#include "gtest/internal/gtest-port.h"
#include "gtest/internal/gtest-internal.h"
+#if GTEST_HAS_STD_TUPLE_
+# include <tuple>
+#endif
+
namespace testing {
// Definitions in the 'internal' and 'internal2' name spaces are
namespace testing {
namespace internal {
+// FormatForComparison<ToPrint, OtherOperand>::Format(value) formats a
+// value of type ToPrint that is an operand of a comparison assertion
+// (e.g. ASSERT_EQ). OtherOperand is the type of the other operand in
+// the comparison, and is used to help determine the best way to
+// format the value. In particular, when the value is a C string
+// (char pointer) and the other operand is an STL string object, we
+// want to format the C string as a string, since we know it is
+// compared by value with the string object. If the value is a char
+// pointer but the other operand is not an STL string object, we don't
+// know whether the pointer is supposed to point to a NUL-terminated
+// string, and thus want to print it as a pointer to be safe.
+//
+// INTERNAL IMPLEMENTATION - DO NOT USE IN A USER PROGRAM.
+
+// The default case.
+template <typename ToPrint, typename OtherOperand>
+class FormatForComparison {
+ public:
+ static ::std::string Format(const ToPrint& value) {
+ return ::testing::PrintToString(value);
+ }
+};
+
+// Array.
+template <typename ToPrint, size_t N, typename OtherOperand>
+class FormatForComparison<ToPrint[N], OtherOperand> {
+ public:
+ static ::std::string Format(const ToPrint* value) {
+ return FormatForComparison<const ToPrint*, OtherOperand>::Format(value);
+ }
+};
+
+// By default, print C string as pointers to be safe, as we don't know
+// whether they actually point to a NUL-terminated string.
+
+#define GTEST_IMPL_FORMAT_C_STRING_AS_POINTER_(CharType) \
+ template <typename OtherOperand> \
+ class FormatForComparison<CharType*, OtherOperand> { \
+ public: \
+ static ::std::string Format(CharType* value) { \
+ return ::testing::PrintToString(static_cast<const void*>(value)); \
+ } \
+ }
+
+GTEST_IMPL_FORMAT_C_STRING_AS_POINTER_(char);
+GTEST_IMPL_FORMAT_C_STRING_AS_POINTER_(const char);
+GTEST_IMPL_FORMAT_C_STRING_AS_POINTER_(wchar_t);
+GTEST_IMPL_FORMAT_C_STRING_AS_POINTER_(const wchar_t);
+
+#undef GTEST_IMPL_FORMAT_C_STRING_AS_POINTER_
+
+// If a C string is compared with an STL string object, we know it's meant
+// to point to a NUL-terminated string, and thus can print it as a string.
+
+#define GTEST_IMPL_FORMAT_C_STRING_AS_STRING_(CharType, OtherStringType) \
+ template <> \
+ class FormatForComparison<CharType*, OtherStringType> { \
+ public: \
+ static ::std::string Format(CharType* value) { \
+ return ::testing::PrintToString(value); \
+ } \
+ }
+
+GTEST_IMPL_FORMAT_C_STRING_AS_STRING_(char, ::std::string);
+GTEST_IMPL_FORMAT_C_STRING_AS_STRING_(const char, ::std::string);
+
+#if GTEST_HAS_GLOBAL_STRING
+GTEST_IMPL_FORMAT_C_STRING_AS_STRING_(char, ::string);
+GTEST_IMPL_FORMAT_C_STRING_AS_STRING_(const char, ::string);
+#endif
+
+#if GTEST_HAS_GLOBAL_WSTRING
+GTEST_IMPL_FORMAT_C_STRING_AS_STRING_(wchar_t, ::wstring);
+GTEST_IMPL_FORMAT_C_STRING_AS_STRING_(const wchar_t, ::wstring);
+#endif
+
+#if GTEST_HAS_STD_WSTRING
+GTEST_IMPL_FORMAT_C_STRING_AS_STRING_(wchar_t, ::std::wstring);
+GTEST_IMPL_FORMAT_C_STRING_AS_STRING_(const wchar_t, ::std::wstring);
+#endif
+
+#undef GTEST_IMPL_FORMAT_C_STRING_AS_STRING_
+
+// Formats a comparison assertion (e.g. ASSERT_EQ, EXPECT_LT, and etc)
+// operand to be used in a failure message. The type (but not value)
+// of the other operand may affect the format. This allows us to
+// print a char* as a raw pointer when it is compared against another
+// char* or void*, and print it as a C string when it is compared
+// against an std::string object, for example.
