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Googletest export
Replace pump'd Args() matcher with variadic templates. PiperOrigin-RevId: 223794430
This commit is contained in:
Abseil Team
committed by
Gennadiy Civil
Gennadiy Civil
parent
8fbf9d16a6
commit
a42cdf2abd
@@ -47,343 +47,6 @@
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#include <vector>
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#include "gmock/gmock-matchers.h"
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namespace testing {
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namespace internal {
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// The type of the i-th (0-based) field of Tuple.
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#define GMOCK_FIELD_TYPE_(Tuple, i) \
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typename ::std::tuple_element<i, Tuple>::type
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// TupleFields<Tuple, k0, ..., kn> is for selecting fields from a
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// tuple of type Tuple. It has two members:
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//
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// type: a tuple type whose i-th field is the ki-th field of Tuple.
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// GetSelectedFields(t): returns fields k0, ..., and kn of t as a tuple.
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//
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// For example, in class TupleFields<std::tuple<bool, char, int>, 2, 0>,
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// we have:
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//
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// type is std::tuple<int, bool>, and
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// GetSelectedFields(std::make_tuple(true, 'a', 42)) is (42, true).
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template <class Tuple, int k0 = -1, int k1 = -1, int k2 = -1, int k3 = -1,
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int k4 = -1, int k5 = -1, int k6 = -1, int k7 = -1, int k8 = -1,
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int k9 = -1>
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class TupleFields;
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// This generic version is used when there are 10 selectors.
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template <class Tuple, int k0, int k1, int k2, int k3, int k4, int k5, int k6,
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int k7, int k8, int k9>
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class TupleFields {
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public:
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typedef ::std::tuple<GMOCK_FIELD_TYPE_(Tuple, k0), GMOCK_FIELD_TYPE_(Tuple,
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k1), GMOCK_FIELD_TYPE_(Tuple, k2), GMOCK_FIELD_TYPE_(Tuple, k3),
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GMOCK_FIELD_TYPE_(Tuple, k4), GMOCK_FIELD_TYPE_(Tuple, k5),
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GMOCK_FIELD_TYPE_(Tuple, k6), GMOCK_FIELD_TYPE_(Tuple, k7),
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GMOCK_FIELD_TYPE_(Tuple, k8), GMOCK_FIELD_TYPE_(Tuple, k9)> type;
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static type GetSelectedFields(const Tuple& t) {
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return type(std::get<k0>(t), std::get<k1>(t), std::get<k2>(t),
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std::get<k3>(t), std::get<k4>(t), std::get<k5>(t), std::get<k6>(t),
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std::get<k7>(t), std::get<k8>(t), std::get<k9>(t));
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}
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};
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// The following specialization is used for 0 ~ 9 selectors.
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template <class Tuple>
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class TupleFields<Tuple, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1> {
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public:
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typedef ::std::tuple<> type;
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static type GetSelectedFields(const Tuple& /* t */) {
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return type();
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}
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};
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template <class Tuple, int k0>
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class TupleFields<Tuple, k0, -1, -1, -1, -1, -1, -1, -1, -1, -1> {
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public:
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typedef ::std::tuple<GMOCK_FIELD_TYPE_(Tuple, k0)> type;
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static type GetSelectedFields(const Tuple& t) {
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return type(std::get<k0>(t));
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}
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};
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template <class Tuple, int k0, int k1>
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class TupleFields<Tuple, k0, k1, -1, -1, -1, -1, -1, -1, -1, -1> {
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public:
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typedef ::std::tuple<GMOCK_FIELD_TYPE_(Tuple, k0), GMOCK_FIELD_TYPE_(Tuple,
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k1)> type;
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static type GetSelectedFields(const Tuple& t) {
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return type(std::get<k0>(t), std::get<k1>(t));
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}
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};
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template <class Tuple, int k0, int k1, int k2>
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class TupleFields<Tuple, k0, k1, k2, -1, -1, -1, -1, -1, -1, -1> {
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public:
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typedef ::std::tuple<GMOCK_FIELD_TYPE_(Tuple, k0), GMOCK_FIELD_TYPE_(Tuple,
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k1), GMOCK_FIELD_TYPE_(Tuple, k2)> type;
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static type GetSelectedFields(const Tuple& t) {
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return type(std::get<k0>(t), std::get<k1>(t), std::get<k2>(t));
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}
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};
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template <class Tuple, int k0, int k1, int k2, int k3>
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class TupleFields<Tuple, k0, k1, k2, k3, -1, -1, -1, -1, -1, -1> {
