// being defined as many user-defined container types don't have
// value_type.
-// GOOGLETEST_CM0001 DO NOT DELETE
-
-#ifndef GTEST_INCLUDE_GTEST_GTEST_PRINTERS_H_
-#define GTEST_INCLUDE_GTEST_GTEST_PRINTERS_H_
+#ifndef GOOGLETEST_INCLUDE_GTEST_GTEST_PRINTERS_H_
+#define GOOGLETEST_INCLUDE_GTEST_GTEST_PRINTERS_H_
+#include <functional>
+#include <memory>
#include <ostream> // NOLINT
#include <sstream>
#include <string>
+#include <tuple>
+#include <type_traits>
#include <utility>
#include <vector>
-#include "gtest/internal/gtest-port.h"
+
#include "gtest/internal/gtest-internal.h"
+#include "gtest/internal/gtest-port.h"
-#if GTEST_HAS_STD_TUPLE_
-# include <tuple>
-#endif
+namespace testing {
-#if GTEST_HAS_ABSL
-#include "absl/strings/string_view.h"
-#include "absl/types/optional.h"
-#include "absl/types/variant.h"
-#endif // GTEST_HAS_ABSL
+// Definitions in the internal* namespaces are subject to change without notice.
+// DO NOT USE THEM IN USER CODE!
+namespace internal {
-namespace testing {
+template <typename T>
+void UniversalPrint(const T& value, ::std::ostream* os);
-// Definitions in the 'internal' and 'internal2' name spaces are
-// subject to change without notice. DO NOT USE THEM IN USER CODE!
-namespace internal2 {
+// Used to print an STL-style container when the user doesn't define
+// a PrintTo() for it.
+struct ContainerPrinter {
+ template <typename T,
+ typename = typename std::enable_if<
+ (sizeof(IsContainerTest<T>(0)) == sizeof(IsContainer)) &&
+ !IsRecursiveContainer<T>::value>::type>
+ static void PrintValue(const T& container, std::ostream* os) {
+ const size_t kMaxCount = 32; // The maximum number of elements to print.
+ *os << '{';
+ size_t count = 0;
+ for (auto&& elem : container) {
+ if (count > 0) {
+ *os << ',';
+ if (count == kMaxCount) { // Enough has been printed.
+ *os << " ...";
+ break;
+ }
+ }
+ *os << ' ';
+ // We cannot call PrintTo(elem, os) here as PrintTo() doesn't
+ // handle `elem` being a native array.
+ internal::UniversalPrint(elem, os);
+ ++count;
+ }
-// Prints the given number of bytes in the given object to the given
-// ostream.
-GTEST_API_ void PrintBytesInObjectTo(const unsigned char* obj_bytes,
- size_t count,
- ::std::ostream* os);
+ if (count > 0) {
+ *os << ' ';
+ }
+ *os << '}';
+ }
+};
-// For selecting which printer to use when a given type has neither <<
-// nor PrintTo().
-enum TypeKind {
- kProtobuf, // a protobuf type
- kConvertibleToInteger, // a type implicitly convertible to BiggestInt
- // (e.g. a named or unnamed enum type)
-#if GTEST_HAS_ABSL
- kConvertibleToStringView, // a type implicitly convertible to
- // absl::string_view
-#endif
- kOtherType // anything else
+// Used to print a pointer that is neither a char pointer nor a member
+// pointer, when the user doesn't define PrintTo() for it. (A member
+// variable pointer or member function pointer doesn't really point to
+// a location in the address space. Their representation is
+// implementation-defined. Therefore they will be printed as raw
+// bytes.)
+struct FunctionPointerPrinter {
+ template <typename T, typename = typename std::enable_if<
+ std::is_function<T>::value>::type>
+ static void PrintValue(T* p, ::std::ostream* os) {
+ if (p == nullptr) {
+ *os << "NULL";
+ } else {
+ // T is a function type, so '*os << p' doesn't do what we want
+ // (it just prints p as bool). We want to print p as a const
+ // void*.
+ *os << reinterpret_cast<const void*>(p);
+ }
+ }
};
-// TypeWithoutFormatter<T, kTypeKind>::PrintValue(value, os) is called
-// by the universal printer to print a value of type T when neither
-// operator<< nor PrintTo() is defined for T, where kTypeKind is the
-// "kind" of T as defined by enum TypeKind.
-template <typename T, TypeKind kTypeKind>
-class TypeWithoutFormatter {
- public:
- // This default version is called when kTypeKind is kOtherType.
+struct PointerPrinter {
+ template <typename T>
+ static void PrintValue(T* p, ::std::ostream* os) {
+ if (p == nullptr) {
+ *os << "NULL";
+ } else {
+ // T is not a function type. We just call << to print p,
+ // relying on ADL to pick up user-defined << for their pointer
+ // types, if any.
