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SqMod/include/sqrat/sqratAllocator.h
Sandu Liviu Catalin f300e7ff4a Massive code reduction in the binding utility by using variadic templates. 
Extensive code refactoring surrounding the StackStrF helper to facilitate the new changes.
Various other miscellaneous changes and code refactoring to facilitate the new changes.
2018-07-30 00:58:27 +03:00

1558 lines
50 KiB
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//
// SqratAllocator: Custom Class Allocation/Deallocation
//
//
// Copyright (c) 2009 Brandon Jones
//
// This software is provided 'as-is', without any express or implied
// warranty. In no event will the authors be held liable for any damages
// arising from the use of this software.
//
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it
// freely, subject to the following restrictions:
//
// 1. The origin of this software must not be misrepresented; you must not
// claim that you wrote the original software. If you use this software
// in a product, an acknowledgment in the product documentation would be
// appreciated but is not required.
//
// 2. Altered source versions must be plainly marked as such, and must not be
// misrepresented as being the original software.
//
// 3. This notice may not be removed or altered from any source
// distribution.
//
#if !defined(_SCRAT_ALLOCATOR_H_)
#define _SCRAT_ALLOCATOR_H_
#ifdef SQMOD_PLUGIN_API
#include <SqAPI.h>
#else
#include <squirrel.h>
#endif // SQMOD_PLUGIN_API
#include <string.h>
#include "sqratObject.h"
#include "sqratTypes.h"
namespace Sqrat {
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
/// @cond DEV
/// utility taken from http://stackoverflow.com/questions/2733377/is-there-a-way-to-test-whether-a-c-class-has-a-default-constructor-other-than/2770326#2770326
/// may be obsolete in C++ 11
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
template< class T >
class is_default_constructible {
template<int x>
class receive_size{};
template< class U >
static int sfinae( receive_size< sizeof U() > * );
template< class U >
static char sfinae( ... );
public:
enum { value = sizeof( sfinae<T>(0) ) == sizeof(int) };
};
/// @endcond
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
/// DefaultAllocator is the allocator to use for Class that can both be constructed and copied
///
/// \tparam C Type of class
///
/// \remarks
/// There is mechanisms defined in this class that allow the Class::Ctor method to work properly (e.g. iNew).
///
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
template<class C>
class DefaultAllocator {
template <class T, bool b>
struct NewC
{
T* p;
NewC()
{
p = new T();
}
};
template <class T>
struct NewC<T, false>
{
T* p;
NewC()
{
p = 0;
}
};
public:
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
/// Associates a newly created instance with an object allocated with the new operator (which is automatically deleted)
///
/// \param vm VM that has an instance object of the correct type at idx
/// \param idx Index of the stack that the instance object is at
/// \param ptr Should be the return value from a call to the new operator
///
/// \remarks
/// This function should only need to be used when custom constructors are bound with Class::SquirrelFunc.
///
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
static void SetInstance(HSQUIRRELVM vm, SQInteger idx, C* ptr)
{
ClassData<C>* cd = ClassType<C>::getClassData(vm);
sq_setinstanceup(vm, idx, new std::pair<C*, SharedPtr<typename unordered_map<C*, HSQOBJECT>::type> >(ptr, cd->instances));
sq_setreleasehook(vm, idx, &Delete);
sq_getstackobj(vm, idx, &((*cd->instances)[ptr]));
}
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
/// Called by Sqrat to set up an instance on the stack for the template class
///
/// \param vm VM that has an instance object of the correct type at position 1 in its stack
///
/// \return Squirrel error code
///
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
static SQInteger New(HSQUIRRELVM vm) {
SetInstance(vm, 1, NewC<C, is_default_constructible<C>::value >().p);
return 0;
}
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
/// @cond DEV
/// following iNew functions are used only if constructors are bound via Ctor() in Sqrat::Class (safe to ignore)
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
static SQInteger iNew(HSQUIRRELVM vm) {
return New(vm);
}
template <typename A1>
static SQInteger iNew(HSQUIRRELVM vm) {
SQTRY()
Var<A1> a1(vm, 2);
SQCATCH_NOEXCEPT(vm) {
return sq_throwerror(vm, SQWHAT_NOEXCEPT(vm));
}
SetInstance(vm, 1, new C(
a1.value
));
SQCATCH(vm) {
return sq_throwerror(vm, SQWHAT(vm));
}
return 0;
}
template <typename A1,typename A2>
static SQInteger iNew(HSQUIRRELVM vm) {
