Differential D18758 Diff 58398 kdevplatform/3rdparty/qtpromise/qtpromise-0.5.0/src/qtpromise/qpromisehelpers_p.h

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kdevplatform/3rdparty/qtpromise/qtpromise-0.5.0/src/qtpromise/qpromisehelpers_p.h

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		1		#ifndef QTPROMISE_QPROMISEHELPERS_P_H
		2		#define QTPROMISE_QPROMISEHELPERS_P_H
		3
		4		#include "qpromiseconnections.h"
		5		#include "qpromiseexceptions.h"
		6
		7		namespace QtPromisePrivate {
		8
		9		// TODO: Suppress QPrivateSignal trailing private signal args
		10		// TODO: Support deducing tuple from args (might require MSVC2017)
		11
		12		template <typename Signal>
		13		using PromiseFromSignal = typename QtPromise::QPromise<Unqualified<typename ArgsOf<Signal>::first>>;
		14
		15		// Connect signal() to QPromiseResolve
		16		template <typename Sender, typename Signal>
		17		typename std::enable_if<(ArgsOf<Signal>::count == 0)>::type
		18		connectSignalToResolver(
		19		const QtPromise::QPromiseConnections& connections,
		20		const QtPromise::QPromiseResolve<void>& resolve,
		21		const Sender* sender,
		22		Signal signal)
		23		{
		24		connections << QObject::connect(sender, signal, [=]() {
		25		connections.disconnect();
		26		resolve();
		27		});
		28		}
		29
		30		// Connect signal() to QPromiseReject
		31		template <typename T, typename Sender, typename Signal>
		32		typename std::enable_if<(ArgsOf<Signal>::count == 0)>::type
		33		connectSignalToResolver(
		34		const QtPromise::QPromiseConnections& connections,
		35		const QtPromise::QPromiseReject<T>& reject,
		36		const Sender* sender,
		37		Signal signal)
		38		{
		39		connections << QObject::connect(sender, signal, [=]() {
		40		connections.disconnect();
		41		reject(QtPromise::QPromiseUndefinedException());
		42		});
		43		}
		44
		45		// Connect signal(args...) to QPromiseResolve
		46		template <typename T, typename Sender, typename Signal>
		47		typename std::enable_if<(ArgsOf<Signal>::count >= 1)>::type
		48		connectSignalToResolver(
		49		const QtPromise::QPromiseConnections& connections,
		50		const QtPromise::QPromiseResolve<T>& resolve,
		51		const Sender* sender,
		52		Signal signal)
		53		{
		54		connections << QObject::connect(sender, signal, [=](const T& value) {
		55		connections.disconnect();
		56		resolve(value);
		57		});
		58		}
		59
		60		// Connect signal(args...) to QPromiseReject
		61		template <typename T, typename Sender, typename Signal>
		62		typename std::enable_if<(ArgsOf<Signal>::count >= 1)>::type
		63		connectSignalToResolver(
		64		const QtPromise::QPromiseConnections& connections,
		65		const QtPromise::QPromiseReject<T>& reject,
		66		const Sender* sender,
		67		Signal signal)
		68		{
		69		using V = Unqualified<typename ArgsOf<Signal>::first>;
		70		connections << QObject::connect(sender, signal, [=](const V& value) {
		71		connections.disconnect();
		72		reject(value);
		73		});
		74		}
		75
		76		// Connect QObject::destroyed signal to QPromiseReject
		77		template <typename T, typename Sender>
		78		void connectDestroyedToReject(
		79		const QtPromise::QPromiseConnections& connections,
		80		const QtPromise::QPromiseReject<T>& reject,
		81		const Sender* sender)
		82		{
		83		connections << QObject::connect(sender, &QObject::destroyed, [=]() {
		84		connections.disconnect();
		85		reject(QtPromise::QPromiseContextException());
		86		});
		87		}
		88
		89		} // namespace QtPromisePrivate
		90
		91		#endif // QTPROMISE_QPROMISEHELPERS_P_H