2037 lines
85 KiB
C++
2037 lines
85 KiB
C++
//
|
||
// Efficient delegates in C++ that generate only two lines of asm code!
|
||
// Documentation is found at http://www.codeproject.com/cpp/FastDelegate.asp
|
||
//
|
||
// - Don Clugston, Mar 2004.
|
||
// Major contributions were made by Jody Hagins.
|
||
//
|
||
//
|
||
// Adapted for WinAVR by Lauri Kirikal, Mar 2007.
|
||
//
|
||
// History:
|
||
// 24-Apr-04 1.0 * Submitted to CodeProject.
|
||
// 28-Apr-04 1.1 * Prevent most unsafe uses of evil static function hack.
|
||
// * Improved syntax for horrible_cast (thanks Paul Bludov).
|
||
// * Tested on Metrowerks MWCC and Intel ICL (IA32)
|
||
// * Compiled, but not run, on Comeau C++ and Intel Itanium ICL.
|
||
// 27-Jun-04 1.2 * Now works on Borland C++ Builder 5.5
|
||
// * Now works on /clr "managed C++" code on VC7, VC7.1
|
||
// * Comeau C++ now compiles without warnings.
|
||
// * Prevent the virtual inheritance case from being used on
|
||
// VC6 and earlier, which generate incorrect code.
|
||
// * Improved warning and error messages. Non-standard hacks
|
||
// now have compile-time checks to make them safer.
|
||
// * implicit_cast used instead of static_cast in many cases.
|
||
// * If calling a const member function, a const class pointer can be used.
|
||
// * MakeDelegate() global helper function added to simplify pass-by-value.
|
||
// * Added fastdelegate.Clear()
|
||
// 16-Jul-04 1.2.1* Workaround for gcc bug (const member function pointers in templates)
|
||
// 30-Oct-04 1.3 * Support for (non-void) return values.
|
||
// * No more workarounds in client code!
|
||
// MSVC and Intel now use a clever hack invented by John Dlugosz:
|
||
// - The FASTDELEGATEDECLARE workaround is no longer necessary.
|
||
// - No more warning messages for VC6
|
||
// * Less use of macros. Error messages should be more comprehensible.
|
||
// * Added include guards
|
||
// * Added FastDelegate::Empty() to test if invocation is safe (Thanks Neville Franks).
|
||
// * Now tested on VS 2005 Express Beta, PGI C++
|
||
// 24-Dec-04 1.4 * Added DelegateMemento, to allow collections of disparate delegates.
|
||
// * <,>,<=,>= comparison operators to allow storage in ordered containers.
|
||
// * Substantial reduction of code size, especially the 'Closure' class.
|
||
// * Standardised all the compiler-specific workarounds.
|
||
// * MFP conversion now works for CodePlay (but not yet supported in the full code).
|
||
// * Now compiles without warnings on _any_ supported compiler, including BCC 5.5.1
|
||
// * New syntax: FastDelegate< int (char *, double) >.
|
||
// 14-Feb-05 1.4.1* Now treats =0 as equivalent to .Clear(), ==0 as equivalent to .Empty(). (Thanks elfric).
|
||
// * Now tested on Intel ICL for AMD64, VS2005 Beta for AMD64 and Itanium.
|
||
// 30-Mar-05 1.5 * Safebool idiom: "if (dg)" is now equivalent to "if (!dg.Empty())"
|
||
// * Fully supported by CodePlay VectorC
|
||
// * Bugfix for Metrowerks: Empty() was buggy because a valid MFP can be 0 on MWCC!
|
||
// * More optimal assignment,== and != operators for static function pointers.
|
||
|
||
/*
|
||
Minor Changes For AVR C++ Lib Compatibility
|
||
|
||
STARTS ...
|
||
*/
|
||
#ifndef __AVR_CPP_DELEGATE_H__
|
||
#define __AVR_CPP_DELEGATE_H__
|
||
|
||
#if !(defined(EXCLUDE_FAST_DELEGATE) && defined(EXCLUDE_MULTI_DELEGATE) && defined(EXLUDE_DATA_DELEGATE))
|
||
|
||
#ifndef __cplusplus
|
||
#error "Delegate.h needs C++ compiler."
|
||
#else
|
||
|
||
/*
|
||
Header file memory.h is missing in WinAVR.
|
||
Needed functions are defined in string.h
|
||
|
||
Lauri Kirikal
|
||
*/
|
||
#ifdef __AVR__
|
||
#include <string.h>
|
||
#else
|
||
#include <memory.h> // to allow <,> comparisons
|
||
#endif
|
||
|
||
/*
|
||
... ENDS
|
||
|
||
Lauri Kirikal
|
||
*/
|
||
|
||
////////////////////////////////////////////////////////////////////////////////
|
||
// Configuration options
|
||
//
|
||
////////////////////////////////////////////////////////////////////////////////
|
||
|
||
// Uncomment the following #define for optimally-sized delegates.
|
||
// In this case, the generated asm code is almost identical to the code you'd get
|
||
// if the compiler had native support for delegates.
|
||
// It will not work on systems where sizeof(dataptr) < sizeof(codeptr).
|
||
// Thus, it will not work for DOS compilers using the medium model.
|
||
// It will also probably fail on some DSP systems.
|
||
#define FASTDELEGATE_USESTATICFUNCTIONHACK
|
||
|
||
// Uncomment the next line to allow function declarator syntax.
|
||
// It is automatically enabled for those compilers where it is known to work.
|
||
//#define FASTDELEGATE_ALLOW_FUNCTION_TYPE_SYNTAX
|
||
|
||
////////////////////////////////////////////////////////////////////////////////
|
||
// Compiler identification for workarounds
|
||
//
|
||
////////////////////////////////////////////////////////////////////////////////
|
||
|
||
// Compiler identification. It's not easy to identify Visual C++ because
|
||
// many vendors fraudulently define Microsoft's identifiers.
