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// Copyright 2007, Google Inc.
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following disclaimer
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// in the documentation and/or other materials provided with the
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// distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived from
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// this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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// Google Mock - a framework for writing C++ mock classes.
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//
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// This file implements some commonly used actions.
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// GOOGLETEST_CM0002 DO NOT DELETE
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#ifndef GMOCK_INCLUDE_GMOCK_GMOCK_ACTIONS_H_
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#define GMOCK_INCLUDE_GMOCK_GMOCK_ACTIONS_H_
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#ifndef _WIN32_WCE
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# include <errno.h>
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#endif
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#include <algorithm>
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#include <string>
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#include "gmock/internal/gmock-internal-utils.h"
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#include "gmock/internal/gmock-port.h"
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#if GTEST_LANG_CXX11 // Defined by gtest-port.h via gmock-port.h.
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#include <functional>
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#include <type_traits>
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#endif // GTEST_LANG_CXX11
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namespace testing {
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// To implement an action Foo, define:
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// 1. a class FooAction that implements the ActionInterface interface, and
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// 2. a factory function that creates an Action object from a
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// const FooAction*.
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//
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// The two-level delegation design follows that of Matcher, providing
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// consistency for extension developers. It also eases ownership
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// management as Action objects can now be copied like plain values.
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namespace internal {
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template <typename F1, typename F2>
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class ActionAdaptor;
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// BuiltInDefaultValueGetter<T, true>::Get() returns a
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// default-constructed T value. BuiltInDefaultValueGetter<T,
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// false>::Get() crashes with an error.
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//
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// This primary template is used when kDefaultConstructible is true.
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template <typename T, bool kDefaultConstructible>
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struct BuiltInDefaultValueGetter {
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static T Get() { return T(); }
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};
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template <typename T>
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struct BuiltInDefaultValueGetter<T, false> {
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static T Get() {
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Assert(false, __FILE__, __LINE__,
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"Default action undefined for the function return type.");
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return internal::Invalid<T>();
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// The above statement will never be reached, but is required in
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// order for this function to compile.
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}
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};
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// BuiltInDefaultValue<T>::Get() returns the "built-in" default value
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// for type T, which is NULL when T is a raw pointer type, 0 when T is
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// a numeric type, false when T is bool, or "" when T is string or
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// std::string. In addition, in C++11 and above, it turns a
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// default-constructed T value if T is default constructible. For any
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// other type T, the built-in default T value is undefined, and the
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// function will abort the process.
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template <typename T>
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class BuiltInDefaultValue {
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public:
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#if GTEST_LANG_CXX11
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// This function returns true iff type T has a built-in default value.
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static bool Exists() {
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return ::std::is_default_constructible<T>::value;
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}
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static T Get() {
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return BuiltInDefaultValueGetter<
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T, ::std::is_default_constructible<T>::value>::Get();
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}
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#else // GTEST_LANG_CXX11
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// This function returns true iff type T has a built-in default value.
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static bool Exists() {
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return false;
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}
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static T Get() {
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return BuiltInDefaultValueGetter<T, false>::Get();
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}
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#endif // GTEST_LANG_CXX11
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};
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// This partial specialization says that we use the same built-in
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// default value for T and const T.
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template <typename T>
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class BuiltInDefaultValue<const T> {
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public:
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static bool Exists() { return BuiltInDefaultValue<T>::Exists(); }
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static T Get() { return BuiltInDefaultValue<T>::Get(); }
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};
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// This partial specialization defines the default values for pointer
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// types.
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template <typename T>
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class BuiltInDefaultValue<T*> {
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public:
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static bool Exists() { return true; }
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static T* Get() { return NULL; }
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};
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// The following specializations define the default values for
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// specific types we care about.
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#define GMOCK_DEFINE_DEFAULT_ACTION_FOR_RETURN_TYPE_(type, value) \
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template <> \
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class BuiltInDefaultValue<type> { \
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public: \
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static bool Exists() { return true; } \
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static type Get() { return value; } \
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}
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GMOCK_DEFINE_DEFAULT_ACTION_FOR_RETURN_TYPE_(void, ); // NOLINT
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#if GTEST_HAS_GLOBAL_STRING
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GMOCK_DEFINE_DEFAULT_ACTION_FOR_RETURN_TYPE_(::string, "");
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#endif // GTEST_HAS_GLOBAL_STRING
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GMOCK_DEFINE_DEFAULT_ACTION_FOR_RETURN_TYPE_(::std::string, "");
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GMOCK_DEFINE_DEFAULT_ACTION_FOR_RETURN_TYPE_(bool, false);
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GMOCK_DEFINE_DEFAULT_ACTION_FOR_RETURN_TYPE_(unsigned char, '\0');
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GMOCK_DEFINE_DEFAULT_ACTION_FOR_RETURN_TYPE_(signed char, '\0');
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GMOCK_DEFINE_DEFAULT_ACTION_FOR_RETURN_TYPE_(char, '\0');
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// There's no need for a default action for signed wchar_t, as that
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// type is the same as wchar_t for gcc, and invalid for MSVC.
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//
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// There's also no need for a default action for unsigned wchar_t, as
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// that type is the same as unsigned int for gcc, and invalid for
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// MSVC.
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#if GMOCK_WCHAR_T_IS_NATIVE_
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GMOCK_DEFINE_DEFAULT_ACTION_FOR_RETURN_TYPE_(wchar_t, 0U); // NOLINT
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#endif
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GMOCK_DEFINE_DEFAULT_ACTION_FOR_RETURN_TYPE_(unsigned short, 0U); // NOLINT
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GMOCK_DEFINE_DEFAULT_ACTION_FOR_RETURN_TYPE_(signed short, 0); // NOLINT
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GMOCK_DEFINE_DEFAULT_ACTION_FOR_RETURN_TYPE_(unsigned int, 0U);
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GMOCK_DEFINE_DEFAULT_ACTION_FOR_RETURN_TYPE_(signed int, 0);
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GMOCK_DEFINE_DEFAULT_ACTION_FOR_RETURN_TYPE_(unsigned long, 0UL); // NOLINT
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GMOCK_DEFINE_DEFAULT_ACTION_FOR_RETURN_TYPE_(signed long, 0L); // NOLINT
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GMOCK_DEFINE_DEFAULT_ACTION_FOR_RETURN_TYPE_(UInt64, 0);
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GMOCK_DEFINE_DEFAULT_ACTION_FOR_RETURN_TYPE_(Int64, 0);
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GMOCK_DEFINE_DEFAULT_ACTION_FOR_RETURN_TYPE_(float, 0);
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GMOCK_DEFINE_DEFAULT_ACTION_FOR_RETURN_TYPE_(double, 0);
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#undef GMOCK_DEFINE_DEFAULT_ACTION_FOR_RETURN_TYPE_
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} // namespace internal
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// When an unexpected function call is encountered, Google Mock will
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// let it return a default value if the user has specified one for its
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// return type, or if the return type has a built-in default value;
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// otherwise Google Mock won't know what value to return and will have
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// to abort the process.
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//
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// The DefaultValue<T> class allows a user to specify the
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// default value for a type T that is both copyable and publicly
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// destructible (i.e. anything that can be used as a function return
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// type). The usage is:
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//
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// // Sets the default value for type T to be foo.
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// DefaultValue<T>::Set(foo);
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template <typename T>
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class DefaultValue {
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public:
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// Sets the default value for type T; requires T to be
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// copy-constructable and have a public destructor.
