// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-//
-// Author: wan@google.com (Zhanyong Wan)
+
// Google Mock - a framework for writing C++ mock classes.
//
-// This file implements some commonly used actions.
+// The ACTION* family of macros can be used in a namespace scope to
+// define custom actions easily. The syntax:
+//
+// ACTION(name) { statements; }
+//
+// will define an action with the given name that executes the
+// statements. The value returned by the statements will be used as
+// the return value of the action. Inside the statements, you can
+// refer to the K-th (0-based) argument of the mock function by
+// 'argK', and refer to its type by 'argK_type'. For example:
+//
+// ACTION(IncrementArg1) {
+// arg1_type temp = arg1;
+// return ++(*temp);
+// }
+//
+// allows you to write
+//
+// ...WillOnce(IncrementArg1());
+//
+// You can also refer to the entire argument tuple and its type by
+// 'args' and 'args_type', and refer to the mock function type and its
+// return type by 'function_type' and 'return_type'.
+//
+// Note that you don't need to specify the types of the mock function
+// arguments. However rest assured that your code is still type-safe:
+// you'll get a compiler error if *arg1 doesn't support the ++
+// operator, or if the type of ++(*arg1) isn't compatible with the
+// mock function's return type, for example.
+//
+// Sometimes you'll want to parameterize the action. For that you can use
+// another macro:
+//
+// ACTION_P(name, param_name) { statements; }
+//
+// For example:
+//
+// ACTION_P(Add, n) { return arg0 + n; }
+//
+// will allow you to write:
+//
+// ...WillOnce(Add(5));
+//
+// Note that you don't need to provide the type of the parameter
+// either. If you need to reference the type of a parameter named
+// 'foo', you can write 'foo_type'. For example, in the body of
+// ACTION_P(Add, n) above, you can write 'n_type' to refer to the type
+// of 'n'.
+//
+// We also provide ACTION_P2, ACTION_P3, ..., up to ACTION_P10 to support
+// multi-parameter actions.
+//
+// For the purpose of typing, you can view
+//
+// ACTION_Pk(Foo, p1, ..., pk) { ... }
+//
+// as shorthand for
+//
+// template <typename p1_type, ..., typename pk_type>
+// FooActionPk<p1_type, ..., pk_type> Foo(p1_type p1, ..., pk_type pk) { ... }
+//
+// In particular, you can provide the template type arguments
+// explicitly when invoking Foo(), as in Foo<long, bool>(5, false);
+// although usually you can rely on the compiler to infer the types
+// for you automatically. You can assign the result of expression
+// Foo(p1, ..., pk) to a variable of type FooActionPk<p1_type, ...,
+// pk_type>. This can be useful when composing actions.
+//
+// You can also overload actions with different numbers of parameters:
+//
+// ACTION_P(Plus, a) { ... }
+// ACTION_P2(Plus, a, b) { ... }
+//
+// While it's tempting to always use the ACTION* macros when defining
+// a new action, you should also consider implementing ActionInterface
+// or using MakePolymorphicAction() instead, especially if you need to
+// use the action a lot. While these approaches require more work,
+// they give you more control on the types of the mock function
+// arguments and the action parameters, which in general leads to
+// better compiler error messages that pay off in the long run. They
+// also allow overloading actions based on parameter types (as opposed
+// to just based on the number of parameters).
+//
+// CAVEAT:
+//
+// ACTION*() can only be used in a namespace scope as templates cannot be
+// declared inside of a local class.
+// Users can, however, define any local functors (e.g. a lambda) that
+// can be used as actions.
+//
+// MORE INFORMATION:
+//
+// To learn more about using these macros, please search for 'ACTION' on
+// https://github.com/google/googletest/blob/master/docs/gmock_cook_book.md
-#ifndef GMOCK_INCLUDE_GMOCK_GMOCK_ACTIONS_H_
-#define GMOCK_INCLUDE_GMOCK_GMOCK_ACTIONS_H_
+#ifndef GOOGLEMOCK_INCLUDE_GMOCK_GMOCK_ACTIONS_H_
+#define GOOGLEMOCK_INCLUDE_GMOCK_GMOCK_ACTIONS_H_
#ifndef _WIN32_WCE
# include <errno.h>
#endif
#include <algorithm>
+#include <functional>
+#include <memory>
#include <string>
+#include <tuple>
+#include <type_traits>
+#include <utility>
#include "gmock/internal/gmock-internal-utils.h"
#include "gmock/internal/gmock-port.h"
+#include "gmock/internal/gmock-pp.h"
-#if GTEST_HAS_STD_TYPE_TRAITS_ // Defined by gtest-port.h via gmock-port.h.
-#include <type_traits>
+#ifdef _MSC_VER
+# pragma warning(push)
+# pragma warning(disable:4100)
#endif
namespace testing {
namespace internal {
-template <typename F1, typename F2>
-class ActionAdaptor;
-
// BuiltInDefaultValueGetter<T, true>::Get() returns a
// default-constructed T value. BuiltInDefaultValueGetter<T,
// false>::Get() crashes with an error.
template <typename T>
class BuiltInDefaultValue {
public:
-#if GTEST_HAS_STD_TYPE_TRAITS_
- // This function returns true iff type T has a built-in default value.
+ // This function returns true if and only if type T has a built-in default
+ // value.
static bool Exists() {
return ::std::is_default_constructible<T>::value;
}
return BuiltInDefaultValueGetter<
T, ::std::is_default_constructible<T>::value>::Get();
}
-
-#else // GTEST_HAS_STD_TYPE_TRAITS_
- // This function returns true iff type T has a built-in default value.
- static bool Exists() {
- return false;
- }
-
- static T Get() {
- return BuiltInDefaultValueGetter<T, false>::Get();
- }
-
-#endif // GTEST_HAS_STD_TYPE_TRAITS_
};
// This partial specialization says that we use the same built-in
class BuiltInDefaultValue<T*> {
public:
static bool Exists() { return true; }
- static T* Get() { return NULL; }
+ static T* Get() { return nullptr; }
};
// The following specializations define the default values for
}
GMOCK_DEFINE_DEFAULT_ACTION_FOR_RETURN_TYPE_(void, ); // NOLINT
-#if GTEST_HAS_GLOBAL_STRING
-GMOCK_DEFINE_DEFAULT_ACTION_FOR_RETURN_TYPE_(::string, "");
-#endif // GTEST_HAS_GLOBAL_STRING
GMOCK_DEFINE_DEFAULT_ACTION_FOR_RETURN_TYPE_(::std::string, "");
GMOCK_DEFINE_DEFAULT_ACTION_FOR_RETURN_TYPE_(bool, false);
GMOCK_DEFINE_DEFAULT_ACTION_FOR_RETURN_TYPE_(unsigned char, '\0');
GMOCK_DEFINE_DEFAULT_ACTION_FOR_RETURN_TYPE_(signed int, 0);
GMOCK_DEFINE_DEFAULT_ACTION_FOR_RETURN_TYPE_(unsigned long, 0UL); // NOLINT
GMOCK_DEFINE_DEFAULT_ACTION_FOR_RETURN_TYPE_(signed long, 0L); // NOLINT
-GMOCK_DEFINE_DEFAULT_ACTION_FOR_RETURN_TYPE_(UInt64, 0);
-GMOCK_DEFINE_DEFAULT_ACTION_FOR_RETURN_TYPE_(Int64, 0);
+GMOCK_DEFINE_DEFAULT_ACTION_FOR_RETURN_TYPE_(unsigned long long, 0); // NOLINT
+GMOCK_DEFINE_DEFAULT_ACTION_FOR_RETURN_TYPE_(signed long long, 0); // NOLINT
GMOCK_DEFINE_DEFAULT_ACTION_FOR_RETURN_TYPE_(float, 0);
GMOCK_DEFINE_DEFAULT_ACTION_FOR_RETURN_TYPE_(double, 0);
#undef GMOCK_DEFINE_DEFAULT_ACTION_FOR_RETURN_TYPE_
+// Simple two-arg form of std::disjunction.