|
||
#if defined(_MSC_VER) && !defined(__MWERKS__) && !defined(__VECTOR_C) && !defined(__ICL) && !defined(__BORLANDC__)
|
||
#define FASTDLGT_ISMSVC
|
||
|
||
#if (_MSC_VER <1300) // Many workarounds are required for VC6.
|
||
#define FASTDLGT_VC6
|
||
#pragma warning(disable:4786) // disable this ridiculous warning
|
||
#endif
|
||
|
||
#endif
|
||
|
||
// Does the compiler uses Microsoft's member function pointer structure?
|
||
// If so, it needs special treatment.
|
||
// Metrowerks CodeWarrior, Intel, and CodePlay fraudulently define Microsoft's
|
||
// identifier, _MSC_VER. We need to filter Metrowerks out.
|
||
#if defined(_MSC_VER) && !defined(__MWERKS__)
|
||
#define FASTDLGT_MICROSOFT_MFP
|
||
|
||
#if !defined(__VECTOR_C)
|
||
// CodePlay doesn't have the __single/multi/virtual_inheritance keywords
|
||
#define FASTDLGT_HASINHERITANCE_KEYWORDS
|
||
#endif
|
||
#endif
|
||
|
||
// Does it allow function declarator syntax? The following compilers are known to work:
|
||
#if defined(FASTDLGT_ISMSVC) && (_MSC_VER >=1310) // VC 7.1
|
||
#define FASTDELEGATE_ALLOW_FUNCTION_TYPE_SYNTAX
|
||
#endif
|
||
|
||
// Gcc(2.95+), and versions of Digital Mars, Intel and Comeau in common use.
|
||
#if defined (__DMC__) || defined(__GNUC__) || defined(__ICL) || defined(__COMO__)
|
||
#define FASTDELEGATE_ALLOW_FUNCTION_TYPE_SYNTAX
|
||
#endif
|
||
|
||
// It works on Metrowerks MWCC 3.2.2. From boost.Config it should work on earlier ones too.
|
||
#if defined (__MWERKS__)
|
||
#define FASTDELEGATE_ALLOW_FUNCTION_TYPE_SYNTAX
|
||
#endif
|
||
|
||
#ifdef __GNUC__ // Workaround GCC bug #8271
|
||
// At present, GCC doesn't recognize constness of MFPs in templates
|
||
#define FASTDELEGATE_GCC_BUG_8271
|
||
#endif
|
||
|
||
|
||
|
||
////////////////////////////////////////////////////////////////////////////////
|
||
// General tricks used in this code
|
||
//
|
||
// (a) Error messages are generated by typdefing an array of negative size to
|
||
// generate compile-time errors.
|
||
// (b) Warning messages on MSVC are generated by declaring unused variables, and
|
||
// enabling the "variable XXX is never used" warning.
|
||
// (c) Unions are used in a few compiler-specific cases to perform illegal casts.
|
||
// (d) For Microsoft and Intel, when adjusting the 'this' pointer, it's cast to
|
||
// (char *) first to ensure that the correct number of *bytes* are added.
|
||
//
|
||
////////////////////////////////////////////////////////////////////////////////
|
||
// Helper templates
|
||
//
|
||
////////////////////////////////////////////////////////////////////////////////
|
||
|
||
/*
|
||
namespace names modified:
|
||
fastdelegate -> CppDelegate
|
||
detail -> Internal
|
||
|
||
Lauri Kirikal
|
||
*/
|
||
|
||
namespace CppDelegate {
|
||
namespace Internal { // we'll hide the implementation details in a nested namespace.
|
||
|
||
// implicit_cast< >
|
||
// I believe this was originally going to be in the C++ standard but
|
||
// was left out by accident. It's even milder than static_cast.
|
||
// I use it instead of static_cast<> to emphasize that I'm not doing
|
||
// anything nasty.
|
||
// Usage is identical to static_cast<>
|
||
template <class OutputClass, class InputClass>
|
||
inline OutputClass implicit_cast(InputClass input){
|
||
return input;
|
||
}
|
||
|
||
// horrible_cast< >
|
||
// This is truly evil. It completely subverts C++'s type system, allowing you
|
||
// to cast from any class to any other class. Technically, using a union
|
||
// to perform the cast is undefined behaviour (even in C). But we can see if
|
||
// it is OK by checking that the union is the same size as each of its members.
|
||
// horrible_cast<> should only be used for compiler-specific workarounds.
|
||
// Usage is identical to reinterpret_cast<>.
|
||
|
||
// This union is declared outside the horrible_cast because BCC 5.5.1
|
||
// can't inline a function with a nested class, and gives a warning.
|
||
template <class OutputClass, class InputClass>
|
||
union horrible_union{
|
||
OutputClass out;
|
||
InputClass in;
|
||
};
|
||
|
||
template <class OutputClass, class InputClass>
|
||
inline OutputClass horrible_cast(const InputClass input){
|
||
horrible_union<OutputClass, InputClass> u;
|
||
// Cause a compile-time error if in, out and u are not the same size.
|
||
// If the compile fails here, it means the compiler has peculiar
|
||
// unions which would prevent the cast from working.
|
||
typedef int ERROR_CantUseHorrible_cast[sizeof(InputClass)==sizeof(u)
|
||
&& sizeof(InputClass)==sizeof(OutputClass) ? 1 : -1];
|
||
u.in = input;
|
||
return u.out;
|
||
}
|
||
|
||
////////////////////////////////////////////////////////////////////////////////
|
||
// Workarounds
|
||
//
|
||
////////////////////////////////////////////////////////////////////////////////
|
||
|
||
// Backwards compatibility: This macro used to be necessary in the virtual inheritance
|
||
// case for Intel and Microsoft. Now it just forward-declares the class.
|
||
#define FASTDELEGATEDECLARE(CLASSNAME) class CLASSNAME;
|
||
|
||
// Prevent use of the static function hack with the DOS medium model.