+ *os << p;
+ }
+ }
+};
+
+namespace internal_stream_operator_without_lexical_name_lookup {
+
+// The presence of an operator<< here will terminate lexical scope lookup
+// straight away (even though it cannot be a match because of its argument
+// types). Thus, the two operator<< calls in StreamPrinter will find only ADL
+// candidates.
+struct LookupBlocker {};
+void operator<<(LookupBlocker, LookupBlocker);
+
+struct StreamPrinter {
+ template <typename T,
+ // Don't accept member pointers here. We'd print them via implicit
+ // conversion to bool, which isn't useful.
+ typename = typename std::enable_if<
+ !std::is_member_pointer<T>::value>::type,
+ // Only accept types for which we can find a streaming operator via
+ // ADL (possibly involving implicit conversions).
+ typename = decltype(std::declval<std::ostream&>()
+ << std::declval<const T&>())>
static void PrintValue(const T& value, ::std::ostream* os) {
- PrintBytesInObjectTo(static_cast<const unsigned char*>(
- reinterpret_cast<const void*>(&value)),
- sizeof(value), os);
+ // Call streaming operator found by ADL, possibly with implicit conversions
+ // of the arguments.
+ *os << value;
}
};
-// We print a protobuf using its ShortDebugString() when the string
-// doesn't exceed this many characters; otherwise we print it using
-// DebugString() for better readability.
-const size_t kProtobufOneLinerMaxLength = 50;
+} // namespace internal_stream_operator_without_lexical_name_lookup
-template <typename T>
-class TypeWithoutFormatter<T, kProtobuf> {
- public:
+struct ProtobufPrinter {
+ // We print a protobuf using its ShortDebugString() when the string
+ // doesn't exceed this many characters; otherwise we print it using
+ // DebugString() for better readability.
+ static const size_t kProtobufOneLinerMaxLength = 50;
+
+ template <typename T,
+ typename = typename std::enable_if<
+ internal::HasDebugStringAndShortDebugString<T>::value>::type>
static void PrintValue(const T& value, ::std::ostream* os) {
std::string pretty_str = value.ShortDebugString();
if (pretty_str.length() > kProtobufOneLinerMaxLength) {
}
};
-template <typename T>
-class TypeWithoutFormatter<T, kConvertibleToInteger> {
- public:
+struct ConvertibleToIntegerPrinter {
// Since T has no << operator or PrintTo() but can be implicitly
// converted to BiggestInt, we print it as a BiggestInt.
//
// case printing it as an integer is the desired behavior. In case
// T is not an enum, printing it as an integer is the best we can do
// given that it has no user-defined printer.
- static void PrintValue(const T& value, ::std::ostream* os) {
- const internal::BiggestInt kBigInt = value;
- *os << kBigInt;
+ static void PrintValue(internal::BiggestInt value, ::std::ostream* os) {
+ *os << value;
}
};
-#if GTEST_HAS_ABSL
-template <typename T>
-class TypeWithoutFormatter<T, kConvertibleToStringView> {
- public:
- // Since T has neither operator<< nor PrintTo() but can be implicitly
- // converted to absl::string_view, we print it as a absl::string_view.
- //
- // Note: the implementation is further below, as it depends on
- // internal::PrintTo symbol which is defined later in the file.
- static void PrintValue(const T& value, ::std::ostream* os);
-};
-#endif
-
-// Prints the given value to the given ostream. If the value is a
-// protocol message, its debug string is printed; if it's an enum or
-// of a type implicitly convertible to BiggestInt, it's printed as an
-// integer; otherwise the bytes in the value are printed. This is
-// what UniversalPrinter<T>::Print() does when it knows nothing about
-// type T and T has neither << operator nor PrintTo().
-//
-// A user can override this behavior for a class type Foo by defining
-// a << operator in the namespace where Foo is defined.
-//
-// We put this operator in namespace 'internal2' instead of 'internal'
-// to simplify the implementation, as much code in 'internal' needs to
-// use << in STL, which would conflict with our own << were it defined
-// in 'internal'.
-//
-// Note that this operator<< takes a generic std::basic_ostream<Char,
-// CharTraits> type instead of the more restricted std::ostream. If
-// we define it to take an std::ostream instead, we'll get an
-// "ambiguous overloads" compiler error when trying to print a type
-// Foo that supports streaming to std::basic_ostream<Char,
-// CharTraits>, as the compiler cannot tell whether
-// operator<<(std::ostream&, const T&) or
-// operator<<(std::basic_stream<Char, CharTraits>, const Foo&) is more
-// specific.