+template <typename P, typename Q>
+using disjunction = typename ::std::conditional<P::value, P, Q>::type;
+
} // namespace internal
// When an unexpected function call is encountered, Google Mock will
// Unsets the default value for type T.
static void Clear() {
delete producer_;
- producer_ = NULL;
+ producer_ = nullptr;
}
- // Returns true iff the user has set the default value for type T.
- static bool IsSet() { return producer_ != NULL; }
+ // Returns true if and only if the user has set the default value for type T.
+ static bool IsSet() { return producer_ != nullptr; }
// Returns true if T has a default return value set by the user or there
// exists a built-in default value.
// otherwise returns the built-in default value. Requires that Exists()
// is true, which ensures that the return value is well-defined.
static T Get() {
- return producer_ == NULL ?
- internal::BuiltInDefaultValue<T>::Get() : producer_->Produce();
+ return producer_ == nullptr ? internal::BuiltInDefaultValue<T>::Get()
+ : producer_->Produce();
}
private:
class FixedValueProducer : public ValueProducer {
public:
explicit FixedValueProducer(T value) : value_(value) {}
- virtual T Produce() { return value_; }
+ T Produce() override { return value_; }
private:
const T value_;
public:
explicit FactoryValueProducer(FactoryFunction factory)
: factory_(factory) {}
- virtual T Produce() { return factory_(); }
+ T Produce() override { return factory_(); }
private:
const FactoryFunction factory_;
}
// Unsets the default value for type T&.
- static void Clear() {
- address_ = NULL;
- }
+ static void Clear() { address_ = nullptr; }
- // Returns true iff the user has set the default value for type T&.
- static bool IsSet() { return address_ != NULL; }
+ // Returns true if and only if the user has set the default value for type T&.
+ static bool IsSet() { return address_ != nullptr; }
// Returns true if T has a default return value set by the user or there
// exists a built-in default value.
// otherwise returns the built-in default value if there is one;
// otherwise aborts the process.
static T& Get() {
- return address_ == NULL ?
- internal::BuiltInDefaultValue<T&>::Get() : *address_;
+ return address_ == nullptr ? internal::BuiltInDefaultValue<T&>::Get()
+ : *address_;
}
private:
// Points to the user-set default value for type T.
template <typename T>
-typename DefaultValue<T>::ValueProducer* DefaultValue<T>::producer_ = NULL;
+typename DefaultValue<T>::ValueProducer* DefaultValue<T>::producer_ = nullptr;
// Points to the user-set default value for type T&.
template <typename T>
-T* DefaultValue<T&>::address_ = NULL;
+T* DefaultValue<T&>::address_ = nullptr;
// Implement this interface to define an action for function type F.
template <typename F>
// An Action<F> is a copyable and IMMUTABLE (except by assignment)
// object that represents an action to be taken when a mock function
// of type F is called. The implementation of Action<T> is just a
-// linked_ptr to const ActionInterface<T>, so copying is fairly cheap.
-// Don't inherit from Action!
-//
+// std::shared_ptr to const ActionInterface<T>. Don't inherit from Action!
// You can view an object implementing ActionInterface<F> as a
// concrete action (including its current state), and an Action<F>
// object as a handle to it.
template <typename F>
class Action {
+ // Adapter class to allow constructing Action from a legacy ActionInterface.
+ // New code should create Actions from functors instead.
+ struct ActionAdapter {
+ // Adapter must be copyable to satisfy std::function requirements.
+ ::std::shared_ptr<ActionInterface<F>> impl_;
+
+ template <typename... Args>
+ typename internal::Function<F>::Result operator()(Args&&... args) {
+ return impl_->Perform(
+ ::std::forward_as_tuple(::std::forward<Args>(args)...));
+ }
+ };
+
+ template <typename G>
+ using IsCompatibleFunctor = std::is_constructible<std::function<F>, G>;
+
public:
typedef typename internal::Function<F>::Result Result;
typedef typename internal::Function<F>::ArgumentTuple ArgumentTuple;
// Constructs a null Action. Needed for storing Action objects in
// STL containers.
- Action() : impl_(NULL) {}
-
- // Constructs an Action from its implementation. A NULL impl is
- // used to represent the "do-default" action.
- explicit Action(ActionInterface<F>* impl) : impl_(impl) {}
+ Action() {}
+
+ // Construct an Action from a specified callable.
+ // This cannot take std::function directly, because then Action would not be
+ // directly constructible from lambda (it would require two conversions).
+ template <
+ typename G,
+ typename = typename std::enable_if<internal::disjunction<
+ IsCompatibleFunctor<G>, std::is_constructible<std::function<Result()>,
+ G>>::value>::type>
+ Action(G&& fun) { // NOLINT
+ Init(::std::forward<G>(fun), IsCompatibleFunctor<G>());
+ }
- // Copy constructor.
- Action(const Action& action) : impl_(action.impl_) {}
+ // Constructs an Action from its implementation.
+ explicit Action(ActionInterface<F>* impl)
+ : fun_(ActionAdapter{::std::shared_ptr<ActionInterface<F>>(impl)}) {}
// This constructor allows us to turn an Action<Func> object into an
// Action<F>, as long as F's arguments can be implicitly converted
- // to Func's and Func's return type can be implicitly converted to
- // F's.
+ // to Func's and Func's return type can be implicitly converted to F's.
template <typename Func>
- explicit Action(const Action<Func>& action);
+ explicit Action(const Action<Func>& action) : fun_(action.fun_) {}
- // Returns true iff this is the DoDefault() action.
- bool IsDoDefault() const { return impl_.get() == NULL; }
+ // Returns true if and only if this is the DoDefault() action.
+ bool IsDoDefault() const { return fun_ == nullptr; }
// Performs the action. Note that this method is const even though
// the corresponding method in ActionInterface is not. The reason
// another concrete action, not that the concrete action it binds to
// cannot change state. (Think of the difference between a const
// pointer and a pointer to const.)
- Result Perform(const ArgumentTuple& args) const {
- internal::Assert(
- !IsDoDefault(), __FILE__, __LINE__,
- "You are using DoDefault() inside a composite action like "
- "DoAll() or WithArgs(). This is not supported for technical "
- "reasons. Please instead spell out the default action, or "
- "assign the default action to an Action variable and use "
- "the variable in various places.");
- return impl_->Perform(args);
+ Result Perform(ArgumentTuple args) const {
+ if (IsDoDefault()) {
+ internal::IllegalDoDefault(__FILE__, __LINE__);
+ }
+ return internal::Apply(fun_, ::std::move(args));
}
private:
- template <typename F1, typename F2>
- friend class internal::ActionAdaptor;
+ template <typename G>
+ friend class Action;
+
+ template <typename G>
+ void Init(G&& g, ::std::true_type) {
+ fun_ = ::std::forward<G>(g);
+ }
+
+ template <typename G>
+ void Init(G&& g, ::std::false_type) {
+ fun_ = IgnoreArgs<typename ::std::decay<G>::type>{::std::forward<G>(g)};
+ }
+
+ template <typename FunctionImpl>
+ struct IgnoreArgs {
+ template <typename... Args>
+ Result operator()(const Args&...) const {
+ return function_impl();
+ }
+
+ FunctionImpl function_impl;
+ };
- internal::linked_ptr<ActionInterface<F> > impl_;
+ // fun_ is an empty function if and only if this is the DoDefault() action.
