llvm-capstone/clang/test/SemaCXX/coroutine-seh.cpp
Gor Nishanov 5b050e4a18 [coroutines] Wrap the body of the coroutine in try-catch
Summary:
If unhandled_exception member function is present in the coroutine promise,
wrap the body of the coroutine in:

```
try {
  body
} catch(...) { promise.unhandled_exception(); }
```

Reviewers: EricWF, rnk, rsmith

Reviewed By: rsmith

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D31692

llvm-svn: 303583
2017-05-22 22:33:17 +00:00

38 lines
1.3 KiB
C++

// RUN: %clang_cc1 -std=c++1z -fcoroutines-ts -verify %s -fcxx-exceptions -fexceptions -triple x86_64-windows-msvc -fms-extensions
namespace std::experimental {
template <typename... T> struct coroutine_traits;
template <class Promise = void> struct coroutine_handle {
coroutine_handle() = default;
static coroutine_handle from_address(void *) noexcept;
};
template <> struct coroutine_handle<void> {
static coroutine_handle from_address(void *) noexcept;
coroutine_handle() = default;
template <class PromiseType>
coroutine_handle(coroutine_handle<PromiseType>) noexcept;
};
}
struct suspend_always {
bool await_ready() noexcept;
void await_suspend(std::experimental::coroutine_handle<>) noexcept;
void await_resume() noexcept;
};
template <> struct std::experimental::coroutine_traits<void> {
struct promise_type {
void get_return_object() noexcept;
suspend_always initial_suspend() noexcept;
suspend_always final_suspend() noexcept;
void return_void() noexcept;
void unhandled_exception() noexcept;
};
};
void SEH_used() {
__try { // expected-error {{cannot use SEH '__try' in a coroutine when C++ exceptions are enabled}}
co_return; // expected-note {{function is a coroutine due to use of 'co_return' here}}
} __except(0) {}
}