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static void Set(T x) {
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delete producer_;
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producer_ = new FixedValueProducer(x);
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}
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// Provides a factory function to be called to generate the default value.
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// This method can be used even if T is only move-constructible, but it is not
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// limited to that case.
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typedef T (*FactoryFunction)();
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static void SetFactory(FactoryFunction factory) {
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delete producer_;
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producer_ = new FactoryValueProducer(factory);
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}
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// Unsets the default value for type T.
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static void Clear() {
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delete producer_;
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producer_ = NULL;
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}
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// Returns true iff the user has set the default value for type T.
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static bool IsSet() { return producer_ != NULL; }
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// Returns true if T has a default return value set by the user or there
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// exists a built-in default value.
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static bool Exists() {
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return IsSet() || internal::BuiltInDefaultValue<T>::Exists();
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}
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// Returns the default value for type T if the user has set one;
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// otherwise returns the built-in default value. Requires that Exists()
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// is true, which ensures that the return value is well-defined.
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static T Get() {
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return producer_ == NULL ?
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internal::BuiltInDefaultValue<T>::Get() : producer_->Produce();
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}
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private:
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class ValueProducer {
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public:
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virtual ~ValueProducer() {}
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virtual T Produce() = 0;
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};
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class FixedValueProducer : public ValueProducer {
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public:
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explicit FixedValueProducer(T value) : value_(value) {}
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virtual T Produce() { return value_; }
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private:
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const T value_;
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GTEST_DISALLOW_COPY_AND_ASSIGN_(FixedValueProducer);
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};
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class FactoryValueProducer : public ValueProducer {
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public:
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explicit FactoryValueProducer(FactoryFunction factory)
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: factory_(factory) {}
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virtual T Produce() { return factory_(); }
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private:
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const FactoryFunction factory_;
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GTEST_DISALLOW_COPY_AND_ASSIGN_(FactoryValueProducer);
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};
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static ValueProducer* producer_;
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};
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// This partial specialization allows a user to set default values for
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// reference types.
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template <typename T>
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class DefaultValue<T&> {
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public:
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// Sets the default value for type T&.
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static void Set(T& x) { // NOLINT
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address_ = &x;
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}
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// Unsets the default value for type T&.
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static void Clear() {
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address_ = NULL;
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}
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// Returns true iff the user has set the default value for type T&.
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static bool IsSet() { return address_ != NULL; }
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// Returns true if T has a default return value set by the user or there
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// exists a built-in default value.
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static bool Exists() {
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return IsSet() || internal::BuiltInDefaultValue<T&>::Exists();
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}
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// Returns the default value for type T& if the user has set one;
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// otherwise returns the built-in default value if there is one;
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// otherwise aborts the process.
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static T& Get() {
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return address_ == NULL ?
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internal::BuiltInDefaultValue<T&>::Get() : *address_;
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}
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private:
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static T* address_;
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};
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// This specialization allows DefaultValue<void>::Get() to
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// compile.
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template <>
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class DefaultValue<void> {
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public:
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static bool Exists() { return true; }
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static void Get() {}
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};
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// Points to the user-set default value for type T.
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template <typename T>
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typename DefaultValue<T>::ValueProducer* DefaultValue<T>::producer_ = NULL;
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// Points to the user-set default value for type T&.
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template <typename T>
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T* DefaultValue<T&>::address_ = NULL;
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// Implement this interface to define an action for function type F.
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template <typename F>
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class ActionInterface {
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public:
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typedef typename internal::Function<F>::Result Result;
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typedef typename internal::Function<F>::ArgumentTuple ArgumentTuple;
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ActionInterface() {}
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virtual ~ActionInterface() {}
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// Performs the action. This method is not const, as in general an
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// action can have side effects and be stateful. For example, a
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// get-the-next-element-from-the-collection action will need to
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// remember the current element.
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virtual Result Perform(const ArgumentTuple& args) = 0;
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private:
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GTEST_DISALLOW_COPY_AND_ASSIGN_(ActionInterface);
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};
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// An Action<F> is a copyable and IMMUTABLE (except by assignment)
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// object that represents an action to be taken when a mock function
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// of type F is called. The implementation of Action<T> is just a
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// linked_ptr to const ActionInterface<T>, so copying is fairly cheap.
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// Don't inherit from Action!
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//
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// You can view an object implementing ActionInterface<F> as a
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// concrete action (including its current state), and an Action<F>
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// object as a handle to it.
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template <typename F>
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class Action {
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public:
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typedef typename internal::Function<F>::Result Result;
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typedef typename internal::Function<F>::ArgumentTuple ArgumentTuple;
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// Constructs a null Action. Needed for storing Action objects in
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// STL containers.
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Action() {}
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#if GTEST_LANG_CXX11
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// Construct an Action from a specified callable.
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// This cannot take std::function directly, because then Action would not be
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// directly constructible from lambda (it would require two conversions).
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template <typename G,
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typename = typename ::std::enable_if<
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::std::is_constructible<::std::function<F>, G>::value>::type>
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Action(G&& fun) : fun_(::std::forward<G>(fun)) {} // NOLINT
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#endif
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// Constructs an Action from its implementation.
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explicit Action(ActionInterface<F>* impl) : impl_(impl) {}
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// This constructor allows us to turn an Action<Func> object into an
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// Action<F>, as long as F's arguments can be implicitly converted
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// to Func's and Func's return type can be implicitly converted to
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// F's.
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template <typename Func>
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explicit Action(const Action<Func>& action);
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// Returns true iff this is the DoDefault() action.
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bool IsDoDefault() const {
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#if GTEST_LANG_CXX11
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return impl_ == nullptr && fun_ == nullptr;
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#else
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return impl_ == NULL;
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#endif
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}
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// Performs the action. Note that this method is const even though
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// the corresponding method in ActionInterface is not. The reason
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// is that a const Action<F> means that it cannot be re-bound to
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// another concrete action, not that the concrete action it binds to
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// cannot change state. (Think of the difference between a const
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// pointer and a pointer to const.)
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Result Perform(ArgumentTuple args) const {
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if (IsDoDefault()) {
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internal::IllegalDoDefault(__FILE__, __LINE__);
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}
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#if GTEST_LANG_CXX11
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if (fun_ != nullptr) {
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return internal::Apply(fun_, ::std::move(args));
|
|
408 |
}
|
|
409 |
#endif
|
|
410 |
return impl_->Perform(args);
|
|
411 |
}
|
|
412 |
|
|
413 |
private:
|
|
414 |
template <typename F1, typename F2>
|
|
415 |
friend class internal::ActionAdaptor;
|
|
416 |
|
|
417 |
template <typename G>
|
|
418 |
friend class Action;
|
|
419 |
|
|
420 |
// In C++11, Action can be implemented either as a generic functor (through
|
|
421 |
// std::function), or legacy ActionInterface. In C++98, only ActionInterface
|
|
422 |
// is available. The invariants are as follows:
|
|
423 |
// * in C++98, impl_ is null iff this is the default action
|
|
424 |
// * in C++11, at most one of fun_ & impl_ may be nonnull; both are null iff
|
|
425 |
// this is the default action
|
|
426 |
#if GTEST_LANG_CXX11
|
|
427 |
::std::function<F> fun_;
|
|
428 |
#endif
|
|
429 |
internal::linked_ptr<ActionInterface<F> > impl_;
|
|
430 |
};
|
|
431 |
|
|
432 |
// The PolymorphicAction class template makes it easy to implement a
|
|
433 |
// polymorphic action (i.e. an action that can be used in mock
|
|
434 |
// functions of than one type, e.g. Return()).
