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/* Check if sending messages to "underspecified" objects is handled gracefully.  */

/* Author: Ziemowit Laski .  */

/* { dg-do compile } */

@class UnderSpecified;

typedef struct NotAClass {

  int a, b;

} NotAClass;

void foo(UnderSpecified *u, NotAClass *n) {

  [n nonexistent_method];    /* { dg-warning "invalid receiver type" } */

       /* { dg-warning "no .\\-nonexistent_method. method found" "" { target *-*-* } 12 } */

  [NotAClass nonexistent_method]; /* { dg-error ".NotAClass. is not an Objective\\-C class name or alias" } */

  [u nonexistent_method]; /* { dg-warning "no .\\-nonexistent_method. method found" } */

  [UnderSpecified nonexistent_method]; /* { dg-warning "no .\\+nonexistent_method. method found" } */

}

/* { dg-warning "Messages without a matching method signature" "" { target *-*-* } 0 } */

/* { dg-warning "will be assumed to return .id. and accept" "" { target *-*-* } 0 } */

/* { dg-warning ".\.\.\.. as arguments" "" { target *-*-* } 0 } */