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@@ -0,0 +1,2323 @@
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+#pragma once
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+// FastDelegate.h
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+// Efficient delegates in C++ that generate only two lines of asm code!
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+// Documentation is found at http://www.codeproject.com/cpp/FastDelegate.asp
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+//
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+// - Don Clugston, Mar 2004.
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+// Major contributions were made by Jody Hagins.
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+// History:
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+// 24-Apr-04 1.0 * Submitted to CodeProject.
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+// 28-Apr-04 1.1 * Prevent most unsafe uses of evil static function hack.
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+// * Improved syntax for horrible_cast (thanks Paul Bludov).
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+// * Tested on Metrowerks MWCC and Intel ICL (IA32)
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+// * Compiled, but not run, on Comeau C++ and Intel Itanium ICL.
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+// 27-Jun-04 1.2 * Now works on Borland C++ Builder 5.5
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+// * Now works on /clr "managed C++" code on VC7, VC7.1
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+// * Comeau C++ now compiles without warnings.
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+// * Prevent the virtual inheritance case from being used on
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+// VC6 and earlier, which generate incorrect code.
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+// * Improved warning and error messages. Non-standard hacks
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+// now have compile-time checks to make them safer.
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+// * implicit_cast used instead of static_cast in many cases.
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+// * If calling a const member function, a const class pointer can be used.
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+// * MakeDelegate() global helper function added to simplify pass-by-value.
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+// * Added fastdelegate.clear()
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+// 16-Jul-04 1.2.1* Workaround for gcc bug (const member function pointers in templates)
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+// 30-Oct-04 1.3 * Support for (non-void) return values.
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+// * No more workarounds in client code!
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+// MSVC and Intel now use a clever hack invented by John Dlugosz:
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+// - The FASTDELEGATEDECLARE workaround is no longer necessary.
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+// - No more warning messages for VC6
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+// * Less use of macros. Error messages should be more comprehensible.
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+// * Added include guards
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+// * Added FastDelegate::empty() to test if invocation is safe (Thanks Neville Franks).
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+// * Now tested on VS 2005 Express Beta, PGI C++
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+// 24-Dec-04 1.4 * Added DelegateMemento, to allow collections of disparate delegates.
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+// * <,>,<=,>= comparison operators to allow storage in ordered containers.
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+// * Substantial reduction of code size, especially the 'Closure' class.
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+// * Standardised all the compiler-specific workarounds.
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+// * MFP conversion now works for CodePlay (but not yet supported in the full code).
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+// * Now compiles without warnings on _any_ supported compiler, including BCC 5.5.1
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+// * New syntax: FastDelegate< int (char *, double) >.
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+// 14-Feb-05 1.4.1* Now treats =0 as equivalent to .clear(), ==0 as equivalent to .empty(). (Thanks elfric).
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+// * Now tested on Intel ICL for AMD64, VS2005 Beta for AMD64 and Itanium.
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+// 30-Mar-05 1.5 * Safebool idiom: "if (dg)" is now equivalent to "if (!dg.empty())"
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+// * Fully supported by CodePlay VectorC
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+// * Bugfix for Metrowerks: empty() was buggy because a valid MFP can be 0 on MWCC!
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+// * More optimal assignment,== and != operators for static function pointers.
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+
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+#ifndef FASTDELEGATE_H
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+#define FASTDELEGATE_H
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+#if _MSC_VER > 1000
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+#pragma once
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+#endif // _MSC_VER > 1000
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+
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+#include <memory.h> // to allow <,> comparisons
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+
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+////////////////////////////////////////////////////////////////////////////////
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+// Configuration options
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+//
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+////////////////////////////////////////////////////////////////////////////////
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+
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+// Uncomment the following #define for optimally-sized delegates.
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+// In this case, the generated asm code is almost identical to the code you'd get
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+// if the compiler had native support for delegates.
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+// It will not work on systems where sizeof(dataptr) < sizeof(codeptr).
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+// Thus, it will not work for DOS compilers using the medium model.
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+// It will also probably fail on some DSP systems.
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+#define FASTDELEGATE_USESTATICFUNCTIONHACK
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+
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+// Uncomment the next line to allow function declarator syntax.
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+// It is automatically enabled for those compilers where it is known to work.
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+//#define FASTDELEGATE_ALLOW_FUNCTION_TYPE_SYNTAX
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+
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+////////////////////////////////////////////////////////////////////////////////
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+// Compiler identification for workarounds
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+//
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+////////////////////////////////////////////////////////////////////////////////
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+
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+// Compiler identification. It's not easy to identify Visual C++ because
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+// many vendors fraudulently define Microsoft's identifiers.
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+#if defined(_MSC_VER) && !defined(__MWERKS__) && !defined(__VECTOR_C) && !defined(__ICL) && !defined(__BORLANDC__)
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+#define FASTDLGT_ISMSVC
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+
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+#if (_MSC_VER <1300) // Many workarounds are required for VC6.
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+#define FASTDLGT_VC6
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+#pragma warning(disable:4786) // disable this ridiculous warning
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+#endif
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+
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+#endif
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+
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+// Does the compiler uses Microsoft's member function pointer structure?
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+// If so, it needs special treatment.
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+// Metrowerks CodeWarrior, Intel, and CodePlay fraudulently define Microsoft's
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+// identifier, _MSC_VER. We need to filter Metrowerks out.
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+#if defined(_MSC_VER) && !defined(__MWERKS__)
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+#define FASTDLGT_MICROSOFT_MFP
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+
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+#if !defined(__VECTOR_C)
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+// CodePlay doesn't have the __single/multi/virtual_inheritance keywords
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+#define FASTDLGT_HASINHERITANCE_KEYWORDS
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+#endif
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+#endif
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+
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+// Does it allow function declarator syntax? The following compilers are known to work:
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+#if defined(FASTDLGT_ISMSVC) && (_MSC_VER >=1310) // VC 7.1
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+#define FASTDELEGATE_ALLOW_FUNCTION_TYPE_SYNTAX
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+#endif
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+
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+// Gcc(2.95+), and versions of Digital Mars, Intel and Comeau in common use.
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+#if defined (__DMC__) || defined(__GNUC__) || defined(__ICL) || defined(__COMO__)
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+#define FASTDELEGATE_ALLOW_FUNCTION_TYPE_SYNTAX
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+#endif
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+
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+// It works on Metrowerks MWCC 3.2.2. From boost.Config it should work on earlier ones too.
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+#if defined (__MWERKS__)
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+#define FASTDELEGATE_ALLOW_FUNCTION_TYPE_SYNTAX
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+#endif
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+
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+#ifdef __GNUC__ // Workaround GCC bug #8271
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+ // At present, GCC doesn't recognize constness of MFPs in templates
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+#define FASTDELEGATE_GCC_BUG_8271
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+#endif
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+
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+
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+
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+////////////////////////////////////////////////////////////////////////////////
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+// General tricks used in this code
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+//
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+// (a) Error messages are generated by typdefing an array of negative size to
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+// generate compile-time errors.
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+// (b) Warning messages on MSVC are generated by declaring unused variables, and
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+// enabling the "variable XXX is never used" warning.
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+// (c) Unions are used in a few compiler-specific cases to perform illegal casts.
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+// (d) For Microsoft and Intel, when adjusting the 'this' pointer, it's cast to
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+// (char *) first to ensure that the correct number of *bytes* are added.
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+//
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+////////////////////////////////////////////////////////////////////////////////
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+// Helper templates
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+//
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+////////////////////////////////////////////////////////////////////////////////
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+
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+
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+namespace fastdelegate {
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+ namespace detail { // we'll hide the implementation details in a nested namespace.
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+
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+ // implicit_cast< >
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+ // I believe this was originally going to be in the C++ standard but
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+ // was left out by accident. It's even milder than static_cast.
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+ // I use it instead of static_cast<> to emphasize that I'm not doing
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+ // anything nasty.
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+ // Usage is identical to static_cast<>
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+ template <class OutputClass, class InputClass>
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+ inline OutputClass implicit_cast(InputClass input) {
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+ return input;
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+ }
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+
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+ // horrible_cast< >
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+ // This is truly evil. It completely subverts C++'s type system, allowing you
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+ // to cast from any class to any other class. Technically, using a union
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+ // to perform the cast is undefined behaviour (even in C). But we can see if
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+ // it is OK by checking that the union is the same size as each of its members.
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+ // horrible_cast<> should only be used for compiler-specific workarounds.
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+ // Usage is identical to reinterpret_cast<>.
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+
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+ // This union is declared outside the horrible_cast because BCC 5.5.1
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+ // can't inline a function with a nested class, and gives a warning.
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+ template <class OutputClass, class InputClass>
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+ union horrible_union {
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+ OutputClass out;
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+ InputClass in;
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+ };
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+
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+ template <class OutputClass, class InputClass>
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+ inline OutputClass horrible_cast(const InputClass input) {
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+ horrible_union<OutputClass, InputClass> u;
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+ // Cause a compile-time error if in, out and u are not the same size.
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+ // If the compile fails here, it means the compiler has peculiar
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+ // unions which would prevent the cast from working.
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+ typedef int ERROR_CantUseHorrible_cast[sizeof(InputClass) == sizeof(u)
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+ && sizeof(InputClass) == sizeof(OutputClass) ? 1 : -1];
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+ u.in = input;
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+ return u.out;
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+ }
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+
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+ ////////////////////////////////////////////////////////////////////////////////
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+ // Workarounds
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+ //
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+ ////////////////////////////////////////////////////////////////////////////////
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+
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+ // Backwards compatibility: This macro used to be necessary in the virtual inheritance
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+ // case for Intel and Microsoft. Now it just forward-declares the class.
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+#define FASTDELEGATEDECLARE(CLASSNAME) class CLASSNAME;
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+
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+// Prevent use of the static function hack with the DOS medium model.
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+#ifdef __MEDIUM__
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+#undef FASTDELEGATE_USESTATICFUNCTIONHACK
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+#endif
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+
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+// DefaultVoid - a workaround for 'void' templates in VC6.
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+//
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+// (1) VC6 and earlier do not allow 'void' as a default template argument.
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+// (2) They also doesn't allow you to return 'void' from a function.
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+//
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+// Workaround for (1): Declare a dummy type 'DefaultVoid' which we use
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+// when we'd like to use 'void'. We convert it into 'void' and back
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+// using the templates DefaultVoidToVoid<> and VoidToDefaultVoid<>.
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+// Workaround for (2): On VC6, the code for calling a void function is
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+// identical to the code for calling a non-void function in which the
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+// return value is never used, provided the return value is returned
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+// in the EAX register, rather than on the stack.
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+// This is true for most fundamental types such as int, enum, void *.
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+// Const void * is the safest option since it doesn't participate
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+// in any automatic conversions. But on a 16-bit compiler it might
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+// cause extra code to be generated, so we disable it for all compilers
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+// except for VC6 (and VC5).
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+#ifdef FASTDLGT_VC6
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+// VC6 workaround
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+ typedef const void* DefaultVoid;
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+#else
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+// On any other compiler, just use a normal void.
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+ typedef void DefaultVoid;
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+#endif
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+
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+ // Translate from 'DefaultVoid' to 'void'.
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+ // Everything else is unchanged
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+ template <class T>
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+ struct DefaultVoidToVoid { typedef T type; };
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+
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+ template <>
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+ struct DefaultVoidToVoid<DefaultVoid> { typedef void type; };
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+
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+ // Translate from 'void' into 'DefaultVoid'
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+ // Everything else is unchanged
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+ template <class T>
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+ struct VoidToDefaultVoid { typedef T type; };
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+
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+ template <>
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+ struct VoidToDefaultVoid<void> { typedef DefaultVoid type; };
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+
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+
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+
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+ ////////////////////////////////////////////////////////////////////////////////
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+ // Fast Delegates, part 1:
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+ //
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+ // Conversion of member function pointer to a standard form
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+ //
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+ ////////////////////////////////////////////////////////////////////////////////
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+
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+ // GenericClass is a fake class, ONLY used to provide a type.
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+ // It is vitally important that it is never defined, so that the compiler doesn't
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+ // think it can optimize the invocation. For example, Borland generates simpler
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+ // code if it knows the class only uses single inheritance.
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+
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+ // Compilers using Microsoft's structure need to be treated as a special case.
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+#ifdef FASTDLGT_MICROSOFT_MFP
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+
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+#ifdef FASTDLGT_HASINHERITANCE_KEYWORDS
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+ // For Microsoft and Intel, we want to ensure that it's the most efficient type of MFP
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+ // (4 bytes), even when the /vmg option is used. Declaring an empty class
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+ // would give 16 byte pointers in this case....
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+ class __single_inheritance GenericClass;
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+#endif
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+ // ...but for Codeplay, an empty class *always* gives 4 byte pointers.
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+ // If compiled with the /clr option ("managed C++"), the JIT compiler thinks
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+ // it needs to load GenericClass before it can call any of its functions,
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+ // (compiles OK but crashes at runtime!), so we need to declare an
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+ // empty class to make it happy.
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+ // Codeplay and VC4 can't cope with the unknown_inheritance case either.
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+ class GenericClass {};
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+#else
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+ class GenericClass;
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+#endif
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+
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+ // The size of a single inheritance member function pointer.
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+ const int SINGLE_MEMFUNCPTR_SIZE = sizeof(void (GenericClass::*)());
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+
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+ // SimplifyMemFunc< >::Convert()
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+ //
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+ // A template function that converts an arbitrary member function pointer into the
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+ // simplest possible form of member function pointer, using a supplied 'this' pointer.
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+ // According to the standard, this can be done legally with reinterpret_cast<>.
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+ // For (non-standard) compilers which use member function pointers which vary in size
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+ // depending on the class, we need to use knowledge of the internal structure of a
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+ // member function pointer, as used by the compiler. Template specialization is used
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+ // to distinguish between the sizes. Because some compilers don't support partial
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+ // template specialisation, I use full specialisation of a wrapper struct.
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+
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+ // general case -- don't know how to convert it. Force a compile failure
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+ template <int N>
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+ struct SimplifyMemFunc {
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+ template <class X, class XFuncType, class GenericMemFuncType>
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+ inline static GenericClass* Convert(X* pthis, XFuncType function_to_bind,
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+ GenericMemFuncType& bound_func) {
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+ // Unsupported member function type -- force a compile failure.
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+ // (it's illegal to have a array with negative size).
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+ typedef char ERROR_Unsupported_member_function_pointer_on_this_compiler[N - 100];
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+ return 0;
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+ }
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+ };
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+
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+ // For compilers where all member func ptrs are the same size, everything goes here.
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+ // For non-standard compilers, only single_inheritance classes go here.
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+ template <>
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+ struct SimplifyMemFunc<SINGLE_MEMFUNCPTR_SIZE> {
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+ template <class X, class XFuncType, class GenericMemFuncType>
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+ inline static GenericClass* Convert(X* pthis, XFuncType function_to_bind,
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+ GenericMemFuncType& bound_func) {
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+#if defined __DMC__
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+ // Digital Mars doesn't allow you to cast between abitrary PMF's,
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+ // even though the standard says you can. The 32-bit compiler lets you
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+ // static_cast through an int, but the DOS compiler doesn't.
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+ bound_func = horrible_cast<GenericMemFuncType>(function_to_bind);
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+#else
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+ bound_func = reinterpret_cast<GenericMemFuncType>(function_to_bind);
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+#endif
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+ return reinterpret_cast<GenericClass*>(pthis);
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+ }
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+ };
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+
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+ ////////////////////////////////////////////////////////////////////////////////
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+ // Fast Delegates, part 1b:
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+ //
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+ // Workarounds for Microsoft and Intel
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+ //
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+ ////////////////////////////////////////////////////////////////////////////////
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+
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+
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+ // Compilers with member function pointers which violate the standard (MSVC, Intel, Codeplay),
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+ // need to be treated as a special case.
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+#ifdef FASTDLGT_MICROSOFT_MFP
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+
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+// We use unions to perform horrible_casts. I would like to use #pragma pack(push, 1)
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+// at the start of each function for extra safety, but VC6 seems to ICE
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+// intermittently if you do this inside a template.
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+
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+// __multiple_inheritance classes go here
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+// Nasty hack for Microsoft and Intel (IA32 and Itanium)
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+ template<>
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+ struct SimplifyMemFunc< SINGLE_MEMFUNCPTR_SIZE + sizeof(int) > {
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+ template <class X, class XFuncType, class GenericMemFuncType>
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+ inline static GenericClass* Convert(X* pthis, XFuncType function_to_bind,
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+ GenericMemFuncType& bound_func) {
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+ // We need to use a horrible_cast to do this conversion.
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+ // In MSVC, a multiple inheritance member pointer is internally defined as:
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+ union {
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+ XFuncType func;
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+ struct {
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+ GenericMemFuncType funcaddress; // points to the actual member function
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+ int delta; // #BYTES to be added to the 'this' pointer
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+ }s;
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+ } u;
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+ // Check that the horrible_cast will work
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+ typedef int ERROR_CantUsehorrible_cast[sizeof(function_to_bind) == sizeof(u.s) ? 1 : -1];
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+ u.func = function_to_bind;
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+ bound_func = u.s.funcaddress;
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+ return reinterpret_cast<GenericClass*>(reinterpret_cast<char*>(pthis) + u.s.delta);
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+ }
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+ };
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+
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+ // virtual inheritance is a real nuisance. It's inefficient and complicated.
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+ // On MSVC and Intel, there isn't enough information in the pointer itself to
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+ // enable conversion to a closure pointer. Earlier versions of this code didn't
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+ // work for all cases, and generated a compile-time error instead.
