mirror of
https://github.com/VCMP-SqMod/SqMod.git
synced 2024-11-09 01:07:16 +01:00
1139 lines
44 KiB
C++
1139 lines
44 KiB
C++
//
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// SqratTypes: Type Translators
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//
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//
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// Copyright (c) 2009 Brandon Jones
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//
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// This software is provided 'as-is', without any express or implied
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// warranty. In no event will the authors be held liable for any damages
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// arising from the use of this software.
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//
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// Permission is granted to anyone to use this software for any purpose,
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// including commercial applications, and to alter it and redistribute it
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// freely, subject to the following restrictions:
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//
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// 1. The origin of this software must not be misrepresented; you must not
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// claim that you wrote the original software. If you use this software
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// in a product, an acknowledgment in the product documentation would be
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// appreciated but is not required.
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//
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// 2. Altered source versions must be plainly marked as such, and must not be
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// misrepresented as being the original software.
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//
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// 3. This notice may not be removed or altered from any source
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// distribution.
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//
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#if !defined(_SCRAT_TYPES_H_)
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#define _SCRAT_TYPES_H_
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#ifdef SQUNICODE
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#include <cstdlib>
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#include <cstring>
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#endif
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#ifdef SQMOD_PLUGIN_API
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#include <SqAPI.h>
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#else
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#include <squirrel.h>
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#endif // SQMOD_PLUGIN_API
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#include <string>
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#include "sqratClassType.h"
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#include "sqratUtil.h"
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namespace Sqrat {
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/// @cond DEV
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// copied from http://www.experts-exchange.com/Programming/Languages/CPP/A_223-Determing-if-a-C-type-is-convertable-to-another-at-compile-time.html
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template <typename T1, typename T2>
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struct is_convertible
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{
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private:
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struct True_ { char x[2]; };
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struct False_ { };
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static True_ helper(T2 const &);
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static False_ helper(...);
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static T1* dummy;
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public:
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static bool const YES = (
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sizeof(True_) == sizeof(is_convertible::helper(*dummy))
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);
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};
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template <typename T, bool b>
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struct popAsInt
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{
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T value;
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popAsInt(HSQUIRRELVM vm, SQInteger idx)
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{
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SQObjectType value_type = sq_gettype(vm, idx);
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switch(value_type) {
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case OT_BOOL:
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SQBool sqValueb;
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sq_getbool(vm, idx, &sqValueb);
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value = static_cast<T>(sqValueb);
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break;
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case OT_INTEGER:
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SQInteger sqValue;
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sq_getinteger(vm, idx, &sqValue);
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value = static_cast<T>(sqValue);
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break;
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case OT_FLOAT:
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SQFloat sqValuef;
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sq_getfloat(vm, idx, &sqValuef);
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value = static_cast<T>(static_cast<int>(sqValuef));
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break;
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default:
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SQTHROW(vm, FormatTypeError(vm, idx, _SC("integer")));
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value = static_cast<T>(0);
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break;
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}
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}
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};
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template <typename T>
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struct popAsInt<T, false>
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{
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T value; // cannot be initialized because unknown constructor parameters
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popAsInt(HSQUIRRELVM /*vm*/, SQInteger /*idx*/)
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{
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// keep the current error message already set previously, do not touch that here
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}
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};
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template <typename T>
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struct popAsFloat
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{
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T value;
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popAsFloat(HSQUIRRELVM vm, SQInteger idx)
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{
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SQObjectType value_type = sq_gettype(vm, idx);
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switch(value_type) {
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case OT_BOOL:
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SQBool sqValueb;
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sq_getbool(vm, idx, &sqValueb);
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value = static_cast<T>(sqValueb);
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break;
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case OT_INTEGER:
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SQInteger sqValue; \
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sq_getinteger(vm, idx, &sqValue);
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value = static_cast<T>(sqValue);
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break;
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case OT_FLOAT:
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SQFloat sqValuef;
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sq_getfloat(vm, idx, &sqValuef);
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value = static_cast<T>(sqValuef);
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break;
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default:
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SQTHROW(vm, FormatTypeError(vm, idx, _SC("float")));
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value = 0;
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break;
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}
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}
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};
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/// @endcond
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/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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/// Used to get and push class instances to and from the stack as copies
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///
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/// \tparam T Type of instance (usually doesnt need to be defined explicitly)
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///
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/// \remarks
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/// This specialization requires T to have a default constructor.