|
||
#ifdef __MEDIUM__
|
||
#undef FASTDELEGATE_USESTATICFUNCTIONHACK
|
||
#endif
|
||
|
||
// DefaultVoid - a workaround for 'void' templates in VC6.
|
||
//
|
||
// (1) VC6 and earlier do not allow 'void' as a default template argument.
|
||
// (2) They also doesn't allow you to return 'void' from a function.
|
||
//
|
||
// Workaround for (1): Declare a dummy type 'DefaultVoid' which we use
|
||
// when we'd like to use 'void'. We convert it into 'void' and back
|
||
// using the templates DefaultVoidToVoid<> and VoidToDefaultVoid<>.
|
||
// Workaround for (2): On VC6, the code for calling a void function is
|
||
// identical to the code for calling a non-void function in which the
|
||
// return value is never used, provided the return value is returned
|
||
// in the EAX register, rather than on the stack.
|
||
// This is true for most fundamental types such as int, enum, void *.
|
||
// Const void * is the safest option since it doesn't participate
|
||
// in any automatic conversions. But on a 16-bit compiler it might
|
||
// cause extra code to be generated, so we disable it for all compilers
|
||
// except for VC6 (and VC5).
|
||
#ifdef FASTDLGT_VC6
|
||
// VC6 workaround
|
||
typedef const void * DefaultVoid;
|
||
#else
|
||
// On any other compiler, just use a normal void.
|
||
typedef void DefaultVoid;
|
||
#endif
|
||
|
||
// Translate from 'DefaultVoid' to 'void'.
|
||
// Everything else is unchanged
|
||
template <class T>
|
||
struct DefaultVoidToVoid { typedef T type; };
|
||
|
||
template <>
|
||
struct DefaultVoidToVoid<DefaultVoid> { typedef void type; };
|
||
|
||
// Translate from 'void' into 'DefaultVoid'
|
||
// Everything else is unchanged
|
||
template <class T>
|
||
struct VoidToDefaultVoid { typedef T type; };
|
||
|
||
template <>
|
||
struct VoidToDefaultVoid<void> { typedef DefaultVoid type; };
|
||
|
||
|
||
|
||
////////////////////////////////////////////////////////////////////////////////
|
||
// Fast Delegates, part 1:
|
||
//
|
||
// Conversion of member function pointer to a standard form
|
||
//
|
||
////////////////////////////////////////////////////////////////////////////////
|
||
|
||
// GenericClass is a fake class, ONLY used to provide a type.
|
||
// It is vitally important that it is never defined, so that the compiler doesn't
|
||
// think it can optimize the invocation. For example, Borland generates simpler
|
||
// code if it knows the class only uses single inheritance.
|
||
|
||
// Compilers using Microsoft's structure need to be treated as a special case.
|
||
#ifdef FASTDLGT_MICROSOFT_MFP
|
||
|
||
#ifdef FASTDLGT_HASINHERITANCE_KEYWORDS
|
||
// For Microsoft and Intel, we want to ensure that it's the most efficient type of MFP
|
||
// (4 bytes), even when the /vmg option is used. Declaring an empty class
|
||
// would give 16 byte pointers in this case....
|
||
class __single_inheritance GenericClass;
|
||
#endif
|
||
// ...but for Codeplay, an empty class *always* gives 4 byte pointers.
|
||
// If compiled with the /clr option ("managed C++"), the JIT compiler thinks
|
||
// it needs to load GenericClass before it can call any of its functions,
|
||
// (compiles OK but crashes at runtime!), so we need to declare an
|
||
// empty class to make it happy.
|
||
// Codeplay and VC4 can't cope with the unknown_inheritance case either.
|
||
class GenericClass {};
|
||
#else
|
||
class GenericClass;
|
||
#endif
|
||
|
||
// The size of a single inheritance member function pointer.
|
||
const int SINGLE_MEMFUNCPTR_SIZE = sizeof(void (GenericClass::*)());
|
||
|
||
// SimplifyMemFunc< >::Convert()
|
||
//
|
||
// A template function that converts an arbitrary member function pointer into the
|
||
// simplest possible form of member function pointer, using a supplied 'this' pointer.
|
||
// According to the standard, this can be done legally with reinterpret_cast<>.
|
||
// For (non-standard) compilers which use member function pointers which vary in size
|
||
// depending on the class, we need to use knowledge of the internal structure of a
|
||
// member function pointer, as used by the compiler. Template specialization is used
|
||
// to distinguish between the sizes. Because some compilers don't support partial
|
||
// template specialisation, I use full specialisation of a wrapper struct.
|
||
|
||
// general case -- don't know how to convert it. Force a compile failure
|
||
template <int N>
|
||
struct SimplifyMemFunc {
|
||
template <class X, class XFuncType, class GenericMemFuncType>
|
||
inline static GenericClass *Convert(X *pthis, XFuncType function_to_bind,
|
||
GenericMemFuncType &bound_func) {
|
||
// Unsupported member function type -- force a compile failure.
|
||
// (it's illegal to have a array with negative size).
|
||
typedef char ERROR_Unsupported_member_function_pointer_on_this_compiler[N-100];
|
||
return 0;
|
||
}
|
||
};
|
||
|
||
// For compilers where all member func ptrs are the same size, everything goes here.
|
||
// For non-standard compilers, only single_inheritance classes go here.
|
||
template <>
|
||
struct SimplifyMemFunc<SINGLE_MEMFUNCPTR_SIZE> {
|
||
template <class X, class XFuncType, class GenericMemFuncType>
|
||
inline static GenericClass *Convert(X *pthis, XFuncType function_to_bind,
|
||
GenericMemFuncType &bound_func) {
|
||
#if defined __DMC__
|
||
// Digital Mars doesn't allow you to cast between abitrary PMF's,
|
||
// even though the standard says you can. The 32-bit compiler lets you
|
||
// static_cast through an int, but the DOS compiler doesn't.
