clang/test/CodeCompletion/variadic-template.cpp

   1 template <typename T, typename... Args>
   2 void fun(T x, Args... args) {}
   3
   4 void f() {
   5   fun(1, 2, 3, 4);
   6   // The results are quite awkward here, but it's the best we can do for now.
   7   // Tools, including clangd, can unexpand "args" when showing this to the user.
   8   // The important thing is that we provide OVERLOAD signature in all those cases.
   9   //
  10   // RUN: %clang_cc1 -fsyntax-only -code-completion-at=%s:%(line-5):7 %s -o - | FileCheck --check-prefix=CHECK-1 %s
  11   // CHECK-1: OVERLOAD: [#void#]fun(<#T x#>)
  12   // RUN: %clang_cc1 -fsyntax-only -code-completion-at=%s:%(line-7):10 %s -o - | FileCheck --check-prefix=CHECK-2 %s
  13   // CHECK-2: OVERLOAD: [#void#]fun(int x)
  14   // RUN: %clang_cc1 -fsyntax-only -code-completion-at=%s:%(line-9):13 %s -o - | FileCheck --check-prefix=CHECK-3 %s
  15   // CHECK-3: OVERLOAD: [#void#]fun(int x, int args)
  16   // RUN: %clang_cc1 -fsyntax-only -code-completion-at=%s:%(line-11):16 %s -o - | FileCheck --check-prefix=CHECK-4 %s
  17   // CHECK-4: OVERLOAD: [#void#]fun(int x, int args, int args)
  18 }