clang/test/Analysis/nullability-arc.mm

   1 // RUN: %clang_analyze_cc1 -w -analyzer-checker=core,nullability\
   2 // RUN:                       -analyzer-output=text -verify %s
   3 // RUN: %clang_analyze_cc1 -w -analyzer-checker=core,nullability\
   4 // RUN:                       -analyzer-output=text -verify %s -fobjc-arc
   5
   6 #if !__has_feature(objc_arc)
   7 // expected-no-diagnostics
   8 #endif
   9
  10
  11 #define nil ((id)0)
  12
  13 @interface Param
  14 @end
  15
  16 @interface Base
  17 - (void)foo:(Param *_Nonnull)param;
  18 @end
  19
  20 @interface Derived : Base
  21 @end
  22
  23 @implementation Derived
  24 - (void)foo:(Param *)param {
  25   // FIXME: Why do we not emit the warning under ARC?
  26   [super foo:param];
  27 #if __has_feature(objc_arc)
  28   // expected-warning@-2{{nil passed to a callee that requires a non-null 1st parameter}}
  29   // expected-note@-3   {{nil passed to a callee that requires a non-null 1st parameter}}
  30 #endif
  31
  32   [self foo:nil];
  33 #if __has_feature(objc_arc)
  34   // expected-note@-2{{Calling 'foo:'}}
  35   // expected-note@-3{{Passing nil object reference via 1st parameter 'param'}}
  36 #endif
  37 }
  38 @end
  39