|
|
435 |
//
|
|
436 |
// To define a polymorphic action, a user first provides a COPYABLE
|
|
437 |
// implementation class that has a Perform() method template:
|
|
438 |
//
|
|
439 |
// class FooAction {
|
|
440 |
// public:
|
|
441 |
// template <typename Result, typename ArgumentTuple>
|
|
442 |
// Result Perform(const ArgumentTuple& args) const {
|
|
443 |
// // Processes the arguments and returns a result, using
|
|
444 |
// // tr1::get<N>(args) to get the N-th (0-based) argument in the tuple.
|
|
445 |
// }
|
|
446 |
// ...
|
|
447 |
// };
|
|
448 |
//
|
|
449 |
// Then the user creates the polymorphic action using
|
|
450 |
// MakePolymorphicAction(object) where object has type FooAction. See
|
|
451 |
// the definition of Return(void) and SetArgumentPointee<N>(value) for
|
|
452 |
// complete examples.
|
|
453 |
template <typename Impl>
|
|
454 |
class PolymorphicAction {
|
|
455 |
public:
|
|
456 |
explicit PolymorphicAction(const Impl& impl) : impl_(impl) {}
|
|
457 |
|
|
458 |
template <typename F>
|
|
459 |
operator Action<F>() const {
|
|
460 |
return Action<F>(new MonomorphicImpl<F>(impl_));
|
|
461 |
}
|
|
462 |
|
|
463 |
private:
|
|
464 |
template <typename F>
|
|
465 |
class MonomorphicImpl : public ActionInterface<F> {
|
|
466 |
public:
|
|
467 |
typedef typename internal::Function<F>::Result Result;
|
|
468 |
typedef typename internal::Function<F>::ArgumentTuple ArgumentTuple;
|
|
469 |
|
|
470 |
explicit MonomorphicImpl(const Impl& impl) : impl_(impl) {}
|
|
471 |
|
|
472 |
virtual Result Perform(const ArgumentTuple& args) {
|
|
473 |
return impl_.template Perform<Result>(args);
|
|
474 |
}
|
|
475 |
|
|
476 |
private:
|
|
477 |
Impl impl_;
|
|
478 |
|
|
479 |
GTEST_DISALLOW_ASSIGN_(MonomorphicImpl);
|
|
480 |
};
|
|
481 |
|
|
482 |
Impl impl_;
|
|
483 |
|
|
484 |
GTEST_DISALLOW_ASSIGN_(PolymorphicAction);
|
|
485 |
};
|
|
486 |
|
|
487 |
// Creates an Action from its implementation and returns it. The
|
|
488 |
// created Action object owns the implementation.
|
|
489 |
template <typename F>
|
|
490 |
Action<F> MakeAction(ActionInterface<F>* impl) {
|
|
491 |
return Action<F>(impl);
|
|
492 |
}
|
|
493 |
|
|
494 |
// Creates a polymorphic action from its implementation. This is
|
|
495 |
// easier to use than the PolymorphicAction<Impl> constructor as it
|
|
496 |
// doesn't require you to explicitly write the template argument, e.g.
|
|
497 |
//
|
|
498 |
// MakePolymorphicAction(foo);
|
|
499 |
// vs
|
|
500 |
// PolymorphicAction<TypeOfFoo>(foo);
|
|
501 |
template <typename Impl>
|
|
502 |
inline PolymorphicAction<Impl> MakePolymorphicAction(const Impl& impl) {
|
|
503 |
return PolymorphicAction<Impl>(impl);
|
|
504 |
}
|
|
505 |
|
|
506 |
namespace internal {
|
|
507 |
|
|
508 |
// Allows an Action<F2> object to pose as an Action<F1>, as long as F2
|
|
509 |
// and F1 are compatible.
|
|
510 |
template <typename F1, typename F2>
|
|
511 |
class ActionAdaptor : public ActionInterface<F1> {
|
|
512 |
public:
|
|
513 |
typedef typename internal::Function<F1>::Result Result;
|
|
514 |
typedef typename internal::Function<F1>::ArgumentTuple ArgumentTuple;
|
|
515 |
|
|
516 |
explicit ActionAdaptor(const Action<F2>& from) : impl_(from.impl_) {}
|
|
517 |
|
|
518 |
virtual Result Perform(const ArgumentTuple& args) {
|
|
519 |
return impl_->Perform(args);
|
|
520 |
}
|
|
521 |
|
|
522 |
private:
|
|
523 |
const internal::linked_ptr<ActionInterface<F2> > impl_;
|
|
524 |
|
|
525 |
GTEST_DISALLOW_ASSIGN_(ActionAdaptor);
|
|
526 |
};
|
|
527 |
|
|
528 |
// Helper struct to specialize ReturnAction to execute a move instead of a copy
|
|
529 |
// on return. Useful for move-only types, but could be used on any type.
|
|
530 |
template <typename T>
|
|
531 |
struct ByMoveWrapper {
|
|
532 |
explicit ByMoveWrapper(T value) : payload(internal::move(value)) {}
|
|
533 |
T payload;
|
|
534 |
};
|
|
535 |
|
|
536 |
// Implements the polymorphic Return(x) action, which can be used in
|
|
537 |
// any function that returns the type of x, regardless of the argument
|
|
538 |
// types.
|
|
539 |
//
|
|
540 |
// Note: The value passed into Return must be converted into
|
|
541 |
// Function<F>::Result when this action is cast to Action<F> rather than
|
|
542 |
// when that action is performed. This is important in scenarios like
|
|
543 |
//
|
|
544 |
// MOCK_METHOD1(Method, T(U));
|
|
545 |
// ...
|
|
546 |
// {
|
|
547 |
// Foo foo;
|
|
548 |
// X x(&foo);
|
|
549 |
// EXPECT_CALL(mock, Method(_)).WillOnce(Return(x));
|
|
550 |
// }
|
|
551 |
//
|
|
552 |
// In the example above the variable x holds reference to foo which leaves
|
|
553 |
// scope and gets destroyed. If copying X just copies a reference to foo,
|
|
554 |
// that copy will be left with a hanging reference. If conversion to T
|
|
555 |
// makes a copy of foo, the above code is safe. To support that scenario, we
|
|
556 |
// need to make sure that the type conversion happens inside the EXPECT_CALL
|
|
557 |
// statement, and conversion of the result of Return to Action<T(U)> is a
|
|
558 |
// good place for that.
|
|
559 |
//
|
|
560 |
// The real life example of the above scenario happens when an invocation
|
|
561 |
// of gtl::Container() is passed into Return.
|
|
562 |
//
|
|
563 |
template <typename R>
|
|
564 |
class ReturnAction {
|
|
565 |
public:
|
|
566 |
// Constructs a ReturnAction object from the value to be returned.
|
|
567 |
// 'value' is passed by value instead of by const reference in order
|
|
568 |
// to allow Return("string literal") to compile.
|
|
569 |
explicit ReturnAction(R value) : value_(new R(internal::move(value))) {}
|
|
570 |
|
|
571 |
// This template type conversion operator allows Return(x) to be
|
|
572 |
// used in ANY function that returns x's type.
|
|
573 |
template <typename F>
|
|
574 |
operator Action<F>() const {
|
|
575 |
// Assert statement belongs here because this is the best place to verify
|
|
576 |
// conditions on F. It produces the clearest error messages
|
|
577 |
// in most compilers.