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///
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/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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template<class T>
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struct Var {
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T value; ///< The actual value of get operations
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/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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/// Attempts to get the value off the stack at idx as the given type
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///
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/// \param vm Target VM
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/// \param idx Index trying to be read
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///
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/// \remarks
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/// This function MUST have its Error handled if it occurred.
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///
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/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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Var(HSQUIRRELVM vm, SQInteger idx) {
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SQTRY()
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T* ptr = ClassType<T>::GetInstance(vm, idx);
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if (ptr != NULL) {
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value = *ptr;
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#if !defined (SCRAT_NO_ERROR_CHECKING)
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} else if (is_convertible<T, SQInteger>::YES) { /* value is likely of integral type like enums */
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SQCLEAR(vm); // clear the previous error
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value = popAsInt<T, is_convertible<T, SQInteger>::YES>(vm, idx).value;
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#endif
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} else {
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// initialize value to avoid warnings
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value = popAsInt<T, is_convertible<T, SQInteger>::YES>(vm, idx).value;
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}
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SQCATCH(vm) {
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#if defined (SCRAT_USE_EXCEPTIONS)
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SQUNUSED(e); // avoid "unreferenced local variable" warning
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#endif
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if (is_convertible<T, SQInteger>::YES) { /* value is likely of integral type like enums */
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value = popAsInt<T, is_convertible<T, SQInteger>::YES>(vm, idx).value;
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} else {
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SQRETHROW(vm);
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}
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}
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}
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/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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/// Called by Sqrat::PushVar to put a class object on the stack
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///
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/// \param vm Target VM
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/// \param value Value to push on to the VM's stack
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///
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/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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static void push(HSQUIRRELVM vm, const T& value) {
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if (ClassType<T>::hasClassData(vm))
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ClassType<T>::PushInstanceCopy(vm, value);
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else /* try integral type */
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pushAsInt<T, is_convertible<T, SQInteger>::YES>().push(vm, value);
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}
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private:
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template <class T2, bool b>
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struct pushAsInt {
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void push(HSQUIRRELVM vm, const T2& /*value*/) {
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assert(false); // fails because called before a Sqrat::Class for T exists and T is not convertible to SQInteger
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sq_pushnull(vm);
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}
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};
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template <class T2>
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struct pushAsInt<T2, true> {
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void push(HSQUIRRELVM vm, const T2& value) {
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sq_pushinteger(vm, static_cast<SQInteger>(value));
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}
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};
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};
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/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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/// Used to get and push class instances to and from the stack as references
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///
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/// \tparam T Type of instance (usually doesnt need to be defined explicitly)
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///
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/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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template<class T>
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struct Var<T&> {
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T& value; ///< The actual value of get operations
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/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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/// Attempts to get the value off the stack at idx as the given type
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///
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/// \param vm Target VM
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/// \param idx Index trying to be read
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///
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/// \remarks
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/// This function MUST have its Error handled if it occurred.
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///
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/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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Var(HSQUIRRELVM vm, SQInteger idx) : value(*ClassType<T>::GetInstance(vm, idx)) {
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}
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/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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/// Called by Sqrat::PushVarR to put a class object on the stack
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///
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/// \param vm Target VM
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/// \param value Value to push on to the VM's stack
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///
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/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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static void push(HSQUIRRELVM vm, T& value) {
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if (ClassType<T>::hasClassData(vm))
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ClassType<T>::PushInstance(vm, &value);
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else /* try integral type */
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pushAsInt<T, is_convertible<T, SQInteger>::YES>().push(vm, value);
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}
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private:
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template <class T2, bool b>
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struct pushAsInt {
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void push(HSQUIRRELVM vm, const T2& /*value*/) {
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assert(false); // fails because called before a Sqrat::Class for T exists and T is not convertible to SQInteger
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sq_pushnull(vm);
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}
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};
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template <class T2>
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struct pushAsInt<T2, true> {
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void push(HSQUIRRELVM vm, const T2& value) {
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sq_pushinteger(vm, static_cast<SQInteger>(value));
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}
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};
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};
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/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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/// Used to get and push class instances to and from the stack as pointers
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///
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/// \tparam T Type of instance (usually doesnt need to be defined explicitly)
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///
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/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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template<class T>
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struct Var<T*> {
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T* value; ///< The actual value of get operations
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/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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/// Attempts to get the value off the stack at idx as the given type
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///
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/// \param vm Target VM
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/// \param idx Index trying to be read
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///
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/// \remarks
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/// This function MUST have its Error handled if it occurred.