-template <typename Char, typename CharTraits, typename T>
-::std::basic_ostream<Char, CharTraits>& operator<<(
- ::std::basic_ostream<Char, CharTraits>& os, const T& x) {
- TypeWithoutFormatter<T, (internal::IsAProtocolMessage<T>::value
- ? kProtobuf
- : internal::ImplicitlyConvertible<
- const T&, internal::BiggestInt>::value
- ? kConvertibleToInteger
- :
-#if GTEST_HAS_ABSL
- internal::ImplicitlyConvertible<
- const T&, absl::string_view>::value
- ? kConvertibleToStringView
- :
+struct ConvertibleToStringViewPrinter {
+#if GTEST_INTERNAL_HAS_STRING_VIEW
+ static void PrintValue(internal::StringView value, ::std::ostream* os) {
+ internal::UniversalPrint(value, os);
+ }
#endif
- kOtherType)>::PrintValue(x, &os);
- return os;
-}
+};
-} // namespace internal2
-} // namespace testing
-// This namespace MUST NOT BE NESTED IN ::testing, or the name look-up
-// magic needed for implementing UniversalPrinter won't work.
-namespace testing_internal {
+// Prints the given number of bytes in the given object to the given
+// ostream.
+GTEST_API_ void PrintBytesInObjectTo(const unsigned char* obj_bytes,
+ size_t count,
+ ::std::ostream* os);
+struct RawBytesPrinter {
+ // SFINAE on `sizeof` to make sure we have a complete type.
+ template <typename T, size_t = sizeof(T)>
+ static void PrintValue(const T& value, ::std::ostream* os) {
+ PrintBytesInObjectTo(
+ static_cast<const unsigned char*>(
+ // Load bearing cast to void* to support iOS
+ reinterpret_cast<const void*>(std::addressof(value))),
+ sizeof(value), os);
+ }
+};
-// Used to print a value that is not an STL-style container when the
-// user doesn't define PrintTo() for it.
-template <typename T>
-void DefaultPrintNonContainerTo(const T& value, ::std::ostream* os) {
- // With the following statement, during unqualified name lookup,
- // testing::internal2::operator<< appears as if it was declared in
- // the nearest enclosing namespace that contains both
- // ::testing_internal and ::testing::internal2, i.e. the global
- // namespace. For more details, refer to the C++ Standard section
- // 7.3.4-1 [namespace.udir]. This allows us to fall back onto
- // testing::internal2::operator<< in case T doesn't come with a <<
- // operator.
- //
- // We cannot write 'using ::testing::internal2::operator<<;', which
- // gcc 3.3 fails to compile due to a compiler bug.
- using namespace ::testing::internal2; // NOLINT
+struct FallbackPrinter {
+ template <typename T>
+ static void PrintValue(const T&, ::std::ostream* os) {
+ *os << "(incomplete type)";
+ }
+};
- // Assuming T is defined in namespace foo, in the next statement,
- // the compiler will consider all of:
- //
- // 1. foo::operator<< (thanks to Koenig look-up),
- // 2. ::operator<< (as the current namespace is enclosed in ::),
- // 3. testing::internal2::operator<< (thanks to the using statement above).
- //
- // The operator<< whose type matches T best will be picked.
- //
- // We deliberately allow #2 to be a candidate, as sometimes it's
- // impossible to define #1 (e.g. when foo is ::std, defining
- // anything in it is undefined behavior unless you are a compiler
- // vendor.).
- *os << value;
-}
+// Try every printer in order and return the first one that works.
+template <typename T, typename E, typename Printer, typename... Printers>
+struct FindFirstPrinter : FindFirstPrinter<T, E, Printers...> {};
-} // namespace testing_internal
+template <typename T, typename Printer, typename... Printers>
+struct FindFirstPrinter<
+ T, decltype(Printer::PrintValue(std::declval<const T&>(), nullptr)),
+ Printer, Printers...> {
+ using type = Printer;
+};
-namespace testing {
-namespace internal {
+// Select the best printer in the following order:
+// - Print containers (they have begin/end/etc).
+// - Print function pointers.
+// - Print object pointers.
+// - Use the stream operator, if available.
+// - Print protocol buffers.
+// - Print types convertible to BiggestInt.
+// - Print types convertible to StringView, if available.
+// - Fallback to printing the raw bytes of the object.
