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libcares/test/gmock-1.8.0/gmock/gmock.h  view on Meta::CPAN

//   wchar_t == signed wchar_t != unsigned wchar_t == unsigned int
#ifdef __GNUC__
// signed/unsigned wchar_t are valid types.
# define GMOCK_HAS_SIGNED_WCHAR_T_ 1
#endif

// In what follows, we use the term "kind" to indicate whether a type
// is bool, an integer type (excluding bool), a floating-point type,
// or none of them.  This categorization is useful for determining
// when a matcher argument type can be safely converted to another
// type in the implementation of SafeMatcherCast.
enum TypeKind {
  kBool, kInteger, kFloatingPoint, kOther
};

// KindOf<T>::value is the kind of type T.
template <typename T> struct KindOf {
  enum { value = kOther };  // The default kind.
};

// This macro declares that the kind of 'type' is 'kind'.
#define GMOCK_DECLARE_KIND_(type, kind) \
  template <> struct KindOf<type> { enum { value = kind }; }

GMOCK_DECLARE_KIND_(bool, kBool);

// All standard integer types.
GMOCK_DECLARE_KIND_(char, kInteger);
GMOCK_DECLARE_KIND_(signed char, kInteger);
GMOCK_DECLARE_KIND_(unsigned char, kInteger);
GMOCK_DECLARE_KIND_(short, kInteger);  // NOLINT
GMOCK_DECLARE_KIND_(unsigned short, kInteger);  // NOLINT
GMOCK_DECLARE_KIND_(int, kInteger);
GMOCK_DECLARE_KIND_(unsigned int, kInteger);
GMOCK_DECLARE_KIND_(long, kInteger);  // NOLINT
GMOCK_DECLARE_KIND_(unsigned long, kInteger);  // NOLINT

#if GMOCK_WCHAR_T_IS_NATIVE_
GMOCK_DECLARE_KIND_(wchar_t, kInteger);
#endif

// Non-standard integer types.
GMOCK_DECLARE_KIND_(Int64, kInteger);
GMOCK_DECLARE_KIND_(UInt64, kInteger);

// All standard floating-point types.
GMOCK_DECLARE_KIND_(float, kFloatingPoint);
GMOCK_DECLARE_KIND_(double, kFloatingPoint);
GMOCK_DECLARE_KIND_(long double, kFloatingPoint);

#undef GMOCK_DECLARE_KIND_

// Evaluates to the kind of 'type'.
#define GMOCK_KIND_OF_(type) \
  static_cast< ::testing::internal::TypeKind>( \
      ::testing::internal::KindOf<type>::value)

// Evaluates to true iff integer type T is signed.
#define GMOCK_IS_SIGNED_(T) (static_cast<T>(-1) < 0)

// LosslessArithmeticConvertibleImpl<kFromKind, From, kToKind, To>::value
// is true iff arithmetic type From can be losslessly converted to
// arithmetic type To.
//
// It's the user's responsibility to ensure that both From and To are
// raw (i.e. has no CV modifier, is not a pointer, and is not a
// reference) built-in arithmetic types, kFromKind is the kind of
// From, and kToKind is the kind of To; the value is
// implementation-defined when the above pre-condition is violated.
template <TypeKind kFromKind, typename From, TypeKind kToKind, typename To>
struct LosslessArithmeticConvertibleImpl : public false_type {};

// Converting bool to bool is lossless.
template <>
struct LosslessArithmeticConvertibleImpl<kBool, bool, kBool, bool>
    : public true_type {};  // NOLINT

// Converting bool to any integer type is lossless.
template <typename To>
struct LosslessArithmeticConvertibleImpl<kBool, bool, kInteger, To>
    : public true_type {};  // NOLINT

// Converting bool to any floating-point type is lossless.
template <typename To>
struct LosslessArithmeticConvertibleImpl<kBool, bool, kFloatingPoint, To>
    : public true_type {};  // NOLINT

// Converting an integer to bool is lossy.
template <typename From>
struct LosslessArithmeticConvertibleImpl<kInteger, From, kBool, bool>
    : public false_type {};  // NOLINT

// Converting an integer to another non-bool integer is lossless iff
// the target type's range encloses the source type's range.
template <typename From, typename To>
struct LosslessArithmeticConvertibleImpl<kInteger, From, kInteger, To>
    : public bool_constant<
      // When converting from a smaller size to a larger size, we are
      // fine as long as we are not converting from signed to unsigned.
      ((sizeof(From) < sizeof(To)) &&
       (!GMOCK_IS_SIGNED_(From) || GMOCK_IS_SIGNED_(To))) ||
      // When converting between the same size, the signedness must match.
      ((sizeof(From) == sizeof(To)) &&
       (GMOCK_IS_SIGNED_(From) == GMOCK_IS_SIGNED_(To)))> {};  // NOLINT