SQTRY()
Var<A1> a1(vm, 2);
Var<A2> a2(vm, 3);
SQCATCH_NOEXCEPT(vm) {
return sq_throwerror(vm, SQWHAT_NOEXCEPT(vm));
}
SetInstance(vm, 1, new C(
a1.value,
a2.value
));
SQCATCH(vm) {
return sq_throwerror(vm, SQWHAT(vm));
}
return 0;
}
template <typename A1,typename A2,typename A3>
static SQInteger iNew(HSQUIRRELVM vm) {
SQTRY()
Var<A1> a1(vm, 2);
Var<A2> a2(vm, 3);
Var<A3> a3(vm, 4);
SQCATCH_NOEXCEPT(vm) {
return sq_throwerror(vm, SQWHAT_NOEXCEPT(vm));
}
SetInstance(vm, 1, new C(
a1.value,
a2.value,
a3.value
));
SQCATCH(vm) {
return sq_throwerror(vm, SQWHAT(vm));
}
return 0;
}
template <typename A1,typename A2,typename A3,typename A4>
static SQInteger iNew(HSQUIRRELVM vm) {
SQTRY()
Var<A1> a1(vm, 2);
Var<A2> a2(vm, 3);
Var<A3> a3(vm, 4);
Var<A4> a4(vm, 5);
SQCATCH_NOEXCEPT(vm) {
return sq_throwerror(vm, SQWHAT_NOEXCEPT(vm));
}
SetInstance(vm, 1, new C(
a1.value,
a2.value,
a3.value,
a4.value
));
SQCATCH(vm) {
return sq_throwerror(vm, SQWHAT(vm));
}
return 0;
}
template <typename A1,typename A2,typename A3,typename A4,typename A5>
static SQInteger iNew(HSQUIRRELVM vm) {
SQTRY()
Var<A1> a1(vm, 2);
Var<A2> a2(vm, 3);
Var<A3> a3(vm, 4);
Var<A4> a4(vm, 5);
Var<A5> a5(vm, 6);
SQCATCH_NOEXCEPT(vm) {
return sq_throwerror(vm, SQWHAT_NOEXCEPT(vm));
}
SetInstance(vm, 1, new C(
a1.value,
a2.value,
a3.value,
a4.value,
a5.value
));
SQCATCH(vm) {
return sq_throwerror(vm, SQWHAT(vm));
}
return 0;
}
template <typename A1,typename A2,typename A3,typename A4,typename A5,typename A6>
static SQInteger iNew(HSQUIRRELVM vm) {
SQTRY()
Var<A1> a1(vm, 2);
Var<A2> a2(vm, 3);
Var<A3> a3(vm, 4);
Var<A4> a4(vm, 5);
Var<A5> a5(vm, 6);
Var<A6> a6(vm, 7);
SQCATCH_NOEXCEPT(vm) {
return sq_throwerror(vm, SQWHAT_NOEXCEPT(vm));
}
SetInstance(vm, 1, new C(
a1.value,
a2.value,
a3.value,
a4.value,
a5.value,
a6.value
));
SQCATCH(vm) {
return sq_throwerror(vm, SQWHAT(vm));
}
return 0;
}
template <typename A1,typename A2,typename A3,typename A4,typename A5,typename A6,typename A7>
static SQInteger iNew(HSQUIRRELVM vm) {
SQTRY()
Var<A1> a1(vm, 2);
Var<A2> a2(vm, 3);
Var<A3> a3(vm, 4);
Var<A4> a4(vm, 5);
Var<A5> a5(vm, 6);
Var<A6> a6(vm, 7);
Var<A7> a7(vm, 8);
SQCATCH_NOEXCEPT(vm) {
return sq_throwerror(vm, SQWHAT_NOEXCEPT(vm));
}
SetInstance(vm, 1, new C(
a1.value,
a2.value,
a3.value,
a4.value,
a5.value,
a6.value,
a7.value
));
SQCATCH(vm) {
return sq_throwerror(vm, SQWHAT(vm));
}
return 0;
}
template <typename A1,typename A2,typename A3,typename A4,typename A5,typename A6,typename A7,typename A8>
static SQInteger iNew(HSQUIRRELVM vm) {
SQTRY()
Var<A1> a1(vm, 2);
Var<A2> a2(vm, 3);
Var<A3> a3(vm, 4);
Var<A4> a4(vm, 5);
Var<A5> a5(vm, 6);
Var<A6> a6(vm, 7);
Var<A7> a7(vm, 8);
Var<A8> a8(vm, 9);
SQCATCH_NOEXCEPT(vm) {
return sq_throwerror(vm, SQWHAT_NOEXCEPT(vm));
}
SetInstance(vm, 1, new C(
a1.value,
a2.value,
a3.value,
a4.value,
a5.value,
a6.value,
a7.value,
a8.value
));
SQCATCH(vm) {
return sq_throwerror(vm, SQWHAT(vm));
}
return 0;
}
template <typename A1,typename A2,typename A3,typename A4,typename A5,typename A6,typename A7,typename A8,typename A9>
static SQInteger iNew(HSQUIRRELVM vm) {
SQTRY()
Var<A1> a1(vm, 2);
Var<A2> a2(vm, 3);
Var<A3> a3(vm, 4);
Var<A4> a4(vm, 5);
Var<A5> a5(vm, 6);
Var<A6> a6(vm, 7);
Var<A7> a7(vm, 8);
Var<A8> a8(vm, 9);
Var<A9> a9(vm, 10);
SQCATCH_NOEXCEPT(vm) {
return sq_throwerror(vm, SQWHAT_NOEXCEPT(vm));
}
SetInstance(vm, 1, new C(
a1.value,
a2.value,
a3.value,
a4.value,
a5.value,
a6.value,
a7.value,
a8.value,
a9.value
));
SQCATCH(vm) {
return sq_throwerror(vm, SQWHAT(vm));
}
return 0;
}
/// @endcond
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
/// @cond DEV
/// following iNew functions are used only if constructors are bound via FmtCtor() in Sqrat::Class (safe to ignore)
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
static SQInteger iFmtNew(HSQUIRRELVM vm) {
SQTRY()
StackStrF fmt(vm, 2);
// Validate the format
if (SQ_FAILED(fmt.Proc(true))) {
return fmt.mRes;
}
SetInstance(vm, 1, new C(
fmt
));
SQCATCH(vm) {
return sq_throwerror(vm, SQWHAT(vm));
}
return 0;
}
template <typename A1>
static SQInteger iFmtNew(HSQUIRRELVM vm) {
SQTRY()
Var<A1> a1(vm, 2);
SQCATCH_NOEXCEPT(vm) {
return sq_throwerror(vm, SQWHAT_NOEXCEPT(vm));
}
StackStrF fmt(vm, 3);
// Validate the format
if (SQ_FAILED(fmt.Proc(true))) {
return fmt.mRes;
}
SetInstance(vm, 1, new C(
a1.value,
fmt
));
SQCATCH(vm) {
return sq_throwerror(vm, SQWHAT(vm));
}
return 0;
}
template <typename A1,typename A2>
static SQInteger iFmtNew(HSQUIRRELVM vm) {
SQTRY()
Var<A1> a1(vm, 2);
Var<A2> a2(vm, 3);
SQCATCH_NOEXCEPT(vm) {
return sq_throwerror(vm, SQWHAT_NOEXCEPT(vm));
}
const StackStrF fmt(vm, 4, true);
// Validate the format
if (SQ_FAILED(fmt.mRes)) {
return fmt.mRes;
}