+template <typename T>
+void PrintWithFallback(const T& value, ::std::ostream* os) {
+ using Printer = typename FindFirstPrinter<
+ T, void, ContainerPrinter, FunctionPointerPrinter, PointerPrinter,
+ internal_stream_operator_without_lexical_name_lookup::StreamPrinter,
+ ProtobufPrinter, ConvertibleToIntegerPrinter,
+ ConvertibleToStringViewPrinter, RawBytesPrinter, FallbackPrinter>::type;
+ Printer::PrintValue(value, os);
+}
// FormatForComparison<ToPrint, OtherOperand>::Format(value) formats a
// value of type ToPrint that is an operand of a comparison assertion
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);
+#ifdef __cpp_lib_char8_t
+GTEST_IMPL_FORMAT_C_STRING_AS_POINTER_(char8_t);
+GTEST_IMPL_FORMAT_C_STRING_AS_POINTER_(const char8_t);
+#endif
+GTEST_IMPL_FORMAT_C_STRING_AS_POINTER_(char16_t);
+GTEST_IMPL_FORMAT_C_STRING_AS_POINTER_(const char16_t);
+GTEST_IMPL_FORMAT_C_STRING_AS_POINTER_(char32_t);
+GTEST_IMPL_FORMAT_C_STRING_AS_POINTER_(const char32_t);
#undef GTEST_IMPL_FORMAT_C_STRING_AS_POINTER_
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);
+#ifdef __cpp_char8_t
+GTEST_IMPL_FORMAT_C_STRING_AS_STRING_(char8_t, ::std::u8string);
+GTEST_IMPL_FORMAT_C_STRING_AS_STRING_(const char8_t, ::std::u8string);
#endif
+GTEST_IMPL_FORMAT_C_STRING_AS_STRING_(char16_t, ::std::u16string);
+GTEST_IMPL_FORMAT_C_STRING_AS_STRING_(const char16_t, ::std::u16string);
+GTEST_IMPL_FORMAT_C_STRING_AS_STRING_(char32_t, ::std::u32string);
+GTEST_IMPL_FORMAT_C_STRING_AS_STRING_(const char32_t, ::std::u32string);
#if GTEST_HAS_STD_WSTRING
GTEST_IMPL_FORMAT_C_STRING_AS_STRING_(wchar_t, ::std::wstring);
template <typename T>
class UniversalPrinter;
-template <typename T>
-void UniversalPrint(const T& value, ::std::ostream* os);
-
-enum DefaultPrinterType {
- kPrintContainer,
- kPrintPointer,
- kPrintFunctionPointer,
- kPrintOther,
-};
-template <DefaultPrinterType type> struct WrapPrinterType {};
-
-// Used to print an STL-style container when the user doesn't define
-// a PrintTo() for it.
-template <typename C>
-void DefaultPrintTo(WrapPrinterType<kPrintContainer> /* dummy */,
- const C& container, ::std::ostream* os) {
- const size_t kMaxCount = 32; // The maximum number of elements to print.
- *os << '{';
- size_t count = 0;
- for (typename C::const_iterator it = container.begin();
- it != container.end(); ++it, ++count) {
- if (count > 0) {
- *os << ',';
- if (count == kMaxCount) { // Enough has been printed.
- *os << " ...";
- break;
- }
- }
- *os << ' ';
- // We cannot call PrintTo(*it, os) here as PrintTo() doesn't
- // handle *it being a native array.
- internal::UniversalPrint(*it, os);
- }
-
- if (count > 0) {
- *os << ' ';
- }
- *os << '}';
-}
-
-// Used to print a pointer that is neither a char pointer nor a member
-// pointer, when the user doesn't define PrintTo() for it. (A member
-// variable pointer or member function pointer doesn't really point to
-// a location in the address space. Their representation is
-// implementation-defined. Therefore they will be printed as raw
-// bytes.)
-template <typename T>
-void DefaultPrintTo(WrapPrinterType<kPrintPointer> /* dummy */,
- T* p, ::std::ostream* os) {
- if (p == NULL) {
- *os << "NULL";
- } else {
- // T is not a function type. We just call << to print p,
- // relying on ADL to pick up user-defined << for their pointer
- // types, if any.
- *os << p;
- }
-}
-template <typename T>
-void DefaultPrintTo(WrapPrinterType<kPrintFunctionPointer> /* dummy */,
- T* p, ::std::ostream* os) {
- if (p == NULL) {
- *os << "NULL";
- } else {
- // T is a function type, so '*os << p' doesn't do what we want
- // (it just prints p as bool). We want to print p as a const
- // void*.
- *os << reinterpret_cast<const void*>(p);
- }
-}
-
-// Used to print a non-container, non-pointer value when the user
-// doesn't define PrintTo() for it.
-template <typename T>
-void DefaultPrintTo(WrapPrinterType<kPrintOther> /* dummy */,
- const T& value, ::std::ostream* os) {
- ::testing_internal::DefaultPrintNonContainerTo(value, os);
-}
-
// Prints the given value using the << operator if it has one;
// otherwise prints the bytes in it. This is what
// UniversalPrinter<T>::Print() does when PrintTo() is not specialized
// wants).
template <typename T>
void PrintTo(const T& value, ::std::ostream* os) {
- // DefaultPrintTo() is overloaded. The type of its first argument
- // determines which version will be picked.
- //
- // Note that we check for container types here, prior to we check
- // for protocol message types in our operator<<. The rationale is:
- //
- // For protocol messages, we want to give people a chance to
- // override Google Mock's format by defining a PrintTo() or
- // operator<<. For STL containers, other formats can be
- // incompatible with Google Mock's format for the container
- // elements; therefore we check for container types here to ensure
- // that our format is used.
- //
- // Note that MSVC and clang-cl do allow an implicit conversion from
- // pointer-to-function to pointer-to-object, but clang-cl warns on it.
- // So don't use ImplicitlyConvertible if it can be helped since it will
- // cause this warning, and use a separate overload of DefaultPrintTo for
- // function pointers so that the `*os << p` in the object pointer overload
- // doesn't cause that warning either.