|
||
bound_func = horrible_cast<GenericMemFuncType>(function_to_bind);
|
||
#else
|
||
bound_func = reinterpret_cast<GenericMemFuncType>(function_to_bind);
|
||
#endif
|
||
return reinterpret_cast<GenericClass *>(pthis);
|
||
}
|
||
};
|
||
|
||
////////////////////////////////////////////////////////////////////////////////
|
||
// Fast Delegates, part 1b:
|
||
//
|
||
// Workarounds for Microsoft and Intel
|
||
//
|
||
////////////////////////////////////////////////////////////////////////////////
|
||
|
||
|
||
// Compilers with member function pointers which violate the standard (MSVC, Intel, Codeplay),
|
||
// need to be treated as a special case.
|
||
#ifdef FASTDLGT_MICROSOFT_MFP
|
||
|
||
/*
|
||
... ERASED for shorter compiling time ...
|
||
|
||
Lauri Kirikal
|
||
*/
|
||
|
||
#error "MSVC, Intel, Codeplay compilers support erased from this file."
|
||
|
||
#endif // MS/Intel hacks
|
||
|
||
} // namespace Internal
|
||
|
||
////////////////////////////////////////////////////////////////////////////////
|
||
// 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.
|
||
|
||
/*
|
||
DelegateMemento moved from CppDelegate namespace to CppDelegate::Internal namespace
|
||
|
||
Lauri Kirikal
|
||
*/
|
||
namespace Internal
|
||
{
|
||
class DelegateMemento {
|
||
protected:
|
||
// the data is protected, not private, because many
|
||
// compilers have problems with template friends.
|
||
typedef void (Internal::GenericClass::*GenericMemFuncType)(); // arbitrary MFP.
|
||
Internal::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_pthis(right.m_pthis), m_pFunction(right.m_pFunction)
|
||
#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
|
||
}
|
||
};
|
||
} // namespace Internal
|
||
|
||
// 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 Internal {
|
||
|
||
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 Internal
|
||
|
||
////////////////////////////////////////////////////////////////////////////////
|
||
// 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.
|
||
|
||
|
||
/*
|
||
Member function names modified:
|
||
bind -> Bind
|
||
empty -> IsEmpty
|
||
clear -> Clear
|
||
|
||
Functions GetMemento and SetMemento: public -> protected
|
||
|
||
Lauri Kirikal
|
||
*/
|
||
|
||
// N=0
|
||
template<class RetType=Internal::DefaultVoid>
|
||
class FastDelegate0 {
|
||
private:
|
||
typedef typename Internal::DefaultVoidToVoid<RetType>::type DesiredRetType;
|
||
typedef DesiredRetType (*StaticFunctionPtr)();
|
||
typedef RetType (*UnvoidStaticFunctionPtr)();
|
||
typedef RetType (Internal::GenericClass::*GenericMemFn)();
|
||
typedef Internal::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(Internal::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(Internal::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(Internal::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(Internal::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 Invoke() const {
|
||
return (m_Closure.GetClosureThis()->*(m_Closure.GetClosureMemPtr()))(); }
|
||
inline RetType operator() () const {
|
||
return Invoke(); }
|
||
// 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 IsEmpty()? 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 IsEmpty() const {
|
||
return !m_Closure; }
|
||
void Clear() { m_Closure.Clear(); }
|
||
protected:
|
||
// Conversion to and from the DelegateMemento storage class
|
||
const Internal::DelegateMemento & GetMemento() { return m_Closure; }
|
||
void SetMemento(const Internal::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=Internal::DefaultVoid>
|
||
class FastDelegate1 {
|
||
private:
|
||
typedef typename Internal::DefaultVoidToVoid<RetType>::type DesiredRetType;
|
||
typedef DesiredRetType (*StaticFunctionPtr)(Param1 p1);
|
||
typedef RetType (*UnvoidStaticFunctionPtr)(Param1 p1);
|
||
typedef RetType (Internal::GenericClass::*GenericMemFn)(Param1 p1);
|
||
typedef Internal::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(Internal::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(Internal::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(Internal::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(Internal::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 Invoke(Param1 p1) const {
|
||
return (m_Closure.GetClosureThis()->*(m_Closure.GetClosureMemPtr()))(p1); }
|
||
inline RetType operator() (Param1 p1) const {
|
||
return Invoke(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 IsEmpty()? 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 IsEmpty() const {
|
||
return !m_Closure; }
|
||
void Clear() { m_Closure.Clear(); }
|
||
protected:
|
||
// Conversion to and from the DelegateMemento storage class
|
||
const Internal::DelegateMemento & GetMemento() { return m_Closure; }
|
||
void SetMemento(const Internal::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=Internal::DefaultVoid>
|
||
class FastDelegate2 {
|
||
private:
|
||
typedef typename Internal::DefaultVoidToVoid<RetType>::type DesiredRetType;
|
||
typedef DesiredRetType (*StaticFunctionPtr)(Param1 p1, Param2 p2);
|
||
typedef RetType (*UnvoidStaticFunctionPtr)(Param1 p1, Param2 p2);
|
||
typedef RetType (Internal::GenericClass::*GenericMemFn)(Param1 p1, Param2 p2);
|
||
typedef Internal::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(Internal::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(Internal::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(Internal::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(Internal::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 IsEmpty()? 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 IsEmpty() const {
|
||
return !m_Closure; }
|
||
void Clear() { m_Closure.Clear();}
|
||
protected:
|
||
// Conversion to and from the DelegateMemento storage class
|
||
const Internal::DelegateMemento & GetMemento() { return m_Closure; }
|
||
void SetMemento(const Internal::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=Internal::DefaultVoid>
|
||
class FastDelegate3 {
|
||
private:
|
||
typedef typename Internal::DefaultVoidToVoid<RetType>::type DesiredRetType;
|
||
typedef DesiredRetType (*StaticFunctionPtr)(Param1 p1, Param2 p2, Param3 p3);
|
||
typedef RetType (*UnvoidStaticFunctionPtr)(Param1 p1, Param2 p2, Param3 p3);
|
||
typedef RetType (Internal::GenericClass::*GenericMemFn)(Param1 p1, Param2 p2, Param3 p3);
|
||
