llvm-project/clang/test/Analysis/NoReturn.m

80 lines
3.3 KiB
Objective-C

// RUN: clang -analyze -checker-simple -analyzer-store-basic -verify %s &&
// RUN: clang -analyze -checker-cfref -analyzer-store-basic -verify %s &&
// RUN: clang -analyze -checker-cfref -analyzer-store-region -verify %s
#include <stdarg.h>
//===----------------------------------------------------------------------===//
// 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
extern id NSAllocateObject(Class aClass, NSUInteger extraBytes, NSZone *zone);
@interface NSString : NSObject <NSCopying, NSMutableCopying, NSCoding>
- (NSUInteger)length;
+ (id)stringWithFormat:(NSString *)format, ...;
@end
@interface NSSimpleCString : NSString {} @end
@interface NSConstantString : NSSimpleCString @end
extern void *_NSConstantStringClassReference;
typedef double NSTimeInterval;
@interface NSDate : NSObject <NSCopying, NSCoding> - (NSTimeInterval)timeIntervalSinceReferenceDate; @end
@class NSString, NSDictionary, NSArray;
@interface NSException : NSObject <NSCopying, NSCoding> {}
+ (NSException *)exceptionWithName:(NSString *)name reason:(NSString *)reason userInfo:(NSDictionary *)userInfo;
- (void)raise;
@end
@interface NSException (NSExceptionRaisingConveniences)
+ (void)raise:(NSString *)name format:(NSString *)format, ...;
+ (void)raise:(NSString *)name format:(NSString *)format arguments:(va_list)argList;
@end
enum {NSPointerFunctionsStrongMemory = (0 << 0), NSPointerFunctionsZeroingWeakMemory = (1 << 0), NSPointerFunctionsOpaqueMemory = (2 << 0), NSPointerFunctionsMallocMemory = (3 << 0), NSPointerFunctionsMachVirtualMemory = (4 << 0), NSPointerFunctionsObjectPersonality = (0 << 8), NSPointerFunctionsOpaquePersonality = (1 << 8), NSPointerFunctionsObjectPointerPersonality = (2 << 8), NSPointerFunctionsCStringPersonality = (3 << 8), NSPointerFunctionsStructPersonality = (4 << 8), NSPointerFunctionsIntegerPersonality = (5 << 8), NSPointerFunctionsCopyIn = (1 << 16), };
//===----------------------------------------------------------------------===//
// Test cases.
//===----------------------------------------------------------------------===//
int f1(int *x, NSString* s) {
if (x) ++x;
[NSException raise:@"Blah" format:[NSString stringWithFormat:@"Blah %@", s]];
return *x; // no-warning
}
int f2(int *x, ...) {
if (x) ++x;
va_list alist;
va_start(alist, x);
[NSException raise:@"Blah" format:@"Blah %@" arguments:alist];
return *x; // no-warning
}
int f3(int* x) {
if (x) ++x;
[[NSException exceptionWithName:@"My Exception" reason:@"Want to test exceptions." userInfo:0] raise];
return *x; // no-warning
}