diagrams:
t00069_class:
type: class
glob:
- t00069.cc
include:
namespaces:
- clanguml::t00069
using_namespace: clanguml::t00069File tests/t00069/t00069.cc
#include <coroutine>
#include <optional>
namespace clanguml {
namespace t00069 {
template <typename T> struct generator {
struct promise_type;
using handle_type = std::coroutine_handle<promise_type>;
generator(handle_type h)
: h_(h)
{
}
~generator() { h_.destroy(); }
struct promise_type {
T value_;
std::exception_ptr exception_;
generator get_return_object()
{
return generator(handle_type::from_promise(*this));
}
std::suspend_always initial_suspend() { return {}; }
std::suspend_always final_suspend() noexcept { return {}; }
void unhandled_exception() { exception_ = std::current_exception(); }
template <std::convertible_to<T> From>
std::suspend_always yield_value(From &&from)
{
value_ = std::forward<From>(from);
return {};
}
void return_void() { }
};
handle_type h_;
private:
bool full_ = false;
};
class A {
public:
generator<unsigned long> iota() { co_yield counter_++; }
generator<unsigned long> seed()
{
counter_ = 42;
co_return;
}
private:
unsigned long counter_;
};
} // namespace t00069
} // namespace clanguml
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