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// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// This is a "No Compile Test" suite.
// http://dev.chromium.org/developers/testing/no-compile-tests
#include "base/memory/weak_ptr.h"
namespace base {
struct Producer {
WeakPtr<Producer> AsWeakPtr() {
return weak_ptr_factory_.GetWeakPtr();
}
WeakPtrFactory<Producer> weak_ptr_factory_{this};
};
struct DerivedProducer : Producer {};
struct OtherDerivedProducer : Producer {};
struct Unrelated {};
struct DerivedUnrelated : Unrelated {};
void DowncastDisallowed() {
Producer f;
WeakPtr<Producer> ptr = f.AsWeakPtr();
{
WeakPtr<DerivedProducer> derived_ptr = ptr; // expected-error {{no viable conversion from 'WeakPtr<Producer>' to 'WeakPtr<DerivedProducer>'}}
}
{
WeakPtr<DerivedProducer> derived_ptr =
static_cast<WeakPtr<DerivedProducer> >(ptr); // expected-error {{no matching conversion for static_cast from 'WeakPtr<Producer>' to 'WeakPtr<DerivedProducer>'}}
}
}
void RefDowncastDisallowed() {
Producer f;
WeakPtr<Producer> ptr = f.AsWeakPtr();
{
WeakPtr<DerivedProducer>& derived_ptr = ptr; // expected-error {{non-const lvalue reference to type 'WeakPtr<DerivedProducer>' cannot bind to a value of unrelated type 'WeakPtr<Producer>'}}
}
{
WeakPtr<DerivedProducer>& derived_ptr =
static_cast<WeakPtr<DerivedProducer>&>(ptr); // expected-error {{non-const lvalue reference to type 'WeakPtr<DerivedProducer>' cannot bind to a value of unrelated type 'WeakPtr<Producer>'}}
}
}
void VendingMutablePtrsFromConstFactoryDisallowed() {
{
Unrelated unrelated;
const WeakPtrFactory<const Unrelated> factory(&unrelated);
factory.GetMutableWeakPtr(); // expected-error {{invalid reference to function 'GetMutableWeakPtr': constraints not satisfied}}
}
}
void UnauthorizedBindToCurrentSequenceDisallowed() {
Unrelated unrelated;
WeakPtrFactory<Unrelated> factory(&unrelated);
factory.BindToCurrentSequence(
subtle::BindWeakPtrFactoryPassKey()); // expected-error {{calling a private constructor of class 'base::subtle::BindWeakPtrFactoryPassKey'}}
}
} // namespace base
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