+//
+// INTERNAL IMPLEMENTATION - DO NOT USE IN A USER PROGRAM.
+template <typename T1, typename T2>
+std::string FormatForComparisonFailureMessage(
+ const T1& value, const T2& /* other_operand */) {
+ return FormatForComparison<T1, T2>::Format(value);
+}
+
// UniversalPrinter<T>::Print(value, ostream_ptr) prints the given
// value to the given ostream. The caller must ensure that
// 'ostream_ptr' is not NULL, or the behavior is undefined.
}
#endif // GTEST_HAS_STD_WSTRING
-#if GTEST_HAS_TR1_TUPLE
-// Overload for ::std::tr1::tuple. Needed for printing function arguments,
-// which are packed as tuples.
-
+#if GTEST_HAS_TR1_TUPLE || GTEST_HAS_STD_TUPLE_
// 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);
+#endif // GTEST_HAS_TR1_TUPLE || GTEST_HAS_STD_TUPLE_
+
+#if GTEST_HAS_TR1_TUPLE
+// Overload for ::std::tr1::tuple. Needed for printing function arguments,
+// which are packed as tuples.
// Overloaded PrintTo() for tuples of various arities. We support
// tuples of up-to 10 fields. The following implementation works
}
#endif // GTEST_HAS_TR1_TUPLE
+#if GTEST_HAS_STD_TUPLE_
+template <typename... Types>
+void PrintTo(const ::std::tuple<Types...>& t, ::std::ostream* os) {
+ PrintTupleTo(t, os);
+}
+#endif // GTEST_HAS_STD_TUPLE_
+
// Overload for std::pair.
template <typename T1, typename T2>
void PrintTo(const ::std::pair<T1, T2>& value, ::std::ostream* os) {
public:
// MSVC warns about adding const to a function type, so we want to
// disable the warning.
-#ifdef _MSC_VER
-# pragma warning(push) // Saves the current warning state.
-# pragma warning(disable:4180) // Temporarily disables warning 4180.
-#endif // _MSC_VER
+ GTEST_DISABLE_MSC_WARNINGS_PUSH_(4180)
// Note: we deliberately don't call this PrintTo(), as that name
// conflicts with ::testing::internal::PrintTo in the body of the
PrintTo(value, os);
}
-#ifdef _MSC_VER
-# pragma warning(pop) // Restores the warning state.
-#endif // _MSC_VER
+ GTEST_DISABLE_MSC_WARNINGS_POP_()
};
// UniversalPrintArray(begin, len, os) prints an array of 'len'
}
}
// This overload prints a (const) char array compactly.
-GTEST_API_ void UniversalPrintArray(const char* begin,
- size_t len,
- ::std::ostream* os);
+GTEST_API_ void UniversalPrintArray(
+ const char* begin, size_t len, ::std::ostream* os);
+
+// This overload prints a (const) wchar_t array compactly.
+GTEST_API_ void UniversalPrintArray(
+ const wchar_t* begin, size_t len, ::std::ostream* os);
// Implements printing an array type T[N].
template <typename T, size_t N>
public:
// MSVC warns about adding const to a function type, so we want to
// disable the warning.
-#ifdef _MSC_VER
-# pragma warning(push) // Saves the current warning state.
-# pragma warning(disable:4180) // Temporarily disables warning 4180.
-#endif // _MSC_VER
+ GTEST_DISABLE_MSC_WARNINGS_PUSH_(4180)
static void Print(const T& value, ::std::ostream* os) {
// Prints the address of the value. We use reinterpret_cast here
UniversalPrint(value, os);
}
-#ifdef _MSC_VER
-# pragma warning(pop) // Restores the warning state.
-#endif // _MSC_VER
+ GTEST_DISABLE_MSC_WARNINGS_POP_()
};
// Prints a value tersely: for a reference type, the referenced value
// (but not the address) is printed; for a (const) char pointer, the
// NUL-terminated string (but not the pointer) is printed.
