gcc/testsuite/objc.dg/try-catch-10.m

/* Ensure that @try/@catch blocks do not mess with types of
   local objects (other than their volatile bits).  */

/* { dg-options "-fobjc-exceptions" } */
/* { dg-do compile } */

#include "../objc-obj-c++-shared/TestsuiteObject.h"

@protocol Proto1
- (int)meth1;
@end

@protocol Proto2
- (int)meth2;
@end

@interface MyClass: TestsuiteObject <Proto2> {
  int a;
}
- (int)meth2;
- (TestsuiteObject *)parm1: (id)p1 parm2: (id<Proto1>)p2;
@end

MyClass *mc1, *mc2;

@implementation MyClass
- (int)meth2 {
  return a;
}
- (TestsuiteObject *)parm1: (id)p1 parm2: (id<Proto1>)p2 {
  @try {
    mc2 = p2;   /* { dg-warning "type .id <Proto1>. does not conform to the .Proto2. protocol" } */
  }
  @catch (id exc) {
    return exc;
  }
  mc1 = p1;  /* no warning here! */
  return self;
}
@end