- DefaultPrintTo(
- WrapPrinterType <
- (sizeof(IsContainerTest<T>(0)) == sizeof(IsContainer)) &&
- !IsRecursiveContainer<T>::value
- ? kPrintContainer
- : !is_pointer<T>::value
- ? kPrintOther
-#if GTEST_LANG_CXX11
- : std::is_function<typename std::remove_pointer<T>::type>::value
-#else
- : !internal::ImplicitlyConvertible<T, const void*>::value
-#endif
- ? kPrintFunctionPointer
- : kPrintPointer > (),
- value, os);
+ internal::PrintWithFallback(value, os);
}
// The following list of PrintTo() overloads tells
// is implemented as an unsigned type.
GTEST_API_ void PrintTo(wchar_t wc, ::std::ostream* os);
+GTEST_API_ void PrintTo(char32_t c, ::std::ostream* os);
+inline void PrintTo(char16_t c, ::std::ostream* os) {
+ PrintTo(ImplicitCast_<char32_t>(c), os);
+}
+#ifdef __cpp_char8_t
+inline void PrintTo(char8_t c, ::std::ostream* os) {
+ PrintTo(ImplicitCast_<char32_t>(c), os);
+}
+#endif
+
// Overloads for C strings.
GTEST_API_ void PrintTo(const char* s, ::std::ostream* os);
inline void PrintTo(char* s, ::std::ostream* os) {
inline void PrintTo(unsigned char* s, ::std::ostream* os) {
PrintTo(ImplicitCast_<const void*>(s), os);
}
+#ifdef __cpp_char8_t
+// Overloads for u8 strings.
+GTEST_API_ void PrintTo(const char8_t* s, ::std::ostream* os);
+inline void PrintTo(char8_t* s, ::std::ostream* os) {
+ PrintTo(ImplicitCast_<const char8_t*>(s), os);
+}
+#endif
+// Overloads for u16 strings.
+GTEST_API_ void PrintTo(const char16_t* s, ::std::ostream* os);
+inline void PrintTo(char16_t* s, ::std::ostream* os) {
+ PrintTo(ImplicitCast_<const char16_t*>(s), os);
+}
+// Overloads for u32 strings.
+GTEST_API_ void PrintTo(const char32_t* s, ::std::ostream* os);
+inline void PrintTo(char32_t* s, ::std::ostream* os) {
+ PrintTo(ImplicitCast_<const char32_t*>(s), os);
+}
// MSVC can be configured to define wchar_t as a typedef of unsigned
// short. It defines _NATIVE_WCHAR_T_DEFINED when wchar_t is a native
}
}
-// Overloads for ::string and ::std::string.
-#if GTEST_HAS_GLOBAL_STRING
-GTEST_API_ void PrintStringTo(const ::string&s, ::std::ostream* os);
-inline void PrintTo(const ::string& s, ::std::ostream* os) {
- PrintStringTo(s, os);
-}
-#endif // GTEST_HAS_GLOBAL_STRING
-
+// Overloads for ::std::string.
GTEST_API_ void PrintStringTo(const ::std::string&s, ::std::ostream* os);
inline void PrintTo(const ::std::string& s, ::std::ostream* os) {
PrintStringTo(s, os);
}
-// Overloads for ::wstring and ::std::wstring.
-#if GTEST_HAS_GLOBAL_WSTRING
-GTEST_API_ void PrintWideStringTo(const ::wstring&s, ::std::ostream* os);
-inline void PrintTo(const ::wstring& s, ::std::ostream* os) {
- PrintWideStringTo(s, os);
+// Overloads for ::std::u8string
+#ifdef __cpp_char8_t
+GTEST_API_ void PrintU8StringTo(const ::std::u8string& s, ::std::ostream* os);
+inline void PrintTo(const ::std::u8string& s, ::std::ostream* os) {
+ PrintU8StringTo(s, os);
+}
+#endif
+
+// Overloads for ::std::u16string
+GTEST_API_ void PrintU16StringTo(const ::std::u16string& s, ::std::ostream* os);
+inline void PrintTo(const ::std::u16string& s, ::std::ostream* os) {
+ PrintU16StringTo(s, os);
+}
+
+// Overloads for ::std::u32string
+GTEST_API_ void PrintU32StringTo(const ::std::u32string& s, ::std::ostream* os);
+inline void PrintTo(const ::std::u32string& s, ::std::ostream* os) {
+ PrintU32StringTo(s, os);
}
-#endif // GTEST_HAS_GLOBAL_WSTRING
+// Overloads for ::std::wstring.
#if GTEST_HAS_STD_WSTRING
GTEST_API_ void PrintWideStringTo(const ::std::wstring&s, ::std::ostream* os);
inline void PrintTo(const ::std::wstring& s, ::std::ostream* os) {
}
#endif // GTEST_HAS_STD_WSTRING
-#if GTEST_HAS_ABSL
-// Overload for absl::string_view.
