base/bind_unittest.nc - chromium/src - Git at Google

 // Copyright (c) 2011 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 <utility>

 #include "base/bind.h"
 #include "base/callback.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/test/bind_test_util.h"

 namespace base {

 // Do not put everything inside an anonymous namespace.  If you do, many of the
 // helper function declarations will generate unused definition warnings.

 static const int kParentValue = 1;
 static const int kChildValue = 2;

 class NoRef {
  public:
   void VoidMethod0() {}
   void VoidConstMethod0() const {}
   int IntMethod0() { return 1; }
 };

 class HasRef : public NoRef, public base::RefCounted<HasRef> {
 };

 class Parent {
  public:
   void AddRef() const {}
   void Release() const {}
   virtual void VirtualSet() { value = kParentValue; }
   void NonVirtualSet() { value = kParentValue; }
   int value;
 };

 class Child : public Parent {
  public:
   virtual void VirtualSet() { value = kChildValue; }
   void NonVirtualSet() { value = kChildValue; }
 };

 class NoRefParent {
  public:
   virtual void VirtualSet() { value = kParentValue; }
   void NonVirtualSet() { value = kParentValue; }
   int value;
 };

 class NoRefChild : public NoRefParent {
   virtual void VirtualSet() { value = kChildValue; }
   void NonVirtualSet() { value = kChildValue; }
 };

 template <typename T>
 T PolymorphicIdentity(T t) {
   return t;
 }

 int UnwrapParentRef(Parent& p) {
   return p.value;
 }

 template <typename T>
 void VoidPolymorphic1(T t) {
 }

 void TakesMoveOnly(std::unique_ptr<int>) {
 }

 struct NonEmptyFunctor {
   int x;
   void operator()() const {}
 };

 #if defined(NCTEST_METHOD_ON_CONST_OBJECT)  // [r"fatal error: static_assert failed due to requirement 'param_is_forwardable' \"Bound argument |i| of type |Arg| cannot be forwarded as |Unwrapped| to the bound functor, which declares it as |Param|.\""]
 // Method bound to const-object.
 //
 // Only const methods should be allowed to work with const objects.
 void WontCompile() {
   HasRef has_ref;
   const HasRef* const_has_ref_ptr_ = &has_ref;
   RepeatingCallback<void()> method_to_const_cb =
       BindRepeating(&HasRef::VoidMethod0, const_has_ref_ptr_);
   method_to_const_cb.Run();
 }

 #elif defined(NCTEST_METHOD_BIND_NEEDS_REFCOUNTED_OBJECT)  // [r"fatal error: static_assert failed due to requirement '!std::is_pointer<base::NoRef *>::value || IsRefCountedType<base::NoRef, void>::value' \"Receivers may not be raw pointers. If using a raw pointer here is safe and has no lifetime concerns, use base::Unretained() and document why it's safe.\""]


 // Method bound to non-refcounted object.
 //
 // We require refcounts unless you have Unretained().
 void WontCompile() {
   NoRef no_ref;
   RepeatingCallback<void()> no_ref_cb =
       BindRepeating(&NoRef::VoidMethod0, &no_ref);
   no_ref_cb.Run();
 }

 #elif defined(NCTEST_CONST_METHOD_NEEDS_REFCOUNTED_OBJECT)  // [r"fatal error: static_assert failed due to requirement '!std::is_pointer<base::NoRef *>::value || IsRefCountedType<base::NoRef, void>::value' \"Receivers may not be raw pointers. If using a raw pointer here is safe and has no lifetime concerns, use base::Unretained() and document why it's safe.\""]

 // Const Method bound to non-refcounted object.
 //
 // We require refcounts unless you have Unretained().
 void WontCompile() {
   NoRef no_ref;
   RepeatingCallback<void()> no_ref_const_cb =
       BindRepeating(&NoRef::VoidConstMethod0, &no_ref);
   no_ref_const_cb.Run();
 }

 #elif defined(NCTEST_CONST_POINTER)  // [r"fatal error: static_assert failed due to requirement 'param_is_forwardable' \"Bound argument |i| of type |Arg| cannot be forwarded as |Unwrapped| to the bound functor, which declares it as |Param|.\""]

 // Const argument used with non-const pointer parameter of same type.
 //
 // This is just a const-correctness check.
 void WontCompile() {
   const NoRef* const_no_ref_ptr;
   RepeatingCallback<NoRef*()> pointer_same_cb =
       BindRepeating(&PolymorphicIdentity<NoRef*>, const_no_ref_ptr);
   pointer_same_cb.Run();
 }

