Keep the error if the result is unused. rdar://
9552694.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135209
91177308-0d34-0410-b5e6-
96231b3b80d8
if (E->getReceiverKind() == ObjCMessageExpr::Instance)
if (Expr *rec = E->getInstanceReceiver()) {
rec = rec->IgnoreParenImpCasts();
- if (rec->getType().getObjCLifetime() == Qualifiers::OCL_ExplicitNone){
+ if (rec->getType().getObjCLifetime() == Qualifiers::OCL_ExplicitNone &&
+ (E->getMethodFamily() != OMF_retain || isRemovable(E))) {
std::string err = "it is not safe to remove '";
err += E->getSelector().getAsString() + "' message on "
"an __unsafe_unretained type";
void test1(A *a, BOOL b, struct UnsafeS *unsafeS) {
[unsafeS->unsafeObj retain]; // expected-error {{it is not safe to remove 'retain' message on an __unsafe_unretained type}} \
// expected-error {{ARC forbids explicit message send}}
+ id foo = [unsafeS->unsafeObj retain]; // no warning.
[a dealloc];
[a retain];
[a retainCount]; // expected-error {{ARC forbids explicit message send of 'retainCount'}}