-inline void PrintTo(absl::string_view sp, ::std::ostream* os) {
+#if GTEST_INTERNAL_HAS_STRING_VIEW
+// Overload for internal::StringView.
+inline void PrintTo(internal::StringView sp, ::std::ostream* os) {
PrintTo(::std::string(sp), os);
}
-#endif // GTEST_HAS_ABSL
+#endif // GTEST_INTERNAL_HAS_STRING_VIEW
-#if GTEST_LANG_CXX11
inline void PrintTo(std::nullptr_t, ::std::ostream* os) { *os << "(nullptr)"; }
-#endif // GTEST_LANG_CXX11
-#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
-// regardless of whether tr1::tuple is implemented using the
-// non-standard variadic template feature or not.
-
-inline void PrintTo(const ::std::tr1::tuple<>& t, ::std::ostream* os) {
- PrintTupleTo(t, os);
-}
-
-template <typename T1>
-void PrintTo(const ::std::tr1::tuple<T1>& t, ::std::ostream* os) {
- PrintTupleTo(t, os);
+void PrintTo(std::reference_wrapper<T> ref, ::std::ostream* os) {
+ UniversalPrinter<T&>::Print(ref.get(), os);
}
-template <typename T1, typename T2>
-void PrintTo(const ::std::tr1::tuple<T1, T2>& t, ::std::ostream* os) {
- PrintTupleTo(t, os);
-}
-
-template <typename T1, typename T2, typename T3>
-void PrintTo(const ::std::tr1::tuple<T1, T2, T3>& t, ::std::ostream* os) {
- PrintTupleTo(t, os);
-}
-
-template <typename T1, typename T2, typename T3, typename T4>
-void PrintTo(const ::std::tr1::tuple<T1, T2, T3, T4>& t, ::std::ostream* os) {
- PrintTupleTo(t, os);
-}
-
-template <typename T1, typename T2, typename T3, typename T4, typename T5>
-void PrintTo(const ::std::tr1::tuple<T1, T2, T3, T4, T5>& t,
- ::std::ostream* os) {
- PrintTupleTo(t, os);
+inline const void* VoidifyPointer(const void* p) { return p; }
+inline const void* VoidifyPointer(volatile const void* p) {
+ return const_cast<const void*>(p);
}
-template <typename T1, typename T2, typename T3, typename T4, typename T5,
- typename T6>
-void PrintTo(const ::std::tr1::tuple<T1, T2, T3, T4, T5, T6>& t,
- ::std::ostream* os) {
- PrintTupleTo(t, os);
+template <typename T, typename Ptr>
+void PrintSmartPointer(const Ptr& ptr, std::ostream* os, char) {
+ if (ptr == nullptr) {
+ *os << "(nullptr)";
+ } else {
+ // We can't print the value. Just print the pointer..
+ *os << "(" << (VoidifyPointer)(ptr.get()) << ")";
+ }
}
-
-template <typename T1, typename T2, typename T3, typename T4, typename T5,
- typename T6, typename T7>
-void PrintTo(const ::std::tr1::tuple<T1, T2, T3, T4, T5, T6, T7>& t,
- ::std::ostream* os) {
- PrintTupleTo(t, os);
+template <typename T, typename Ptr,
+ typename = typename std::enable_if<!std::is_void<T>::value &&
+ !std::is_array<T>::value>::type>
+void PrintSmartPointer(const Ptr& ptr, std::ostream* os, int) {
+ if (ptr == nullptr) {
+ *os << "(nullptr)";
+ } else {
+ *os << "(ptr = " << (VoidifyPointer)(ptr.get()) << ", value = ";
+ UniversalPrinter<T>::Print(*ptr, os);
+ *os << ")";
+ }
}
-template <typename T1, typename T2, typename T3, typename T4, typename T5,
- typename T6, typename T7, typename T8>
-void PrintTo(const ::std::tr1::tuple<T1, T2, T3, T4, T5, T6, T7, T8>& t,
- ::std::ostream* os) {
- PrintTupleTo(t, os);
+template <typename T, typename D>
+void PrintTo(const std::unique_ptr<T, D>& ptr, std::ostream* os) {
+ (PrintSmartPointer<T>)(ptr, os, 0);
}
-template <typename T1, typename T2, typename T3, typename T4, typename T5,
- typename T6, typename T7, typename T8, typename T9>
-void PrintTo(const ::std::tr1::tuple<T1, T2, T3, T4, T5, T6, T7, T8, T9>& t,
- ::std::ostream* os) {
- PrintTupleTo(t, os);
+template <typename T>
+void PrintTo(const std::shared_ptr<T>& ptr, std::ostream* os) {
+ (PrintSmartPointer<T>)(ptr, os, 0);
}
-template <typename T1, typename T2, typename T3, typename T4, typename T5,
- typename T6, typename T7, typename T8, typename T9, typename T10>
-void PrintTo(
- const ::std::tr1::tuple<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10>& t,
- ::std::ostream* os) {
- PrintTupleTo(t, os);
+// Helper function for printing a tuple. T must be instantiated with
+// a tuple type.
