583 lines
22 KiB
C++
583 lines
22 KiB
C++
/*
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This file is part of Telegram Desktop,
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the official desktop version of Telegram messaging app, see https://telegram.org
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Telegram Desktop is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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It is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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In addition, as a special exception, the copyright holders give permission
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to link the code of portions of this program with the OpenSSL library.
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Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
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Copyright (c) 2014-2016 John Preston, https://desktop.telegram.org
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*/
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#pragma once
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#ifndef OS_MAC_OLD
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#include <memory>
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#endif // OS_MAC_OLD
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namespace base {
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namespace internal {
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template <typename Return, typename ...Args>
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struct lambda_wrap_helper_base {
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using construct_copy_other_type = void(*)(void *, const void *); // dst, src
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using construct_move_other_type = void(*)(void *, void *); // dst, src
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using call_type = Return(*)(const void *, Args...);
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using destruct_type = void(*)(const void *);
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lambda_wrap_helper_base() = delete;
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lambda_wrap_helper_base(const lambda_wrap_helper_base &other) = delete;
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lambda_wrap_helper_base &operator=(const lambda_wrap_helper_base &other) = delete;
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lambda_wrap_helper_base(
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construct_copy_other_type construct_copy_other,
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construct_move_other_type construct_move_other,
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call_type call,
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destruct_type destruct)
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: construct_copy_other(construct_copy_other)
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, construct_move_other(construct_move_other)
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, call(call)
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, destruct(destruct) {
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}
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const construct_copy_other_type construct_copy_other;
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const construct_move_other_type construct_move_other;
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const call_type call;
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const destruct_type destruct;
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static constexpr size_t kFullStorageSize = sizeof(void*) + 24U;
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static constexpr size_t kStorageSize = kFullStorageSize - sizeof(void*);
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template <typename Lambda>
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using IsLarge = std_::integral_constant<bool, !(sizeof(std_::decay_simple_t<Lambda>) <= kStorageSize)>;
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protected:
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static void bad_construct_copy(void *lambda, const void *source) {
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throw std::exception();
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}
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};
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template <typename Return, typename ...Args>
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struct lambda_wrap_empty : public lambda_wrap_helper_base<Return, Args...> {
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static void construct_copy_other_method(void *lambda, const void *source) {
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}
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static void construct_move_other_method(void *lambda, void *source) {
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}
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static Return call_method(const void *lambda, Args... args) {
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throw std::exception();
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}
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static void destruct_method(const void *lambda) {
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}
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lambda_wrap_empty() : lambda_wrap_helper_base<Return, Args...>(
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&lambda_wrap_empty::construct_copy_other_method,
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&lambda_wrap_empty::construct_move_other_method,
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&lambda_wrap_empty::call_method,
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&lambda_wrap_empty::destruct_method) {
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}
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static const lambda_wrap_empty<Return, Args...> instance;
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};
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template <typename Return, typename ...Args>
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const lambda_wrap_empty<Return, Args...> lambda_wrap_empty<Return, Args...>::instance;
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template <typename Lambda, typename IsLarge, typename Return, typename ...Args> struct lambda_wrap_helper_move_impl;
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//
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// Disable large lambda support.
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// If you really need it, just store data in some std_::unique_ptr<struct>.