#undef GMOCK_IS_SIGNED_

// Converting an integer to a floating-point type may be lossy, since
// the format of a floating-point number is implementation-defined.
template <typename From, typename To>
struct LosslessArithmeticConvertibleImpl<kInteger, From, kFloatingPoint, To>
    : public false_type {};  // NOLINT

// Converting a floating-point to bool is lossy.
template <typename From>
struct LosslessArithmeticConvertibleImpl<kFloatingPoint, From, kBool, bool>
    : public false_type {};  // NOLINT

// Converting a floating-point to an integer is lossy.
template <typename From, typename To>
struct LosslessArithmeticConvertibleImpl<kFloatingPoint, From, kInteger, To>
    : public false_type {};  // NOLINT

// Converting a floating-point to another floating-point is lossless
// iff the target type is at least as big as the source type.
template <typename From, typename To>
struct LosslessArithmeticConvertibleImpl<
  kFloatingPoint, From, kFloatingPoint, To>
    : public bool_constant<sizeof(From) <= sizeof(To)> {};  // NOLINT

// LosslessArithmeticConvertible<From, To>::value is true iff arithmetic
// type From can be losslessly converted to arithmetic type To.
//
// It's the user's responsibility to ensure that both From and To are
// raw (i.e. has no CV modifier, is not a pointer, and is not a
// reference) built-in arithmetic types; the value is
// implementation-defined when the above pre-condition is violated.
template <typename From, typename To>
struct LosslessArithmeticConvertible
    : public LosslessArithmeticConvertibleImpl<
  GMOCK_KIND_OF_(From), From, GMOCK_KIND_OF_(To), To> {};  // NOLINT

// This interface knows how to report a Google Mock failure (either
// non-fatal or fatal).
class FailureReporterInterface {
 public:
  // The type of a failure (either non-fatal or fatal).
  enum FailureType {
    kNonfatal, kFatal
  };

  virtual ~FailureReporterInterface() {}

  // Reports a failure that occurred at the given source file location.
  virtual void ReportFailure(FailureType type, const char* file, int line,
                             const string& message) = 0;
};

// Returns the failure reporter used by Google Mock.
GTEST_API_ FailureReporterInterface* GetFailureReporter();

// Asserts that condition is true; aborts the process with the given
// message if condition is false.  We cannot use LOG(FATAL) or CHECK()
// as Google Mock might be used to mock the log sink itself.  We
// inline this function to prevent it from showing up in the stack
// trace.
inline void Assert(bool condition, const char* file, int line,
                   const string& msg) {
  if (!condition) {
    GetFailureReporter()->ReportFailure(FailureReporterInterface::kFatal,
                                        file, line, msg);
  }
}
inline void Assert(bool condition, const char* file, int line) {
  Assert(condition, file, line, "Assertion failed.");
}

// Verifies that condition is true; generates a non-fatal failure if
// condition is false.
inline void Expect(bool condition, const char* file, int line,
                   const string& msg) {
  if (!condition) {
    GetFailureReporter()->ReportFailure(FailureReporterInterface::kNonfatal,
                                        file, line, msg);
  }
}
inline void Expect(bool condition, const char* file, int line) {
  Expect(condition, file, line, "Expectation failed.");
}

// Severity level of a log.
enum LogSeverity {
  kInfo = 0,
  kWarning = 1
};

// Valid values for the --gmock_verbose flag.

// All logs (informational and warnings) are printed.
const char kInfoVerbosity[] = "info";

libcares/test/gmock-1.8.0/gmock/gmock.h  view on Meta::CPAN

class MatcherCastImpl<T, Matcher<T> > {
 public:
  static Matcher<T> Cast(const Matcher<T>& matcher) { return matcher; }
};

}  // namespace internal

// In order to be safe and clear, casting between different matcher
// types is done explicitly via MatcherCast<T>(m), which takes a
// matcher m and returns a Matcher<T>.  It compiles only when T can be
// statically converted to the argument type of m.
template <typename T, typename M>
inline Matcher<T> MatcherCast(const M& matcher) {
  return internal::MatcherCastImpl<T, M>::Cast(matcher);
}

