clang/test/SemaObjC/Inputs/non-trivial-c-union.h

   1 // For backward compatibility, fields of C unions declared in system headers
   2 // that have non-trivial ObjC ownership qualifications are marked as unavailable
   3 // unless the qualifier is explicit and __strong.
   4
   5 #pragma clang system_header
   6
   7 typedef __strong id StrongID;
   8
   9 typedef union {
  10   id f0;
  11   _Nonnull id f1;
  12   __weak id f2;
  13   StrongID f3;
  14 } U0_SystemHeader;
  15
  16 typedef union { // expected-note {{'U1_SystemHeader' has subobjects that are non-trivial to destruct}} expected-note {{'U1_SystemHeader' has subobjects that are non-trivial to copy}}
  17   __strong id f0; // expected-note {{f0 has type '__strong id' that is non-trivial to destruct}} expected-note {{f0 has type '__strong id' that is non-trivial to copy}}
  18   _Nonnull id f1;
  19 } U1_SystemHeader;