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//
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//template <typename Lambda, typename Return, typename ...Args>
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//struct lambda_wrap_helper_move_impl<Lambda, std_::true_type, Return, Args...> : public lambda_wrap_helper_base<Return, Args...> {
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// using JustLambda = std_::decay_simple_t<Lambda>;
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// using LambdaPtr = std_::unique_ptr<JustLambda>;
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// using Parent = lambda_wrap_helper_base<Return, Args...>;
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// static void construct_move_other_method(void *lambda, void *source) {
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// auto source_lambda = static_cast<LambdaPtr*>(source);
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// new (lambda) LambdaPtr(std_::move(*source_lambda));
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// }
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// static void construct_move_lambda_method(void *lambda, void *source) {
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// auto source_lambda = static_cast<JustLambda*>(source);
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// new (lambda) LambdaPtr(std_::make_unique<JustLambda>(static_cast<JustLambda&&>(*source_lambda)));
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// }
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// static Return call_method(const void *lambda, Args... args) {
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// return (**static_cast<const LambdaPtr*>(lambda))(std_::forward<Args>(args)...);
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// }
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// static void destruct_method(const void *lambda) {
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// static_cast<const LambdaPtr*>(lambda)->~LambdaPtr();
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// }
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// lambda_wrap_helper_move_impl() : Parent(
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// &Parent::bad_construct_copy,
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// &lambda_wrap_helper_move_impl::construct_move_other_method,
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// &lambda_wrap_helper_move_impl::call_method,
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// &lambda_wrap_helper_move_impl::destruct_method) {
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// }
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//
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//protected:
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// lambda_wrap_helper_move_impl(
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// typename Parent::construct_copy_other_type construct_copy_other
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// ) : Parent(
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// construct_copy_other,
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// &lambda_wrap_helper_move_impl::construct_move_other_method,
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// &lambda_wrap_helper_move_impl::call_method,
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// &lambda_wrap_helper_move_impl::destruct_method) {
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// }
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//
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//};
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template <typename Lambda, typename Return, typename ...Args>
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struct lambda_wrap_helper_move_impl<Lambda, std_::false_type, Return, Args...> : public lambda_wrap_helper_base<Return, Args...> {
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using JustLambda = std_::decay_simple_t<Lambda>;
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using Parent = lambda_wrap_helper_base<Return, Args...>;
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static void construct_move_other_method(void *lambda, void *source) {
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auto source_lambda = static_cast<JustLambda*>(source);
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new (lambda) JustLambda(static_cast<JustLambda&&>(*source_lambda));
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}
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static void construct_move_lambda_method(void *lambda, void *source) {
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static_assert(alignof(JustLambda) <= alignof(void*), "Bad lambda alignment.");
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auto space = sizeof(JustLambda);
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auto aligned = std_::align(alignof(JustLambda), space, lambda, space);
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t_assert(aligned == lambda);
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auto source_lambda = static_cast<JustLambda*>(source);
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new (lambda) JustLambda(static_cast<JustLambda&&>(*source_lambda));
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}
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static Return call_method(const void *lambda, Args... args) {
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return (*static_cast<const JustLambda*>(lambda))(std_::forward<Args>(args)...);
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}
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static void destruct_method(const void *lambda) {
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static_cast<const JustLambda*>(lambda)->~JustLambda();
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}
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lambda_wrap_helper_move_impl() : Parent(
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&Parent::bad_construct_copy,
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&lambda_wrap_helper_move_impl::construct_move_other_method,
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&lambda_wrap_helper_move_impl::call_method,
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&lambda_wrap_helper_move_impl::destruct_method) {
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}
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protected:
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lambda_wrap_helper_move_impl(
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typename Parent::construct_copy_other_type construct_copy_other
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) : Parent(
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construct_copy_other,
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&lambda_wrap_helper_move_impl::construct_move_other_method,
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&lambda_wrap_helper_move_impl::call_method,
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&lambda_wrap_helper_move_impl::destruct_method) {
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}
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};
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template <typename Lambda, typename Return, typename ...Args>
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struct lambda_wrap_helper_move : public lambda_wrap_helper_move_impl<Lambda
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, typename lambda_wrap_helper_base<Return, Args...>::template IsLarge<Lambda>
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, Return, Args...> {
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static const lambda_wrap_helper_move instance;
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};
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template <typename Lambda, typename Return, typename ...Args>
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const lambda_wrap_helper_move<Lambda, Return, Args...> lambda_wrap_helper_move<Lambda, Return, Args...>::instance = {};
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template <typename Lambda, typename IsLarge, typename Return, typename ...Args> struct lambda_wrap_helper_copy_impl;
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//
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// Disable large lambda support.