SetInstance(vm, 1, new C(
a1.value,
a2.value,
fmt
));
SQCATCH(vm) {
return sq_throwerror(vm, SQWHAT(vm));
}
return 0;
}
template <typename A1,typename A2,typename A3>
static SQInteger iFmtNew(HSQUIRRELVM vm) {
SQTRY()
Var<A1> a1(vm, 2);
Var<A2> a2(vm, 3);
Var<A3> a3(vm, 4);
SQCATCH_NOEXCEPT(vm) {
return sq_throwerror(vm, SQWHAT_NOEXCEPT(vm));
}
StackStrF fmt(vm, 5);
// Validate the format
if (SQ_FAILED(fmt.Proc(true))) {
return fmt.mRes;
}
SetInstance(vm, 1, new C(
a1.value,
a2.value,
a3.value,
fmt
));
SQCATCH(vm) {
return sq_throwerror(vm, SQWHAT(vm));
}
return 0;
}
template <typename A1,typename A2,typename A3,typename A4>
static SQInteger iFmtNew(HSQUIRRELVM vm) {
SQTRY()
Var<A1> a1(vm, 2);
Var<A2> a2(vm, 3);
Var<A3> a3(vm, 4);
Var<A4> a4(vm, 5);
SQCATCH_NOEXCEPT(vm) {
return sq_throwerror(vm, SQWHAT_NOEXCEPT(vm));
}
StackStrF fmt(vm, 6);
// Validate the format
if (SQ_FAILED(fmt.Proc(true))) {
return fmt.mRes;
}
SetInstance(vm, 1, new C(
a1.value,
a2.value,
a3.value,
a4.value,
fmt
));
SQCATCH(vm) {
return sq_throwerror(vm, SQWHAT(vm));
}
return 0;
}
template <typename A1,typename A2,typename A3,typename A4,typename A5>
static SQInteger iFmtNew(HSQUIRRELVM vm) {
SQTRY()
Var<A1> a1(vm, 2);
Var<A2> a2(vm, 3);
Var<A3> a3(vm, 4);
Var<A4> a4(vm, 5);
Var<A5> a5(vm, 6);
SQCATCH_NOEXCEPT(vm) {
return sq_throwerror(vm, SQWHAT_NOEXCEPT(vm));
}
const StackStrF fmt(vm, 7, true);
// Validate the format
if (SQ_FAILED(fmt.mRes)) {
return fmt.mRes;
}
SetInstance(vm, 1, new C(
a1.value,
a2.value,
a3.value,
a4.value,
a5.value,
fmt
));
SQCATCH(vm) {
return sq_throwerror(vm, SQWHAT(vm));
}
return 0;
}
template <typename A1,typename A2,typename A3,typename A4,typename A5,typename A6>
static SQInteger iFmtNew(HSQUIRRELVM vm) {
SQTRY()
Var<A1> a1(vm, 2);
Var<A2> a2(vm, 3);
Var<A3> a3(vm, 4);
Var<A4> a4(vm, 5);
Var<A5> a5(vm, 6);
Var<A6> a6(vm, 7);
SQCATCH_NOEXCEPT(vm) {
return sq_throwerror(vm, SQWHAT_NOEXCEPT(vm));
}
StackStrF fmt(vm, 8);
// Validate the format
if (SQ_FAILED(fmt.Proc(true))) {
return fmt.mRes;
}
SetInstance(vm, 1, new C(
a1.value,
a2.value,
a3.value,
a4.value,
a5.value,
a6.value,
fmt
));
SQCATCH(vm) {
return sq_throwerror(vm, SQWHAT(vm));
}
return 0;
}
template <typename A1,typename A2,typename A3,typename A4,typename A5,typename A6,typename A7>
static SQInteger iFmtNew(HSQUIRRELVM vm) {
SQTRY()
Var<A1> a1(vm, 2);
Var<A2> a2(vm, 3);
Var<A3> a3(vm, 4);
Var<A4> a4(vm, 5);
Var<A5> a5(vm, 6);
Var<A6> a6(vm, 7);
Var<A7> a7(vm, 8);
SQCATCH_NOEXCEPT(vm) {
return sq_throwerror(vm, SQWHAT_NOEXCEPT(vm));
}
StackStrF fmt(vm, 9);
// Validate the format
if (SQ_FAILED(fmt.Proc(true))) {
return fmt.mRes;
}
SetInstance(vm, 1, new C(
a1.value,
a2.value,
a3.value,
a4.value,
a5.value,
a6.value,
a7.value,
fmt
));
SQCATCH(vm) {
return sq_throwerror(vm, SQWHAT(vm));
}
return 0;
}
template <typename A1,typename A2,typename A3,typename A4,typename A5,typename A6,typename A7,typename A8>
static SQInteger iFmtNew(HSQUIRRELVM vm) {
SQTRY()
Var<A1> a1(vm, 2);
Var<A2> a2(vm, 3);
Var<A3> a3(vm, 4);
Var<A4> a4(vm, 5);
Var<A5> a5(vm, 6);
Var<A6> a6(vm, 7);
Var<A7> a7(vm, 8);
Var<A8> a8(vm, 9);
SQCATCH_NOEXCEPT(vm) {
return sq_throwerror(vm, SQWHAT_NOEXCEPT(vm));
}
const StackStrF fmt(vm, 10, true);
// Validate the format
if (SQ_FAILED(fmt.mRes)) {
return fmt.mRes;
}
SetInstance(vm, 1, new C(
a1.value,
a2.value,
a3.value,
a4.value,
a5.value,
a6.value,
a7.value,
a8.value,
fmt
));
SQCATCH(vm) {
return sq_throwerror(vm, SQWHAT(vm));
}
return 0;
}
template <typename A1,typename A2,typename A3,typename A4,typename A5,typename A6,typename A7,typename A8,typename A9>
static SQInteger iFmtNew(HSQUIRRELVM vm) {
SQTRY()
Var<A1> a1(vm, 2);
Var<A2> a2(vm, 3);
Var<A3> a3(vm, 4);
Var<A4> a4(vm, 5);
Var<A5> a5(vm, 6);
Var<A6> a6(vm, 7);
Var<A7> a7(vm, 8);
Var<A8> a8(vm, 9);
Var<A9> a9(vm, 10);
SQCATCH_NOEXCEPT(vm) {
return sq_throwerror(vm, SQWHAT_NOEXCEPT(vm));
}
const StackStrF fmt(vm, 11, true);
// Validate the format
if (SQ_FAILED(fmt.mRes)) {
return fmt.mRes;
}
SetInstance(vm, 1, new C(
a1.value,
a2.value,
a3.value,
a4.value,
a5.value,
a6.value,
a7.value,
a8.value,
a9.value,
fmt
));
SQCATCH(vm) {
return sq_throwerror(vm, SQWHAT(vm));
}
return 0;
}
/// @endcond
public:
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
/// Called by Sqrat to set up the instance at idx on the stack as a copy of a value of the same type
///
/// \param vm VM that has an instance object of the correct type at idx
/// \param idx Index of the stack that the instance object is at
/// \param value A pointer to data of the same type as the instance object
///
/// \return Squirrel error code
///
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
static SQInteger Copy(HSQUIRRELVM vm, SQInteger idx, const void* value) {
