Implements -Wundeclared-selector for ObjC.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@73495 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/SemaExprObjC.cpp b/lib/Sema/SemaExprObjC.cpp
index b6cf9d8..71033b4 100644
--- a/lib/Sema/SemaExprObjC.cpp
+++ b/lib/Sema/SemaExprObjC.cpp
@@ -130,6 +130,14 @@
SourceLocation SelLoc,
SourceLocation LParenLoc,
SourceLocation RParenLoc) {
+ ObjCMethodDecl *Method = LookupInstanceMethodInGlobalPool(Sel,
+ SourceRange(LParenLoc, RParenLoc));
+ if (!Method)
+ Method = LookupFactoryMethodInGlobalPool(Sel,
+ SourceRange(LParenLoc, RParenLoc));
+ if (!Method)
+ Diag(SelLoc, diag::warn_undeclared_selector) << Sel;
+
QualType Ty = Context.getObjCSelType();
return new (Context) ObjCSelectorExpr(Ty, Sel, AtLoc, RParenLoc);
}