X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/de4983f3236c2043479abb21857aca958a7b61f0..a4f6fe43c33bd7933645d110ad2719871dab043d:/include/wx/strvararg.h diff --git a/include/wx/strvararg.h b/include/wx/strvararg.h index 112d11827e..8f2d16551e 100644 --- a/include/wx/strvararg.h +++ b/include/wx/strvararg.h @@ -22,6 +22,16 @@ #include "wx/buffer.h" #include "wx/unichar.h" +#if defined(HAVE_TYPE_TRAITS) + #include +#elif defined(HAVE_TR1_TYPE_TRAITS) + #ifdef __VISUALC__ + #include + #else + #include + #endif +#endif + class WXDLLIMPEXP_FWD_BASE wxCStrData; class WXDLLIMPEXP_FWD_BASE wxString; @@ -140,12 +150,46 @@ public: wxFormatString(const wxScopedWCharBuffer& str) : m_wchar(str), m_str(NULL), m_cstr(NULL) {} - + // Possible argument types. These are or-combinable for wxASSERT_ARG_TYPE + // convenience. Some of the values are or-combined with another value, this + // expresses "supertypes" for use with wxASSERT_ARG_TYPE masks. For example, + // a char* string is also a pointer and an integer is also a char. enum ArgumentType { - Arg_Char, // character as char + Arg_Char = 0x0001, // character as char %c + Arg_Pointer = 0x0002, // %p + Arg_String = 0x0004 | Arg_Pointer, // any form of string (%s and %p too) + + Arg_Int = 0x0008 | Arg_Char, // (ints can be used with %c) +#if SIZEOF_INT == SIZEOF_LONG + Arg_LongInt = Arg_Int, +#else + Arg_LongInt = 0x0010, +#endif +#if defined(SIZEOF_LONG_LONG) && SIZEOF_LONG_LONG == SIZEOF_LONG + Arg_LongLongInt = Arg_LongInt, +#elif defined(wxLongLong_t) + Arg_LongLongInt = 0x0020, +#endif + + Arg_Double = 0x0040, + Arg_LongDouble = 0x0080, + +#if defined(wxSIZE_T_IS_UINT) + Arg_Size_t = Arg_Int, +#elif defined(wxSIZE_T_IS_ULONG) + Arg_Size_t = Arg_LongInt, +#elif defined(SIZEOF_LONG_LONG) && SIZEOF_SIZE_T == SIZEOF_LONG_LONG + Arg_Size_t = Arg_LongLongInt, +#else + Arg_Size_t = 0x0100, +#endif + + Arg_IntPtr = 0x0200, // %n -- store # of chars written + Arg_ShortIntPtr = 0x0400, + Arg_LongIntPtr = 0x0800, - Arg_Other // something else, for example int for %d + Arg_Unknown = 0x8000 // unrecognized specifier (likely error) }; // returns the type of format specifier for n-th variadic argument (this is @@ -163,7 +207,7 @@ public: { return const_cast(this)->AsChar(); } private: // InputAsChar() returns the value passed to ctor, only converted - // to char, while AsChar() takes the the string returned by InputAsChar() + // to char, while AsChar() takes the string returned by InputAsChar() // and does format string conversion on it as well (and similarly for // ..AsWChar() below) const char* InputAsChar(); @@ -247,11 +291,150 @@ template<> struct wxFormatStringArgumentFinder : public wxFormatStringArgumentFinder {}; +template<> +struct wxFormatStringArgumentFinder + : public wxFormatStringArgumentFinder {}; + +template<> +struct wxFormatStringArgumentFinder + : public wxFormatStringArgumentFinder {}; + // ---------------------------------------------------------------------------- // wxArgNormalizer* converters // ---------------------------------------------------------------------------- +#if wxDEBUG_LEVEL + // Check that the format specifier for index-th argument in 'fmt' has + // the correct type (one of wxFormatString::Arg_XXX or-combination in + // 'expected_mask'). + #define wxASSERT_ARG_TYPE(fmt, index, expected_mask) \ + wxSTATEMENT_MACRO_BEGIN \ + if ( !fmt ) \ + break; \ + const int argtype = fmt->GetArgumentType(index); \ + wxASSERT_MSG( (argtype & (expected_mask)) == argtype, \ + "format specifier doesn't match argument type" ); \ + wxSTATEMENT_MACRO_END +#else + // Just define it to suppress "unused parameter" warnings for the + // parameters which we don't use otherwise + #define wxASSERT_ARG_TYPE(fmt, index, expected_mask) \ + wxUnusedVar(fmt); \ + wxUnusedVar(index) +#endif // wxDEBUG_LEVEL/!wxDEBUG_LEVEL + + +#if defined(HAVE_TYPE_TRAITS) || defined(HAVE_TR1_TYPE_TRAITS) + +// Note: this type is misnamed, so that the error message is easier to +// understand (no error happens for enums, because the IsEnum=true case is +// specialized). +template +struct wxFormatStringSpecifierNonPodType {}; + +template<> +struct wxFormatStringSpecifierNonPodType +{ + enum { value = wxFormatString::Arg_Int }; +}; + +template +struct wxFormatStringSpecifier +{ +#ifdef HAVE_TYPE_TRAITS + typedef std::is_enum is_enum; +#elif defined HAVE_TR1_TYPE_TRAITS + typedef std::tr1::is_enum is_enum; +#endif + enum { value = wxFormatStringSpecifierNonPodType::value }; +}; + +#else // !HAVE_(TR1_)TYPE_TRAITS + +template +struct wxFormatStringSpecifier +{ + // We can't detect enums without is_enum, so the only thing we can + // do is to accept unknown types. However, the only acceptable unknown + // types still are enums, which are promoted to ints, so return Arg_Int + // here. This will at least catch passing of non-POD types through ... at + // runtime. + // + // Furthermore, if the compiler doesn't have partial template + // specialization, we didn't cover pointers either. +#ifdef HAVE_PARTIAL_SPECIALIZATION + enum { value = wxFormatString::Arg_Int }; +#else + enum { value = wxFormatString::Arg_Int | wxFormatString::Arg_Pointer }; +#endif +}; + +#endif // HAVE_TR1_TYPE_TRAITS/!HAVE_TR1_TYPE_TRAITS + + +#ifdef HAVE_PARTIAL_SPECIALIZATION +template +struct wxFormatStringSpecifier +{ + enum { value = wxFormatString::Arg_Pointer }; +}; + +template +struct wxFormatStringSpecifier +{ + enum { value = wxFormatString::Arg_Pointer }; +}; +#endif // !HAVE_PARTIAL_SPECIALIZATION + + +#define wxFORMAT_STRING_SPECIFIER(T, arg) \ + template<> struct wxFormatStringSpecifier \ + { \ + enum { value = arg }; \ + }; + +wxFORMAT_STRING_SPECIFIER(bool, wxFormatString::Arg_Int) +wxFORMAT_STRING_SPECIFIER(int, wxFormatString::Arg_Int) +wxFORMAT_STRING_SPECIFIER(unsigned int, wxFormatString::Arg_Int) +wxFORMAT_STRING_SPECIFIER(short int, wxFormatString::Arg_Int) +wxFORMAT_STRING_SPECIFIER(short unsigned int, wxFormatString::Arg_Int) +wxFORMAT_STRING_SPECIFIER(long