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Fix use of reserved names.
Minimize code duplication needed for explict-vs-nonexplicit constructor.

PiperOrigin-RevId: 292555014
This commit is contained in:
Abseil Team 2020-01-31 12:03:06 -05:00 committed by Andy Getz
parent 7bc671b8e0
commit 572e261b60
4 changed files with 48 additions and 54 deletions
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44
googlemock/include/gmock/gmock-generated-matchers.h
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@ -50,10 +50,8 @@
#define GMOCK_INTERNAL_MATCHER(name, description)\
class name##Matcher : public \
::testing::internal::MatcherBaseImpl<name##Matcher> {\
using __internal_base_type = \
::testing::internal::MatcherBaseImpl<name##Matcher>;\
public:\
using __internal_base_type::__internal_base_type;\
using name##Matcher::MatcherBaseImpl::MatcherBaseImpl;\
template <typename arg_type>\
class gmock_Impl : public ::testing::MatcherInterface<\
GTEST_REFERENCE_TO_CONST_(arg_type)> {\
@ -95,10 +93,8 @@
template <typename p0##_type>\
class name##MatcherP : public \
::testing::internal::MatcherBaseImpl<name##MatcherP<p0##_type>> {\
using __internal_base_type = \
::testing::internal::MatcherBaseImpl<name##MatcherP>;\
public:\
using __internal_base_type::__internal_base_type;\
using name##MatcherP::MatcherBaseImpl::MatcherBaseImpl;\
template <typename arg_type>\
class gmock_Impl : public ::testing::MatcherInterface<\
GTEST_REFERENCE_TO_CONST_(arg_type)> {\
@ -144,10 +140,8 @@
class name##MatcherP2 : public \
::testing::internal::MatcherBaseImpl<name##MatcherP2<p0##_type, \
p1##_type>> {\
using __internal_base_type = \
::testing::internal::MatcherBaseImpl<name##MatcherP2>;\
public:\
using __internal_base_type::__internal_base_type;\
using name##MatcherP2::MatcherBaseImpl::MatcherBaseImpl;\
template <typename arg_type>\
class gmock_Impl : public ::testing::MatcherInterface<\
GTEST_REFERENCE_TO_CONST_(arg_type)> {\
@ -196,10 +190,8 @@
class name##MatcherP3 : public \
::testing::internal::MatcherBaseImpl<name##MatcherP3<p0##_type, \
p1##_type, p2##_type>> {\
using __internal_base_type = \
::testing::internal::MatcherBaseImpl<name##MatcherP3>;\
public:\
using __internal_base_type::__internal_base_type;\
using name##MatcherP3::MatcherBaseImpl::MatcherBaseImpl;\
template <typename arg_type>\
class gmock_Impl : public ::testing::MatcherInterface<\
GTEST_REFERENCE_TO_CONST_(arg_type)> {\
@ -251,10 +243,8 @@
class name##MatcherP4 : public \
::testing::internal::MatcherBaseImpl<name##MatcherP4<p0##_type, \
p1##_type, p2##_type, p3##_type>> {\
using __internal_base_type = \
::testing::internal::MatcherBaseImpl<name##MatcherP4>;\
public:\
using __internal_base_type::__internal_base_type;\
using name##MatcherP4::MatcherBaseImpl::MatcherBaseImpl;\
template <typename arg_type>\
class gmock_Impl : public ::testing::MatcherInterface<\
GTEST_REFERENCE_TO_CONST_(arg_type)> {\
@ -313,10 +303,8 @@
class name##MatcherP5 : public \
::testing::internal::MatcherBaseImpl<name##MatcherP5<p0##_type, \
p1##_type, p2##_type, p3##_type, p4##_type>> {\
using __internal_base_type = \
::testing::internal::MatcherBaseImpl<name##MatcherP5>;\
public:\
using __internal_base_type::__internal_base_type;\
using name##MatcherP5::MatcherBaseImpl::MatcherBaseImpl;\
template <typename arg_type>\
class gmock_Impl : public ::testing::MatcherInterface<\
GTEST_REFERENCE_TO_CONST_(arg_type)> {\
@ -377,10 +365,8 @@
class name##MatcherP6 : public \
::testing::internal::MatcherBaseImpl<name##MatcherP6<p0##_type, \
p1##_type, p2##_type, p3##_type, p4##_type, p5##_type>> {\
using __internal_base_type = \
::testing::internal::MatcherBaseImpl<name##MatcherP6>;\
public:\
using __internal_base_type::__internal_base_type;\
using name##MatcherP6::MatcherBaseImpl::MatcherBaseImpl;\
template <typename arg_type>\
class gmock_Impl : public ::testing::MatcherInterface<\
GTEST_REFERENCE_TO_CONST_(arg_type)> {\
@ -444,10 +430,8 @@
class name##MatcherP7 : public \
::testing::internal::MatcherBaseImpl<name##MatcherP7<p0##_type, \
p1##_type, p2##_type, p3##_type, p4##_type, p5##_type, p6##_type>> {\
using __internal_base_type = \
::testing::internal::MatcherBaseImpl<name##MatcherP7>;\
public:\
using __internal_base_type::__internal_base_type;\
using name##MatcherP7::MatcherBaseImpl::MatcherBaseImpl;\
template <typename arg_type>\
class gmock_Impl : public ::testing::MatcherInterface<\
GTEST_REFERENCE_TO_CONST_(arg_type)> {\
@ -519,10 +503,8 @@
::testing::internal::MatcherBaseImpl<name##MatcherP8<p0##_type, \
p1##_type, p2##_type, p3##_type, p4##_type, p5##_type, p6##_type, \
p7##_type>> {\
using __internal_base_type = \
::testing::internal::MatcherBaseImpl<name##MatcherP8>;\
public:\
using __internal_base_type::__internal_base_type;\
using name##MatcherP8::MatcherBaseImpl::MatcherBaseImpl;\
template <typename arg_type>\
class gmock_Impl : public ::testing::MatcherInterface<\
GTEST_REFERENCE_TO_CONST_(arg_type)> {\
@ -597,10 +579,8 @@
::testing::internal::MatcherBaseImpl<name##MatcherP9<p0##_type, \
p1##_type, p2##_type, p3##_type, p4##_type, p5##_type, p6##_type, \
p7##_type, p8##_type>> {\
using __internal_base_type = \
::testing::internal::MatcherBaseImpl<name##MatcherP9>;\
public:\
using __internal_base_type::__internal_base_type;\
using name##MatcherP9::MatcherBaseImpl::MatcherBaseImpl;\
template <typename arg_type>\
class gmock_Impl : public ::testing::MatcherInterface<\
GTEST_REFERENCE_TO_CONST_(arg_type)> {\
@ -679,10 +659,8 @@
::testing::internal::MatcherBaseImpl<name##MatcherP10<p0##_type, \
p1##_type, p2##_type, p3##_type, p4##_type, p5##_type, p6##_type, \
p7##_type, p8##_type, p9##_type>> {\
using __internal_base_type = \
::testing::internal::MatcherBaseImpl<name##MatcherP10>;\
public:\
using __internal_base_type::__internal_base_type;\
using name##MatcherP10::MatcherBaseImpl::MatcherBaseImpl;\
template <typename arg_type>\
class gmock_Impl : public ::testing::MatcherInterface<\
GTEST_REFERENCE_TO_CONST_(arg_type)> {\