SetInstance(vm, idx, new C(*static_cast<const C*>(value)));
return 0;
}
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
/// Called by Sqrat to delete an instance's data
///
/// \param ptr Pointer to the data contained by the instance
/// \param size Size of the data contained by the instance
///
/// \return Squirrel error code
///
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
static SQInteger Delete(SQUserPointer ptr, SQInteger size) {
SQUNUSED(size);
std::pair<C*, SharedPtr<typename unordered_map<C*, HSQOBJECT>::type> >* instance = reinterpret_cast<std::pair<C*, SharedPtr<typename unordered_map<C*, HSQOBJECT>::type> >*>(ptr);
instance->second->erase(instance->first);
delete instance->first;
delete instance;
return 0;
}
};
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
/// NoConstructor is the allocator to use for Class that can NOT be constructed or copied
///
/// \tparam C Type of class
///
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
template<class C>
class NoConstructor {
public:
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
/// Associates a newly created instance with an object allocated with the new operator (which is automatically deleted)
///
/// \param vm VM that has an instance object of the correct type at idx
/// \param idx Index of the stack that the instance object is at
/// \param ptr Should be the return value from a call to the new operator
///
/// \remarks
/// This function should only need to be used when custom constructors are bound with Class::SquirrelFunc.
///
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
static void SetInstance(HSQUIRRELVM vm, SQInteger idx, C* ptr)
{
ClassData<C>* cd = ClassType<C>::getClassData(vm);
sq_setinstanceup(vm, idx, new std::pair<C*, SharedPtr<typename unordered_map<C*, HSQOBJECT>::type> >(ptr, cd->instance));
sq_setreleasehook(vm, idx, &Delete);
sq_getstackobj(vm, idx, &((*cd->instances)[ptr]));
}
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
/// Called by Sqrat to set up an instance on the stack for the template class (not allowed in this allocator)
///
/// \param vm VM that has an instance object of the correct type at position 1 in its stack
///
/// \return Squirrel error code
///
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
static SQInteger New(HSQUIRRELVM vm) {
#if !defined (SCRAT_NO_ERROR_CHECKING)
return sq_throwerror(vm, (ClassType<C>::ClassName() + string(_SC(" constructing is not allowed"))).c_str());
#else
SQUNUSED(vm);
return 0;
#endif
}
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
/// Called by Sqrat to set up the instance at idx on the stack as a copy of a value of the same type (not used in this allocator)
///
/// \param vm VM that has an instance object of the correct type at idx
/// \param idx Index of the stack that the instance object is at
/// \param value A pointer to data of the same type as the instance object
///
/// \return Squirrel error code
///
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
static SQInteger Copy(HSQUIRRELVM vm, SQInteger idx, const void* value) {
SQUNUSED(vm);
SQUNUSED(idx);
SQUNUSED(value);
return sq_throwerror(vm, (ClassType<C>::ClassName() + string(_SC(" cloning is not allowed"))).c_str());
}
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
/// Called by Sqrat to delete an instance's data
///
/// \param ptr Pointer to the data contained by the instance
/// \param size Size of the data contained by the instance
///
/// \return Squirrel error code
///
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
static SQInteger Delete(SQUserPointer ptr, SQInteger size) {
SQUNUSED(size);
std::pair<C*, SharedPtr<typename unordered_map<C*, HSQOBJECT>::type> >* instance = reinterpret_cast<std::pair<C*, SharedPtr<typename unordered_map<C*, HSQOBJECT>::type> >*>(ptr);
instance->second->erase(instance->first);
delete instance->first;
delete instance;
return 0;
}
};
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
/// NoDestructor is the allocator to use for Class that can NOT be constructed, copied or destructed
///
/// \tparam C Type of class
///
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
template<class C>
class NoDestructor {
public:
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
/// Associates a newly created instance with an object allocated with the new operator (which is automatically deleted)
///
/// \param vm VM that has an instance object of the correct type at idx
/// \param idx Index of the stack that the instance object is at
/// \param ptr Should be the return value from a call to the new operator
///
/// \remarks
/// This function should only need to be used when custom constructors are bound with Class::SquirrelFunc.
