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Replace uses of ACTION_TEMPLATE and ACTION_P with manually written functors.
The latter provide better error diagnostics.
This fixes https://github.com/google/googletest/issues/2729.

PiperOrigin-RevId: 328573022
This commit is contained in:
Abseil Team 2020-08-26 14:36:31 -04:00 committed by Andy Getz
parent 1e315c5b1a
commit df6b75949b
4 changed files with 162 additions and 183 deletions
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176
googlemock/include/gmock/gmock-actions.h
View File

@ -1063,6 +1063,105 @@ struct DoAllAction {
} }
}; };
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;
};
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...));
}
};
template <size_t k, typename Ptr>
struct SaveArgAction {
Ptr pointer;
template <typename... Args>
void operator()(const Args&... args) const {
*pointer = std::get<k>(std::tie(args...));
}
};
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;
}
};
template <size_t k, typename I1, typename I2>
struct SetArrayArgumentAction {
I1 first;
I2 last;
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;
}
}
};
template <size_t k>
struct DeleteArgAction {
template <typename... Args>
void operator()(const Args&... args) const {
delete std::get<k>(std::tie(args...));
}
};
template <typename Ptr>
struct ReturnPointeeAction {
Ptr pointer;
template <typename... Args>
auto operator()(const Args&...) const -> decltype(*pointer) {
return *pointer;
}
};
#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 } // namespace internal
// An Unused object can be implicitly constructed from ANY value. // An Unused object can be implicitly constructed from ANY value.
@ -1292,22 +1391,6 @@ inline ::std::reference_wrapper<T> ByRef(T& l_value) { // NOLINT
return ::std::reference_wrapper<T>(l_value); return ::std::reference_wrapper<T>(l_value);
} }
namespace internal {
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;
};
} // namespace internal
// The ReturnNew<T>(a1, a2, ..., a_k) action returns a pointer to a new // 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 // instance of type T, constructed on the heap with constructor arguments
// a1, a2, ..., and a_k. The caller assumes ownership of the returned value. // a1, a2, ..., and a_k. The caller assumes ownership of the returned value.
@ -1317,6 +1400,67 @@ internal::ReturnNewAction<T, typename std::decay<Params>::type...> ReturnNew(
return {std::forward_as_tuple(std::forward<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>
internal::ThrowAction<typename std::decay<T>::type> Throw(T&& exception) {
return {std::forward<T>(exception)};
}
#endif // GTEST_HAS_EXCEPTIONS
namespace internal { namespace internal {
// A macro from the ACTION* family (defined later in gmock-generated-actions.h) // A macro from the ACTION* family (defined later in gmock-generated-actions.h)