+template <typename T>
+void PrintTupleTo(const T&, std::integral_constant<size_t, 0>,
+ ::std::ostream*) {}
+
+template <typename T, size_t I>
+void PrintTupleTo(const T& t, std::integral_constant<size_t, I>,
+ ::std::ostream* os) {
+ PrintTupleTo(t, std::integral_constant<size_t, I - 1>(), os);
+ GTEST_INTENTIONAL_CONST_COND_PUSH_()
+ if (I > 1) {
+ GTEST_INTENTIONAL_CONST_COND_POP_()
+ *os << ", ";
+ }
+ UniversalPrinter<typename std::tuple_element<I - 1, T>::type>::Print(
+ std::get<I - 1>(t), os);
}
-#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);
+ *os << "(";
+ PrintTupleTo(t, std::integral_constant<size_t, sizeof...(Types)>(), os);
+ *os << ")";
}
-#endif // GTEST_HAS_STD_TUPLE_
// Overload for std::pair.
template <typename T1, typename T2>
GTEST_DISABLE_MSC_WARNINGS_POP_()
};
-#if GTEST_HAS_ABSL
+// Remove any const-qualifiers before passing a type to UniversalPrinter.
+template <typename T>
+class UniversalPrinter<const T> : public UniversalPrinter<T> {};
+
+#if GTEST_INTERNAL_HAS_ANY
-// Printer for absl::optional
+// Printer for std::any / absl::any
+
+template <>
+class UniversalPrinter<Any> {
+ public:
+ static void Print(const Any& value, ::std::ostream* os) {
+ if (value.has_value()) {
+ *os << "value of type " << GetTypeName(value);
+ } else {
+ *os << "no value";
+ }
+ }
+
+ private:
+ static std::string GetTypeName(const Any& value) {
+#if GTEST_HAS_RTTI
+ return internal::GetTypeName(value.type());
+#else
+ static_cast<void>(value); // possibly unused
+ return "<unknown_type>";
+#endif // GTEST_HAS_RTTI
+ }
+};
+
+#endif // GTEST_INTERNAL_HAS_ANY
+
+#if GTEST_INTERNAL_HAS_OPTIONAL
+
+// Printer for std::optional / absl::optional
template <typename T>
-class UniversalPrinter<::absl::optional<T>> {
+class UniversalPrinter<Optional<T>> {
public:
- static void Print(const ::absl::optional<T>& value, ::std::ostream* os) {
+ static void Print(const Optional<T>& value, ::std::ostream* os) {
*os << '(';
if (!value) {
*os << "nullopt";
}
};
-// Printer for absl::variant
+#endif // GTEST_INTERNAL_HAS_OPTIONAL
+
+#if GTEST_INTERNAL_HAS_VARIANT
+
+// Printer for std::variant / absl::variant
template <typename... T>
-class UniversalPrinter<::absl::variant<T...>> {
+class UniversalPrinter<Variant<T...>> {
public:
- static void Print(const ::absl::variant<T...>& value, ::std::ostream* os) {
+ static void Print(const Variant<T...>& value, ::std::ostream* os) {
*os << '(';
- absl::visit(Visitor{os}, value);
+#if GTEST_HAS_ABSL
+ absl::visit(Visitor{os, value.index()}, value);
+#else
+ std::visit(Visitor{os, value.index()}, value);
+#endif // GTEST_HAS_ABSL
*os << ')';
}
struct Visitor {
template <typename U>
void operator()(const U& u) const {
- *os << "'" << GetTypeName<U>() << "' with value ";
+ *os << "'" << GetTypeName<U>() << "(index = " << index
+ << ")' with value ";
UniversalPrint(u, os);
}
::std::ostream* os;
+ std::size_t index;
};
};
-#endif // GTEST_HAS_ABSL
+#endif // GTEST_INTERNAL_HAS_VARIANT
// UniversalPrintArray(begin, len, os) prints an array of 'len'
// elements, starting at address 'begin'.
// If the array has more than kThreshold elements, we'll have to
// omit some details by printing only the first and the last
// kChunkSize elements.
- // FIXME: let the user control the threshold using a flag.
if (len <= kThreshold) {
PrintRawArrayTo(begin, len, os);
} else {
GTEST_API_ void UniversalPrintArray(
const char* begin, size_t len, ::std::ostream* os);
+#ifdef __cpp_char8_t
+// This overload prints a (const) char8_t array compactly.
+GTEST_API_ void UniversalPrintArray(const char8_t* begin, size_t len,
+ ::std::ostream* os);
+#endif
+
+// This overload prints a (const) char16_t array compactly.
+GTEST_API_ void UniversalPrintArray(const char16_t* begin, size_t len,
+ ::std::ostream* os);
+
+// This overload prints a (const) char32_t array compactly.