+ ::std::function<F> fun_;
};
// The PolymorphicAction class template makes it easy to implement a
// template <typename Result, typename ArgumentTuple>
// Result Perform(const ArgumentTuple& args) const {
// // Processes the arguments and returns a result, using
-// // tr1::get<N>(args) to get the N-th (0-based) argument in the tuple.
+// // std::get<N>(args) to get the N-th (0-based) argument in the tuple.
// }
// ...
// };
explicit MonomorphicImpl(const Impl& impl) : impl_(impl) {}
- virtual Result Perform(const ArgumentTuple& args) {
+ Result Perform(const ArgumentTuple& args) override {
return impl_.template Perform<Result>(args);
}
private:
Impl impl_;
-
- GTEST_DISALLOW_ASSIGN_(MonomorphicImpl);
};
Impl impl_;
-
- GTEST_DISALLOW_ASSIGN_(PolymorphicAction);
};
// Creates an Action from its implementation and returns it. The
namespace internal {
-// Allows an Action<F2> object to pose as an Action<F1>, as long as F2
-// and F1 are compatible.
-template <typename F1, typename F2>
-class ActionAdaptor : public ActionInterface<F1> {
- public:
- typedef typename internal::Function<F1>::Result Result;
- typedef typename internal::Function<F1>::ArgumentTuple ArgumentTuple;
-
- explicit ActionAdaptor(const Action<F2>& from) : impl_(from.impl_) {}
-
- virtual Result Perform(const ArgumentTuple& args) {
- return impl_->Perform(args);
- }
-
- private:
- const internal::linked_ptr<ActionInterface<F2> > impl_;
-
- GTEST_DISALLOW_ASSIGN_(ActionAdaptor);
-};
-
// Helper struct to specialize ReturnAction to execute a move instead of a copy
// on return. Useful for move-only types, but could be used on any type.
template <typename T>
struct ByMoveWrapper {
- explicit ByMoveWrapper(T value) : payload(internal::move(value)) {}
+ explicit ByMoveWrapper(T value) : payload(std::move(value)) {}
T payload;
};
// statement, and conversion of the result of Return to Action<T(U)> is a
// good place for that.
//
+// The real life example of the above scenario happens when an invocation
+// of gtl::Container() is passed into Return.
+//
template <typename R>
class ReturnAction {
public:
// Constructs a ReturnAction object from the value to be returned.
// 'value' is passed by value instead of by const reference in order
// to allow Return("string literal") to compile.
- explicit ReturnAction(R value) : value_(new R(internal::move(value))) {}
+ explicit ReturnAction(R value) : value_(new R(std::move(value))) {}
// This template type conversion operator allows Return(x) to be
// used in ANY function that returns x's type.
template <typename F>
- operator Action<F>() const {
+ operator Action<F>() const { // NOLINT
// Assert statement belongs here because this is the best place to verify
// conditions on F. It produces the clearest error messages
// in most compilers.
// in the Impl class. But both definitions must be the same.
typedef typename Function<F>::Result Result;
GTEST_COMPILE_ASSERT_(
- !is_reference<Result>::value,
+ !std::is_reference<Result>::value,
use_ReturnRef_instead_of_Return_to_return_a_reference);
+ static_assert(!std::is_void<Result>::value,
+ "Can't use Return() on an action expected to return `void`.");
return Action<F>(new Impl<R, F>(value_));
}
// Result to call. ImplicitCast_ forces the compiler to convert R to
// Result without considering explicit constructors, thus resolving the
// ambiguity. value_ is then initialized using its copy constructor.
- explicit Impl(const linked_ptr<R>& value)
+ explicit Impl(const std::shared_ptr<R>& value)
: value_before_cast_(*value),
value_(ImplicitCast_<Result>(value_before_cast_)) {}
- virtual Result Perform(const ArgumentTuple&) { return value_; }
+ Result Perform(const ArgumentTuple&) override { return value_; }
private:
- GTEST_COMPILE_ASSERT_(!is_reference<Result>::value,
+ GTEST_COMPILE_ASSERT_(!std::is_reference<Result>::value,
Result_cannot_be_a_reference_type);
// We save the value before casting just in case it is being cast to a
// wrapper type.
typedef typename Function<F>::Result Result;
typedef typename Function<F>::ArgumentTuple ArgumentTuple;
- explicit Impl(const linked_ptr<R>& wrapper)
+ explicit Impl(const std::shared_ptr<R>& wrapper)
: performed_(false), wrapper_(wrapper) {}
- virtual Result Perform(const ArgumentTuple&) {
+ Result Perform(const ArgumentTuple&) override {
GTEST_CHECK_(!performed_)
<< "A ByMove() action should only be performed once.";
performed_ = true;
- return internal::move(wrapper_->payload);
+ return std::move(wrapper_->payload);
}
private:
bool performed_;
- const linked_ptr<R> wrapper_;
-
- GTEST_DISALLOW_ASSIGN_(Impl);
+ const std::shared_ptr<R> wrapper_;
};
- const linked_ptr<R> value_;
-
- GTEST_DISALLOW_ASSIGN_(ReturnAction);
+ const std::shared_ptr<R> value_;
};
// Implements the ReturnNull() action.
// pointer type on compile time.
template <typename Result, typename ArgumentTuple>
static Result Perform(const ArgumentTuple&) {
-#if GTEST_LANG_CXX11
return nullptr;
-#else
- GTEST_COMPILE_ASSERT_(internal::is_pointer<Result>::value,
- ReturnNull_can_be_used_to_return_a_pointer_only);
- return NULL;
-#endif // GTEST_LANG_CXX11
}
};
// Allows Return() to be used in any void-returning function.
template <typename Result, typename ArgumentTuple>
static void Perform(const ArgumentTuple&) {
- CompileAssertTypesEqual<void, Result>();
+ static_assert(std::is_void<Result>::value, "Result should be void.");
}
};
// Asserts that the function return type is a reference. This
// catches the user error of using ReturnRef(x) when Return(x)
// should be used, and generates some helpful error message.
- GTEST_COMPILE_ASSERT_(internal::is_reference<Result>::value,
+ GTEST_COMPILE_ASSERT_(std::is_reference<Result>::value,
use_Return_instead_of_ReturnRef_to_return_a_value);
return Action<F>(new Impl<F>(ref_));
}
explicit Impl(T& ref) : ref_(ref) {} // NOLINT
- virtual Result Perform(const ArgumentTuple&) {
- return ref_;
- }
+ Result Perform(const ArgumentTuple&) override { return ref_; }
private:
T& ref_;
-
- GTEST_DISALLOW_ASSIGN_(Impl);
};
T& ref_;
-
- GTEST_DISALLOW_ASSIGN_(ReturnRefAction);
};
// Implements the polymorphic ReturnRefOfCopy(x) action, which can be
// catches the user error of using ReturnRefOfCopy(x) when Return(x)
// should be used, and generates some helpful error message.
GTEST_COMPILE_ASSERT_(
- internal::is_reference<Result>::value,
+ std::is_reference<Result>::value,
use_Return_instead_of_ReturnRefOfCopy_to_return_a_value);
return Action<F>(new Impl<F>(value_));
}
explicit Impl(const T& value) : value_(value) {} // NOLINT
- virtual Result Perform(const ArgumentTuple&) {
- return value_;
- }
+ Result Perform(const ArgumentTuple&) override { return value_; }
private:
T value_;
-
- GTEST_DISALLOW_ASSIGN_(Impl);
};
const T value_;
+};
+
+// Implements the polymorphic ReturnRoundRobin(v) action, which can be
+// used in any function that returns the element_type of v.
