================
@@ -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};
----------------
Sirraide wrote:
Specifically,
- `{null, Attribute}` means ‘the function is `nodiscard`’;
- `{TD, Attribute}` means ‘the type is `nodiscard`, please include `TD` in the
diagnostic;
- `{null, null}` means ‘not `nodiscard`’
I *thought* there was a comment about this somewhere, but if not should
probably add one
https://github.com/llvm/llvm-project/pull/142541
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