///
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
static void SetInstance(HSQUIRRELVM vm, SQInteger idx, C* ptr)
{
ClassData<C>* cd = ClassType<C>::getClassData(vm);
sq_setinstanceup(vm, idx, new std::pair<C*, SharedPtr<typename unordered_map<C*, HSQOBJECT>::type> >(ptr, cd->instance));
sq_setreleasehook(vm, idx, &Delete);
sq_getstackobj(vm, idx, &((*cd->instances)[ptr]));
}
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
/// Called by Sqrat to set up an instance on the stack for the template class (not allowed in this allocator)
///
/// \param vm VM that has an instance object of the correct type at position 1 in its stack
///
/// \return Squirrel error code
///
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
static SQInteger New(HSQUIRRELVM vm) {
#if !defined (SCRAT_NO_ERROR_CHECKING)
return sq_throwerror(vm, (ClassType<C>::ClassName() + string(_SC(" constructing is not allowed"))).c_str());
#else
SQUNUSED(vm);
return 0;
#endif
}
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
/// Called by Sqrat to set up the instance at idx on the stack as a copy of a value of the same type (not used in this allocator)
///
/// \param vm VM that has an instance object of the correct type at idx
/// \param idx Index of the stack that the instance object is at
/// \param value A pointer to data of the same type as the instance object
///
/// \return Squirrel error code
///
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
static SQInteger Copy(HSQUIRRELVM vm, SQInteger idx, const void* value) {
SQUNUSED(vm);
SQUNUSED(idx);
SQUNUSED(value);
return sq_throwerror(vm, (ClassType<C>::ClassName() + string(_SC(" cloning is not allowed"))).c_str());
}
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
/// Called by Sqrat to delete an instance's data
///
/// \param ptr Pointer to the data contained by the instance
/// \param size Size of the data contained by the instance
///
/// \return Squirrel error code
///
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
static SQInteger Delete(SQUserPointer ptr, SQInteger size) {
SQUNUSED(size);
std::pair<C*, SharedPtr<typename unordered_map<C*, HSQOBJECT>::type> >* instance = reinterpret_cast<std::pair<C*, SharedPtr<typename unordered_map<C*, HSQOBJECT>::type> >*>(ptr);
instance->second->erase(instance->first);
// Only delete our pair instance and leave the actual instance untouched
//delete instance->first;
delete instance;
return 0;
}
};
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
/// CopyOnly is the allocator to use for Class that can be copied but not constructed
///
/// \tparam C Type of class
///
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
template<class C>
class CopyOnly {
public:
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
/// Associates a newly created instance with an object allocated with the new operator (which is automatically deleted)
///
/// \param vm VM that has an instance object of the correct type at idx
/// \param idx Index of the stack that the instance object is at
/// \param ptr Should be the return value from a call to the new operator
///
/// \remarks
/// This function should only need to be used when custom constructors are bound with Class::SquirrelFunc.
///
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
static void SetInstance(HSQUIRRELVM vm, SQInteger idx, C* ptr)
{
ClassData<C>* cd = ClassType<C>::getClassData(vm);
sq_setinstanceup(vm, idx, new std::pair<C*, SharedPtr<typename unordered_map<C*, HSQOBJECT>::type> >(ptr, cd->instances));
sq_setreleasehook(vm, idx, &Delete);
sq_getstackobj(vm, idx, &((*cd->instances)[ptr]));
}
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
/// Called by Sqrat to set up an instance on the stack for the template class (not allowed in this allocator)
///
/// \param vm VM that has an instance object of the correct type at position 1 in its stack
///
/// \return Squirrel error code
///
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
static SQInteger New(HSQUIRRELVM vm) {
#if !defined (SCRAT_NO_ERROR_CHECKING)
return sq_throwerror(vm, (ClassType<C>::ClassName() + string(_SC(" constructing is not allowed"))).c_str());
#else
SQUNUSED(vm);
return 0;
#endif
}
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
/// Called by Sqrat to set up the instance at idx on the stack as a copy of a value of the same type
///
/// \param vm VM that has an instance object of the correct type at idx
/// \param idx Index of the stack that the instance object is at
/// \param value A pointer to data of the same type as the instance object
///
/// \return Squirrel error code
///
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
static SQInteger Copy(HSQUIRRELVM vm, SQInteger idx, const void* value) {
SetInstance(vm, idx, new C(*static_cast<const C*>(value)));
return 0;
}
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
/// Called by Sqrat to delete an instance's data
///
/// \param ptr Pointer to the data contained by the instance
/// \param size Size of the data contained by the instance
///
/// \return Squirrel error code
///
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
static SQInteger Delete(SQUserPointer ptr, SQInteger size) {
SQUNUSED(size);
std::pair<C*, SharedPtr<typename unordered_map<C*, HSQOBJECT>::type> >* instance = reinterpret_cast<std::pair<C*, SharedPtr<typename unordered_map<C*, HSQOBJECT>::type> >*>(ptr);
instance->second->erase(instance->first);
delete instance->first;
delete instance;
return 0;
}
};
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
/// NoCopy is the allocator to use for Class that can be constructed but not copied
///
/// \tparam C Type of class
///
/// \remarks
/// There is mechanisms defined in this class that allow the Class::Ctor method to work properly (e.g. iNew).
///
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
template<class C>
class NoCopy {
template <class T, bool b>
struct NewC
{
T* p;
NewC()
{
p = new T();
}
};
template <class T>
struct NewC<T, false>
{
T* p;
NewC()
{
p = 0;
}
};
public:
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
/// Associates a newly created instance with an object allocated with the new operator (which is automatically deleted)
///
/// \param vm VM that has an instance object of the correct type at idx
/// \param idx Index of the stack that the instance object is at
/// \param ptr Should be the return value from a call to the new operator
///
/// \remarks
/// This function should only need to be used when custom constructors are bound with Class::SquirrelFunc.
