test/Analysis/NSWindow.m

   1 // RUN: %clang_cc1 -analyze -analyzer-experimental-internal-checks -analyzer-check-objc-mem -analyzer-checker=core.DeadStores -analyzer-store=basic -analyzer-constraints=basic -verify %s
   2 // RUN: %clang_cc1 -analyze -analyzer-experimental-internal-checks -analyzer-check-objc-mem -analyzer-checker=core.DeadStores -analyzer-store=basic -analyzer-constraints=range -verify %s
   3 // RUN: %clang_cc1 -analyze -analyzer-experimental-internal-checks -analyzer-check-objc-mem -analyzer-checker=core.DeadStores -analyzer-store=region -analyzer-constraints=basic -verify %s
   4 // RUN: %clang_cc1 -analyze -analyzer-experimental-internal-checks -analyzer-check-objc-mem -analyzer-checker=core.DeadStores -analyzer-store=region -analyzer-constraints=range -verify %s
   5
   6 // These declarations were reduced using Delta-Debugging from Foundation.h
   7 // on Mac OS X.  The test cases are below.
   8
   9 typedef struct objc_selector *SEL;
  10 typedef signed char BOOL;
  11 typedef unsigned int NSUInteger;
  12 @class NSInvocation, NSMethodSignature, NSCoder, NSString, NSEnumerator;
  13 @protocol NSObject
  14 - (BOOL)isEqual:(id)object;
  15 - (id)retain;
  16 @end
  17 @protocol NSCoding  - (void)encodeWithCoder:(NSCoder *)aCoder;
  18 @end
  19 @interface NSObject <NSObject> {}
  20   + (id)alloc;
  21 @end
  22 typedef float CGFloat;
  23 typedef struct _NSPoint {} NSRect;
  24 NSRect NSMakeRect(CGFloat x, CGFloat y, CGFloat w, CGFloat h);
  25 enum { NSBackingStoreRetained = 0,     NSBackingStoreNonretained = 1,     NSBackingStoreBuffered = 2 };
  26 typedef NSUInteger NSBackingStoreType;
  27 @interface NSResponder : NSObject <NSCoding> {}
  28 @end
  29 @protocol NSAnimatablePropertyContainer
  30 - (id)animator;
  31 @end
  32 extern NSString *NSAnimationTriggerOrderIn ;
  33 @class CIFilter, CALayer, NSDictionary, NSScreen, NSShadow, NSTrackingArea;
  34 @interface NSView : NSResponder  <NSAnimatablePropertyContainer>  {} @end
  35 @protocol NSValidatedUserInterfaceItem - (SEL)action; @end
  36 @protocol NSUserInterfaceValidations - (BOOL)validateUserInterfaceItem:(id <NSValidatedUserInterfaceItem>)anItem; @end   @class NSNotification, NSText, NSView, NSMutableSet, NSSet, NSDate;
  37 enum { NSBorderlessWindowMask = 0,     NSTitledWindowMask = 1 << 0,     NSClosableWindowMask = 1 << 1,     NSMiniaturizableWindowMask = 1 << 2,     NSResizableWindowMask = 1 << 3  };
  38 @interface NSWindow : NSResponder  <NSAnimatablePropertyContainer, NSUserInterfaceValidations>    {
  39   struct __wFlags {} _wFlags;
  40 }
  41 - (id)initWithContentRect:(NSRect)contentRect styleMask:(NSUInteger)aStyle backing:(NSBackingStoreType)bufferingType defer:(BOOL)flag;
  42 - (id)initWithContentRect:(NSRect)contentRect styleMask:(NSUInteger)aStyle backing:(NSBackingStoreType)bufferingType defer:(BOOL)flag screen:(NSScreen *)screen;
  43 - (void)orderFrontRegardless;
  44 @end
  45
  46 extern NSString *NSWindowDidBecomeKeyNotification;
  47
  48 // Test cases.
  49
  50 void f1() {
  51   NSWindow *window = [[NSWindow alloc]
  52                       initWithContentRect:NSMakeRect(0,0,100,100)
  53                         styleMask:NSTitledWindowMask|NSClosableWindowMask
  54                         backing:NSBackingStoreBuffered
  55                         defer:0];
  56
  57   [window orderFrontRegardless]; // no-warning
  58 }
  59
  60 void f2() {
  61   NSWindow *window = [[NSWindow alloc]
  62                       initWithContentRect:NSMakeRect(0,0,100,100)
  63                         styleMask:NSTitledWindowMask|NSClosableWindowMask
  64                         backing:NSBackingStoreBuffered
  65                         defer:0
  66                         screen:0];
  67
  68   [window orderFrontRegardless]; // no-warning
  69 }
  70
  71 void f2b() {
  72   // FIXME: NSWindow doesn't own itself until it is displayed.
  73   NSWindow *window = [[NSWindow alloc] // no-warning
  74                       initWithContentRect:NSMakeRect(0,0,100,100)
  75                         styleMask:NSTitledWindowMask|NSClosableWindowMask
  76                         backing:NSBackingStoreBuffered
  77                         defer:0
  78                         screen:0];
  79
  80   [window orderFrontRegardless];
  81
  82   [window retain];
  83 }
  84
  85
  86 void f3() {
  87   // FIXME: For now we don't track NSWindow.
  88   NSWindow *window = [NSWindow alloc];  // expected-warning{{never read}}
  89 }