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Implements the Args<k1, ..., kn>(m) matcher.

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zhanyong.wan
2009-06-09 05:42:12 +00:00
parent 240fe5a0cf
commit 2661c6821a
8 changed files with 597 additions and 29 deletions
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323
include/gmock/gmock-generated-matchers.h
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@@ -45,6 +45,251 @@
namespace testing {
namespace internal {
// The type of the i-th (0-based) field of Tuple.
#define GMOCK_FIELD_TYPE_(Tuple, i) \
typename ::std::tr1::tuple_element<i, Tuple>::type
// TupleFields<Tuple, k0, ..., kn> is for selecting fields from a
// tuple of type Tuple. It has two members:
//
// type: a tuple type whose i-th field is the ki-th field of Tuple.
// GetSelectedFields(t): returns fields k0, ..., and kn of t as a tuple.
//
// For example, in class TupleFields<tuple<bool, char, int>, 2, 0>, we have:
//
// type is tuple<int, bool>, and
// GetSelectedFields(make_tuple(true, 'a', 42)) is (42, true).
template <class Tuple, int k0 = -1, int k1 = -1, int k2 = -1, int k3 = -1,
int k4 = -1, int k5 = -1, int k6 = -1, int k7 = -1, int k8 = -1,
int k9 = -1>
class TupleFields;
// This generic version is used when there are 10 selectors.
template <class Tuple, int k0, int k1, int k2, int k3, int k4, int k5, int k6,
int k7, int k8, int k9>
class TupleFields {
public:
typedef ::std::tr1::tuple<GMOCK_FIELD_TYPE_(Tuple, k0),
GMOCK_FIELD_TYPE_(Tuple, k1), GMOCK_FIELD_TYPE_(Tuple, k2),
GMOCK_FIELD_TYPE_(Tuple, k3), GMOCK_FIELD_TYPE_(Tuple, k4),
GMOCK_FIELD_TYPE_(Tuple, k5), GMOCK_FIELD_TYPE_(Tuple, k6),
GMOCK_FIELD_TYPE_(Tuple, k7), GMOCK_FIELD_TYPE_(Tuple, k8),
GMOCK_FIELD_TYPE_(Tuple, k9)> type;
static type GetSelectedFields(const Tuple& t) {
using ::std::tr1::get;
return type(get<k0>(t), get<k1>(t), get<k2>(t), get<k3>(t), get<k4>(t),
get<k5>(t), get<k6>(t), get<k7>(t), get<k8>(t), get<k9>(t));
}
};
// The following specialization is used for 0 ~ 9 selectors.
template <class Tuple>
class TupleFields<Tuple, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1> {
public:
typedef ::std::tr1::tuple<> type;
static type GetSelectedFields(const Tuple& t) {
using ::std::tr1::get;
return type();
}
};
template <class Tuple, int k0>
class TupleFields<Tuple, k0, -1, -1, -1, -1, -1, -1, -1, -1, -1> {
public:
typedef ::std::tr1::tuple<GMOCK_FIELD_TYPE_(Tuple, k0)> type;
static type GetSelectedFields(const Tuple& t) {
using ::std::tr1::get;
return type(get<k0>(t));
}
};
template <class Tuple, int k0, int k1>
class TupleFields<Tuple, k0, k1, -1, -1, -1, -1, -1, -1, -1, -1> {
public:
typedef ::std::tr1::tuple<GMOCK_FIELD_TYPE_(Tuple, k0),
GMOCK_FIELD_TYPE_(Tuple, k1)> type;
static type GetSelectedFields(const Tuple& t) {
using ::std::tr1::get;
return type(get<k0>(t), get<k1>(t));
}
};
template <class Tuple, int k0, int k1, int k2>
class TupleFields<Tuple, k0, k1, k2, -1, -1, -1, -1, -1, -1, -1> {
public:
typedef ::std::tr1::tuple<GMOCK_FIELD_TYPE_(Tuple, k0),
GMOCK_FIELD_TYPE_(Tuple, k1), GMOCK_FIELD_TYPE_(Tuple, k2)> type;
static type GetSelectedFields(const Tuple& t) {
using ::std::tr1::get;
return type(get<k0>(t), get<k1>(t), get<k2>(t));
}
};
template <class Tuple, int k0, int k1, int k2, int k3>