///
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
static void SetInstance(HSQUIRRELVM vm, SQInteger idx, C* ptr)
{
ClassData<C>* cd = ClassType<C>::getClassData(vm);
sq_setinstanceup(vm, idx, new std::pair<C*, SharedPtr<typename unordered_map<C*, HSQOBJECT>::type> >(ptr, cd->instances));
sq_setreleasehook(vm, idx, &Delete);
sq_getstackobj(vm, idx, &((*cd->instances)[ptr]));
}
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
/// Called by Sqrat to set up an instance on the stack for the template class
///
/// \param vm VM that has an instance object of the correct type at position 1 in its stack
///
/// \return Squirrel error code
///
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
static SQInteger New(HSQUIRRELVM vm) {
SetInstance(vm, 1, NewC<C, is_default_constructible<C>::value >().p);
return 0;
}
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
/// @cond DEV
/// following iNew functions are used only if constructors are bound via Ctor() in Sqrat::Class (safe to ignore)
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
static SQInteger iNew(HSQUIRRELVM vm) {
return New(vm);
}
template <typename A1>
static SQInteger iNew(HSQUIRRELVM vm) {
SQTRY()
Var<A1> a1(vm, 2);
SQCATCH_NOEXCEPT(vm) {
return sq_throwerror(vm, SQWHAT_NOEXCEPT(vm));
}
SetInstance(vm, 1, new C(
a1.value
));
SQCATCH(vm) {
return sq_throwerror(vm, SQWHAT(vm));
}
return 0;
}
template <typename A1,typename A2>
static SQInteger iNew(HSQUIRRELVM vm) {
SQTRY()
Var<A1> a1(vm, 2);
Var<A2> a2(vm, 3);
SQCATCH_NOEXCEPT(vm) {
return sq_throwerror(vm, SQWHAT_NOEXCEPT(vm));
}
SetInstance(vm, 1, new C(
a1.value,
a2.value
));
SQCATCH(vm) {
return sq_throwerror(vm, SQWHAT(vm));
}
return 0;
}
template <typename A1,typename A2,typename A3>
static SQInteger iNew(HSQUIRRELVM vm) {
SQTRY()
Var<A1> a1(vm, 2);
Var<A2> a2(vm, 3);
Var<A3> a3(vm, 4);
SQCATCH_NOEXCEPT(vm) {
return sq_throwerror(vm, SQWHAT_NOEXCEPT(vm));
}
SetInstance(vm, 1, new C(
a1.value,
a2.value,
a3.value
));
SQCATCH(vm) {
return sq_throwerror(vm, SQWHAT(vm));
}
return 0;
}
template <typename A1,typename A2,typename A3,typename A4>
static SQInteger iNew(HSQUIRRELVM vm) {
SQTRY()
Var<A1> a1(vm, 2);
Var<A2> a2(vm, 3);
Var<A3> a3(vm, 4);
Var<A4> a4(vm, 5);
SQCATCH_NOEXCEPT(vm) {
return sq_throwerror(vm, SQWHAT_NOEXCEPT(vm));
}
SetInstance(vm, 1, new C(
a1.value,
a2.value,
a3.value,
a4.value
));
SQCATCH(vm) {
return sq_throwerror(vm, SQWHAT(vm));
}
return 0;
}
template <typename A1,typename A2,typename A3,typename A4,typename A5>
static SQInteger iNew(HSQUIRRELVM vm) {
SQTRY()
Var<A1> a1(vm, 2);
Var<A2> a2(vm, 3);
Var<A3> a3(vm, 4);
Var<A4> a4(vm, 5);
Var<A5> a5(vm, 6);
SQCATCH_NOEXCEPT(vm) {
return sq_throwerror(vm, SQWHAT_NOEXCEPT(vm));
}
SetInstance(vm, 1, new C(
a1.value,
a2.value,
a3.value,
a4.value,
a5.value
));
SQCATCH(vm) {
return sq_throwerror(vm, SQWHAT(vm));
}
return 0;
}
template <typename A1,typename A2,typename A3,typename A4,typename A5,typename A6>
static SQInteger iNew(HSQUIRRELVM vm) {
SQTRY()
Var<A1> a1(vm, 2);
Var<A2> a2(vm, 3);
Var<A3> a3(vm, 4);
Var<A4> a4(vm, 5);
Var<A5> a5(vm, 6);
Var<A6> a6(vm, 7);
SQCATCH_NOEXCEPT(vm) {
return sq_throwerror(vm, SQWHAT_NOEXCEPT(vm));
}
SetInstance(vm, 1, new C(
a1.value,
a2.value,
a3.value,
a4.value,
a5.value,
a6.value
));
SQCATCH(vm) {
return sq_throwerror(vm, SQWHAT(vm));
}
return 0;
}
template <typename A1,typename A2,typename A3,typename A4,typename A5,typename A6,typename A7>
static SQInteger iNew(HSQUIRRELVM vm) {
SQTRY()
Var<A1> a1(vm, 2);
Var<A2> a2(vm, 3);
Var<A3> a3(vm, 4);
Var<A4> a4(vm, 5);
Var<A5> a5(vm, 6);
Var<A6> a6(vm, 7);
Var<A7> a7(vm, 8);
SQCATCH_NOEXCEPT(vm) {
return sq_throwerror(vm, SQWHAT_NOEXCEPT(vm));
}
SetInstance(vm, 1, new C(
a1.value,
a2.value,
a3.value,
a4.value,
a5.value,
a6.value,
a7.value
));
SQCATCH(vm) {
return sq_throwerror(vm, SQWHAT(vm));
}
return 0;
}
template <typename A1,typename A2,typename A3,typename A4,typename A5,typename A6,typename A7,typename A8>
