X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/817270659e986de1b243586d8eb6ad3a76c87480..4f671eebc9595a81ef2380bb7d9541bf401ce700:/include/wx/strvararg.h diff --git a/include/wx/strvararg.h b/include/wx/strvararg.h index 55eb9c01f2..29b4ae041b 100644 --- a/include/wx/strvararg.h +++ b/include/wx/strvararg.h @@ -16,13 +16,14 @@ #error "OpenWatcom version >= 1.4 is required to compile this code" #endif +#include "wx/cpp.h" #include "wx/chartype.h" +#include "wx/strconv.h" +#include "wx/buffer.h" +#include "wx/unichar.h" -class WXDLLIMPEXP_BASE wxCStrData; -class WXDLLIMPEXP_BASE wxString; -class WXDLLIMPEXP_BASE wxCharBuffer; -class WXDLLIMPEXP_BASE wxWCharBuffer; - +class WXDLLIMPEXP_FWD_BASE wxCStrData; +class WXDLLIMPEXP_FWD_BASE wxString; // ---------------------------------------------------------------------------- // WX_DEFINE_VARARG_FUNC* macros @@ -35,40 +36,228 @@ class WXDLLIMPEXP_BASE wxWCharBuffer; // // This is done by defining a set of N template function taking 1..N arguments // (currently, N is set to 30 in this header). These functions are just thin -// wrappers around another variadic function (@a impl) and the only thing -// the wrapper does is that it normalizes the arguments passed in so that -// they are of the type expected by variadic functions taking string -// arguments, i.e., char* or wchar_t*, depending on the build: +// wrappers around another variadic function ('impl' or 'implUtf8' arguments, +// see below) and the only thing the wrapper does is that it normalizes the +// arguments passed in so that they are of the type expected by variadic +// functions taking string arguments, i.e., char* or wchar_t*, depending on the +// build: // * char* in the current locale's charset in ANSI build -// * whchar_t* in the Unicode build +// * char* with UTF-8 encoding if wxUSE_UNICODE_UTF8 and the app is running +// under an UTF-8 locale +// * wchar_t* if wxUSE_UNICODE_WCHAR or if wxUSE_UNICODE_UTF8 and the current +// locale is not UTF-8 +// +// Note that wxFormatString *must* be used for the format parameter of these +// functions, otherwise the implementation won't work correctly. Furthermore, +// it must be passed by value, not reference, because it's modified by the +// vararg templates internally. // // Parameters: -// rettype Functions' return type. -// name Name of the function. -// impl Name of the variadic function that implements 'name'. -#define WX_DEFINE_VARARG_FUNC(rettype, name, impl) \ - _WX_VARARG_ITER(_WX_VARARG_MAX_ARGS, \ - _WX_VARARG_DEFINE_FUNC, \ - rettype, name, impl) +// [ there are examples in square brackets showing values of the parameters +// for the wxFprintf() wrapper for fprintf() function with the following +// prototype: +// int wxFprintf(FILE *stream, const wxString& format, ...); ] +// +// rettype Functions' return type [int] +// name Name of the function [fprintf] +// numfixed The number of leading "fixed" (i.e., not variadic) +// arguments of the function (e.g. "stream" and "format" +// arguments of fprintf()); their type is _not_ converted +// using wxArgNormalizer, unlike the rest of +// the function's arguments [2] +// fixed List of types of the leading "fixed" arguments, in +// parenthesis [(FILE*,const wxString&)] +// impl Name of the variadic function that implements 'name' for +// the native strings representation (wchar_t* if +// wxUSE_UNICODE_WCHAR or wxUSE_UNICODE_UTF8 when running under +// non-UTF8 locale, char* in ANSI build) [wxCrt_Fprintf] +// implUtf8 Like 'impl', but for the UTF-8 char* version to be used +// if wxUSE_UNICODE_UTF8 and running under UTF-8 locale +// (ignored otherwise) [fprintf] +// +#define WX_DEFINE_VARARG_FUNC(rettype, name, numfixed, fixed, impl, implUtf8) \ + _WX_VARARG_DEFINE_FUNC_N0(rettype, name, impl, implUtf8, numfixed, fixed) \ + WX_DEFINE_VARARG_FUNC_SANS_N0(rettype, name, numfixed, fixed, impl, implUtf8) + +// ditto, but without the version with 0 template/vararg arguments +#define WX_DEFINE_VARARG_FUNC_SANS_N0(rettype, name, \ + numfixed, fixed, impl, implUtf8) \ + _WX_VARARG_ITER(_WX_VARARG_MAX_ARGS, \ + _WX_VARARG_DEFINE_FUNC, \ + rettype, name, impl, implUtf8, numfixed, fixed) // Like WX_DEFINE_VARARG_FUNC, but for variadic functions that don't return // a value. -#define WX_DEFINE_VARARG_FUNC_VOID(name, impl) \ - _WX_VARARG_ITER(_WX_VARARG_MAX_ARGS, \ - _WX_VARARG_DEFINE_FUNC_VOID, \ - void, name, impl) +#define WX_DEFINE_VARARG_FUNC_VOID(name, numfixed, fixed, impl, implUtf8) \ + _WX_VARARG_DEFINE_FUNC_VOID_N0(name, impl, implUtf8, numfixed, fixed) \ + _WX_VARARG_ITER(_WX_VARARG_MAX_ARGS, \ + _WX_VARARG_DEFINE_FUNC_VOID, \ + void, name, impl, implUtf8, numfixed, fixed) // Like WX_DEFINE_VARARG_FUNC_VOID, but instead of wrapping an implementation // function, does nothing in defined functions' bodies. // // Used to implement wxLogXXX functions if wxUSE_LOG=0. -#define WX_DEFINE_VARARG_FUNC_NOP(name) \ - _WX_VARARG_ITER(_WX_VARARG_MAX_ARGS, \ - _WX_VARARG_DEFINE_FUNC_NOP, \ - void, name, dummy) +#define WX_DEFINE_VARARG_FUNC_NOP(name, numfixed, fixed) \ + _WX_VARARG_DEFINE_FUNC_NOP_N0(name, numfixed, fixed) \ + _WX_VARARG_ITER(_WX_VARARG_MAX_ARGS, \ + _WX_VARARG_DEFINE_FUNC_NOP, \ + void, name, dummy, dummy, numfixed, fixed) + +// Like WX_DEFINE_VARARG_FUNC_CTOR, but for defining template constructors +#define WX_DEFINE_VARARG_FUNC_CTOR(name, numfixed, fixed, impl, implUtf8) \ + _WX_VARARG_DEFINE_FUNC_CTOR_N0(name, impl, implUtf8, numfixed, fixed) \ + _WX_VARARG_ITER(_WX_VARARG_MAX_ARGS, \ + _WX_VARARG_DEFINE_FUNC_CTOR, \ + void, name, impl, implUtf8, numfixed, fixed) + // ---------------------------------------------------------------------------- -// implementation +// wxFormatString +// ---------------------------------------------------------------------------- + +// This class must be used for format string argument of the functions +// defined using WX_DEFINE_VARARG_FUNC_* macros. It converts the string to +// char* or wchar_t* for passing to implementation function efficiently (i.e. +// without keeping the converted string in memory for longer than necessary, +// like c_str()). It also converts format string to the correct form that +// accounts for string changes done by wxArgNormalizer<> +// +// Note that this class can _only_ be used for function arguments! +class WXDLLIMPEXP_BASE wxFormatString +{ +public: + wxFormatString(const char *str) + : m_char(wxScopedCharBuffer::CreateNonOwned(str)), m_str(NULL), m_cstr(NULL) {} + wxFormatString(const wchar_t *str) + : m_wchar(wxScopedWCharBuffer::CreateNonOwned(str)), m_str(NULL), m_cstr(NULL) {} + wxFormatString(const wxString& str) + : m_str(&str), m_cstr(NULL) {} + wxFormatString(const wxCStrData& str) + : m_str(NULL), m_cstr(&str) {} + wxFormatString(const wxScopedCharBuffer& str) + : m_char(str), m_str(NULL), m_cstr(NULL) {} + wxFormatString(const wxScopedWCharBuffer& str) + : m_wchar(str), m_str(NULL), m_cstr(NULL) {} + + + enum ArgumentType + { + Arg_Char, // character as char + + Arg_Other // something else, for example int for %d + }; + + // returns the type of format specifier for n-th variadic argument (this is + // not necessarily n-th format specifier if positional specifiers are used); + // called by wxArgNormalizer<> specializations to get information about + // n-th variadic argument desired representation + ArgumentType GetArgumentType(unsigned n) const; + + // returns the value passed to ctor, only converted to wxString, similarly + // to other InputAsXXX() methods + wxString InputAsString() const; + +#if !wxUSE_UNICODE_WCHAR + operator const char*() const + { 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() + // and does format string conversion on it as well (and similarly for + // ..AsWChar() below) + const char* InputAsChar(); + const char* AsChar(); + wxScopedCharBuffer m_convertedChar; +#endif // !wxUSE_UNICODE_WCHAR + +#if wxUSE_UNICODE && !wxUSE_UTF8_LOCALE_ONLY +public: + operator const wchar_t*() const + { return const_cast(this)->AsWChar(); } +private: + const wchar_t* InputAsWChar(); + const wchar_t* AsWChar(); + wxScopedWCharBuffer m_convertedWChar; +#endif // wxUSE_UNICODE && !wxUSE_UTF8_LOCALE_ONLY + +private: + wxScopedCharBuffer m_char; + wxScopedWCharBuffer m_wchar; + + // NB: we can use a pointer here, because wxFormatString is only used + // as function argument, so it has shorter life than the string + // passed to the ctor + const wxString * const m_str; + const wxCStrData * const m_cstr; + + wxDECLARE_NO_ASSIGN_CLASS(wxFormatString); +}; + +// these two helper classes are used to find wxFormatString argument among fixed +// arguments passed to a vararg template +struct wxFormatStringArgument +{ + wxFormatStringArgument(const wxFormatString *s = NULL) : m_str(s) {} + const wxFormatString *m_str; + + // overriding this operator allows us to reuse _WX_VARARG_JOIN macro + wxFormatStringArgument operator,(const wxFormatStringArgument& a) const + { + wxASSERT_MSG( m_str == NULL || a.m_str == NULL, + "can't have two format strings in vararg function" ); + return wxFormatStringArgument(m_str ? m_str : a.m_str); + } + + operator const wxFormatString*() const { return m_str; } +}; + +template +struct wxFormatStringArgumentFinder +{ + static wxFormatStringArgument find(T) + { + // by default, arguments are not format strings, so return "not found" + return wxFormatStringArgument(); + } +}; + +template<> +struct wxFormatStringArgumentFinder +{ + static wxFormatStringArgument find(const wxFormatString& arg) + { return wxFormatStringArgument(&arg); } +}; + +template<> +struct wxFormatStringArgumentFinder + : public wxFormatStringArgumentFinder {}; + +// avoid passing big objects by value to wxFormatStringArgumentFinder::find() +// (and especially wx[W]CharBuffer with its auto_ptr<> style semantics!): +template<> +struct wxFormatStringArgumentFinder + : public wxFormatStringArgumentFinder {}; + +template<> +struct wxFormatStringArgumentFinder + : public wxFormatStringArgumentFinder {}; + +template<> +struct wxFormatStringArgumentFinder + : public wxFormatStringArgumentFinder {}; + +template<> +struct wxFormatStringArgumentFinder + : public wxFormatStringArgumentFinder {}; + +template<> +struct wxFormatStringArgumentFinder + : public wxFormatStringArgumentFinder {}; + + +// ---------------------------------------------------------------------------- +// wxArgNormalizer* converters // ---------------------------------------------------------------------------- // Converts an argument passed to wxPrint etc. into standard form expected, @@ -77,132 +266,403 @@ class WXDLLIMPEXP_BASE wxWCharBuffer; template struct wxArgNormalizer { - wxArgNormalizer(const T& value) : m_value(value) {} + // Ctor. 