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// -*- C++ -*-
//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// REQUIRES: fcoroutines-ts
// RUN: %build -fcoroutines-ts
// RUN: %run
// A simple "breathing" test that checks that <experimental/coroutine>
// can be parsed and used in all dialects, including C++03 in order to match
// Clang's behavior.
#include <experimental/coroutine>
namespace coro = std::experimental::coroutines_v1;
coro::suspend_always sa;
coro::suspend_never sn;
struct MyFuture {
struct promise_type {
typedef coro::coroutine_handle<promise_type> HandleT;
coro::suspend_never initial_suspend() { return sn; }
coro::suspend_always final_suspend() { return sa; }
coro::suspend_never yield_value(int) { return sn; }
MyFuture get_return_object() {
MyFuture f(HandleT::from_promise(*this));
return f;
}
void return_void() {}
void unhandled_exception() {}
};
typedef promise_type::HandleT HandleT;
MyFuture() : p() {}
MyFuture(HandleT h) : p(h) {}
coro::coroutine_handle<promise_type> p;
};
MyFuture test_coro() {
co_await sn;
co_yield 42;
co_return;
}
int main()
{
MyFuture f = test_coro();
while (!f.p.done())
f.p.resume();
f.p.destroy();
}
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