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///
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/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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Var(HSQUIRRELVM vm, SQInteger idx) : value(ClassType<T>::GetInstance(vm, idx, true)) {
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}
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/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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/// Called by Sqrat::PushVar to put a class object on the stack
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///
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/// \param vm Target VM
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/// \param value Value to push on to the VM's stack
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///
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/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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static void push(HSQUIRRELVM vm, T* value) {
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ClassType<T>::PushInstance(vm, value);
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}
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};
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/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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/// Used to get and push class instances to and from the stack as pointers to const data
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///
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/// \tparam T Type of instance (usually doesnt need to be defined explicitly)
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///
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/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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template<class T>
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struct Var<T* const> {
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T* const value; ///< The actual value of get operations
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/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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/// Attempts to get the value off the stack at idx as the given type
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///
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/// \param vm Target VM
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/// \param idx Index trying to be read
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///
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/// \remarks
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/// This function MUST have its Error handled if it occurred.
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///
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/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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Var(HSQUIRRELVM vm, SQInteger idx) : value(ClassType<T>::GetInstance(vm, idx, true)) {
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}
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/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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/// Called by Sqrat::PushVar to put a class object on the stack
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///
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/// \param vm Target VM
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/// \param value Value to push on to the VM's stack
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///
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/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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static void push(HSQUIRRELVM vm, T* const value) {
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ClassType<T>::PushInstance(vm, value);
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}
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};
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/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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/// Used to get and push class instances to and from the stack as const references
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///
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/// \tparam T Type of instance (usually doesnt need to be defined explicitly)
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///
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/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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template<class T>
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struct Var<const T&> {
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const T& value; ///< The actual value of get operations
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/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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/// Attempts to get the value off the stack at idx as the given type
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///
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/// \param vm Target VM
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/// \param idx Index trying to be read
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///
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/// \remarks
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/// This function MUST have its Error handled if it occurred.
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///
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/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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Var(HSQUIRRELVM vm, SQInteger idx) : value(*ClassType<T>::GetInstance(vm, idx)) {
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}
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/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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/// Called by Sqrat::PushVar to put a class object on the stack
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///
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/// \param vm Target VM
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/// \param value Value to push on to the VM's stack
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///
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/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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static void push(HSQUIRRELVM vm, const T& value) {
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ClassType<T>::PushInstanceCopy(vm, value);
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}
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};
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/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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/// Used to get and push class instances to and from the stack as const pointers
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///
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/// \tparam T Type of instance (usually doesnt need to be defined explicitly)
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///
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/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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template<class T>
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struct Var<const T*> {
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const T* value; ///< The actual value of get operations
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/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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/// Attempts to get the value off the stack at idx as the given type
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///
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/// \param vm Target VM
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/// \param idx Index trying to be read
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///
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/// \remarks
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/// This function MUST have its Error handled if it occurred.
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///
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/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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Var(HSQUIRRELVM vm, SQInteger idx) : value(ClassType<T>::GetInstance(vm, idx, true)) {
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}
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/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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/// Called by Sqrat::PushVar to put a class object on the stack
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///
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/// \param vm Target VM
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/// \param value Value to push on to the VM's stack
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///
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/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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static void push(HSQUIRRELVM vm, const T* value) {
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ClassType<T>::PushInstance(vm, const_cast<T*>(value));
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}
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};
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/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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/// Used to get and push class instances to and from the stack as const pointers to const data
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///
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/// \tparam T Type of instance (usually doesnt need to be defined explicitly)
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///
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/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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template<class T>
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struct Var<const T* const> {
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const T* const value; ///< The actual value of get operations
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/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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/// Attempts to get the value off the stack at idx as the given type
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///
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/// \param vm Target VM
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/// \param idx Index trying to be read
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///
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/// \remarks
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/// This function MUST have its Error handled if it occurred.