'value' is the value passed as variadic argument, 'fmt' is pointer + // to printf-like format string or NULL if the variadic function doesn't + // 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) {} // 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* // in Unicode build. - const T& get() const { return m_value; } + T get() const { return m_value; } - const T& m_value; + T m_value; }; +// normalizer for passing arguments to functions working with wchar_t* (and +// until ANSI build is removed, char* in ANSI build as well - FIXME-UTF8) +// string representation +#if !wxUSE_UTF8_LOCALE_ONLY +template +struct wxArgNormalizerWchar : public wxArgNormalizer +{ + wxArgNormalizerWchar(T value, + const wxFormatString *fmt, unsigned index) + : wxArgNormalizer(value, fmt, index) {} +}; +#endif // !wxUSE_UTF8_LOCALE_ONLY + +// normalizer for passing arguments to functions working with UTF-8 encoded +// char* strings +#if wxUSE_UNICODE_UTF8 + template + struct wxArgNormalizerUtf8 : public wxArgNormalizer + { + wxArgNormalizerUtf8(T value, + const wxFormatString *fmt, unsigned index) + : wxArgNormalizer(value, fmt, index) {} + }; + + #define wxArgNormalizerNative wxArgNormalizerUtf8 +#else // wxUSE_UNICODE_WCHAR + #define wxArgNormalizerNative wxArgNormalizerWchar +#endif // wxUSE_UNICODE_UTF8 // wxUSE_UNICODE_UTF8 + + + // special cases for converting strings: + +// base class for wxArgNormalizer specializations that need to do conversion; +// CharType is either wxStringCharType or wchar_t in UTF-8 build when wrapping +// widechar CRT function +template +struct wxArgNormalizerWithBuffer +{ + typedef wxScopedCharTypeBuffer CharBuffer; + + wxArgNormalizerWithBuffer() {} + wxArgNormalizerWithBuffer(const CharBuffer& buf, + const wxFormatString *WXUNUSED(fmt), + unsigned WXUNUSED(index)) + : m_value(buf) {} + + const CharType *get() const { return m_value; } + + CharBuffer m_value; +}; + +// string objects: template<> -struct WXDLLIMPEXP_BASE wxArgNormalizer +struct WXDLLIMPEXP_BASE wxArgNormalizerNative { - wxArgNormalizer(const wxCStrData& value) : m_value(value) {} - const wxChar *get() const; // FIXME-UTF8: should be wxStringCharType + wxArgNormalizerNative(const wxString& s, + const wxFormatString *WXUNUSED(fmt), + unsigned WXUNUSED(index)) + : m_value(s) {} + + const wxStringCharType *get() const; + + const wxString& m_value; +}; + +// c_str() values: +template<> +struct WXDLLIMPEXP_BASE wxArgNormalizerNative +{ + wxArgNormalizerNative(const wxCStrData& value, + const wxFormatString *WXUNUSED(fmt), + unsigned WXUNUSED(index)) + : m_value(value) {} + + const wxStringCharType *get() const; const wxCStrData& m_value; }; +// wxString/wxCStrData conversion to wchar_t* value +#if wxUSE_UNICODE_UTF8 && !wxUSE_UTF8_LOCALE_ONLY template<> -struct wxArgNormalizer : public wxArgNormalizer +struct WXDLLIMPEXP_BASE wxArgNormalizerWchar + : public wxArgNormalizerWithBuffer { - wxArgNormalizer(const wxCStrData& value) - : wxArgNormalizer(value) {} + wxArgNormalizerWchar(const wxString& s, + const wxFormatString *fmt, unsigned index); }; template<> -struct WXDLLIMPEXP_BASE wxArgNormalizer +struct WXDLLIMPEXP_BASE wxArgNormalizerWchar + : public wxArgNormalizerWithBuffer { - wxArgNormalizer(const wxString& value) : m_value(value) {} - const wxChar *get() const; // FIXME-UTF8: should be wxStringCharType + wxArgNormalizerWchar(const wxCStrData& s, + const wxFormatString *fmt, unsigned index); +}; +#endif // wxUSE_UNICODE_UTF8 && !wxUSE_UTF8_LOCALE_ONLY - const wxString& m_value; + +// C string pointers of the wrong type (wchar_t* for ANSI or UTF8 build, +// char* for wchar_t Unicode build or UTF8): +#if wxUSE_UNICODE_WCHAR + +template<> +struct wxArgNormalizerWchar + : public wxArgNormalizerWithBuffer +{ + wxArgNormalizerWchar(const char* s, + const wxFormatString *fmt, unsigned index) + : wxArgNormalizerWithBuffer(wxConvLibc.cMB2WC(s), fmt, index) {} +}; + +#elif wxUSE_UNICODE_UTF8 + +template<> +struct wxArgNormalizerUtf8 + : public wxArgNormalizerWithBuffer +{ + wxArgNormalizerUtf8(const wchar_t* s, + const wxFormatString *fmt, unsigned index) + : wxArgNormalizerWithBuffer(wxConvUTF8.cWC2MB(s), fmt, index) {} }; template<> -struct wxArgNormalizer : public wxArgNormalizer +struct wxArgNormalizerUtf8 + : public wxArgNormalizerWithBuffer { - wxArgNormalizer(const wxString& value) - : wxArgNormalizer(value) {} + wxArgNormalizerUtf8(const char* s, + const wxFormatString *WXUNUSED(fmt), + unsigned WXUNUSED(index)) + { + if ( wxLocaleIsUtf8 ) + { + m_value = wxScopedCharBuffer::CreateNonOwned(s); + } + else + { + // convert to widechar string first: + wxScopedWCharBuffer buf(wxConvLibc.cMB2WC(s)); + + // then to UTF-8: + if ( buf ) + m_value = wxConvUTF8.cWC2MB(buf); + } + } }; -#if wxUSE_UNICODE // FIXME-UTF8: should be wxUSE_UNICODE_WCHAR +// UTF-8 build needs conversion to wchar_t* too: +#if !wxUSE_UTF8_LOCALE_ONLY template<> -struct WXDLLIMPEXP_BASE