forked from OSchip/llvm-project
90 lines
3.8 KiB
Objective-C
90 lines
3.8 KiB
Objective-C
// RUN: clang-cc -analyze -analyzer-experimental-internal-checks -checker-cfref -warn-dead-stores -analyzer-store=basic -analyzer-constraints=basic -verify %s
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// RUN: clang-cc -analyze -analyzer-experimental-internal-checks -checker-cfref -warn-dead-stores -analyzer-store=basic -analyzer-constraints=range -verify %s
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// RUN: clang-cc -analyze -analyzer-experimental-internal-checks -checker-cfref -warn-dead-stores -analyzer-store=region -analyzer-constraints=basic -verify %s
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// RUN: clang-cc -analyze -analyzer-experimental-internal-checks -checker-cfref -warn-dead-stores -analyzer-store=region -analyzer-constraints=range -verify %s
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// These declarations were reduced using Delta-Debugging from Foundation.h
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// on Mac OS X. The test cases are below.
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typedef struct objc_selector *SEL;
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typedef signed char BOOL;
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typedef unsigned int NSUInteger;
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@class NSInvocation, NSMethodSignature, NSCoder, NSString, NSEnumerator;
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@protocol NSObject
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- (BOOL)isEqual:(id)object;
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- (id)retain;
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@end
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@protocol NSCoding - (void)encodeWithCoder:(NSCoder *)aCoder;
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@end
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@interface NSObject <NSObject> {}
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+ (id)alloc;
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@end
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typedef float CGFloat;
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typedef struct _NSPoint {} NSRect;
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NSRect NSMakeRect(CGFloat x, CGFloat y, CGFloat w, CGFloat h);
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enum { NSBackingStoreRetained = 0, NSBackingStoreNonretained = 1, NSBackingStoreBuffered = 2 };
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typedef NSUInteger NSBackingStoreType;
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@interface NSResponder : NSObject <NSCoding> {}
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@end
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@protocol NSAnimatablePropertyContainer
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- (id)animator;
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@end
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extern NSString *NSAnimationTriggerOrderIn ;
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@class CIFilter, CALayer, NSDictionary, NSScreen, NSShadow, NSTrackingArea;
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@interface NSView : NSResponder <NSAnimatablePropertyContainer> {} @end
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@protocol NSValidatedUserInterfaceItem - (SEL)action; @end
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@protocol NSUserInterfaceValidations - (BOOL)validateUserInterfaceItem:(id <NSValidatedUserInterfaceItem>)anItem; @end @class NSNotification, NSText, NSView, NSMutableSet, NSSet, NSDate;
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enum { NSBorderlessWindowMask = 0, NSTitledWindowMask = 1 << 0, NSClosableWindowMask = 1 << 1, NSMiniaturizableWindowMask = 1 << 2, NSResizableWindowMask = 1 << 3 };
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@interface NSWindow : NSResponder <NSAnimatablePropertyContainer, NSUserInterfaceValidations> {
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struct __wFlags {} _wFlags;
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}
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- (id)initWithContentRect:(NSRect)contentRect styleMask:(NSUInteger)aStyle backing:(NSBackingStoreType)bufferingType defer:(BOOL)flag;
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- (id)initWithContentRect:(NSRect)contentRect styleMask:(NSUInteger)aStyle backing:(NSBackingStoreType)bufferingType defer:(BOOL)flag screen:(NSScreen *)screen;
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- (void)orderFrontRegardless;
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@end
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extern NSString *NSWindowDidBecomeKeyNotification;
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// Test cases.
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void f1() {
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NSWindow *window = [[NSWindow alloc]
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initWithContentRect:NSMakeRect(0,0,100,100)
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styleMask:NSTitledWindowMask|NSClosableWindowMask
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backing:NSBackingStoreBuffered
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defer:0];
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[window orderFrontRegardless]; // no-warning
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}
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void f2() {
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NSWindow *window = [[NSWindow alloc]
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initWithContentRect:NSMakeRect(0,0,100,100)
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styleMask:NSTitledWindowMask|NSClosableWindowMask
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backing:NSBackingStoreBuffered
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defer:0
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screen:0];
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[window orderFrontRegardless]; // no-warning
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}
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void f2b() {
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// FIXME: NSWindow doesn't own itself until it is displayed.
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NSWindow *window = [[NSWindow alloc] // no-warning
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initWithContentRect:NSMakeRect(0,0,100,100)
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styleMask:NSTitledWindowMask|NSClosableWindowMask
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backing:NSBackingStoreBuffered
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defer:0
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screen:0];
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[window orderFrontRegardless];
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[window retain];
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}
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void f3() {
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// FIXME: For now we don't track NSWindow.
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NSWindow *window = [NSWindow alloc]; // expected-warning{{never read}}
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}
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