 #elif defined(NCTEST_CONST_POINTER_SUBTYPE)  // [r"fatal error: static_assert failed due to requirement 'param_is_forwardable' \"Bound argument |i| of type |Arg| cannot be forwarded as |Unwrapped| to the bound functor, which declares it as |Param|.\""]

 // Const argument used with non-const pointer parameter of super type.
 //
 // This is just a const-correctness check.
 void WontCompile() {
   const NoRefChild* const_child_ptr;
   RepeatingCallback<NoRefParent*()> pointer_super_cb =
     BindRepeating(&PolymorphicIdentity<NoRefParent*>, const_child_ptr);
   pointer_super_cb.Run();
 }

 #elif defined(DISABLED_NCTEST_DISALLOW_NON_CONST_REF_PARAM)  // [r"fatal error: no member named 'AddRef' in 'base::NoRef'"]
 // TODO(dcheng): I think there's a type safety promotion issue here where we can
 // pass a const ref to a non const-ref function, or vice versa accidentally. Or
 // we make a copy accidentally. Check.

 // Functions with reference parameters, unsupported.
 //
 // First, non-const reference parameters are disallowed by the Google
 // style guide. Second, since we are doing argument forwarding it becomes
 // very tricky to avoid copies, maintain const correctness, and not
 // accidentally have the function be modifying a temporary, or a copy.
 void WontCompile() {
   Parent p;
   RepeatingCallback<int(Parent&)> ref_arg_cb = BindRepeating(&UnwrapParentRef);
   ref_arg_cb.Run(p);
 }

 #elif defined(NCTEST_DISALLOW_BIND_TO_NON_CONST_REF_PARAM)  // [r"fatal error: static_assert failed due to requirement 'param_is_forwardable' \"Bound argument |i| of type |Arg| cannot be forwarded as |Unwrapped| to the bound functor, which declares it as |Param|.\""]

 // Binding functions with reference parameters, unsupported.
 //
 // See comment in NCTEST_DISALLOW_NON_CONST_REF_PARAM
 void WontCompile() {
   Parent p;
   RepeatingCallback<int()> ref_cb = BindRepeating(&UnwrapParentRef, p);
   ref_cb.Run();
 }

 #elif defined(NCTEST_NO_IMPLICIT_ARRAY_PTR_CONVERSION)  // [r"fatal error: static_assert failed due to requirement '!std::is_array<base::HasRef \[10\]>::value' \"First bound argument to a method cannot be an array.\""]

 // A method should not be bindable with an array of objects.
 //
 // This is likely not wanted behavior. We specifically check for it though
 // because it is possible, depending on how you implement prebinding, to
 // implicitly convert an array type to a pointer type.
 void WontCompile() {
   HasRef p[10];
   RepeatingCallback<void()> method_bound_to_array_cb =
       BindRepeating(&HasRef::VoidMethod0, p);
   method_bound_to_array_cb.Run();
 }

 #elif defined(NCTEST_NO_RVALUE_RAW_PTR_FOR_REFCOUNTED_TYPES)  // [r"fatal error: static_assert failed due to requirement '!HasRefCountedTypeAsRawPtr<base::HasRef \*>::value' \"A parameter is a refcounted type and needs scoped_refptr.\""]

 // Refcounted types should not be bound as a raw pointer.
 void WontCompile() {
   HasRef for_raw_ptr;
   int a;
   RepeatingCallback<void()> ref_count_as_raw_ptr_a =
       BindRepeating(&VoidPolymorphic1<int*>, &a);
   RepeatingCallback<void()> ref_count_as_raw_ptr =
       BindRepeating(&VoidPolymorphic1<HasRef*>, &for_raw_ptr);
 }

 #elif defined(NCTEST_NO_LVALUE_RAW_PTR_FOR_REFCOUNTED_TYPES)  // [r"fatal error: static_assert failed due to requirement '!HasRefCountedTypeAsRawPtr<base::HasRef \*>::value' \"A parameter is a refcounted type and needs scoped_refptr.\""]

 // Refcounted types should not be bound as a raw pointer.
 void WontCompile() {
   HasRef* for_raw_ptr = nullptr;
   RepeatingCallback<void()> ref_count_as_raw_ptr =
       BindRepeating(&VoidPolymorphic1<HasRef*>, for_raw_ptr);
 }

