clang/test/Analysis/ObjCRetSigs.m

   1 // RUN: %clang_analyze_cc1 -analyzer-checker=core,alpha.core -analyzer-checker=osx.cocoa.IncompatibleMethodTypes -verify -Wno-objc-root-class %s
   2
   3 int printf(const char *, ...);
   4
   5 @interface MyBase
   6 -(long long)length;
   7 -(long long)suppressedLength;
   8 @end
   9
  10 @interface MySub : MyBase{}
  11 -(double)length;
  12 -(double)suppressedLength;
  13 @end
  14
  15 @implementation MyBase
  16 -(long long)length{
  17    printf("Called MyBase -length;\n");
  18    return 3;
  19 }
  20 -(long long)suppressedLength{
  21    printf("Called MyBase -length;\n");
  22    return 3;
  23 }
  24 @end
  25
  26 @implementation MySub
  27 -(double)length{  // expected-warning{{types are incompatible}}
  28    printf("Called MySub -length;\n");
  29    return 3.3;
  30 }
  31 -(double)suppressedLength [[clang::suppress]]{ // no-warning
  32    printf("Called MySub -length;\n");
  33    return 3.3;
  34 }
  35 @end