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public:
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typedef ::std::tuple<GMOCK_FIELD_TYPE_(Tuple, k0), GMOCK_FIELD_TYPE_(Tuple,
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k1), GMOCK_FIELD_TYPE_(Tuple, k2), GMOCK_FIELD_TYPE_(Tuple, k3)> type;
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static type GetSelectedFields(const Tuple& t) {
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return type(std::get<k0>(t), std::get<k1>(t), std::get<k2>(t),
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std::get<k3>(t));
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}
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};
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template <class Tuple, int k0, int k1, int k2, int k3, int k4>
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class TupleFields<Tuple, k0, k1, k2, k3, k4, -1, -1, -1, -1, -1> {
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public:
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typedef ::std::tuple<GMOCK_FIELD_TYPE_(Tuple, k0), GMOCK_FIELD_TYPE_(Tuple,
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k1), GMOCK_FIELD_TYPE_(Tuple, k2), GMOCK_FIELD_TYPE_(Tuple, k3),
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GMOCK_FIELD_TYPE_(Tuple, k4)> type;
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static type GetSelectedFields(const Tuple& t) {
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return type(std::get<k0>(t), std::get<k1>(t), std::get<k2>(t),
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std::get<k3>(t), std::get<k4>(t));
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}
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};
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template <class Tuple, int k0, int k1, int k2, int k3, int k4, int k5>
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class TupleFields<Tuple, k0, k1, k2, k3, k4, k5, -1, -1, -1, -1> {
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public:
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typedef ::std::tuple<GMOCK_FIELD_TYPE_(Tuple, k0), GMOCK_FIELD_TYPE_(Tuple,
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k1), GMOCK_FIELD_TYPE_(Tuple, k2), GMOCK_FIELD_TYPE_(Tuple, k3),
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GMOCK_FIELD_TYPE_(Tuple, k4), GMOCK_FIELD_TYPE_(Tuple, k5)> type;
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static type GetSelectedFields(const Tuple& t) {
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return type(std::get<k0>(t), std::get<k1>(t), std::get<k2>(t),
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std::get<k3>(t), std::get<k4>(t), std::get<k5>(t));
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}
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};
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template <class Tuple, int k0, int k1, int k2, int k3, int k4, int k5, int k6>
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class TupleFields<Tuple, k0, k1, k2, k3, k4, k5, k6, -1, -1, -1> {
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public:
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typedef ::std::tuple<GMOCK_FIELD_TYPE_(Tuple, k0), GMOCK_FIELD_TYPE_(Tuple,
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k1), GMOCK_FIELD_TYPE_(Tuple, k2), GMOCK_FIELD_TYPE_(Tuple, k3),
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GMOCK_FIELD_TYPE_(Tuple, k4), GMOCK_FIELD_TYPE_(Tuple, k5),
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GMOCK_FIELD_TYPE_(Tuple, k6)> type;
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static type GetSelectedFields(const Tuple& t) {
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return type(std::get<k0>(t), std::get<k1>(t), std::get<k2>(t),
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std::get<k3>(t), std::get<k4>(t), std::get<k5>(t), std::get<k6>(t));
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}
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};
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template <class Tuple, int k0, int k1, int k2, int k3, int k4, int k5, int k6,
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int k7>
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class TupleFields<Tuple, k0, k1, k2, k3, k4, k5, k6, k7, -1, -1> {
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public:
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typedef ::std::tuple<GMOCK_FIELD_TYPE_(Tuple, k0), GMOCK_FIELD_TYPE_(Tuple,
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k1), GMOCK_FIELD_TYPE_(Tuple, k2), GMOCK_FIELD_TYPE_(Tuple, k3),
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GMOCK_FIELD_TYPE_(Tuple, k4), GMOCK_FIELD_TYPE_(Tuple, k5),
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GMOCK_FIELD_TYPE_(Tuple, k6), GMOCK_FIELD_TYPE_(Tuple, k7)> type;
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static type GetSelectedFields(const Tuple& t) {
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return type(std::get<k0>(t), std::get<k1>(t), std::get<k2>(t),
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std::get<k3>(t), std::get<k4>(t), std::get<k5>(t), std::get<k6>(t),
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std::get<k7>(t));
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}
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};
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template <class Tuple, int k0, int k1, int k2, int k3, int k4, int k5, int k6,
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int k7, int k8>
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class TupleFields<Tuple, k0, k1, k2, k3, k4, k5, k6, k7, k8, -1> {
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public:
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typedef ::std::tuple<GMOCK_FIELD_TYPE_(Tuple, k0), GMOCK_FIELD_TYPE_(Tuple,
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k1), GMOCK_FIELD_TYPE_(Tuple, k2), GMOCK_FIELD_TYPE_(Tuple, k3),
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GMOCK_FIELD_TYPE_(Tuple, k4), GMOCK_FIELD_TYPE_(Tuple, k5),
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GMOCK_FIELD_TYPE_(Tuple, k6), GMOCK_FIELD_TYPE_(Tuple, k7),
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GMOCK_FIELD_TYPE_(Tuple, k8)> type;
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static type GetSelectedFields(const Tuple& t) {
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return type(std::get<k0>(t), std::get<k1>(t), std::get<k2>(t),
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std::get<k3>(t), std::get<k4>(t), std::get<k5>(t), std::get<k6>(t),
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std::get<k7>(t), std::get<k8>(t));
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}
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};
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#undef GMOCK_FIELD_TYPE_
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// Implements the Args() matcher.