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+ // But a very clever hack invented by John M. Dlugosz solves this problem.
|
|
|
+ // My code is somewhat different to his: I have no asm code, and I make no
|
|
|
+ // assumptions about the calling convention that is used.
|
|
|
+
|
|
|
+ // In VC++ and ICL, a virtual_inheritance member pointer
|
|
|
+ // is internally defined as:
|
|
|
+ struct MicrosoftVirtualMFP {
|
|
|
+ void (GenericClass::* codeptr)(); // points to the actual member function
|
|
|
+ int delta; // #bytes to be added to the 'this' pointer
|
|
|
+ int vtable_index; // or 0 if no virtual inheritance
|
|
|
+ };
|
|
|
+ // The CRUCIAL feature of Microsoft/Intel MFPs which we exploit is that the
|
|
|
+ // m_codeptr member is *always* called, regardless of the values of the other
|
|
|
+ // members. (This is *not* true for other compilers, eg GCC, which obtain the
|
|
|
+ // function address from the vtable if a virtual function is being called).
|
|
|
+ // Dlugosz's trick is to make the codeptr point to a probe function which
|
|
|
+ // returns the 'this' pointer that was used.
|
|
|
+
|
|
|
+ // Define a generic class that uses virtual inheritance.
|
|
|
+ // It has a trival member function that returns the value of the 'this' pointer.
|
|
|
+ struct GenericVirtualClass : virtual public GenericClass
|
|
|
+ {
|
|
|
+ typedef GenericVirtualClass* (GenericVirtualClass::* ProbePtrType)();
|
|
|
+ GenericVirtualClass* GetThis() { return this; }
|
|
|
+ };
|
|
|
+
|
|
|
+ // __virtual_inheritance classes go here
|
|
|
+ template <>
|
|
|
+ struct SimplifyMemFunc<SINGLE_MEMFUNCPTR_SIZE + 2 * sizeof(int) >
|
|
|
+ {
|
|
|
+
|
|
|
+ template <class X, class XFuncType, class GenericMemFuncType>
|
|
|
+ inline static GenericClass* Convert(X* pthis, XFuncType function_to_bind,
|
|
|
+ GenericMemFuncType& bound_func) {
|
|
|
+ union {
|
|
|
+ XFuncType func;
|
|
|
+ GenericClass* (X::* ProbeFunc)();
|
|
|
+ MicrosoftVirtualMFP s;
|
|
|
+ } u;
|
|
|
+ u.func = function_to_bind;
|
|
|
+ bound_func = reinterpret_cast<GenericMemFuncType>(u.s.codeptr);
|
|
|
+ union {
|
|
|
+ GenericVirtualClass::ProbePtrType virtfunc;
|
|
|
+ MicrosoftVirtualMFP s;
|
|
|
+ } u2;
|
|
|
+ // Check that the horrible_cast<>s will work
|
|
|
+ typedef int ERROR_CantUsehorrible_cast[sizeof(function_to_bind) == sizeof(u.s)
|
|
|
+ && sizeof(function_to_bind) == sizeof(u.ProbeFunc)
|
|
|
+ && sizeof(u2.virtfunc) == sizeof(u2.s) ? 1 : -1];
|
|
|
+ // Unfortunately, taking the address of a MF prevents it from being inlined, so
|
|
|
+ // this next line can't be completely optimised away by the compiler.
|
|
|
+ u2.virtfunc = &GenericVirtualClass::GetThis;
|
|
|
+ u.s.codeptr = u2.s.codeptr;
|
|
|
+ return (pthis->*u.ProbeFunc)();
|
|
|
+ }
|
|
|
+ };
|
|
|
+
|
|
|
+#if (_MSC_VER <1300)
|
|
|
+
|
|
|
+ // Nasty hack for Microsoft Visual C++ 6.0
|
|
|
+ // unknown_inheritance classes go here
|
|
|
+ // There is a compiler bug in MSVC6 which generates incorrect code in this case!!
|
|
|
+ template <>
|
|
|
+ struct SimplifyMemFunc<SINGLE_MEMFUNCPTR_SIZE + 3 * sizeof(int) >
|
|
|
+ {
|
|
|
+ template <class X, class XFuncType, class GenericMemFuncType>
|
|
|
+ inline static GenericClass* Convert(X* pthis, XFuncType function_to_bind,
|
|
|
+ GenericMemFuncType& bound_func) {
|
|
|
+ // There is an apalling but obscure compiler bug in MSVC6 and earlier:
|
|
|
+ // vtable_index and 'vtordisp' are always set to 0 in the
|
|
|
+ // unknown_inheritance case!
|
|
|
+ // This means that an incorrect function could be called!!!
|
|
|
+ // Compiling with the /vmg option leads to potentially incorrect code.
|
|
|
+ // This is probably the reason that the IDE has a user interface for specifying
|
|
|
+ // the /vmg option, but it is disabled - you can only specify /vmg on
|
|
|
+ // the command line. In VC1.5 and earlier, the compiler would ICE if it ever
|
|
|
+ // encountered this situation.
|
|
|
+ // It is OK to use the /vmg option if /vmm or /vms is specified.
|
|
|
+
|
|
|
+ // Fortunately, the wrong function is only called in very obscure cases.
|
|
|
+ // It only occurs when a derived class overrides a virtual function declared
|
|
|
+ // in a virtual base class, and the member function
|
|
|
+ // points to the *Derived* version of that function. The problem can be
|
|
|
+ // completely averted in 100% of cases by using the *Base class* for the
|
|
|
+ // member fpointer. Ie, if you use the base class as an interface, you'll
|
|
|
+ // stay out of trouble.
|
|
|
+ // Occasionally, you might want to point directly to a derived class function
|
|
|
+ // that isn't an override of a base class. In this case, both vtable_index
|
|
|
+ // and 'vtordisp' are zero, but a virtual_inheritance pointer will be generated.
|
|
|
+ // We can generate correct code in this case. To prevent an incorrect call from
|
|
|
+ // ever being made, on MSVC6 we generate a warning, and call a function to
|
|
|
+ // make the program crash instantly.
|
|
|
+ typedef char ERROR_VC6CompilerBug[-100];
|
|
|
+ return 0;
|
|
|
+ }
|
|
|
+ };
|
|
|
+
|
|
|
+
|
|
|
+#else
|
|
|
+
|
|
|
+ // Nasty hack for Microsoft and Intel (IA32 and Itanium)
|
|
|
+ // unknown_inheritance classes go here
|
|
|
+ // This is probably the ugliest bit of code I've ever written. Look at the casts!
|
|
|
+ // There is a compiler bug in MSVC6 which prevents it from using this code.
|
|
|
+ template <>
|
|
|
+ struct SimplifyMemFunc<SINGLE_MEMFUNCPTR_SIZE + 3 * sizeof(int) >
|
|
|
+ {
|
|
|
+ template <class X, class XFuncType, class GenericMemFuncType>
|
|
|
+ inline static GenericClass* Convert(X* pthis, XFuncType function_to_bind,
|
|
|
+ GenericMemFuncType& bound_func) {
|
|
|
+ // The member function pointer is 16 bytes long. We can't use a normal cast, but
|
|
|
+ // we can use a union to do the conversion.
|
|
|
+ union {
|
|
|
+ XFuncType func;
|
|
|
+ // In VC++ and ICL, an unknown_inheritance member pointer
|
|
|
+ // is internally defined as:
|
|
|
+ struct {
|
|
|
+ GenericMemFuncType m_funcaddress; // points to the actual member function
|
|
|
+ int delta; // #bytes to be added to the 'this' pointer
|
|
|
+ int vtordisp; // #bytes to add to 'this' to find the vtable
|
|
|
+ int vtable_index; // or 0 if no virtual inheritance
|
|
|
+ } s;
|
|
|
+ } u;
|
|
|
+ // Check that the horrible_cast will work
|
|
|
+ typedef int ERROR_CantUsehorrible_cast[sizeof(XFuncType) == sizeof(u.s) ? 1 : -1];
|
|
|
+ u.func = function_to_bind;
|
|
|
+ bound_func = u.s.funcaddress;
|
|
|
+ int virtual_delta = 0;
|
|
|
+ if (u.s.vtable_index) { // Virtual inheritance is used
|
|
|
+ // First, get to the vtable.
|
|
|
+ // It is 'vtordisp' bytes from the start of the class.
|
|
|
+ const int* vtable = *reinterpret_cast<const int* const*>(
|
|
|
+ reinterpret_cast<const char*>(pthis) + u.s.vtordisp);
|
|
|
+
|
|
|
+ // 'vtable_index' tells us where in the table we should be looking.
|
|
|
+ virtual_delta = u.s.vtordisp + *reinterpret_cast<const int*>(
|
|
|
+ reinterpret_cast<const char*>(vtable) + u.s.vtable_index);
|
|
|
+ }
|
|
|
+ // The int at 'virtual_delta' gives us the amount to add to 'this'.
|
|
|
+ // Finally we can add the three components together. Phew!
|
|
|
+ return reinterpret_cast<GenericClass*>(
|
|
|
+ reinterpret_cast<char*>(pthis) + u.s.delta + virtual_delta);
|
|
|
+ };
|
|
|
+ };
|
|
|
+#endif // MSVC 7 and greater
|
|
|
+
|
|
|
+#endif // MS/Intel hacks
|
|
|
+
|
|
|
+ } // namespace detail
|
|
|
+
|
|
|
+ ////////////////////////////////////////////////////////////////////////////////
|
|
|
+ // Fast Delegates, part 2:
|
|
|
+ //
|
|
|
+ // Define the delegate storage, and cope with static functions
|
|
|
+ //
|
|
|
+ ////////////////////////////////////////////////////////////////////////////////
|
|
|
+
|
|
|
+ // DelegateMemento -- an opaque structure which can hold an arbitary delegate.
|
|
|
+ // It knows nothing about the calling convention or number of arguments used by
|
|
|
+ // the function pointed to.
|
|
|
+ // It supplies comparison operators so that it can be stored in STL collections.
|
|
|
+ // It cannot be set to anything other than null, nor invoked directly:
|
|
|
+ // it must be converted to a specific delegate.
|
|
|
+
|
|
|
+ // Implementation:
|
|
|
+ // There are two possible implementations: the Safe method and the Evil method.
|
|
|
+ // DelegateMemento - Safe version
|
|
|
+ //
|
|
|
+ // This implementation is standard-compliant, but a bit tricky.
|
|
|
+ // A static function pointer is stored inside the class.
|
|
|
+ // Here are the valid values:
|
|
|
+ // +-- Static pointer --+--pThis --+-- pMemFunc-+-- Meaning------+
|
|
|
+ // | 0 | 0 | 0 | Empty |
|
|
|
+ // | !=0 |(dontcare)| Invoker | Static function|
|
|
|
+ // | 0 | !=0 | !=0* | Method call |
|
|
|
+ // +--------------------+----------+------------+----------------+
|
|
|
+ // * For Metrowerks, this can be 0. (first virtual function in a
|
|
|
+ // single_inheritance class).
|
|
|
+ // When stored stored inside a specific delegate, the 'dontcare' entries are replaced
|
|
|
+ // with a reference to the delegate itself. This complicates the = and == operators
|
|
|
+ // for the delegate class.
|
|
|
+
|
|
|
+ // DelegateMemento - Evil version
|
|
|
+ //
|
|
|
+ // For compilers where data pointers are at least as big as code pointers, it is
|
|
|
+ // possible to store the function pointer in the this pointer, using another
|
|
|
+ // horrible_cast. In this case the DelegateMemento implementation is simple:
|
|
|
+ // +--pThis --+-- pMemFunc-+-- Meaning---------------------+
|
|
|
+ // | 0 | 0 | Empty |
|
|
|
+ // | !=0 | !=0* | Static function or method call|
|
|
|
+ // +----------+------------+-------------------------------+
|
|
|
+ // * For Metrowerks, this can be 0. (first virtual function in a
|
|
|
+ // single_inheritance class).
|
|
|
+ // Note that the Sun C++ and MSVC documentation explicitly state that they
|
|
|
+ // support static_cast between void * and function pointers.
|
|
|
+
|
|
|
+ class DelegateMemento {
|
|
|
+ protected:
|
|
|
+ // the data is protected, not private, because many
|
|
|
+ // compilers have problems with template friends.
|
|
|
+ typedef void (detail::GenericClass::* GenericMemFuncType)(); // arbitrary MFP.
|
|
|
+ detail::GenericClass* m_pthis;
|
|
|
+ GenericMemFuncType m_pFunction;
|
|
|
+
|
|
|
+#if !defined(FASTDELEGATE_USESTATICFUNCTIONHACK)
|
|
|
+ typedef void (*GenericFuncPtr)(); // arbitrary code pointer
|
|
|
+ GenericFuncPtr m_pStaticFunction;
|
|
|
+#endif
|
|
|
+
|
|
|
+ public:
|
|
|
+#if !defined(FASTDELEGATE_USESTATICFUNCTIONHACK)
|
|
|
+ DelegateMemento() : m_pthis(0), m_pFunction(0), m_pStaticFunction(0) {};
|
|
|
+ void clear() {
|
|
|
+ m_pthis = 0; m_pFunction = 0; m_pStaticFunction = 0;
|
|
|
+ }
|
|
|
+#else
|
|
|
+ DelegateMemento() : m_pthis(0), m_pFunction(0) {};
|
|
|
+ void clear() { m_pthis = 0; m_pFunction = 0; }
|
|
|
+#endif
|
|
|
+ public:
|
|
|
+#if !defined(FASTDELEGATE_USESTATICFUNCTIONHACK)
|
|
|
+ inline bool IsEqual(const DelegateMemento& x) const {
|
|
|
+ // We have to cope with the static function pointers as a special case
|
|
|
+ if (m_pFunction != x.m_pFunction) return false;
|
|
|
+ // the static function ptrs must either both be equal, or both be 0.
|
|
|
+ if (m_pStaticFunction != x.m_pStaticFunction) return false;
|
|
|
+ if (m_pStaticFunction != 0) return m_pthis == x.m_pthis;
|
|
|
+ else return true;
|
|
|
+ }
|
|
|
+#else // Evil Method
|
|
|
+ inline bool IsEqual(const DelegateMemento& x) const {
|
|
|
+ return m_pthis == x.m_pthis && m_pFunction == x.m_pFunction;
|
|
|
+ }
|
|
|
+#endif
|
|
|
+ // Provide a strict weak ordering for DelegateMementos.
|
|
|
+ inline bool IsLess(const DelegateMemento& right) const {
|
|
|
+ // deal with static function pointers first
|
|
|
+#if !defined(FASTDELEGATE_USESTATICFUNCTIONHACK)
|
|
|
+ if (m_pStaticFunction != 0 || right.m_pStaticFunction != 0)
|
|
|
+ return m_pStaticFunction < right.m_pStaticFunction;
|
|
|
+#endif
|
|
|
+ if (m_pthis != right.m_pthis) return m_pthis < right.m_pthis;
|
|
|
+ // There are no ordering operators for member function pointers,
|
|
|
+ // but we can fake one by comparing each byte. The resulting ordering is
|
|
|
+ // arbitrary (and compiler-dependent), but it permits storage in ordered STL containers.
|
|
|
+ return memcmp(&m_pFunction, &right.m_pFunction, sizeof(m_pFunction)) < 0;
|
|
|
+
|
|
|
+ }
|
|
|
+ // BUGFIX (Mar 2005):
|
|
|
+ // We can't just compare m_pFunction because on Metrowerks,
|
|
|
+ // m_pFunction can be zero even if the delegate is not empty!
|
|
|
+ inline bool operator ! () const // Is it bound to anything?
|
|
|
+ {
|
|
|
+ return m_pthis == 0 && m_pFunction == 0;
|
|
|
+ }
|
|
|
+ inline bool empty() const // Is it bound to anything?
|
|
|
+ {
|
|
|
+ return m_pthis == 0 && m_pFunction == 0;
|
|
|
+ }
|
|
|
+ public:
|
|
|
+ DelegateMemento& operator = (const DelegateMemento& right) {
|
|
|
+ SetMementoFrom(right);
|
|
|
+ return *this;
|
|
|
+ }
|
|
|
+ inline bool operator <(const DelegateMemento& right) {
|
|
|
+ return IsLess(right);
|
|
|
+ }
|
|
|
+ inline bool operator >(const DelegateMemento& right) {
|
|
|
+ return right.IsLess(*this);
|
|
|
+ }
|
|
|
+ DelegateMemento(const DelegateMemento& right) :
|
|
|
+ m_pFunction(right.m_pFunction), m_pthis(right.m_pthis)
|
|
|
+#if !defined(FASTDELEGATE_USESTATICFUNCTIONHACK)
|
|
|
+ , m_pStaticFunction(right.m_pStaticFunction)
|
|
|
+#endif
|
|
|
+ {
|
|
|
+ }
|
|
|
+ protected:
|
|
|
+ void SetMementoFrom(const DelegateMemento& right) {
|
|
|
+ m_pFunction = right.m_pFunction;
|
|
|
+ m_pthis = right.m_pthis;
|
|
|
+#if !defined(FASTDELEGATE_USESTATICFUNCTIONHACK)
|
|
|
+ m_pStaticFunction = right.m_pStaticFunction;
|
|
|
+#endif
|
|
|
+ }
|
|
|
+ };
|
|
|
+
|
|
|
+
|
|
|
+ // ClosurePtr<>
|
|
|
+ //
|
|
|
+ // A private wrapper class that adds function signatures to DelegateMemento.
|
|
|
+ // It's the class that does most of the actual work.
|
|
|
+ // The signatures are specified by:
|
|
|
+ // GenericMemFunc: must be a type of GenericClass member function pointer.
|
|
|
+ // StaticFuncPtr: must be a type of function pointer with the same signature
|
|
|
+ // as GenericMemFunc.
|
|
|
+ // UnvoidStaticFuncPtr: is the same as StaticFuncPtr, except on VC6
|
|
|
+ // where it never returns void (returns DefaultVoid instead).
|
|
|
+
|
|
|
+ // An outer class, FastDelegateN<>, handles the invoking and creates the
|
|
|
+ // necessary typedefs.
|
|
|
+ // This class does everything else.
|
|
|
+
|
|
|
+ namespace detail {
|
|
|
+
|
|
|
+ template < class GenericMemFunc, class StaticFuncPtr, class UnvoidStaticFuncPtr>
|
|
|
+ class ClosurePtr : public DelegateMemento {
|
|
|
+ public:
|
|
|
+ // These functions are for setting the delegate to a member function.
|
|
|
+
|
|
|
+ // Here's the clever bit: we convert an arbitrary member function into a
|
|
|
+ // standard form. XMemFunc should be a member function of class X, but I can't
|
|
|
+ // enforce that here. It needs to be enforced by the wrapper class.