class TupleFields<Tuple, k0, k1, k2, k3, -1, -1, -1, -1, -1, -1> {
public:
typedef ::std::tr1::tuple<GMOCK_FIELD_TYPE_(Tuple, k0),
GMOCK_FIELD_TYPE_(Tuple, k1), GMOCK_FIELD_TYPE_(Tuple, k2),
GMOCK_FIELD_TYPE_(Tuple, k3)> type;
static type GetSelectedFields(const Tuple& t) {
using ::std::tr1::get;
return type(get<k0>(t), get<k1>(t), get<k2>(t), get<k3>(t));
}
};
template <class Tuple, int k0, int k1, int k2, int k3, int k4>
class TupleFields<Tuple, k0, k1, k2, k3, k4, -1, -1, -1, -1, -1> {
public:
typedef ::std::tr1::tuple<GMOCK_FIELD_TYPE_(Tuple, k0),
GMOCK_FIELD_TYPE_(Tuple, k1), GMOCK_FIELD_TYPE_(Tuple, k2),
GMOCK_FIELD_TYPE_(Tuple, k3), GMOCK_FIELD_TYPE_(Tuple, k4)> type;
static type GetSelectedFields(const Tuple& t) {
using ::std::tr1::get;
return type(get<k0>(t), get<k1>(t), get<k2>(t), get<k3>(t), get<k4>(t));
}
};
template <class Tuple, int k0, int k1, int k2, int k3, int k4, int k5>
class TupleFields<Tuple, k0, k1, k2, k3, k4, k5, -1, -1, -1, -1> {
public:
typedef ::std::tr1::tuple<GMOCK_FIELD_TYPE_(Tuple, k0),
GMOCK_FIELD_TYPE_(Tuple, k1), GMOCK_FIELD_TYPE_(Tuple, k2),
GMOCK_FIELD_TYPE_(Tuple, k3), GMOCK_FIELD_TYPE_(Tuple, k4),
GMOCK_FIELD_TYPE_(Tuple, k5)> type;
static type GetSelectedFields(const Tuple& t) {
using ::std::tr1::get;
return type(get<k0>(t), get<k1>(t), get<k2>(t), get<k3>(t), get<k4>(t),
get<k5>(t));
}
};
template <class Tuple, int k0, int k1, int k2, int k3, int k4, int k5, int k6>
class TupleFields<Tuple, k0, k1, k2, k3, k4, k5, k6, -1, -1, -1> {
public:
typedef ::std::tr1::tuple<GMOCK_FIELD_TYPE_(Tuple, k0),
GMOCK_FIELD_TYPE_(Tuple, k1), GMOCK_FIELD_TYPE_(Tuple, k2),
GMOCK_FIELD_TYPE_(Tuple, k3), GMOCK_FIELD_TYPE_(Tuple, k4),
GMOCK_FIELD_TYPE_(Tuple, k5), GMOCK_FIELD_TYPE_(Tuple, k6)> type;
static type GetSelectedFields(const Tuple& t) {
using ::std::tr1::get;
return type(get<k0>(t), get<k1>(t), get<k2>(t), get<k3>(t), get<k4>(t),
get<k5>(t), get<k6>(t));
}
};
template <class Tuple, int k0, int k1, int k2, int k3, int k4, int k5, int k6,
int k7>
class TupleFields<Tuple, k0, k1, k2, k3, k4, k5, k6, k7, -1, -1> {
public:
typedef ::std::tr1::tuple<GMOCK_FIELD_TYPE_(Tuple, k0),
GMOCK_FIELD_TYPE_(Tuple, k1), GMOCK_FIELD_TYPE_(Tuple, k2),
GMOCK_FIELD_TYPE_(Tuple, k3), GMOCK_FIELD_TYPE_(Tuple, k4),
GMOCK_FIELD_TYPE_(Tuple, k5), GMOCK_FIELD_TYPE_(Tuple, k6),
GMOCK_FIELD_TYPE_(Tuple, k7)> type;
static type GetSelectedFields(const Tuple& t) {
using ::std::tr1::get;
return type(get<k0>(t), get<k1>(t), get<k2>(t), get<k3>(t), get<k4>(t),
get<k5>(t), get<k6>(t), get<k7>(t));
}
};
template <class Tuple, int k0, int k1, int k2, int k3, int k4, int k5, int k6,
int k7, int k8>
class TupleFields<Tuple, k0, k1, k2, k3, k4, k5, k6, k7, k8, -1> {
public:
typedef ::std::tr1::tuple<GMOCK_FIELD_TYPE_(Tuple, k0),
GMOCK_FIELD_TYPE_(Tuple, k1), GMOCK_FIELD_TYPE_(Tuple, k2),
GMOCK_FIELD_TYPE_(Tuple, k3), GMOCK_FIELD_TYPE_(Tuple, k4),
GMOCK_FIELD_TYPE_(Tuple, k5), GMOCK_FIELD_TYPE_(Tuple, k6),
GMOCK_FIELD_TYPE_(Tuple, k7), GMOCK_FIELD_TYPE_(Tuple, k8)> type;
static type GetSelectedFields(const Tuple& t) {
using ::std::tr1::get;
return type(get<k0>(t), get<k1>(t), get<k2>(t), get<k3>(t), get<k4>(t),
get<k5>(t), get<k6>(t), get<k7>(t), get<k8>(t));
}
};
#undef GMOCK_FIELD_TYPE_
// Implements the Args() matcher.