|
|
578 |
// Impl really belongs in this scope as a local class but can't
|
|
579 |
// because MSVC produces duplicate symbols in different translation units
|
|
580 |
// in this case. Until MS fixes that bug we put Impl into the class scope
|
|
581 |
// and put the typedef both here (for use in assert statement) and
|
|
582 |
// in the Impl class. But both definitions must be the same.
|
|
583 |
typedef typename Function<F>::Result Result;
|
|
584 |
GTEST_COMPILE_ASSERT_(
|
|
585 |
!is_reference<Result>::value,
|
|
586 |
use_ReturnRef_instead_of_Return_to_return_a_reference);
|
|
587 |
return Action<F>(new Impl<R, F>(value_));
|
|
588 |
}
|
|
589 |
|
|
590 |
private:
|
|
591 |
// Implements the Return(x) action for a particular function type F.
|
|
592 |
template <typename R_, typename F>
|
|
593 |
class Impl : public ActionInterface<F> {
|
|
594 |
public:
|
|
595 |
typedef typename Function<F>::Result Result;
|
|
596 |
typedef typename Function<F>::ArgumentTuple ArgumentTuple;
|
|
597 |
|
|
598 |
// The implicit cast is necessary when Result has more than one
|
|
599 |
// single-argument constructor (e.g. Result is std::vector<int>) and R
|
|
600 |
// has a type conversion operator template. In that case, value_(value)
|
|
601 |
// won't compile as the compiler doesn't known which constructor of
|
|
602 |
// Result to call. ImplicitCast_ forces the compiler to convert R to
|
|
603 |
// Result without considering explicit constructors, thus resolving the
|
|
604 |
// ambiguity. value_ is then initialized using its copy constructor.
|
|
605 |
explicit Impl(const linked_ptr<R>& value)
|
|
606 |
: value_before_cast_(*value),
|
|
607 |
value_(ImplicitCast_<Result>(value_before_cast_)) {}
|
|
608 |
|
|
609 |
virtual Result Perform(const ArgumentTuple&) { return value_; }
|
|
610 |
|
|
611 |
private:
|
|
612 |
GTEST_COMPILE_ASSERT_(!is_reference<Result>::value,
|
|
613 |
Result_cannot_be_a_reference_type);
|
|
614 |
// We save the value before casting just in case it is being cast to a
|
|
615 |
// wrapper type.
|
|
616 |
R value_before_cast_;
|
|
617 |
Result value_;
|
|
618 |
|
|
619 |
GTEST_DISALLOW_COPY_AND_ASSIGN_(Impl);
|
|
620 |
};
|
|
621 |
|
|
622 |
// Partially specialize for ByMoveWrapper. This version of ReturnAction will
|
|
623 |
// move its contents instead.
|
|
624 |
template <typename R_, typename F>
|
|
625 |
class Impl<ByMoveWrapper<R_>, F> : public ActionInterface<F> {
|
|
626 |
public:
|
|
627 |
typedef typename Function<F>::Result Result;
|
|
628 |
typedef typename Function<F>::ArgumentTuple ArgumentTuple;
|
|
629 |
|
|
630 |
explicit Impl(const linked_ptr<R>& wrapper)
|
|
631 |
: performed_(false), wrapper_(wrapper) {}
|
|
632 |
|
|
633 |
virtual Result Perform(const ArgumentTuple&) {
|
|
634 |
GTEST_CHECK_(!performed_)
|
|
635 |
<< "A ByMove() action should only be performed once.";
|
|
636 |
performed_ = true;
|
|
637 |
return internal::move(wrapper_->payload);
|
|
638 |
}
|
|
639 |
|
|
640 |
private:
|
|
641 |
bool performed_;
|
|
642 |
const linked_ptr<R> wrapper_;
|
|
643 |
|
|
644 |
GTEST_DISALLOW_ASSIGN_(Impl);
|
|
645 |
};
|
|
646 |
|
|
647 |
const linked_ptr<R> value_;
|
|
648 |
|
|
649 |
GTEST_DISALLOW_ASSIGN_(ReturnAction);
|
|
650 |
};
|
|
651 |
|
|
652 |
// Implements the ReturnNull() action.
|
|
653 |
class ReturnNullAction {
|
|
654 |
public:
|
|
655 |
// Allows ReturnNull() to be used in any pointer-returning function. In C++11
|
|
656 |
// this is enforced by returning nullptr, and in non-C++11 by asserting a
|
|
657 |
// pointer type on compile time.
|
|
658 |
template <typename Result, typename ArgumentTuple>
|
|
659 |
static Result Perform(const ArgumentTuple&) {
|
|
660 |
#if GTEST_LANG_CXX11
|
|
661 |
return nullptr;
|
|
662 |
#else
|
|
663 |
GTEST_COMPILE_ASSERT_(internal::is_pointer<Result>::value,
|
|
664 |
ReturnNull_can_be_used_to_return_a_pointer_only);
|
|
665 |
return NULL;
|
|
666 |
#endif // GTEST_LANG_CXX11
|
|
667 |
}
|
|
668 |
};
|
|
669 |
|
|
670 |
// Implements the Return() action.
|
|
671 |
class ReturnVoidAction {
|
|
672 |
public:
|
|
673 |
// Allows Return() to be used in any void-returning function.
|
|
674 |
template <typename Result, typename ArgumentTuple>
|
|
675 |
static void Perform(const ArgumentTuple&) {
|
|
676 |
CompileAssertTypesEqual<void, Result>();
|
|
677 |
}
|
|
678 |
};
|
|
679 |
|
|
680 |
// Implements the polymorphic ReturnRef(x) action, which can be used
|
|
681 |
// in any function that returns a reference to the type of x,
|
|
682 |
// regardless of the argument types.
|
|
683 |
template <typename T>
|
|
684 |
class ReturnRefAction {
|
|
685 |
public:
|
|
686 |
// Constructs a ReturnRefAction object from the reference to be returned.
|
|
687 |
explicit ReturnRefAction(T& ref) : ref_(ref) {} // NOLINT
|
|
688 |
|
|
689 |
// This template type conversion operator allows ReturnRef(x) to be
|
|
690 |
// used in ANY function that returns a reference to x's type.
|
|
691 |
template <typename F>
|
|
692 |
operator Action<F>() const {
|
|
693 |
typedef typename Function<F>::Result Result;
|
|
694 |
// Asserts that the function return type is a reference. This
|
|
695 |
// catches the user error of using ReturnRef(x) when Return(x)
|
|
696 |
// should be used, and generates some helpful error message.
|
|
697 |
GTEST_COMPILE_ASSERT_(internal::is_reference<Result>::value,
|
|
698 |
use_Return_instead_of_ReturnRef_to_return_a_value);
|
|
699 |
return Action<F>(new Impl<F>(ref_));
|
|
700 |
}
|
|
701 |
|
|
702 |
private:
|
|
703 |
// Implements the ReturnRef(x) action for a particular function type F.
|
|
704 |
template <typename F>
|
|
705 |
class Impl : public ActionInterface<F> {
|
|
706 |
public:
|
|
707 |
typedef typename Function<F>::Result Result;
|
|
708 |
typedef typename Function<F>::ArgumentTuple ArgumentTuple;
|
|
709 |
|
|
710 |
explicit Impl(T& ref) : ref_(ref) {} // NOLINT
|
|
711 |
|
|
712 |
virtual Result Perform(const ArgumentTuple&) {
|
|
713 |
return ref_;
|
|
714 |
}
|
|
715 |
|
|
716 |
private:
|
|
717 |
T& ref_;
|
|
718 |
|
|
719 |
GTEST_DISALLOW_ASSIGN_(Impl);
|
|
720 |
};
|
|
721 |
|
|
722 |
T& ref_;
|
|
723 |
|
|
724 |
GTEST_DISALLOW_ASSIGN_(ReturnRefAction);
|
|
725 |
};
|
|
726 |
|
|
727 |
// Implements the polymorphic ReturnRefOfCopy(x) action, which can be
|
|
728 |
// used in any function that returns a reference to the type of x,
|
|
729 |
// regardless of the argument types.
