src/llvm/tools/clang/test/Analysis/rdar-6540084.m

   1 // RUN: %clang_cc1 -analyze -analyzer-checker=alpha.core -analyzer-checker=deadcode.DeadStores -verify %s
   2 //
   3 // This test exercises the live variables analysis (LiveVariables.cpp).
   4 // The case originally identified a non-termination bug.
   5 //
   6 typedef signed char BOOL;
   7 typedef unsigned int NSUInteger;
   8 typedef struct _NSZone NSZone;
   9 @protocol NSObject  - (BOOL)isEqual:(id)object; @end
  10 @interface NSObject <NSObject> {} @end
  11 extern id NSAllocateObject(Class aClass, NSUInteger extraBytes, NSZone *zone);
  12 @class NSArray;
  13 @class NSMutableArray, NSIndexSet, NSView, NSPredicate, NSString, NSViewAnimation, NSTimer; // expected-note{{forward declaration of class here}}
  14 @interface FooBazController : NSObject {}
  15 @end
  16 typedef struct {} TazVersion;
  17 @class TazNode;
  18 @interface TazGuttenberg : NSObject {} typedef NSUInteger BugsBunnyType; @end
  19 @interface FooBaz : NSObject {}
  20 @property (nonatomic) BugsBunnyType matchType;
  21 @property (nonatomic, retain) NSArray *papyrus; @end
  22 @implementation FooBazController
  23 - (NSArray *)excitingStuff:(FooBaz *)options {
  24   BugsBunnyType matchType = options.matchType;
  25   NSPredicate *isSearchablePredicate = [NSPredicate predicateWithFormat:@"isSearchable == YES"]; // expected-warning{{receiver 'NSPredicate' is a forward class and corresponding}} // expected-warning{{return type defaults to 'id'}}
  26   for (TazGuttenberg *Guttenberg in options.papyrus) {
  27     NSArray *GuttenbergNodes = [Guttenberg nodes]; // expected-warning{{return type defaults to 'id'}}
  28     NSArray *searchableNodes = [GuttenbergNodes filteredArrayUsingPredicate:isSearchablePredicate]; // expected-warning{{return type defaults to 'id'}}
  29     for (TazNode *node in searchableNodes) {
  30       switch (matchType) {
  31         default: break;
  32       }
  33     }
  34   }
  35   while (1) {}
  36 }
  37 @end