+template <typename T>
+class ReturnRoundRobinAction {
+ public:
+ explicit ReturnRoundRobinAction(std::vector<T> values) {
+ GTEST_CHECK_(!values.empty())
+ << "ReturnRoundRobin requires at least one element.";
+ state_->values = std::move(values);
+ }
+
+ template <typename... Args>
+ T operator()(Args&&...) const {
+ return state_->Next();
+ }
+
+ private:
+ struct State {
+ T Next() {
+ T ret_val = values[i++];
+ if (i == values.size()) i = 0;
+ return ret_val;
+ }
- GTEST_DISALLOW_ASSIGN_(ReturnRefOfCopyAction);
+ std::vector<T> values;
+ size_t i = 0;
+ };
+ std::shared_ptr<State> state_ = std::make_shared<State>();
};
// Implements the polymorphic DoDefault() action.
// This template type conversion operator allows DoDefault() to be
// used in any function.
template <typename F>
- operator Action<F>() const { return Action<F>(NULL); }
+ operator Action<F>() const { return Action<F>(); } // NOLINT
};
// Implements the Assign action to set a given pointer referent to a
private:
T1* const ptr_;
const T2 value_;
-
- GTEST_DISALLOW_ASSIGN_(AssignAction);
};
#if !GTEST_OS_WINDOWS_MOBILE
private:
const int errno_;
const T result_;
-
- GTEST_DISALLOW_ASSIGN_(SetErrnoAndReturnAction);
};
#endif // !GTEST_OS_WINDOWS_MOBILE
// Implements the SetArgumentPointee<N>(x) action for any function
-// whose N-th argument (0-based) is a pointer to x's type. The
-// template parameter kIsProto is true iff type A is ProtocolMessage,
-// proto2::Message, or a sub-class of those.
-template <size_t N, typename A, bool kIsProto>
-class SetArgumentPointeeAction {
- public:
- // Constructs an action that sets the variable pointed to by the
- // N-th function argument to 'value'.
- explicit SetArgumentPointeeAction(const A& value) : value_(value) {}
-
- template <typename Result, typename ArgumentTuple>
- void Perform(const ArgumentTuple& args) const {
- CompileAssertTypesEqual<void, Result>();
- *::testing::get<N>(args) = value_;
+// whose N-th argument (0-based) is a pointer to x's type.
+template <size_t N, typename A, typename = void>
+struct SetArgumentPointeeAction {
+ A value;
+
+ template <typename... Args>
+ void operator()(const Args&... args) const {
+ *::std::get<N>(std::tie(args...)) = value;
}
-
- private:
- const A value_;
-
- GTEST_DISALLOW_ASSIGN_(SetArgumentPointeeAction);
};
-template <size_t N, typename Proto>
-class SetArgumentPointeeAction<N, Proto, true> {
- public:
- // Constructs an action that sets the variable pointed to by the
- // N-th function argument to 'proto'. Both ProtocolMessage and
- // proto2::Message have the CopyFrom() method, so the same
- // implementation works for both.
- explicit SetArgumentPointeeAction(const Proto& proto) : proto_(new Proto) {
- proto_->CopyFrom(proto);
- }
-
- template <typename Result, typename ArgumentTuple>
- void Perform(const ArgumentTuple& args) const {
- CompileAssertTypesEqual<void, Result>();
- ::testing::get<N>(args)->CopyFrom(*proto_);
+// Implements the Invoke(object_ptr, &Class::Method) action.
+template <class Class, typename MethodPtr>
+struct InvokeMethodAction {
+ Class* const obj_ptr;
+ const MethodPtr method_ptr;
+
+ template <typename... Args>
+ auto operator()(Args&&... args) const
+ -> decltype((obj_ptr->*method_ptr)(std::forward<Args>(args)...)) {
+ return (obj_ptr->*method_ptr)(std::forward<Args>(args)...);
}
-
- private:
- const internal::linked_ptr<Proto> proto_;
-
- GTEST_DISALLOW_ASSIGN_(SetArgumentPointeeAction);
};
// Implements the InvokeWithoutArgs(f) action. The template argument
// FunctionImpl is the implementation type of f, which can be either a
// function pointer or a functor. InvokeWithoutArgs(f) can be used as an
-// Action<F> as long as f's type is compatible with F (i.e. f can be
-// assigned to a tr1::function<F>).
+// Action<F> as long as f's type is compatible with F.
template <typename FunctionImpl>
-class InvokeWithoutArgsAction {
- public:
- // The c'tor makes a copy of function_impl (either a function
- // pointer or a functor).
- explicit InvokeWithoutArgsAction(FunctionImpl function_impl)
- : function_impl_(function_impl) {}
+struct InvokeWithoutArgsAction {
+ FunctionImpl function_impl;
// Allows InvokeWithoutArgs(f) to be used as any action whose type is
// compatible with f.
- template <typename Result, typename ArgumentTuple>
- Result Perform(const ArgumentTuple&) { return function_impl_(); }
-
- private:
- FunctionImpl function_impl_;
-
- GTEST_DISALLOW_ASSIGN_(InvokeWithoutArgsAction);
+ template <typename... Args>
+ auto operator()(const Args&...) -> decltype(function_impl()) {
+ return function_impl();
+ }
};
// Implements the InvokeWithoutArgs(object_ptr, &Class::Method) action.
template <class Class, typename MethodPtr>
-class InvokeMethodWithoutArgsAction {
- public:
- InvokeMethodWithoutArgsAction(Class* obj_ptr, MethodPtr method_ptr)
- : obj_ptr_(obj_ptr), method_ptr_(method_ptr) {}
-
- template <typename Result, typename ArgumentTuple>
- Result Perform(const ArgumentTuple&) const {
- return (obj_ptr_->*method_ptr_)();
- }
+struct InvokeMethodWithoutArgsAction {
+ Class* const obj_ptr;
+ const MethodPtr method_ptr;
- private:
- Class* const obj_ptr_;
- const MethodPtr method_ptr_;
+ using ReturnType =
+ decltype((std::declval<Class*>()->*std::declval<MethodPtr>())());
- GTEST_DISALLOW_ASSIGN_(InvokeMethodWithoutArgsAction);
+ template <typename... Args>
+ ReturnType operator()(const Args&...) const {
+ return (obj_ptr->*method_ptr)();
+ }
};
// Implements the IgnoreResult(action) action.
typedef typename internal::Function<F>::Result Result;
// Asserts at compile time that F returns void.
- CompileAssertTypesEqual<void, Result>();
+ static_assert(std::is_void<Result>::value, "Result type should be void.");
return Action<F>(new Impl<F>(action_));
}
explicit Impl(const A& action) : action_(action) {}
- virtual void Perform(const ArgumentTuple& args) {
+ void Perform(const ArgumentTuple& args) override {
// Performs the action and ignores its result.
action_.Perform(args);
}
OriginalFunction;
const Action<OriginalFunction> action_;
-
- GTEST_DISALLOW_ASSIGN_(Impl);
};
const A action_;
+};
- GTEST_DISALLOW_ASSIGN_(IgnoreResultAction);
+template <typename InnerAction, size_t... I>
+struct WithArgsAction {
+ InnerAction action;
+
+ // The inner action could be anything convertible to Action<X>.
+ // We use the conversion operator to detect the signature of the inner Action.
+ template <typename R, typename... Args>
+ operator Action<R(Args...)>() const { // NOLINT
+ using TupleType = std::tuple<Args...>;
+ Action<R(typename std::tuple_element<I, TupleType>::type...)>
+ converted(action);
+
+ return [converted](Args... args) -> R {
+ return converted.Perform(std::forward_as_tuple(
+ std::get<I>(std::forward_as_tuple(std::forward<Args>(args)...))...));
+ };
+ }
};
-// A ReferenceWrapper<T> object represents a reference to type T,
-// which can be either const or not. It can be explicitly converted
-// from, and implicitly converted to, a T&. Unlike a reference,
-// ReferenceWrapper<T> can be copied and can survive template type
-// inference. This is used to support by-reference arguments in the
-// InvokeArgument<N>(...) action. The idea was from "reference
-// wrappers" in tr1, which we don't have in our source tree yet.