|
|
730 |
template <typename T>
|
|
731 |
class ReturnRefOfCopyAction {
|
|
732 |
public:
|
|
733 |
// Constructs a ReturnRefOfCopyAction object from the reference to
|
|
734 |
// be returned.
|
|
735 |
explicit ReturnRefOfCopyAction(const T& value) : value_(value) {} // NOLINT
|
|
736 |
|
|
737 |
// This template type conversion operator allows ReturnRefOfCopy(x) to be
|
|
738 |
// used in ANY function that returns a reference to x's type.
|
|
739 |
template <typename F>
|
|
740 |
operator Action<F>() const {
|
|
741 |
typedef typename Function<F>::Result Result;
|
|
742 |
// Asserts that the function return type is a reference. This
|
|
743 |
// catches the user error of using ReturnRefOfCopy(x) when Return(x)
|
|
744 |
// should be used, and generates some helpful error message.
|
|
745 |
GTEST_COMPILE_ASSERT_(
|
|
746 |
internal::is_reference<Result>::value,
|
|
747 |
use_Return_instead_of_ReturnRefOfCopy_to_return_a_value);
|
|
748 |
return Action<F>(new Impl<F>(value_));
|
|
749 |
}
|
|
750 |
|
|
751 |
private:
|
|
752 |
// Implements the ReturnRefOfCopy(x) action for a particular function type F.
|
|
753 |
template <typename F>
|
|
754 |
class Impl : public ActionInterface<F> {
|
|
755 |
public:
|
|
756 |
typedef typename Function<F>::Result Result;
|
|
757 |
typedef typename Function<F>::ArgumentTuple ArgumentTuple;
|
|
758 |
|
|
759 |
explicit Impl(const T& value) : value_(value) {} // NOLINT
|
|
760 |
|
|
761 |
virtual Result Perform(const ArgumentTuple&) {
|
|
762 |
return value_;
|
|
763 |
}
|
|
764 |
|
|
765 |
private:
|
|
766 |
T value_;
|
|
767 |
|
|
768 |
GTEST_DISALLOW_ASSIGN_(Impl);
|
|
769 |
};
|
|
770 |
|
|
771 |
const T value_;
|
|
772 |
|
|
773 |
GTEST_DISALLOW_ASSIGN_(ReturnRefOfCopyAction);
|
|
774 |
};
|
|
775 |
|
|
776 |
// Implements the polymorphic DoDefault() action.
|
|
777 |
class DoDefaultAction {
|
|
778 |
public:
|
|
779 |
// This template type conversion operator allows DoDefault() to be
|
|
780 |
// used in any function.
|
|
781 |
template <typename F>
|
|
782 |
operator Action<F>() const { return Action<F>(); } // NOLINT
|
|
783 |
};
|
|
784 |
|
|
785 |
// Implements the Assign action to set a given pointer referent to a
|
|
786 |
// particular value.
|
|
787 |
template <typename T1, typename T2>
|
|
788 |
class AssignAction {
|
|
789 |
public:
|
|
790 |
AssignAction(T1* ptr, T2 value) : ptr_(ptr), value_(value) {}
|
|
791 |
|
|
792 |
template <typename Result, typename ArgumentTuple>
|
|
793 |
void Perform(const ArgumentTuple& /* args */) const {
|
|
794 |
*ptr_ = value_;
|
|
795 |
}
|
|
796 |
|
|
797 |
private:
|
|
798 |
T1* const ptr_;
|
|
799 |
const T2 value_;
|
|
800 |
|
|
801 |
GTEST_DISALLOW_ASSIGN_(AssignAction);
|
|
802 |
};
|
|
803 |
|
|
804 |
#if !GTEST_OS_WINDOWS_MOBILE
|
|
805 |
|
|
806 |
// Implements the SetErrnoAndReturn action to simulate return from
|
|
807 |
// various system calls and libc functions.
|
|
808 |
template <typename T>
|
|
809 |
class SetErrnoAndReturnAction {
|
|
810 |
public:
|
|
811 |
SetErrnoAndReturnAction(int errno_value, T result)
|
|
812 |
: errno_(errno_value),
|
|
813 |
result_(result) {}
|
|
814 |
template <typename Result, typename ArgumentTuple>
|
|
815 |
Result Perform(const ArgumentTuple& /* args */) const {
|
|
816 |
errno = errno_;
|
|
817 |
return result_;
|
|
818 |
}
|
|
819 |
|
|
820 |
private:
|
|
821 |
const int errno_;
|
|
822 |
const T result_;
|
|
823 |
|
|
824 |
GTEST_DISALLOW_ASSIGN_(SetErrnoAndReturnAction);
|
|
825 |
};
|
|
826 |
|
|
827 |
#endif // !GTEST_OS_WINDOWS_MOBILE
|
|
828 |
|
|
829 |
// Implements the SetArgumentPointee<N>(x) action for any function
|
|
830 |
// whose N-th argument (0-based) is a pointer to x's type. The
|
|
831 |
// template parameter kIsProto is true iff type A is ProtocolMessage,
|
|
832 |
// proto2::Message, or a sub-class of those.
|
|
833 |
template <size_t N, typename A, bool kIsProto>
|
|
834 |
class SetArgumentPointeeAction {
|
|
835 |
public:
|
|
836 |
// Constructs an action that sets the variable pointed to by the
|
|
837 |
// N-th function argument to 'value'.
|
|
838 |
explicit SetArgumentPointeeAction(const A& value) : value_(value) {}
|
|
839 |
|
|
840 |
template <typename Result, typename ArgumentTuple>
|
|
841 |
void Perform(const ArgumentTuple& args) const {
|
|
842 |
CompileAssertTypesEqual<void, Result>();
|
|
843 |
*::testing::get<N>(args) = value_;
|
|
844 |
}
|
|
845 |
|
|
846 |
private:
|
|
847 |
const A value_;
|
|
848 |
|
|
849 |
GTEST_DISALLOW_ASSIGN_(SetArgumentPointeeAction);
|
|
850 |
};
|
|
851 |
|
|
852 |
template <size_t N, typename Proto>
|
|
853 |
class SetArgumentPointeeAction<N, Proto, true> {
|
|
854 |
public:
|
|
855 |
// Constructs an action that sets the variable pointed to by the
|
|
856 |
// N-th function argument to 'proto'. Both ProtocolMessage and
|
|
857 |
// proto2::Message have the CopyFrom() method, so the same
|
|
858 |
// implementation works for both.