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// If you really need it, just store data in some QSharedPointer<struct>.
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//
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//template <typename Lambda, typename Return, typename ...Args>
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//struct lambda_wrap_helper_copy_impl<Lambda, std_::true_type, Return, Args...> : public lambda_wrap_helper_move_impl<Lambda, std_::true_type, Return, Args...> {
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// using JustLambda = std_::decay_simple_t<Lambda>;
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// using LambdaPtr = std_::unique_ptr<JustLambda>;
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// using Parent = lambda_wrap_helper_move_impl<Lambda, std_::true_type, Return, Args...>;
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// static void construct_copy_other_method(void *lambda, const void *source) {
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// auto source_lambda = static_cast<const LambdaPtr*>(source);
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// new (lambda) LambdaPtr(std_::make_unique<JustLambda>(*source_lambda->get()));
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// }
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// static void construct_copy_lambda_method(void *lambda, const void *source) {
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// auto source_lambda = static_cast<const JustLambda*>(source);
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// new (lambda) LambdaPtr(std_::make_unique<JustLambda>(static_cast<const JustLambda &>(*source_lambda)));
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// }
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// lambda_wrap_helper_copy_impl() : Parent(&lambda_wrap_helper_copy_impl::construct_copy_other_method) {
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// }
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//
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//};
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template <typename Lambda, typename Return, typename ...Args>
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struct lambda_wrap_helper_copy_impl<Lambda, std_::false_type, Return, Args...> : public lambda_wrap_helper_move_impl<Lambda, std_::false_type, Return, Args...> {
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using JustLambda = std_::decay_simple_t<Lambda>;
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using Parent = lambda_wrap_helper_move_impl<Lambda, std_::false_type, Return, Args...>;
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static void construct_copy_other_method(void *lambda, const void *source) {
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auto source_lambda = static_cast<const JustLambda*>(source);
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new (lambda) JustLambda(static_cast<const JustLambda &>(*source_lambda));
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}
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static void construct_copy_lambda_method(void *lambda, const void *source) {
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static_assert(alignof(JustLambda) <= alignof(void*), "Bad lambda alignment.");
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auto space = sizeof(JustLambda);
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auto aligned = std_::align(alignof(JustLambda), space, lambda, space);
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t_assert(aligned == lambda);
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auto source_lambda = static_cast<const JustLambda*>(source);
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new (lambda) JustLambda(static_cast<const JustLambda &>(*source_lambda));
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}
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lambda_wrap_helper_copy_impl() : Parent(&lambda_wrap_helper_copy_impl::construct_copy_other_method) {
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}
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};
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template <typename Lambda, typename Return, typename ...Args>
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struct lambda_wrap_helper_copy : public lambda_wrap_helper_copy_impl<Lambda
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, typename lambda_wrap_helper_base<Return, Args...>::template IsLarge<Lambda>
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, Return, Args...> {
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static const lambda_wrap_helper_copy instance;
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};
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template <typename Lambda, typename Return, typename ...Args>
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const lambda_wrap_helper_copy<Lambda, Return, Args...> lambda_wrap_helper_copy<Lambda, Return, Args...>::instance = {};
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} // namespace internal
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template <typename Function> class lambda_unique;
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template <typename Function> class lambda_wrap;
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template <typename Return, typename ...Args>
