gcc/testsuite/obj-c++.dg/method-12.mm

   1 /* Check that sending messages to variables of type 'Class' does not involve instance methods, unless they reside in root classes.  */
   2 /* Author: Ziemowit Laski <zlaski@apple.com>  */
   3 /* { dg-options "-Wstrict-selector-match" } */
   4 /* { dg-do compile } */
   5 /* { dg-skip-if "Object interface removed" { *-*-darwin[1-2]* && { lp64 } } { "-fnext-runtime" } { "" } } */
   6 // { dg-additional-options "-Wno-objc-root-class" }
   7
   8 #include <objc/Protocol.h>
   9
  10 @interface Base
  11 - (unsigned)port; /* { dg-line Base_port } */
  12 @end
  13
  14 @interface Derived: Base
  15 - (Object *)port;
  16 + (Protocol *)port; /* { dg-line Derived_port_last } */
  17 - (id)starboard;
  18 @end
  19
  20 void foo(void) {
  21   Class receiver;
  22
  23   [receiver port];  /* { dg-warning "multiple methods named .\\+port. found" } */
  24        /* { dg-message "using .\\-\\(unsigned( int)?\\)port." "" { target *-*-* } Base_port } */
  25        /* { dg-message "also found .\\+\\(Protocol \\*\\)port." "" { target *-*-* } Derived_port_last } */
  26
  27   [receiver starboard];  /* { dg-warning "no .\\+starboard. method found" } */
  28        /* { dg-warning "messages without a matching method signature will be assumed to return .id. and accept .\.\.\.. as arguments" "" { target *-*-* } 0 } */
  29
  30   [Class port];  /* { dg-error ".Class. is not an Objective\\-C class name or alias" } */
  31 }