Patch by Nikita Zhuk: test case for fix for false positive reported in PR2978.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@58432 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/Analysis/PR2978.m b/test/Analysis/PR2978.m
new file mode 100644 (file)
index 0000000..9200412
--- /dev/null
+++ b/test/Analysis/PR2978.m
@@ -0,0 +1,55 @@
+// RUN: clang -warn-objc-missing-dealloc %s -verify
+
+// Tests for the checker which checks missing/extra ivar 'release' calls 
+// in dealloc.
+
+@interface NSObject
+- (void)release;
+@end
+
+@interface MyClass : NSObject {
+@private
+  id _X;
+  id _Y;
+  id _Z;
+  id _K;
+  id _N;
+  id _M;
+  id _V;
+  id _W;
+}
+@property(retain) id X;
+@property(retain) id Y;
+@property(assign) id Z;
+@property(assign) id K;
+@property(assign, readonly) id N;
+@property(retain) id M;
+@property(retain) id V;
+@property(retain) id W;
+@end
+
+@implementation MyClass
+@synthesize X = _X;
+@synthesize Y = _Y; // expected-warning{{The '_Y' instance variable was retained by a synthesized property but wasn't released in 'dealloc'}}
+@synthesize Z = _Z; // expected-warning{{The '_Z' instance variable was not retained by a synthesized property but was released in 'dealloc'}}
+@synthesize K = _K;
+@synthesize N = _N;
+@synthesize M = _M;
+@synthesize V = _V;
+@synthesize W = _W; // expected-warning{{The '_W' instance variable was retained by a synthesized property but wasn't released in 'dealloc'}}
+
+- (void)dealloc
+{
+  [_X release];
+  [_Z release];
+  [_N release];
+  
+  self.M = 0; // This will release '_M'
+  [self setV:0]; // This will release '_V'
+  [self setW:@"newW"]; // This will release '_W', but retain the new value
+  
+  [super dealloc];
+}
+
+@end
+