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template <class ArgsTuple, int k0 = -1, int k1 = -1, int k2 = -1, int k3 = -1,
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int k4 = -1, int k5 = -1, int k6 = -1, int k7 = -1, int k8 = -1,
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int k9 = -1>
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class ArgsMatcherImpl : public MatcherInterface<ArgsTuple> {
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public:
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// ArgsTuple may have top-level const or reference modifiers.
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typedef GTEST_REMOVE_REFERENCE_AND_CONST_(ArgsTuple) RawArgsTuple;
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typedef typename internal::TupleFields<RawArgsTuple, k0, k1, k2, k3, k4, k5,
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k6, k7, k8, k9>::type SelectedArgs;
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typedef Matcher<const SelectedArgs&> MonomorphicInnerMatcher;
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template <typename InnerMatcher>
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explicit ArgsMatcherImpl(const InnerMatcher& inner_matcher)
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: inner_matcher_(SafeMatcherCast<const SelectedArgs&>(inner_matcher)) {}
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virtual bool MatchAndExplain(ArgsTuple args,
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MatchResultListener* listener) const {
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const SelectedArgs& selected_args = GetSelectedArgs(args);
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if (!listener->IsInterested())
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return inner_matcher_.Matches(selected_args);
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PrintIndices(listener->stream());
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*listener << "are " << PrintToString(selected_args);
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StringMatchResultListener inner_listener;
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const bool match = inner_matcher_.MatchAndExplain(selected_args,
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&inner_listener);
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PrintIfNotEmpty(inner_listener.str(), listener->stream());
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return match;
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}
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virtual void DescribeTo(::std::ostream* os) const {
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*os << "are a tuple ";
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PrintIndices(os);
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inner_matcher_.DescribeTo(os);
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}
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virtual void DescribeNegationTo(::std::ostream* os) const {
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*os << "are a tuple ";
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PrintIndices(os);
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inner_matcher_.DescribeNegationTo(os);
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}
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private:
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static SelectedArgs GetSelectedArgs(ArgsTuple args) {
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return TupleFields<RawArgsTuple, k0, k1, k2, k3, k4, k5, k6, k7, k8,
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k9>::GetSelectedFields(args);
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}
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// Prints the indices of the selected fields.
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static void PrintIndices(::std::ostream* os) {
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*os << "whose fields (";
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const int indices[10] = { k0, k1, k2, k3, k4, k5, k6, k7, k8, k9 };
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for (int i = 0; i < 10; i++) {
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if (indices[i] < 0)
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break;
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if (i >= 1)
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*os << ", ";
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*os << "#" << indices[i];
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}
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*os << ") ";
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}
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const MonomorphicInnerMatcher inner_matcher_;
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GTEST_DISALLOW_ASSIGN_(ArgsMatcherImpl);
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};
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template <class InnerMatcher, int k0 = -1, int k1 = -1, int k2 = -1,
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int k3 = -1, int k4 = -1, int k5 = -1, int k6 = -1, int k7 = -1,
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int k8 = -1, int k9 = -1>
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class ArgsMatcher {
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public:
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explicit ArgsMatcher(const InnerMatcher& inner_matcher)
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: inner_matcher_(inner_matcher) {}
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template <typename ArgsTuple>
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operator Matcher<ArgsTuple>() const {
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return MakeMatcher(new ArgsMatcherImpl<ArgsTuple, k0, k1, k2, k3, k4, k5,
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k6, k7, k8, k9>(inner_matcher_));
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}
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private:
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const InnerMatcher inner_matcher_;
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GTEST_DISALLOW_ASSIGN_(ArgsMatcher);
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};
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} // namespace internal
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// Args<N1, N2, ..., Nk>(a_matcher) matches a tuple if the selected
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// fields of it matches a_matcher. C++ doesn't support default
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// arguments for function templates, so we have to overload it.