 #elif defined(NCTEST_NO_RVALUE_CONST_RAW_PTR_FOR_REFCOUNTED_TYPES)  // [r"fatal error: static_assert failed due to requirement '!HasRefCountedTypeAsRawPtr<const base::HasRef \*>::value' \"A parameter is a refcounted type and needs scoped_refptr.\""]

 // Refcounted types should not be bound as a raw pointer.
 void WontCompile() {
   const HasRef for_raw_ptr;
   RepeatingCallback<void()> ref_count_as_raw_ptr =
       BindRepeating(&VoidPolymorphic1<const HasRef*>, &for_raw_ptr);
 }

 #elif defined(NCTEST_NO_LVALUE_CONST_RAW_PTR_FOR_REFCOUNTED_TYPES)  // [r"fatal error: static_assert failed due to requirement '!HasRefCountedTypeAsRawPtr<const base::HasRef \*>::value' \"A parameter is a refcounted type and needs scoped_refptr.\""]

 // Refcounted types should not be bound as a raw pointer.
 void WontCompile() {
   const HasRef* for_raw_ptr = nullptr;
   RepeatingCallback<void()> ref_count_as_raw_ptr =
       BindRepeating(&VoidPolymorphic1<const HasRef*>, for_raw_ptr);
 }

 #elif defined(NCTEST_WEAKPTR_BIND_MUST_RETURN_VOID)  // [r"fatal error: static_assert failed due to requirement 'std::is_void<int>::value' \"weak_ptrs can only bind to methods without return values\""]

 // WeakPtrs cannot be bound to methods with return types.
 void WontCompile() {
   NoRef no_ref;
   WeakPtrFactory<NoRef> weak_factory(&no_ref);
   RepeatingCallback<int()> weak_ptr_with_non_void_return_type =
       BindRepeating(&NoRef::IntMethod0, weak_factory.GetWeakPtr());
   weak_ptr_with_non_void_return_type.Run();
 }

 #elif defined(NCTEST_DISALLOW_ASSIGN_DIFFERENT_TYPES)  // [r"fatal error: no viable conversion from 'RepeatingCallback<MakeUnboundRunType<void \(\*\)\(int\)>>' to 'RepeatingCallback<void \(\)>'"]

 // Bind result cannot be assigned to Callbacks with a mismatching type.
 void WontCompile() {
   RepeatingClosure callback_mismatches_bind_type =
       BindRepeating(&VoidPolymorphic1<int>);
 }

 #elif defined(NCTEST_DISALLOW_CAPTURING_LAMBDA)  // [r"fatal error: implicit instantiation of undefined template 'base::internal::FunctorTraits<\(lambda at (\.\./)+base/bind_unittest.nc:[0-9]+:[0-9]+\), void>'"]

 void WontCompile() {
   int i = 0, j = 0;
   BindOnce([i,&j]() {j = i;});
 }

 #elif defined(NCTEST_DISALLOW_ONCECALLBACK_RUN_ON_LVALUE)  // [r"fatal error: static_assert failed due to requirement '!sizeof \(\*this\)' \"OnceCallback::Run\(\) may only be invoked on a non-const rvalue, i\.e\. std::move\(callback\).Run\(\).\""]

 void WontCompile() {
   OnceClosure cb = BindOnce([] {});
   cb.Run();
 }

 #elif defined(NCTEST_DISALLOW_ONCECALLBACK_RUN_ON_CONST_LVALUE)  // [r"fatal error: static_assert failed due to requirement '!sizeof \(\*this\)' \"OnceCallback::Run\(\) may only be invoked on a non-const rvalue, i\.e\. std::move\(callback\).Run\(\).\""]

 void WontCompile() {
   const OnceClosure cb = BindOnce([] {});
   cb.Run();
 }

 #elif defined(NCTEST_DISALLOW_ONCECALLBACK_RUN_ON_CONST_RVALUE)  // [r"fatal error: static_assert failed due to requirement '!sizeof \(\*this\)' \"OnceCallback::Run\(\) may only be invoked on a non-const rvalue, i\.e\. std::move\(callback\).Run\(\).\""]

 void WontCompile() {
   const OnceClosure cb = BindOnce([] {});
   std::move(cb).Run();
 }

