1a154e082c
Summary: The basic constraint solver was dropped in rL162384, leaving the range constraint solver as the default and only constraint solver. Explicitly specifying it is unnecessary, and makes it difficult to test with other solver backends. Reviewers: zaks.anna, dcoughlin Subscribers: cfe-commits Differential Revision: https://reviews.llvm.org/D26694 llvm-svn: 288372
86 lines
3.2 KiB
Objective-C
86 lines
3.2 KiB
Objective-C
// RUN: %clang_cc1 -analyze -analyzer-checker=core,osx.cocoa.RetainCount -analyzer-store=region -verify -fobjc-gc %s -Wno-implicit-function-declaration
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//===----------------------------------------------------------------------===//
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// The following code is reduced using delta-debugging from
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// Foundation.h and CoreFoundation.h (Mac OS X).
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//
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// It includes the basic definitions for the test cases below.
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// Not directly including [Core]Foundation.h directly makes this test case
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// both svelte and portable to non-Mac platforms.
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//===----------------------------------------------------------------------===//
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typedef const void * CFTypeRef;
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void CFRelease(CFTypeRef cf);
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CFTypeRef CFRetain(CFTypeRef cf);
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CFTypeRef CFMakeCollectable(CFTypeRef cf);
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typedef const struct __CFAllocator * CFAllocatorRef;
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typedef double CFTimeInterval;
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typedef CFTimeInterval CFAbsoluteTime;
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typedef const struct __CFDate * CFDateRef;
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extern CFDateRef CFDateCreate(CFAllocatorRef allocator, CFAbsoluteTime at);
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extern CFAbsoluteTime CFDateGetAbsoluteTime(CFDateRef theDate);
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typedef struct objc_object {} *id;
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typedef signed char BOOL;
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static __inline__ __attribute__((always_inline)) id NSMakeCollectable(CFTypeRef cf) { return 0; }
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@protocol NSObject - (BOOL)isEqual:(id)object;
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- (oneway void)release;
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- (id)retain;
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@end
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@class NSArray;
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//===----------------------------------------------------------------------===//
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// Test cases.
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//===----------------------------------------------------------------------===//
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CFAbsoluteTime CFAbsoluteTimeGetCurrent();
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CFAbsoluteTime f1_use_after_release() {
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CFAbsoluteTime t = CFAbsoluteTimeGetCurrent();
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CFDateRef date = CFDateCreate(0, t);
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CFRetain(date);
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[NSMakeCollectable(date) release];
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CFDateGetAbsoluteTime(date); // no-warning
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CFRelease(date);
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t = CFDateGetAbsoluteTime(date); // expected-warning{{Reference-counted object is used after it is released}}
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return t;
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}
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// The following two test cases verifies that CFMakeCollectable is a no-op
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// in non-GC mode and a "release" in GC mode.
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CFAbsoluteTime f2_use_after_release() {
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CFAbsoluteTime t = CFAbsoluteTimeGetCurrent();
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CFDateRef date = CFDateCreate(0, t);
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CFRetain(date);
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[(id) CFMakeCollectable(date) release];
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CFDateGetAbsoluteTime(date); // no-warning
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CFRelease(date);
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t = CFDateGetAbsoluteTime(date); // expected-warning{{Reference-counted object is used after it is released}}
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return t;
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}
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CFAbsoluteTime f2_noleak() {
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CFAbsoluteTime t = CFAbsoluteTimeGetCurrent();
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CFDateRef date = CFDateCreate(0, t);
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CFRetain(date);
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[(id) CFMakeCollectable(date) release];
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CFDateGetAbsoluteTime(date); // no-warning
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t = CFDateGetAbsoluteTime(date); // no-warning
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CFRelease(date); // no-warning
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return t;
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}
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void f3_leak_with_gc() {
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CFDateRef date = CFDateCreate(0, CFAbsoluteTimeGetCurrent()); // expected-warning 2 {{leak}}
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[[(id) date retain] release];
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}
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// The following test case verifies that we "stop tracking" a retained object
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// when it is passed as an argument to an implicitly defined function.
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CFAbsoluteTime f4() {
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CFAbsoluteTime t = CFAbsoluteTimeGetCurrent();
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CFDateRef date = CFDateCreate(0, t);
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CFRetain(date);
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some_implicitly_defined_function_stop_tracking(date); // no-warning
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return t;
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}
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