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///
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/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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Var(HSQUIRRELVM vm, SQInteger idx) : value(ClassType<T>::GetInstance(vm, idx, true)) {
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}
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/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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/// Called by Sqrat::PushVar to put a class object on the stack
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///
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/// \param vm Target VM
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/// \param value Value to push on to the VM's stack
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///
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/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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static void push(HSQUIRRELVM vm, const T* const value) {
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ClassType<T>::PushInstance(vm, const_cast<T*>(value));
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}
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};
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/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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/// Used to get (as copies) and push (as references) class instances to and from the stack as a SharedPtr
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///
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/// \tparam T Type of instance (usually doesnt need to be defined explicitly)
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///
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/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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template<class T> void PushVarR(HSQUIRRELVM vm, T& value);
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template<class T>
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struct Var<SharedPtr<T> > {
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SharedPtr<T> value; ///< The actual value of get operations
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/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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/// Attempts to get the value off the stack at idx as the given type
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///
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/// \param vm Target VM
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/// \param idx Index trying to be read
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///
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/// \remarks
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/// This function MUST have its Error handled if it occurred.
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///
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/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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Var(HSQUIRRELVM vm, SQInteger idx) {
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if (sq_gettype(vm, idx) != OT_NULL) {
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Var<T> instance(vm, idx);
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SQCATCH_NOEXCEPT(vm) {
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return;
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}
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value.Init(new T(instance.value));
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}
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}
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/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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/// Called by Sqrat::PushVar to put a class object on the stack
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///
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/// \param vm Target VM
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/// \param value Value to push on to the VM's stack
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///
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/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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static void push(HSQUIRRELVM vm, const SharedPtr<T>& value) {
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PushVarR(vm, *value);
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}
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};
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|
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// Integer types
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#define SCRAT_INTEGER( type ) \
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|
template<> \
|
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struct Var<type> { \
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type value; \