-template <typename T>
-class ReferenceWrapper {
+template <typename... Actions>
+struct DoAllAction {
+ private:
+ template <typename T>
+ using NonFinalType =
+ typename std::conditional<std::is_scalar<T>::value, T, const T&>::type;
+
+ template <typename ActionT, size_t... I>
+ std::vector<ActionT> Convert(IndexSequence<I...>) const {
+ return {ActionT(std::get<I>(actions))...};
+ }
+
public:
- // Constructs a ReferenceWrapper<T> object from a T&.
- explicit ReferenceWrapper(T& l_value) : pointer_(&l_value) {} // NOLINT
+ std::tuple<Actions...> actions;
+
+ template <typename R, typename... Args>
+ operator Action<R(Args...)>() const { // NOLINT
+ struct Op {
+ std::vector<Action<void(NonFinalType<Args>...)>> converted;
+ Action<R(Args...)> last;
+ R operator()(Args... args) const {
+ auto tuple_args = std::forward_as_tuple(std::forward<Args>(args)...);
+ for (auto& a : converted) {
+ a.Perform(tuple_args);
+ }
+ return last.Perform(std::move(tuple_args));
+ }
+ };
+ return Op{Convert<Action<void(NonFinalType<Args>...)>>(
+ MakeIndexSequence<sizeof...(Actions) - 1>()),
+ std::get<sizeof...(Actions) - 1>(actions)};
+ }
+};
- // Allows a ReferenceWrapper<T> object to be implicitly converted to
- // a T&.
- operator T&() const { return *pointer_; }
- private:
- T* pointer_;
+template <typename T, typename... Params>
+struct ReturnNewAction {
+ T* operator()() const {
+ return internal::Apply(
+ [](const Params&... unpacked_params) {
+ return new T(unpacked_params...);
+ },
+ params);
+ }
+ std::tuple<Params...> params;
};
-// Allows the expression ByRef(x) to be printed as a reference to x.
-template <typename T>
-void PrintTo(const ReferenceWrapper<T>& ref, ::std::ostream* os) {
- T& value = ref;
- UniversalPrinter<T&>::Print(value, os);
-}
+template <size_t k>
+struct ReturnArgAction {
+ template <typename... Args>
+ auto operator()(const Args&... args) const ->
+ typename std::tuple_element<k, std::tuple<Args...>>::type {
+ return std::get<k>(std::tie(args...));
+ }
+};
-// Does two actions sequentially. Used for implementing the DoAll(a1,
-// a2, ...) action.
-template <typename Action1, typename Action2>
-class DoBothAction {
- public:
- DoBothAction(Action1 action1, Action2 action2)
- : action1_(action1), action2_(action2) {}
+template <size_t k, typename Ptr>
+struct SaveArgAction {
+ Ptr pointer;
- // This template type conversion operator allows DoAll(a1, ..., a_n)
- // to be used in ANY function of compatible type.
- template <typename F>
- operator Action<F>() const {
- return Action<F>(new Impl<F>(action1_, action2_));
+ template <typename... Args>
+ void operator()(const Args&... args) const {
+ *pointer = std::get<k>(std::tie(args...));
}
+};
- private:
- // Implements the DoAll(...) action for a particular function type F.
- template <typename F>
- class Impl : public ActionInterface<F> {
- public:
- typedef typename Function<F>::Result Result;
- typedef typename Function<F>::ArgumentTuple ArgumentTuple;
- typedef typename Function<F>::MakeResultVoid VoidResult;
+template <size_t k, typename Ptr>
+struct SaveArgPointeeAction {
+ Ptr pointer;
+
+ template <typename... Args>
+ void operator()(const Args&... args) const {
+ *pointer = *std::get<k>(std::tie(args...));
+ }
+};
+
+template <size_t k, typename T>
+struct SetArgRefereeAction {
+ T value;
+
+ template <typename... Args>
+ void operator()(Args&&... args) const {
+ using argk_type =
+ typename ::std::tuple_element<k, std::tuple<Args...>>::type;
+ static_assert(std::is_lvalue_reference<argk_type>::value,
+ "Argument must be a reference type.");
+ std::get<k>(std::tie(args...)) = value;
+ }
+};
- Impl(const Action<VoidResult>& action1, const Action<F>& action2)
- : action1_(action1), action2_(action2) {}
+template <size_t k, typename I1, typename I2>
+struct SetArrayArgumentAction {
+ I1 first;
+ I2 last;
- virtual Result Perform(const ArgumentTuple& args) {
- action1_.Perform(args);
- return action2_.Perform(args);
+ template <typename... Args>
+ void operator()(const Args&... args) const {
+ auto value = std::get<k>(std::tie(args...));
+ for (auto it = first; it != last; ++it, (void)++value) {
+ *value = *it;
}
+ }
+};
- private:
- const Action<VoidResult> action1_;
- const Action<F> action2_;
-
- GTEST_DISALLOW_ASSIGN_(Impl);
- };
+template <size_t k>
+struct DeleteArgAction {
+ template <typename... Args>
+ void operator()(const Args&... args) const {
+ delete std::get<k>(std::tie(args...));
+ }
+};
- Action1 action1_;
- Action2 action2_;
+template <typename Ptr>
+struct ReturnPointeeAction {
+ Ptr pointer;
+ template <typename... Args>
+ auto operator()(const Args&...) const -> decltype(*pointer) {
+ return *pointer;
+ }
+};
- GTEST_DISALLOW_ASSIGN_(DoBothAction);
+#if GTEST_HAS_EXCEPTIONS
+template <typename T>
+struct ThrowAction {
+ T exception;
+ // We use a conversion operator to adapt to any return type.
+ template <typename R, typename... Args>
+ operator Action<R(Args...)>() const { // NOLINT
+ T copy = exception;
+ return [copy](Args...) -> R { throw copy; };
+ }
};
+#endif // GTEST_HAS_EXCEPTIONS
} // namespace internal
// return sqrt(x*x + y*y);
// }
// ...
-// EXEPCT_CALL(mock, Foo("abc", _, _))
+// EXPECT_CALL(mock, Foo("abc", _, _))
// .WillOnce(Invoke(DistanceToOriginWithLabel));
-// EXEPCT_CALL(mock, Bar(5, _, _))
+// EXPECT_CALL(mock, Bar(5, _, _))
// .WillOnce(Invoke(DistanceToOriginWithIndex));
//
// you could write
// return sqrt(x*x + y*y);
// }
// ...
-// EXEPCT_CALL(mock, Foo("abc", _, _)).WillOnce(Invoke(DistanceToOrigin));
-// EXEPCT_CALL(mock, Bar(5, _, _)).WillOnce(Invoke(DistanceToOrigin));
+// EXPECT_CALL(mock, Foo("abc", _, _)).WillOnce(Invoke(DistanceToOrigin));
+// EXPECT_CALL(mock, Bar(5, _, _)).WillOnce(Invoke(DistanceToOrigin));
typedef internal::IgnoredValue Unused;
-// This constructor allows us to turn an Action<From> object into an
-// Action<To>, as long as To's arguments can be implicitly converted
-// to From's and From's return type cann be implicitly converted to
-// To's.
-template <typename To>
-template <typename From>
-Action<To>::Action(const Action<From>& from)
- : impl_(new internal::ActionAdaptor<To, From>(from)) {}
+// Creates an action that does actions a1, a2, ..., sequentially in
+// each invocation. All but the last action will have a readonly view of the
+// arguments.
