clang/test/Modules/using-decl.cpp

   1 // RUN: rm -rf %t
   2 // RUN: %clang_cc1 -x objective-c++ -std=c++11 -fmodules -fimplicit-module-maps -fmodules-cache-path=%t -I %S/Inputs %s -verify -DEARLY_IMPORT
   3 // RUN: %clang_cc1 -x objective-c++ -std=c++11 -fmodules -fimplicit-module-maps -fmodules-cache-path=%t -I %S/Inputs %s -verify -UEARLY_IMPORT
   4 // RUN: %clang_cc1 -x objective-c++ -std=c++11 -fmodules -fimplicit-module-maps -fmodules-cache-path=%t -I %S/Inputs %s -verify -DEARLY_IMPORT -fmodules-local-submodule-visibility
   5 // RUN: %clang_cc1 -x objective-c++ -std=c++11 -fmodules -fimplicit-module-maps -fmodules-cache-path=%t -I %S/Inputs %s -verify -UEARLY_IMPORT -fmodules-local-submodule-visibility
   6
   7 #ifdef EARLY_IMPORT
   8 @import using_decl.a;
   9 namespace UsingDecl {
  10   using ::merged;
  11 }
  12 int k = UsingDecl::merged;
  13 #endif
  14
  15 namespace Y {
  16   int conflicting_hidden_using_decl;
  17   int conflicting_hidden_using_decl_fn_2();
  18   int conflicting_hidden_using_decl_var_2;
  19   struct conflicting_hidden_using_decl_struct_2;
  20
  21   struct conflicting_hidden_using_decl_mixed_4 {};
  22   int conflicting_hidden_using_decl_mixed_5;
  23   int conflicting_hidden_using_decl_mixed_6();
  24 }
  25
  26 using Y::conflicting_hidden_using_decl;
  27 int conflicting_hidden_using_decl_fn();
  28 int conflicting_hidden_using_decl_var;
  29 struct conflicting_hidden_using_decl_struct {};
  30 using Y::conflicting_hidden_using_decl_fn_2;
  31 using Y::conflicting_hidden_using_decl_var_2;
  32 using Y::conflicting_hidden_using_decl_struct_2;
  33
  34 struct conflicting_hidden_using_decl_mixed_1 {};
  35 int conflicting_hidden_using_decl_mixed_2;
  36 int conflicting_hidden_using_decl_mixed_3();
  37 using Y::conflicting_hidden_using_decl_mixed_4;
  38 using Y::conflicting_hidden_using_decl_mixed_5;
  39 using Y::conflicting_hidden_using_decl_mixed_6;
  40
  41 template<typename T> int use(T);
  42 void test_conflicting() {
  43   use(conflicting_hidden_using_decl);
  44   use(conflicting_hidden_using_decl_fn());
  45   use(conflicting_hidden_using_decl_var);
  46   use(conflicting_hidden_using_decl_fn_2());
  47   use(conflicting_hidden_using_decl_var_2);
  48   use(conflicting_hidden_using_decl_mixed_1());
  49   use(conflicting_hidden_using_decl_mixed_2);
  50   use(conflicting_hidden_using_decl_mixed_3());
  51   use(conflicting_hidden_using_decl_mixed_4());
  52   use(conflicting_hidden_using_decl_mixed_5);
  53   use(conflicting_hidden_using_decl_mixed_6());
  54 }
  55
  56 #ifndef EARLY_IMPORT
  57 @import using_decl.a;
  58 #endif
  59
  60 UsingDecl::using_decl_type x = UsingDecl::using_decl_var;
  61 UsingDecl::inner y = x;
  62
  63 @import using_decl.b;
  64
  65 void test_conflicting_2() {
  66   use(conflicting_hidden_using_decl);         // expected-error {{ambiguous}}
  67   use(conflicting_hidden_using_decl_fn());    // expected-error {{ambiguous}}
  68   use(conflicting_hidden_using_decl_var);     // expected-error {{ambiguous}}
  69   use(conflicting_hidden_using_decl_fn_2());  // expected-error {{ambiguous}}
  70   use(conflicting_hidden_using_decl_var_2);   // expected-error {{ambiguous}}
  71   use(conflicting_hidden_using_decl_mixed_1); // ok, struct hidden
  72   use(conflicting_hidden_using_decl_mixed_2); // expected-error {{ambiguous}}
  73   use(conflicting_hidden_using_decl_mixed_3); // ok, struct hidden
  74   use(conflicting_hidden_using_decl_mixed_4); // ok, struct hidden
  75   use(conflicting_hidden_using_decl_mixed_5); // expected-error {{ambiguous}}
  76   use(conflicting_hidden_using_decl_mixed_6); // ok, struct hidden
  77   // expected-note@using-decl.cpp:* 7{{candidate}}
  78   // expected-note@using-decl-b.h:* 7{{candidate}}
  79
  80   int conflicting_hidden_using_decl_mixed_1::*p1;
  81   int conflicting_hidden_using_decl_mixed_3::*p3;
  82   int conflicting_hidden_using_decl_mixed_4::*p4;
  83   int conflicting_hidden_using_decl_mixed_6::*p6;
  84 }