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//
// SqratTypes: Type Translators
//
//
// 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_TYPES_H_)
#define _SCRAT_TYPES_H_
#include <squirrel.h>
#include <string>
#include "sqratClassType.h"
namespace Sqrat {
//
// Variable Accessors
//
// Generic classes
template<class T>
struct Var {
T value;
Var(HSQUIRRELVM vm, SQInteger idx) {
value = *ClassType<T>::GetInstance(vm, idx);
}
static void push(HSQUIRRELVM vm, T value) {
ClassType<T>::PushInstanceCopy(vm, value);
}
};
template<class T>
struct Var<T&> {
T value;
Var(HSQUIRRELVM vm, SQInteger idx) {
value = *ClassType<T>::GetInstance(vm, idx);
}
static void push(HSQUIRRELVM vm, T value) {
ClassType<T>::PushInstanceCopy(vm, value);
}
};
template<class T>
struct Var<T*> {
T* value;
Var(HSQUIRRELVM vm, SQInteger idx) {
value = ClassType<T>::GetInstance(vm, idx);
}
static void push(HSQUIRRELVM vm, T* value) {
ClassType<T>::PushInstance(vm, value);
}
};
template<class T>
struct Var<const T&> {
T value;
Var(HSQUIRRELVM vm, SQInteger idx) {
value = *ClassType<T>::GetInstance(vm, idx);
}
static void push(HSQUIRRELVM vm, T value) {
ClassType<T>::PushInstanceCopy(vm, value);
}
};
template<class T>
struct Var<const T*> {
T* value;
Var(HSQUIRRELVM vm, SQInteger idx) {
value = ClassType<T>::GetInstance(vm, idx);
}
static void push(HSQUIRRELVM vm, T* value) {
ClassType<T>::PushInstance(vm, value);
}
};
// Integer Types
#define SCRAT_INTEGER( type ) \
template<> \
struct Var<type> { \
type value; \
Var(HSQUIRRELVM vm, SQInteger idx) { \
SQInteger sqValue; \
sq_getinteger(vm, idx, &sqValue); \
value = static_cast<type>(sqValue); \
} \
static void push(HSQUIRRELVM vm, type& value) { \
sq_pushinteger(vm, static_cast<SQInteger>(value)); \
} \
};\
\
template<> \
struct Var<const type> { \
type value; \
Var(HSQUIRRELVM vm, SQInteger idx) { \
SQInteger sqValue; \
sq_getinteger(vm, idx, &sqValue); \
value = static_cast<type>(sqValue); \
} \
static void push(HSQUIRRELVM vm, const type& value) { \
sq_pushinteger(vm, static_cast<SQInteger>(value)); \
} \
}; \
\
template<> \
struct Var<const type&> { \
type value; \
Var(HSQUIRRELVM vm, SQInteger idx) { \
SQInteger sqValue; \
sq_getinteger(vm, idx, &sqValue); \
value = static_cast<type>(sqValue); \
} \
static void push(HSQUIRRELVM vm, const type& value) { \
sq_pushinteger(vm, static_cast<SQInteger>(value)); \
} \
};
SCRAT_INTEGER(unsigned int)
SCRAT_INTEGER(signed int)
SCRAT_INTEGER(unsigned long)
SCRAT_INTEGER(signed long)
SCRAT_INTEGER(unsigned short)
SCRAT_INTEGER(signed short)
#if defined(__int64)
SCRAT_INTEGER(unsigned __int64)
SCRAT_INTEGER(signed __int64)
#endif
// Float Types
#define SCRAT_FLOAT( type ) \
template<> \
struct Var<type> { \
type value; \
Var(HSQUIRRELVM vm, SQInteger idx) { \
SQFloat sqValue; \
sq_getfloat(vm, idx, &sqValue); \
value = static_cast<type>(sqValue); \
} \
static void push(HSQUIRRELVM vm, type& value) { \
sq_pushfloat(vm, static_cast<SQFloat>(value)); \
} \
}; \
\
template<> \
struct Var<const type> { \
type value; \
Var(HSQUIRRELVM vm, SQInteger idx) { \
SQFloat sqValue; \
sq_getfloat(vm, idx, &sqValue); \
value = static_cast<type>(sqValue); \
} \
static void push(HSQUIRRELVM vm, const type& value) { \