wxArgNormalizer +struct wxArgNormalizerWchar + : public wxArgNormalizerWithBuffer { - wxArgNormalizer(const char *value); - ~wxArgNormalizer(); - const wchar_t *get() const; + wxArgNormalizerWchar(const char* s, + const wxFormatString *fmt, unsigned index) + : wxArgNormalizerWithBuffer(wxConvLibc.cMB2WC(s), fmt, index) {} +}; +#endif // !wxUSE_UTF8_LOCALE_ONLY + +#else // ANSI - FIXME-UTF8 - wxWCharBuffer *m_value; +template<> +struct wxArgNormalizerWchar + : public wxArgNormalizerWithBuffer +{ + wxArgNormalizerWchar(const wchar_t* s, + const wxFormatString *fmt, unsigned index) + : wxArgNormalizerWithBuffer(wxConvLibc.cWC2MB(s), fmt, index) {} }; +#endif // wxUSE_UNICODE_WCHAR/wxUSE_UNICODE_UTF8/ANSI + + +// this macro is used to implement specialization that are exactly same as +// some other specialization, i.e. to "forward" the implementation (e.g. for +// T=wxString and T=const wxString&). Note that the ctor takes BaseT argument, +// not T! +#if wxUSE_UNICODE_UTF8 + #if wxUSE_UTF8_LOCALE_ONLY + #define WX_ARG_NORMALIZER_FORWARD(T, BaseT) \ + _WX_ARG_NORMALIZER_FORWARD_IMPL(wxArgNormalizerUtf8, T, BaseT) + #else // possibly non-UTF8 locales + #define WX_ARG_NORMALIZER_FORWARD(T, BaseT) \ + _WX_ARG_NORMALIZER_FORWARD_IMPL(wxArgNormalizerWchar, T, BaseT); \ + _WX_ARG_NORMALIZER_FORWARD_IMPL(wxArgNormalizerUtf8, T, BaseT) + #endif +#else // wxUSE_UNICODE_WCHAR + #define WX_ARG_NORMALIZER_FORWARD(T, BaseT) \ + _WX_ARG_NORMALIZER_FORWARD_IMPL(wxArgNormalizerWchar, T, BaseT) +#endif // wxUSE_UNICODE_UTF8/wxUSE_UNICODE_WCHAR + +#define _WX_ARG_NORMALIZER_FORWARD_IMPL(Normalizer, T, BaseT) \ + template<> \ + struct Normalizer : public Normalizer \ + { \ + Normalizer(BaseT value, \ + const wxFormatString *fmt, unsigned index) \ + : Normalizer(value, fmt, index) {} \ + } + +// non-reference versions of specializations for string objects +WX_ARG_NORMALIZER_FORWARD(wxString, const wxString&); +WX_ARG_NORMALIZER_FORWARD(wxCStrData, const wxCStrData&); + +// versions for passing non-const pointers: +WX_ARG_NORMALIZER_FORWARD(char*, const char*); +WX_ARG_NORMALIZER_FORWARD(wchar_t*, const wchar_t*); + +// versions for passing wx[W]CharBuffer: +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 + +#include "wx/stringimpl.h" + +#if !wxUSE_UTF8_LOCALE_ONLY template<> -struct wxArgNormalizer : public wxArgNormalizer +struct wxArgNormalizerWchar + : public wxArgNormalizerWchar { - wxArgNormalizer(char *value) - : wxArgNormalizer(value) {} + wxArgNormalizerWchar(const std::string& s, + const wxFormatString *fmt, unsigned index) + : wxArgNormalizerWchar(s.c_str(), fmt, index) {} }; -#endif // wxUSE_UNICODE_WCHAR -// FIXME-UTF8 -#if 0 // wxUSE_UNICODE_UTF8 -// for conversion from local charset to UTF-8 template<> -struct WXDLLIMPEXP_BASE wxArgNormalizer +struct wxArgNormalizerWchar + : public wxArgNormalizerWchar { - wxArgNormalizer(const char *value); - ~wxArgNormalizer(); - const char *get() const; + wxArgNormalizerWchar(const wxStdWideString& s, + const wxFormatString *fmt, unsigned index) + : wxArgNormalizerWchar(s.c_str(), fmt, index) {} +}; +#endif // !wxUSE_UTF8_LOCALE_ONLY - wxCharBuffer *m_value; +#if wxUSE_UNICODE_UTF8 +template<> +struct wxArgNormalizerUtf8 + : public wxArgNormalizerUtf8 +{ + wxArgNormalizerUtf8(const std::string& s, + const wxFormatString *fmt, unsigned index) + : wxArgNormalizerUtf8(s.c_str(), fmt, index) {} }; template<> -struct wxArgNormalizer : public wxArgNormalizer +struct wxArgNormalizerUtf8 + : public wxArgNormalizerUtf8 { - wxArgNormalizer(char *value) - : wxArgNormalizer(value) {} + wxArgNormalizerUtf8(const wxStdWideString& s, + const wxFormatString *fmt, unsigned index) + : wxArgNormalizerUtf8(s.c_str(), fmt, index) {} }; #endif // wxUSE_UNICODE_UTF8 -#if /*wxUSE_UNICODE_UTF8 || */ !wxUSE_UNICODE // FIXME-UTF8 +WX_ARG_NORMALIZER_FORWARD(std::string, const std::string&); +WX_ARG_NORMALIZER_FORWARD(wxStdWideString, const wxStdWideString&); + +#endif // wxUSE_STD_STRING + + +// versions for wxUniChar, wxUniCharRef: +// (this is same for UTF-8 and Wchar builds, we just convert to wchar_t) template<> -struct WXDLLIMPEXP_BASE wxArgNormalizer +struct wxArgNormalizer : public wxArgNormalizer { - wxArgNormalizer(const wchar_t *value); - ~wxArgNormalizer(); - const char *get() const; + wxArgNormalizer(const wxUniChar& s, + const wxFormatString *fmt, unsigned index) + : wxArgNormalizer(s.GetValue(), fmt, index) {} +}; + +// for wchar_t, default handler does the right thing + +// char has to be treated differently in Unicode builds: a char argument may +// be used either for a character value (which should be converted into +// wxUniChar) or as an integer value (which should be left as-is). We take +// advantage of the fact that both char and wchar_t are converted into int +// in variadic arguments here. +#if wxUSE_UNICODE +template +struct wxArgNormalizerNarrowChar +{ + wxArgNormalizerNarrowChar(T value, + const wxFormatString *fmt, unsigned index) + { + // 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 ) + m_value = wx_truncate_cast(T, wxUniChar(value).GetValue()); + else + m_value = value; + } - wxCharBuffer *m_value; + int get() const { return m_value; } + + T m_value; }; template<> -struct