145 lines
3.7 KiB
C++
145 lines
3.7 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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// UNSUPPORTED: c++03, c++11, c++14
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// Throwing bad_any_cast is supported starting in macosx10.13
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// XFAIL: use_system_cxx_lib && target={{.+}}-apple-macosx10.{{9|10|11|12}} && !no-exceptions
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// <any>
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// template <class T, class ...Args> any make_any(Args&&...);
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// template <class T, class U, class ...Args>
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// any make_any(initializer_list<U>, Args&&...);
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#include <any>
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#include <cassert>
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#include "any_helpers.h"
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#include "count_new.h"
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#include "test_macros.h"
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using std::any;
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using std::any_cast;
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template <class Type>
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void test_make_any_type() {
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// constructing from a small type should perform no allocations.
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DisableAllocationGuard g(isSmallType<Type>()); ((void)g);
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assert(Type::count == 0);
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Type::reset();
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{
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any a = std::make_any<Type>();
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assert(Type::count == 1);
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assert(Type::copied == 0);
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assert(Type::moved == 0);
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assertContains<Type>(a, 0);
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}
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assert(Type::count == 0);
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Type::reset();
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{
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any a = std::make_any<Type>(101);
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assert(Type::count == 1);
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assert(Type::copied == 0);
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assert(Type::moved == 0);
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assertContains<Type>(a, 101);
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}
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assert(Type::count == 0);
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Type::reset();
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{
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any a = std::make_any<Type>(-1, 42, -1);
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assert(Type::count == 1);
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assert(Type::copied == 0);
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assert(Type::moved == 0);
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assertContains<Type>(a, 42);
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}
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assert(Type::count == 0);
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Type::reset();
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}
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template <class Type>
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void test_make_any_type_tracked() {
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// constructing from a small type should perform no allocations.
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DisableAllocationGuard g(isSmallType<Type>()); ((void)g);
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{
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any a = std::make_any<Type>();
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assertArgsMatch<Type>(a);
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}
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{
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any a = std::make_any<Type>(-1, 42, -1);
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assertArgsMatch<Type, int, int, int>(a);
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}
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// initializer_list constructor tests
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{
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any a = std::make_any<Type>({-1, 42, -1});
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assertArgsMatch<Type, std::initializer_list<int>>(a);
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}
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{
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int x = 42;
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any a = std::make_any<Type>({-1, 42, -1}, x);
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assertArgsMatch<Type, std::initializer_list<int>, int&>(a);
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}
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}
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#ifndef TEST_HAS_NO_EXCEPTIONS
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struct SmallThrows {
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SmallThrows(int) { throw 42; }
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SmallThrows(std::initializer_list<int>, int) { throw 42; }
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};
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static_assert(IsSmallObject<SmallThrows>::value, "");
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struct LargeThrows {
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LargeThrows(int) { throw 42; }
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LargeThrows(std::initializer_list<int>, int) { throw 42; }
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int data[sizeof(std::any)];
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};
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static_assert(!IsSmallObject<LargeThrows>::value, "");
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template <class Type>
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void test_make_any_throws()
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{
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{
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try {
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TEST_IGNORE_NODISCARD std::make_any<Type>(101);
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assert(false);
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} catch (int const&) {
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}
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}
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{
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try {
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TEST_IGNORE_NODISCARD std::make_any<Type>({1, 2, 3}, 101);
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assert(false);
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} catch (int const&) {
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}
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}
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}
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#endif
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int main(int, char**) {
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test_make_any_type<small>();
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test_make_any_type<large>();
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test_make_any_type<small_throws_on_copy>();
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test_make_any_type<large_throws_on_copy>();
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test_make_any_type<throws_on_move>();
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test_make_any_type_tracked<small_tracked_t>();
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test_make_any_type_tracked<large_tracked_t>();
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#ifndef TEST_HAS_NO_EXCEPTIONS
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test_make_any_throws<SmallThrows>();
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test_make_any_throws<LargeThrows>();
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#endif
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return 0;
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}
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