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

1 files changed, 56 insertions, 0 deletions

diff --git a/clang/test/Analysis/uninit-msg-expr.m b/clang/test/Analysis/uninit-msg-expr.m
new file mode 100644
index 0000000..19fdf61
--- /dev/null
+++ b/clang/test/Analysis/uninit-msg-expr.m
@@ -0,0 +1,56 @@
+// RUN: %clang_cc1 -analyze -analyzer-checker=core -analyzer-store=region -verify %s
+
+//===----------------------------------------------------------------------===//
+// The following code is reduced using delta-debugging from
+// Foundation.h (Mac OS X).
+//
+// It includes the basic definitions for the test cases below.
+// Not directly including Foundation.h directly makes this test case 
+// both svelte and portable to non-Mac platforms.
+//===----------------------------------------------------------------------===//
+
+typedef signed char BOOL;
+typedef unsigned int NSUInteger;
+typedef struct _NSZone NSZone;
+@class NSInvocation, NSMethodSignature, NSCoder, NSString, NSEnumerator;
+@protocol NSObject  - (BOOL)isEqual:(id)object; @end
+@protocol NSCopying  - (id)copyWithZone:(NSZone *)zone; @end
+@protocol NSMutableCopying  - (id)mutableCopyWithZone:(NSZone *)zone; @end
+@protocol NSCoding  - (void)encodeWithCoder:(NSCoder *)aCoder; @end
+@interface NSObject <NSObject> {} @end
+@class NSString, NSData;
+@class NSString, NSData, NSMutableData, NSMutableDictionary, NSMutableArray;
+typedef struct {} NSFastEnumerationState;
+@protocol NSFastEnumeration
+- (NSUInteger)countByEnumeratingWithState:(NSFastEnumerationState *)state objects:(id *)stackbuf count:(NSUInteger)len;
+@end
+@class NSData, NSIndexSet, NSString, NSURL;
+@interface NSArray : NSObject <NSCopying, NSMutableCopying, NSCoding, NSFastEnumeration>
+- (NSUInteger)count;
+@end
+@interface NSArray (NSArrayCreation)
++ (id)array;
+- (NSUInteger)length;
+- (void)addObject:(id)object;
+@end
+extern NSString * const NSUndoManagerCheckpointNotification;
+
+//===----------------------------------------------------------------------===//
+// Test cases.
+//===----------------------------------------------------------------------===//
+
+unsigned f1() {
+  NSString *aString;
+  return [aString length]; // expected-warning {{Receiver in message expression is an uninitialized value}}
+}
+
+unsigned f2() {
+  NSString *aString = 0;
+  return [aString length]; // no-warning
+}
+
+void f3() {
+  NSMutableArray *aArray = [NSArray array];
+  NSString *aString;
+  [aArray addObject:aString]; // expected-warning {{Argument in message expression is an uninitialized value}}
+}