clang/test/Modules/submodule-visibility.cpp

   1 // RUN: rm -rf %t
   2 // RUN: %clang_cc1 -fmodules -fimplicit-module-maps -fmodules-cache-path=%t -I%S/Inputs/submodule-visibility -verify %s -DALLOW_NAME_LEAKAGE
   3 // RUN: %clang_cc1 -fmodules -fimplicit-module-maps -fmodules-local-submodule-visibility -fmodules-cache-path=%t -I%S/Inputs/submodule-visibility -verify %s -DIMPORT
   4 // RUN: %clang_cc1 -fmodules -fimplicit-module-maps -fmodules-local-submodule-visibility -fmodules-cache-path=%t -fmodule-name=x -I%S/Inputs/submodule-visibility -verify %s
   5 // RUN: %clang_cc1 -fimplicit-module-maps -fmodules-local-submodule-visibility -fmodules-cache-path=%t -I%S/Inputs/submodule-visibility -verify %s
   6 //
   7 // Explicit module builds.
   8 // RUN: %clang_cc1 -fmodules -fmodules-local-submodule-visibility -emit-module -x c++-module-map %S/Inputs/submodule-visibility/module.modulemap -fmodule-name=other -o %t/other.pcm
   9 // RUN: %clang_cc1 -fmodules -fmodule-map-file=%S/Inputs/submodule-visibility/module.modulemap -fmodules-local-submodule-visibility -fmodule-file=%t/other.pcm -verify -fmodule-name=x -I%S/Inputs/submodule-visibility %s
  10 // RUN: %clang_cc1 -fmodules -fmodule-map-file=%S/Inputs/submodule-visibility/module.modulemap -fmodule-file=%t/other.pcm -verify -fmodule-name=x -I%S/Inputs/submodule-visibility %s -DALLOW_TEXTUAL_NAME_LEAKAGE
  11
  12 #include "a.h"
  13 #include "b.h"
  14
  15 #if ALLOW_NAME_LEAKAGE
  16 // expected-no-diagnostics
  17 #elif IMPORT
  18 // expected-error@-6 {{could not build module 'x'}}
  19 #elif ALLOW_TEXTUAL_NAME_LEAKAGE
  20 // expected-warning@b.h:7 {{A is defined}}
  21 #else
  22 // The use of -fmodule-name=x causes us to textually include the above headers.
  23 // The submodule visibility rules are still applied in this case.
  24 //
  25 // expected-error@b.h:1 {{missing '#include "a.h"'; 'n' must be declared}}
  26 // expected-note@a.h:1 {{here}}
  27 #endif
  28
  29 int k = n + m; // OK, a and b are visible here.
  30
  31 #ifndef A
  32 #error A is not defined
  33 #endif
  34
  35 #ifndef B
  36 #error B is not defined
  37 #endif
  38
  39 // Ensure we don't compute the linkage of this struct before we find it has a
  40 // typedef name for linkage purposes.
  41 typedef struct {
  42   int p;
  43   void (*f)(int p);
  44 } name_for_linkage;
  45
  46 void g() { b_template<int>(); }