typedef Internal::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(Internal::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(Internal::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(Internal::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(Internal::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 IsEmpty()? 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 IsEmpty() const {
|
||
return !m_Closure; }
|
||
void Clear() { m_Closure.Clear();}
|
||
protected:
|
||
// Conversion to and from the DelegateMemento storage class
|
||
const Internal::DelegateMemento & GetMemento() { return m_Closure; }
|
||
void SetMemento(const Internal::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=Internal::DefaultVoid>
|
||
class FastDelegate4 {
|
||
private:
|
||
typedef typename Internal::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 (Internal::GenericClass::*GenericMemFn)(Param1 p1, Param2 p2, Param3 p3, Param4 p4);
|
||
typedef Internal::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(Internal::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(Internal::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(Internal::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(Internal::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 IsEmpty()? 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 IsEmpty() const {
|
||
return !m_Closure; }
|
||
void Clear() { m_Closure.Clear();}
|
||
protected:
|
||
// Conversion to and from the DelegateMemento storage class
|
||
const Internal::DelegateMemento & GetMemento() { return m_Closure; }
|
||
void SetMemento(const Internal::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=Internal::DefaultVoid>
|
||
class FastDelegate5 {
|
||
private:
|
||
typedef typename Internal::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 (Internal::GenericClass::*GenericMemFn)(Param1 p1, Param2 p2, Param3 p3, Param4 p4, Param5 p5);
|
||
typedef Internal::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(Internal::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(Internal::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(Internal::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(Internal::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 IsEmpty()? 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 IsEmpty() const {
|
||
return !m_Closure; }
|
||
void Clear() { m_Closure.Clear();}
|
||
protected:
|
||
// Conversion to and from the DelegateMemento storage class
|
||
const Internal::DelegateMemento & GetMemento() { return m_Closure; }
|
||
void SetMemento(const Internal::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=Internal::DefaultVoid>
|
||
class FastDelegate6 {
|
||
private:
|
||
typedef typename Internal::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 (Internal::GenericClass::*GenericMemFn)(Param1 p1, Param2 p2, Param3 p3, Param4 p4, Param5 p5, Param6 p6);
|
||
typedef Internal::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(Internal::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(Internal::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(Internal::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(Internal::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 IsEmpty()? 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 IsEmpty() const {
|
||
return !m_Closure; }
|
||
void Clear() { m_Closure.Clear();}
|
||
protected:
|
||
// Conversion to and from the DelegateMemento storage class
|
||
const Internal::DelegateMemento & GetMemento() { return m_Closure; }
|
||
void SetMemento(const Internal::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=Internal::DefaultVoid>
|
||
class FastDelegate7 {
|
||
private:
|
||
typedef typename Internal::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 (Internal::GenericClass::*GenericMemFn)(Param1 p1, Param2 p2, Param3 p3, Param4 p4, Param5 p5, Param6 p6, Param7 p7);
|
||
typedef Internal::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(Internal::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(Internal::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(Internal::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(Internal::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 IsEmpty()? 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 IsEmpty() const {
|
||
return !m_Closure; }
|
||
void Clear() { m_Closure.Clear();}
|
||
protected:
|
||
// Conversion to and from the DelegateMemento storage class
|
||
const Internal::DelegateMemento & GetMemento() { return m_Closure; }
|
||
void SetMemento(const Internal::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=Internal::DefaultVoid>
|
||
class FastDelegate8 {
|
||
private:
|
||
typedef typename Internal::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 (Internal::GenericClass::*GenericMemFn)(Param1 p1, Param2 p2, Param3 p3, Param4 p4, Param5 p5, Param6 p6, Param7 p7, Param8 p8);
|
||
typedef Internal::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(Internal::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(Internal::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(Internal::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(Internal::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 IsEmpty()? 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 IsEmpty() const {
|
||
return !m_Closure; }
|
||
void Clear() { m_Closure.Clear();}
|
||
protected:
|
||
// Conversion to and from the DelegateMemento storage class
|
||
const Internal::DelegateMemento & GetMemento() { return m_Closure; }
|
||
void SetMemento(const Internal::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); }
|
||
};
|
||
|
||
/*
|
||
... part 4, part 5 ERASED ...
|
||
|
||
And now on only AVR-specific code with GPL license
|
||
|
||
Lauri Kirikal
|
||
*/
|
||
|
||
/**********************************************************************************************************************\
|
||
|
||
C++ library for Atmel AVR microcontrollers
|
||
Copyright (C) 2007 Lauri Kirikal, Mikk Leini, MT<4D> TT<54> Robotiklubi
|
||
|
||
This program is free software; you can redistribute it and/or
|
||
modify it under the terms of the GNU General Public License
|
||
as published by the Free Software Foundation; either version 2
|
||
of the License, or (at your option) any later version.
|
||
|
||
This program is distributed in the hope that it will be useful,
|
||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
GNU General Public License for more details.