int, wxFormatString::Arg_LongInt) +wxFORMAT_STRING_SPECIFIER(long unsigned int, wxFormatString::Arg_LongInt) +#ifdef wxLongLong_t +wxFORMAT_STRING_SPECIFIER(wxLongLong_t, wxFormatString::Arg_LongLongInt) +wxFORMAT_STRING_SPECIFIER(wxULongLong_t, wxFormatString::Arg_LongLongInt) +#endif +wxFORMAT_STRING_SPECIFIER(float, wxFormatString::Arg_Double) +wxFORMAT_STRING_SPECIFIER(double, wxFormatString::Arg_Double) +wxFORMAT_STRING_SPECIFIER(long double, wxFormatString::Arg_LongDouble) + +#if wxWCHAR_T_IS_REAL_TYPE +wxFORMAT_STRING_SPECIFIER(wchar_t, wxFormatString::Arg_Char | wxFormatString::Arg_Int) +#endif + +#if !wxUSE_UNICODE +wxFORMAT_STRING_SPECIFIER(char, wxFormatString::Arg_Char | wxFormatString::Arg_Int) +wxFORMAT_STRING_SPECIFIER(signed char, wxFormatString::Arg_Char | wxFormatString::Arg_Int) +wxFORMAT_STRING_SPECIFIER(unsigned char, wxFormatString::Arg_Char | wxFormatString::Arg_Int) +#endif + +wxFORMAT_STRING_SPECIFIER(char*, wxFormatString::Arg_String) +wxFORMAT_STRING_SPECIFIER(unsigned char*, wxFormatString::Arg_String) +wxFORMAT_STRING_SPECIFIER(signed char*, wxFormatString::Arg_String) +wxFORMAT_STRING_SPECIFIER(const char*, wxFormatString::Arg_String) +wxFORMAT_STRING_SPECIFIER(const unsigned char*, wxFormatString::Arg_String) +wxFORMAT_STRING_SPECIFIER(const signed char*, wxFormatString::Arg_String) +wxFORMAT_STRING_SPECIFIER(wchar_t*, wxFormatString::Arg_String) +wxFORMAT_STRING_SPECIFIER(const wchar_t*, wxFormatString::Arg_String) + +wxFORMAT_STRING_SPECIFIER(int*, wxFormatString::Arg_IntPtr | wxFormatString::Arg_Pointer) +wxFORMAT_STRING_SPECIFIER(short int*, wxFormatString::Arg_ShortIntPtr | wxFormatString::Arg_Pointer) +wxFORMAT_STRING_SPECIFIER(long int*, wxFormatString::Arg_LongIntPtr | wxFormatString::Arg_Pointer) + +#undef wxFORMAT_STRING_SPECIFIER + + // Converts an argument passed to wxPrint etc. into standard form expected, // by wxXXX functions, e.g. all strings (wxString, char*, wchar_t*) are // converted into wchar_t* or char* depending on the build. @@ -263,8 +446,11 @@ struct wxArgNormalizer // use format string and 'index' is index of 'value' in variadic arguments // list (starting at 1) wxArgNormalizer(T value, - const wxFormatString *WXUNUSED(fmt), unsigned WXUNUSED(index)) - : m_value(value) {} + const wxFormatString *fmt, unsigned index) + : m_value(value) + { + wxASSERT_ARG_TYPE( fmt, index, wxFormatStringSpecifier::value ); + } // Returns the value in a form that can be safely passed to real vararg // functions. In case of strings, this is char* in ANSI build and wchar_t* @@ -318,9 +504,12 @@ struct wxArgNormalizerWithBuffer wxArgNormalizerWithBuffer() {} wxArgNormalizerWithBuffer(const CharBuffer& buf, - const wxFormatString *WXUNUSED(fmt), - unsigned WXUNUSED(index)) - : m_value(buf) {} + const wxFormatString *fmt, + unsigned index) + : m_value(buf) + { + wxASSERT_ARG_TYPE( fmt, index, wxFormatString::Arg_String ); + } const CharType *get() const { return m_value; } @@ -332,9 +521,12 @@ template<> struct WXDLLIMPEXP_BASE wxArgNormalizerNative { wxArgNormalizerNative(const wxString& s, - const wxFormatString *WXUNUSED(fmt), - unsigned WXUNUSED(index)) - : m_value(s) {} + const wxFormatString *fmt, + unsigned index) + : m_value(s) + { + wxASSERT_ARG_TYPE( fmt, index, wxFormatString::Arg_String ); + } const wxStringCharType *get() const; @@ -346,9 +538,12 @@ template<> struct WXDLLIMPEXP_BASE wxArgNormalizerNative { wxArgNormalizerNative(const wxCStrData& value, - const wxFormatString *WXUNUSED(fmt), - unsigned WXUNUSED(index)) - : m_value(value) {} + const wxFormatString *fmt, + unsigned index) + : m_value(value) + { + wxASSERT_ARG_TYPE( fmt, index, wxFormatString::Arg_String ); + } const wxStringCharType *get() const; @@ -404,9 +599,11 @@ struct wxArgNormalizerUtf8 : public wxArgNormalizerWithBuffer { wxArgNormalizerUtf8(const char* s, - const wxFormatString *WXUNUSED(fmt), - unsigned WXUNUSED(index)) + const wxFormatString *fmt, + unsigned index) { + wxASSERT_ARG_TYPE( fmt, index, wxFormatString::Arg_String ); + if ( wxLocaleIsUtf8 ) { m_value = wxScopedCharBuffer::CreateNonOwned(s); @@ -489,6 +686,10 @@ WX_ARG_NORMALIZER_FORWARD(wxScopedCharBuffer, const char*); WX_ARG_NORMALIZER_FORWARD(const wxScopedCharBuffer&, const char*); WX_ARG_NORMALIZER_FORWARD(wxScopedWCharBuffer, const wchar_t*); WX_ARG_NORMALIZER_FORWARD(const wxScopedWCharBuffer&, const wchar_t*); +WX_ARG_NORMALIZER_FORWARD(wxCharBuffer, const char*); +WX_ARG_NORMALIZER_FORWARD(const wxCharBuffer&, const char*); +WX_ARG_NORMALIZER_FORWARD(wxWCharBuffer, const wchar_t*); +WX_ARG_NORMALIZER_FORWARD(const wxWCharBuffer&, const wchar_t*); // versions for std::[w]string: #if wxUSE_STD_STRING @@ -565,6 +766,9 @@ struct wxArgNormalizerNarrowChar wxArgNormalizerNarrowChar(T value, const wxFormatString *fmt, unsigned index) { + wxASSERT_ARG_TYPE( fmt, index, + wxFormatString::Arg_Char | wxFormatString::Arg_Int ); + // FIXME-UTF8: which one is better default in absence of fmt string // (i.e. when used like e.g. Foo("foo", "bar", 'c', NULL)? if ( !fmt || fmt->GetArgumentType(index) == wxFormatString::Arg_Char ) @@ -595,6 +799,15 @@ struct wxArgNormalizer : wxArgNormalizerNarrowChar(value, fmt, index) {} }; +template<> +struct wxArgNormalizer + : public wxArgNormalizerNarrowChar +{ + wxArgNormalizer(signed char value, + const wxFormatString *fmt, unsigned index) + : wxArgNormalizerNarrowChar(value, fmt, index) {} +}; + #endif // wxUSE_UNICODE // convert references: @@ -605,11 +818,14 @@ WX_ARG_NORMALIZER_FORWARD(const wchar_t&, wchar_t); WX_ARG_NORMALIZER_FORWARD(const char&, char); WX_ARG_NORMALIZER_FORWARD(const unsigned char&, unsigned char); +WX_ARG_NORMALIZER_FORWARD(const signed char&, signed char); #undef WX_ARG_NORMALIZER_FORWARD #undef _WX_ARG_NORMALIZER_FORWARD_IMPL +// NB: Don't #undef wxASSERT_ARG_TYPE here as it's also used in wx/longlong.h. + // ---------------------------------------------------------------------------- // WX_VA_ARG_STRING // ----------------------------------------------------------------------------