// 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. // 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 : SupportsWeakPtr {}; struct DerivedProducer : Producer {}; struct OtherDerivedProducer : Producer {}; struct MultiplyDerivedProducer : Producer, SupportsWeakPtr {}; struct Unrelated {}; struct DerivedUnrelated : Unrelated {}; #if defined(NCTEST_AUTO_DOWNCAST) // [r"cannot initialize a variable of type 'base::DerivedProducer \*' with an rvalue of type 'base::Producer \*'"] void WontCompile() { Producer f; WeakPtr ptr = f.AsWeakPtr(); WeakPtr derived_ptr = ptr; } #elif defined(NCTEST_STATIC_DOWNCAST) // [r"cannot initialize a variable of type 'base::DerivedProducer \*' with an rvalue of type 'base::Producer \*'"] void WontCompile() { Producer f; WeakPtr ptr = f.AsWeakPtr(); WeakPtr derived_ptr = static_cast >(ptr); } #elif defined(NCTEST_AUTO_REF_DOWNCAST) // [r"fatal error: non-const lvalue reference to type 'WeakPtr' cannot bind to a value of unrelated type 'WeakPtr'"] void WontCompile() { Producer f; WeakPtr ptr = f.AsWeakPtr(); WeakPtr& derived_ptr = ptr; } #elif defined(NCTEST_STATIC_REF_DOWNCAST) // [r"fatal error: non-const lvalue reference to type 'WeakPtr' cannot bind to a value of unrelated type 'WeakPtr'"] void WontCompile() { Producer f; WeakPtr ptr = f.AsWeakPtr(); WeakPtr& derived_ptr = static_cast&>(ptr); } #elif defined(NCTEST_STATIC_ASWEAKPTR_DOWNCAST) // [r"no matching function"] void WontCompile() { Producer f; WeakPtr ptr = SupportsWeakPtr::StaticAsWeakPtr(&f); } #elif defined(NCTEST_UNSAFE_HELPER_DOWNCAST) // [r"cannot initialize a variable of type 'base::DerivedProducer \*' with an rvalue of type 'base::Producer \*'"] void WontCompile() { Producer f; WeakPtr ptr = AsWeakPtr(&f); } #elif defined(NCTEST_UNSAFE_INSTANTIATED_HELPER_DOWNCAST) // [r"no matching function"] void WontCompile() { Producer f; WeakPtr ptr = AsWeakPtr(&f); } #elif defined(NCTEST_UNSAFE_WRONG_INSANTIATED_HELPER_DOWNCAST) // [r"cannot initialize a variable of type 'base::DerivedProducer \*' with an rvalue of type 'base::Producer \*'"] void WontCompile() { Producer f; WeakPtr ptr = AsWeakPtr(&f); } #elif defined(NCTEST_UNSAFE_HELPER_CAST) // [r"cannot initialize a variable of type 'base::OtherDerivedProducer \*' with an rvalue of type 'base::DerivedProducer \*'"] void WontCompile() { DerivedProducer f; WeakPtr 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 ptr = AsWeakPtr(&f); } #elif defined(NCTEST_UNSAFE_WRONG_INSTANTIATED_HELPER_SIDECAST) // [r"cannot initialize a variable of type 'base::OtherDerivedProducer \*' with an rvalue of type 'base::DerivedProducer \*'"] void WontCompile() { DerivedProducer f; WeakPtr ptr = AsWeakPtr(&f); } #elif defined(NCTEST_UNRELATED_HELPER) // [r"cannot initialize a variable of type 'base::Unrelated \*' with an rvalue of type 'base::DerivedProducer \*'"] void WontCompile() { DerivedProducer f; WeakPtr ptr = AsWeakPtr(&f); } #elif defined(NCTEST_UNRELATED_INSTANTIATED_HELPER) // [r"no matching function"] void WontCompile() { DerivedProducer f; WeakPtr ptr = AsWeakPtr(&f); } #elif defined(NCTEST_COMPLETELY_UNRELATED_HELPER) // [r"fatal error: static assertion failed due to requirement 'std::is_base_of::value': AsWeakPtr argument must inherit from SupportsWeakPtr"] void WontCompile() { Unrelated f; WeakPtr ptr = AsWeakPtr(&f); } #elif defined(NCTEST_DERIVED_COMPLETELY_UNRELATED_HELPER) // [r"fatal error: static assertion failed due to requirement 'std::is_base_of::value': AsWeakPtr argument must inherit from SupportsWeakPtr"] void WontCompile() { DerivedUnrelated f; WeakPtr ptr = AsWeakPtr(&f); } #elif defined(NCTEST_AMBIGUOUS_ANCESTORS) // [r"fatal error: (use of undeclared identifier|no matching function for call to) 'AsWeakPtrImpl'"] // TODO(crbug.com/1155145): Update expectation after rolling clang. void WontCompile() { MultiplyDerivedProducer f; WeakPtr ptr = AsWeakPtr(&f); } #endif }