|
||
|
||
You should have received a copy of the GNU General Public License
|
||
along with this program; if not, write to the Free Software
|
||
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
||
|
||
See http://creativecommons.org/licenses/GPL/2.0/
|
||
|
||
MT<4D> TT<54> Robotiklubi http://www.robotiklubi.ee robotiklubi@gmail.com
|
||
Lauri Kirikal laurikirikal@gmail.com
|
||
Mikk Leini mikk.leini@gmail.com
|
||
|
||
\**********************************************************************************************************************/
|
||
|
||
#ifndef EXCLUDE_FAST_DELEGATE
|
||
typedef FastDelegate0<void> FastDelegate;
|
||
#endif
|
||
|
||
#if !defined(EXCLUDE_DATA_DELEGATE) || !defined(EXCLUDE_MULTI_DELEGATE)
|
||
|
||
namespace Internal
|
||
{
|
||
template <class Delegate, class FastDelegate> bool AddFastDelegate(Delegate &delegate, FastDelegate &addable)
|
||
{
|
||
|
||
if (!delegate.me)
|
||
{
|
||
delegate.me = addable;
|
||
}
|
||
else
|
||
{
|
||
if (delegate.next == NULL)
|
||
{
|
||
delegate.next = new Delegate(addable);
|
||
if (delegate.next == NULL) return false;
|
||
}
|
||
else
|
||
{
|
||
return delegate.next->Add(addable);
|
||
}
|
||
}
|
||
|
||
return true;
|
||
|
||
} // AddFastDelegate
|
||
|
||
template <class Delegate, typename Function> bool AddFunction(Delegate &delegate, Function function)
|
||
{
|
||
if (!delegate.me)
|
||
{
|
||
delegate.me.Bind(function);
|
||
}
|
||
else
|
||
{
|
||
if (delegate.next == NULL)
|
||
{
|
||
delegate.next = new Delegate(function);
|
||
if (delegate.next == NULL) return false;
|
||
}
|
||
else
|
||
{
|
||
return delegate.next->Add(function);
|
||
}
|
||
}
|
||
|
||
return true;
|
||
|
||
} // AddFunction
|
||
|
||
template <class Delegate, class Object, typename MemberFunction>
|
||
bool AddMemberFunction(Delegate &delegate, Object *object, MemberFunction function)
|
||
{
|
||
if (!delegate.me)
|
||
{
|
||
delegate.me.Bind(object, function);
|
||
}
|
||
else
|
||
{
|
||
if (delegate.next == NULL)
|
||
{
|
||
delegate.next = new Delegate(object, function);
|
||
if (delegate.next == NULL) return false;
|
||
}
|
||
else
|
||
{
|
||
return delegate.next->Add(object, function);
|
||
}
|
||
}
|
||
|
||
return true;
|
||
|
||
} // AddMemberFunction
|
||
|
||
template <class Delegate, class FastDelegate> bool RemoveAll(Delegate &delegate, FastDelegate &removable)
|
||
{
|
||
if (removable == delegate.me)
|
||
{
|
||
if (delegate.next == NULL)
|
||
{
|
||
delegate.me.Clear();
|
||
}
|
||
else
|
||
{
|
||
Delegate *cutOut, *cutOutNext = delegate.next;
|
||
|
||
while (cutOutNext->me == removable)
|
||
{
|
||
cutOut = cutOutNext;
|
||
cutOutNext = cutOut->next;
|
||
|
||
delete cutOut;
|
||
|
||
if (cutOutNext == NULL)
|
||
{
|
||
delegate.next = NULL;
|
||
delegate.me.Clear();
|
||
return true;
|
||
}
|
||
}
|
||
|
||
delegate.me = cutOutNext->me;
|
||
delegate.next = cutOutNext->next;
|
||
|
||
delete cutOutNext;
|
||
|
||
if (delegate.next != NULL)
|
||
delegate.next->RemoveAll(removable);
|
||
|
||
}
|
||
}
|
||
else
|
||
{
|
||
if (delegate.next == NULL)
|
||
return false;
|
||
else
|
||
return delegate.next->RemoveAll(removable);
|
||
}
|
||
|
||
return true;
|
||
|
||
} // RemoveAll
|
||
|
||
template <class Delegate, class FastDelegate> bool Remove(Delegate &delegate, FastDelegate &removable)
|
||
{
|
||
if (removable == delegate.me)
|
||
{
|
||
if (delegate.next == NULL)
|
||
{
|
||
delegate.me.Clear();
|
||
}
|
||
else
|
||
{
|
||
Delegate *cutOut = delegate.next;
|
||
|
||
delegate.me = cutOut->me;
|
||
delegate.next = cutOut->next;
|
||
|
||
delete cutOut;
|
||
}
|
||
}
|
||
else
|
||
{
|
||
if (delegate.next == NULL)
|
||
return false;
|
||
else
|
||
return delegate.next->Remove(removable);
|
||
}
|
||
|
||
return true;
|
||
|
||
} // Remove
|
||
|
||
template <class Delegate> void Clear(Delegate &delegate)
|
||
{
|
||
if (delegate.next != NULL)
|
||
{
|
||
delegate.next->Clear();
|
||
delete delegate.next;
|
||
delegate.next = NULL;
|
||
}
|
||
delegate.me.Clear();
|
||
|
||
} // Clear
|
||
|
||
} // namespace Internal
|
||
|
||
#endif // if !defined(EXCLUDE_DATA_DELEGATE) || !defined(EXCLUDE_MULTI_DELEGATE)
|
||
|
||
#ifndef EXCLUDE_DATA_DELEGATE
|
||
|
||
template<class Derived> class DelegateController;
|
||
|
||
template <class Controller> class DataDelegate
|
||
{
|
||
public:
|
||
|
||
typedef void (*Function)(Controller &);
|
||
typedef FastDelegate1<Controller &> FastDelegate;
|
||
|
||
private:
|
||
|
||
friend class DelegateController<Controller>;
|
||
template <class Delegate, class FastDelegate> friend bool Internal::AddFastDelegate(Delegate &delegate, FastDelegate &addable);
|
||
template <class Delegate, typename Function> friend bool Internal::AddFunction(Delegate &delegate, Function function);
|
||
template <class Delegate, class Object, typename MemberFunction> friend bool Internal::AddMemberFunction(Delegate &delegate, Object *object, MemberFunction function);