+GTEST_API_ void UniversalPrintArray(const char32_t* 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);
class UniversalTersePrinter<const char*> {
public:
static void Print(const char* str, ::std::ostream* os) {
- if (str == NULL) {
+ if (str == nullptr) {
*os << "NULL";
} else {
UniversalPrint(std::string(str), os);
}
};
template <>
-class UniversalTersePrinter<char*> {
+class UniversalTersePrinter<char*> : public UniversalTersePrinter<const char*> {
+};
+
+#ifdef __cpp_char8_t
+template <>
+class UniversalTersePrinter<const char8_t*> {
public:
- static void Print(char* str, ::std::ostream* os) {
- UniversalTersePrinter<const char*>::Print(str, os);
+ static void Print(const char8_t* str, ::std::ostream* os) {
+ if (str == nullptr) {
+ *os << "NULL";
+ } else {
+ UniversalPrint(::std::u8string(str), os);
+ }
}
};
+template <>
+class UniversalTersePrinter<char8_t*>
+ : public UniversalTersePrinter<const char8_t*> {};
+#endif
+
+template <>
+class UniversalTersePrinter<const char16_t*> {
+ public:
+ static void Print(const char16_t* str, ::std::ostream* os) {
+ if (str == nullptr) {
+ *os << "NULL";
+ } else {
+ UniversalPrint(::std::u16string(str), os);
+ }
+ }
+};
+template <>
+class UniversalTersePrinter<char16_t*>
+ : public UniversalTersePrinter<const char16_t*> {};
+
+template <>
+class UniversalTersePrinter<const char32_t*> {
+ public:
+ static void Print(const char32_t* str, ::std::ostream* os) {
+ if (str == nullptr) {
+ *os << "NULL";
+ } else {
+ UniversalPrint(::std::u32string(str), os);
+ }
+ }
+};
+template <>
+class UniversalTersePrinter<char32_t*>
+ : public UniversalTersePrinter<const char32_t*> {};
#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) {
+ if (str == nullptr) {
*os << "NULL";
} else {
UniversalPrint(::std::wstring(str), os);
typedef ::std::vector< ::std::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<static_cast<int>(I), Tuple> {
- };
-
- template <size_t I>
- static typename AddReference<const typename ::std::tr1::tuple_element<
- static_cast<int>(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 {
- // 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);
- 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,
// 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(TuplePolicy<Tuple>::template get<N - 1>(t), &ss);
- strings->push_back(ss.str());
- }
-};
-
-// Base case.
-template <>
-struct TuplePrefixPrinter<0> {
- template <typename Tuple>
- static void PrintPrefixTo(const Tuple&, ::std::ostream*) {}
-
- template <typename Tuple>
- static void TersePrintPrefixToStrings(const Tuple&, Strings*) {}
-};
-
-// 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<TuplePolicy<Tuple>::tuple_size>::PrintPrefixTo(t, os);
- *os << ")";
+void TersePrintPrefixToStrings(const Tuple&, std::integral_constant<size_t, 0>,
+ Strings*) {}
+template <typename Tuple, size_t I>
+void TersePrintPrefixToStrings(const Tuple& t,
+ std::integral_constant<size_t, I>,
+ Strings* strings) {
+ TersePrintPrefixToStrings(t, std::integral_constant<size_t, I - 1>(),
+ strings);
+ ::std::stringstream ss;
+ UniversalTersePrint(std::get<I - 1>(t), &ss);
+ strings->push_back(ss.str());
}
// Prints the fields of a tuple tersely to a string vector, one
template <typename Tuple>
Strings UniversalTersePrintTupleFieldsToStrings(const Tuple& value) {
Strings result;
- TuplePrefixPrinter<TuplePolicy<Tuple>::tuple_size>::
- TersePrintPrefixToStrings(value, &result);
+ TersePrintPrefixToStrings(
+ value, std::integral_constant<size_t, std::tuple_size<Tuple>::value>(),
+ &result);
return result;
}
-#endif // GTEST_HAS_TR1_TUPLE || GTEST_HAS_STD_TUPLE_
} // namespace internal
-#if GTEST_HAS_ABSL
-namespace internal2 {
-template <typename T>
-void TypeWithoutFormatter<T, kConvertibleToStringView>::PrintValue(
- const T& value, ::std::ostream* os) {
- internal::PrintTo(absl::string_view(value), os);
-}
-} // namespace internal2
-#endif
-
template <typename T>
::std::string PrintToString(const T& value) {
::std::stringstream ss;
// declarations from this file.
#include "gtest/internal/custom/gtest-printers.h"
-#endif // GTEST_INCLUDE_GTEST_GTEST_PRINTERS_H_
+#endif // GOOGLETEST_INCLUDE_GTEST_GTEST_PRINTERS_H_
biod.pnpi.spb.ru / alexxy / gromacs.git / blobdiff