3
googlemock/include/gmock/gmock-generated-matchers.h.pump
View File

@ -80,9 +80,8 @@ $var param_field_decls2 = [[$for j
#define $macro_name(name, description$for j [[, p$j]])\$template
class $class_name : public ::testing::internal::MatcherBaseImpl<$class_name$param_types> {\
using __internal_base_type = ::testing::internal::MatcherBaseImpl<$class_name>;\
public:\
using __internal_base_type::__internal_base_type;\
using $class_name::MatcherBaseImpl::MatcherBaseImpl;\
template <typename arg_type>\
class gmock_Impl : public ::testing::MatcherInterface<\
GTEST_REFERENCE_TO_CONST_(arg_type)> {\

28
googlemock/include/gmock/gmock-matchers.h
View File

@ -462,28 +462,18 @@ class MatcherBaseImpl {
}
};
// Template specialization for Matcher with 1 parameter.
template <template <typename...> class Derived, typename T>
class MatcherBaseImpl<Derived<T>> {
public:
explicit MatcherBaseImpl(T param) : param_(std::move(param)) {}
template <typename F>
operator ::testing::Matcher<F>() const { // NOLINT(runtime/explicit)
return ::testing::Matcher<F>(
new typename Derived<T>::template gmock_Impl<F>(param_));
}
private:
const T param_;
};
// Template specialization for Matcher with multiple parameters.
// Template specialization for Matcher with parameters.
template <template <typename...> class Derived, typename... Ts>
class MatcherBaseImpl<Derived<Ts...>> {
public:
MatcherBaseImpl(Ts... params)
: params_(std::move(params)...) {} // NOLINT(runtime/explicit)
// Mark the constructor explicit for single argument T to avoid implicit
// conversions.
template <typename E = std::enable_if<sizeof...(Ts) == 1>,
typename E::type* = nullptr>
explicit MatcherBaseImpl(Ts... params) : params_(std::move(params)...) {}
template <typename E = std::enable_if<sizeof...(Ts) != 1>,
typename = typename E::type>
MatcherBaseImpl(Ts... params) : params_(std::move(params)...) {} // NOLINT
template <typename F>
operator ::testing::Matcher<F>() const { // NOLINT(runtime/explicit)

27
googlemock/test/gmock-matchers_test.cc
View File

@ -2875,6 +2875,33 @@ TEST(ExplainMatchResultTest, WorksWithMonomorphicMatcher) {
EXPECT_EQ("", listener2.str());
}
MATCHER(ConstructNoArg, "") { return true; }
MATCHER_P(Construct1Arg, arg1, "") { return true; }
MATCHER_P2(Construct2Args, arg1, arg2, "") { return true; }
TEST(MatcherConstruct, ExplicitVsImplicit) {
{
// No arg constructor can be constructed with empty brace.
ConstructNoArgMatcher m = {};
(void)m;
// And with no args
ConstructNoArgMatcher m2;
(void)m2;
}
{
// The one arg constructor has an explicit constructor.
// This is to prevent the implicit conversion.
using M = Construct1ArgMatcherP<int>;
EXPECT_TRUE((std::is_constructible<M, int>::value));
EXPECT_FALSE((std::is_convertible<int, M>::value));
}
{
// Multiple arg matchers can be constructed with an implicit construction.
Construct2ArgsMatcherP2<int, double> m = {1, 2.2};
(void)m;
}
}
MATCHER_P(Really, inner_matcher, "") {
return ExplainMatchResult(inner_matcher, arg, result_listener);
}