template <class ArgsTuple, int k0 = -1, int k1 = -1, int k2 = -1, int k3 = -1,
int k4 = -1, int k5 = -1, int k6 = -1, int k7 = -1, int k8 = -1,
int k9 = -1>
class ArgsMatcherImpl : public MatcherInterface<ArgsTuple> {
public:
// ArgsTuple may have top-level const or reference modifiers.
typedef GMOCK_REMOVE_CONST_(GMOCK_REMOVE_REFERENCE_(ArgsTuple)) RawArgsTuple;
typedef typename internal::TupleFields<RawArgsTuple, k0, k1, k2, k3, k4, k5,
k6, k7, k8, k9>::type SelectedArgs;
typedef Matcher<const SelectedArgs&> MonomorphicInnerMatcher;
template <typename InnerMatcher>
explicit ArgsMatcherImpl(const InnerMatcher& inner_matcher)
: inner_matcher_(SafeMatcherCast<const SelectedArgs&>(inner_matcher)) {}
virtual bool Matches(ArgsTuple args) const {
return inner_matcher_.Matches(GetSelectedArgs(args));
}
virtual void DescribeTo(::std::ostream* os) const {
PrintIndices(os);
inner_matcher_.DescribeTo(os);
}
virtual void DescribeNegationTo(::std::ostream* os) const {
PrintIndices(os);
inner_matcher_.DescribeNegationTo(os);
}
virtual void ExplainMatchResultTo(ArgsTuple args,
::std::ostream* os) const {
inner_matcher_.ExplainMatchResultTo(GetSelectedArgs(args), os);
}
private:
static SelectedArgs GetSelectedArgs(ArgsTuple args) {
return TupleFields<RawArgsTuple, k0, k1, k2, k3, k4, k5, k6, k7, k8,
k9>::GetSelectedFields(args);
}
// Prints the indices of the selected fields.
static void PrintIndices(::std::ostream* os) {
*os << "are a tuple whose fields (";
const int indices[10] = { k0, k1, k2, k3, k4, k5, k6, k7, k8, k9 };
for (int i = 0; i < 10; i++) {
if (indices[i] < 0)
break;
if (i >= 1)
*os << ", ";
*os << "#" << indices[i];
}
*os << ") ";
}
const MonomorphicInnerMatcher inner_matcher_;
};
template <class InnerMatcher, int k0 = -1, int k1 = -1, int k2 = -1,
int k3 = -1, int k4 = -1, int k5 = -1, int k6 = -1, int k7 = -1,
int k8 = -1, int k9 = -1>
class ArgsMatcher {
public:
explicit ArgsMatcher(const InnerMatcher& inner_matcher)
: inner_matcher_(inner_matcher) {}
template <typename ArgsTuple>
operator Matcher<ArgsTuple>() const {
return MakeMatcher(new ArgsMatcherImpl<ArgsTuple, k0, k1, k2, k3, k4, k5,
k6, k7, k8, k9>(inner_matcher_));
}
const InnerMatcher inner_matcher_;
};
// Implements ElementsAre() and ElementsAreArray().