 #elif defined(NCTEST_DISALLOW_BIND_ONCECALLBACK)  // [r"fatal error: static_assert failed due to requirement '!base::internal::IsOnceCallback<base::OnceCallback<void \(int\)> >\(\)' \"BindRepeating cannot bind OnceCallback. Use BindOnce with std::move\(\).\""]

 void WontCompile() {
   BindRepeating(BindOnce([](int) {}), 42);
 }

 #elif defined(NCTEST_DISALLOW_BINDONCE_LVALUE_ONCECALLBACK)  // [r"fatal error: static_assert failed due to requirement '!internal::IsOnceCallback<std::decay_t<OnceCallback<void (int)> &> >() || (std::is_rvalue_reference<OnceCallback<void (int)> &>() && !std::is_const<std::remove_reference_t<OnceCallback<void (int)> &> >())' \"BindOnce requires non-const rvalue for OnceCallback binding. I.e.: base::BindOnce(std::move(callback)).\""]
 void WontCompile() {
   auto cb = BindOnce([](int) {});
   BindOnce(cb, 42);
 }

 #elif defined(NCTEST_DISALLOW_BINDONCE_RVALUE_CONST_ONCECALLBACK)  // [r"fatal error: static_assert failed due to requirement '!internal::IsOnceCallback<std::decay_t<const OnceCallback<void (int)> > >() || (std::is_rvalue_reference<const OnceCallback<void (int)> &&>() && !std::is_const<std::remove_reference_t<const OnceCallback<void (int)> > >())' \"BindOnce requires non-const rvalue for OnceCallback binding. I.e.: base::BindOnce(std::move(callback)).\""]

 void WontCompile() {
   const auto cb = BindOnce([](int) {});
   BindOnce(std::move(cb), 42);
 }

 #elif defined(NCTEST_BINDONCE_MOVEONLY_TYPE_BY_VALUE)  // [r"fatal error: static_assert failed due to requirement 'arg_is_storable || !std::is_constructible<std::__1::unique_ptr<int, std::__1::default_delete<int> >, std::__1::unique_ptr<int, std::__1::default_delete<int> > &&>::value' \"Bound argument |i| is move-only but will be bound by copy. Ensure |Arg| is mutable and bound using std::move\(\).\""]

 void WontCompile() {
   std::unique_ptr<int> x;
   BindOnce(&TakesMoveOnly, x);
 }

 #elif defined(NCTEST_BIND_MOVEONLY_TYPE_BY_VALUE)  // [r"Bound argument \|i\| is move-only but will be forwarded by copy\. Ensure \|Arg\| is bound using base::Passed\(\), not std::move\(\)."]

 void WontCompile() {
   std::unique_ptr<int> x;
   BindRepeating(&TakesMoveOnly, x);
 }

 #elif defined(NCTEST_BIND_MOVEONLY_TYPE_WITH_STDMOVE)  // [r"Bound argument \|i\| is move-only but will be forwarded by copy\. Ensure \|Arg\| is bound using base::Passed\(\), not std::move\(\)."]

 void WontCompile() {
   std::unique_ptr<int> x;
   BindRepeating(&TakesMoveOnly, std::move(x));
 }

 #elif defined(NCTEST_BIND_NON_EMPTY_FUNCTOR)  // [r"fatal error: implicit instantiation of undefined template 'base::internal::FunctorTraits<base::NonEmptyFunctor, void>'"]

 void WontCompile() {
   BindRepeating(NonEmptyFunctor());
 }

 #elif defined(NCTEST_DISALLOW_BINDLAMBDAFORTESTING_LVALUE_MUTABLE_LAMBDA)  // [r"BindLambdaForTesting requires non-const rvalue for mutable lambda binding\. I\.e\.: base::BindLambdaForTesting\(std::move\(lambda\)\)."]
 void WontCompile() {
   int foo = 42;
   auto mutable_lambda = [&]() mutable {};
   BindLambdaForTesting(mutable_lambda);
 }

 #elif defined(NCTEST_DISALLOW_BINDLAMBDAFORTESTING_RVALUE_CONST_MUTABLE_LAMBDA)  // [r"BindLambdaForTesting requires non-const rvalue for mutable lambda binding\. I\.e\.: base::BindLambdaForTesting\(std::move\(lambda\)\)."]

 void WontCompile() {
   int foo = 42;
   const auto mutable_lambda = [&]() mutable {};
   BindLambdaForTesting(std::move(mutable_lambda));
 }
 #endif

 }  // namespace base
	// Copyright (c) 2011 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 <utility>