+template <typename... Action>
+internal::DoAllAction<typename std::decay<Action>::type...> DoAll(
+ Action&&... action) {
+ return {std::forward_as_tuple(std::forward<Action>(action)...)};
+}
+
+// WithArg<k>(an_action) creates an action that passes the k-th
+// (0-based) argument of the mock function to an_action and performs
+// it. It adapts an action accepting one argument to one that accepts
+// multiple arguments. For convenience, we also provide
+// WithArgs<k>(an_action) (defined below) as a synonym.
+template <size_t k, typename InnerAction>
+internal::WithArgsAction<typename std::decay<InnerAction>::type, k>
+WithArg(InnerAction&& action) {
+ return {std::forward<InnerAction>(action)};
+}
+
+// WithArgs<N1, N2, ..., Nk>(an_action) creates an action that passes
+// the selected arguments of the mock function to an_action and
+// performs it. It serves as an adaptor between actions with
+// different argument lists.
+template <size_t k, size_t... ks, typename InnerAction>
+internal::WithArgsAction<typename std::decay<InnerAction>::type, k, ks...>
+WithArgs(InnerAction&& action) {
+ return {std::forward<InnerAction>(action)};
+}
+
+// WithoutArgs(inner_action) can be used in a mock function with a
+// non-empty argument list to perform inner_action, which takes no
+// argument. In other words, it adapts an action accepting no
+// argument to one that accepts (and ignores) arguments.
+template <typename InnerAction>
+internal::WithArgsAction<typename std::decay<InnerAction>::type>
+WithoutArgs(InnerAction&& action) {
+ return {std::forward<InnerAction>(action)};
+}
// Creates an action that returns 'value'. 'value' is passed by value
// instead of const reference - otherwise Return("string literal")
// will trigger a compiler error about using array as initializer.
template <typename R>
internal::ReturnAction<R> Return(R value) {
- return internal::ReturnAction<R>(internal::move(value));
+ return internal::ReturnAction<R>(std::move(value));
}
// Creates an action that returns NULL.
return internal::ReturnRefAction<R>(x);
}
+// Prevent using ReturnRef on reference to temporary.
+template <typename R, R* = nullptr>
+internal::ReturnRefAction<R> ReturnRef(R&&) = delete;
+
// Creates an action that returns the reference to a copy of the
// argument. The copy is created when the action is constructed and
// lives as long as the action.
// invariant.
template <typename R>
internal::ByMoveWrapper<R> ByMove(R x) {
- return internal::ByMoveWrapper<R>(internal::move(x));
+ return internal::ByMoveWrapper<R>(std::move(x));
+}
+
+// Creates an action that returns an element of `vals`. Calling this action will
+// repeatedly return the next value from `vals` until it reaches the end and
+// will restart from the beginning.
+template <typename T>
+internal::ReturnRoundRobinAction<T> ReturnRoundRobin(std::vector<T> vals) {
+ return internal::ReturnRoundRobinAction<T>(std::move(vals));
+}
+
+// Creates an action that returns an element of `vals`. Calling this action will
+// repeatedly return the next value from `vals` until it reaches the end and
+// will restart from the beginning.
+template <typename T>
+internal::ReturnRoundRobinAction<T> ReturnRoundRobin(
+ std::initializer_list<T> vals) {
+ return internal::ReturnRoundRobinAction<T>(std::vector<T>(vals));
}
// Creates an action that does the default action for the give mock function.
// Creates an action that sets the variable pointed by the N-th
// (0-based) function argument to 'value'.
template <size_t N, typename T>
-PolymorphicAction<
- internal::SetArgumentPointeeAction<
- N, T, internal::IsAProtocolMessage<T>::value> >
-SetArgPointee(const T& x) {
- return MakePolymorphicAction(internal::SetArgumentPointeeAction<
- N, T, internal::IsAProtocolMessage<T>::value>(x));
-}
-
-#if !((GTEST_GCC_VER_ && GTEST_GCC_VER_ < 40000) || GTEST_OS_SYMBIAN)
-// This overload allows SetArgPointee() to accept a string literal.
-// GCC prior to the version 4.0 and Symbian C++ compiler cannot distinguish
-// this overload from the templated version and emit a compile error.
-template <size_t N>
-PolymorphicAction<
- internal::SetArgumentPointeeAction<N, const char*, false> >
-SetArgPointee(const char* p) {
- return MakePolymorphicAction(internal::SetArgumentPointeeAction<
- N, const char*, false>(p));
-}
-
-template <size_t N>
-PolymorphicAction<
- internal::SetArgumentPointeeAction<N, const wchar_t*, false> >
-SetArgPointee(const wchar_t* p) {
- return MakePolymorphicAction(internal::SetArgumentPointeeAction<
- N, const wchar_t*, false>(p));
+internal::SetArgumentPointeeAction<N, T> SetArgPointee(T value) {
+ return {std::move(value)};
}
-#endif
// The following version is DEPRECATED.
template <size_t N, typename T>
-PolymorphicAction<
- internal::SetArgumentPointeeAction<
- N, T, internal::IsAProtocolMessage<T>::value> >
-SetArgumentPointee(const T& x) {
- return MakePolymorphicAction(internal::SetArgumentPointeeAction<
- N, T, internal::IsAProtocolMessage<T>::value>(x));
+internal::SetArgumentPointeeAction<N, T> SetArgumentPointee(T value) {
+ return {std::move(value)};
}
// Creates an action that sets a pointer referent to a given value.
#endif // !GTEST_OS_WINDOWS_MOBILE
-// Various overloads for InvokeWithoutArgs().
+// Various overloads for Invoke().
+
+// Legacy function.
+// Actions can now be implicitly constructed from callables. No need to create
+// wrapper objects.
+// This function exists for backwards compatibility.
+template <typename FunctionImpl>
+typename std::decay<FunctionImpl>::type Invoke(FunctionImpl&& function_impl) {
+ return std::forward<FunctionImpl>(function_impl);
+}
+
+// Creates an action that invokes the given method on the given object
+// with the mock function's arguments.
+template <class Class, typename MethodPtr>
+internal::InvokeMethodAction<Class, MethodPtr> Invoke(Class* obj_ptr,
+ MethodPtr method_ptr) {
+ return {obj_ptr, method_ptr};
+}
// Creates an action that invokes 'function_impl' with no argument.
template <typename FunctionImpl>
-PolymorphicAction<internal::InvokeWithoutArgsAction<FunctionImpl> >
+internal::InvokeWithoutArgsAction<typename std::decay<FunctionImpl>::type>
InvokeWithoutArgs(FunctionImpl function_impl) {
- return MakePolymorphicAction(
- internal::InvokeWithoutArgsAction<FunctionImpl>(function_impl));
+ return {std::move(function_impl)};
}
// Creates an action that invokes the given method on the given object
// with no argument.
template <class Class, typename MethodPtr>
-PolymorphicAction<internal::InvokeMethodWithoutArgsAction<Class, MethodPtr> >
-InvokeWithoutArgs(Class* obj_ptr, MethodPtr method_ptr) {
- return MakePolymorphicAction(
- internal::InvokeMethodWithoutArgsAction<Class, MethodPtr>(
- obj_ptr, method_ptr));
+internal::InvokeMethodWithoutArgsAction<Class, MethodPtr> InvokeWithoutArgs(
+ Class* obj_ptr, MethodPtr method_ptr) {
+ return {obj_ptr, method_ptr};
}
// Creates an action that performs an_action and throws away its
// where Base is a base class of Derived, just write:
//
// ByRef<const Base>(derived)
+//
+// N.B. ByRef is redundant with std::ref, std::cref and std::reference_wrapper.
+// However, it may still be used for consistency with ByMove().