+
template <typename T>
-void UniversalTersePrint(const T& value, ::std::ostream* os) {
- UniversalPrint(value, os);
-}
-inline void UniversalTersePrint(const char* str, ::std::ostream* os) {
- if (str == NULL) {
- *os << "NULL";
- } else {
- UniversalPrint(string(str), os);
+class UniversalTersePrinter {
+ public:
+ static void Print(const T& value, ::std::ostream* os) {
+ UniversalPrint(value, os);
}
-}
-inline void UniversalTersePrint(char* str, ::std::ostream* os) {
- UniversalTersePrint(static_cast<const char*>(str), os);
+};
+template <typename T>
+class UniversalTersePrinter<T&> {
+ public:
+ static void Print(const T& value, ::std::ostream* os) {
+ UniversalPrint(value, os);
+ }
+};
+template <typename T, size_t N>
+class UniversalTersePrinter<T[N]> {
+ public:
+ static void Print(const T (&value)[N], ::std::ostream* os) {
+ UniversalPrinter<T[N]>::Print(value, os);
+ }
+};
+template <>
+class UniversalTersePrinter<const char*> {
+ public:
+ static void Print(const char* str, ::std::ostream* os) {
+ if (str == NULL) {
+ *os << "NULL";
+ } else {
+ UniversalPrint(string(str), os);
+ }
+ }
+};
+template <>
+class UniversalTersePrinter<char*> {
+ public:
+ static void Print(char* str, ::std::ostream* os) {
+ UniversalTersePrinter<const char*>::Print(str, os);
+ }
+};
+
+#if GTEST_HAS_STD_WSTRING
+template <>
+class UniversalTersePrinter<const wchar_t*> {
+ public:
+ static void Print(const wchar_t* str, ::std::ostream* os) {
+ if (str == NULL) {
+ *os << "NULL";
+ } else {
+ UniversalPrint(::std::wstring(str), os);
+ }
+ }
+};
+#endif
+
+template <>
+class UniversalTersePrinter<wchar_t*> {
+ public:
+ static void Print(wchar_t* str, ::std::ostream* os) {
+ UniversalTersePrinter<const wchar_t*>::Print(str, os);
+ }
+};
+
+template <typename T>
+void UniversalTersePrint(const T& value, ::std::ostream* os) {
+ UniversalTersePrinter<T>::Print(value, os);
}
// Prints a value using the type inferred by the compiler. The
// NUL-terminated string.
template <typename T>
void UniversalPrint(const T& value, ::std::ostream* os) {
- UniversalPrinter<T>::Print(value, os);
+ // A workarond for the bug in VC++ 7.1 that prevents us from instantiating
+ // UniversalPrinter with T directly.
+ typedef T T1;
+ UniversalPrinter<T1>::Print(value, os);
}
-#if GTEST_HAS_TR1_TUPLE
typedef ::std::vector<string> Strings;
+// TuplePolicy<TupleT> must provide:
+// - tuple_size
+// size of tuple TupleT.
+// - get<size_t I>(const TupleT& t)
+// static function extracting element I of tuple TupleT.
+// - tuple_element<size_t I>::type
+// type of element I of tuple TupleT.