	#include "base/bind.h"
	#include "base/callback.h"
	#include "base/macros.h"
	#include "base/memory/ref_counted.h"
	#include "base/test/bind_test_util.h"

	namespace base {

	// Do not put everything inside an anonymous namespace. If you do, many of the
	// helper function declarations will generate unused definition warnings.

	static const int kParentValue = 1;
	static const int kChildValue = 2;

	class NoRef {
	public:
	void VoidMethod0() {}
	void VoidConstMethod0() const {}
	int IntMethod0() { return 1; }
	};

	class HasRef : public NoRef, public base::RefCounted<HasRef> {
	};

	class Parent {
	public:
	void AddRef() const {}
	void Release() const {}
	virtual void VirtualSet() { value = kParentValue; }
	void NonVirtualSet() { value = kParentValue; }
	int value;
	};

	class Child : public Parent {
	public:
	virtual void VirtualSet() { value = kChildValue; }
	void NonVirtualSet() { value = kChildValue; }
	};

	class NoRefParent {
	public:
	virtual void VirtualSet() { value = kParentValue; }
	void NonVirtualSet() { value = kParentValue; }
	int value;
	};

	class NoRefChild : public NoRefParent {
	virtual void VirtualSet() { value = kChildValue; }
	void NonVirtualSet() { value = kChildValue; }
	};

	template <typename T>
	T PolymorphicIdentity(T t) {
	return t;
	}

	int UnwrapParentRef(Parent& p) {
	return p.value;
	}

	template <typename T>
	void VoidPolymorphic1(T t) {
	}

	void TakesMoveOnly(std::unique_ptr<int>) {
	}

	struct NonEmptyFunctor {
	int x;
	void operator()() const {}
	};

	#if defined(NCTEST_METHOD_ON_CONST_OBJECT) // [r"fatal error: static_assert failed due to requirement 'param_is_forwardable' \"Bound argument \|i\| of type \|Arg\| cannot be forwarded as \|Unwrapped\| to the bound functor, which declares it as \|Param\|.\""]
	// Method bound to const-object.
	//
	// Only const methods should be allowed to work with const objects.
	void WontCompile() {
	HasRef has_ref;
	const HasRef* const_has_ref_ptr_ = &has_ref;
	RepeatingCallback<void()> method_to_const_cb =
	BindRepeating(&HasRef::VoidMethod0, const_has_ref_ptr_);
	method_to_const_cb.Run();
	}

	#elif defined(NCTEST_METHOD_BIND_NEEDS_REFCOUNTED_OBJECT) // [r"fatal error: static_assert failed due to requirement '!std::is_pointer<base::NoRef *>::value \|\| IsRefCountedType<base::NoRef, void>::value' \"Receivers may not be raw pointers. If using a raw pointer here is safe and has no lifetime concerns, use base::Unretained() and document why it's safe.\""]


	// Method bound to non-refcounted object.
	//
	// We require refcounts unless you have Unretained().
	void WontCompile() {
	NoRef no_ref;
	RepeatingCallback<void()> no_ref_cb =
	BindRepeating(&NoRef::VoidMethod0, &no_ref);
	no_ref_cb.Run();
	}

	#elif defined(NCTEST_CONST_METHOD_NEEDS_REFCOUNTED_OBJECT) // [r"fatal error: static_assert failed due to requirement '!std::is_pointer<base::NoRef *>::value \|\| IsRefCountedType<base::NoRef, void>::value' \"Receivers may not be raw pointers. If using a raw pointer here is safe and has no lifetime concerns, use base::Unretained() and document why it's safe.\""]

	// Const Method bound to non-refcounted object.
	//
	// We require refcounts unless you have Unretained().
	void WontCompile() {
	NoRef no_ref;
	RepeatingCallback<void()> no_ref_const_cb =
	BindRepeating(&NoRef::VoidConstMethod0, &no_ref);
	no_ref_const_cb.Run();
	}

	#elif defined(NCTEST_CONST_POINTER) // [r"fatal error: static_assert failed due to requirement 'param_is_forwardable' \"Bound argument \|i\| of type \|Arg\| cannot be forwarded as \|Unwrapped\| to the bound functor, which declares it as \|Param\|.\""]

	// Const argument used with non-const pointer parameter of same type.
	//
	// This is just a const-correctness check.
	void WontCompile() {
	const NoRef* const_no_ref_ptr;
	RepeatingCallback<NoRef*()> pointer_same_cb =
	BindRepeating(&PolymorphicIdentity<NoRef*>, const_no_ref_ptr);
	pointer_same_cb.Run();
	}