+template <typename T>
+inline ::std::reference_wrapper<T> ByRef(T& l_value) { // NOLINT
+ return ::std::reference_wrapper<T>(l_value);
+}
+
+// The ReturnNew<T>(a1, a2, ..., a_k) action returns a pointer to a new
+// instance of type T, constructed on the heap with constructor arguments
+// a1, a2, ..., and a_k. The caller assumes ownership of the returned value.
+template <typename T, typename... Params>
+internal::ReturnNewAction<T, typename std::decay<Params>::type...> ReturnNew(
+ Params&&... params) {
+ return {std::forward_as_tuple(std::forward<Params>(params)...)};
+}
+
+// Action ReturnArg<k>() returns the k-th argument of the mock function.
+template <size_t k>
+internal::ReturnArgAction<k> ReturnArg() {
+ return {};
+}
+
+// Action SaveArg<k>(pointer) saves the k-th (0-based) argument of the
+// mock function to *pointer.
+template <size_t k, typename Ptr>
+internal::SaveArgAction<k, Ptr> SaveArg(Ptr pointer) {
+ return {pointer};
+}
+
+// Action SaveArgPointee<k>(pointer) saves the value pointed to
+// by the k-th (0-based) argument of the mock function to *pointer.
+template <size_t k, typename Ptr>
+internal::SaveArgPointeeAction<k, Ptr> SaveArgPointee(Ptr pointer) {
+ return {pointer};
+}
+
+// Action SetArgReferee<k>(value) assigns 'value' to the variable
+// referenced by the k-th (0-based) argument of the mock function.
+template <size_t k, typename T>
+internal::SetArgRefereeAction<k, typename std::decay<T>::type> SetArgReferee(
+ T&& value) {
+ return {std::forward<T>(value)};
+}
+
+// Action SetArrayArgument<k>(first, last) copies the elements in
+// source range [first, last) to the array pointed to by the k-th
+// (0-based) argument, which can be either a pointer or an
+// iterator. The action does not take ownership of the elements in the
+// source range.
+template <size_t k, typename I1, typename I2>
+internal::SetArrayArgumentAction<k, I1, I2> SetArrayArgument(I1 first,
+ I2 last) {
+ return {first, last};
+}
+
+// Action DeleteArg<k>() deletes the k-th (0-based) argument of the mock
+// function.
+template <size_t k>
+internal::DeleteArgAction<k> DeleteArg() {
+ return {};
+}
+
+// This action returns the value pointed to by 'pointer'.
+template <typename Ptr>
+internal::ReturnPointeeAction<Ptr> ReturnPointee(Ptr pointer) {
+ return {pointer};
+}
+
+// Action Throw(exception) can be used in a mock function of any type
+// to throw the given exception. Any copyable value can be thrown.
+#if GTEST_HAS_EXCEPTIONS
template <typename T>
-inline internal::ReferenceWrapper<T> ByRef(T& l_value) { // NOLINT
- return internal::ReferenceWrapper<T>(l_value);
+internal::ThrowAction<typename std::decay<T>::type> Throw(T&& exception) {
+ return {std::forward<T>(exception)};
}
+#endif // GTEST_HAS_EXCEPTIONS
+
+namespace internal {
+
+// A macro from the ACTION* family (defined later in gmock-generated-actions.h)
+// defines an action that can be used in a mock function. Typically,
+// these actions only care about a subset of the arguments of the mock
+// function. For example, if such an action only uses the second
+// argument, it can be used in any mock function that takes >= 2
+// arguments where the type of the second argument is compatible.
+//
+// Therefore, the action implementation must be prepared to take more
+// arguments than it needs. The ExcessiveArg type is used to
+// represent those excessive arguments. In order to keep the compiler
+// error messages tractable, we define it in the testing namespace
+// instead of testing::internal. However, this is an INTERNAL TYPE
+// and subject to change without notice, so a user MUST NOT USE THIS
+// TYPE DIRECTLY.
+struct ExcessiveArg {};
+
+// Builds an implementation of an Action<> for some particular signature, using
+// a class defined by an ACTION* macro.
+template <typename F, typename Impl> struct ActionImpl;
+
+template <typename Impl>
+struct ImplBase {
+ struct Holder {
+ // Allows each copy of the Action<> to get to the Impl.
+ explicit operator const Impl&() const { return *ptr; }
+ std::shared_ptr<Impl> ptr;
+ };
+ using type = typename std::conditional<std::is_constructible<Impl>::value,
+ Impl, Holder>::type;
+};
+
+template <typename R, typename... Args, typename Impl>
+struct ActionImpl<R(Args...), Impl> : ImplBase<Impl>::type {
+ using Base = typename ImplBase<Impl>::type;
+ using function_type = R(Args...);
+ using args_type = std::tuple<Args...>;
+
+ ActionImpl() = default; // Only defined if appropriate for Base.
+ explicit ActionImpl(std::shared_ptr<Impl> impl) : Base{std::move(impl)} { }
+
+ R operator()(Args&&... arg) const {
+ static constexpr size_t kMaxArgs =
+ sizeof...(Args) <= 10 ? sizeof...(Args) : 10;
+ return Apply(MakeIndexSequence<kMaxArgs>{},
+ MakeIndexSequence<10 - kMaxArgs>{},
+ args_type{std::forward<Args>(arg)...});
+ }
+
+ template <std::size_t... arg_id, std::size_t... excess_id>
+ R Apply(IndexSequence<arg_id...>, IndexSequence<excess_id...>,
+ const args_type& args) const {
+ // Impl need not be specific to the signature of action being implemented;
+ // only the implementing function body needs to have all of the specific
+ // types instantiated. Up to 10 of the args that are provided by the
+ // args_type get passed, followed by a dummy of unspecified type for the
+ // remainder up to 10 explicit args.
+ static constexpr ExcessiveArg kExcessArg{};
+ return static_cast<const Impl&>(*this).template gmock_PerformImpl<
+ /*function_type=*/function_type, /*return_type=*/R,
+ /*args_type=*/args_type,
+ /*argN_type=*/typename std::tuple_element<arg_id, args_type>::type...>(
+ /*args=*/args, std::get<arg_id>(args)...,
+ ((void)excess_id, kExcessArg)...);
+ }
+};
+
+// Stores a default-constructed Impl as part of the Action<>'s
+// std::function<>. The Impl should be trivial to copy.
+template <typename F, typename Impl>
+::testing::Action<F> MakeAction() {
+ return ::testing::Action<F>(ActionImpl<F, Impl>());
+}
+
+// Stores just the one given instance of Impl.
