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invocable.compile.pass.cpp
117 lines (102 loc) · 3.13 KB
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invocable.compile.pass.cpp
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//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// UNSUPPORTED: c++03, c++11, c++14, c++17
// UNSUPPORTED: libcpp-no-concepts
// template<class T, class U>
// concept invocable;
#include <chrono>
#include <concepts>
#include <memory>
#include <random>
#include <type_traits>
#include "functions.h"
template <class F, class... Args>
requires std::invocable<F, Args...> constexpr void
ModelsInvocable(F, Args&&...) noexcept{};
template <class F, class... Args>
requires(!std::invocable<F, Args...>) constexpr
void NotInvocable(F, Args&&...) noexcept {}
static_assert(!std::invocable<void>);
static_assert(!std::invocable<void*>);
static_assert(!std::invocable<int>);
static_assert(!std::invocable<int&>);
static_assert(!std::invocable<int&&>);
int main(int, char**) {
{
using namespace RegularInvocable;
ModelsInvocable(F);
NotInvocable(F, 0);
ModelsInvocable(G, 2);
NotInvocable(G);
NotInvocable(G, 3, 0);
NotInvocable(&A::I);
NotInvocable(&A::F);
{
A X;
ModelsInvocable(&A::I, X);
ModelsInvocable(&A::F, X);
ModelsInvocable(&A::G, X, 0);
NotInvocable(&A::G, X);
NotInvocable(&A::G, 0);
NotInvocable(&A::H);
A const& Y = X;
ModelsInvocable(&A::I, Y);
ModelsInvocable(&A::F, Y);
NotInvocable(&A::G, Y, 0);
NotInvocable(&A::H, Y, 0);
}
ModelsInvocable(&A::I, A{});
ModelsInvocable(&A::F, A{});
ModelsInvocable(&A::G, A{}, 0);
ModelsInvocable(&A::H, A{}, 0);
{
auto Up = std::make_unique<A>();
ModelsInvocable(&A::I, Up);
ModelsInvocable(&A::F, Up);
ModelsInvocable(&A::G, Up, 0);
NotInvocable(&A::H, Up, 0);
}
{
auto Sp = std::make_shared<A>();
ModelsInvocable(&A::I, Sp);
ModelsInvocable(&A::F, Sp);
ModelsInvocable(&A::G, Sp, 0);
NotInvocable(&A::H, Sp, 0);
}
}
{
using namespace Predicate;
{
ModelsInvocable(L2rSorted{}, 0, 1, 2);
NotInvocable(L2rSorted{});
NotInvocable(L2rSorted{}, 0);
NotInvocable(L2rSorted{}, 0, 1);
}
{
auto Up = std::make_unique<L2rSorted>();
ModelsInvocable(&L2rSorted::operator()<int>, Up, 0, 1, 2);
NotInvocable(&L2rSorted::operator()<int>, Up);
NotInvocable(&L2rSorted::operator()<int>, Up, 0);
NotInvocable(&L2rSorted::operator()<int>, Up, 0, 1);
}
{
auto Sp = std::make_shared<L2rSorted>();
ModelsInvocable(&L2rSorted::operator()<int>, Sp, 0, 1, 2);
NotInvocable(&L2rSorted::operator()<int>, Sp);
NotInvocable(&L2rSorted::operator()<int>, Sp, 0);
NotInvocable(&L2rSorted::operator()<int>, Sp, 0, 1);
}
}
{
auto G = std::mt19937_64(
std::chrono::high_resolution_clock().now().time_since_epoch().count());
auto D = std::uniform_int_distribution<>();
ModelsInvocable(D, G);
}
return 0;
}