sq_pushfloat(vm, static_cast<SQFloat>(value)); \
} \
}; \
template<> \
struct Var<const type&> { \
type value; \
Var(HSQUIRRELVM vm, SQInteger idx) { \
SQFloat sqValue; \
sq_getfloat(vm, idx, &sqValue); \
value = static_cast<type>(sqValue); \
} \
static void push(HSQUIRRELVM vm, const type& value) { \
sq_pushfloat(vm, static_cast<SQFloat>(value)); \
} \
};
SCRAT_FLOAT(float)
SCRAT_FLOAT(double)
// Boolean Types
template<>
struct Var<bool> {
bool value;
Var(HSQUIRRELVM vm, SQInteger idx) {
SQBool sqValue;
sq_tobool(vm, idx, &sqValue);
value = (sqValue != 0);
}
static void push(HSQUIRRELVM vm, bool& value) {
sq_pushbool(vm, static_cast<SQBool>(value));
}
};
template<>
struct Var<const bool> {
bool value;
Var(HSQUIRRELVM vm, SQInteger idx) {
SQBool sqValue;
sq_tobool(vm, idx, &sqValue);
value = (sqValue != 0);
}
static void push(HSQUIRRELVM vm, const bool& value) {
sq_pushbool(vm, static_cast<SQBool>(value));
}
};
template<>
struct Var<const bool&> {
bool value;
Var(HSQUIRRELVM vm, SQInteger idx) {
SQBool sqValue;
sq_tobool(vm, idx, &sqValue);
value = (sqValue != 0);
}
static void push(HSQUIRRELVM vm, const bool& value) {
sq_pushbool(vm, static_cast<SQBool>(value));
}
};
// String Types
typedef std::basic_string<SQChar> string;
template<>
struct Var<SQChar*> {
SQChar* value;
HSQOBJECT obj;/* hold a reference to the object holding value during the Var struct lifetime*/
HSQUIRRELVM v;
Var(HSQUIRRELVM vm, SQInteger idx) {
sq_tostring(vm, idx);
sq_getstackobj(vm, -1, &obj);
sq_getstring(vm, -1, (const SQChar**)&value);
sq_addref(vm, &obj);
sq_pop(vm,1);
v = vm;
}
~Var()
{
if(v && !sq_isnull(obj)) {
sq_release(v, &obj);
}
}
static void push(HSQUIRRELVM vm, SQChar* value) {
sq_pushstring(vm, value, -1);
}
};
template<>
struct Var<const SQChar*> {
const SQChar* value;
HSQOBJECT obj; /* hold a reference to the object holding value during the Var struct lifetime*/
HSQUIRRELVM v;
Var(HSQUIRRELVM vm, SQInteger idx) {
sq_tostring(vm, idx);
sq_getstackobj(vm, -1, &obj);
sq_getstring(vm, -1, &value);
sq_addref(vm, &obj);
sq_pop(vm,1);
v = vm;
}
~Var()
{
if(v && !sq_isnull(obj)) {
sq_release(v, &obj);
}
}
static void push(HSQUIRRELVM vm, const SQChar* value) {
sq_pushstring(vm, value, -1);
}
};
template<>
struct Var<string> {
string value;
Var(HSQUIRRELVM vm, SQInteger idx) {
const SQChar* ret;
sq_tostring(vm, idx);
sq_getstring(vm, -1, &ret);
value = string(ret);
sq_pop(vm,1);
}
static void push(HSQUIRRELVM vm, string value) {
sq_pushstring(vm, value.c_str(), -1);
}
};
template<>
struct Var<string&> {
string value;
Var(HSQUIRRELVM vm, SQInteger idx) {
const SQChar* ret;
sq_tostring(vm, idx);
sq_getstring(vm, -1, &ret);
value = string(ret);
sq_pop(vm,1);
}
static void push(HSQUIRRELVM vm, string value) {
sq_pushstring(vm, value.c_str(), -1);
}
};
template<>
struct Var<const string&> {
string value;
Var(HSQUIRRELVM vm, SQInteger idx) {
const SQChar* ret;
sq_tostring(vm, idx);
sq_getstring(vm, -1, &ret);
value = string(ret);
sq_pop(vm,1);
}
static void push(HSQUIRRELVM vm, string value) {
sq_pushstring(vm, value.c_str(), -1);
}
};
//
// Variable Accessors
//
// Push
template<class T>
inline void PushVar(HSQUIRRELVM vm, T value) {
Var<T>::push(vm, value);
}
}
#endif
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