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template <typename InnerMatcher>
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inline internal::ArgsMatcher<InnerMatcher>
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Args(const InnerMatcher& matcher) {
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return internal::ArgsMatcher<InnerMatcher>(matcher);
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}
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template <int k1, typename InnerMatcher>
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inline internal::ArgsMatcher<InnerMatcher, k1>
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Args(const InnerMatcher& matcher) {
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return internal::ArgsMatcher<InnerMatcher, k1>(matcher);
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}
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template <int k1, int k2, typename InnerMatcher>
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inline internal::ArgsMatcher<InnerMatcher, k1, k2>
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Args(const InnerMatcher& matcher) {
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return internal::ArgsMatcher<InnerMatcher, k1, k2>(matcher);
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}
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template <int k1, int k2, int k3, typename InnerMatcher>
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inline internal::ArgsMatcher<InnerMatcher, k1, k2, k3>
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Args(const InnerMatcher& matcher) {
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return internal::ArgsMatcher<InnerMatcher, k1, k2, k3>(matcher);
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}
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template <int k1, int k2, int k3, int k4, typename InnerMatcher>
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inline internal::ArgsMatcher<InnerMatcher, k1, k2, k3, k4>
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Args(const InnerMatcher& matcher) {
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return internal::ArgsMatcher<InnerMatcher, k1, k2, k3, k4>(matcher);
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}
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template <int k1, int k2, int k3, int k4, int k5, typename InnerMatcher>
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inline internal::ArgsMatcher<InnerMatcher, k1, k2, k3, k4, k5>
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Args(const InnerMatcher& matcher) {
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return internal::ArgsMatcher<InnerMatcher, k1, k2, k3, k4, k5>(matcher);
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}
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template <int k1, int k2, int k3, int k4, int k5, int k6, typename InnerMatcher>
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inline internal::ArgsMatcher<InnerMatcher, k1, k2, k3, k4, k5, k6>
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Args(const InnerMatcher& matcher) {
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return internal::ArgsMatcher<InnerMatcher, k1, k2, k3, k4, k5, k6>(matcher);
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}
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template <int k1, int k2, int k3, int k4, int k5, int k6, int k7,
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typename InnerMatcher>
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inline internal::ArgsMatcher<InnerMatcher, k1, k2, k3, k4, k5, k6, k7>
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Args(const InnerMatcher& matcher) {
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return internal::ArgsMatcher<InnerMatcher, k1, k2, k3, k4, k5, k6,
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k7>(matcher);
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}
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template <int k1, int k2, int k3, int k4, int k5, int k6, int k7, int k8,
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typename InnerMatcher>
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inline internal::ArgsMatcher<InnerMatcher, k1, k2, k3, k4, k5, k6, k7, k8>
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Args(const InnerMatcher& matcher) {
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return internal::ArgsMatcher<InnerMatcher, k1, k2, k3, k4, k5, k6, k7,
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k8>(matcher);
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}
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template <int k1, int k2, int k3, int k4, int k5, int k6, int k7, int k8,
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int k9, typename InnerMatcher>
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inline internal::ArgsMatcher<InnerMatcher, k1, k2, k3, k4, k5, k6, k7, k8, k9>
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Args(const InnerMatcher& matcher) {
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return internal::ArgsMatcher<InnerMatcher, k1, k2, k3, k4, k5, k6, k7, k8,
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k9>(matcher);
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}
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template <int k1, int k2, int k3, int k4, int k5, int k6, int k7, int k8,
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int k9, int k10, typename InnerMatcher>
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inline internal::ArgsMatcher<InnerMatcher, k1, k2, k3, k4, k5, k6, k7, k8, k9,
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k10>
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Args(const InnerMatcher& matcher) {
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return internal::ArgsMatcher<InnerMatcher, k1, k2, k3, k4, k5, k6, k7, k8,
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k9, k10>(matcher);
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}
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} // namespace testing
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// The MATCHER* family of macros can be used in a namespace scope to
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// define custom matchers easily.
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//
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