Merge branch 'master' of ssh://bitbucket.org/czan/honours

1 files changed, 32 insertions, 0 deletions

diff --git a/clang/test/Analysis/nil-receiver-undefined-larger-than-voidptr-ret-region.m b/clang/test/Analysis/nil-receiver-undefined-larger-than-voidptr-ret-region.m
new file mode 100644
index 0000000..c1cc076
--- /dev/null
+++ b/clang/test/Analysis/nil-receiver-undefined-larger-than-voidptr-ret-region.m
@@ -0,0 +1,32 @@
+// RUN: %clang_cc1 -triple i386-apple-darwin8 -analyze -analyzer-checker=core,experimental.core -analyzer-constraints=range -analyzer-store=region -verify -Wno-objc-root-class %s
+
+// <rdar://problem/6888289> - This test case shows that a nil instance
+// variable can possibly be initialized by a method.
+@interface RDar6888289
+{
+  id *x;
+}
+- (void) test:(id) y;
+- (void) test2:(id) y;
+- (void) invalidate;
+@end
+
+id *getVal(void);
+
+@implementation RDar6888289
+- (void) test:(id)y {
+  if (!x)
+    [self invalidate];
+  *x = y;
+}
+- (void) test2:(id)y {
+  if (!x) {}
+  *x = y; // expected-warning {{null}}
+}
+
+- (void) invalidate {
+  x = getVal();
+}
+
+@end
+