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template <class T>
struct function {
};
void test() {
void (*x)(int, double) = nullptr;
function<void(int, double)> y = {};
// RUN: %clang_cc1 -fsyntax-only -code-completion-patterns -code-completion-at=%s:7:28 %s -o - | FileCheck -check-prefix=CHECK-1 %s
// RUN: %clang_cc1 -fsyntax-only -code-completion-patterns -code-completion-at=%s:9:35 %s -o - | FileCheck -check-prefix=CHECK-1 %s
// CHECK-1: COMPLETION: Pattern : [<#=#>](int <#parameter#>, double <#parameter#>){<#body#>}
// == Placeholders for suffix types must be placed properly.
function<void(void(*)(int))> z = {};
// RUN: %clang_cc1 -fsyntax-only -code-completion-patterns -code-completion-at=%s:15:36 %s -o - | FileCheck -check-prefix=CHECK-2 %s
// CHECK-2: COMPLETION: Pattern : [<#=#>](void (* <#parameter#>)(int)){<#body#>}
// == No need for a parameter list if function has no parameters.
function<void()> a = {};
// RUN: %clang_cc1 -fsyntax-only -code-completion-patterns -code-completion-at=%s:20:24 %s -o - | FileCheck -check-prefix=CHECK-3 %s
// CHECK-3: COMPLETION: Pattern : [<#=#>]{<#body#>}
}
template <class T, class Allocator = int>
struct vector {};
void test2() {
// == Try to preserve types as written.
function<void(vector<int>)> a = {};
using function_typedef = function<void(vector<int>)>;
function_typedef b = {};
// RUN: %clang_cc1 -fsyntax-only -code-completion-patterns -code-completion-at=%s:30:35 %s -o - | FileCheck -check-prefix=CHECK-4 %s
// RUN: %clang_cc1 -fsyntax-only -code-completion-patterns -code-completion-at=%s:33:24 %s -o - | FileCheck -check-prefix=CHECK-4 %s
// CHECK-4: COMPLETION: Pattern : [<#=#>](vector<int> <#parameter#>){<#body#>}
}
// Check another common function wrapper name.
template <class T> struct unique_function {};
void test3() {
unique_function<void()> a = {};
// RUN: %clang_cc1 -fsyntax-only -code-completion-patterns -code-completion-at=%s:43:31 %s -o - | FileCheck -check-prefix=CHECK-5 %s
// CHECK-5: COMPLETION: Pattern : [<#=#>]{<#body#>}
}
template <class T, class U> struct weird_function {};
void test4() {
weird_function<void(), int> b = {};
// RUN: %clang_cc1 -fsyntax-only -code-completion-patterns -code-completion-at=%s:50:35 %s -o - | FileCheck -check-prefix=CHECK-6 %s
// CHECK-6-NOT: COMPLETION: Pattern : [<#=
}
void test5() {
// Completions are only added when -code-completion-patterns are enabled.
function<void()> b = {};
// RUN: %clang_cc1 -fsyntax-only -code-completion-patterns -code-completion-at=%s:57:24 %s -o - | FileCheck -check-prefix=CHECK-7 %s
// CHECK-7: COMPLETION: Pattern : [<#=
// RUN: %clang_cc1 -fsyntax-only -code-completion-at=%s:57:24 %s -o - | FileCheck -check-prefix=CHECK-8 %s
// CHECK-8-NOT: COMPLETION: Pattern : [<#=
}
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