blob: 93ef0c10d6a24c5de7287e800c3d5204db51186d [file] [log] [blame]
// Copyright 2017 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/bind.h"
namespace base {
class Location;
namespace internal {
template <typename F, typename Signature>
struct BindLambdaHelper;
template <typename F, typename R, typename... Args>
struct BindLambdaHelper<F, R(Args...)> {
static R Run(const std::decay_t<F>& f, Args... args) {
return f(std::forward<Args>(args)...);
} // namespace internal
// A variant of Bind() that can bind capturing lambdas for testing.
// This doesn't support extra arguments binding as the lambda itself can do.
template <typename F>
decltype(auto) BindLambdaForTesting(F&& f) {
using Signature = internal::ExtractCallableRunType<std::decay_t<F>>;
return BindRepeating(&internal::BindLambdaHelper<F, Signature>::Run,
// Returns a closure that fails on destruction if it hasn't been run.
OnceClosure MakeExpectedRunClosure(const Location& location);
// Returns a closure that fails the test if run.
OnceClosure MakeExpectedNotRunClosure(const Location& location);
} // namespace base