================
@@ -460,29 +460,80 @@ class ASTWalker : public RecursiveASTVisitor<ASTWalker> {
return true;
}
- bool VisitObjCMessageExpr(ObjCMessageExpr *E) {
- auto StartLoc = E->getSelectorStartLoc();
- // Identify the selector and the method declaration
- if (auto *Method = E->getMethodDecl()) {
- // Report the method as a used symbol
- report(StartLoc, Method);
+ /// Determines whether a protocol is already covered by the receiver's type,
+ /// either through adopted protocol qualifiers (e.g. `id<Proto>` or an
+ /// inheriting sub-protocol) or through class conformance on the receiver
+ /// interface (e.g. `MyClass <Proto>`).
+ bool IsProtocolCoveredByReceiver(ObjCProtocolDecl *Proto,
+ const ObjCObjectPointerType *ObjCPtr,
+ ObjCInterfaceDecl *IFace) {
+ if (ObjCPtr) {
+ ASTContext &Ctx = Proto->getASTContext();
+ for (auto *ReceiverProto : ObjCPtr->quals())
+ if (Ctx.ProtocolCompatibleWithProtocol(Proto, ReceiverProto))
+ return true;
}
+ return IFace && IFace->ClassImplementsProtocol(Proto, true);
----------------
nico wrote:
Please insert a `/*lookupCategory=*/` in front of the `true` (without a space).
Else the `true` is pretty mysterious.
https://github.com/llvm/llvm-project/pull/216857
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