psyqo::Coroutine< T >::ChainAwaiter Struct Reference

The awaiter type for coroutine-to-coroutine chaining via co_await. More...

#include <psyqo/coroutine.hh>

Public Member Functions
	ChainAwaiter (std::coroutine_handle< Promise > h)
	~ChainAwaiter ()
	ChainAwaiter (ChainAwaiter &&other)
ChainAwaiter &	operator= (ChainAwaiter &&)=delete
	ChainAwaiter (const ChainAwaiter &)=delete
ChainAwaiter &	operator= (const ChainAwaiter &)=delete
constexpr bool	await_ready ()
void	await_suspend (std::coroutine_handle<> h)
constexpr T	await_resume ()

Public Attributes
std::coroutine_handle< Promise >	handle

Detailed Description

template<typename T = void>
struct psyqo::Coroutine< T >::ChainAwaiter

The awaiter type for coroutine-to-coroutine chaining via co_await.

GCC has known bugs across versions 10-15+ where the awaitable temporary in a co_await expression is not correctly promoted to the coroutine frame. By using operator co_await(), we transfer the coroutine handle to this awaiter object that GCC's coroutine pass reliably stores in the frame.

Constructor & Destructor Documentation

ChainAwaiter() [1/3]

template<typename T = void>

psyqo::Coroutine< T >::ChainAwaiter::ChainAwaiter ( std::coroutine_handle< Promise >  h )

inlineexplicit

~ChainAwaiter()

template<typename T = void>

psyqo::Coroutine< T >::ChainAwaiter::~ChainAwaiter ( )

inline

ChainAwaiter() [2/3]

template<typename T = void>

psyqo::Coroutine< T >::ChainAwaiter::ChainAwaiter ( ChainAwaiter &&  other )

inline

ChainAwaiter() [3/3]

template<typename T = void>

psyqo::Coroutine< T >::ChainAwaiter::ChainAwaiter ( const ChainAwaiter &  )

delete

Member Function Documentation

await_ready()

template<typename T = void>

constexpr bool psyqo::Coroutine< T >::ChainAwaiter::await_ready ( )

inlineconstexpr

await_resume()

template<typename T = void>

constexpr T psyqo::Coroutine< T >::ChainAwaiter::await_resume ( )

inlineconstexpr

await_suspend()

template<typename T = void>

void psyqo::Coroutine< T >::ChainAwaiter::await_suspend ( std::coroutine_handle<>  h )

inline

operator=() [1/2]

template<typename T = void>

ChainAwaiter & psyqo::Coroutine< T >::ChainAwaiter::operator= ( ChainAwaiter &&  )

delete

operator=() [2/2]

template<typename T = void>

ChainAwaiter & psyqo::Coroutine< T >::ChainAwaiter::operator= ( const ChainAwaiter &  )

delete

Member Data Documentation

handle

template<typename T = void>

std::coroutine_handle<Promise> psyqo::Coroutine< T >::ChainAwaiter::handle

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The documentation for this struct was generated from the following file:

• psyqo/coroutine.hh