|
|
|
+ template < class X, class XMemFunc >
|
|
|
+ inline void bindmemfunc(X* pthis, XMemFunc function_to_bind) {
|
|
|
+ m_pthis = SimplifyMemFunc< sizeof(function_to_bind) >
|
|
|
+ ::Convert(pthis, function_to_bind, m_pFunction);
|
|
|
+#if !defined(FASTDELEGATE_USESTATICFUNCTIONHACK)
|
|
|
+ m_pStaticFunction = 0;
|
|
|
+#endif
|
|
|
+ }
|
|
|
+ // For const member functions, we only need a const class pointer.
|
|
|
+ // Since we know that the member function is const, it's safe to
|
|
|
+ // remove the const qualifier from the 'this' pointer with a const_cast.
|
|
|
+ // VC6 has problems if we just overload 'bindmemfunc', so we give it a different name.
|
|
|
+ template < class X, class XMemFunc>
|
|
|
+ inline void bindconstmemfunc(const X* pthis, XMemFunc function_to_bind) {
|
|
|
+ m_pthis = SimplifyMemFunc< sizeof(function_to_bind) >
|
|
|
+ ::Convert(const_cast<X*>(pthis), function_to_bind, m_pFunction);
|
|
|
+#if !defined(FASTDELEGATE_USESTATICFUNCTIONHACK)
|
|
|
+ m_pStaticFunction = 0;
|
|
|
+#endif
|
|
|
+ }
|
|
|
+#ifdef FASTDELEGATE_GCC_BUG_8271 // At present, GCC doesn't recognize constness of MFPs in templates
|
|
|
+ template < class X, class XMemFunc>
|
|
|
+ inline void bindmemfunc(const X* pthis, XMemFunc function_to_bind) {
|
|
|
+ bindconstmemfunc(pthis, function_to_bind);
|
|
|
+#if !defined(FASTDELEGATE_USESTATICFUNCTIONHACK)
|
|
|
+ m_pStaticFunction = 0;
|
|
|
+#endif
|
|
|
+ }
|
|
|
+#endif
|
|
|
+ // These functions are required for invoking the stored function
|
|
|
+ inline GenericClass* GetClosureThis() const { return m_pthis; }
|
|
|
+ inline GenericMemFunc GetClosureMemPtr() const { return reinterpret_cast<GenericMemFunc>(m_pFunction); }
|
|
|
+
|
|
|
+ // There are a few ways of dealing with static function pointers.
|
|
|
+ // There's a standard-compliant, but tricky method.
|
|
|
+ // There's also a straightforward hack, that won't work on DOS compilers using the
|
|
|
+ // medium memory model. It's so evil that I can't recommend it, but I've
|
|
|
+ // implemented it anyway because it produces very nice asm code.
|
|
|
+
|
|
|
+#if !defined(FASTDELEGATE_USESTATICFUNCTIONHACK)
|
|
|
+
|
|
|
+// ClosurePtr<> - Safe version
|
|
|
+//
|
|
|
+// This implementation is standard-compliant, but a bit tricky.
|
|
|
+// I store the function pointer inside the class, and the delegate then
|
|
|
+// points to itself. Whenever the delegate is copied, these self-references
|
|
|
+// must be transformed, and this complicates the = and == operators.
|
|
|
+ public:
|
|
|
+ // The next two functions are for operator ==, =, and the copy constructor.
|
|
|
+ // We may need to convert the m_pthis pointers, so that
|
|
|
+ // they remain as self-references.
|
|
|
+ template< class DerivedClass >
|
|
|
+ inline void CopyFrom(DerivedClass* pParent, const DelegateMemento& x) {
|
|
|
+ SetMementoFrom(x);
|
|
|
+ if (m_pStaticFunction != 0) {
|
|
|
+ // transform self references...
|
|
|
+ m_pthis = reinterpret_cast<GenericClass*>(pParent);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ // For static functions, the 'static_function_invoker' class in the parent
|
|
|
+ // will be called. The parent then needs to call GetStaticFunction() to find out
|
|
|
+ // the actual function to invoke.
|
|
|
+ template < class DerivedClass, class ParentInvokerSig >
|
|
|
+ inline void bindstaticfunc(DerivedClass* pParent, ParentInvokerSig static_function_invoker,
|
|
|
+ StaticFuncPtr function_to_bind) {
|
|
|
+ if (function_to_bind == 0) { // cope with assignment to 0
|
|
|
+ m_pFunction = 0;
|
|
|
+ }
|
|
|
+ else {
|
|
|
+ bindmemfunc(pParent, static_function_invoker);
|
|
|
+ }
|
|
|
+ m_pStaticFunction = reinterpret_cast<GenericFuncPtr>(function_to_bind);
|
|
|
+ }
|
|
|
+ inline UnvoidStaticFuncPtr GetStaticFunction() const {
|
|
|
+ return reinterpret_cast<UnvoidStaticFuncPtr>(m_pStaticFunction);
|
|
|
+ }
|
|
|
+#else
|
|
|
+
|
|
|
+// ClosurePtr<> - Evil version
|
|
|
+//
|
|
|
+// For compilers where data pointers are at least as big as code pointers, it is
|
|
|
+// possible to store the function pointer in the this pointer, using another
|
|
|
+// horrible_cast. Invocation isn't any faster, but it saves 4 bytes, and
|
|
|
+// speeds up comparison and assignment. If C++ provided direct language support
|
|
|
+// for delegates, they would produce asm code that was almost identical to this.
|
|
|
+// Note that the Sun C++ and MSVC documentation explicitly state that they
|
|
|
+// support static_cast between void * and function pointers.
|
|
|
+
|
|
|
+ template< class DerivedClass >
|
|
|
+ inline void CopyFrom(DerivedClass* pParent, const DelegateMemento& right) {
|
|
|
+ SetMementoFrom(right);
|
|
|
+ }
|
|
|
+ // For static functions, the 'static_function_invoker' class in the parent
|
|
|
+ // will be called. The parent then needs to call GetStaticFunction() to find out
|
|
|
+ // the actual function to invoke.
|
|
|
+ // ******** EVIL, EVIL CODE! *******
|
|
|
+ template < class DerivedClass, class ParentInvokerSig>
|
|
|
+ inline void bindstaticfunc(DerivedClass* pParent, ParentInvokerSig static_function_invoker,
|
|
|
+ StaticFuncPtr function_to_bind) {
|
|
|
+ if (function_to_bind == 0) { // cope with assignment to 0
|
|
|
+ m_pFunction = 0;
|
|
|
+ }
|
|
|
+ else {
|
|
|
+ // We'll be ignoring the 'this' pointer, but we need to make sure we pass
|
|
|
+ // a valid value to bindmemfunc().
|
|
|
+ bindmemfunc(pParent, static_function_invoker);
|
|
|
+ }
|
|
|
+
|
|
|
+ // WARNING! Evil hack. We store the function in the 'this' pointer!
|
|
|
+ // Ensure that there's a compilation failure if function pointers
|
|
|
+ // and data pointers have different sizes.
|
|
|
+ // If you get this error, you need to #undef FASTDELEGATE_USESTATICFUNCTIONHACK.
|
|
|
+ typedef int ERROR_CantUseEvilMethod[sizeof(GenericClass*) == sizeof(function_to_bind) ? 1 : -1];
|
|
|
+ m_pthis = horrible_cast<GenericClass*>(function_to_bind);
|
|
|
+ // MSVC, SunC++ and DMC accept the following (non-standard) code:
|
|
|
+ // m_pthis = static_cast<GenericClass *>(static_cast<void *>(function_to_bind));
|
|
|
+ // BCC32, Comeau and DMC accept this method. MSVC7.1 needs __int64 instead of long
|
|
|
+ // m_pthis = reinterpret_cast<GenericClass *>(reinterpret_cast<long>(function_to_bind));
|
|
|
+ }
|
|
|
+ // ******** EVIL, EVIL CODE! *******
|
|
|
+ // This function will be called with an invalid 'this' pointer!!
|
|
|
+ // We're just returning the 'this' pointer, converted into
|
|
|
+ // a function pointer!
|
|
|
+ inline UnvoidStaticFuncPtr GetStaticFunction() const {
|
|
|
+ // Ensure that there's a compilation failure if function pointers
|
|
|
+ // and data pointers have different sizes.
|
|
|
+ // If you get this error, you need to #undef FASTDELEGATE_USESTATICFUNCTIONHACK.
|
|
|
+ typedef int ERROR_CantUseEvilMethod[sizeof(UnvoidStaticFuncPtr) == sizeof(this) ? 1 : -1];
|
|
|
+ return horrible_cast<UnvoidStaticFuncPtr>(this);
|
|
|
+ }
|
|
|
+#endif // !defined(FASTDELEGATE_USESTATICFUNCTIONHACK)
|
|
|
+
|
|
|
+ // Does the closure contain this static function?
|
|
|
+ inline bool IsEqualToStaticFuncPtr(StaticFuncPtr funcptr) {
|
|
|
+ if (funcptr == 0) return empty();
|
|
|
+ // For the Evil method, if it doesn't actually contain a static function, this will return an arbitrary
|
|
|
+ // value that is not equal to any valid function pointer.
|
|
|
+ else return funcptr == reinterpret_cast<StaticFuncPtr>(GetStaticFunction());
|
|
|
+ }
|
|
|
+ };
|
|
|
+
|
|
|
+
|
|
|
+ } // namespace detail
|
|
|
+
|
|
|
+ ////////////////////////////////////////////////////////////////////////////////
|
|
|
+ // Fast Delegates, part 3:
|
|
|
+ //
|
|
|
+ // Wrapper classes to ensure type safety
|
|
|
+ //
|
|
|
+ ////////////////////////////////////////////////////////////////////////////////
|
|
|
+
|
|
|
+
|
|
|
+ // Once we have the member function conversion templates, it's easy to make the
|
|
|
+ // wrapper classes. So that they will work with as many compilers as possible,
|
|
|
+ // the classes are of the form
|
|
|
+ // FastDelegate3<int, char *, double>
|
|
|
+ // They can cope with any combination of parameters. The max number of parameters
|
|
|
+ // allowed is 8, but it is trivial to increase this limit.
|
|
|
+ // Note that we need to treat const member functions seperately.
|
|
|
+ // All this class does is to enforce type safety, and invoke the delegate with
|
|
|
+ // the correct list of parameters.
|
|
|
+
|
|
|
+ // Because of the weird rule about the class of derived member function pointers,
|
|
|
+ // you sometimes need to apply a downcast to the 'this' pointer.
|
|
|
+ // This is the reason for the use of "implicit_cast<X*>(pthis)" in the code below.
|
|
|
+ // If CDerivedClass is derived from CBaseClass, but doesn't override SimpleVirtualFunction,
|
|
|
+ // without this trick you'd need to write:
|
|
|
+ // MyDelegate(static_cast<CBaseClass *>(&d), &CDerivedClass::SimpleVirtualFunction);
|
|
|
+ // but with the trick you can write
|
|
|
+ // MyDelegate(&d, &CDerivedClass::SimpleVirtualFunction);
|
|
|
+
|
|
|
+ // RetType is the type the compiler uses in compiling the template. For VC6,
|
|
|
+ // it cannot be void. DesiredRetType is the real type which is returned from
|
|
|
+ // all of the functions. It can be void.
|
|
|
+
|
|
|
+ // Implicit conversion to "bool" is achieved using the safe_bool idiom,
|
|
|
+ // using member data pointers (MDP). This allows "if (dg)..." syntax
|
|
|
+ // Because some compilers (eg codeplay) don't have a unique value for a zero
|
|
|
+ // MDP, an extra padding member is added to the SafeBool struct.
|
|
|
+ // Some compilers (eg VC6) won't implicitly convert from 0 to an MDP, so
|
|
|
+ // in that case the static function constructor is not made explicit; this
|
|
|
+ // allows "if (dg==0) ..." to compile.
|
|
|
+
|
|
|
+ //N=0
|
|
|
+ template<class RetType = detail::DefaultVoid>
|
|
|
+ class FastDelegate0 {
|
|
|
+ private:
|
|
|
+ typedef typename detail::DefaultVoidToVoid<RetType>::type DesiredRetType;
|
|
|
+ typedef DesiredRetType(*StaticFunctionPtr)();
|
|
|
+ typedef RetType(*UnvoidStaticFunctionPtr)();
|
|
|
+ typedef RetType(detail::GenericClass::* GenericMemFn)();
|
|
|
+ typedef detail::ClosurePtr<GenericMemFn, StaticFunctionPtr, UnvoidStaticFunctionPtr> ClosureType;
|
|
|
+ ClosureType m_Closure;
|
|
|
+ public:
|
|
|
+ // Typedefs to aid generic programming
|
|
|
+ typedef FastDelegate0 type;
|
|
|
+
|
|
|
+ // Construction and comparison functions
|
|
|
+ FastDelegate0() { clear(); }
|
|
|
+ FastDelegate0(const FastDelegate0& x) {
|
|
|
+ m_Closure.CopyFrom(this, x.m_Closure);
|
|
|
+ }
|
|
|
+ void operator = (const FastDelegate0& x) {
|
|
|
+ m_Closure.CopyFrom(this, x.m_Closure);
|
|
|
+ }
|
|
|
+ bool operator ==(const FastDelegate0& x) const {
|
|
|
+ return m_Closure.IsEqual(x.m_Closure);
|
|
|
+ }
|
|
|
+ bool operator !=(const FastDelegate0& x) const {
|
|
|
+ return !m_Closure.IsEqual(x.m_Closure);
|
|
|
+ }
|
|
|
+ bool operator <(const FastDelegate0& x) const {
|
|
|
+ return m_Closure.IsLess(x.m_Closure);
|
|
|
+ }
|
|
|
+ bool operator >(const FastDelegate0& x) const {
|
|
|
+ return x.m_Closure.IsLess(m_Closure);
|
|
|
+ }
|
|
|
+ // Binding to non-const member functions
|
|
|
+ template < class X, class Y >
|
|
|
+ FastDelegate0(Y* pthis, DesiredRetType(X::* function_to_bind)()) {
|
|
|
+ m_Closure.bindmemfunc(detail::implicit_cast<X*>(pthis), function_to_bind);
|
|
|
+ }
|
|
|
+ template < class X, class Y >
|
|
|
+ inline void bind(Y* pthis, DesiredRetType(X::* function_to_bind)()) {
|
|
|
+ m_Closure.bindmemfunc(detail::implicit_cast<X*>(pthis), function_to_bind);
|
|
|
+ }
|
|
|
+ // Binding to const member functions.
|
|
|
+ template < class X, class Y >
|
|
|
+ FastDelegate0(const Y* pthis, DesiredRetType(X::* function_to_bind)() const) {
|
|
|
+ m_Closure.bindconstmemfunc(detail::implicit_cast<const X*>(pthis), function_to_bind);
|
|
|
+ }
|
|
|
+ template < class X, class Y >
|
|
|
+ inline void bind(const Y* pthis, DesiredRetType(X::* function_to_bind)() const) {
|
|
|
+ m_Closure.bindconstmemfunc(detail::implicit_cast<const X*>(pthis), function_to_bind);
|
|
|
+ }
|
|
|
+ // Static functions. We convert them into a member function call.
|
|
|
+ // This constructor also provides implicit conversion
|
|
|
+ FastDelegate0(DesiredRetType(*function_to_bind)()) {
|
|
|
+ bind(function_to_bind);
|
|
|
+ }
|
|
|
+ // for efficiency, prevent creation of a temporary
|
|
|
+ void operator = (DesiredRetType(*function_to_bind)()) {
|
|
|
+ bind(function_to_bind);
|
|
|
+ }
|
|
|
+ inline void bind(DesiredRetType(*function_to_bind)()) {
|
|
|
+ m_Closure.bindstaticfunc(this, &FastDelegate0::InvokeStaticFunction,
|
|
|
+ function_to_bind);
|
|
|
+ }
|
|
|
+ // Invoke the delegate
|
|
|
+ RetType operator() () const {
|
|
|
+ return (m_Closure.GetClosureThis()->*(m_Closure.GetClosureMemPtr()))();
|
|
|
+ }
|
|
|
+ // Implicit conversion to "bool" using the safe_bool idiom
|
|
|
+ private:
|
|
|
+ typedef struct SafeBoolStruct {
|
|
|
+ int a_data_pointer_to_this_is_0_on_buggy_compilers;
|
|
|
+ StaticFunctionPtr m_nonzero;
|
|
|
+ } UselessTypedef;
|
|
|
+ typedef StaticFunctionPtr SafeBoolStruct::* unspecified_bool_type;
|
|
|
+ public:
|
|
|
+ operator unspecified_bool_type() const {
|
|
|
+ return empty() ? 0 : &SafeBoolStruct::m_nonzero;
|
|
|
+ }
|
|
|
+ // necessary to allow ==0 to work despite the safe_bool idiom
|
|
|
+ inline bool operator==(StaticFunctionPtr funcptr) {
|
|
|
+ return m_Closure.IsEqualToStaticFuncPtr(funcptr);
|
|
|
+ }
|
|
|
+ inline bool operator!=(StaticFunctionPtr funcptr) {
|
|
|
+ return !m_Closure.IsEqualToStaticFuncPtr(funcptr);
|
|
|
+ }
|
|
|
+ inline bool operator ! () const { // Is it bound to anything?