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Var(HSQUIRRELVM vm, SQInteger idx) { \
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value = popAsInt<type, true>(vm, idx).value; \
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} \
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static void push(HSQUIRRELVM vm, const type& value) { \
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sq_pushinteger(vm, static_cast<SQInteger>(value)); \
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} \
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};\
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\
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template<> \
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struct Var<const type&> { \
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type value; \
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Var(HSQUIRRELVM vm, SQInteger idx) { \
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value = popAsInt<type, true>(vm, idx).value; \
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} \
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static void push(HSQUIRRELVM vm, const type& value) { \
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sq_pushinteger(vm, static_cast<SQInteger>(value)); \
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} \
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};
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|
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SCRAT_INTEGER(unsigned int)
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SCRAT_INTEGER(signed int)
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SCRAT_INTEGER(unsigned long)
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SCRAT_INTEGER(signed long)
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SCRAT_INTEGER(unsigned short)
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SCRAT_INTEGER(signed short)
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SCRAT_INTEGER(unsigned char)
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SCRAT_INTEGER(signed char)
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SCRAT_INTEGER(unsigned long long)
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SCRAT_INTEGER(signed long long)
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|
|
#ifdef _MSC_VER
|
|
#if defined(__int64)
|
|
SCRAT_INTEGER(unsigned __int64)
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|
SCRAT_INTEGER(signed __int64)
|
|
#endif
|
|
#endif
|
|
|
|
// Float types
|
|
#define SCRAT_FLOAT( type ) \
|
|
template<> \
|
|
struct Var<type> { \
|
|
type value; \
|
|
Var(HSQUIRRELVM vm, SQInteger idx) { \
|
|
value = popAsFloat<type>(vm, idx).value; \
|
|
} \
|
|
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) { \
|
|
value = popAsFloat<type>(vm, idx).value; \
|
|
} \
|
|
static void push(HSQUIRRELVM vm, const type& value) { \
|
|
sq_pushfloat(vm, static_cast<SQFloat>(value)); \
|
|
} \
|
|
};
|
|
|
|
SCRAT_FLOAT(float)
|
|
SCRAT_FLOAT(double)
|
|
|
|
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
/// Used to get and push bools to and from the stack
|
|
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
template<>
|
|
struct Var<bool> {
|
|
|
|
bool value; ///< The actual value of get operations
|
|
|
|
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
/// Attempts to get the value off the stack at idx as a bool
|
|
///
|
|
/// \param vm Target VM
|
|
/// \param idx Index trying to be read
|
|
///
|
|
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
Var(HSQUIRRELVM vm, SQInteger idx) {
|
|
SQBool sqValue;
|
|
sq_tobool(vm, idx, &sqValue);
|
|
value = (sqValue != 0);
|
|
}
|
|
|
|
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
/// Called by Sqrat::PushVar to put a bool on the stack
|
|
///
|
|
/// \param vm Target VM
|
|
/// \param value Value to push on to the VM's stack
|
|
///
|
|
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
static void push(HSQUIRRELVM vm, const bool& value) {
|
|
sq_pushbool(vm, static_cast<SQBool>(value));
|
|
}
|
|
};
|
|
|
|
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
/// Used to get and push const bool references to and from the stack
|
|
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
template<>
|
|
struct Var<const bool&> {
|
|
|
|
bool value; ///< The actual value of get operations
|
|
|
|
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
/// Attempts to get the value off the stack at idx as a bool
|
|
///
|
|
/// \param vm Target VM
|
|
/// \param idx Index trying to be read
|
|
///
|
|
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
Var(HSQUIRRELVM vm, SQInteger idx) {
|
|
SQBool sqValue;
|
|
sq_tobool(vm, idx, &sqValue);
|
|
value = (sqValue != 0);
|
|
}
|
|
|
|
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
/// Called by Sqrat::PushVar to put a bool on the stack
|
|
///
|
|
/// \param vm Target VM
|
|
/// \param value Value to push on to the VM's stack
|
|
///
|
|
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
static void push(HSQUIRRELVM vm, const bool& value) {
|
|
