[analyzer] Allow IvarInvalidation checker to suppress warnings via
assertions.
To ensure that custom assertions/conditional would also be supported,
just check if the ivar that needs to be invalidated or set to nil is
compared against 0.
Unfortunately, this will not work for code containing 'assert(IvarName)'
llvm-svn: 172147
diff --git a/clang/test/Analysis/objc_invalidation.m b/clang/test/Analysis/objc_invalidation.m
index 8e9cd48..f21bfdf 100644
--- a/clang/test/Analysis/objc_invalidation.m
+++ b/clang/test/Analysis/objc_invalidation.m
@@ -1,4 +1,10 @@
// RUN: %clang_cc1 -analyze -analyzer-checker=core,alpha.osx.cocoa.InstanceVariableInvalidation -fobjc-default-synthesize-properties -verify %s
+extern void __assert_fail (__const char *__assertion, __const char *__file,
+ unsigned int __line, __const char *__function)
+ __attribute__ ((__noreturn__));
+
+#define assert(expr) \
+ ((expr) ? (void)(0) : __assert_fail (#expr, __FILE__, __LINE__, __func__))
@protocol NSObject
@end
@@ -168,10 +174,24 @@
@interface Child: Parent <Invalidation2, IDEBuildable>
@end
-@implementation Parent
+@implementation Parent{
+ @private
+ Invalidation2Class *Ivar10;
+ Invalidation2Class *Ivar11;
+ Invalidation2Class *Ivar12;
+}
+
@synthesize ObjB = _ObjB;
- (void)invalidate{
_ObjB = ((void*)0);
+
+ assert(Ivar10 == 0);
+
+ if (__builtin_expect(!(Ivar11 == ((void*)0)), 0))
+ assert(0);
+
+ assert(0 == Ivar12);
+
}
@end