static SQInteger iNew(HSQUIRRELVM vm) {
SQTRY()
Var<A1> a1(vm, 2);
Var<A2> a2(vm, 3);
Var<A3> a3(vm, 4);
Var<A4> a4(vm, 5);
Var<A5> a5(vm, 6);
Var<A6> a6(vm, 7);
Var<A7> a7(vm, 8);
Var<A8> a8(vm, 9);
SQCATCH_NOEXCEPT(vm) {
return sq_throwerror(vm, SQWHAT_NOEXCEPT(vm));
}
SetInstance(vm, 1, new C(
a1.value,
a2.value,
a3.value,
a4.value,
a5.value,
a6.value,
a7.value,
a8.value
));
SQCATCH(vm) {
return sq_throwerror(vm, SQWHAT(vm));
}
return 0;
}
template <typename A1,typename A2,typename A3,typename A4,typename A5,typename A6,typename A7,typename A8,typename A9>
static SQInteger iNew(HSQUIRRELVM vm) {
SQTRY()
Var<A1> a1(vm, 2);
Var<A2> a2(vm, 3);
Var<A3> a3(vm, 4);
Var<A4> a4(vm, 5);
Var<A5> a5(vm, 6);
Var<A6> a6(vm, 7);
Var<A7> a7(vm, 8);
Var<A8> a8(vm, 9);
Var<A9> a9(vm, 10);
SQCATCH_NOEXCEPT(vm) {
return sq_throwerror(vm, SQWHAT_NOEXCEPT(vm));
}
SetInstance(vm, 1, new C(
a1.value,
a2.value,
a3.value,
a4.value,
a5.value,
a6.value,
a7.value,
a8.value,
a9.value
));
SQCATCH(vm) {
return sq_throwerror(vm, SQWHAT(vm));
}
return 0;
}
/// @endcond
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
/// @cond DEV
/// following iNew functions are used only if constructors are bound via FmtCtor() in Sqrat::Class (safe to ignore)
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
static SQInteger iFmtNew(HSQUIRRELVM vm) {
SQTRY()
StackStrF fmt(vm, 2);
// Validate the format
if (SQ_FAILED(fmt.Proc(true))) {
return fmt.mRes;
}
SetInstance(vm, 1, new C(
fmt
));
SQCATCH(vm) {
return sq_throwerror(vm, SQWHAT(vm));
}
return 0;
}
template <typename A1>
static SQInteger iFmtNew(HSQUIRRELVM vm) {
SQTRY()
Var<A1> a1(vm, 2);
SQCATCH_NOEXCEPT(vm) {
return sq_throwerror(vm, SQWHAT_NOEXCEPT(vm));
}
StackStrF fmt(vm, 3);
// Validate the format
if (SQ_FAILED(fmt.Proc(true))) {
return fmt.mRes;
}
SetInstance(vm, 1, new C(
a1.value,
fmt
));
SQCATCH(vm) {
return sq_throwerror(vm, SQWHAT(vm));
}
return 0;
}
template <typename A1,typename A2>
static SQInteger iFmtNew(HSQUIRRELVM vm) {
SQTRY()
Var<A1> a1(vm, 2);
Var<A2> a2(vm, 3);
SQCATCH_NOEXCEPT(vm) {
return sq_throwerror(vm, SQWHAT_NOEXCEPT(vm));
}
const StackStrF fmt(vm, 4, true);
// Validate the format
if (SQ_FAILED(fmt.mRes)) {
return fmt.mRes;
}
SetInstance(vm, 1, new C(
a1.value,
a2.value,
fmt
));
SQCATCH(vm) {
return sq_throwerror(vm, SQWHAT(vm));
}
return 0;
}
template <typename A1,typename A2,typename A3>
static SQInteger iFmtNew(HSQUIRRELVM vm) {
SQTRY()
Var<A1> a1(vm, 2);
Var<A2> a2(vm, 3);
Var<A3> a3(vm, 4);
SQCATCH_NOEXCEPT(vm) {
return sq_throwerror(vm, SQWHAT_NOEXCEPT(vm));
}
const StackStrF fmt(vm, 5, true);
// Validate the format
if (SQ_FAILED(fmt.mRes)) {
return fmt.mRes;
}
SetInstance(vm, 1, new C(
a1.value,
a2.value,
a3.value,
fmt
));
SQCATCH(vm) {
return sq_throwerror(vm, SQWHAT(vm));
}
return 0;
}
template <typename A1,typename A2,typename A3,typename A4>
static SQInteger iFmtNew(HSQUIRRELVM vm) {
SQTRY()
Var<A1> a1(vm, 2);
Var<A2> a2(vm, 3);
Var<A3> a3(vm, 4);
Var<A4> a4(vm, 5);
SQCATCH_NOEXCEPT(vm) {
return sq_throwerror(vm, SQWHAT_NOEXCEPT(vm));
}
const StackStrF fmt(vm, 6, true);
// Validate the format
if (SQ_FAILED(fmt.mRes)) {
return fmt.mRes;
}
SetInstance(vm, 1, new C(
a1.value,
a2.value,
a3.value,
a4.value,
fmt
));
SQCATCH(vm) {
return sq_throwerror(vm, SQWHAT(vm));
}
return 0;
}
template <typename A1,typename A2,typename A3,typename A4,typename A5>
static SQInteger iFmtNew(HSQUIRRELVM vm) {
SQTRY()
Var<A1> a1(vm, 2);
Var<A2> a2(vm, 3);
Var<A3> a3(vm, 4);
Var<A4> a4(vm, 5);
Var<A5> a5(vm, 6);
SQCATCH_NOEXCEPT(vm) {
return sq_throwerror(vm, SQWHAT_NOEXCEPT(vm));
}
const StackStrF fmt(vm, 7, true);
// Validate the format
if (SQ_FAILED(fmt.mRes)) {
return fmt.mRes;
}
SetInstance(vm, 1, new C(
a1.value,
a2.value,
a3.value,
a4.value,
a5.value,
fmt
));
SQCATCH(vm) {
return sq_throwerror(vm, SQWHAT(vm));
}
return 0;
}
template <typename A1,typename A2,typename A3,typename A4,typename A5,typename A6>
