diff options
| -rw-r--r-- | include/gmock/gmock-printers.h | 113 |
1 files changed, 59 insertions, 54 deletions
diff --git a/include/gmock/gmock-printers.h b/include/gmock/gmock-printers.h index e07d92af..9f024d0c 100644 --- a/include/gmock/gmock-printers.h +++ b/include/gmock/gmock-printers.h @@ -434,63 +434,10 @@ inline void PrintTo(const ::std::wstring& s, ::std::ostream* os) { // Overload for ::std::tr1::tuple. Needed for printing function // arguments, which are packed as tuples. -typedef ::std::vector<string> Strings; - -// This helper template allows PrintTo() for tuples and -// UniversalTersePrintTupleFieldsToStrings() to be defined by -// induction on the number of tuple fields. The idea is that -// TuplePrefixPrinter<N>::PrintPrefixTo(t, os) prints the first N -// fields in tuple t, and can be defined in terms of -// TuplePrefixPrinter<N - 1>. - -// The inductive case. -template <size_t N> -struct TuplePrefixPrinter { - // Prints the first N fields of a tuple. - template <typename Tuple> - static void PrintPrefixTo(const Tuple& t, ::std::ostream* os) { - TuplePrefixPrinter<N - 1>::PrintPrefixTo(t, os); - *os << ", "; - UniversalPrinter<typename ::std::tr1::tuple_element<N - 1, Tuple>::type> - ::Print(::std::tr1::get<N - 1>(t), os); - } - - // Tersely prints the first N fields of a tuple to a string vector, - // one element for each field. - template <typename Tuple> - static void TersePrintPrefixToStrings(const Tuple& t, Strings* strings) { - TuplePrefixPrinter<N - 1>::TersePrintPrefixToStrings(t, strings); - ::std::stringstream ss; - UniversalTersePrint(::std::tr1::get<N - 1>(t), &ss); - strings->push_back(ss.str()); - } -}; - -// Base cases. -template <> -struct TuplePrefixPrinter<0> { - template <typename Tuple> - static void PrintPrefixTo(const Tuple&, ::std::ostream*) {} - - template <typename Tuple> - static void TersePrintPrefixToStrings(const Tuple&, Strings*) {} -}; -template <> -template <typename Tuple> -void TuplePrefixPrinter<1>::PrintPrefixTo(const Tuple& t, ::std::ostream* os) { - UniversalPrinter<typename ::std::tr1::tuple_element<0, Tuple>::type>:: - Print(::std::tr1::get<0>(t), os); -} - // Helper function for printing a tuple. T must be instantiated with // a tuple type. template <typename T> -void PrintTupleTo(const T& t, ::std::ostream* os) { - *os << "("; - TuplePrefixPrinter< ::std::tr1::tuple_size<T>::value>:: - PrintPrefixTo(t, os); - *os << ")"; -} +void PrintTupleTo(const T& t, ::std::ostream* os); // Overloaded PrintTo() for tuples of various arities. We support // tuples of up-to 10 fields. The following implementation works @@ -725,6 +672,64 @@ void UniversalPrint(const T& value, ::std::ostream* os) { UniversalPrinter<T>::Print(value, os); } +typedef ::std::vector<string> Strings; + +// This helper template allows PrintTo() for tuples and +// UniversalTersePrintTupleFieldsToStrings() to be defined by +// induction on the number of tuple fields. The idea is that +// TuplePrefixPrinter<N>::PrintPrefixTo(t, os) prints the first N +// fields in tuple t, and can be defined in terms of +// TuplePrefixPrinter<N - 1>. + +// The inductive case. +template <size_t N> +struct TuplePrefixPrinter { + // Prints the first N fields of a tuple. + template <typename Tuple> + static void PrintPrefixTo(const Tuple& t, ::std::ostream* os) { + TuplePrefixPrinter<N - 1>::PrintPrefixTo(t, os); + *os << ", "; + UniversalPrinter<typename ::std::tr1::tuple_element<N - 1, Tuple>::type> + ::Print(::std::tr1::get<N - 1>(t), os); + } + + // Tersely prints the first N fields of a tuple to a string vector, + // one element for each field. + template <typename Tuple> + static void TersePrintPrefixToStrings(const Tuple& t, Strings* strings) { + TuplePrefixPrinter<N - 1>::TersePrintPrefixToStrings(t, strings); + ::std::stringstream ss; + UniversalTersePrint(::std::tr1::get<N - 1>(t), &ss); + strings->push_back(ss.str()); + } +}; + +// Base cases. +template <> +struct TuplePrefixPrinter<0> { + template <typename Tuple> + static void PrintPrefixTo(const Tuple&, ::std::ostream*) {} + + template <typename Tuple> + static void TersePrintPrefixToStrings(const Tuple&, Strings*) {} +}; +template <> +template <typename Tuple> +void TuplePrefixPrinter<1>::PrintPrefixTo(const Tuple& t, ::std::ostream* os) { + UniversalPrinter<typename ::std::tr1::tuple_element<0, Tuple>::type>:: + Print(::std::tr1::get<0>(t), os); +} + +// Helper function for printing a tuple. T must be instantiated with +// a tuple type. +template <typename T> +void PrintTupleTo(const T& t, ::std::ostream* os) { + *os << "("; + TuplePrefixPrinter< ::std::tr1::tuple_size<T>::value>:: + PrintPrefixTo(t, os); + *os << ")"; +} + // Prints the fields of a tuple tersely to a string vector, one // element for each field. See the comment before // UniversalTersePrint() for how we define "tersely". |