clang/test/Modules/merge-template-members-parent.cpp

   1 // RUN: rm -rf %t
   2 // RUN: mkdir %t
   3 // RUN: split-file %s %t
   4
   5 // RUN: %clang_cc1 -emit-obj -fmodules -fimplicit-module-maps -fmodules-cache-path=%t %t/merge.cpp -o %t/merge.o
   6
   7 //--- V.h
   8 #ifndef V_H
   9 #define V_H
  10 template <typename T>
  11 struct V {
  12   ~V() {}
  13 };
  14 #endif
  15
  16 //--- A.h
  17 #include "V.h"
  18
  19 void A(const V<unsigned long> &v);
  20
  21 //--- B.h
  22 #include "V.h"
  23
  24 inline V<unsigned long> B() {
  25   return {};
  26 }
  27
  28 //--- C.h
  29 #include "V.h"
  30
  31 #include "A.h"
  32
  33 class C {
  34 public:
  35   C(const V<unsigned long> &v) {
  36     V<unsigned long> v2;
  37   }
  38 };
  39
  40 C GetC() {
  41    return {{}};
  42 }
  43
  44 // This include *MUST* come last.
  45 #include "B.h"
  46
  47 //--- module.modulemap
  48 module "V" { header "V.h" export * }
  49 module "A" { header "A.h" export * }
  50 module "B" { header "B.h" export * }
  51 module "C" { header "C.h" export * }
  52
  53 //--- merge.cpp
  54 #include "C.h"
  55
  56 template <typename T>
  57 C GetC_main() {
  58    return {{}};
  59 }
  60
  61 void f() {
  62    GetC_main<float>();
  63    GetC();
  64 }