// Implements SafeMatcherCast().
//
// We use an intermediate class to do the actual safe casting as Nokia's
// Symbian compiler cannot decide between
// template <T, M> ... (M) and
// template <T, U> ... (const Matcher<U>&)
// for function templates but can for member function templates.
template <typename T>
class SafeMatcherCastImpl {
 public:
  // This overload handles polymorphic matchers and values only since
  // monomorphic matchers are handled by the next one.
  template <typename M>
  static inline Matcher<T> Cast(const M& polymorphic_matcher_or_value) {
    return internal::MatcherCastImpl<T, M>::Cast(polymorphic_matcher_or_value);
  }

  // This overload handles monomorphic matchers.
  //
  // In general, if type T can be implicitly converted to type U, we can
  // safely convert a Matcher<U> to a Matcher<T> (i.e. Matcher is
  // contravariant): just keep a copy of the original Matcher<U>, convert the
  // argument from type T to U, and then pass it to the underlying Matcher<U>.
  // The only exception is when U is a reference and T is not, as the
  // underlying Matcher<U> may be interested in the argument's address, which
  // is not preserved in the conversion from T to U.
  template <typename U>
  static inline Matcher<T> Cast(const Matcher<U>& matcher) {
    // Enforce that T can be implicitly converted to U.
    GTEST_COMPILE_ASSERT_((internal::ImplicitlyConvertible<T, U>::value),
                          T_must_be_implicitly_convertible_to_U);
    // Enforce that we are not converting a non-reference type T to a reference
    // type U.
    GTEST_COMPILE_ASSERT_(
        internal::is_reference<T>::value || !internal::is_reference<U>::value,
        cannot_convert_non_referentce_arg_to_reference);
    // In case both T and U are arithmetic types, enforce that the
    // conversion is not lossy.
    typedef GTEST_REMOVE_REFERENCE_AND_CONST_(T) RawT;
    typedef GTEST_REMOVE_REFERENCE_AND_CONST_(U) RawU;
    const bool kTIsOther = GMOCK_KIND_OF_(RawT) == internal::kOther;
    const bool kUIsOther = GMOCK_KIND_OF_(RawU) == internal::kOther;
    GTEST_COMPILE_ASSERT_(
        kTIsOther || kUIsOther ||
        (internal::LosslessArithmeticConvertible<RawT, RawU>::value),
        conversion_of_arithmetic_types_must_be_lossless);
    return MatcherCast<T>(matcher);
  }
};

template <typename T, typename M>
inline Matcher<T> SafeMatcherCast(const M& polymorphic_matcher) {
  return SafeMatcherCastImpl<T>::Cast(polymorphic_matcher);
}

// A<T>() returns a matcher that matches any value of type T.
template <typename T>
Matcher<T> A();

// Anything inside the 'internal' namespace IS INTERNAL IMPLEMENTATION
// and MUST NOT BE USED IN USER CODE!!!
namespace internal {

// If the explanation is not empty, prints it to the ostream.
inline void PrintIfNotEmpty(const internal::string& explanation,
                            ::std::ostream* os) {
  if (explanation != "" && os != NULL) {
    *os << ", " << explanation;
  }
}

// Returns true if the given type name is easy to read by a human.
// This is used to decide whether printing the type of a value might
// be helpful.
inline bool IsReadableTypeName(const string& type_name) {
  // We consider a type name readable if it's short or doesn't contain
  // a template or function type.
  return (type_name.length() <= 20 ||
          type_name.find_first_of("<(") == string::npos);
}

// Matches the value against the given matcher, prints the value and explains
// the match result to the listener. Returns the match result.
// 'listener' must not be NULL.
// Value cannot be passed by const reference, because some matchers take a
// non-const argument.
template <typename Value, typename T>
bool MatchPrintAndExplain(Value& value, const Matcher<T>& matcher,
                          MatchResultListener* listener) {
  if (!listener->IsInterested()) {
    // If the listener is not interested, we do not need to construct the
    // inner explanation.
    return matcher.Matches(value);
  }

  StringMatchResultListener inner_listener;
  const bool match = matcher.MatchAndExplain(value, &inner_listener);

  UniversalPrint(value, listener->stream());
#if GTEST_HAS_RTTI
  const string& type_name = GetTypeName<Value>();
  if (IsReadableTypeName(type_name))
    *listener->stream() << " (of type " << type_name << ")";
#endif
  PrintIfNotEmpty(inner_listener.str(), listener->stream());