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class lambda_unique<Return(Args...)> {
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using BaseHelper = internal::lambda_wrap_helper_base<Return, Args...>;
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using EmptyHelper = internal::lambda_wrap_empty<Return, Args...>;
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template <typename Lambda>
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using IsUnique = std_::is_same<lambda_unique, std_::decay_simple_t<Lambda>>;
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template <typename Lambda>
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using IsWrap = std_::is_same<lambda_wrap<Return(Args...)>, std_::decay_simple_t<Lambda>>;
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template <typename Lambda>
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using IsOther = std_::enable_if_t<!IsUnique<Lambda>::value && !IsWrap<Lambda>::value>;
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template <typename Lambda>
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using IsRvalue = std_::enable_if_t<std_::is_rvalue_reference<Lambda&&>::value>;
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public:
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lambda_unique() : helper_(&EmptyHelper::instance) {
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}
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lambda_unique(const lambda_unique &other) = delete;
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lambda_unique &operator=(const lambda_unique &other) = delete;
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lambda_unique(lambda_unique &&other) : helper_(other.helper_) {
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helper_->construct_move_other(storage_, other.storage_);
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}
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lambda_unique &operator=(lambda_unique &&other) {
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auto temp = std_::move(other);
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helper_->destruct(storage_);
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helper_ = temp.helper_;
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helper_->construct_move_other(storage_, temp.storage_);
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return *this;
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}
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void swap(lambda_unique &other) {
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if (this != &other) {
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lambda_unique temp = std_::move(other);
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other = std_::move(*this);
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*this = std_::move(other);
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}
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}
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template <typename Lambda, typename = IsOther<Lambda>, typename = IsRvalue<Lambda>>
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lambda_unique(Lambda &&other) : helper_(&internal::lambda_wrap_helper_move<Lambda, Return, Args...>::instance) {
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internal::lambda_wrap_helper_move<Lambda, Return, Args...>::construct_move_lambda_method(storage_, &other);
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}
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template <typename Lambda, typename = IsOther<Lambda>, typename = IsRvalue<Lambda>>
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lambda_unique &operator=(Lambda &&other) {
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auto temp = std_::move(other);
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helper_->destruct(storage_);
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helper_ = &internal::lambda_wrap_helper_move<Lambda, Return, Args...>::instance;
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internal::lambda_wrap_helper_move<Lambda, Return, Args...>::construct_move_lambda_method(storage_, &temp);
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return *this;
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}
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inline Return operator()(Args... args) const {
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return helper_->call(storage_, std_::forward<Args>(args)...);
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}
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explicit operator bool() const {
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return (helper_ != &EmptyHelper::instance);
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}
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~lambda_unique() {
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helper_->destruct(storage_);
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}
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protected:
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struct Private {
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};
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lambda_unique(const BaseHelper *helper, const Private &) : helper_(helper) {
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}
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const BaseHelper *helper_;