sq_pushbool(vm, static_cast<SQBool>(value));
|
|
}
|
|
};
|
|
|
|
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
/// Used to get and push SQChar arrays to and from the stack (usually is a char array)
|
|
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
template<>
|
|
struct Var<SQChar*> {
|
|
private:
|
|
|
|
HSQOBJECT obj; /* hold a reference to the object holding value during the Var struct lifetime*/
|
|
HSQUIRRELVM v;
|
|
|
|
public:
|
|
|
|
SQChar* value; ///< The actual value of get operations
|
|
SQInteger size; ///< The size of the obtained string
|
|
|
|
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
/// Attempts to get the value off the stack at idx as a character array
|
|
///
|
|
/// \param vm Target VM
|
|
/// \param idx Index trying to be read
|
|
///
|
|
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
Var(HSQUIRRELVM vm, SQInteger idx) {
|
|
sq_tostring(vm, idx);
|
|
sq_getstackobj(vm, -1, &obj);
|
|
sq_getstringandsize(vm, -1, (const SQChar**)&value, &size);
|
|
sq_addref(vm, &obj);
|
|
sq_pop(vm,1);
|
|
v = vm;
|
|
}
|
|
|
|
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
/// Destructor
|
|
///
|
|
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
~Var()
|
|
{
|
|
if(v && !sq_isnull(obj)) {
|
|
sq_release(v, &obj);
|
|
}
|
|
}
|
|
|
|
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
/// Called by Sqrat::PushVar to put a character array on the stack
|
|
///
|
|
/// \param vm Target VM
|
|
/// \param value Value to push on to the VM's stack
|
|
/// \param len Length of the string (defaults to finding the length by searching for a terminating null-character)
|
|
///
|
|
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
static void push(HSQUIRRELVM vm, const SQChar* value, SQInteger len = -1) {
|
|
sq_pushstring(vm, value, len);
|
|
}
|
|
};
|
|
|
|
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
/// Used to get and push const SQChar arrays to and from the stack (usually is a const char array)
|
|
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
template<>
|
|
struct Var<const SQChar*> {
|
|
private:
|
|
|
|
HSQOBJECT obj; /* hold a reference to the object holding value during the Var struct lifetime*/
|
|
HSQUIRRELVM v;
|
|
|
|
public:
|
|
|
|
const SQChar* value; ///< The actual value of get operations
|
|
SQInteger size; ///< The size of the obtained string
|
|
|
|
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
/// Attempts to get the value off the stack at idx as a character array
|
|
///
|
|
/// \param vm Target VM
|
|
/// \param idx Index trying to be read
|
|
///
|
|
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
Var(HSQUIRRELVM vm, SQInteger idx) {
|
|
sq_tostring(vm, idx);
|
|
sq_getstackobj(vm, -1, &obj);
|
|
sq_getstringandsize(vm, -1, &value, &size);
|
|
sq_addref(vm, &obj);
|
|
sq_pop(vm,1);
|
|
v = vm;
|
|
}
|
|
|
|
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
/// Destructor
|
|
///
|
|
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
~Var()
|
|
{
|
|
if(v && !sq_isnull(obj)) {
|
|
sq_release(v, &obj);
|
|
}
|
|
}
|
|
|
|
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
/// Called by Sqrat::PushVar to put a character array on the stack
|
|
///
|
|
/// \param vm Target VM
|
|
/// \param value Value to push on to the VM's stack
|
|
/// \param len Length of the string (defaults to finding the length by searching for a terminating null-character)
|
|
///
|
|
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
static void push(HSQUIRRELVM vm, const SQChar* value, SQInteger len = -1) {
|
|
sq_pushstring(vm, value, len);
|
|
}
|
|
};
|
|
|
|
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
/// Used to get and push strings to and from the stack (string is usually std::string)
|
|
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
template<>
|
|
struct Var<string> {
|
|
|
|
string value; ///< The actual value of get operations
|
|
|
|
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
/// Attempts to get the value off the stack at idx as a string
|
|
///
|
|
/// \param vm Target VM
|
|
/// \param idx Index trying to be read
|
|
///
|
|
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
Var(HSQUIRRELVM vm, SQInteger idx) {
|
|
const SQChar* ret;
|
|
SQInteger len;
|
|
sq_tostring(vm, idx);
|
|
sq_getstringandsize(vm, -1, &ret, &len);
|
|
value.assign(ret, len);
|
|
sq_pop(vm,1);
|
|
}
|
|
|
|
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
/// Called by Sqrat::PushVar to put a string on the stack
|
|
///
|
|
/// \param vm Target VM
|
|
/// \param value Value to push on to the VM's stack
|
|
///
|
|
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
static void push(HSQUIRRELVM vm, const string& value) {
|
|
sq_pushstring(vm, value.c_str(), value.size());
|
|
}
|
|
};
|
|
|
|
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
/// Used to get and push const string references to and from the stack as copies (strings are always copied)
|
|
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
template<>
|
|
struct Var<const string&> {
|
|
|
|
string value; ///< The actual value of get operations
|
|
|
|
