return peelOffOuterExpr(EWC->getSubExpr(), N);
if (const OpaqueValueExpr *OVE = dyn_cast<OpaqueValueExpr>(Ex))
return peelOffOuterExpr(OVE->getSourceExpr(), N);
+ if (auto *POE = dyn_cast<PseudoObjectExpr>(Ex)) {
+ auto *PropRef = dyn_cast<ObjCPropertyRefExpr>(POE->getSyntacticForm());
+ if (PropRef && PropRef->isMessagingGetter()) {
+ return peelOffOuterExpr(POE->getSemanticExpr(1), N);
+ }
+ }
// Peel off the ternary operator.
if (const ConditionalOperator *CO = dyn_cast<ConditionalOperator>(Ex)) {
else
testNilReceiverHelperB([[x getObject] getPtr]);
}
+
+// FALSE NEGATIVES (over-suppression)
+
+__attribute__((objc_root_class))
+@interface SomeClass
+-(int *)methodReturningNull;
+
+@property(readonly) int *propertyReturningNull;
+
+@end
+
+@implementation SomeClass
+-(int *)methodReturningNull {
+ return 0;
+}
+
+-(int *)propertyReturningNull {
+ return 0;
+}
+@end
+
+void testMethodReturningNull(SomeClass *sc) {
+ int *result = [sc methodReturningNull];
+ *result = 1;
+#ifndef SUPPRESSED
+ // expected-warning@-2 {{Dereference of null pointer}}
+#endif
+}
+
+void testPropertyReturningNull(SomeClass *sc) {
+ int *result = sc.propertyReturningNull;
+ *result = 1;
+#ifndef SUPPRESSED
+ // expected-warning@-2 {{Dereference of null pointer}}
+#endif
+}