wxArgNormalizer : public wxArgNormalizer +struct wxArgNormalizer : public wxArgNormalizerNarrowChar { - wxArgNormalizer(wchar_t *value) - : wxArgNormalizer(value) {} + wxArgNormalizer(char value, + const wxFormatString *fmt, unsigned index) + : wxArgNormalizerNarrowChar(value, fmt, index) {} }; -#endif // wxUSE_UNICODE_UTF8 || !wxUSE_UNICODE -// versions for passing wx[W]CharBuffer: template<> -struct WXDLLIMPEXP_BASE wxArgNormalizer - : public wxArgNormalizer +struct wxArgNormalizer + : public wxArgNormalizerNarrowChar { - wxArgNormalizer(const wxCharBuffer& buf); + wxArgNormalizer(unsigned char value, + const wxFormatString *fmt, unsigned index) + : wxArgNormalizerNarrowChar(value, fmt, index) {} }; -template<> -struct WXDLLIMPEXP_BASE wxArgNormalizer - : public wxArgNormalizer +#endif // wxUSE_UNICODE + +// convert references: +WX_ARG_NORMALIZER_FORWARD(wxUniChar, const wxUniChar&); +WX_ARG_NORMALIZER_FORWARD(const wxUniCharRef&, const wxUniChar&); +WX_ARG_NORMALIZER_FORWARD(wxUniCharRef, const wxUniChar&); +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); + + +#undef WX_ARG_NORMALIZER_FORWARD +#undef _WX_ARG_NORMALIZER_FORWARD_IMPL + +// ---------------------------------------------------------------------------- +// WX_VA_ARG_STRING +// ---------------------------------------------------------------------------- + +// Replacement for va_arg() for use with strings in functions that accept +// strings normalized by wxArgNormalizer: + +struct WXDLLIMPEXP_BASE wxArgNormalizedString { - wxArgNormalizer(const wxWCharBuffer& buf); + wxArgNormalizedString(const void* ptr) : m_ptr(ptr) {} + + // returns true if non-NULL string was passed in + bool IsValid() const { return m_ptr != NULL; } + operator bool() const { return IsValid(); } + + // extracts the string, returns empty string if NULL was passed in + wxString GetString() const; + operator wxString() const; + +private: + const void *m_ptr; }; +#define WX_VA_ARG_STRING(ap) wxArgNormalizedString(va_arg(ap, const void*)) +// ---------------------------------------------------------------------------- +// implementation of the WX_DEFINE_VARARG_* macros +// ---------------------------------------------------------------------------- -// NB: The vararg emulation code is limited to 30 arguments at the moment. -// If you need more, you need to +// NB: The vararg emulation code is limited to 30 variadic and 4 fixed +// arguments at the moment. +// If you need more variadic arguments, you need to // 1) increase the value of _WX_VARARG_MAX_ARGS // 2) add _WX_VARARG_JOIN_* and _WX_VARARG_ITER_* up to the new // _WX_VARARG_MAX_ARGS value to the lists below +// If you need more fixed arguments, you need to +// 1) increase the value of _WX_VARARG_MAX_FIXED_ARGS +// 2) add _WX_VARARG_FIXED_EXPAND_* and _WX_VARARG_FIXED_UNUSED_EXPAND_* +// macros below #define _WX_VARARG_MAX_ARGS 30 +#define _WX_VARARG_MAX_FIXED_ARGS 4 #define _WX_VARARG_JOIN_1(m) m(1) #define _WX_VARARG_JOIN_2(m) _WX_VARARG_JOIN_1(m), m(2) @@ -235,36 +695,87 @@ struct WXDLLIMPEXP_BASE wxArgNormalizer #define _WX_VARARG_JOIN_29(m) _WX_VARARG_JOIN_28(m), m(29) #define _WX_VARARG_JOIN_30(m) _WX_VARARG_JOIN_29(m), m(30) -#define _WX_VARARG_ITER_1(m,a,b,c) m(1,a,b,c) -#define _WX_VARARG_ITER_2(m,a,b,c) _WX_VARARG_ITER_1(m,a,b,c) m(2,a,b,c) -#define _WX_VARARG_ITER_3(m,a,b,c) _WX_VARARG_ITER_2(m,a,b,c) m(3,a,b,c) -#define _WX_VARARG_ITER_4(m,a,b,c) _WX_VARARG_ITER_3(m,a,b,c) m(4,a,b,c) -#define _WX_VARARG_ITER_5(m,a,b,c) _WX_VARARG_ITER_4(m,a,b,c) m(5,a,b,c) -#define _WX_VARARG_ITER_6(m,a,b,c) _WX_VARARG_ITER_5(m,a,b,c) m(6,a,b,c) -#define _WX_VARARG_ITER_7(m,a,b,c) _WX_VARARG_ITER_6(m,a,b,c) m(7,a,b,c) -#define _WX_VARARG_ITER_8(m,a,b,c) _WX_VARARG_ITER_7(m,a,b,c) m(8,a,b,c) -#define _WX_VARARG_ITER_9(m,a,b,c) _WX_VARARG_ITER_8(m,a,b,c) m(9,a,b,c) -#define _WX_VARARG_ITER_10(m,a,b,c) _WX_VARARG_ITER_9(m,a,b,c) m(10,a,b,c) -#define _WX_VARARG_ITER_11(m,a,b,c) _WX_VARARG_ITER_10(m,a,b,c) m(11,a,b,c) -#define _WX_VARARG_ITER_12(m,a,b,c) _WX_VARARG_ITER_11(m,a,b,c) m(12,a,b,c) -#define _WX_VARARG_ITER_13(m,a,b,c) _WX_VARARG_ITER_12(m,a,b,c) m(13,a,b,c) -#define _WX_VARARG_ITER_14(m,a,b,c) _WX_VARARG_ITER_13(m,a,b,c) m(14,a,b,c) -#define _WX_VARARG_ITER_15(m,a,b,c) _WX_VARARG_ITER_14(m,a,b,c) m(15,a,b,c) -#define _WX_VARARG_ITER_16(m,a,b,c) _WX_VARARG_ITER_15(m,a,b,c) m(16,a,b,c) -#define _WX_VARARG_ITER_17(m,a,b,c) _WX_VARARG_ITER_16(m,a,b,c) m(17,a,b,c) -#define _WX_VARARG_ITER_18(m,a,b,c) _WX_VARARG_ITER_17(m,a,b,c) m(18,a,b,c) -#define _WX_VARARG_ITER_19(m,a,b,c) _WX_VARARG_ITER_18(m,a,b,c) m(19,a,b,c) -#define _WX_VARARG_ITER_20(m,a,b,c) _WX_VARARG_ITER_19(m,a,b,c) m(20,a,b,c) -#define _WX_VARARG_ITER_21(m,a,b,c) _WX_VARARG_ITER_20(m,a,b,c) m(21,a,b,c) -#define _WX_VARARG_ITER_22(m,a,b,c) _WX_VARARG_ITER_21(m,a,b,c) m(22,a,b,c) -#define _WX_VARARG_ITER_23(m,a,b,c) _WX_VARARG_ITER_22(m,a,b,c) m(23,a,b,c) -#define _WX_VARARG_ITER_24(m,a,b,c) _WX_VARARG_ITER_23(m,a,b,c) m(24,a,b,c) -#define _WX_VARARG_ITER_25(m,a,b,c) _WX_VARARG_ITER_24(m,a,b,c) m(25,a,b,c) -#define _WX_VARARG_ITER_26(m,a,b,c) _WX_VARARG_ITER_25(m,a,b,c) m(26,a,b,c) -#define _WX_VARARG_ITER_27(m,a,b,c) _WX_VARARG_ITER_26(m,a,b,c) m(27,a,b,c) -#define _WX_VARARG_ITER_28(m,a,b,c) _WX_VARARG_ITER_27(m,a,b,c) m(28,a,b,c) -#define _WX_VARARG_ITER_29(m,a,b,c) _WX_VARARG_ITER_28(m,a,b,c) m(29,a,b,c) -#define _WX_VARARG_ITER_30(m,a,b,c) _WX_VARARG_ITER_29(m,a,b,c) m(30,a,b,c) +#define _WX_VARARG_ITER_1(m,a,b,c,d,e,f) m(1,a,b,c,d,e,f) +#define _WX_VARARG_ITER_2(m,a,b,c,d,e,f) _WX_VARARG_ITER_1(m,a,b,c,d,e,f) m(2,a,b,c,d,e,f) +#define _WX_VARARG_ITER_3(m,a,b,c,d,e,f) _WX_VARARG_ITER_2(m,a,b,c,d,e,f) m(3,a,b,c,d,e,f) +#define _WX_VARARG_ITER_4(m,a,b,c,d,e,f) _WX_VARARG_ITER_3(m,a,b,c,d,e,f) m(4,a,b,c,d,e,f) +#define _WX_VARARG_ITER_5(m,a,b,c,d,e,f) _WX_VARARG_ITER_4(m,a,b,c,d,e,f) m(5,a,b,c,d,e,f) +#define _WX_VARARG_ITER_6(m,a,b,c,d,e,f) _WX_VARARG_ITER_5(m,a,b,c,d,e,f) m(6,a,b,c,d,e,f) +#define _WX_VARARG_ITER_7(m,a,b,c,d,e,f) _WX_VARARG_ITER_6(m,a,b,c,d,e,f) m(7,a,b,c,d,e,f) +#define _WX_VARARG_ITER_8(m,a,b,c,d,e,f) _WX_VARARG_ITER_7(m,a,b,c,d,e,f) m(8,a,b,c,d,e,f) +#define _WX_VARARG_ITER_9(m,a,b,c,d,e,f) _WX_VARARG_ITER_8(m,a,b,c,d,e,f) m(9,a,b,c,d,e,f) +#define _WX_VARARG_ITER_10(m,a,b,c,d,e,f) _WX_VARARG_ITER_9(m,a,b,c,d,e,f) m(10,a,b,c,d,e,f) +#define _WX_VARARG_ITER_11(m,a,b,c,d,e,f) _WX_VARARG_ITER_10(m,a,b,c,d,e,f) m(11,a,b,c,d,e,f) +#define _WX_VARARG_ITER_12(m,a,b,c,d,e,f) _WX_VARARG_ITER_11(m,a,b,c,d,e,f) m(12,a,b,c,d,e,f) +#define _WX_VARARG_ITER_13(m,a,b,c,d,e,f) _WX_VARARG_ITER_12(m,a,b,c,d,e,f) m(13,a,b,c,d,e,f) +#define _WX_VARARG_ITER_14(m,a,b,c,d,e,f) _WX_VARARG_ITER_13(m,a,b,c,d,e,f) m(14,a,b,c,d,e,f) +#define _WX_VARARG_ITER_15(m,a,b,c,d,e,f) _WX_VARARG_ITER_14(m,a,b,c,d,e,f) m(15,a,b,c,d,e,f) +#define _WX_VARARG_ITER_16(m,a,b,c,d,e,f) _WX_VARARG_ITER_15(m,a,b,c,d,e,f) m(16,a,b,c,d,e,f) +#define _WX_VARARG_ITER_17(m,a,b,c,d,e,f) _WX_VARARG_ITER_16(m,a,b,c,d,e,f) m(17,a,b,c,d,e,f) +#define _WX_VARARG_ITER_18(m,a,b,c,d,e,f) _WX_VARARG_ITER_17(m,a,b,c,d,e,f) m(18,a,b,c,d,e,f) +#define _WX_VARARG_ITER_19(m,a,b,c,d,e,f) _WX_VARARG_ITER_18(m,a,b,c,d,e,f) m(19,a,b,c,d,e,f) +#define _WX_VARARG_ITER_20(m,a,b,c,d,e,f) _WX_VARARG_ITER_19(m,a,b,c,d,e,f) m(20,a,b,c,d,e,f) +#define _WX_VARARG_ITER_21(m,a,b,c,d,e,f) _WX_VARARG_ITER_20(m,a,b,c,d,e,f) m(21,a,b,c,d,e,f) +#define _WX_VARARG_ITER_22(m,a,b,c,d,e,f) _WX_VARARG_ITER_21(m,a,b,c,d,e,f) m(22,a,b,c,d,e,f) +#define _WX_VARARG_ITER_23(m,a,b,c,d,e,f) _WX_VARARG_ITER_22(m,a,b,c,d,e,f) m(23,a,b,c,d,e,f) +#define _WX_VARARG_ITER_24(m,a,b,c,d,e,f) _WX_VARARG_ITER_23(m,a,b,c,d,e,f) m(24,a,b,c,d,e,f) +#define _WX_VARARG_ITER_25(m,a,b,c,d,e,f) _WX_VARARG_ITER_24(m,a,b,c,d,e,f) m(25,a,b,c,d,e,f) +#define _WX_VARARG_ITER_26(m,a,b,c,d,e,f) _WX_VARARG_ITER_25(m,a,b,c,d,e,f) m(26,a,b,c,d,e,f) +#define _WX_VARARG_ITER_27(m,a,b,c,d,e,f) _WX_VARARG_ITER_26(m,a,b,c,d,e,f) m(27,a,b,c,d,e,f) +#define _WX_VARARG_ITER_28(m,a,b,c,d,e,f) _WX_VARARG_ITER_27(m,a,b,c,d,e,f) m(28,a,b,c,d,e,f) +#define _WX_VARARG_ITER_29(m,a,b,c,d,e,f) _WX_VARARG_ITER_28(m,a,b,c,d,e,f) m(29,a,b,c,d,e,f) +#define _WX_VARARG_ITER_30(m,a,b,c,d,e,f) _WX_VARARG_ITER_29(m,a,b,c,d,e,f) m(30,a,b,c,d,e,f) + + +#define _WX_VARARG_FIXED_EXPAND_1(t1) \ + t1 f1 +#define _WX_VARARG_FIXED_EXPAND_2(t1,t2) \ + t1 f1, t2 f2 +#define _WX_VARARG_FIXED_EXPAND_3(t1,t2,t3) \ + t1 f1, t2 f2, t3 f3 +#define _WX_VARARG_FIXED_EXPAND_4(t1,t2,t3,t4) \ + t1 f1, t2 f2, t3 f3, t4 f4 + +#define _WX_VARARG_FIXED_UNUSED_EXPAND_1(t1) \ + t1 WXUNUSED(f1) +#define _WX_VARARG_FIXED_UNUSED_EXPAND_2(t1,t2) \ + t1 WXUNUSED(f1), t2 WXUNUSED(f2) +#define _WX_VARARG_FIXED_UNUSED_EXPAND_3(t1,t2,t3) \ + t1 WXUNUSED(f1), t2 WXUNUSED(f2), t3 WXUNUSED(f3) +#define _WX_VARARG_FIXED_UNUSED_EXPAND_4(t1,t2,t3,t4) \ + t1 WXUNUSED(f1), t2 WXUNUSED(f2), t3 WXUNUSED(f3), t4 WXUNUSED(f4) + +#define _WX_VARARG_FIXED_TYPEDEFS_1(t1) \ + typedef t1 TF1 +#define _WX_VARARG_FIXED_TYPEDEFS_2(t1,t2) \ + _WX_VARARG_FIXED_TYPEDEFS_1(t1); typedef t2 TF2 +#define _WX_VARARG_FIXED_TYPEDEFS_3(t1,t2,t3) \ + _WX_VARARG_FIXED_TYPEDEFS_2(t1,t2); typedef t3 TF3 +#define _WX_VARARG_FIXED_TYPEDEFS_4(t1,t2,t3,t4) \ + _WX_VARARG_FIXED_TYPEDEFS_3(t1,t2,t3); typedef t4 TF4 + +// This macro expands N-items tuple of fixed arguments types into part of +// function's declaration. For example, +// "_WX_VARARG_FIXED_EXPAND(3, (int, char*, int))" expands into +// "int f1, char* f2, int f3". +#define _WX_VARARG_FIXED_EXPAND(N, args) \ + _WX_VARARG_FIXED_EXPAND_IMPL(N, args) +#define _WX_VARARG_FIXED_EXPAND_IMPL(N, args) \ + _WX_VARARG_FIXED_EXPAND_##N args + +// Ditto for unused arguments +#define _WX_VARARG_FIXED_UNUSED_EXPAND(N, args) \ + _WX_VARARG_FIXED_UNUSED_EXPAND_IMPL(N, args) +#define _WX_VARARG_FIXED_UNUSED_EXPAND_IMPL(N, args) \ + _WX_VARARG_FIXED_UNUSED_EXPAND_##N args + +// Declarates typedefs for fixed arguments types; i-th fixed argument types +// will have TFi typedef. +#define _WX_VARARG_FIXED_TYPEDEFS(N, args) \ + _WX_VARARG_FIXED_TYPEDEFS_IMPL(N, args) +#define _WX_VARARG_FIXED_TYPEDEFS_IMPL(N, args) \ + _WX_VARARG_FIXED_TYPEDEFS_##N args + // This macro calls another macro 'm' passed as second argument 'N' times, // with its only argument set to 1..N, and concatenates the results using @@ -280,61 +791,229 @@ struct WXDLLIMPEXP_BASE wxArgNormalizer #define _WX_VARARG_JOIN(N, m) _WX_VARARG_JOIN_IMPL(N, m) #define _WX_VARARG_JOIN_IMPL(N, m) _WX_VARARG_JOIN_##N(m) + // This macro calls another macro 'm' passed as second argument 'N' times, with -// its first argument set to 1..N and the remaining arguments set to 'a', 'b' -// and 'c'. The results are separated with whitespace in the expansion. +// its first argument set to 1..N and the remaining arguments set to 'a', 'b', +// 'c', 'd', 'e' and 'f'. The results are separated with whitespace in the +// expansion. // // An example: // // this macro expands to: -// // foo(1,a,b,c) -// // foo(2,a,b,c) -// // foo(3,a,b,c) -// _WX_VARARG_ITER(3, foo, a, b, c) +// // foo(1,a,b,c,d,e,f) +// // foo(2,a,b,c,d,e,f) +// // foo(3,a,b,c,d,e,f) +// _WX_VARARG_ITER(3, foo, a, b, c, d, e, f) // // N must not be greater than _WX_VARARG_MAX_ARGS (=30). -#define _WX_VARARG_ITER(N, m,a,b,c) _WX_VARARG_ITER_IMPL(N, m, a, b, c) -#define _WX_VARARG_ITER_IMPL(N, m,a,b,c) _WX_VARARG_ITER_##N(m, a, b, c) +#define _WX_VARARG_ITER(N,m,a,b,c,d,e,f) \ + _WX_VARARG_ITER_IMPL(N,m,a,b,c,d,e,f) +#define _WX_VARARG_ITER_IMPL(N,m,a,b,c,d,e,f) \ + _WX_VARARG_ITER_##N(m,a,b,c,d,e,f) -// Generates code snippet for i-th argument in vararg function's prototype. -#define _WX_VARARG_ARG(i) T##i a##i +// Generates code snippet for i-th "variadic" argument in vararg function's +// prototype: +#define _WX_VARARG_ARG(i) T##i a##i -// Like _WX_VARARG_ARG_UNUSED, but outputs argument's type with WXUNUSED. -#define _WX_VARARG_ARG_UNUSED(i) T##i WXUNUSED(a##i) +// Like _WX_VARARG_ARG_UNUSED, but outputs argument's type with WXUNUSED: +#define _WX_VARARG_ARG_UNUSED(i) T##i WXUNUSED(a##i) -// Generates code snippet for i-th type in vararg function's template<...>. -#define _WX_VARARG_TEMPL(i) typename T##i +// Generates code snippet for i-th type in vararg function's template<...>: +#define _WX_VARARG_TEMPL(i) typename T##i // Generates code snippet for passing i-th argument of vararg function -// wrapper to its implementation, normalizing it in the process -#define _WX_VARARG_PASS(i) wxArgNormalizer(a##i).get() +// wrapper to its implementation, normalizing it in the process: +#define _WX_VARARG_PASS_WCHAR(i) \ + wxArgNormalizerWchar(a##i, fmt, i).get() +#define _WX_VARARG_PASS_UTF8(i) \ + wxArgNormalizerUtf8(a##i, fmt, i).get() + + +// And the same for fixed arguments, _not_ normalizing it: +#define _WX_VARARG_PASS_FIXED(i) f##i + +#define _WX_VARARG_FIND_FMT(i) \ + (wxFormatStringArgumentFinder::find(f##i)) + +#define _WX_VARARG_FORMAT_STRING(numfixed, fixed) \ + _WX_VARARG_FIXED_TYPEDEFS(numfixed, fixed); \ + const wxFormatString *fmt = \ + (_WX_VARARG_JOIN(numfixed, _WX_VARARG_FIND_FMT)) + +#if wxUSE_UNICODE_UTF8 + #define _WX_VARARG_DO_CALL_UTF8(return_kw, impl, implUtf8, N, numfixed) \ + return_kw implUtf8(_WX_VARARG_JOIN(numfixed, _WX_VARARG_PASS_FIXED), \ + _WX_VARARG_JOIN(N, _WX_VARARG_PASS_UTF8)) + #define _WX_VARARG_DO_CALL0_UTF8(return_kw, impl, implUtf8, numfixed) \ + return_kw implUtf8(_WX_VARARG_JOIN(numfixed, _WX_VARARG_PASS_FIXED)) +#endif // wxUSE_UNICODE_UTF8 + +#define _WX_VARARG_DO_CALL_WCHAR(return_kw, impl, implUtf8, N, numfixed) \ + return_kw impl(_WX_VARARG_JOIN(numfixed, _WX_VARARG_PASS_FIXED), \ + _WX_VARARG_JOIN(N, _WX_VARARG_PASS_WCHAR)) +#define _WX_VARARG_DO_CALL0_WCHAR(return_kw, impl, implUtf8, numfixed) \ + return_kw impl(_WX_VARARG_JOIN(numfixed, _WX_VARARG_PASS_FIXED)) + +#if wxUSE_UNICODE_UTF8 + #if wxUSE_UTF8_LOCALE_ONLY + #define _WX_VARARG_DO_CALL _WX_VARARG_DO_CALL_UTF8 + #define _WX_VARARG_DO_CALL0 _WX_VARARG_DO_CALL0_UTF8 + #else // possibly non-UTF8 locales + #define _WX_VARARG_DO_CALL(return_kw, impl, implUtf8, N, numfixed) \ + if ( wxLocaleIsUtf8 ) \ + _WX_VARARG_DO_CALL_UTF8(return_kw, impl, implUtf8, N, numfixed);\ + else \ + _WX_VARARG_DO_CALL_WCHAR(return_kw, impl, implUtf8, N, numfixed) + + #define _WX_VARARG_DO_CALL0(return_kw, impl, implUtf8, numfixed) \ + if ( wxLocaleIsUtf8 ) \ + _WX_VARARG_DO_CALL0_UTF8(return_kw, impl, implUtf8, numfixed); \ + else \ + _WX_VARARG_DO_CALL0_WCHAR(return_kw, impl, implUtf8, numfixed) + #endif // wxUSE_UTF8_LOCALE_ONLY or not +#else // wxUSE_UNICODE_WCHAR or ANSI + #define _WX_VARARG_DO_CALL _WX_VARARG_DO_CALL_WCHAR + #define _WX_VARARG_DO_CALL0 _WX_VARARG_DO_CALL0_WCHAR +#endif // wxUSE_UNICODE_UTF8 / wxUSE_UNICODE_WCHAR // Macro to be used with _WX_VARARG_ITER in the implementation of // WX_DEFINE_VARARG_FUNC (see its documentation for the meaning of arguments) -#define _WX_VARARG_DEFINE_FUNC(N, rettype, name, impl) \ - template<_WX_VARARG_JOIN(N, _WX_VARARG_TEMPL)> \ - rettype name(_WX_VARARG_JOIN(N, _WX_VARARG_ARG)) \ - { \ - return impl(_WX_VARARG_JOIN(N, _WX_VARARG_PASS)); \ +#define _WX_VARARG_DEFINE_FUNC(N, rettype, name, \ + impl, implUtf8, numfixed, fixed) \ + template<_WX_VARARG_JOIN(N, _WX_VARARG_TEMPL)> \ + rettype name(_WX_VARARG_FIXED_EXPAND(numfixed, fixed), \ + _WX_VARARG_JOIN(N, _WX_VARARG_ARG)) \ + { \ + _WX_VARARG_FORMAT_STRING(numfixed, fixed); \ + _WX_VARARG_DO_CALL(return, impl, implUtf8, N, numfixed); \ + } + +#define _WX_VARARG_DEFINE_FUNC_N0(rettype, name, \ + impl, implUtf8, numfixed, fixed) \ + inline rettype name(_WX_VARARG_FIXED_EXPAND(numfixed, fixed)) \ + { \ + _WX_VARARG_DO_CALL0(return, impl, implUtf8, numfixed); \ } // Macro to be used with _WX_VARARG_ITER in the implementation of // WX_DEFINE_VARARG_FUNC_VOID (see its documentation for the meaning of // arguments; rettype is ignored and is used only to satisfy _WX_VARARG_ITER's // requirements). -#define _WX_VARARG_DEFINE_FUNC_VOID(N, rettype, name, impl) \ - template<_WX_VARARG_JOIN(N, _WX_VARARG_TEMPL)> \ - void name(_WX_VARARG_JOIN(N, _WX_VARARG_ARG)) \ - { \ - impl(_WX_VARARG_JOIN(N, _WX_VARARG_PASS)); \ +#define _WX_VARARG_DEFINE_FUNC_VOID(N, rettype, name, \ + impl, implUtf8, numfixed, fixed) \ + template<_WX_VARARG_JOIN(N, _WX_VARARG_TEMPL)> \ + void name(_WX_VARARG_FIXED_EXPAND(numfixed, fixed), \ + _WX_VARARG_JOIN(N, _WX_VARARG_ARG)) \ + { \ + _WX_VARARG_FORMAT_STRING(numfixed, fixed); \ + _WX_VARARG_DO_CALL(wxEMPTY_PARAMETER_VALUE, \ + impl, implUtf8, N, numfixed); \ + } + +#define _WX_VARARG_DEFINE_FUNC_VOID_N0(name, impl, implUtf8, numfixed, fixed) \ + inline void name(_WX_VARARG_FIXED_EXPAND(numfixed, fixed)) \ + { \ + _WX_VARARG_DO_CALL0(wxEMPTY_PARAMETER_VALUE, \ + impl, implUtf8, numfixed); \ + } + +// Macro to be used with _WX_VARARG_ITER in the implementation of +// WX_DEFINE_VARARG_FUNC_CTOR (see its documentation for the meaning of +// arguments; rettype is ignored and is used only to satisfy _WX_VARARG_ITER's +// requirements). +#define _WX_VARARG_DEFINE_FUNC_CTOR(N, rettype, name, \ + impl, implUtf8, numfixed, fixed) \ + template<_WX_VARARG_JOIN(N, _WX_VARARG_TEMPL)> \ + name(_WX_VARARG_FIXED_EXPAND(numfixed, fixed), \ + _WX_VARARG_JOIN(N, _WX_VARARG_ARG)) \ + { \ + _WX_VARARG_FORMAT_STRING(numfixed, fixed); \ + _WX_VARARG_DO_CALL(wxEMPTY_PARAMETER_VALUE, \ + impl, implUtf8, N, numfixed); \ + } + +#define _WX_VARARG_DEFINE_FUNC_CTOR_N0(name, impl, implUtf8, numfixed, fixed) \ + inline name(_WX_VARARG_FIXED_EXPAND(numfixed, fixed)) \ + { \ + _WX_VARARG_DO_CALL0(wxEMPTY_PARAMETER_VALUE, \ + impl, implUtf8, numfixed); \ } // Macro to be used with _WX_VARARG_ITER in the implementation of // WX_DEFINE_VARARG_FUNC_NOP, i.e. empty stub for a disabled vararg function. // The rettype and impl arguments are ignored. -#define _WX_VARARG_DEFINE_FUNC_NOP(N, rettype, name, impl) \ - template<_WX_VARARG_JOIN(N, _WX_VARARG_TEMPL)> \ - void name(_WX_VARARG_JOIN(N, _WX_VARARG_ARG_UNUSED)) {} +#define _WX_VARARG_DEFINE_FUNC_NOP(N, rettype, name, \ + impl, implUtf8, numfixed, fixed) \ + template<_WX_VARARG_JOIN(N, _WX_VARARG_TEMPL)> \ + void name(_WX_VARARG_FIXED_UNUSED_EXPAND(numfixed, fixed), \ + _WX_VARARG_JOIN(N, _WX_VARARG_ARG_UNUSED)) \ + {} + +#define _WX_VARARG_DEFINE_FUNC_NOP_N0(name, numfixed, fixed) \ + inline void name(_WX_VARARG_FIXED_UNUSED_EXPAND(numfixed, fixed)) \ + {} + + +// ---------------------------------------------------------------------------- +// workaround for OpenWatcom bug #351 +// ---------------------------------------------------------------------------- + +#ifdef __WATCOMC__ +// workaround for http://bugzilla.openwatcom.org/show_bug.cgi?id=351 + +// This macro can be used to forward a 'vararg' template to another one with +// different fixed arguments types. Parameters are same as for +// WX_DEFINE_VARARG_FUNC (rettype=void can be used here), 'convfixed' is how +// to convert fixed arguments. For example, this is typical code for dealing +// with different forms of format string: +// +// WX_DEFINE_VARARG_FUNC_VOID(Printf, 1, (const wxFormatString&), +// DoPrintfWchar, DoPrintfUtf8) +// #ifdef __WATCOMC__ +// WX_VARARG_WATCOM_WORKAROUND(void, Printf, 1, (const wxString&), +// (wxFormatString(f1))) +// WX_VARARG_WATCOM_WORKAROUND(void, Printf, 1, (const char*), +// (wxFormatString(f1))) +// ... +#define WX_VARARG_WATCOM_WORKAROUND(rettype, name, numfixed, fixed, convfixed)\ + _WX_VARARG_ITER(_WX_VARARG_MAX_ARGS, \ + _WX_VARARG_WATCOM_WORKAROUND, \ + rettype, name, convfixed, dummy, numfixed, fixed) + +#define WX_VARARG_WATCOM_WORKAROUND_CTOR(name, numfixed, fixed, convfixed) \ + _WX_VARARG_ITER(_WX_VARARG_MAX_ARGS, \ + _WX_VARARG_WATCOM_WORKAROUND_CTOR, \ + dummy, name, convfixed, dummy, numfixed, fixed) + +#define _WX_VARARG_WATCOM_UNPACK_1(a1) a1 +#define _WX_VARARG_WATCOM_UNPACK_2(a1, a2) a1, a2 +#define _WX_VARARG_WATCOM_UNPACK_3(a1, a2, a3) a1, a2, a3 +#define _WX_VARARG_WATCOM_UNPACK_4(a1, a2, a3, a4) a1, a2, a3, a4 +#define _WX_VARARG_WATCOM_UNPACK(N, convfixed) \ + _WX_VARARG_WATCOM_UNPACK_##N convfixed + +#define _WX_VARARG_PASS_WATCOM(i) a##i + +#define _WX_VARARG_WATCOM_WORKAROUND(N, rettype, name, \ + convfixed, dummy, numfixed, fixed) \ + template<_WX_VARARG_JOIN(N, _WX_VARARG_TEMPL)> \ + rettype name(_WX_VARARG_FIXED_EXPAND(numfixed, fixed), \ + _WX_VARARG_JOIN(N, _WX_VARARG_ARG)) \ + { \ + return name(_WX_VARARG_WATCOM_UNPACK(numfixed, convfixed), \ + _WX_VARARG_JOIN(N, _WX_VARARG_PASS_WATCOM)); \ + } + +#define _WX_VARARG_WATCOM_WORKAROUND_CTOR(N, dummy1, name, \ + convfixed, dummy2, numfixed, fixed) \ + template<_WX_VARARG_JOIN(N, _WX_VARARG_TEMPL)> \ + name(_WX_VARARG_FIXED_EXPAND(numfixed, fixed), \ + _WX_VARARG_JOIN(N, _WX_VARARG_ARG)) \ + { \ + name(_WX_VARARG_WATCOM_UNPACK(numfixed, convfixed), \ + _WX_VARARG_JOIN(N, _WX_VARARG_PASS_WATCOM)); \ + } +#endif // __WATCOMC__ #endif // _WX_STRVARARG_H_