|
|
|
+ return !m_Closure;
|
|
|
+ }
|
|
|
+ inline bool empty() const {
|
|
|
+ return !m_Closure;
|
|
|
+ }
|
|
|
+ void clear() { m_Closure.clear(); }
|
|
|
+ // Conversion to and from the DelegateMemento storage class
|
|
|
+ const DelegateMemento& GetMemento() { return m_Closure; }
|
|
|
+ void SetMemento(const DelegateMemento& any) { m_Closure.CopyFrom(this, any); }
|
|
|
+
|
|
|
+ private: // Invoker for static functions
|
|
|
+ RetType InvokeStaticFunction() const {
|
|
|
+ return (*(m_Closure.GetStaticFunction()))();
|
|
|
+ }
|
|
|
+ };
|
|
|
+
|
|
|
+ //N=1
|
|
|
+ template<class Param1, class RetType = detail::DefaultVoid>
|
|
|
+ class FastDelegate1 {
|
|
|
+ private:
|
|
|
+ typedef typename detail::DefaultVoidToVoid<RetType>::type DesiredRetType;
|
|
|
+ typedef DesiredRetType(*StaticFunctionPtr)(Param1 p1);
|
|
|
+ typedef RetType(*UnvoidStaticFunctionPtr)(Param1 p1);
|
|
|
+ typedef RetType(detail::GenericClass::* GenericMemFn)(Param1 p1);
|
|
|
+ typedef detail::ClosurePtr<GenericMemFn, StaticFunctionPtr, UnvoidStaticFunctionPtr> ClosureType;
|
|
|
+ ClosureType m_Closure;
|
|
|
+ public:
|
|
|
+ // Typedefs to aid generic programming
|
|
|
+ typedef FastDelegate1 type;
|
|
|
+
|
|
|
+ // Construction and comparison functions
|
|
|
+ FastDelegate1() { clear(); }
|
|
|
+ FastDelegate1(const FastDelegate1& x) {
|
|
|
+ m_Closure.CopyFrom(this, x.m_Closure);
|
|
|
+ }
|
|
|
+ void operator = (const FastDelegate1& x) {
|
|
|
+ m_Closure.CopyFrom(this, x.m_Closure);
|
|
|
+ }
|
|
|
+ bool operator ==(const FastDelegate1& x) const {
|
|
|
+ return m_Closure.IsEqual(x.m_Closure);
|
|
|
+ }
|
|
|
+ bool operator !=(const FastDelegate1& x) const {
|
|
|
+ return !m_Closure.IsEqual(x.m_Closure);
|
|
|
+ }
|
|
|
+ bool operator <(const FastDelegate1& x) const {
|
|
|
+ return m_Closure.IsLess(x.m_Closure);
|
|
|
+ }
|
|
|
+ bool operator >(const FastDelegate1& x) const {
|
|
|
+ return x.m_Closure.IsLess(m_Closure);
|
|
|
+ }
|
|
|
+ // Binding to non-const member functions
|
|
|
+ template < class X, class Y >
|
|
|
+ FastDelegate1(Y* pthis, DesiredRetType(X::* function_to_bind)(Param1 p1)) {
|
|
|
+ m_Closure.bindmemfunc(detail::implicit_cast<X*>(pthis), function_to_bind);
|
|
|
+ }
|
|
|
+ template < class X, class Y >
|
|
|
+ inline void bind(Y* pthis, DesiredRetType(X::* function_to_bind)(Param1 p1)) {
|
|
|
+ m_Closure.bindmemfunc(detail::implicit_cast<X*>(pthis), function_to_bind);
|
|
|
+ }
|
|
|
+ // Binding to const member functions.
|
|
|
+ template < class X, class Y >
|
|
|
+ FastDelegate1(const Y* pthis, DesiredRetType(X::* function_to_bind)(Param1 p1) const) {
|
|
|
+ m_Closure.bindconstmemfunc(detail::implicit_cast<const X*>(pthis), function_to_bind);
|
|
|
+ }
|
|
|
+ template < class X, class Y >
|
|
|
+ inline void bind(const Y* pthis, DesiredRetType(X::* function_to_bind)(Param1 p1) const) {
|
|
|
+ m_Closure.bindconstmemfunc(detail::implicit_cast<const X*>(pthis), function_to_bind);
|
|
|
+ }
|
|
|
+ // Static functions. We convert them into a member function call.
|
|
|
+ // This constructor also provides implicit conversion
|
|
|
+ FastDelegate1(DesiredRetType(*function_to_bind)(Param1 p1)) {
|
|
|
+ bind(function_to_bind);
|
|
|
+ }
|
|
|
+ // for efficiency, prevent creation of a temporary
|
|
|
+ void operator = (DesiredRetType(*function_to_bind)(Param1 p1)) {
|
|
|
+ bind(function_to_bind);
|
|
|
+ }
|
|
|
+ inline void bind(DesiredRetType(*function_to_bind)(Param1 p1)) {
|
|
|
+ m_Closure.bindstaticfunc(this, &FastDelegate1::InvokeStaticFunction,
|
|
|
+ function_to_bind);
|
|
|
+ }
|
|
|
+ // Invoke the delegate
|
|
|
+ RetType operator() (Param1 p1) const {
|
|
|
+ return (m_Closure.GetClosureThis()->*(m_Closure.GetClosureMemPtr()))(p1);
|
|
|
+ }
|
|
|
+ // Implicit conversion to "bool" using the safe_bool idiom
|
|
|
+ private:
|
|
|
+ typedef struct SafeBoolStruct {
|
|
|
+ int a_data_pointer_to_this_is_0_on_buggy_compilers;
|
|
|
+ StaticFunctionPtr m_nonzero;
|
|
|
+ } UselessTypedef;
|
|
|
+ typedef StaticFunctionPtr SafeBoolStruct::* unspecified_bool_type;
|
|
|
+ public:
|
|
|
+ operator unspecified_bool_type() const {
|
|
|
+ return empty() ? 0 : &SafeBoolStruct::m_nonzero;
|
|
|
+ }
|
|
|
+ // necessary to allow ==0 to work despite the safe_bool idiom
|
|
|
+ inline bool operator==(StaticFunctionPtr funcptr) {
|
|
|
+ return m_Closure.IsEqualToStaticFuncPtr(funcptr);
|
|
|
+ }
|
|
|
+ inline bool operator!=(StaticFunctionPtr funcptr) {
|
|
|
+ return !m_Closure.IsEqualToStaticFuncPtr(funcptr);
|
|
|
+ }
|
|
|
+ inline bool operator ! () const { // Is it bound to anything?
|
|
|
+ return !m_Closure;
|
|
|
+ }
|
|
|
+ inline bool empty() const {
|
|
|
+ return !m_Closure;
|
|
|
+ }
|
|
|
+ void clear() { m_Closure.clear(); }
|
|
|
+ // Conversion to and from the DelegateMemento storage class
|
|
|
+ const DelegateMemento& GetMemento() { return m_Closure; }
|
|
|
+ void SetMemento(const DelegateMemento& any) { m_Closure.CopyFrom(this, any); }
|
|
|
+
|
|
|
+ private: // Invoker for static functions
|
|
|
+ RetType InvokeStaticFunction(Param1 p1) const {
|
|
|
+ return (*(m_Closure.GetStaticFunction()))(p1);
|
|
|
+ }
|
|
|
+ };
|
|
|
+
|
|
|
+ //N=2
|
|
|
+ template<class Param1, class Param2, class RetType = detail::DefaultVoid>
|
|
|
+ class FastDelegate2 {
|
|
|
+ private:
|
|
|
+ typedef typename detail::DefaultVoidToVoid<RetType>::type DesiredRetType;
|
|
|
+ typedef DesiredRetType(*StaticFunctionPtr)(Param1 p1, Param2 p2);
|
|
|
+ typedef RetType(*UnvoidStaticFunctionPtr)(Param1 p1, Param2 p2);
|
|
|
+ typedef RetType(detail::GenericClass::* GenericMemFn)(Param1 p1, Param2 p2);
|
|
|
+ typedef detail::ClosurePtr<GenericMemFn, StaticFunctionPtr, UnvoidStaticFunctionPtr> ClosureType;
|
|
|
+ ClosureType m_Closure;
|
|
|
+ public:
|
|
|
+ // Typedefs to aid generic programming
|
|
|
+ typedef FastDelegate2 type;
|
|
|
+
|
|
|
+ // Construction and comparison functions
|
|
|
+ FastDelegate2() { clear(); }
|
|
|
+ FastDelegate2(const FastDelegate2& x) {
|
|
|
+ m_Closure.CopyFrom(this, x.m_Closure);
|
|
|
+ }
|
|
|
+ void operator = (const FastDelegate2& x) {
|
|
|
+ m_Closure.CopyFrom(this, x.m_Closure);
|
|
|
+ }
|
|
|
+ bool operator ==(const FastDelegate2& x) const {
|
|
|
+ return m_Closure.IsEqual(x.m_Closure);
|
|
|
+ }
|
|
|
+ bool operator !=(const FastDelegate2& x) const {
|
|
|
+ return !m_Closure.IsEqual(x.m_Closure);
|
|
|
+ }
|
|
|
+ bool operator <(const FastDelegate2& x) const {
|
|
|
+ return m_Closure.IsLess(x.m_Closure);
|
|
|
+ }
|
|
|
+ bool operator >(const FastDelegate2& x) const {
|
|
|
+ return x.m_Closure.IsLess(m_Closure);
|
|
|
+ }
|
|
|
+ // Binding to non-const member functions
|
|
|
+ template < class X, class Y >
|
|
|
+ FastDelegate2(Y* pthis, DesiredRetType(X::* function_to_bind)(Param1 p1, Param2 p2)) {
|
|
|
+ m_Closure.bindmemfunc(detail::implicit_cast<X*>(pthis), function_to_bind);
|
|
|
+ }
|
|
|
+ template < class X, class Y >
|
|
|
+ inline void bind(Y* pthis, DesiredRetType(X::* function_to_bind)(Param1 p1, Param2 p2)) {
|
|
|
+ m_Closure.bindmemfunc(detail::implicit_cast<X*>(pthis), function_to_bind);
|
|
|
+ }
|
|
|
+ // Binding to const member functions.
|
|
|
+ template < class X, class Y >
|
|
|
+ FastDelegate2(const Y* pthis, DesiredRetType(X::* function_to_bind)(Param1 p1, Param2 p2) const) {
|
|
|
+ m_Closure.bindconstmemfunc(detail::implicit_cast<const X*>(pthis), function_to_bind);
|
|
|
+ }
|
|
|
+ template < class X, class Y >
|
|
|
+ inline void bind(const Y* pthis, DesiredRetType(X::* function_to_bind)(Param1 p1, Param2 p2) const) {
|
|
|
+ m_Closure.bindconstmemfunc(detail::implicit_cast<const X*>(pthis), function_to_bind);
|
|
|
+ }
|
|
|
+ // Static functions. We convert them into a member function call.
|
|
|
+ // This constructor also provides implicit conversion
|
|
|
+ FastDelegate2(DesiredRetType(*function_to_bind)(Param1 p1, Param2 p2)) {
|
|
|
+ bind(function_to_bind);
|
|
|
+ }
|
|
|
+ // for efficiency, prevent creation of a temporary
|
|
|
+ void operator = (DesiredRetType(*function_to_bind)(Param1 p1, Param2 p2)) {
|
|
|
+ bind(function_to_bind);
|
|
|
+ }
|
|
|
+ inline void bind(DesiredRetType(*function_to_bind)(Param1 p1, Param2 p2)) {
|
|
|
+ m_Closure.bindstaticfunc(this, &FastDelegate2::InvokeStaticFunction,
|
|
|
+ function_to_bind);
|
|
|
+ }
|
|
|
+ // Invoke the delegate
|
|
|
+ RetType operator() (Param1 p1, Param2 p2) const {
|
|
|
+ return (m_Closure.GetClosureThis()->*(m_Closure.GetClosureMemPtr()))(p1, p2);
|
|
|
+ }
|
|
|
+ // Implicit conversion to "bool" using the safe_bool idiom
|
|
|
+ private:
|
|
|
+ typedef struct SafeBoolStruct {
|
|
|
+ int a_data_pointer_to_this_is_0_on_buggy_compilers;
|
|
|
+ StaticFunctionPtr m_nonzero;
|
|
|
+ } UselessTypedef;
|
|
|
+ typedef StaticFunctionPtr SafeBoolStruct::* unspecified_bool_type;
|
|
|
+ public:
|
|
|
+ operator unspecified_bool_type() const {
|
|
|
+ return empty() ? 0 : &SafeBoolStruct::m_nonzero;
|
|
|
+ }
|
|
|
+ // necessary to allow ==0 to work despite the safe_bool idiom
|
|
|
+ inline bool operator==(StaticFunctionPtr funcptr) {
|
|
|
+ return m_Closure.IsEqualToStaticFuncPtr(funcptr);
|
|
|
+ }
|
|
|
+ inline bool operator!=(StaticFunctionPtr funcptr) {
|
|
|
+ return !m_Closure.IsEqualToStaticFuncPtr(funcptr);
|
|
|
+ }
|
|
|
+ inline bool operator ! () const { // Is it bound to anything?
|
|
|
+ return !m_Closure;
|
|
|
+ }
|
|
|
+ inline bool empty() const {
|
|
|
+ return !m_Closure;
|
|
|
+ }
|
|
|
+ void clear() { m_Closure.clear(); }
|
|
|
+ // Conversion to and from the DelegateMemento storage class
|
|
|
+ const DelegateMemento& GetMemento() { return m_Closure; }
|
|
|
+ void SetMemento(const DelegateMemento& any) { m_Closure.CopyFrom(this, any); }
|
|
|
+
|
|
|
+ private: // Invoker for static functions
|
|
|
+ RetType InvokeStaticFunction(Param1 p1, Param2 p2) const {
|
|
|
+ return (*(m_Closure.GetStaticFunction()))(p1, p2);
|
|
|
+ }
|
|
|
+ };
|
|
|
+
|
|
|
+ //N=3
|
|
|
+ template<class Param1, class Param2, class Param3, class RetType = detail::DefaultVoid>
|
|
|
+ class FastDelegate3 {
|
|
|
+ private:
|
|
|
+ typedef typename detail::DefaultVoidToVoid<RetType>::type DesiredRetType;
|
|
|
+ typedef DesiredRetType(*StaticFunctionPtr)(Param1 p1, Param2 p2, Param3 p3);
|
|
|
+ typedef RetType(*UnvoidStaticFunctionPtr)(Param1 p1, Param2 p2, Param3 p3);
|
|
|
+ typedef RetType(detail::GenericClass::* GenericMemFn)(Param1 p1, Param2 p2, Param3 p3);
|
|
|
+ typedef detail::ClosurePtr<GenericMemFn, StaticFunctionPtr, UnvoidStaticFunctionPtr> ClosureType;
|
|
|
+ ClosureType m_Closure;
|
|
|
+ public:
|
|
|
+ // Typedefs to aid generic programming
|
|
|
+ typedef FastDelegate3 type;
|
|
|
+
|
|
|
+ // Construction and comparison functions
|
|
|
+ FastDelegate3() { clear(); }
|
|
|
+ FastDelegate3(const FastDelegate3& x) {
|
|
|
+ m_Closure.CopyFrom(this, x.m_Closure);
|
|
|
+ }
|
|
|
+ void operator = (const FastDelegate3& x) {
|
|
|
+ m_Closure.CopyFrom(this, x.m_Closure);
|
|
|
+ }
|
|
|
+ bool operator ==(const FastDelegate3& x) const {
|
|
|
+ return m_Closure.IsEqual(x.m_Closure);
|
|
|
+ }
|
|
|
+ bool operator !=(const FastDelegate3& x) const {
|
|
|
+ return !m_Closure.IsEqual(x.m_Closure);
|
|
|
+ }
|
|
|
+ bool operator <(const FastDelegate3& x) const {
|
|
|
+ return m_Closure.IsLess(x.m_Closure);
|
|
|
+ }
|
|
|
+ bool operator >(const FastDelegate3& x) const {
|
|
|
+ return x.m_Closure.IsLess(m_Closure);
|
|
|
+ }
|
|
|
+ // Binding to non-const member functions
|
|
|
+ template < class X, class Y >
|
|
|
+ FastDelegate3(Y* pthis, DesiredRetType(X::* function_to_bind)(Param1 p1, Param2 p2, Param3 p3)) {
|
|
|
+ m_Closure.bindmemfunc(detail::implicit_cast<X*>(pthis), function_to_bind);
|
|
|
+ }
|
|
|
+ template < class X, class Y >
|
|
|
+ inline void bind(Y* pthis, DesiredRetType(X::* function_to_bind)(Param1 p1, Param2 p2, Param3 p3)) {
|
|
|
+ m_Closure.bindmemfunc(detail::implicit_cast<X*>(pthis), function_to_bind);
|
|
|
+ }
|
|
|
+ // Binding to const member functions.
|
|
|
+ template < class X, class Y >
|
|
|
+ FastDelegate3(const Y* pthis, DesiredRetType(X::* function_to_bind)(Param1 p1, Param2 p2, Param3 p3) const) {
|
|
|
+ m_Closure.bindconstmemfunc(detail::implicit_cast<const X*>(pthis), function_to_bind);
|
|
|
+ }
|
|
|
+ template < class X, class Y >
|
|
|
+ inline void bind(const Y* pthis, DesiredRetType(X::* function_to_bind)(Param1 p1, Param2 p2, Param3 p3) const) {
|
|
|
+ m_Closure.bindconstmemfunc(detail::implicit_cast<const X*>(pthis), function_to_bind);
|
|
|
+ }
|
|
|
+ // Static functions. We convert them into a member function call.
|
|
|
+ // This constructor also provides implicit conversion
|
|
|
+ FastDelegate3(DesiredRetType(*function_to_bind)(Param1 p1, Param2 p2, Param3 p3)) {
|
|
|
+ bind(function_to_bind);
|
|
|
+ }
|
|
|
+ // for efficiency, prevent creation of a temporary
|
|
|
+ void operator = (DesiredRetType(*function_to_bind)(Param1 p1, Param2 p2, Param3 p3)) {
|
|
|
+ bind(function_to_bind);
|
|
|
+ }
|
|
|
+ inline void bind(DesiredRetType(*function_to_bind)(Param1 p1, Param2 p2, Param3 p3)) {
|
|
|
+ m_Closure.bindstaticfunc(this, &FastDelegate3::InvokeStaticFunction,
|
|
|
+ function_to_bind);
|
|
|
+ }
|
|
|
+ // Invoke the delegate
|
|
|
+ RetType operator() (Param1 p1, Param2 p2, Param3 p3) const {
|
|
|
+ return (m_Closure.GetClosureThis()->*(m_Closure.GetClosureMemPtr()))(p1, p2, p3);
|
|
|
+ }
|
|
|
+ // Implicit conversion to "bool" using the safe_bool idiom
|
|
|
+ private:
|
|
|
+ typedef struct SafeBoolStruct {
|
|
|
+ int a_data_pointer_to_this_is_0_on_buggy_compilers;
|
|
|
+ StaticFunctionPtr m_nonzero;
|
|
|
+ } UselessTypedef;
|
|
|
+ typedef StaticFunctionPtr SafeBoolStruct::* unspecified_bool_type;
|
|
|
+ public:
|
|
|
+ operator unspecified_bool_type() const {
|
|
|
+ return empty() ? 0 : &SafeBoolStruct::m_nonzero;
|
|
|
+ }
|
|
|
+ // necessary to allow ==0 to work despite the safe_bool idiom
|
|
|
+ inline bool operator==(StaticFunctionPtr funcptr) {
|
|
|
+ return m_Closure.IsEqualToStaticFuncPtr(funcptr);
|
|
|
+ }
|
|
|
+ inline bool operator!=(StaticFunctionPtr funcptr) {
|
|
|
+ return !m_Closure.IsEqualToStaticFuncPtr(funcptr);
|
|
|
+ }
|
|
|
+ inline bool operator ! () const { // Is it bound to anything?
