninitialized
Add a default clause to the switch statement calling gcc_unreachable.
This will suppress the warning and make sure that if the AST lifetime type
is invalid or a new unknown type we immediately know when lowering the AST.
---
gcc/rust/hir/rust-ast-lower-type.h | 2 ++
1 file changed, 2 insertions(+)
diff --git a/gcc/rust/hir/rust-ast-lower-type.h
b/gcc/rust/hir/rust-ast-lower-type.h
index 5e19850e8dd..568a806f98d 100644
--- a/gcc/rust/hir/rust-ast-lower-type.h
+++ b/gcc/rust/hir/rust-ast-lower-type.h
@@ -281,6 +281,8 @@ public:
case AST::Lifetime::LifetimeType::WILDCARD:
ltt = HIR::Lifetime::LifetimeType::WILDCARD;
break;
+ default:
+ gcc_unreachable ();
}
HIR::Lifetime lt (mapping, ltt, param.get_lifetime ().get_lifetime_name (),
--
2.32.0
--
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