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
/// Attempts to get the value off the stack at idx as a string
|
|
///
|
|
/// \param vm Target VM
|
|
/// \param idx Index trying to be read
|
|
///
|
|
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
Var(HSQUIRRELVM vm, SQInteger idx) {
|
|
const SQChar* ret;
|
|
SQInteger len;
|
|
sq_tostring(vm, idx);
|
|
sq_getstringandsize(vm, -1, &ret, &len);
|
|
value.assign(ret, len);
|
|
sq_pop(vm,1);
|
|
}
|
|
|
|
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
/// Called by Sqrat::PushVar to put a string on the stack
|
|
///
|
|
/// \param vm Target VM
|
|
/// \param value Value to push on to the VM's stack
|
|
///
|
|
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
static void push(HSQUIRRELVM vm, const string& value) {
|
|
sq_pushstring(vm, value.c_str(), value.size());
|
|
}
|
|
};
|
|
|
|
#ifdef SQUNICODE
|
|
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
/// Used to get and push std::string to and from the stack when SQChar is not char (must define SQUNICODE)
|
|
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
template<>
|
|
struct Var<std::string> {
|
|
|
|
std::string value; ///< The actual value of get operations
|
|
|
|
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
/// Attempts to get the value off the stack at idx as a string
|
|
///
|
|
/// \param vm Target VM
|
|
/// \param idx Index trying to be read
|
|
///
|
|
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
Var(HSQUIRRELVM vm, SQInteger idx) {
|
|
const SQChar* ret;
|
|
SQInteger len;
|
|
sq_tostring(vm, idx);
|
|
sq_getstringandsize(vm, -1, &ret, &len);
|
|
value = wstring_to_string(string(ret, len));
|
|
sq_pop(vm,1);
|
|
}
|
|
|
|
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
/// Called by Sqrat::PushVar to put a string on the stack
|
|
///
|
|
/// \param vm Target VM
|
|
/// \param value Value to push on to the VM's stack
|
|
///
|
|
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
static void push(HSQUIRRELVM vm, const std::string& value) {
|
|
std::wstring s = string_to_wstring(value);
|
|
sq_pushstring(vm, s.c_str(), s.size());
|
|
}
|
|
};
|
|
|
|
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
/// Used to get and push const std::string references to and from the stack when SQChar is not char (must define SQUNICODE)
|
|
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
template<>
|
|
struct Var<const std::string&> {
|
|
|
|
std::string value; ///< The actual value of get operations
|
|
|
|
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
/// Attempts to get the value off the stack at idx as a string
|
|
///
|
|
/// \param vm Target VM
|
|
/// \param idx Index trying to be read
|
|
///
|
|
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
Var(HSQUIRRELVM vm, SQInteger idx) {
|
|
const SQChar* ret;
|
|
SQInteger len;
|
|
sq_tostring(vm, idx);
|
|
sq_getstringandsize(vm, -1, &ret, &len);
|
|
value = wstring_to_string(string(ret, len));
|
|
sq_pop(vm,1);
|
|
}
|
|
|
|
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
/// Called by Sqrat::PushVar to put a string on the stack
|
|
///
|
|
/// \param vm Target VM
|
|
/// \param value Value to push on to the VM's stack
|
|
///
|
|
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
static void push(HSQUIRRELVM vm, const std::string& value) {
|
|
std::wstring s = string_to_wstring(value);
|
|
sq_pushstring(vm, s.c_str(), s.size());
|
|
}
|
|
};
|
|
|
|
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
/// Used to get and push SQChar arrays to and from the stack when SQChar is not char (must define SQUNICODE)
|
|
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
template<>
|
|
struct Var<char*> {
|
|
private:
|
|
|
|
HSQOBJECT obj;/* hold a reference to the object holding value during the Var struct lifetime*/
|
|
HSQUIRRELVM v;
|
|
|
|
public:
|
|
|
|
char* value; ///< The actual value of get operations
|
|
String::size_type size; ///< The size of the obtained string
|
|
|
|
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
/// Attempts to get the value off the stack at idx as a character array
|
|
///
|
|
/// \param vm Target VM
|
|
/// \param idx Index trying to be read
|
|
///
|
|
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
Var(HSQUIRRELVM vm, SQInteger idx) {
|
|
std::string holder;
|
|
const SQChar *sv;
|
|
SQInteger len;
|
|
sq_tostring(vm, idx);
|
|
sq_getstackobj(vm, -1, &obj);
|
|
sq_getstringandsize(vm, -1, &sv, &len);
|
|
sq_addref(vm, &obj);
|
|
sq_pop(vm,1);
|
|
v = vm;
|
|
holder = wstring_to_string(string(sv, len));
|
|
value = strdup(holder.c_str());
|
|
size = holder.size();
|
|
}
|
|
|
|
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
/// Destructor
|
|
///
|
|
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
~Var()
|
|
{
|
|
if(v && !sq_isnull(obj)) {
|
|
sq_release(v, &obj);
|
|
free(value);
|
|
}
|
|
}
|
|
|
|
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
/// Called by Sqrat::PushVar to put a character array on the stack
|
|
///
|
|
/// \param vm Target VM
|
|
/// \param value Value to push on to the VM's stack
|
|
