For @optional unimplemented methods do not issue the warning.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@44872 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/Sema/SemaDecl.cpp b/Sema/SemaDecl.cpp
index 0e3e728..8a67bbe 100644
--- a/Sema/SemaDecl.cpp
+++ b/Sema/SemaDecl.cpp
@@ -1532,7 +1532,8 @@
// check unimplemented instance methods.
ObjcMethodDecl** methods = PDecl->getInstanceMethods();
for (int j = 0; j < PDecl->getNumInstanceMethods(); j++) {
- if (!InsMap.count(methods[j]->getSelector())) {
+ if (!InsMap.count(methods[j]->getSelector()) &&
+ methods[j]->getImplementationControl() != ObjcMethodDecl::Optional) {
Diag(methods[j]->getLocation(), diag::warn_undef_method_impl,
methods[j]->getSelector().getName());
IncompleteImpl = true;
@@ -1541,7 +1542,8 @@
// check unimplemented class methods
methods = PDecl->getClassMethods();
for (int j = 0; j < PDecl->getNumClassMethods(); j++)
- if (!ClsMap.count(methods[j]->getSelector())) {
+ if (!ClsMap.count(methods[j]->getSelector()) &&
+ methods[j]->getImplementationControl() != ObjcMethodDecl::Optional) {
Diag(methods[j]->getLocation(), diag::warn_undef_method_impl,
methods[j]->getSelector().getName());
IncompleteImpl = true;