================
@@ -272,6 +273,26 @@ QualType ObjCMessageExpr::getCallReturnType(ASTContext
&Ctx) const {
return Ctx.getReferenceQualifiedType(this);
}
+std::pair<const NamedDecl *, const Attr *>
+ObjCMessageExpr::getUnusedResultAttr(ASTContext &Ctx) const {
+ // If the callee is marked nodiscard, return that attribute
+ if (const ObjCMethodDecl *MD = getMethodDecl())
+ if (const auto *A = MD->getAttr<WarnUnusedResultAttr>())
+ return {nullptr, A};
----------------
halbi2 wrote:
Yes, if this is changed to `return {MD, A}` then
SemaObjC/method-warn-unused-attribute.m fails with
```
ignoring return value of type 'fee' declared with 'warn_unused_result' attribute
```
instead of the expected
```
ignoring return value of function declared with 'warn_unused_result' attribute
```
https://github.com/llvm/llvm-project/pull/142541
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