	#elif defined(NCTEST_CONST_POINTER_SUBTYPE) // [r"fatal error: static_assert failed due to requirement 'param_is_forwardable' \"Bound argument \|i\| of type \|Arg\| cannot be forwarded as \|Unwrapped\| to the bound functor, which declares it as \|Param\|.\""]

	// Const argument used with non-const pointer parameter of super type.
	//
	// This is just a const-correctness check.
	void WontCompile() {
	const NoRefChild* const_child_ptr;
	RepeatingCallback<NoRefParent*()> pointer_super_cb =
	BindRepeating(&PolymorphicIdentity<NoRefParent*>, const_child_ptr);
	pointer_super_cb.Run();
	}

	#elif defined(DISABLED_NCTEST_DISALLOW_NON_CONST_REF_PARAM) // [r"fatal error: no member named 'AddRef' in 'base::NoRef'"]
	// TODO(dcheng): I think there's a type safety promotion issue here where we can
	// pass a const ref to a non const-ref function, or vice versa accidentally. Or
	// we make a copy accidentally. Check.

	// Functions with reference parameters, unsupported.
	//
	// First, non-const reference parameters are disallowed by the Google
	// style guide. Second, since we are doing argument forwarding it becomes
	// very tricky to avoid copies, maintain const correctness, and not
	// accidentally have the function be modifying a temporary, or a copy.
	void WontCompile() {
	Parent p;
	RepeatingCallback<int(Parent&)> ref_arg_cb = BindRepeating(&UnwrapParentRef);
	ref_arg_cb.Run(p);
	}

	#elif defined(NCTEST_DISALLOW_BIND_TO_NON_CONST_REF_PARAM) // [r"fatal error: static_assert failed due to requirement 'param_is_forwardable' \"Bound argument \|i\| of type \|Arg\| cannot be forwarded as \|Unwrapped\| to the bound functor, which declares it as \|Param\|.\""]

	// Binding functions with reference parameters, unsupported.
	//
	// See comment in NCTEST_DISALLOW_NON_CONST_REF_PARAM
	void WontCompile() {
	Parent p;
	RepeatingCallback<int()> ref_cb = BindRepeating(&UnwrapParentRef, p);
	ref_cb.Run();
	}

	#elif defined(NCTEST_NO_IMPLICIT_ARRAY_PTR_CONVERSION) // [r"fatal error: static_assert failed due to requirement '!std::is_array<base::HasRef \[10\]>::value' \"First bound argument to a method cannot be an array.\""]

	// A method should not be bindable with an array of objects.
	//
	// This is likely not wanted behavior. We specifically check for it though
	// because it is possible, depending on how you implement prebinding, to
	// implicitly convert an array type to a pointer type.
	void WontCompile() {
	HasRef p[10];
	RepeatingCallback<void()> method_bound_to_array_cb =
	BindRepeating(&HasRef::VoidMethod0, p);
	method_bound_to_array_cb.Run();
	}

	#elif defined(NCTEST_NO_RVALUE_RAW_PTR_FOR_REFCOUNTED_TYPES) // [r"fatal error: static_assert failed due to requirement '!HasRefCountedTypeAsRawPtr<base::HasRef \*>::value' \"A parameter is a refcounted type and needs scoped_refptr.\""]

	// Refcounted types should not be bound as a raw pointer.
	void WontCompile() {
	HasRef for_raw_ptr;
	int a;
	RepeatingCallback<void()> ref_count_as_raw_ptr_a =
	BindRepeating(&VoidPolymorphic1<int*>, &a);
	RepeatingCallback<void()> ref_count_as_raw_ptr =
	BindRepeating(&VoidPolymorphic1<HasRef*>, &for_raw_ptr);
	}

	#elif defined(NCTEST_NO_LVALUE_RAW_PTR_FOR_REFCOUNTED_TYPES) // [r"fatal error: static_assert failed due to requirement '!HasRefCountedTypeAsRawPtr<base::HasRef \*>::value' \"A parameter is a refcounted type and needs scoped_refptr.\""]

	// Refcounted types should not be bound as a raw pointer.
	void WontCompile() {
	HasRef* for_raw_ptr = nullptr;
	RepeatingCallback<void()> ref_count_as_raw_ptr =
	BindRepeating(&VoidPolymorphic1<HasRef*>, for_raw_ptr);
	}

