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// Copyright (c) 2012 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/memory/weak_ptr.h"
namespace base {
struct Producer : SupportsWeakPtr<Producer> {};
struct DerivedProducer : Producer {};
struct OtherDerivedProducer : Producer {};
struct MultiplyDerivedProducer : Producer,
SupportsWeakPtr<MultiplyDerivedProducer> {};
struct Unrelated {};
struct DerivedUnrelated : Unrelated {};
#if defined(NCTEST_AUTO_DOWNCAST) // [r"fatal error: cannot initialize a member subobject of type 'base::DerivedProducer \*' with an lvalue of type 'base::Producer \*const'"]
void WontCompile() {
Producer f;
WeakPtr<Producer> ptr = f.AsWeakPtr();
WeakPtr<DerivedProducer> derived_ptr = ptr;
}
#elif defined(NCTEST_STATIC_DOWNCAST) // [r"fatal error: cannot initialize a member subobject of type 'base::DerivedProducer \*' with an lvalue of type 'base::Producer \*const'"]
void WontCompile() {
Producer f;
WeakPtr<Producer> ptr = f.AsWeakPtr();
WeakPtr<DerivedProducer> derived_ptr =
static_cast<WeakPtr<DerivedProducer> >(ptr);
}
#elif defined(NCTEST_AUTO_REF_DOWNCAST) // [r"fatal error: non-const lvalue reference to type 'WeakPtr<base::DerivedProducer>' cannot bind to a value of unrelated type 'WeakPtr<base::Producer>'"]
void WontCompile() {
Producer f;
WeakPtr<Producer> ptr = f.AsWeakPtr();
WeakPtr<DerivedProducer>& derived_ptr = ptr;
}
#elif defined(NCTEST_STATIC_REF_DOWNCAST) // [r"fatal error: non-const lvalue reference to type 'WeakPtr<base::DerivedProducer>' cannot bind to a value of unrelated type 'WeakPtr<base::Producer>'"]
void WontCompile() {
Producer f;
WeakPtr<Producer> ptr = f.AsWeakPtr();
WeakPtr<DerivedProducer>& derived_ptr =
static_cast<WeakPtr<DerivedProducer>&>(ptr);
}
#elif defined(NCTEST_STATIC_ASWEAKPTR_DOWNCAST) // [r"no matching function"]
void WontCompile() {
Producer f;
WeakPtr<DerivedProducer> ptr =
SupportsWeakPtr<Producer>::StaticAsWeakPtr<DerivedProducer>(&f);
}
#elif defined(NCTEST_UNSAFE_HELPER_DOWNCAST) // [r"fatal error: cannot initialize a member subobject of type 'base::DerivedProducer \*' with an lvalue of type 'base::Producer \*const'"]
void WontCompile() {
Producer f;
WeakPtr<DerivedProducer> ptr = AsWeakPtr(&f);
}
#elif defined(NCTEST_UNSAFE_INSTANTIATED_HELPER_DOWNCAST) // [r"no matching function"]
void WontCompile() {
Producer f;
WeakPtr<DerivedProducer> ptr = AsWeakPtr<DerivedProducer>(&f);
}
#elif defined(NCTEST_UNSAFE_WRONG_INSANTIATED_HELPER_DOWNCAST) // [r"fatal error: cannot initialize a member subobject of type 'base::DerivedProducer \*' with an lvalue of type 'base::Producer \*const'"]
void WontCompile() {
Producer f;
WeakPtr<DerivedProducer> ptr = AsWeakPtr<Producer>(&f);
}
#elif defined(NCTEST_UNSAFE_HELPER_CAST) // [r"fatal error: cannot initialize a member subobject of type 'base::OtherDerivedProducer \*' with an lvalue of type 'base::DerivedProducer \*const'"]
void WontCompile() {
DerivedProducer f;
WeakPtr<OtherDerivedProducer> ptr = AsWeakPtr(&f);
}
#elif defined(NCTEST_UNSAFE_INSTANTIATED_HELPER_SIDECAST) // [r"fatal error: no matching function for call to 'AsWeakPtr'"]
void WontCompile() {
DerivedProducer f;
WeakPtr<OtherDerivedProducer> ptr = AsWeakPtr<OtherDerivedProducer>(&f);
}
#elif defined(NCTEST_UNSAFE_WRONG_INSTANTIATED_HELPER_SIDECAST) // [r"fatal error: cannot initialize a member subobject of type 'base::OtherDerivedProducer \*' with an lvalue of type 'base::DerivedProducer \*const'"]
void WontCompile() {
DerivedProducer f;
WeakPtr<OtherDerivedProducer> ptr = AsWeakPtr<DerivedProducer>(&f);
}
#elif defined(NCTEST_UNRELATED_HELPER) // [r"fatal error: cannot initialize a member subobject of type 'base::Unrelated \*' with an lvalue of type 'base::DerivedProducer \*const'"]
void WontCompile() {
DerivedProducer f;
WeakPtr<Unrelated> ptr = AsWeakPtr(&f);
}
#elif defined(NCTEST_UNRELATED_INSTANTIATED_HELPER) // [r"no matching function"]
void WontCompile() {
DerivedProducer f;
WeakPtr<Unrelated> ptr = AsWeakPtr<Unrelated>(&f);
}
#elif defined(NCTEST_COMPLETELY_UNRELATED_HELPER) // [r"fatal error: static_assert failed \"AsWeakPtr_argument_inherits_from_SupportsWeakPtr\""]
void WontCompile() {
Unrelated f;
WeakPtr<Unrelated> ptr = AsWeakPtr(&f);
}
#elif defined(NCTEST_DERIVED_COMPLETELY_UNRELATED_HELPER) // [r"fatal error: static_assert failed \"AsWeakPtr_argument_inherits_from_SupportsWeakPtr\""]
void WontCompile() {
DerivedUnrelated f;
WeakPtr<Unrelated> ptr = AsWeakPtr(&f);
}
#elif defined(NCTEST_AMBIGUOUS_ANCESTORS) // [r"fatal error: ambiguous conversion from derived class 'base::MultiplyDerivedProducer' to base class 'base::internal::SupportsWeakPtrBase':"]
void WontCompile() {
MultiplyDerivedProducer f;
WeakPtr<MultiplyDerivedProducer> ptr = AsWeakPtr(&f);
}
#endif
}
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