static SQInteger iFmtNew(HSQUIRRELVM vm) {
SQTRY()
Var<A1> a1(vm, 2);
Var<A2> a2(vm, 3);
Var<A3> a3(vm, 4);
Var<A4> a4(vm, 5);
Var<A5> a5(vm, 6);
Var<A6> a6(vm, 7);
SQCATCH_NOEXCEPT(vm) {
return sq_throwerror(vm, SQWHAT_NOEXCEPT(vm));
}
const StackStrF fmt(vm, 8, true);
// Validate the format
if (SQ_FAILED(fmt.mRes)) {
return fmt.mRes;
}
SetInstance(vm, 1, new C(
a1.value,
a2.value,
a3.value,
a4.value,
a5.value,
a6.value,
fmt
));
SQCATCH(vm) {
return sq_throwerror(vm, SQWHAT(vm));
}
return 0;
}
template <typename A1,typename A2,typename A3,typename A4,typename A5,typename A6,typename A7>
static SQInteger iFmtNew(HSQUIRRELVM vm) {
SQTRY()
Var<A1> a1(vm, 2);
Var<A2> a2(vm, 3);
Var<A3> a3(vm, 4);
Var<A4> a4(vm, 5);
Var<A5> a5(vm, 6);
Var<A6> a6(vm, 7);
Var<A7> a7(vm, 8);
SQCATCH_NOEXCEPT(vm) {
return sq_throwerror(vm, SQWHAT_NOEXCEPT(vm));
}
const StackStrF fmt(vm, 9, true);
// Validate the format
if (SQ_FAILED(fmt.mRes)) {
return fmt.mRes;
}
SetInstance(vm, 1, new C(
a1.value,
a2.value,
a3.value,
a4.value,
a5.value,
a6.value,
a7.value,
fmt
));
SQCATCH(vm) {
return sq_throwerror(vm, SQWHAT(vm));
}
return 0;
}
template <typename A1,typename A2,typename A3,typename A4,typename A5,typename A6,typename A7,typename A8>
static SQInteger iFmtNew(HSQUIRRELVM vm) {
SQTRY()
Var<A1> a1(vm, 2);
Var<A2> a2(vm, 3);
Var<A3> a3(vm, 4);
Var<A4> a4(vm, 5);
Var<A5> a5(vm, 6);
Var<A6> a6(vm, 7);
Var<A7> a7(vm, 8);
Var<A8> a8(vm, 9);
SQCATCH_NOEXCEPT(vm) {
return sq_throwerror(vm, SQWHAT_NOEXCEPT(vm));
}
const StackStrF fmt(vm, 10, true);
// Validate the format
if (SQ_FAILED(fmt.mRes)) {
return fmt.mRes;
}
SetInstance(vm, 1, new C(
a1.value,
a2.value,
a3.value,
a4.value,
a5.value,
a6.value,
a7.value,
a8.value,
fmt
));
SQCATCH(vm) {
return sq_throwerror(vm, SQWHAT(vm));
}
return 0;
}
template <typename A1,typename A2,typename A3,typename A4,typename A5,typename A6,typename A7,typename A8,typename A9>
static SQInteger iFmtNew(HSQUIRRELVM vm) {
SQTRY()
Var<A1> a1(vm, 2);
Var<A2> a2(vm, 3);
Var<A3> a3(vm, 4);
Var<A4> a4(vm, 5);
Var<A5> a5(vm, 6);
Var<A6> a6(vm, 7);
Var<A7> a7(vm, 8);
Var<A8> a8(vm, 9);
Var<A9> a9(vm, 10);
SQCATCH_NOEXCEPT(vm) {
return sq_throwerror(vm, SQWHAT_NOEXCEPT(vm));
}
const StackStrF fmt(vm, 11, true);
// Validate the format
if (SQ_FAILED(fmt.mRes)) {
return fmt.mRes;
}
SetInstance(vm, 1, new C(
a1.value,
a2.value,
a3.value,
a4.value,
a5.value,
a6.value,
a7.value,
a8.value,
a9.value,
fmt
));
SQCATCH(vm) {
return sq_throwerror(vm, SQWHAT(vm));
}
return 0;
}
/// @endcond
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
/// Called by Sqrat to set up the instance at idx on the stack as a copy of a value of the same type (not used in this allocator)
///
/// \param vm VM that has an instance object of the correct type at idx
/// \param idx Index of the stack that the instance object is at
/// \param value A pointer to data of the same type as the instance object
///
/// \return Squirrel error code
///
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
static SQInteger Copy(HSQUIRRELVM vm, SQInteger idx, const void* value) {
SQUNUSED(vm);
SQUNUSED(idx);
SQUNUSED(value);
return sq_throwerror(vm, (ClassType<C>::ClassName() + string(_SC(" cloning is not allowed"))).c_str());
}
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
/// Called by Sqrat to delete an instance's data
///
/// \param ptr Pointer to the data contained by the instance
/// \param size Size of the data contained by the instance
///
/// \return Squirrel error code
///
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
static SQInteger Delete(SQUserPointer ptr, SQInteger size) {
SQUNUSED(size);
std::pair<C*, SharedPtr<typename unordered_map<C*, HSQOBJECT>::type> >* instance = reinterpret_cast<std::pair<C*, SharedPtr<typename unordered_map<C*, HSQOBJECT>::type> >*>(ptr);
instance->second->erase(instance->first);
delete instance->first;
delete instance;
return 0;
}
};
}
#endif
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