	#elif defined(NCTEST_NO_RVALUE_CONST_RAW_PTR_FOR_REFCOUNTED_TYPES) // [r"fatal error: static_assert failed due to requirement '!HasRefCountedTypeAsRawPtr<const base::HasRef \*>::value' \"A parameter is a refcounted type and needs scoped_refptr.\""]

	// Refcounted types should not be bound as a raw pointer.
	void WontCompile() {
	const HasRef for_raw_ptr;
	RepeatingCallback<void()> ref_count_as_raw_ptr =
	BindRepeating(&VoidPolymorphic1<const HasRef*>, &for_raw_ptr);
	}

	#elif defined(NCTEST_NO_LVALUE_CONST_RAW_PTR_FOR_REFCOUNTED_TYPES) // [r"fatal error: static_assert failed due to requirement '!HasRefCountedTypeAsRawPtr<const base::HasRef \*>::value' \"A parameter is a refcounted type and needs scoped_refptr.\""]

	// Refcounted types should not be bound as a raw pointer.
	void WontCompile() {
	const HasRef* for_raw_ptr = nullptr;
	RepeatingCallback<void()> ref_count_as_raw_ptr =
	BindRepeating(&VoidPolymorphic1<const HasRef*>, for_raw_ptr);
	}

	#elif defined(NCTEST_WEAKPTR_BIND_MUST_RETURN_VOID) // [r"fatal error: static_assert failed due to requirement 'std::is_void<int>::value' \"weak_ptrs can only bind to methods without return values\""]

	// WeakPtrs cannot be bound to methods with return types.
	void WontCompile() {
	NoRef no_ref;
	WeakPtrFactory<NoRef> weak_factory(&no_ref);
	RepeatingCallback<int()> weak_ptr_with_non_void_return_type =
	BindRepeating(&NoRef::IntMethod0, weak_factory.GetWeakPtr());
	weak_ptr_with_non_void_return_type.Run();
	}

	#elif defined(NCTEST_DISALLOW_ASSIGN_DIFFERENT_TYPES) // [r"fatal error: no viable conversion from 'RepeatingCallback<MakeUnboundRunType<void \(\*\)\(int\)>>' to 'RepeatingCallback<void \(\)>'"]

	// Bind result cannot be assigned to Callbacks with a mismatching type.
	void WontCompile() {
	RepeatingClosure callback_mismatches_bind_type =
	BindRepeating(&VoidPolymorphic1<int>);
	}

	#elif defined(NCTEST_DISALLOW_CAPTURING_LAMBDA) // [r"fatal error: implicit instantiation of undefined template 'base::internal::FunctorTraits<\(lambda at (\.\./)+base/bind_unittest.nc:[0-9]+:[0-9]+\), void>'"]

	void WontCompile() {
	int i = 0, j = 0;
	BindOnce([i,&j]() {j = i;});
	}

	#elif defined(NCTEST_DISALLOW_ONCECALLBACK_RUN_ON_LVALUE) // [r"fatal error: static_assert failed due to requirement '!sizeof \(\*this\)' \"OnceCallback::Run\(\) may only be invoked on a non-const rvalue, i\.e\. std::move\(callback\).Run\(\).\""]

	void WontCompile() {
	OnceClosure cb = BindOnce([] {});
	cb.Run();
	}

	#elif defined(NCTEST_DISALLOW_ONCECALLBACK_RUN_ON_CONST_LVALUE) // [r"fatal error: static_assert failed due to requirement '!sizeof \(\*this\)' \"OnceCallback::Run\(\) may only be invoked on a non-const rvalue, i\.e\. std::move\(callback\).Run\(\).\""]

	void WontCompile() {
	const OnceClosure cb = BindOnce([] {});
	cb.Run();
	}

	#elif defined(NCTEST_DISALLOW_ONCECALLBACK_RUN_ON_CONST_RVALUE) // [r"fatal error: static_assert failed due to requirement '!sizeof \(\*this\)' \"OnceCallback::Run\(\) may only be invoked on a non-const rvalue, i\.e\. std::move\(callback\).Run\(\).\""]

	void WontCompile() {
	const OnceClosure cb = BindOnce([] {});
	std::move(cb).Run();
	}