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static_assert(BaseHelper::kStorageSize % sizeof(void*) == 0, "Bad pointer size.");
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void *(storage_[BaseHelper::kStorageSize / sizeof(void*)]);
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};
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template <typename Return, typename ...Args>
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class lambda_wrap<Return(Args...)> : public lambda_unique<Return(Args...)> {
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using BaseHelper = internal::lambda_wrap_helper_base<Return, Args...>;
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using Parent = lambda_unique<Return(Args...)>;
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template <typename Lambda>
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using IsOther = std_::enable_if_t<!std_::is_same<lambda_wrap, std_::decay_simple_t<Lambda>>::value>;
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template <typename Lambda>
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using IsRvalue = std_::enable_if_t<std_::is_rvalue_reference<Lambda&&>::value>;
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template <typename Lambda>
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using IsNotRvalue = std_::enable_if_t<!std_::is_rvalue_reference<Lambda&&>::value>;
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public:
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lambda_wrap() = default;
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lambda_wrap(const lambda_wrap &other) : Parent(other.helper_, typename Parent::Private()) {
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this->helper_->construct_copy_other(this->storage_, other.storage_);
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}
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lambda_wrap &operator=(const lambda_wrap &other) {
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auto temp = other;
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temp.swap(*this);
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return *this;
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}
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lambda_wrap(lambda_wrap &&other) = default;
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lambda_wrap &operator=(lambda_wrap &&other) = default;
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void swap(lambda_wrap &other) {
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if (this != &other) {
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lambda_wrap temp = std_::move(other);
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other = std_::move(*this);
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*this = std_::move(other);
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}
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}
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template <typename Lambda, typename = IsOther<Lambda>>
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lambda_wrap(const Lambda &other) : Parent(&internal::lambda_wrap_helper_copy<Lambda, Return, Args...>::instance, typename Parent::Private()) {
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internal::lambda_wrap_helper_copy<Lambda, Return, Args...>::construct_copy_lambda_method(this->storage_, &other);
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}
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template <typename Lambda, typename = IsOther<Lambda>, typename = IsRvalue<Lambda>>
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lambda_wrap(Lambda &&other) : Parent(&internal::lambda_wrap_helper_copy<Lambda, Return, Args...>::instance, typename Parent::Private()) {
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internal::lambda_wrap_helper_copy<Lambda, Return, Args...>::construct_move_lambda_method(this->storage_, &other);
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}
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template <typename Lambda, typename = IsOther<Lambda>>
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lambda_wrap &operator=(const Lambda &other) {
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auto temp = other;
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this->helper_->destruct(this->storage_);
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this->helper_ = &internal::lambda_wrap_helper_copy<Lambda, Return, Args...>::instance;
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internal::lambda_wrap_helper_copy<Lambda, Return, Args...>::construct_copy_lambda_method(this->storage_, &other);
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return *this;
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}
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template <typename Lambda, typename = IsOther<Lambda>, typename = IsRvalue<Lambda>>
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lambda_wrap &operator=(Lambda &&other) {
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auto temp = std_::move(other);
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this->helper_->destruct(this->storage_);
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this->helper_ = &internal::lambda_wrap_helper_copy<Lambda, Return, Args...>::instance;
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internal::lambda_wrap_helper_copy<Lambda, Return, Args...>::construct_move_lambda_method(this->storage_, &other);