|
|
|
+ return !m_Closure;
|
|
|
+ }
|
|
|
+ inline bool empty() const {
|
|
|
+ return !m_Closure;
|
|
|
+ }
|
|
|
+ void clear() { m_Closure.clear(); }
|
|
|
+ // Conversion to and from the DelegateMemento storage class
|
|
|
+ const DelegateMemento& GetMemento() { return m_Closure; }
|
|
|
+ void SetMemento(const DelegateMemento& any) { m_Closure.CopyFrom(this, any); }
|
|
|
+
|
|
|
+ private: // Invoker for static functions
|
|
|
+ RetType InvokeStaticFunction(Param1 p1, Param2 p2, Param3 p3) const {
|
|
|
+ return (*(m_Closure.GetStaticFunction()))(p1, p2, p3);
|
|
|
+ }
|
|
|
+ };
|
|
|
+
|
|
|
+ //N=4
|
|
|
+ template<class Param1, class Param2, class Param3, class Param4, class RetType = detail::DefaultVoid>
|
|
|
+ class FastDelegate4 {
|
|
|
+ private:
|
|
|
+ typedef typename detail::DefaultVoidToVoid<RetType>::type DesiredRetType;
|
|
|
+ typedef DesiredRetType(*StaticFunctionPtr)(Param1 p1, Param2 p2, Param3 p3, Param4 p4);
|
|
|
+ typedef RetType(*UnvoidStaticFunctionPtr)(Param1 p1, Param2 p2, Param3 p3, Param4 p4);
|
|
|
+ typedef RetType(detail::GenericClass::* GenericMemFn)(Param1 p1, Param2 p2, Param3 p3, Param4 p4);
|
|
|
+ typedef detail::ClosurePtr<GenericMemFn, StaticFunctionPtr, UnvoidStaticFunctionPtr> ClosureType;
|
|
|
+ ClosureType m_Closure;
|
|
|
+ public:
|
|
|
+ // Typedefs to aid generic programming
|
|
|
+ typedef FastDelegate4 type;
|
|
|
+
|
|
|
+ // Construction and comparison functions
|
|
|
+ FastDelegate4() { clear(); }
|
|
|
+ FastDelegate4(const FastDelegate4& x) {
|
|
|
+ m_Closure.CopyFrom(this, x.m_Closure);
|
|
|
+ }
|
|
|
+ void operator = (const FastDelegate4& x) {
|
|
|
+ m_Closure.CopyFrom(this, x.m_Closure);
|
|
|
+ }
|
|
|
+ bool operator ==(const FastDelegate4& x) const {
|
|
|
+ return m_Closure.IsEqual(x.m_Closure);
|
|
|
+ }
|
|
|
+ bool operator !=(const FastDelegate4& x) const {
|
|
|
+ return !m_Closure.IsEqual(x.m_Closure);
|
|
|
+ }
|
|
|
+ bool operator <(const FastDelegate4& x) const {
|
|
|
+ return m_Closure.IsLess(x.m_Closure);
|
|
|
+ }
|
|
|
+ bool operator >(const FastDelegate4& x) const {
|
|
|
+ return x.m_Closure.IsLess(m_Closure);
|
|
|
+ }
|
|
|
+ // Binding to non-const member functions
|
|
|
+ template < class X, class Y >
|
|
|
+ FastDelegate4(Y* pthis, DesiredRetType(X::* function_to_bind)(Param1 p1, Param2 p2, Param3 p3, Param4 p4)) {
|
|
|
+ m_Closure.bindmemfunc(detail::implicit_cast<X*>(pthis), function_to_bind);
|
|
|
+ }
|
|
|
+ template < class X, class Y >
|
|
|
+ inline void bind(Y* pthis, DesiredRetType(X::* function_to_bind)(Param1 p1, Param2 p2, Param3 p3, Param4 p4)) {
|
|
|
+ m_Closure.bindmemfunc(detail::implicit_cast<X*>(pthis), function_to_bind);
|
|
|
+ }
|
|
|
+ // Binding to const member functions.
|
|
|
+ template < class X, class Y >
|
|
|
+ FastDelegate4(const Y* pthis, DesiredRetType(X::* function_to_bind)(Param1 p1, Param2 p2, Param3 p3, Param4 p4) const) {
|
|
|
+ m_Closure.bindconstmemfunc(detail::implicit_cast<const X*>(pthis), function_to_bind);
|
|
|
+ }
|
|
|
+ template < class X, class Y >
|
|
|
+ inline void bind(const Y* pthis, DesiredRetType(X::* function_to_bind)(Param1 p1, Param2 p2, Param3 p3, Param4 p4) const) {
|
|
|
+ m_Closure.bindconstmemfunc(detail::implicit_cast<const X*>(pthis), function_to_bind);
|
|
|
+ }
|
|
|
+ // Static functions. We convert them into a member function call.
|
|
|
+ // This constructor also provides implicit conversion
|
|
|
+ FastDelegate4(DesiredRetType(*function_to_bind)(Param1 p1, Param2 p2, Param3 p3, Param4 p4)) {
|
|
|
+ bind(function_to_bind);
|
|
|
+ }
|
|
|
+ // for efficiency, prevent creation of a temporary
|
|
|
+ void operator = (DesiredRetType(*function_to_bind)(Param1 p1, Param2 p2, Param3 p3, Param4 p4)) {
|
|
|
+ bind(function_to_bind);
|
|
|
+ }
|
|
|
+ inline void bind(DesiredRetType(*function_to_bind)(Param1 p1, Param2 p2, Param3 p3, Param4 p4)) {
|
|
|
+ m_Closure.bindstaticfunc(this, &FastDelegate4::InvokeStaticFunction,
|
|
|
+ function_to_bind);
|
|
|
+ }
|
|
|
+ // Invoke the delegate
|
|
|
+ RetType operator() (Param1 p1, Param2 p2, Param3 p3, Param4 p4) const {
|
|
|
+ return (m_Closure.GetClosureThis()->*(m_Closure.GetClosureMemPtr()))(p1, p2, p3, p4);
|
|
|
+ }
|
|
|
+ // Implicit conversion to "bool" using the safe_bool idiom
|
|
|
+ private:
|
|
|
+ typedef struct SafeBoolStruct {
|
|
|
+ int a_data_pointer_to_this_is_0_on_buggy_compilers;
|
|
|
+ StaticFunctionPtr m_nonzero;
|
|
|
+ } UselessTypedef;
|
|
|
+ typedef StaticFunctionPtr SafeBoolStruct::* unspecified_bool_type;
|
|
|
+ public:
|
|
|
+ operator unspecified_bool_type() const {
|
|
|
+ return empty() ? 0 : &SafeBoolStruct::m_nonzero;
|
|
|
+ }
|
|
|
+ // necessary to allow ==0 to work despite the safe_bool idiom
|
|
|
+ inline bool operator==(StaticFunctionPtr funcptr) {
|
|
|
+ return m_Closure.IsEqualToStaticFuncPtr(funcptr);
|
|
|
+ }
|
|
|
+ inline bool operator!=(StaticFunctionPtr funcptr) {
|
|
|
+ return !m_Closure.IsEqualToStaticFuncPtr(funcptr);
|
|
|
+ }
|
|
|
+ inline bool operator ! () const { // Is it bound to anything?
|
|
|
+ return !m_Closure;
|
|
|
+ }
|
|
|
+ inline bool empty() const {
|
|
|
+ return !m_Closure;
|
|
|
+ }
|
|
|
+ void clear() { m_Closure.clear(); }
|
|
|
+ // Conversion to and from the DelegateMemento storage class
|
|
|
+ const DelegateMemento& GetMemento() { return m_Closure; }
|
|
|
+ void SetMemento(const DelegateMemento& any) { m_Closure.CopyFrom(this, any); }
|
|
|
+
|
|
|
+ private: // Invoker for static functions
|
|
|
+ RetType InvokeStaticFunction(Param1 p1, Param2 p2, Param3 p3, Param4 p4) const {
|
|
|
+ return (*(m_Closure.GetStaticFunction()))(p1, p2, p3, p4);
|
|
|
+ }
|
|
|
+ };
|
|
|
+
|
|
|
+ //N=5
|
|
|
+ template<class Param1, class Param2, class Param3, class Param4, class Param5, class RetType = detail::DefaultVoid>
|
|
|
+ class FastDelegate5 {
|
|
|
+ private:
|
|
|
+ typedef typename detail::DefaultVoidToVoid<RetType>::type DesiredRetType;
|
|
|
+ typedef DesiredRetType(*StaticFunctionPtr)(Param1 p1, Param2 p2, Param3 p3, Param4 p4, Param5 p5);
|
|
|
+ typedef RetType(*UnvoidStaticFunctionPtr)(Param1 p1, Param2 p2, Param3 p3, Param4 p4, Param5 p5);
|
|
|
+ typedef RetType(detail::GenericClass::* GenericMemFn)(Param1 p1, Param2 p2, Param3 p3, Param4 p4, Param5 p5);
|
|
|
+ typedef detail::ClosurePtr<GenericMemFn, StaticFunctionPtr, UnvoidStaticFunctionPtr> ClosureType;
|
|
|
+ ClosureType m_Closure;
|
|
|
+ public:
|
|
|
+ // Typedefs to aid generic programming
|
|
|
+ typedef FastDelegate5 type;
|
|
|
+
|
|
|
+ // Construction and comparison functions
|
|
|
+ FastDelegate5() { clear(); }
|
|
|
+ FastDelegate5(const FastDelegate5& x) {
|
|
|
+ m_Closure.CopyFrom(this, x.m_Closure);
|
|
|
+ }
|
|
|
+ void operator = (const FastDelegate5& x) {
|
|
|
+ m_Closure.CopyFrom(this, x.m_Closure);
|
|
|
+ }
|
|
|
+ bool operator ==(const FastDelegate5& x) const {
|
|
|
+ return m_Closure.IsEqual(x.m_Closure);
|
|
|
+ }
|
|
|
+ bool operator !=(const FastDelegate5& x) const {
|
|
|
+ return !m_Closure.IsEqual(x.m_Closure);
|
|
|
+ }
|
|
|
+ bool operator <(const FastDelegate5& x) const {
|
|
|
+ return m_Closure.IsLess(x.m_Closure);
|
|
|
+ }
|
|
|
+ bool operator >(const FastDelegate5& x) const {
|
|
|
+ return x.m_Closure.IsLess(m_Closure);
|
|
|
+ }
|
|
|
+ // Binding to non-const member functions
|
|
|
+ template < class X, class Y >
|
|
|
+ FastDelegate5(Y* pthis, DesiredRetType(X::* function_to_bind)(Param1 p1, Param2 p2, Param3 p3, Param4 p4, Param5 p5)) {
|
|
|
+ m_Closure.bindmemfunc(detail::implicit_cast<X*>(pthis), function_to_bind);
|
|
|
+ }
|
|
|
+ template < class X, class Y >
|
|
|
+ inline void bind(Y* pthis, DesiredRetType(X::* function_to_bind)(Param1 p1, Param2 p2, Param3 p3, Param4 p4, Param5 p5)) {
|
|
|
+ m_Closure.bindmemfunc(detail::implicit_cast<X*>(pthis), function_to_bind);
|
|
|
+ }
|
|
|
+ // Binding to const member functions.
|
|
|
+ template < class X, class Y >
|
|
|
+ FastDelegate5(const Y* pthis, DesiredRetType(X::* function_to_bind)(Param1 p1, Param2 p2, Param3 p3, Param4 p4, Param5 p5) const) {
|
|
|
+ m_Closure.bindconstmemfunc(detail::implicit_cast<const X*>(pthis), function_to_bind);
|
|
|
+ }
|
|
|
+ template < class X, class Y >
|
|
|
+ inline void bind(const Y* pthis, DesiredRetType(X::* function_to_bind)(Param1 p1, Param2 p2, Param3 p3, Param4 p4, Param5 p5) const) {
|
|
|
+ m_Closure.bindconstmemfunc(detail::implicit_cast<const X*>(pthis), function_to_bind);
|
|
|
+ }
|
|
|
+ // Static functions. We convert them into a member function call.
|
|
|
+ // This constructor also provides implicit conversion
|
|
|
+ FastDelegate5(DesiredRetType(*function_to_bind)(Param1 p1, Param2 p2, Param3 p3, Param4 p4, Param5 p5)) {
|
|
|
+ bind(function_to_bind);
|
|
|
+ }
|
|
|
+ // for efficiency, prevent creation of a temporary
|
|
|
+ void operator = (DesiredRetType(*function_to_bind)(Param1 p1, Param2 p2, Param3 p3, Param4 p4, Param5 p5)) {
|
|
|
+ bind(function_to_bind);
|
|
|
+ }
|
|
|
+ inline void bind(DesiredRetType(*function_to_bind)(Param1 p1, Param2 p2, Param3 p3, Param4 p4, Param5 p5)) {
|
|
|
+ m_Closure.bindstaticfunc(this, &FastDelegate5::InvokeStaticFunction,
|
|
|
+ function_to_bind);
|
|
|
+ }
|
|
|
+ // Invoke the delegate
|
|
|
+ RetType operator() (Param1 p1, Param2 p2, Param3 p3, Param4 p4, Param5 p5) const {
|
|
|
+ return (m_Closure.GetClosureThis()->*(m_Closure.GetClosureMemPtr()))(p1, p2, p3, p4, p5);
|
|
|
+ }
|
|
|
+ // Implicit conversion to "bool" using the safe_bool idiom
|
|
|
+ private:
|
|
|
+ typedef struct SafeBoolStruct {
|
|
|
+ int a_data_pointer_to_this_is_0_on_buggy_compilers;
|
|
|
+ StaticFunctionPtr m_nonzero;
|
|
|
+ } UselessTypedef;
|
|
|
+ typedef StaticFunctionPtr SafeBoolStruct::* unspecified_bool_type;
|
|
|
+ public:
|
|
|
+ operator unspecified_bool_type() const {
|
|
|
+ return empty() ? 0 : &SafeBoolStruct::m_nonzero;
|
|
|
+ }
|
|
|
+ // necessary to allow ==0 to work despite the safe_bool idiom
|
|
|
+ inline bool operator==(StaticFunctionPtr funcptr) {
|
|
|
+ return m_Closure.IsEqualToStaticFuncPtr(funcptr);
|
|
|
+ }
|
|
|
+ inline bool operator!=(StaticFunctionPtr funcptr) {
|
|
|
+ return !m_Closure.IsEqualToStaticFuncPtr(funcptr);
|
|
|
+ }
|
|
|
+ inline bool operator ! () const { // Is it bound to anything?
|
|
|
+ return !m_Closure;
|
|
|
+ }
|
|
|
+ inline bool empty() const {
|
|
|
+ return !m_Closure;
|
|
|
+ }
|
|
|
+ void clear() { m_Closure.clear(); }
|
|
|
+ // Conversion to and from the DelegateMemento storage class
|
|
|
+ const DelegateMemento& GetMemento() { return m_Closure; }
|
|
|
+ void SetMemento(const DelegateMemento& any) { m_Closure.CopyFrom(this, any); }
|
|
|
+
|
|
|
+ private: // Invoker for static functions
|
|
|
+ RetType InvokeStaticFunction(Param1 p1, Param2 p2, Param3 p3, Param4 p4, Param5 p5) const {
|
|
|
+ return (*(m_Closure.GetStaticFunction()))(p1, p2, p3, p4, p5);
|
|
|
+ }
|
|
|
+ };
|
|
|
+
|
|
|
+ //N=6
|
|
|
+ template<class Param1, class Param2, class Param3, class Param4, class Param5, class Param6, class RetType = detail::DefaultVoid>
|
|
|
+ class FastDelegate6 {
|
|
|
+ private:
|
|
|
+ typedef typename detail::DefaultVoidToVoid<RetType>::type DesiredRetType;
|
|
|
+ typedef DesiredRetType(*StaticFunctionPtr)(Param1 p1, Param2 p2, Param3 p3, Param4 p4, Param5 p5, Param6 p6);
|
|
|
+ typedef RetType(*UnvoidStaticFunctionPtr)(Param1 p1, Param2 p2, Param3 p3, Param4 p4, Param5 p5, Param6 p6);
|
|
|
+ typedef RetType(detail::GenericClass::* GenericMemFn)(Param1 p1, Param2 p2, Param3 p3, Param4 p4, Param5 p5, Param6 p6);
|
|
|
+ typedef detail::ClosurePtr<GenericMemFn, StaticFunctionPtr, UnvoidStaticFunctionPtr> ClosureType;
|
|
|
+ ClosureType m_Closure;
|
|
|
+ public:
|
|
|
+ // Typedefs to aid generic programming
|
|
|
+ typedef FastDelegate6 type;
|
|
|
+
|
|
|
+ // Construction and comparison functions
|
|
|
+ FastDelegate6() { clear(); }
|
|
|
+ FastDelegate6(const FastDelegate6& x) {
|
|
|
+ m_Closure.CopyFrom(this, x.m_Closure);
|
|
|
+ }
|
|
|
+ void operator = (const FastDelegate6& x) {
|
|
|
+ m_Closure.CopyFrom(this, x.m_Closure);
|
|
|
+ }
|
|
|
+ bool operator ==(const FastDelegate6& x) const {
|
|
|
+ return m_Closure.IsEqual(x.m_Closure);
|
|
|
+ }
|
|
|
+ bool operator !=(const FastDelegate6& x) const {
|
|
|
+ return !m_Closure.IsEqual(x.m_Closure);
|
|
|
+ }
|
|
|
+ bool operator <(const FastDelegate6& x) const {
|
|
|
+ return m_Closure.IsLess(x.m_Closure);
|
|
|
+ }
|
|
|
+ bool operator >(const FastDelegate6& x) const {
|
|
|
+ return x.m_Closure.IsLess(m_Closure);
|
|
|
+ }
|
|
|
+ // Binding to non-const member functions
|
|
|
+ template < class X, class Y >
|
|
|
+ FastDelegate6(Y* pthis, DesiredRetType(X::* function_to_bind)(Param1 p1, Param2 p2, Param3 p3, Param4 p4, Param5 p5, Param6 p6)) {
|
|
|
+ m_Closure.bindmemfunc(detail::implicit_cast<X*>(pthis), function_to_bind);
|
|
|
+ }
|
|
|
+ template < class X, class Y >
|
|
|
+ inline void bind(Y* pthis, DesiredRetType(X::* function_to_bind)(Param1 p1, Param2 p2, Param3 p3, Param4 p4, Param5 p5, Param6 p6)) {
|
|
|
+ m_Closure.bindmemfunc(detail::implicit_cast<X*>(pthis), function_to_bind);
|
|
|
+ }
|
|
|
+ // Binding to const member functions.