|
||
template <class Delegate, class FastDelegate> friend bool Internal::RemoveAll(Delegate &delegate, FastDelegate &removable);
|
||
template <class Delegate, class FastDelegate> friend bool Internal::Remove(Delegate &delegate, FastDelegate &removable);
|
||
template <class Delegate> friend void Internal::Clear(Delegate &delegate);
|
||
|
||
DataDelegate<Controller> * next;
|
||
FastDelegate me;
|
||
|
||
DataDelegate() : next(NULL), me() {}
|
||
DataDelegate(Function function) : next(NULL), me(function) {}
|
||
DataDelegate(const FastDelegate &_me) : next(NULL), me(_me) {}
|
||
template <class X, class Y> DataDelegate(X *object, void (Y::* function)(Controller &) ) : next(NULL), me(object, function) {}
|
||
template <class X, class Y> DataDelegate(const X *object, void (Y::* function)(Controller &) const) : next(NULL), me(object, function) {}
|
||
|
||
void Invoke(Controller &controller) const
|
||
{
|
||
if (!me.IsEmpty() )
|
||
{
|
||
me(controller);
|
||
if (next != NULL) next->Invoke(controller);
|
||
}
|
||
|
||
} // OPERATOR ()
|
||
|
||
inline void operator() (Controller &controller) const { Invoke(controller); }
|
||
|
||
public:
|
||
|
||
inline bool Add(FastDelegate &addable)
|
||
{
|
||
return Internal::AddFastDelegate<DataDelegate<Controller>, FastDelegate>(*this, addable);
|
||
|
||
} // Add 1
|
||
|
||
inline bool Add(Function function)
|
||
{
|
||
return Internal::AddFunction<DataDelegate<Controller>, Function>(*this, function);
|
||
|
||
} // Add 2
|
||
|
||
template <class X, class Y> inline bool Add(X *object, void (Y::* function)(Controller &) )
|
||
{
|
||
return Internal::AddMemberFunction<DataDelegate<Controller>, X, void (Y::*)(Controller &)>(*this, object, function);
|
||
|
||
} // Add 3
|
||
|
||
template <class X, class Y> inline bool Add(const X *object, void (Y::* function)(Controller &) const)
|
||
{
|
||
return Internal::AddMemberFunction<DataDelegate<Controller>, const X, void (Y::*)(Controller &) const>(*this, object, function);
|
||
|
||
} // Add 4
|
||
|
||
inline bool RemoveAll(FastDelegate &removable)
|
||
{
|
||
return Internal::RemoveAll<DataDelegate<Controller>, Function>(*this, removable);
|
||
|
||
} // RemoveAll 1
|
||
|
||
inline bool RemoveAll(Function function)
|
||
{
|
||
FastDelegate removable(function);
|
||
|
||
return RemoveAll(removable);
|
||
|
||
} // RemoveAll 2
|
||
|
||
template <class X, class Y> inline bool RemoveAll(X *object, void (Y::* function)(Controller &) )
|
||
{
|
||
FastDelegate removable(object, function);
|
||
|
||
return RemoveAll(removable);
|
||
|
||
} // RemoveAll 3
|
||
|
||
template <class X, class Y> inline bool RemoveAll(const X *object, void (Y::* function)(Controller &) const)
|
||
{
|
||
FastDelegate removable(object, function);
|
||
|
||
return RemoveAll(removable);
|
||
|
||
} // RemoveAll 4
|
||
|
||
inline bool Remove(FastDelegate &removable)
|
||
{
|
||
return Internal::Remove<DataDelegate<Controller>, FastDelegate>(*this, removable);
|
||
|
||
} // Remove 1
|
||
|
||
inline bool Remove(Function function)
|
||
{
|
||
FastDelegate removable(function);
|
||
|
||
return Remove(removable);
|
||
|
||
} // Remove 2
|
||
|
||
template <class X, class Y> inline bool Remove(X *object, void (Y::* function)(Controller &) )
|
||
{
|
||
FastDelegate removable(object, function);
|
||
|
||
return Remove(removable);
|
||
|
||
} // Remove 3
|
||
|
||
template <class X, class Y> inline bool Remove(const X *object, void (Y::* function)(Controller &) const)
|
||
{
|
||
FastDelegate removable(object, function);
|
||
|
||
return Remove(removable);
|
||
|
||
} // Remove 4
|
||
|
||
inline void Clear() { Internal::Clear<DataDelegate<Controller> >(*this); }
|
||
inline bool IsEmpty() { return !me; }
|
||
inline bool operator ! () { return IsEmpty(); }
|
||
inline bool operator += (Function function) { return Add(function); }
|
||
inline bool operator += (FastDelegate &addable) { return Add(addable); }
|
||
inline bool operator -= (Function function) { return Remove(function); }
|
||
inline bool operator -= (FastDelegate &removable) { return Remove(removable); }
|
||
|
||
~DataDelegate() { Clear(); }
|
||
|
||
}; // class DataDelegate
|
||
|
||
|
||
template <class Derived> class DelegateController
|
||
{
|
||
protected:
|
||
|
||
virtual bool Before() = 0;
|
||
virtual void After() {};
|
||
|
||
private:
|
||
|
||
DataDelegate<Derived> dataDelegate;
|
||
|
||
public:
|
||
|
||
DelegateController() : dataDelegate() {}
|
||
DataDelegate<Derived> &Delegate() { return dataDelegate; }
|
||
|
||
void Invoke()
|
||
{
|
||
if (Before() )
|
||
{
|
||
dataDelegate(*((Derived *)this));
|
||
After();
|
||
}
|
||
|
||
} // operator ()
|
||
|
||
inline void operator() () { Invoke(); }
|
||
virtual ~DelegateController() {}
|
||
|
||
}; // class DelegateController
|
||
|
||
