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50 lines
1.4 KiB
Plaintext
50 lines
1.4 KiB
Plaintext
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// Copyright 2013 The Chromium Authors
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// This is a "No Compile Test" suite.
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// http://dev.chromium.org/developers/testing/no-compile-tests
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#include "base/callback_list.h"
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#include <memory>
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#include <utility>
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#include "base/functional/bind.h"
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#include "base/functional/callback_helpers.h"
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namespace base {
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class Foo {
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public:
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Foo() = default;
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~Foo() = default;
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};
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class FooListener {
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public:
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FooListener() = default;
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FooListener(const FooListener&) = delete;
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FooListener& operator=(const FooListener&) = delete;
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void GotAScopedFoo(std::unique_ptr<Foo> f) { foo_ = std::move(f); }
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std::unique_ptr<Foo> foo_;
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};
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// Callbacks run with a move-only typed parameter.
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//
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// CallbackList does not support move-only typed parameters. Notify() is
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// designed to take zero or more parameters, and run each registered callback
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// with them. With move-only types, the parameter will be set to NULL after the
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// first callback has been run.
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void WontCompile() {
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FooListener f;
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RepeatingCallbackList<void(std::unique_ptr<Foo>)> c1;
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CallbackListSubscription sub =
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c1.Add(BindRepeating(&FooListener::GotAScopedFoo, Unretained(&f)));
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c1.Notify(std::unique_ptr<Foo>(new Foo())); // expected-error@*:* {{call to implicitly-deleted copy constructor of 'std::unique_ptr<base::Foo>'}}
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}
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} // namespace base
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