|
|
|
+ template < class X, class Y >
|
|
|
+ FastDelegate6(const Y* pthis, DesiredRetType(X::* function_to_bind)(Param1 p1, Param2 p2, Param3 p3, Param4 p4, Param5 p5, Param6 p6) const) {
|
|
|
+ m_Closure.bindconstmemfunc(detail::implicit_cast<const X*>(pthis), function_to_bind);
|
|
|
+ }
|
|
|
+ template < class X, class Y >
|
|
|
+ inline void bind(const Y* pthis, DesiredRetType(X::* function_to_bind)(Param1 p1, Param2 p2, Param3 p3, Param4 p4, Param5 p5, Param6 p6) const) {
|
|
|
+ m_Closure.bindconstmemfunc(detail::implicit_cast<const X*>(pthis), function_to_bind);
|
|
|
+ }
|
|
|
+ // Static functions. We convert them into a member function call.
|
|
|
+ // This constructor also provides implicit conversion
|
|
|
+ FastDelegate6(DesiredRetType(*function_to_bind)(Param1 p1, Param2 p2, Param3 p3, Param4 p4, Param5 p5, Param6 p6)) {
|
|
|
+ bind(function_to_bind);
|
|
|
+ }
|
|
|
+ // for efficiency, prevent creation of a temporary
|
|
|
+ void operator = (DesiredRetType(*function_to_bind)(Param1 p1, Param2 p2, Param3 p3, Param4 p4, Param5 p5, Param6 p6)) {
|
|
|
+ bind(function_to_bind);
|
|
|
+ }
|
|
|
+ inline void bind(DesiredRetType(*function_to_bind)(Param1 p1, Param2 p2, Param3 p3, Param4 p4, Param5 p5, Param6 p6)) {
|
|
|
+ m_Closure.bindstaticfunc(this, &FastDelegate6::InvokeStaticFunction,
|
|
|
+ function_to_bind);
|
|
|
+ }
|
|
|
+ // Invoke the delegate
|
|
|
+ RetType operator() (Param1 p1, Param2 p2, Param3 p3, Param4 p4, Param5 p5, Param6 p6) const {
|
|
|
+ return (m_Closure.GetClosureThis()->*(m_Closure.GetClosureMemPtr()))(p1, p2, p3, p4, p5, p6);
|
|
|
+ }
|
|
|
+ // Implicit conversion to "bool" using the safe_bool idiom
|
|
|
+ private:
|
|
|
+ typedef struct SafeBoolStruct {
|
|
|
+ int a_data_pointer_to_this_is_0_on_buggy_compilers;
|
|
|
+ StaticFunctionPtr m_nonzero;
|
|
|
+ } UselessTypedef;
|
|
|
+ typedef StaticFunctionPtr SafeBoolStruct::* unspecified_bool_type;
|
|
|
+ public:
|
|
|
+ operator unspecified_bool_type() const {
|
|
|
+ return empty() ? 0 : &SafeBoolStruct::m_nonzero;
|
|
|
+ }
|
|
|
+ // necessary to allow ==0 to work despite the safe_bool idiom
|
|
|
+ inline bool operator==(StaticFunctionPtr funcptr) {
|
|
|
+ return m_Closure.IsEqualToStaticFuncPtr(funcptr);
|
|
|
+ }
|
|
|
+ inline bool operator!=(StaticFunctionPtr funcptr) {
|
|
|
+ return !m_Closure.IsEqualToStaticFuncPtr(funcptr);
|
|
|
+ }
|
|
|
+ inline bool operator ! () const { // Is it bound to anything?
|
|
|
+ return !m_Closure;
|
|
|
+ }
|
|
|
+ inline bool empty() const {
|
|
|
+ return !m_Closure;
|
|
|
+ }
|
|
|
+ void clear() { m_Closure.clear(); }
|
|
|
+ // Conversion to and from the DelegateMemento storage class
|
|
|
+ const DelegateMemento& GetMemento() { return m_Closure; }
|
|
|
+ void SetMemento(const DelegateMemento& any) { m_Closure.CopyFrom(this, any); }
|
|
|
+
|
|
|
+ private: // Invoker for static functions
|
|
|
+ RetType InvokeStaticFunction(Param1 p1, Param2 p2, Param3 p3, Param4 p4, Param5 p5, Param6 p6) const {
|
|
|
+ return (*(m_Closure.GetStaticFunction()))(p1, p2, p3, p4, p5, p6);
|
|
|
+ }
|
|
|
+ };
|
|
|
+
|
|
|
+ //N=7
|
|
|
+ template<class Param1, class Param2, class Param3, class Param4, class Param5, class Param6, class Param7, class RetType = detail::DefaultVoid>
|
|
|
+ class FastDelegate7 {
|
|
|
+ private:
|
|
|
+ typedef typename detail::DefaultVoidToVoid<RetType>::type DesiredRetType;
|
|
|
+ typedef DesiredRetType(*StaticFunctionPtr)(Param1 p1, Param2 p2, Param3 p3, Param4 p4, Param5 p5, Param6 p6, Param7 p7);
|
|
|
+ typedef RetType(*UnvoidStaticFunctionPtr)(Param1 p1, Param2 p2, Param3 p3, Param4 p4, Param5 p5, Param6 p6, Param7 p7);
|
|
|
+ typedef RetType(detail::GenericClass::* GenericMemFn)(Param1 p1, Param2 p2, Param3 p3, Param4 p4, Param5 p5, Param6 p6, Param7 p7);
|
|
|
+ typedef detail::ClosurePtr<GenericMemFn, StaticFunctionPtr, UnvoidStaticFunctionPtr> ClosureType;
|
|
|
+ ClosureType m_Closure;
|
|
|
+ public:
|
|
|
+ // Typedefs to aid generic programming
|
|
|
+ typedef FastDelegate7 type;
|
|
|
+
|
|
|
+ // Construction and comparison functions
|
|
|
+ FastDelegate7() { clear(); }
|
|
|
+ FastDelegate7(const FastDelegate7& x) {
|
|
|
+ m_Closure.CopyFrom(this, x.m_Closure);
|
|
|
+ }
|
|
|
+ void operator = (const FastDelegate7& x) {
|
|
|
+ m_Closure.CopyFrom(this, x.m_Closure);
|
|
|
+ }
|
|
|
+ bool operator ==(const FastDelegate7& x) const {
|
|
|
+ return m_Closure.IsEqual(x.m_Closure);
|
|
|
+ }
|
|
|
+ bool operator !=(const FastDelegate7& x) const {
|
|
|
+ return !m_Closure.IsEqual(x.m_Closure);
|
|
|
+ }
|
|
|
+ bool operator <(const FastDelegate7& x) const {
|
|
|
+ return m_Closure.IsLess(x.m_Closure);
|
|
|
+ }
|
|
|
+ bool operator >(const FastDelegate7& x) const {
|
|
|
+ return x.m_Closure.IsLess(m_Closure);
|
|
|
+ }
|
|
|
+ // Binding to non-const member functions
|
|
|
+ template < class X, class Y >
|
|
|
+ FastDelegate7(Y* pthis, DesiredRetType(X::* function_to_bind)(Param1 p1, Param2 p2, Param3 p3, Param4 p4, Param5 p5, Param6 p6, Param7 p7)) {
|
|
|
+ m_Closure.bindmemfunc(detail::implicit_cast<X*>(pthis), function_to_bind);
|
|
|
+ }
|
|
|
+ template < class X, class Y >
|
|
|
+ inline void bind(Y* pthis, DesiredRetType(X::* function_to_bind)(Param1 p1, Param2 p2, Param3 p3, Param4 p4, Param5 p5, Param6 p6, Param7 p7)) {
|
|
|
+ m_Closure.bindmemfunc(detail::implicit_cast<X*>(pthis), function_to_bind);
|
|
|
+ }
|
|
|
+ // Binding to const member functions.
|
|
|
+ template < class X, class Y >
|
|
|
+ FastDelegate7(const Y* pthis, DesiredRetType(X::* function_to_bind)(Param1 p1, Param2 p2, Param3 p3, Param4 p4, Param5 p5, Param6 p6, Param7 p7) const) {
|
|
|
+ m_Closure.bindconstmemfunc(detail::implicit_cast<const X*>(pthis), function_to_bind);
|
|
|
+ }
|
|
|
+ template < class X, class Y >
|
|
|
+ inline void bind(const Y* pthis, DesiredRetType(X::* function_to_bind)(Param1 p1, Param2 p2, Param3 p3, Param4 p4, Param5 p5, Param6 p6, Param7 p7) const) {
|
|
|
+ m_Closure.bindconstmemfunc(detail::implicit_cast<const X*>(pthis), function_to_bind);
|
|
|
+ }
|
|
|
+ // Static functions. We convert them into a member function call.
|
|
|
+ // This constructor also provides implicit conversion
|
|
|
+ FastDelegate7(DesiredRetType(*function_to_bind)(Param1 p1, Param2 p2, Param3 p3, Param4 p4, Param5 p5, Param6 p6, Param7 p7)) {
|
|
|
+ bind(function_to_bind);
|
|
|
+ }
|
|
|
+ // for efficiency, prevent creation of a temporary
|
|
|
+ void operator = (DesiredRetType(*function_to_bind)(Param1 p1, Param2 p2, Param3 p3, Param4 p4, Param5 p5, Param6 p6, Param7 p7)) {
|
|
|
+ bind(function_to_bind);
|
|
|
+ }
|
|
|
+ inline void bind(DesiredRetType(*function_to_bind)(Param1 p1, Param2 p2, Param3 p3, Param4 p4, Param5 p5, Param6 p6, Param7 p7)) {
|
|
|
+ m_Closure.bindstaticfunc(this, &FastDelegate7::InvokeStaticFunction,
|
|
|
+ function_to_bind);
|
|
|
+ }
|
|
|
+ // Invoke the delegate
|
|
|
+ RetType operator() (Param1 p1, Param2 p2, Param3 p3, Param4 p4, Param5 p5, Param6 p6, Param7 p7) const {
|
|
|
+ return (m_Closure.GetClosureThis()->*(m_Closure.GetClosureMemPtr()))(p1, p2, p3, p4, p5, p6, p7);
|
|
|
+ }
|
|
|
+ // Implicit conversion to "bool" using the safe_bool idiom
|
|
|
+ private:
|
|
|
+ typedef struct SafeBoolStruct {
|
|
|
+ int a_data_pointer_to_this_is_0_on_buggy_compilers;
|
|
|
+ StaticFunctionPtr m_nonzero;
|
|
|
+ } UselessTypedef;
|
|
|
+ typedef StaticFunctionPtr SafeBoolStruct::* unspecified_bool_type;
|
|
|
+ public:
|
|
|
+ operator unspecified_bool_type() const {
|
|
|
+ return empty() ? 0 : &SafeBoolStruct::m_nonzero;
|
|
|
+ }
|
|
|
+ // necessary to allow ==0 to work despite the safe_bool idiom
|
|
|
+ inline bool operator==(StaticFunctionPtr funcptr) {
|
|
|
+ return m_Closure.IsEqualToStaticFuncPtr(funcptr);
|
|
|
+ }
|
|
|
+ inline bool operator!=(StaticFunctionPtr funcptr) {
|
|
|
+ return !m_Closure.IsEqualToStaticFuncPtr(funcptr);
|
|
|
+ }
|
|
|
+ inline bool operator ! () const { // Is it bound to anything?
|
|
|
+ return !m_Closure;
|
|
|
+ }
|
|
|
+ inline bool empty() const {
|
|
|
+ return !m_Closure;
|
|
|
+ }
|
|
|
+ void clear() { m_Closure.clear(); }
|
|
|
+ // Conversion to and from the DelegateMemento storage class
|
|
|
+ const DelegateMemento& GetMemento() { return m_Closure; }
|
|
|
+ void SetMemento(const DelegateMemento& any) { m_Closure.CopyFrom(this, any); }
|
|
|
+
|
|
|
+ private: // Invoker for static functions
|
|
|
+ RetType InvokeStaticFunction(Param1 p1, Param2 p2, Param3 p3, Param4 p4, Param5 p5, Param6 p6, Param7 p7) const {
|
|
|
+ return (*(m_Closure.GetStaticFunction()))(p1, p2, p3, p4, p5, p6, p7);
|
|
|
+ }
|
|
|
+ };
|
|
|
+
|
|
|
+ //N=8
|
|
|
+ template<class Param1, class Param2, class Param3, class Param4, class Param5, class Param6, class Param7, class Param8, class RetType = detail::DefaultVoid>
|
|
|
+ class FastDelegate8 {
|
|
|
+ private:
|
|
|
+ typedef typename detail::DefaultVoidToVoid<RetType>::type DesiredRetType;
|
|
|
+ typedef DesiredRetType(*StaticFunctionPtr)(Param1 p1, Param2 p2, Param3 p3, Param4 p4, Param5 p5, Param6 p6, Param7 p7, Param8 p8);
|
|
|
+ typedef RetType(*UnvoidStaticFunctionPtr)(Param1 p1, Param2 p2, Param3 p3, Param4 p4, Param5 p5, Param6 p6, Param7 p7, Param8 p8);
|
|
|
+ typedef RetType(detail::GenericClass::* GenericMemFn)(Param1 p1, Param2 p2, Param3 p3, Param4 p4, Param5 p5, Param6 p6, Param7 p7, Param8 p8);
|
|
|
+ typedef detail::ClosurePtr<GenericMemFn, StaticFunctionPtr, UnvoidStaticFunctionPtr> ClosureType;
|
|
|
+ ClosureType m_Closure;
|
|
|
+ public:
|
|
|
+ // Typedefs to aid generic programming
|
|
|
+ typedef FastDelegate8 type;
|
|
|
+
|
|
|
+ // Construction and comparison functions
|
|
|
+ FastDelegate8() { clear(); }
|
|
|
+ FastDelegate8(const FastDelegate8& x) {
|
|
|
+ m_Closure.CopyFrom(this, x.m_Closure);
|
|
|
+ }
|
|
|
+ void operator = (const FastDelegate8& x) {
|
|
|
+ m_Closure.CopyFrom(this, x.m_Closure);
|
|
|
+ }
|
|
|
+ bool operator ==(const FastDelegate8& x) const {
|
|
|
+ return m_Closure.IsEqual(x.m_Closure);
|
|
|
+ }
|
|
|
+ bool operator !=(const FastDelegate8& x) const {
|
|
|
+ return !m_Closure.IsEqual(x.m_Closure);
|
|
|
+ }
|
|
|
+ bool operator <(const FastDelegate8& x) const {
|
|
|
+ return m_Closure.IsLess(x.m_Closure);
|
|
|
+ }
|
|
|
+ bool operator >(const FastDelegate8& x) const {
|
|
|
+ return x.m_Closure.IsLess(m_Closure);
|
|
|
+ }
|
|
|
+ // Binding to non-const member functions
|
|
|
+ template < class X, class Y >
|
|
|
+ FastDelegate8(Y* pthis, DesiredRetType(X::* function_to_bind)(Param1 p1, Param2 p2, Param3 p3, Param4 p4, Param5 p5, Param6 p6, Param7 p7, Param8 p8)) {
|
|
|
+ m_Closure.bindmemfunc(detail::implicit_cast<X*>(pthis), function_to_bind);
|
|
|
+ }
|
|
|
+ template < class X, class Y >
|
|
|
+ inline void bind(Y* pthis, DesiredRetType(X::* function_to_bind)(Param1 p1, Param2 p2, Param3 p3, Param4 p4, Param5 p5, Param6 p6, Param7 p7, Param8 p8)) {
|
|
|
+ m_Closure.bindmemfunc(detail::implicit_cast<X*>(pthis), function_to_bind);
|
|
|
+ }
|
|
|
+ // Binding to const member functions.
|
|
|
+ template < class X, class Y >
|
|
|
+ FastDelegate8(const Y* pthis, DesiredRetType(X::* function_to_bind)(Param1 p1, Param2 p2, Param3 p3, Param4 p4, Param5 p5, Param6 p6, Param7 p7, Param8 p8) const) {
|
|
|
+ m_Closure.bindconstmemfunc(detail::implicit_cast<const X*>(pthis), function_to_bind);
|
|
|
+ }
|
|
|
+ template < class X, class Y >
|
|
|
+ inline void bind(const Y* pthis, DesiredRetType(X::* function_to_bind)(Param1 p1, Param2 p2, Param3 p3, Param4 p4, Param5 p5, Param6 p6, Param7 p7, Param8 p8) const) {
|
|
|
+ m_Closure.bindconstmemfunc(detail::implicit_cast<const X*>(pthis), function_to_bind);
|
|
|
+ }
|
|
|
+ // Static functions. We convert them into a member function call.