+template <typename F, typename Impl>
+::testing::Action<F> MakeAction(std::shared_ptr<Impl> impl) {
+ return ::testing::Action<F>(ActionImpl<F, Impl>(std::move(impl)));
+}
+
+#define GMOCK_INTERNAL_ARG_UNUSED(i, data, el) \
+ , const arg##i##_type& arg##i GTEST_ATTRIBUTE_UNUSED_
+#define GMOCK_ACTION_ARG_TYPES_AND_NAMES_UNUSED_ \
+ const args_type& args GTEST_ATTRIBUTE_UNUSED_ GMOCK_PP_REPEAT( \
+ GMOCK_INTERNAL_ARG_UNUSED, , 10)
+
+#define GMOCK_INTERNAL_ARG(i, data, el) , const arg##i##_type& arg##i
+#define GMOCK_ACTION_ARG_TYPES_AND_NAMES_ \
+ const args_type& args GMOCK_PP_REPEAT(GMOCK_INTERNAL_ARG, , 10)
+
+#define GMOCK_INTERNAL_TEMPLATE_ARG(i, data, el) , typename arg##i##_type
+#define GMOCK_ACTION_TEMPLATE_ARGS_NAMES_ \
+ GMOCK_PP_TAIL(GMOCK_PP_REPEAT(GMOCK_INTERNAL_TEMPLATE_ARG, , 10))
+
+#define GMOCK_INTERNAL_TYPENAME_PARAM(i, data, param) , typename param##_type
+#define GMOCK_ACTION_TYPENAME_PARAMS_(params) \
+ GMOCK_PP_TAIL(GMOCK_PP_FOR_EACH(GMOCK_INTERNAL_TYPENAME_PARAM, , params))
+
+#define GMOCK_INTERNAL_TYPE_PARAM(i, data, param) , param##_type
+#define GMOCK_ACTION_TYPE_PARAMS_(params) \
+ GMOCK_PP_TAIL(GMOCK_PP_FOR_EACH(GMOCK_INTERNAL_TYPE_PARAM, , params))
+
+#define GMOCK_INTERNAL_TYPE_GVALUE_PARAM(i, data, param) \
+ , param##_type gmock_p##i
+#define GMOCK_ACTION_TYPE_GVALUE_PARAMS_(params) \
+ GMOCK_PP_TAIL(GMOCK_PP_FOR_EACH(GMOCK_INTERNAL_TYPE_GVALUE_PARAM, , params))
+
+#define GMOCK_INTERNAL_GVALUE_PARAM(i, data, param) \
+ , std::forward<param##_type>(gmock_p##i)
+#define GMOCK_ACTION_GVALUE_PARAMS_(params) \
+ GMOCK_PP_TAIL(GMOCK_PP_FOR_EACH(GMOCK_INTERNAL_GVALUE_PARAM, , params))
+
+#define GMOCK_INTERNAL_INIT_PARAM(i, data, param) \
+ , param(::std::forward<param##_type>(gmock_p##i))
+#define GMOCK_ACTION_INIT_PARAMS_(params) \
+ GMOCK_PP_TAIL(GMOCK_PP_FOR_EACH(GMOCK_INTERNAL_INIT_PARAM, , params))
+
+#define GMOCK_INTERNAL_FIELD_PARAM(i, data, param) param##_type param;
+#define GMOCK_ACTION_FIELD_PARAMS_(params) \
+ GMOCK_PP_FOR_EACH(GMOCK_INTERNAL_FIELD_PARAM, , params)
+
+#define GMOCK_INTERNAL_ACTION(name, full_name, params) \
+ template <GMOCK_ACTION_TYPENAME_PARAMS_(params)> \
+ class full_name { \
+ public: \
+ explicit full_name(GMOCK_ACTION_TYPE_GVALUE_PARAMS_(params)) \
+ : impl_(std::make_shared<gmock_Impl>( \
+ GMOCK_ACTION_GVALUE_PARAMS_(params))) { } \
+ full_name(const full_name&) = default; \
+ full_name(full_name&&) noexcept = default; \
+ template <typename F> \
+ operator ::testing::Action<F>() const { \
+ return ::testing::internal::MakeAction<F>(impl_); \
+ } \
+ private: \
+ class gmock_Impl { \
+ public: \
+ explicit gmock_Impl(GMOCK_ACTION_TYPE_GVALUE_PARAMS_(params)) \
+ : GMOCK_ACTION_INIT_PARAMS_(params) {} \
+ template <typename function_type, typename return_type, \
+ typename args_type, GMOCK_ACTION_TEMPLATE_ARGS_NAMES_> \
+ return_type gmock_PerformImpl(GMOCK_ACTION_ARG_TYPES_AND_NAMES_) const; \
+ GMOCK_ACTION_FIELD_PARAMS_(params) \
+ }; \
+ std::shared_ptr<const gmock_Impl> impl_; \
+ }; \
+ template <GMOCK_ACTION_TYPENAME_PARAMS_(params)> \
+ inline full_name<GMOCK_ACTION_TYPE_PARAMS_(params)> name( \
+ GMOCK_ACTION_TYPE_GVALUE_PARAMS_(params)) { \
+ return full_name<GMOCK_ACTION_TYPE_PARAMS_(params)>( \
+ GMOCK_ACTION_GVALUE_PARAMS_(params)); \
+ } \
+ template <GMOCK_ACTION_TYPENAME_PARAMS_(params)> \
+ template <typename function_type, typename return_type, typename args_type, \
+ GMOCK_ACTION_TEMPLATE_ARGS_NAMES_> \
+ return_type full_name<GMOCK_ACTION_TYPE_PARAMS_(params)>::gmock_Impl:: \
+ gmock_PerformImpl(GMOCK_ACTION_ARG_TYPES_AND_NAMES_UNUSED_) const
+
+} // namespace internal
+
+// Similar to GMOCK_INTERNAL_ACTION, but no bound parameters are stored.
+#define ACTION(name) \
+ class name##Action { \
+ public: \
+ explicit name##Action() noexcept {} \
+ name##Action(const name##Action&) noexcept {} \
+ template <typename F> \
+ operator ::testing::Action<F>() const { \
+ return ::testing::internal::MakeAction<F, gmock_Impl>(); \
+ } \
+ private: \
+ class gmock_Impl { \
+ public: \
+ template <typename function_type, typename return_type, \
+ typename args_type, GMOCK_ACTION_TEMPLATE_ARGS_NAMES_> \
+ return_type gmock_PerformImpl(GMOCK_ACTION_ARG_TYPES_AND_NAMES_) const; \
+ }; \
+ }; \
+ inline name##Action name() GTEST_MUST_USE_RESULT_; \
+ inline name##Action name() { return name##Action(); } \
+ template <typename function_type, typename return_type, typename args_type, \
+ GMOCK_ACTION_TEMPLATE_ARGS_NAMES_> \
+ return_type name##Action::gmock_Impl::gmock_PerformImpl( \
+ GMOCK_ACTION_ARG_TYPES_AND_NAMES_UNUSED_) const
+
+#define ACTION_P(name, ...) \
+ GMOCK_INTERNAL_ACTION(name, name##ActionP, (__VA_ARGS__))
+
+#define ACTION_P2(name, ...) \
+ GMOCK_INTERNAL_ACTION(name, name##ActionP2, (__VA_ARGS__))
+
+#define ACTION_P3(name, ...) \
+ GMOCK_INTERNAL_ACTION(name, name##ActionP3, (__VA_ARGS__))
+
+#define ACTION_P4(name, ...) \
+ GMOCK_INTERNAL_ACTION(name, name##ActionP4, (__VA_ARGS__))
+
+#define ACTION_P5(name, ...) \
+ GMOCK_INTERNAL_ACTION(name, name##ActionP5, (__VA_ARGS__))
+
+#define ACTION_P6(name, ...) \
+ GMOCK_INTERNAL_ACTION(name, name##ActionP6, (__VA_ARGS__))
+
+#define ACTION_P7(name, ...) \
+ GMOCK_INTERNAL_ACTION(name, name##ActionP7, (__VA_ARGS__))
+
+#define ACTION_P8(name, ...) \
+ GMOCK_INTERNAL_ACTION(name, name##ActionP8, (__VA_ARGS__))
+
+#define ACTION_P9(name, ...) \
+ GMOCK_INTERNAL_ACTION(name, name##ActionP9, (__VA_ARGS__))
+
+#define ACTION_P10(name, ...) \
+ GMOCK_INTERNAL_ACTION(name, name##ActionP10, (__VA_ARGS__))
} // namespace testing
-#endif // GMOCK_INCLUDE_GMOCK_GMOCK_ACTIONS_H_
+#ifdef _MSC_VER
+# pragma warning(pop)
+#endif
+
+#endif // GOOGLEMOCK_INCLUDE_GMOCK_GMOCK_ACTIONS_H_
biod.pnpi.spb.ru / alexxy / gromacs.git / blobdiff