+template <typename TupleT>
+struct TuplePolicy;
+
+#if GTEST_HAS_TR1_TUPLE
+template <typename TupleT>
+struct TuplePolicy {
+ typedef TupleT Tuple;
+ static const size_t tuple_size = ::std::tr1::tuple_size<Tuple>::value;
+
+ template <size_t I>
+ struct tuple_element : ::std::tr1::tuple_element<I, Tuple> {};
+
+ template <size_t I>
+ static typename AddReference<
+ const typename ::std::tr1::tuple_element<I, Tuple>::type>::type get(
+ const Tuple& tuple) {
+ return ::std::tr1::get<I>(tuple);
+ }
+};
+template <typename TupleT>
+const size_t TuplePolicy<TupleT>::tuple_size;
+#endif // GTEST_HAS_TR1_TUPLE
+
+#if GTEST_HAS_STD_TUPLE_
+template <typename... Types>
+struct TuplePolicy< ::std::tuple<Types...> > {
+ typedef ::std::tuple<Types...> Tuple;
+ static const size_t tuple_size = ::std::tuple_size<Tuple>::value;
+
+ template <size_t I>
+ struct tuple_element : ::std::tuple_element<I, Tuple> {};
+
+ template <size_t I>
+ static const typename ::std::tuple_element<I, Tuple>::type& get(
+ const Tuple& tuple) {
+ return ::std::get<I>(tuple);
+ }
+};
+template <typename... Types>
+const size_t TuplePolicy< ::std::tuple<Types...> >::tuple_size;
+#endif // GTEST_HAS_STD_TUPLE_
+
+#if GTEST_HAS_TR1_TUPLE || GTEST_HAS_STD_TUPLE_
// 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 {
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);
+ GTEST_INTENTIONAL_CONST_COND_PUSH_()
+ if (N > 1) {
+ GTEST_INTENTIONAL_CONST_COND_POP_()
+ *os << ", ";
+ }
+ UniversalPrinter<
+ typename TuplePolicy<Tuple>::template tuple_element<N - 1>::type>
+ ::Print(TuplePolicy<Tuple>::template get<N - 1>(t), os);
}
// Tersely prints the first N fields of a tuple to a string vector,
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);
+ UniversalTersePrint(TuplePolicy<Tuple>::template get<N - 1>(t), &ss);
strings->push_back(ss.str());
}
};
-// Base cases.
+// Base case.
template <>
struct TuplePrefixPrinter<0> {
template <typename Tuple>
template <typename Tuple>
static void TersePrintPrefixToStrings(const Tuple&, Strings*) {}
};
-// We have to specialize the entire TuplePrefixPrinter<> class
-// template here, even though the definition of
-// TersePrintPrefixToStrings() is the same as the generic version, as
-// Embarcadero (formerly CodeGear, formerly Borland) C++ doesn't
-// support specializing a method template of a class template.
-template <>
-struct TuplePrefixPrinter<1> {
- template <typename Tuple>
- static void PrintPrefixTo(const Tuple& t, ::std::ostream* os) {
- UniversalPrinter<typename ::std::tr1::tuple_element<0, Tuple>::type>::
- Print(::std::tr1::get<0>(t), os);
- }
- template <typename Tuple>
- static void TersePrintPrefixToStrings(const Tuple& t, Strings* strings) {
- ::std::stringstream ss;
- UniversalTersePrint(::std::tr1::get<0>(t), &ss);
- strings->push_back(ss.str());
- }
-};
-
-// 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) {
+// Helper function for printing a tuple.
+// Tuple must be either std::tr1::tuple or std::tuple type.
+template <typename Tuple>
+void PrintTupleTo(const Tuple& t, ::std::ostream* os) {
*os << "(";
- TuplePrefixPrinter< ::std::tr1::tuple_size<T>::value>::
- PrintPrefixTo(t, os);
+ TuplePrefixPrinter<TuplePolicy<Tuple>::tuple_size>::PrintPrefixTo(t, os);
*os << ")";
}
template <typename Tuple>
Strings UniversalTersePrintTupleFieldsToStrings(const Tuple& value) {
Strings result;
- TuplePrefixPrinter< ::std::tr1::tuple_size<Tuple>::value>::
+ TuplePrefixPrinter<TuplePolicy<Tuple>::tuple_size>::
TersePrintPrefixToStrings(value, &result);
return result;
}
-#endif // GTEST_HAS_TR1_TUPLE
+#endif // GTEST_HAS_TR1_TUPLE || GTEST_HAS_STD_TUPLE_
} // namespace internal
template <typename T>
::std::string PrintToString(const T& value) {
::std::stringstream ss;
- internal::UniversalTersePrint(value, &ss);
+ internal::UniversalTersePrinter<T>::Print(value, &ss);
return ss.str();
}
} // namespace testing
+// Include any custom printer added by the local installation.
+// We must include this header at the end to make sure it can use the
+// declarations from this file.
+#include "gtest/internal/custom/gtest-printers.h"
+
#endif // GTEST_INCLUDE_GTEST_GTEST_PRINTERS_H_
projects / platform / upstream / gtest.git / blobdiff