|
|
|
+ // This constructor also provides implicit conversion
|
|
|
+ FastDelegate8(DesiredRetType(*function_to_bind)(Param1 p1, Param2 p2, Param3 p3, Param4 p4, Param5 p5, Param6 p6, Param7 p7, Param8 p8)) {
|
|
|
+ bind(function_to_bind);
|
|
|
+ }
|
|
|
+ // for efficiency, prevent creation of a temporary
|
|
|
+ void operator = (DesiredRetType(*function_to_bind)(Param1 p1, Param2 p2, Param3 p3, Param4 p4, Param5 p5, Param6 p6, Param7 p7, Param8 p8)) {
|
|
|
+ bind(function_to_bind);
|
|
|
+ }
|
|
|
+ inline void bind(DesiredRetType(*function_to_bind)(Param1 p1, Param2 p2, Param3 p3, Param4 p4, Param5 p5, Param6 p6, Param7 p7, Param8 p8)) {
|
|
|
+ m_Closure.bindstaticfunc(this, &FastDelegate8::InvokeStaticFunction,
|
|
|
+ function_to_bind);
|
|
|
+ }
|
|
|
+ // Invoke the delegate
|
|
|
+ RetType operator() (Param1 p1, Param2 p2, Param3 p3, Param4 p4, Param5 p5, Param6 p6, Param7 p7, Param8 p8) const {
|
|
|
+ return (m_Closure.GetClosureThis()->*(m_Closure.GetClosureMemPtr()))(p1, p2, p3, p4, p5, p6, p7, p8);
|
|
|
+ }
|
|
|
+ // Implicit conversion to "bool" using the safe_bool idiom
|
|
|
+ private:
|
|
|
+ typedef struct SafeBoolStruct {
|
|
|
+ int a_data_pointer_to_this_is_0_on_buggy_compilers;
|
|
|
+ StaticFunctionPtr m_nonzero;
|
|
|
+ } UselessTypedef;
|
|
|
+ typedef StaticFunctionPtr SafeBoolStruct::* unspecified_bool_type;
|
|
|
+ public:
|
|
|
+ operator unspecified_bool_type() const {
|
|
|
+ return empty() ? 0 : &SafeBoolStruct::m_nonzero;
|
|
|
+ }
|
|
|
+ // necessary to allow ==0 to work despite the safe_bool idiom
|
|
|
+ inline bool operator==(StaticFunctionPtr funcptr) {
|
|
|
+ return m_Closure.IsEqualToStaticFuncPtr(funcptr);
|
|
|
+ }
|
|
|
+ inline bool operator!=(StaticFunctionPtr funcptr) {
|
|
|
+ return !m_Closure.IsEqualToStaticFuncPtr(funcptr);
|
|
|
+ }
|
|
|
+ inline bool operator ! () const { // Is it bound to anything?
|
|
|
+ return !m_Closure;
|
|
|
+ }
|
|
|
+ inline bool empty() const {
|
|
|
+ return !m_Closure;
|
|
|
+ }
|
|
|
+ void clear() { m_Closure.clear(); }
|
|
|
+ // Conversion to and from the DelegateMemento storage class
|
|
|
+ const DelegateMemento& GetMemento() { return m_Closure; }
|
|
|
+ void SetMemento(const DelegateMemento& any) { m_Closure.CopyFrom(this, any); }
|
|
|
+
|
|
|
+ private: // Invoker for static functions
|
|
|
+ RetType InvokeStaticFunction(Param1 p1, Param2 p2, Param3 p3, Param4 p4, Param5 p5, Param6 p6, Param7 p7, Param8 p8) const {
|
|
|
+ return (*(m_Closure.GetStaticFunction()))(p1, p2, p3, p4, p5, p6, p7, p8);
|
|
|
+ }
|
|
|
+ };
|
|
|
+
|
|
|
+
|
|
|
+ ////////////////////////////////////////////////////////////////////////////////
|
|
|
+ // Fast Delegates, part 4:
|
|
|
+ //
|
|
|
+ // FastDelegate<> class (Original author: Jody Hagins)
|
|
|
+ // Allows boost::function style syntax like:
|
|
|
+ // FastDelegate< double (int, long) >
|
|
|
+ // instead of:
|
|
|
+ // FastDelegate2< int, long, double >
|
|
|
+ //
|
|
|
+ ////////////////////////////////////////////////////////////////////////////////
|
|
|
+
|
|
|
+#ifdef FASTDELEGATE_ALLOW_FUNCTION_TYPE_SYNTAX
|
|
|
+
|
|
|
+// Declare FastDelegate as a class template. It will be specialized
|
|
|
+// later for all number of arguments.
|
|
|
+ template <typename Signature>
|
|
|
+ class FastDelegate;
|
|
|
+
|
|
|
+ //N=0
|
|
|
+ // Specialization to allow use of
|
|
|
+ // FastDelegate< R ( ) >
|
|
|
+ // instead of
|
|
|
+ // FastDelegate0 < R >
|
|
|
+ template<typename R>
|
|
|
+ class FastDelegate< R() >
|
|
|
+ // Inherit from FastDelegate0 so that it can be treated just like a FastDelegate0
|
|
|
+ : public FastDelegate0 < R >
|
|
|
+ {
|
|
|
+ public:
|
|
|
+ // Make using the base type a bit easier via typedef.
|
|
|
+ typedef FastDelegate0 < R > BaseType;
|
|
|
+
|
|
|
+ // Allow users access to the specific type of this delegate.
|
|
|
+ typedef FastDelegate SelfType;
|
|
|
+
|
|
|
+ // Mimic the base class constructors.
|
|
|
+ FastDelegate() : BaseType() {}
|
|
|
+
|
|
|
+ template < class X, class Y >
|
|
|
+ FastDelegate(Y* pthis,
|
|
|
+ R(X::* function_to_bind)())
|
|
|
+ : BaseType(pthis, function_to_bind) {
|
|
|
+ }
|
|
|
+
|
|
|
+ template < class X, class Y >
|
|
|
+ FastDelegate(const Y* pthis,
|
|
|
+ R(X::* function_to_bind)() const)
|
|
|
+ : BaseType(pthis, function_to_bind)
|
|
|
+ {
|
|
|
+ }
|
|
|
+
|
|
|
+ FastDelegate(R(*function_to_bind)())
|
|
|
+ : BaseType(function_to_bind) {
|
|
|
+ }
|
|
|
+ void operator = (const BaseType& x) {
|
|
|
+ *static_cast<BaseType*>(this) = x;
|
|
|
+ }
|
|
|
+ };
|
|
|
+
|
|
|
+ //N=1
|
|
|
+ // Specialization to allow use of
|
|
|
+ // FastDelegate< R ( Param1 ) >
|
|
|
+ // instead of
|
|
|
+ // FastDelegate1 < Param1, R >
|
|
|
+ template<typename R, class Param1>
|
|
|
+ class FastDelegate< R(Param1) >
|
|
|
+ // Inherit from FastDelegate1 so that it can be treated just like a FastDelegate1
|
|
|
+ : public FastDelegate1 < Param1, R >
|
|
|
+ {
|
|
|
+ public:
|
|
|
+ // Make using the base type a bit easier via typedef.
|
|
|
+ typedef FastDelegate1 < Param1, R > BaseType;
|
|
|
+
|
|
|
+ // Allow users access to the specific type of this delegate.
|
|
|
+ typedef FastDelegate SelfType;
|
|
|
+
|
|
|
+ // Mimic the base class constructors.
|
|
|
+ FastDelegate() : BaseType() {}
|
|
|
+
|
|
|
+ template < class X, class Y >
|
|
|
+ FastDelegate(Y* pthis,
|
|
|
+ R(X::* function_to_bind)(Param1 p1))
|
|
|
+ : BaseType(pthis, function_to_bind) {
|
|
|
+ }
|
|
|
+
|
|
|
+ template < class X, class Y >
|
|
|
+ FastDelegate(const Y* pthis,
|
|
|
+ R(X::* function_to_bind)(Param1 p1) const)
|
|
|
+ : BaseType(pthis, function_to_bind)
|
|
|
+ {
|
|
|
+ }
|
|
|
+
|
|
|
+ FastDelegate(R(*function_to_bind)(Param1 p1))
|
|
|
+ : BaseType(function_to_bind) {
|
|
|
+ }
|
|
|
+ void operator = (const BaseType& x) {
|
|
|
+ *static_cast<BaseType*>(this) = x;
|
|
|
+ }
|
|
|
+ };
|
|
|
+
|
|
|
+ //N=2
|
|
|
+ // Specialization to allow use of
|
|
|
+ // FastDelegate< R ( Param1, Param2 ) >
|
|
|
+ // instead of
|
|
|
+ // FastDelegate2 < Param1, Param2, R >
|
|
|
+ template<typename R, class Param1, class Param2>
|
|
|
+ class FastDelegate< R(Param1, Param2) >
|
|
|
+ // Inherit from FastDelegate2 so that it can be treated just like a FastDelegate2
|
|
|
+ : public FastDelegate2 < Param1, Param2, R >
|
|
|
+ {
|
|
|
+ public:
|
|
|
+ // Make using the base type a bit easier via typedef.
|
|
|
+ typedef FastDelegate2 < Param1, Param2, R > BaseType;
|
|
|
+
|
|
|
+ // Allow users access to the specific type of this delegate.
|
|
|
+ typedef FastDelegate SelfType;
|
|
|
+
|
|
|
+ // Mimic the base class constructors.
|
|
|
+ FastDelegate() : BaseType() {}
|
|
|
+
|
|
|
+ template < class X, class Y >
|
|
|
+ FastDelegate(Y* pthis,
|
|
|
+ R(X::* function_to_bind)(Param1 p1, Param2 p2))
|
|
|
+ : BaseType(pthis, function_to_bind) {
|
|
|
+ }
|
|
|
+
|
|
|
+ template < class X, class Y >
|
|
|
+ FastDelegate(const Y* pthis,
|
|
|
+ R(X::* function_to_bind)(Param1 p1, Param2 p2) const)
|
|
|
+ : BaseType(pthis, function_to_bind)
|
|
|
+ {
|
|
|
+ }
|
|
|
+
|
|
|
+ FastDelegate(R(*function_to_bind)(Param1 p1, Param2 p2))
|
|
|
+ : BaseType(function_to_bind) {
|
|
|
+ }
|
|
|
+ void operator = (const BaseType& x) {
|
|
|
+ *static_cast<BaseType*>(this) = x;
|
|
|
+ }
|
|
|
+ };
|
|
|
+
|
|
|
+ //N=3
|
|
|
+ // Specialization to allow use of
|
|
|
+ // FastDelegate< R ( Param1, Param2, Param3 ) >
|
|
|
+ // instead of
|
|
|
+ // FastDelegate3 < Param1, Param2, Param3, R >
|
|
|
+ template<typename R, class Param1, class Param2, class Param3>
|
|
|
+ class FastDelegate< R(Param1, Param2, Param3) >
|
|
|
+ // Inherit from FastDelegate3 so that it can be treated just like a FastDelegate3
|
|
|
+ : public FastDelegate3 < Param1, Param2, Param3, R >
|
|
|
+ {
|
|
|
+ public:
|
|
|
+ // Make using the base type a bit easier via typedef.
|
|
|
+ typedef FastDelegate3 < Param1, Param2, Param3, R > BaseType;
|
|
|
+
|
|
|
+ // Allow users access to the specific type of this delegate.
|
|
|
+ typedef FastDelegate SelfType;
|
|
|
+
|
|
|
+ // Mimic the base class constructors.
|
|
|
+ FastDelegate() : BaseType() {}
|
|
|
+
|
|
|
+ template < class X, class Y >
|
|
|
+ FastDelegate(Y* pthis,
|
|
|
+ R(X::* function_to_bind)(Param1 p1, Param2 p2, Param3 p3))
|
|
|
+ : BaseType(pthis, function_to_bind) {
|
|
|
+ }
|
|
|
+
|
|
|
+ template < class X, class Y >
|
|
|
+ FastDelegate(const Y* pthis,
|
|
|
+ R(X::* function_to_bind)(Param1 p1, Param2 p2, Param3 p3) const)
|
|
|
+ : BaseType(pthis, function_to_bind)
|
|
|
+ {
|
|
|
+ }
|
|
|
+
|
|
|
+ FastDelegate(R(*function_to_bind)(Param1 p1, Param2 p2, Param3 p3))
|
|
|
+ : BaseType(function_to_bind) {
|
|
|
+ }
|
|
|
+ void operator = (const BaseType& x) {
|
|
|
+ *static_cast<BaseType*>(this) = x;
|
|
|
+ }
|
|
|
+ };
|
|
|
+
|
|
|
+ //N=4
|
|
|
+ // Specialization to allow use of
|
|
|
+ // FastDelegate< R ( Param1, Param2, Param3, Param4 ) >
|
|
|
+ // instead of
|
|
|
+ // FastDelegate4 < Param1, Param2, Param3, Param4, R >
|
|
|
+ template<typename R, class Param1, class Param2, class Param3, class Param4>
|
|
|
+ class FastDelegate< R(Param1, Param2, Param3, Param4) >
|
|
|
+ // Inherit from FastDelegate4 so that it can be treated just like a FastDelegate4
|
|
|
+ : public FastDelegate4 < Param1, Param2, Param3, Param4, R >
|
|
|
+ {
|
|
|
+ public:
|
|
|
+ // Make using the base type a bit easier via typedef.
|
|
|
+ typedef FastDelegate4 < Param1, Param2, Param3, Param4, R > BaseType;
|
|
|
+
|
|
|
+ // Allow users access to the specific type of this delegate.
|
|
|
+ typedef FastDelegate SelfType;
|
|
|
+
|
|
|
+ // Mimic the base class constructors.
|
|
|
+ FastDelegate() : BaseType() {}
|
|
|
+
|
|
|
+ template < class X, class Y >
|
|
|
+ FastDelegate(Y* pthis,
|
|
|
+ R(X::* function_to_bind)(Param1 p1, Param2 p2, Param3 p3, Param4 p4))
|
|
|
+ : BaseType(pthis, function_to_bind) {
|
|
|
+ }
|
|
|
+
|
|
|
+ template < class X, class Y >
|
|
|
+ FastDelegate(const Y* pthis,
|
|
|
+ R(X::* function_to_bind)(Param1 p1, Param2 p2, Param3 p3, Param4 p4) const)
|
|
|
+ : BaseType(pthis, function_to_bind)
|
|
|
+ {
|
|
|
+ }
|
|
|
+
|
|
|
+ FastDelegate(R(*function_to_bind)(Param1 p1, Param2 p2, Param3 p3, Param4 p4))
|
|
|
+ : BaseType(function_to_bind) {
|
|
|
+ }
|
|
|
+ void operator = (const BaseType& x) {
|
|
|
+ *static_cast<BaseType*>(this) = x;
|
|
|
+ }
|
|
|
+ };
|
|
|
+
|
|
|
+ //N=5
|
|
|
+ // Specialization to allow use of
|
|
|
+ // FastDelegate< R ( Param1, Param2, Param3, Param4, Param5 ) >
|
|
|
+ // instead of
|
|
|
+ // FastDelegate5 < Param1, Param2, Param3, Param4, Param5, R >
|
|
|
+ template<typename R, class Param1, class Param2, class Param3, class Param4, class Param5>
|
|
|
+ class FastDelegate< R(Param1, Param2, Param3, Param4, Param5) >
|
|
|
+ // Inherit from FastDelegate5 so that it can be treated just like a FastDelegate5
|
|
|
+ : public FastDelegate5 < Param1, Param2, Param3, Param4, Param5, R >
|
|
|
+ {
|
|
|
+ public:
|
|
|
+ // Make using the base type a bit easier via typedef.
|
|
|
+ typedef FastDelegate5 < Param1, Param2, Param3, Param4, Param5, R > BaseType;
|
|
|
+
|
|
|
+ // Allow users access to the specific type of this delegate.
|
|
|
+ typedef FastDelegate SelfType;
|
|
|
+
|
|
|
+ // Mimic the base class constructors.
|
|
|
+ FastDelegate() : BaseType() {}
|
|
|
+
|
|
|
+ template < class X, class Y >
|
|
|
+ FastDelegate(Y* pthis,
|
|
|
+ R(X::* function_to_bind)(Param1 p1, Param2 p2, Param3 p3, Param4 p4, Param5 p5))
|
|
|
+ : BaseType(pthis, function_to_bind) {
|
|
|
+ }
|
|
|
+
|
|
|
+ template < class X, class Y >
|
|
|
+ FastDelegate(const Y* pthis,
|
|
|
+ R(X::* function_to_bind)(Param1 p1, Param2 p2, Param3 p3, Param4 p4, Param5 p5) const)
|
|
|
+ : BaseType(pthis, function_to_bind)
|
|
|
+ {
|
|
|
+ }
|
|
|
+
|
|
|
+ FastDelegate(R(*function_to_bind)(Param1 p1, Param2 p2, Param3 p3, Param4 p4, Param5 p5))
|
|
|
+ : BaseType(function_to_bind) {
|
|
|
+ }
|
|
|
+ void operator = (const BaseType& x) {
|
|
|
+ *static_cast<BaseType*>(this) = x;
|
|
|
+ }
|
|
|
+ };
|
|
|
+
|
|
|
+ //N=6
|
|
|
+ // Specialization to allow use of
|
|
|
+ // FastDelegate< R ( Param1, Param2, Param3, Param4, Param5, Param6 ) >
|
|
|
+ // instead of
|
|
|
+ // FastDelegate6 < Param1, Param2, Param3, Param4, Param5, Param6, R >
|
|
|
+ template<typename R, class Param1, class Param2, class Param3, class Param4, class Param5, class Param6>
|
|
|
+ class FastDelegate< R(Param1, Param2, Param3, Param4, Param5, Param6) >
|
|
|
+ // Inherit from FastDelegate6 so that it can be treated just like a FastDelegate6
|
|
|
+ : public FastDelegate6 < Param1, Param2, Param3, Param4, Param5, Param6, R >
|
|
|
+ {
|
|
|
+ public:
|
|
|
+ // Make using the base type a bit easier via typedef.
|
|
|
+ typedef FastDelegate6 < Param1, Param2, Param3, Param4, Param5, Param6, R > BaseType;
|
|
|
+
|
|
|
+ // Allow users access to the specific type of this delegate.
|
|
|
+ typedef FastDelegate SelfType;
|
|
|
+
|
|
|
+ // Mimic the base class constructors.