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return *this;
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}
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};
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} // namespace base
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// While we still use rpcDone() and rpcFail()
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#include "mtproto/rpc_sender.h"
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template <typename FunctionType>
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struct LambdaUniqueHelper;
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template <typename Lambda, typename R, typename ...Args>
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struct LambdaUniqueHelper<R(Lambda::*)(Args...) const> {
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using UniqueType = base::lambda_unique<R(Args...)>;
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};
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template <typename FunctionType>
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using LambdaGetUnique = typename LambdaUniqueHelper<FunctionType>::UniqueType;
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template <typename Base, typename FunctionType>
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class RPCHandlerImplementation : public Base {
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protected:
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using Lambda = base::lambda_unique<FunctionType>;
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using Parent = RPCHandlerImplementation<Base, FunctionType>;
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public:
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RPCHandlerImplementation(Lambda &&handler) : _handler(std_::move(handler)) {
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}
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protected:
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Lambda _handler;
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};
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template <typename FunctionType>
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using RPCDoneHandlerImplementation = RPCHandlerImplementation<RPCAbstractDoneHandler, FunctionType>;
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template <typename R>
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class RPCDoneHandlerImplementationBare : public RPCDoneHandlerImplementation<R(const mtpPrime*, const mtpPrime*)> { // done(from, end)
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public:
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using RPCDoneHandlerImplementation<R(const mtpPrime*, const mtpPrime*)>::Parent::Parent;
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void operator()(mtpRequestId requestId, const mtpPrime *from, const mtpPrime *end) const override {
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return this->_handler ? this->_handler(from, end) : void(0);
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}
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};
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template <typename R>
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class RPCDoneHandlerImplementationBareReq : public RPCDoneHandlerImplementation<R(const mtpPrime*, const mtpPrime*, mtpRequestId)> { // done(from, end, req_id)
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public:
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using RPCDoneHandlerImplementation<R(const mtpPrime*, const mtpPrime*, mtpRequestId)>::Parent::Parent;
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void operator()(mtpRequestId requestId, const mtpPrime *from, const mtpPrime *end) const override {
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return this->_handler ? this->_handler(from, end, requestId) : void(0);
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}
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};
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template <typename R, typename T>
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class RPCDoneHandlerImplementationPlain : public RPCDoneHandlerImplementation<R(const T&)> { // done(result)
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public:
|
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using RPCDoneHandlerImplementation<R(const T&)>::Parent::Parent;
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void operator()(mtpRequestId requestId, const mtpPrime *from, const mtpPrime *end) const override {
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return this->_handler ? this->_handler(T(from, end)) : void(0);
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}
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|
|
|
};
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template <typename R, typename T>
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class RPCDoneHandlerImplementationReq : public RPCDoneHandlerImplementation<R(const T&, mtpRequestId)> { // done(result, req_id)
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public:
|
|
using RPCDoneHandlerImplementation<R(const T&, mtpRequestId)>::Parent::Parent;
|
|
void operator()(mtpRequestId requestId, const mtpPrime *from, const mtpPrime *end) const override {
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|