|
|
859 |
explicit SetArgumentPointeeAction(const Proto& proto) : proto_(new Proto) {
|
|
860 |
proto_->CopyFrom(proto);
|
|
861 |
}
|
|
862 |
|
|
863 |
template <typename Result, typename ArgumentTuple>
|
|
864 |
void Perform(const ArgumentTuple& args) const {
|
|
865 |
CompileAssertTypesEqual<void, Result>();
|
|
866 |
::testing::get<N>(args)->CopyFrom(*proto_);
|
|
867 |
}
|
|
868 |
|
|
869 |
private:
|
|
870 |
const internal::linked_ptr<Proto> proto_;
|
|
871 |
|
|
872 |
GTEST_DISALLOW_ASSIGN_(SetArgumentPointeeAction);
|
|
873 |
};
|
|
874 |
|
|
875 |
// Implements the InvokeWithoutArgs(f) action. The template argument
|
|
876 |
// FunctionImpl is the implementation type of f, which can be either a
|
|
877 |
// function pointer or a functor. InvokeWithoutArgs(f) can be used as an
|
|
878 |
// Action<F> as long as f's type is compatible with F (i.e. f can be
|
|
879 |
// assigned to a tr1::function<F>).
|
|
880 |
template <typename FunctionImpl>
|
|
881 |
class InvokeWithoutArgsAction {
|
|
882 |
public:
|
|
883 |
// The c'tor makes a copy of function_impl (either a function
|
|
884 |
// pointer or a functor).
|
|
885 |
explicit InvokeWithoutArgsAction(FunctionImpl function_impl)
|
|
886 |
: function_impl_(function_impl) {}
|
|
887 |
|
|
888 |
// Allows InvokeWithoutArgs(f) to be used as any action whose type is
|
|
889 |
// compatible with f.
|
|
890 |
template <typename Result, typename ArgumentTuple>
|
|
891 |
Result Perform(const ArgumentTuple&) { return function_impl_(); }
|
|
892 |
|
|
893 |
private:
|
|
894 |
FunctionImpl function_impl_;
|
|
895 |
|
|
896 |
GTEST_DISALLOW_ASSIGN_(InvokeWithoutArgsAction);
|
|
897 |
};
|
|
898 |
|
|
899 |
// Implements the InvokeWithoutArgs(object_ptr, &Class::Method) action.
|
|
900 |
template <class Class, typename MethodPtr>
|
|
901 |
class InvokeMethodWithoutArgsAction {
|
|
902 |
public:
|
|
903 |
InvokeMethodWithoutArgsAction(Class* obj_ptr, MethodPtr method_ptr)
|
|
904 |
: obj_ptr_(obj_ptr), method_ptr_(method_ptr) {}
|
|
905 |
|
|
906 |
template <typename Result, typename ArgumentTuple>
|
|
907 |
Result Perform(const ArgumentTuple&) const {
|
|
908 |
return (obj_ptr_->*method_ptr_)();
|
|
909 |
}
|
|
910 |
|
|
911 |
private:
|
|
912 |
Class* const obj_ptr_;
|
|
913 |
const MethodPtr method_ptr_;
|
|
914 |
|
|
915 |
GTEST_DISALLOW_ASSIGN_(InvokeMethodWithoutArgsAction);
|
|
916 |
};
|
|
917 |
|
|
918 |
// Implements the InvokeWithoutArgs(callback) action.
|
|
919 |
template <typename CallbackType>
|
|
920 |
class InvokeCallbackWithoutArgsAction {
|
|
921 |
public:
|
|
922 |
// The c'tor takes ownership of the callback.
|
|
923 |
explicit InvokeCallbackWithoutArgsAction(CallbackType* callback)
|
|
924 |
: callback_(callback) {
|
|
925 |
callback->CheckIsRepeatable(); // Makes sure the callback is permanent.
|
|
926 |
}
|
|
927 |
|
|
928 |
// This type conversion operator template allows Invoke(callback) to
|
|
929 |
// be used wherever the callback's return type can be implicitly
|
|
930 |
// converted to that of the mock function.
|
|
931 |
template <typename Result, typename ArgumentTuple>
|
|
932 |
Result Perform(const ArgumentTuple&) const { return callback_->Run(); }
|
|
933 |
|
|
934 |
private:
|
|
935 |
const internal::linked_ptr<CallbackType> callback_;
|
|
936 |
|
|
937 |
GTEST_DISALLOW_ASSIGN_(InvokeCallbackWithoutArgsAction);
|
|
938 |
};
|
|
939 |
|
|
940 |
// Implements the IgnoreResult(action) action.
|
|
941 |
template <typename A>
|
|
942 |
class IgnoreResultAction {
|
|
943 |
public:
|
|
944 |
explicit IgnoreResultAction(const A& action) : action_(action) {}
|
|
945 |
|
|
946 |
template <typename F>
|
|
947 |
operator Action<F>() const {
|
|
948 |
// Assert statement belongs here because this is the best place to verify
|
|
949 |
// conditions on F. It produces the clearest error messages
|
|
950 |
// in most compilers.
|
|
951 |
// Impl really belongs in this scope as a local class but can't
|
|
952 |
// because MSVC produces duplicate symbols in different translation units
|
|
953 |
// in this case. Until MS fixes that bug we put Impl into the class scope
|
|
954 |
// and put the typedef both here (for use in assert statement) and
|
|
955 |
// in the Impl class. But both definitions must be the same.
|
|
956 |
typedef typename internal::Function<F>::Result Result;
|
|
957 |
|
|
958 |
// Asserts at compile time that F returns void.
|
|
959 |
CompileAssertTypesEqual<void, Result>();
|
|
960 |
|
|
961 |
return Action<F>(new Impl<F>(action_));
|
|
962 |
}
|
|
963 |
|
|
964 |
private:
|
|
965 |
template <typename F>
|
|
966 |
class Impl : public ActionInterface<F> {
|
|
967 |
public:
|
|
968 |
typedef typename internal::Function<F>::Result Result;
|
|
969 |
typedef typename internal::Function<F>::ArgumentTuple ArgumentTuple;
|
|
970 |
|
|
971 |
explicit Impl(const A& action) : action_(action) {}
|
|
972 |
|
|
973 |
virtual void Perform(const ArgumentTuple& args) {
|
|
974 |
// Performs the action and ignores its result.
|
|
975 |
action_.Perform(args);
|
|
976 |
}
|
|
977 |
|
|
978 |
private:
|
|
979 |
// Type OriginalFunction is the same as F except that its return
|
|
980 |
// type is IgnoredValue.
|
|
981 |
typedef typename internal::Function<F>::MakeResultIgnoredValue
|
|
982 |
OriginalFunction;
|
|
983 |
|
|
984 |
const Action<OriginalFunction> action_;
|
|
985 |
|
|
986 |
GTEST_DISALLOW_ASSIGN_(Impl);
|
|
987 |
};
|
|
988 |
|
|
989 |
const A action_;
|
|
990 |
|
|
991 |
GTEST_DISALLOW_ASSIGN_(IgnoreResultAction);
|
|
992 |
};
|
|
993 |
|
|
994 |
// A ReferenceWrapper<T> object represents a reference to type T,
|
|
995 |
// which can be either const or not. It can be explicitly converted
|
|
996 |
// from, and implicitly converted to, a T&. Unlike a reference,
|
|
997 |
// ReferenceWrapper<T> can be copied and can survive template type
|
|
998 |
// inference. This is used to support by-reference arguments in the
|
|
999 |
// InvokeArgument<N>(...) action. The idea was from "reference
|
|
1000 |
// wrappers" in tr1, which we don't have in our source tree yet.
|
|
1001 |
template <typename T>
|
|
1002 |
class ReferenceWrapper {
|
|
1003 |
public:
|
|
1004 |
// Constructs a ReferenceWrapper<T> object from a T&.