|
|
|
+ FastDelegate() : BaseType() {}
|
|
|
+
|
|
|
+ template < class X, class Y >
|
|
|
+ FastDelegate(Y* pthis,
|
|
|
+ R(X::* function_to_bind)(Param1 p1, Param2 p2, Param3 p3, Param4 p4, Param5 p5, Param6 p6))
|
|
|
+ : BaseType(pthis, function_to_bind) {
|
|
|
+ }
|
|
|
+
|
|
|
+ template < class X, class Y >
|
|
|
+ FastDelegate(const Y* pthis,
|
|
|
+ R(X::* function_to_bind)(Param1 p1, Param2 p2, Param3 p3, Param4 p4, Param5 p5, Param6 p6) const)
|
|
|
+ : BaseType(pthis, function_to_bind)
|
|
|
+ {
|
|
|
+ }
|
|
|
+
|
|
|
+ FastDelegate(R(*function_to_bind)(Param1 p1, Param2 p2, Param3 p3, Param4 p4, Param5 p5, Param6 p6))
|
|
|
+ : BaseType(function_to_bind) {
|
|
|
+ }
|
|
|
+ void operator = (const BaseType& x) {
|
|
|
+ *static_cast<BaseType*>(this) = x;
|
|
|
+ }
|
|
|
+ };
|
|
|
+
|
|
|
+ //N=7
|
|
|
+ // Specialization to allow use of
|
|
|
+ // FastDelegate< R ( Param1, Param2, Param3, Param4, Param5, Param6, Param7 ) >
|
|
|
+ // instead of
|
|
|
+ // FastDelegate7 < Param1, Param2, Param3, Param4, Param5, Param6, Param7, R >
|
|
|
+ template<typename R, class Param1, class Param2, class Param3, class Param4, class Param5, class Param6, class Param7>
|
|
|
+ class FastDelegate< R(Param1, Param2, Param3, Param4, Param5, Param6, Param7) >
|
|
|
+ // Inherit from FastDelegate7 so that it can be treated just like a FastDelegate7
|
|
|
+ : public FastDelegate7 < Param1, Param2, Param3, Param4, Param5, Param6, Param7, R >
|
|
|
+ {
|
|
|
+ public:
|
|
|
+ // Make using the base type a bit easier via typedef.
|
|
|
+ typedef FastDelegate7 < Param1, Param2, Param3, Param4, Param5, Param6, Param7, R > BaseType;
|
|
|
+
|
|
|
+ // Allow users access to the specific type of this delegate.
|
|
|
+ typedef FastDelegate SelfType;
|
|
|
+
|
|
|
+ // Mimic the base class constructors.
|
|
|
+ FastDelegate() : BaseType() {}
|
|
|
+
|
|
|
+ template < class X, class Y >
|
|
|
+ FastDelegate(Y* pthis,
|
|
|
+ R(X::* function_to_bind)(Param1 p1, Param2 p2, Param3 p3, Param4 p4, Param5 p5, Param6 p6, Param7 p7))
|
|
|
+ : BaseType(pthis, function_to_bind) {
|
|
|
+ }
|
|
|
+
|
|
|
+ template < class X, class Y >
|
|
|
+ FastDelegate(const Y* pthis,
|
|
|
+ R(X::* function_to_bind)(Param1 p1, Param2 p2, Param3 p3, Param4 p4, Param5 p5, Param6 p6, Param7 p7) const)
|
|
|
+ : BaseType(pthis, function_to_bind)
|
|
|
+ {
|
|
|
+ }
|
|
|
+
|
|
|
+ FastDelegate(R(*function_to_bind)(Param1 p1, Param2 p2, Param3 p3, Param4 p4, Param5 p5, Param6 p6, Param7 p7))
|
|
|
+ : BaseType(function_to_bind) {
|
|
|
+ }
|
|
|
+ void operator = (const BaseType& x) {
|
|
|
+ *static_cast<BaseType*>(this) = x;
|
|
|
+ }
|
|
|
+ };
|
|
|
+
|
|
|
+ //N=8
|
|
|
+ // Specialization to allow use of
|
|
|
+ // FastDelegate< R ( Param1, Param2, Param3, Param4, Param5, Param6, Param7, Param8 ) >
|
|
|
+ // instead of
|
|
|
+ // FastDelegate8 < Param1, Param2, Param3, Param4, Param5, Param6, Param7, Param8, R >
|
|
|
+ template<typename R, class Param1, class Param2, class Param3, class Param4, class Param5, class Param6, class Param7, class Param8>
|
|
|
+ class FastDelegate< R(Param1, Param2, Param3, Param4, Param5, Param6, Param7, Param8) >
|
|
|
+ // Inherit from FastDelegate8 so that it can be treated just like a FastDelegate8
|
|
|
+ : public FastDelegate8 < Param1, Param2, Param3, Param4, Param5, Param6, Param7, Param8, R >
|
|
|
+ {
|
|
|
+ public:
|
|
|
+ // Make using the base type a bit easier via typedef.
|
|
|
+ typedef FastDelegate8 < Param1, Param2, Param3, Param4, Param5, Param6, Param7, Param8, R > BaseType;
|
|
|
+
|
|
|
+ // Allow users access to the specific type of this delegate.
|
|
|
+ typedef FastDelegate SelfType;
|
|
|
+
|
|
|
+ // Mimic the base class constructors.
|
|
|
+ FastDelegate() : BaseType() {}
|
|
|
+
|
|
|
+ template < class X, class Y >
|
|
|
+ FastDelegate(Y* pthis,
|
|
|
+ R(X::* function_to_bind)(Param1 p1, Param2 p2, Param3 p3, Param4 p4, Param5 p5, Param6 p6, Param7 p7, Param8 p8))
|
|
|
+ : BaseType(pthis, function_to_bind) {
|
|
|
+ }
|
|
|
+
|
|
|
+ template < class X, class Y >
|
|
|
+ FastDelegate(const Y* pthis,
|
|
|
+ R(X::* function_to_bind)(Param1 p1, Param2 p2, Param3 p3, Param4 p4, Param5 p5, Param6 p6, Param7 p7, Param8 p8) const)
|
|
|
+ : BaseType(pthis, function_to_bind)
|
|
|
+ {
|
|
|
+ }
|
|
|
+
|
|
|
+ FastDelegate(R(*function_to_bind)(Param1 p1, Param2 p2, Param3 p3, Param4 p4, Param5 p5, Param6 p6, Param7 p7, Param8 p8))
|
|
|
+ : BaseType(function_to_bind) {
|
|
|
+ }
|
|
|
+ void operator = (const BaseType& x) {
|
|
|
+ *static_cast<BaseType*>(this) = x;
|
|
|
+ }
|
|
|
+ };
|
|
|
+
|
|
|
+
|
|
|
+#endif //FASTDELEGATE_ALLOW_FUNCTION_TYPE_SYNTAX
|
|
|
+
|
|
|
+ ////////////////////////////////////////////////////////////////////////////////
|
|
|
+ // Fast Delegates, part 5:
|
|
|
+ //
|
|
|
+ // MakeDelegate() helper function
|
|
|
+ //
|
|
|
+ // MakeDelegate(&x, &X::func) returns a fastdelegate of the type
|
|
|
+ // necessary for calling x.func() with the correct number of arguments.
|
|
|
+ // This makes it possible to eliminate many typedefs from user code.
|
|
|
+ //
|
|
|
+ ////////////////////////////////////////////////////////////////////////////////
|
|
|
+
|
|
|
+ // Also declare overloads of a MakeDelegate() global function to
|
|
|
+ // reduce the need for typedefs.
|
|
|
+ // We need seperate overloads for const and non-const member functions.
|
|
|
+ // Also, because of the weird rule about the class of derived member function pointers,
|
|
|
+ // implicit downcasts may need to be applied later to the 'this' pointer.
|
|
|
+ // That's why two classes (X and Y) appear in the definitions. Y must be implicitly
|
|
|
+ // castable to X.
|
|
|
+
|
|
|
+ // Workaround for VC6. VC6 needs void return types converted into DefaultVoid.
|
|
|
+ // GCC 3.2 and later won't compile this unless it's preceded by 'typename',
|
|
|
+ // but VC6 doesn't allow 'typename' in this context.
|
|
|
+ // So, I have to use a macro.
|
|
|
+
|
|
|
+#ifdef FASTDLGT_VC6
|
|
|
+#define FASTDLGT_RETTYPE detail::VoidToDefaultVoid<RetType>::type
|
|
|
+#else
|
|
|
+#define FASTDLGT_RETTYPE RetType
|
|
|
+#endif
|
|
|
+
|
|
|
+//N=0
|
|
|
+ template <class X, class Y, class RetType>
|
|
|
+ FastDelegate0<FASTDLGT_RETTYPE> MakeDelegate(Y* x, RetType(X::* func)()) {
|
|
|
+ return FastDelegate0<FASTDLGT_RETTYPE>(x, func);
|
|
|
+ }
|
|
|
+
|
|
|
+ template <class X, class Y, class RetType>
|
|
|
+ FastDelegate0<FASTDLGT_RETTYPE> MakeDelegate(Y* x, RetType(X::* func)() const) {
|
|
|
+ return FastDelegate0<FASTDLGT_RETTYPE>(x, func);
|
|
|
+ }
|
|
|
+
|
|
|
+ //N=1
|
|
|
+ template <class X, class Y, class Param1, class RetType>
|
|
|
+ FastDelegate1<Param1, FASTDLGT_RETTYPE> MakeDelegate(Y* x, RetType(X::* func)(Param1 p1)) {
|
|
|
+ return FastDelegate1<Param1, FASTDLGT_RETTYPE>(x, func);
|
|
|
+ }
|
|
|
+
|
|
|
+ template <class X, class Y, class Param1, class RetType>
|
|
|
+ FastDelegate1<Param1, FASTDLGT_RETTYPE> MakeDelegate(Y* x, RetType(X::* func)(Param1 p1) const) {
|
|
|
+ return FastDelegate1<Param1, FASTDLGT_RETTYPE>(x, func);
|
|
|
+ }
|
|
|
+
|
|
|
+ //N=2
|
|
|
+ template <class X, class Y, class Param1, class Param2, class RetType>
|
|
|
+ FastDelegate2<Param1, Param2, FASTDLGT_RETTYPE> MakeDelegate(Y* x, RetType(X::* func)(Param1 p1, Param2 p2)) {
|
|
|
+ return FastDelegate2<Param1, Param2, FASTDLGT_RETTYPE>(x, func);
|
|
|
+ }
|
|
|
+
|
|
|
+ template <class X, class Y, class Param1, class Param2, class RetType>
|
|
|
+ FastDelegate2<Param1, Param2, FASTDLGT_RETTYPE> MakeDelegate(Y* x, RetType(X::* func)(Param1 p1, Param2 p2) const) {
|
|
|
+ return FastDelegate2<Param1, Param2, FASTDLGT_RETTYPE>(x, func);
|
|
|
+ }
|
|
|
+
|
|
|
+ //N=3
|
|
|
+ template <class X, class Y, class Param1, class Param2, class Param3, class RetType>
|
|
|
+ FastDelegate3<Param1, Param2, Param3, FASTDLGT_RETTYPE> MakeDelegate(Y* x, RetType(X::* func)(Param1 p1, Param2 p2, Param3 p3)) {
|
|
|
+ return FastDelegate3<Param1, Param2, Param3, FASTDLGT_RETTYPE>(x, func);
|
|
|
+ }
|
|
|
+
|
|
|
+ template <class X, class Y, class Param1, class Param2, class Param3, class RetType>
|
|
|
+ FastDelegate3<Param1, Param2, Param3, FASTDLGT_RETTYPE> MakeDelegate(Y* x, RetType(X::* func)(Param1 p1, Param2 p2, Param3 p3) const) {
|
|
|
+ return FastDelegate3<Param1, Param2, Param3, FASTDLGT_RETTYPE>(x, func);
|
|
|
+ }
|
|
|
+
|
|
|
+ //N=4
|
|
|
+ template <class X, class Y, class Param1, class Param2, class Param3, class Param4, class RetType>
|
|
|
+ FastDelegate4<Param1, Param2, Param3, Param4, FASTDLGT_RETTYPE> MakeDelegate(Y* x, RetType(X::* func)(Param1 p1, Param2 p2, Param3 p3, Param4 p4)) {
|
|
|
+ return FastDelegate4<Param1, Param2, Param3, Param4, FASTDLGT_RETTYPE>(x, func);
|
|
|
+ }
|
|
|
+
|
|
|
+ template <class X, class Y, class Param1, class Param2, class Param3, class Param4, class RetType>
|
|
|
+ FastDelegate4<Param1, Param2, Param3, Param4, FASTDLGT_RETTYPE> MakeDelegate(Y* x, RetType(X::* func)(Param1 p1, Param2 p2, Param3 p3, Param4 p4) const) {
|
|
|
+ return FastDelegate4<Param1, Param2, Param3, Param4, FASTDLGT_RETTYPE>(x, func);
|
|
|
+ }
|
|
|
+
|
|
|
+ //N=5
|
|
|
+ template <class X, class Y, class Param1, class Param2, class Param3, class Param4, class Param5, class RetType>
|
|
|
+ FastDelegate5<Param1, Param2, Param3, Param4, Param5, FASTDLGT_RETTYPE> MakeDelegate(Y* x, RetType(X::* func)(Param1 p1, Param2 p2, Param3 p3, Param4 p4, Param5 p5)) {
|
|
|
+ return FastDelegate5<Param1, Param2, Param3, Param4, Param5, FASTDLGT_RETTYPE>(x, func);
|
|
|
+ }
|
|
|
+
|
|
|
+ template <class X, class Y, class Param1, class Param2, class Param3, class Param4, class Param5, class RetType>
|
|
|
+ FastDelegate5<Param1, Param2, Param3, Param4, Param5, FASTDLGT_RETTYPE> MakeDelegate(Y* x, RetType(X::* func)(Param1 p1, Param2 p2, Param3 p3, Param4 p4, Param5 p5) const) {
|
|
|
+ return FastDelegate5<Param1, Param2, Param3, Param4, Param5, FASTDLGT_RETTYPE>(x, func);
|
|
|
+ }
|
|
|
+
|
|
|
+ //N=6
|
|
|
+ template <class X, class Y, class Param1, class Param2, class Param3, class Param4, class Param5, class Param6, class RetType>
|
|
|
+ FastDelegate6<Param1, Param2, Param3, Param4, Param5, Param6, FASTDLGT_RETTYPE> MakeDelegate(Y* x, RetType(X::* func)(Param1 p1, Param2 p2, Param3 p3, Param4 p4, Param5 p5, Param6 p6)) {
|
|
|
+ return FastDelegate6<Param1, Param2, Param3, Param4, Param5, Param6, FASTDLGT_RETTYPE>(x, func);
|
|
|
+ }
|
|
|
+
|
|
|
+ template <class X, class Y, class Param1, class Param2, class Param3, class Param4, class Param5, class Param6, class RetType>
|
|
|
+ FastDelegate6<Param1, Param2, Param3, Param4, Param5, Param6, FASTDLGT_RETTYPE> MakeDelegate(Y* x, RetType(X::* func)(Param1 p1, Param2 p2, Param3 p3, Param4 p4, Param5 p5, Param6 p6) const) {
|
|
|
+ return FastDelegate6<Param1, Param2, Param3, Param4, Param5, Param6, FASTDLGT_RETTYPE>(x, func);
|
|
|
+ }
|
|
|
+
|
|
|
+ //N=7
|
|
|
+ template <class X, class Y, class Param1, class Param2, class Param3, class Param4, class Param5, class Param6, class Param7, class RetType>
|
|
|
+ FastDelegate7<Param1, Param2, Param3, Param4, Param5, Param6, Param7, FASTDLGT_RETTYPE> MakeDelegate(Y* x, RetType(X::* func)(Param1 p1, Param2 p2, Param3 p3, Param4 p4, Param5 p5, Param6 p6, Param7 p7)) {
|
|
|
+ return FastDelegate7<Param1, Param2, Param3, Param4, Param5, Param6, Param7, FASTDLGT_RETTYPE>(x, func);
|
|
|
+ }
|
|
|
+
|
|
|
+ template <class X, class Y, class Param1, class Param2, class Param3, class Param4, class Param5, class Param6, class Param7, class RetType>
|
|
|
+ FastDelegate7<Param1, Param2, Param3, Param4, Param5, Param6, Param7, FASTDLGT_RETTYPE> MakeDelegate(Y* x, RetType(X::* func)(Param1 p1, Param2 p2, Param3 p3, Param4 p4, Param5 p5, Param6 p6, Param7 p7) const) {
|
|
|
+ return FastDelegate7<Param1, Param2, Param3, Param4, Param5, Param6, Param7, FASTDLGT_RETTYPE>(x, func);
|
|
|
+ }
|
|
|
+
|
|
|
+ //N=8
|
|
|
+ template <class X, class Y, class Param1, class Param2, class Param3, class Param4, class Param5, class Param6, class Param7, class Param8, class RetType>
|
|
|
+ FastDelegate8<Param1, Param2, Param3, Param4, Param5, Param6, Param7, Param8, FASTDLGT_RETTYPE> MakeDelegate(Y* x, RetType(X::* func)(Param1 p1, Param2 p2, Param3 p3, Param4 p4, Param5 p5, Param6 p6, Param7 p7, Param8 p8)) {
|
|
|
+ return FastDelegate8<Param1, Param2, Param3, Param4, Param5, Param6, Param7, Param8, FASTDLGT_RETTYPE>(x, func);
|
|
|
+ }
|
|
|
+
|
|
|
+ template <class X, class Y, class Param1, class Param2, class Param3, class Param4, class Param5, class Param6, class Param7, class Param8, class RetType>
|
|
|
+ FastDelegate8<Param1, Param2, Param3, Param4, Param5, Param6, Param7, Param8, FASTDLGT_RETTYPE> MakeDelegate(Y* x, RetType(X::* func)(Param1 p1, Param2 p2, Param3 p3, Param4 p4, Param5 p5, Param6 p6, Param7 p7, Param8 p8) const) {
|
|
|
+ return FastDelegate8<Param1, Param2, Param3, Param4, Param5, Param6, Param7, Param8, FASTDLGT_RETTYPE>(x, func);
|
|
|
+ }
|
|
|
+
|
|
|
+
|
|
|
+ // clean up after ourselves...
|
|
|
+#undef FASTDLGT_RETTYPE
|
|
|
+
|
|
|
+} // namespace fastdelegate
|
|
|
+
|
|
|
+#endif // !defined(FASTDELEGATE_H)
|
|
|
+
|