template <typename Container>
class ElementsAreMatcherImpl : public MatcherInterface<Container> {
@@ -567,6 +812,84 @@ class ElementsAreArrayMatcher {
} // namespace internal
// Args<N1, N2, ..., Nk>(a_matcher) matches a tuple if the selected
// fields of it matches a_matcher. C++ doesn't support default
// arguments for function templates, so we have to overload it.
template <typename InnerMatcher>
inline internal::ArgsMatcher<InnerMatcher>
Args(const InnerMatcher& matcher) {
return internal::ArgsMatcher<InnerMatcher>(matcher);
}
template <int k1, typename InnerMatcher>
inline internal::ArgsMatcher<InnerMatcher, k1>
Args(const InnerMatcher& matcher) {
return internal::ArgsMatcher<InnerMatcher, k1>(matcher);
}
template <int k1, int k2, typename InnerMatcher>
inline internal::ArgsMatcher<InnerMatcher, k1, k2>
Args(const InnerMatcher& matcher) {
return internal::ArgsMatcher<InnerMatcher, k1, k2>(matcher);
}
template <int k1, int k2, int k3, typename InnerMatcher>
inline internal::ArgsMatcher<InnerMatcher, k1, k2, k3>
Args(const InnerMatcher& matcher) {
return internal::ArgsMatcher<InnerMatcher, k1, k2, k3>(matcher);
}
template <int k1, int k2, int k3, int k4, typename InnerMatcher>
inline internal::ArgsMatcher<InnerMatcher, k1, k2, k3, k4>
Args(const InnerMatcher& matcher) {
return internal::ArgsMatcher<InnerMatcher, k1, k2, k3, k4>(matcher);
}
template <int k1, int k2, int k3, int k4, int k5, typename InnerMatcher>
inline internal::ArgsMatcher<InnerMatcher, k1, k2, k3, k4, k5>
Args(const InnerMatcher& matcher) {
return internal::ArgsMatcher<InnerMatcher, k1, k2, k3, k4, k5>(matcher);
}
template <int k1, int k2, int k3, int k4, int k5, int k6, typename InnerMatcher>
inline internal::ArgsMatcher<InnerMatcher, k1, k2, k3, k4, k5, k6>
Args(const InnerMatcher& matcher) {
return internal::ArgsMatcher<InnerMatcher, k1, k2, k3, k4, k5, k6>(matcher);
}
template <int k1, int k2, int k3, int k4, int k5, int k6, int k7,
typename InnerMatcher>
inline internal::ArgsMatcher<InnerMatcher, k1, k2, k3, k4, k5, k6, k7>
Args(const InnerMatcher& matcher) {
return internal::ArgsMatcher<InnerMatcher, k1, k2, k3, k4, k5, k6,
k7>(matcher);
}
template <int k1, int k2, int k3, int k4, int k5, int k6, int k7, int k8,
typename InnerMatcher>
inline internal::ArgsMatcher<InnerMatcher, k1, k2, k3, k4, k5, k6, k7, k8>
Args(const InnerMatcher& matcher) {
return internal::ArgsMatcher<InnerMatcher, k1, k2, k3, k4, k5, k6, k7,
k8>(matcher);
}
template <int k1, int k2, int k3, int k4, int k5, int k6, int k7, int k8,
int k9, typename InnerMatcher>
inline internal::ArgsMatcher<InnerMatcher, k1, k2, k3, k4, k5, k6, k7, k8, k9>
Args(const InnerMatcher& matcher) {
return internal::ArgsMatcher<InnerMatcher, k1, k2, k3, k4, k5, k6, k7, k8,
k9>(matcher);
}
template <int k1, int k2, int k3, int k4, int k5, int k6, int k7, int k8,
int k9, int k10, typename InnerMatcher>
inline internal::ArgsMatcher<InnerMatcher, k1, k2, k3, k4, k5, k6, k7, k8, k9,
k10>
Args(const InnerMatcher& matcher) {
return internal::ArgsMatcher<InnerMatcher, k1, k2, k3, k4, k5, k6, k7, k8,
k9, k10>(matcher);
}
// ElementsAre(e0, e1, ..., e_n) matches an STL-style container with
// (n + 1) elements, where the i-th element in the container must
// match the i-th argument in the list. Each argument of