	#elif defined(NCTEST_DISALLOW_BIND_ONCECALLBACK) // [r"fatal error: static_assert failed due to requirement '!base::internal::IsOnceCallback<base::OnceCallback<void \(int\)> >\(\)' \"BindRepeating cannot bind OnceCallback. Use BindOnce with std::move\(\).\""]

	void WontCompile() {
	BindRepeating(BindOnce([](int) {}), 42);
	}

	#elif defined(NCTEST_DISALLOW_BINDONCE_LVALUE_ONCECALLBACK) // [r"fatal error: static_assert failed due to requirement '!internal::IsOnceCallback<std::decay_t<OnceCallback<void (int)> &> >() \|\| (std::is_rvalue_reference<OnceCallback<void (int)> &>() && !std::is_const<std::remove_reference_t<OnceCallback<void (int)> &> >())' \"BindOnce requires non-const rvalue for OnceCallback binding. I.e.: base::BindOnce(std::move(callback)).\""]
	void WontCompile() {
	auto cb = BindOnce([](int) {});
	BindOnce(cb, 42);
	}

	#elif defined(NCTEST_DISALLOW_BINDONCE_RVALUE_CONST_ONCECALLBACK) // [r"fatal error: static_assert failed due to requirement '!internal::IsOnceCallback<std::decay_t<const OnceCallback<void (int)> > >() \|\| (std::is_rvalue_reference<const OnceCallback<void (int)> &&>() && !std::is_const<std::remove_reference_t<const OnceCallback<void (int)> > >())' \"BindOnce requires non-const rvalue for OnceCallback binding. I.e.: base::BindOnce(std::move(callback)).\""]

	void WontCompile() {
	const auto cb = BindOnce([](int) {});
	BindOnce(std::move(cb), 42);
	}

	#elif defined(NCTEST_BINDONCE_MOVEONLY_TYPE_BY_VALUE) // [r"fatal error: static_assert failed due to requirement 'arg_is_storable \|\| !std::is_constructible<std::__1::unique_ptr<int, std::__1::default_delete<int> >, std::__1::unique_ptr<int, std::__1::default_delete<int> > &&>::value' \"Bound argument \|i\| is move-only but will be bound by copy. Ensure \|Arg\| is mutable and bound using std::move\(\).\""]

	void WontCompile() {
	std::unique_ptr<int> x;
	BindOnce(&TakesMoveOnly, x);
	}

	#elif defined(NCTEST_BIND_MOVEONLY_TYPE_BY_VALUE) // [r"Bound argument \\|i\\| is move-only but will be forwarded by copy\. Ensure \\|Arg\\| is bound using base::Passed\(\), not std::move\(\)."]

	void WontCompile() {
	std::unique_ptr<int> x;
	BindRepeating(&TakesMoveOnly, x);
	}

	#elif defined(NCTEST_BIND_MOVEONLY_TYPE_WITH_STDMOVE) // [r"Bound argument \\|i\\| is move-only but will be forwarded by copy\. Ensure \\|Arg\\| is bound using base::Passed\(\), not std::move\(\)."]

	void WontCompile() {
	std::unique_ptr<int> x;
	BindRepeating(&TakesMoveOnly, std::move(x));
	}

	#elif defined(NCTEST_BIND_NON_EMPTY_FUNCTOR) // [r"fatal error: implicit instantiation of undefined template 'base::internal::FunctorTraits<base::NonEmptyFunctor, void>'"]

	void WontCompile() {
	BindRepeating(NonEmptyFunctor());
	}

	#elif defined(NCTEST_DISALLOW_BINDLAMBDAFORTESTING_LVALUE_MUTABLE_LAMBDA) // [r"BindLambdaForTesting requires non-const rvalue for mutable lambda binding\. I\.e\.: base::BindLambdaForTesting\(std::move\(lambda\)\)."]
	void WontCompile() {
	int foo = 42;
	auto mutable_lambda = [&]() mutable {};
	BindLambdaForTesting(mutable_lambda);
	}

	#elif defined(NCTEST_DISALLOW_BINDLAMBDAFORTESTING_RVALUE_CONST_MUTABLE_LAMBDA) // [r"BindLambdaForTesting requires non-const rvalue for mutable lambda binding\. I\.e\.: base::BindLambdaForTesting\(std::move\(lambda\)\)."]

	void WontCompile() {
	int foo = 42;
	const auto mutable_lambda = [&]() mutable {};
	BindLambdaForTesting(std::move(mutable_lambda));
	}
	#endif

	} // namespace base