|
|
1005 |
explicit ReferenceWrapper(T& l_value) : pointer_(&l_value) {} // NOLINT
|
|
1006 |
|
|
1007 |
// Allows a ReferenceWrapper<T> object to be implicitly converted to
|
|
1008 |
// a T&.
|
|
1009 |
operator T&() const { return *pointer_; }
|
|
1010 |
private:
|
|
1011 |
T* pointer_;
|
|
1012 |
};
|
|
1013 |
|
|
1014 |
// Allows the expression ByRef(x) to be printed as a reference to x.
|
|
1015 |
template <typename T>
|
|
1016 |
void PrintTo(const ReferenceWrapper<T>& ref, ::std::ostream* os) {
|
|
1017 |
T& value = ref;
|
|
1018 |
UniversalPrinter<T&>::Print(value, os);
|
|
1019 |
}
|
|
1020 |
|
|
1021 |
// Does two actions sequentially. Used for implementing the DoAll(a1,
|
|
1022 |
// a2, ...) action.
|
|
1023 |
template <typename Action1, typename Action2>
|
|
1024 |
class DoBothAction {
|
|
1025 |
public:
|
|
1026 |
DoBothAction(Action1 action1, Action2 action2)
|
|
1027 |
: action1_(action1), action2_(action2) {}
|
|
1028 |
|
|
1029 |
// This template type conversion operator allows DoAll(a1, ..., a_n)
|
|
1030 |
// to be used in ANY function of compatible type.
|
|
1031 |
template <typename F>
|
|
1032 |
operator Action<F>() const {
|
|
1033 |
return Action<F>(new Impl<F>(action1_, action2_));
|
|
1034 |
}
|
|
1035 |
|
|
1036 |
private:
|
|
1037 |
// Implements the DoAll(...) action for a particular function type F.
|
|
1038 |
template <typename F>
|
|
1039 |
class Impl : public ActionInterface<F> {
|
|
1040 |
public:
|
|
1041 |
typedef typename Function<F>::Result Result;
|
|
1042 |
typedef typename Function<F>::ArgumentTuple ArgumentTuple;
|
|
1043 |
typedef typename Function<F>::MakeResultVoid VoidResult;
|
|
1044 |
|
|
1045 |
Impl(const Action<VoidResult>& action1, const Action<F>& action2)
|
|
1046 |
: action1_(action1), action2_(action2) {}
|
|
1047 |
|
|
1048 |
virtual Result Perform(const ArgumentTuple& args) {
|
|
1049 |
action1_.Perform(args);
|
|
1050 |
return action2_.Perform(args);
|
|
1051 |
}
|
|
1052 |
|
|
1053 |
private:
|
|
1054 |
const Action<VoidResult> action1_;
|
|
1055 |
const Action<F> action2_;
|
|
1056 |
|
|
1057 |
GTEST_DISALLOW_ASSIGN_(Impl);
|
|
1058 |
};
|
|
1059 |
|
|
1060 |
Action1 action1_;
|
|
1061 |
Action2 action2_;
|
|
1062 |
|
|
1063 |
GTEST_DISALLOW_ASSIGN_(DoBothAction);
|
|
1064 |
};
|
|
1065 |
|
|
1066 |
} // namespace internal
|
|
1067 |
|
|
1068 |
// An Unused object can be implicitly constructed from ANY value.
|
|
1069 |
// This is handy when defining actions that ignore some or all of the
|
|
1070 |
// mock function arguments. For example, given
|
|
1071 |
//
|
|
1072 |
// MOCK_METHOD3(Foo, double(const string& label, double x, double y));
|
|
1073 |
// MOCK_METHOD3(Bar, double(int index, double x, double y));
|
|
1074 |
//
|
|
1075 |
// instead of
|
|
1076 |
//
|
|
1077 |
// double DistanceToOriginWithLabel(const string& label, double x, double y) {
|
|
1078 |
// return sqrt(x*x + y*y);
|
|
1079 |
// }
|
|
1080 |
// double DistanceToOriginWithIndex(int index, double x, double y) {
|
|
1081 |
// return sqrt(x*x + y*y);
|
|
1082 |
// }
|
|
1083 |
// ...
|
|
1084 |
// EXPECT_CALL(mock, Foo("abc", _, _))
|
|
1085 |
// .WillOnce(Invoke(DistanceToOriginWithLabel));
|
|
1086 |
// EXPECT_CALL(mock, Bar(5, _, _))
|
|
1087 |
// .WillOnce(Invoke(DistanceToOriginWithIndex));
|
|
1088 |
//
|
|
1089 |
// you could write
|
|
1090 |
//
|
|
1091 |
// // We can declare any uninteresting argument as Unused.
|
|
1092 |
// double DistanceToOrigin(Unused, double x, double y) {
|
|
1093 |
// return sqrt(x*x + y*y);
|
|
1094 |
// }
|
|
1095 |
// ...
|
|
1096 |
// EXPECT_CALL(mock, Foo("abc", _, _)).WillOnce(Invoke(DistanceToOrigin));
|
|
1097 |
// EXPECT_CALL(mock, Bar(5, _, _)).WillOnce(Invoke(DistanceToOrigin));
|
|
1098 |
typedef internal::IgnoredValue Unused;
|
|
1099 |
|
|
1100 |
// This constructor allows us to turn an Action<From> object into an
|
|
1101 |
// Action<To>, as long as To's arguments can be implicitly converted
|
|
1102 |
// to From's and From's return type cann be implicitly converted to
|
|
1103 |
// To's.
|
|
1104 |
template <typename To>
|
|
1105 |
template <typename From>
|
|
1106 |
Action<To>::Action(const Action<From>& from)
|
|
1107 |
:
|
|
1108 |
#if GTEST_LANG_CXX11
|
|
1109 |
fun_(from.fun_),
|
|
1110 |
#endif
|
|
1111 |
impl_(from.impl_ == NULL ? NULL
|
|
1112 |
: new internal::ActionAdaptor<To, From>(from)) {
|
|
1113 |
}
|
|
1114 |
|
|
1115 |
// Creates an action that returns 'value'. 'value' is passed by value
|
|
1116 |
// instead of const reference - otherwise Return("string literal")
|
|
1117 |
// will trigger a compiler error about using array as initializer.
|
|
1118 |
template <typename R>
|
|
1119 |
internal::ReturnAction<R> Return(R value) {
|
|
1120 |
return internal::ReturnAction<R>(internal::move(value));
|
|
1121 |
}
|
|
1122 |
|
|
1123 |
// Creates an action that returns NULL.
|
|
1124 |
inline PolymorphicAction<internal::ReturnNullAction> ReturnNull() {
|
|
1125 |
return MakePolymorphicAction(internal::ReturnNullAction());
|
|
1126 |
}
|
|
1127 |
|
|
1128 |
// Creates an action that returns from a void function.
|
|
1129 |
inline PolymorphicAction<internal::ReturnVoidAction> Return() {
|
|
1130 |
return MakePolymorphicAction(internal::ReturnVoidAction());
|
|
1131 |
}
|
|
1132 |
|
|
1133 |
// Creates an action that returns the reference to a variable.
|
|
1134 |
template <typename R>
|
|
1135 |
inline internal::ReturnRefAction<R> ReturnRef(R& x) { // NOLINT
|
|
1136 |
return internal::ReturnRefAction<R>(x);
|
|
1137 |
}
|
|
1138 |
|
|
1139 |
// Creates an action that returns the reference to a copy of the
|
|
1140 |
// argument. The copy is created when the action is constructed and
|
|
1141 |
// lives as long as the action.