return this->_handler ? this->_handler(T(from, end), requestId) : void(0);
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|
}
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|
|
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};
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|
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template <typename R>
|
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class RPCDoneHandlerImplementationNo : public RPCDoneHandlerImplementation<R()> { // done()
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|
public:
|
|
using RPCDoneHandlerImplementation<R()>::Parent::Parent;
|
|
void operator()(mtpRequestId requestId, const mtpPrime *from, const mtpPrime *end) const override {
|
|
return this->_handler ? this->_handler() : void(0);
|
|
}
|
|
|
|
};
|
|
|
|
template <typename R>
|
|
class RPCDoneHandlerImplementationNoReq : public RPCDoneHandlerImplementation<R(mtpRequestId)> { // done(req_id)
|
|
public:
|
|
using RPCDoneHandlerImplementation<R(mtpRequestId)>::Parent::Parent;
|
|
void operator()(mtpRequestId requestId, const mtpPrime *from, const mtpPrime *end) const override {
|
|
return this->_handler ? this->_handler(requestId) : void(0);
|
|
}
|
|
|
|
};
|
|
|
|
template <typename R>
|
|
inline RPCDoneHandlerPtr rpcDone_lambda_wrap_helper(base::lambda_unique<R(const mtpPrime*, const mtpPrime*)> &&lambda) {
|
|
return RPCDoneHandlerPtr(new RPCDoneHandlerImplementationBare<R>(std_::move(lambda)));
|
|
}
|
|
|
|
template <typename R>
|
|
inline RPCDoneHandlerPtr rpcDone_lambda_wrap_helper(base::lambda_unique<R(const mtpPrime*, const mtpPrime*, mtpRequestId)> &&lambda) {
|
|
return RPCDoneHandlerPtr(new RPCDoneHandlerImplementationBareReq<R>(std_::move(lambda)));
|
|
}
|
|
|
|
template <typename R, typename T>
|
|
inline RPCDoneHandlerPtr rpcDone_lambda_wrap_helper(base::lambda_unique<R(const T&)> &&lambda) {
|
|
return RPCDoneHandlerPtr(new RPCDoneHandlerImplementationPlain<R, T>(std_::move(lambda)));
|
|
}
|
|
|
|
template <typename R, typename T>
|
|
inline RPCDoneHandlerPtr rpcDone_lambda_wrap_helper(base::lambda_unique<R(const T&, mtpRequestId)> &&lambda) {
|
|
return RPCDoneHandlerPtr(new RPCDoneHandlerImplementationReq<R, T>(std_::move(lambda)));
|
|
}
|
|
|
|
template <typename R>
|
|
inline RPCDoneHandlerPtr rpcDone_lambda_wrap_helper(base::lambda_unique<R()> &&lambda) {
|
|
return RPCDoneHandlerPtr(new RPCDoneHandlerImplementationNo<R>(std_::move(lambda)));
|
|
}
|
|
|
|
template <typename R>
|
|
inline RPCDoneHandlerPtr rpcDone_lambda_wrap_helper(base::lambda_unique<R(mtpRequestId)> &&lambda) {
|
|
return RPCDoneHandlerPtr(new RPCDoneHandlerImplementationNoReq<R>(std_::move(lambda)));
|
|
}
|
|
|
|
template <typename Lambda, typename = std_::enable_if_t<std_::is_rvalue_reference<Lambda&&>::value>>
|
|
RPCDoneHandlerPtr rpcDone(Lambda &&lambda) {
|
|
return rpcDone_lambda_wrap_helper(LambdaGetUnique<decltype(&Lambda::operator())>(std_::move(lambda)));
|
|
}
|
|
|
|
template <typename FunctionType>
|
|
using RPCFailHandlerImplementation = RPCHandlerImplementation<RPCAbstractFailHandler, FunctionType>;
|
|
|
|
class RPCFailHandlerImplementationPlain : public RPCFailHandlerImplementation<bool(const RPCError&)> { // fail(error)
|
|
public:
|
|
using Parent::Parent;
|
|
bool operator()(mtpRequestId requestId, const RPCError &error) const override {
|
|
return _handler ? _handler(error) : true;
|
|
}
|
|
|
|
};
|
|
|
|
class RPCFailHandlerImplementationReq : public RPCFailHandlerImplementation<bool(const RPCError&, mtpRequestId)> { // fail(error, req_id)
|
|
public:
|
|
using Parent::Parent;
|
|
bool operator()(mtpRequestId requestId, const RPCError &error) const override {
|
|
return this->_handler ? this->_handler(error, requestId) : true;
|
|
}
|
|
|
|
};
|
|
|
|
class RPCFailHandlerImplementationNo : public RPCFailHandlerImplementation<bool()> { // fail()
|
|
public:
|
|
using Parent::Parent;
|
|
bool operator()(mtpRequestId requestId, const RPCError &error) const override {
|
|
return this->_handler ? this->_handler() : true;
|
|
}
|
|
|
|
};
|
|
|
|
class RPCFailHandlerImplementationNoReq : public RPCFailHandlerImplementation<bool(mtpRequestId)> { // fail(req_id)
|
|
public:
|
|
using Parent::Parent;
|
|
bool operator()(mtpRequestId requestId, const RPCError &error) const override {
|
|
return this->_handler ? this->_handler(requestId) : true;
|
|
}
|
|
|
|
};
|
|
|
|
inline RPCFailHandlerPtr rpcFail_lambda_wrap_helper(base::lambda_unique<bool(const RPCError&)> &&lambda) {
|
|
return RPCFailHandlerPtr(new RPCFailHandlerImplementationPlain(std_::move(lambda)));
|
|
}
|
|
|
|
inline RPCFailHandlerPtr rpcFail_lambda_wrap_helper(base::lambda_unique<bool(const RPCError&, mtpRequestId)> &&lambda) {
|
|
return RPCFailHandlerPtr(new RPCFailHandlerImplementationReq(std_::move(lambda)));
|
|
}
|
|
|
|
inline RPCFailHandlerPtr rpcFail_lambda_wrap_helper(base::lambda_unique<bool()> &&lambda) {
|
|
return RPCFailHandlerPtr(new RPCFailHandlerImplementationNo(std_::move(lambda)));
|
|
}
|
|
|
|
inline RPCFailHandlerPtr rpcFail_lambda_wrap_helper(base::lambda_unique<bool(mtpRequestId)> &&lambda) {
|
|
return RPCFailHandlerPtr(new RPCFailHandlerImplementationNoReq(std_::move(lambda)));
|
|
}
|
|
|
|
template <typename Lambda, typename = std_::enable_if_t<std_::is_rvalue_reference<Lambda&&>::value>>
|
|
RPCFailHandlerPtr rpcFail(Lambda &&lambda) {
|
|
return rpcFail_lambda_wrap_helper(LambdaGetUnique<decltype(&Lambda::operator())>(std_::move(lambda)));
|
|
}
|