162
googlemock/include/gmock/gmock-more-actions.h
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@ -1,162 +0,0 @@
// Copyright 2007, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// 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.
// Google Mock - a framework for writing C++ mock classes.
//
// This file implements some actions that depend on gmock-generated-actions.h.
// GOOGLETEST_CM0002 DO NOT DELETE
#ifndef GMOCK_INCLUDE_GMOCK_GMOCK_MORE_ACTIONS_H_
#define GMOCK_INCLUDE_GMOCK_GMOCK_MORE_ACTIONS_H_
#include <algorithm>
#include <type_traits>
#include "gmock/gmock-generated-actions.h"
namespace testing {
namespace internal {
// An internal replacement for std::copy which mimics its behavior. This is
// necessary because Visual Studio deprecates ::std::copy, issuing warning 4996.
// However Visual Studio 2010 and later do not honor #pragmas which disable that
// warning.
template<typename InputIterator, typename OutputIterator>
inline OutputIterator CopyElements(InputIterator first,
InputIterator last,
OutputIterator output) {
for (; first != last; ++first, ++output) {
*output = *first;
}
return output;
}
} // namespace internal
// Various overloads for Invoke().
// The ACTION*() macros trigger warning C4100 (unreferenced formal
// parameter) in MSVC with -W4. Unfortunately they cannot be fixed in
// the macro definition, as the warnings are generated when the macro
// is expanded and macro expansion cannot contain #pragma. Therefore
// we suppress them here.
#ifdef _MSC_VER
# pragma warning(push)
# pragma warning(disable:4100)
#endif
// Action ReturnArg<k>() returns the k-th argument of the mock function.
ACTION_TEMPLATE(ReturnArg,
HAS_1_TEMPLATE_PARAMS(int, k),
AND_0_VALUE_PARAMS()) {
return ::std::get<k>(args);
}
// Action SaveArg<k>(pointer) saves the k-th (0-based) argument of the
// mock function to *pointer.
ACTION_TEMPLATE(SaveArg,
HAS_1_TEMPLATE_PARAMS(int, k),
AND_1_VALUE_PARAMS(pointer)) {
*pointer = ::std::get<k>(args);
}
// Action SaveArgPointee<k>(pointer) saves the value pointed to
// by the k-th (0-based) argument of the mock function to *pointer.
ACTION_TEMPLATE(SaveArgPointee,
HAS_1_TEMPLATE_PARAMS(int, k),
AND_1_VALUE_PARAMS(pointer)) {
*pointer = *::std::get<k>(args);
}
// Action SetArgReferee<k>(value) assigns 'value' to the variable
// referenced by the k-th (0-based) argument of the mock function.
ACTION_TEMPLATE(SetArgReferee,
HAS_1_TEMPLATE_PARAMS(int, k),
AND_1_VALUE_PARAMS(value)) {
typedef typename ::std::tuple_element<k, args_type>::type argk_type;
// Ensures that argument #k is a reference. If you get a compiler
// error on the next line, you are using SetArgReferee<k>(value) in
// a mock function whose k-th (0-based) argument is not a reference.
GTEST_COMPILE_ASSERT_(std::is_reference<argk_type>::value,
SetArgReferee_must_be_used_with_a_reference_argument);
::std::get<k>(args) = 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.
ACTION_TEMPLATE(SetArrayArgument,
HAS_1_TEMPLATE_PARAMS(int, k),
AND_2_VALUE_PARAMS(first, last)) {
// Visual Studio deprecates ::std::copy, so we use our own copy in that case.
#ifdef _MSC_VER
internal::CopyElements(first, last, ::std::get<k>(args));
#else
::std::copy(first, last, ::std::get<k>(args));
#endif
}
// Action DeleteArg<k>() deletes the k-th (0-based) argument of the mock
// function.
ACTION_TEMPLATE(DeleteArg,
HAS_1_TEMPLATE_PARAMS(int, k),
AND_0_VALUE_PARAMS()) {
delete ::std::get<k>(args);
}
// This action returns the value pointed to by 'pointer'.
ACTION_P(ReturnPointee, 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
// Suppresses the 'unreachable code' warning that VC generates in opt modes.
# ifdef _MSC_VER
# pragma warning(push) // Saves the current warning state.
# pragma warning(disable:4702) // Temporarily disables warning 4702.
# endif
ACTION_P(Throw, exception) { throw exception; }
# ifdef _MSC_VER
# pragma warning(pop) // Restores the warning state.
# endif
#endif // GTEST_HAS_EXCEPTIONS
#ifdef _MSC_VER
# pragma warning(pop)
#endif
} // namespace testing
#endif // GMOCK_INCLUDE_GMOCK_GMOCK_MORE_ACTIONS_H_

1
googlemock/include/gmock/gmock.h
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@ -61,7 +61,6 @@
#include "gmock/gmock-function-mocker.h" #include "gmock/gmock-function-mocker.h"
#include "gmock/gmock-generated-actions.h" #include "gmock/gmock-generated-actions.h"
#include "gmock/gmock-matchers.h" #include "gmock/gmock-matchers.h"
#include "gmock/gmock-more-actions.h"
#include "gmock/gmock-more-matchers.h" #include "gmock/gmock-more-matchers.h"
#include "gmock/gmock-nice-strict.h" #include "gmock/gmock-nice-strict.h"
#include "gmock/internal/gmock-internal-utils.h" #include "gmock/internal/gmock-internal-utils.h"

6
googlemock/test/gmock-more-actions_test.cc
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@ -27,18 +27,16 @@
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// Google Mock - a framework for writing C++ mock classes. // Google Mock - a framework for writing C++ mock classes.
// //
// This file tests the built-in actions in gmock-more-actions.h. // This file tests the built-in actions in gmock-actions.h.
#include "gmock/gmock-more-actions.h"
#include <functional> #include <functional>
#include <memory> #include <memory>
#include <sstream> #include <sstream>
#include <string> #include <string>
#include "gmock/gmock-actions.h"
#include "gmock/gmock.h" #include "gmock/gmock.h"
#include "gtest/gtest-spi.h" #include "gtest/gtest-spi.h"
#include "gtest/gtest.h" #include "gtest/gtest.h"