|
|
1142 |
template <typename R>
|
|
1143 |
inline internal::ReturnRefOfCopyAction<R> ReturnRefOfCopy(const R& x) {
|
|
1144 |
return internal::ReturnRefOfCopyAction<R>(x);
|
|
1145 |
}
|
|
1146 |
|
|
1147 |
// Modifies the parent action (a Return() action) to perform a move of the
|
|
1148 |
// argument instead of a copy.
|
|
1149 |
// Return(ByMove()) actions can only be executed once and will assert this
|
|
1150 |
// invariant.
|
|
1151 |
template <typename R>
|
|
1152 |
internal::ByMoveWrapper<R> ByMove(R x) {
|
|
1153 |
return internal::ByMoveWrapper<R>(internal::move(x));
|
|
1154 |
}
|
|
1155 |
|
|
1156 |
// Creates an action that does the default action for the give mock function.
|
|
1157 |
inline internal::DoDefaultAction DoDefault() {
|
|
1158 |
return internal::DoDefaultAction();
|
|
1159 |
}
|
|
1160 |
|
|
1161 |
// Creates an action that sets the variable pointed by the N-th
|
|
1162 |
// (0-based) function argument to 'value'.
|
|
1163 |
template <size_t N, typename T>
|
|
1164 |
PolymorphicAction<
|
|
1165 |
internal::SetArgumentPointeeAction<
|
|
1166 |
N, T, internal::IsAProtocolMessage<T>::value> >
|
|
1167 |
SetArgPointee(const T& x) {
|
|
1168 |
return MakePolymorphicAction(internal::SetArgumentPointeeAction<
|
|
1169 |
N, T, internal::IsAProtocolMessage<T>::value>(x));
|
|
1170 |
}
|
|
1171 |
|
|
1172 |
#if !((GTEST_GCC_VER_ && GTEST_GCC_VER_ < 40000) || GTEST_OS_SYMBIAN)
|
|
1173 |
// This overload allows SetArgPointee() to accept a string literal.
|
|
1174 |
// GCC prior to the version 4.0 and Symbian C++ compiler cannot distinguish
|
|
1175 |
// this overload from the templated version and emit a compile error.
|
|
1176 |
template <size_t N>
|
|
1177 |
PolymorphicAction<
|
|
1178 |
internal::SetArgumentPointeeAction<N, const char*, false> >
|
|
1179 |
SetArgPointee(const char* p) {
|
|
1180 |
return MakePolymorphicAction(internal::SetArgumentPointeeAction<
|
|
1181 |
N, const char*, false>(p));
|
|
1182 |
}
|
|
1183 |
|
|
1184 |
template <size_t N>
|
|
1185 |
PolymorphicAction<
|
|
1186 |
internal::SetArgumentPointeeAction<N, const wchar_t*, false> >
|
|
1187 |
SetArgPointee(const wchar_t* p) {
|
|
1188 |
return MakePolymorphicAction(internal::SetArgumentPointeeAction<
|
|
1189 |
N, const wchar_t*, false>(p));
|
|
1190 |
}
|
|
1191 |
#endif
|
|
1192 |
|
|
1193 |
// The following version is DEPRECATED.
|
|
1194 |
template <size_t N, typename T>
|
|
1195 |
PolymorphicAction<
|
|
1196 |
internal::SetArgumentPointeeAction<
|
|
1197 |
N, T, internal::IsAProtocolMessage<T>::value> >
|
|
1198 |
SetArgumentPointee(const T& x) {
|
|
1199 |
return MakePolymorphicAction(internal::SetArgumentPointeeAction<
|
|
1200 |
N, T, internal::IsAProtocolMessage<T>::value>(x));
|
|
1201 |
}
|
|
1202 |
|
|
1203 |
// Creates an action that sets a pointer referent to a given value.
|
|
1204 |
template <typename T1, typename T2>
|
|
1205 |
PolymorphicAction<internal::AssignAction<T1, T2> > Assign(T1* ptr, T2 val) {
|
|
1206 |
return MakePolymorphicAction(internal::AssignAction<T1, T2>(ptr, val));
|
|
1207 |
}
|
|
1208 |
|
|
1209 |
#if !GTEST_OS_WINDOWS_MOBILE
|
|
1210 |
|
|
1211 |
// Creates an action that sets errno and returns the appropriate error.
|
|
1212 |
template <typename T>
|
|
1213 |
PolymorphicAction<internal::SetErrnoAndReturnAction<T> >
|
|
1214 |
SetErrnoAndReturn(int errval, T result) {
|
|
1215 |
return MakePolymorphicAction(
|
|
1216 |
internal::SetErrnoAndReturnAction<T>(errval, result));
|
|
1217 |
}
|
|
1218 |
|
|
1219 |
#endif // !GTEST_OS_WINDOWS_MOBILE
|
|
1220 |
|
|
1221 |
// Various overloads for InvokeWithoutArgs().
|
|
1222 |
|
|
1223 |
// Creates an action that invokes 'function_impl' with no argument.
|
|
1224 |
template <typename FunctionImpl>
|
|
1225 |
PolymorphicAction<internal::InvokeWithoutArgsAction<FunctionImpl> >
|
|
1226 |
InvokeWithoutArgs(FunctionImpl function_impl) {
|
|
1227 |
return MakePolymorphicAction(
|
|
1228 |
internal::InvokeWithoutArgsAction<FunctionImpl>(function_impl));
|
|
1229 |
}
|
|
1230 |
|
|
1231 |
// Creates an action that invokes the given method on the given object
|
|
1232 |
// with no argument.
|
|
1233 |
template <class Class, typename MethodPtr>
|
|
1234 |
PolymorphicAction<internal::InvokeMethodWithoutArgsAction<Class, MethodPtr> >
|
|
1235 |
InvokeWithoutArgs(Class* obj_ptr, MethodPtr method_ptr) {
|
|
1236 |
return MakePolymorphicAction(
|
|
1237 |
internal::InvokeMethodWithoutArgsAction<Class, MethodPtr>(
|
|
1238 |
obj_ptr, method_ptr));
|
|
1239 |
}
|
|
1240 |
|
|
1241 |
// Creates an action that performs an_action and throws away its
|
|
1242 |
// result. In other words, it changes the return type of an_action to
|
|
1243 |
// void. an_action MUST NOT return void, or the code won't compile.
|
|
1244 |
template <typename A>
|
|
1245 |
inline internal::IgnoreResultAction<A> IgnoreResult(const A& an_action) {
|
|
1246 |
return internal::IgnoreResultAction<A>(an_action);
|
|
1247 |
}
|
|
1248 |
|
|
1249 |
// Creates a reference wrapper for the given L-value. If necessary,
|
|
1250 |
// you can explicitly specify the type of the reference. For example,
|
|
1251 |
// suppose 'derived' is an object of type Derived, ByRef(derived)
|
|
1252 |
// would wrap a Derived&. If you want to wrap a const Base& instead,
|
|
1253 |
// where Base is a base class of Derived, just write:
|
|
1254 |
//
|
|
1255 |
// ByRef<const Base>(derived)
|
|
1256 |
template <typename T>
|
|
1257 |
inline internal::ReferenceWrapper<T> ByRef(T& l_value) { // NOLINT
|
|
1258 |
return internal::ReferenceWrapper<T>(l_value);
|
|
1259 |
}
|
|
1260 |
|
|
1261 |
} // namespace testing
|
|
1262 |
|
|
1263 |
#endif // GMOCK_INCLUDE_GMOCK_GMOCK_ACTIONS_H_
|