#endif // ifndef EXCLUDE_DATA_DELEGATE
|
||
|
||
#ifndef EXCLUDE_MULTI_DELEGATE
|
||
|
||
class MultiDelegate
|
||
{
|
||
public:
|
||
|
||
typedef void (*Function)(void);
|
||
typedef FastDelegate0<> FastDelegate;
|
||
|
||
private:
|
||
|
||
MultiDelegate * next;
|
||
FastDelegate me;
|
||
|
||
template <class Delegate, class FastDelegate> friend bool Internal::AddFastDelegate(Delegate &delegate, FastDelegate &addable);
|
||
template <class Delegate, typename Function> friend bool Internal::AddFunction(Delegate &delegate, Function function);
|
||
template <class Delegate, class Object, typename MemberFunction> friend bool Internal::AddMemberFunction(Delegate &delegate, Object *object, MemberFunction function);
|
||
template <class Delegate, class FastDelegate> friend bool Internal::RemoveAll(Delegate &delegate, FastDelegate &removable);
|
||
template <class Delegate, class FastDelegate> friend bool Internal::Remove(Delegate &delegate, FastDelegate &removable);
|
||
template <class Delegate> friend void Internal::Clear(Delegate &delegate);
|
||
|
||
public:
|
||
|
||
MultiDelegate() : next(NULL), me() {}
|
||
MultiDelegate(Function function) : next(NULL), me(function) {}
|
||
MultiDelegate(const FastDelegate &_me) : next(NULL), me(_me) {}
|
||
template <class X, class Y> MultiDelegate(X *object, void (Y::* function)() ) : next(NULL), me(object, function) {}
|
||
template <class X, class Y> MultiDelegate(const X *object, void (Y::* function)() const) : next(NULL), me(object, function) {}
|
||
|
||
void Invoke() const
|
||
{
|
||
if (!me.IsEmpty() )
|
||
{
|
||
me();
|
||
if (next != NULL) next->Invoke();
|
||
}
|
||
|
||
} // OPERATOR ()
|
||
|
||
inline bool Add(FastDelegate &addable)
|
||
{
|
||
return Internal::AddFastDelegate<MultiDelegate, FastDelegate>(*this, addable);
|
||
|
||
} // Add 1
|
||
|
||
inline bool Add(Function function)
|
||
{
|
||
return Internal::AddFunction<MultiDelegate, Function>(*this, function);
|
||
|
||
} // Add 2
|
||
|
||
template <class X, class Y> inline bool Add(X *object, void (Y::* function)() )
|
||
{
|
||
return Internal::AddMemberFunction<MultiDelegate, X, void (Y::*)()>(*this, object, function);
|
||
|
||
} // Add 3
|
||
|
||
template <class X, class Y> inline bool Add(const X *object, void (Y::* function)() const)
|
||
{
|
||
return Internal::AddMemberFunction<MultiDelegate, const X, void (Y::*)() const>(*this, object, function);
|
||
|
||
} // Add 4
|
||
|
||
inline bool RemoveAll(FastDelegate &removable)
|
||
{
|
||
return Internal::RemoveAll<MultiDelegate, FastDelegate>(*this, removable);
|
||
|
||
} // RemoveAll 1
|
||
|
||
inline bool RemoveAll(Function function)
|
||
{
|
||
FastDelegate removable(function);
|
||
|
||
return RemoveAll(removable);
|
||
|
||
} // RemoveAll 2
|
||
|
||
template <class X, class Y> inline bool RemoveAll(X *object, void (Y::* function)() )
|
||
{
|
||
FastDelegate removable(object, function);
|
||
|
||
return RemoveAll(removable);
|
||
|
||
} // RemoveAll 3
|
||
|
||
template <class X, class Y> inline bool RemoveAll(const X *object, void (Y::* function)() const)
|
||
{
|
||
return RemoveAll<X, Y>(object, (void (Y::*)(void))function);
|
||
|
||
} // RemoveAll 4
|
||
|
||
inline bool Remove(FastDelegate &removable)
|
||
{
|
||
return Internal::Remove<MultiDelegate, FastDelegate>(*this, removable);
|
||
|
||
} // Remove 1
|
||
|
||
inline bool Remove(Function function)
|
||
{
|
||
FastDelegate removable(function);
|
||
|
||
return Remove(removable);
|
||
|
||
} // Remove 2
|
||
|
||
template <class X, class Y> inline bool Remove(X *object, void (Y::* function)() )
|
||
{
|
||
FastDelegate removable(object, function);
|
||
|
||
return Remove(removable);
|
||
|
||
} // Remove 3
|
||
|
||
template <class X, class Y> inline bool Remove(const X *object, void (Y::* function)() const)
|
||
{
|
||
return Remove(object, (void (Y::*)(void))function);
|
||
|
||
} // Remove 4
|
||
|
||
inline void Clear() { Internal::Clear<MultiDelegate>(*this); }
|
||
inline bool IsEmpty() const { return !me; }
|
||
inline void operator() () const { Invoke(); }
|
||
inline bool operator ! () const { return IsEmpty(); }
|
||
inline bool operator += (Function function) { return Add(function); }
|
||
inline bool operator += (FastDelegate &addable) { return Add(addable); }
|
||
inline bool operator -= (Function function) { return Remove(function); }
|
||
inline bool operator -= (FastDelegate &removable) { return Remove(removable); }
|
||
~MultiDelegate() { Clear(); }
|
||
|
||
}; // class MultiDelegate
|
||
|
||
#endif // ifndef EXCLUDE_MULTI_DELEGATE
|
||
|
||
// clean up after ourselves...
|
||
#undef FASTDLGT_RETTYPE
|
||
|
||
} // namespace CppDelegate
|
||
|
||
#endif // ifdef __cplusplus
|
||
#endif // if !(defined(EXCLUDE_FAST_DELEGATE) && defined(EXCLUDE_MULTI_DELEGATE) && defined(EXLUDE_DATA_DELEGATE))
|
||
#endif // ifndef __AVR_CPP_DELEGATE_H__
|
||
|