/// \param len Length of the string (defaults to finding the length by searching for a terminating null-character)
|
|
///
|
|
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
static void push(HSQUIRRELVM vm, const char* value, SQInteger len = -1) {
|
|
sq_pushstring(vm, string_to_wstring(std::string(value)).c_str(), len);
|
|
}
|
|
};
|
|
|
|
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
/// Used to get and push const SQChar arrays to and from the stack when SQChar is not char (must define SQUNICODE)
|
|
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
template<>
|
|
struct Var<const char*> {
|
|
private:
|
|
|
|
HSQOBJECT obj; /* hold a reference to the object holding value during the Var struct lifetime*/
|
|
HSQUIRRELVM v;
|
|
|
|
public:
|
|
|
|
char* value; ///< The actual value of get operations
|
|
String::size_type size; ///< The size of the obtained string
|
|
|
|
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
/// Attempts to get the value off the stack at idx as a character array
|
|
///
|
|
/// \param vm Target VM
|
|
/// \param idx Index trying to be read
|
|
///
|
|
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
Var(HSQUIRRELVM vm, SQInteger idx) {
|
|
std::string holder;
|
|
const SQChar *sv;
|
|
SQInteger len;
|
|
sq_tostring(vm, idx);
|
|
sq_getstackobj(vm, -1, &obj);
|
|
sq_getstringandsize(vm, -1, &sv, &len);
|
|
sq_addref(vm, &obj);
|
|
sq_pop(vm,1);
|
|
v = vm;
|
|
holder = wstring_to_string(string(sv, len));
|
|
value = strdup(holder.c_str());
|
|
size = holder.size();
|
|
}
|
|
|
|
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
/// Destructor
|
|
///
|
|
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
~Var()
|
|
{
|
|
if(v && !sq_isnull(obj)) {
|
|
sq_release(v, &obj);
|
|
free(value);
|
|
}
|
|
}
|
|
|
|
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
/// Called by Sqrat::PushVar to put a character array on the stack
|
|
///
|
|
/// \param vm Target VM
|
|
/// \param value Value to push on to the VM's stack
|
|
/// \param len Length of the string (defaults to finding the length by searching for a terminating null-character)
|
|
///
|
|
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
static void push(HSQUIRRELVM vm, const char* value, SQInteger len = -1) {
|
|
sq_pushstring(vm, string_to_wstring(std::string(value)).c_str(), len);
|
|
}
|
|
};
|
|
#endif
|
|
|
|
|
|
// Non-referencable type definitions
|
|
template<class T> struct is_referencable {static const bool value = true;};
|
|
|
|
#define SCRAT_MAKE_NONREFERENCABLE( type ) \
|
|
template<> struct is_referencable<type> {static const bool value = false;};
|
|
|
|
SCRAT_MAKE_NONREFERENCABLE(unsigned int)
|
|
SCRAT_MAKE_NONREFERENCABLE(signed int)
|
|
SCRAT_MAKE_NONREFERENCABLE(unsigned long)
|
|
SCRAT_MAKE_NONREFERENCABLE(signed long)
|
|
SCRAT_MAKE_NONREFERENCABLE(unsigned short)
|
|
SCRAT_MAKE_NONREFERENCABLE(signed short)
|
|
SCRAT_MAKE_NONREFERENCABLE(unsigned char)
|
|
SCRAT_MAKE_NONREFERENCABLE(signed char)
|
|
SCRAT_MAKE_NONREFERENCABLE(unsigned long long)
|
|
SCRAT_MAKE_NONREFERENCABLE(signed long long)
|
|
SCRAT_MAKE_NONREFERENCABLE(float)
|
|
SCRAT_MAKE_NONREFERENCABLE(double)
|
|
SCRAT_MAKE_NONREFERENCABLE(bool)
|
|
SCRAT_MAKE_NONREFERENCABLE(string)
|
|
|
|
#ifdef _MSC_VER
|
|
#if defined(__int64)
|
|
SCRAT_MAKE_NONREFERENCABLE(unsigned __int64)
|
|
SCRAT_MAKE_NONREFERENCABLE(signed __int64)
|
|
#endif
|
|
#endif
|
|
|
|
#ifdef SQUNICODE
|
|
SCRAT_MAKE_NONREFERENCABLE(std::string)
|
|
#endif
|
|
|
|
|
|
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
/// Pushes a value on to a given VM's stack
|
|
///
|
|
/// \param vm VM that the variable will be pushed on to the stack of
|
|
/// \param value The actual value being pushed
|
|
///
|
|
/// \tparam T Type of value (usually doesnt need to be defined explicitly)
|
|
///
|
|
/// \remarks
|
|
/// What this function does is defined by Sqrat::Var template specializations,
|
|
/// and thus you can create custom functionality for it by making new template specializations.
|
|
/// When making a custom type that is not referencable, you must use SCRAT_MAKE_NONREFERENCABLE( type )
|
|
///
|
|
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
template<class T>
|
|
inline void PushVar(HSQUIRRELVM vm, T* value) {
|
|
Var<T*>::push(vm, value);
|
|
}
|
|
|
|
|
|
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
/// Pushes a value on to a given VM's stack
|
|
///
|
|
/// \param vm VM that the variable will be pushed on to the stack of
|
|
/// \param value The actual value being pushed
|
|
///
|
|
/// \tparam T Type of value (usually doesnt need to be defined explicitly)
|
|
///
|
|
/// \remarks
|
|
/// What this function does is defined by Sqrat::Var template specializations,
|
|
/// and thus you can create custom functionality for it by making new template specializations.
|
|
/// When making a custom type that is not referencable, you must use SCRAT_MAKE_NONREFERENCABLE( type )
|
|
///
|
|
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
template<class T>
|
|
inline void PushVar(HSQUIRRELVM vm, const T& value) {
|
|
Var<T>::push(vm, value);
|
|
}
|
|
|
|
|
|
/// @cond DEV
|
|
template<class T, bool b>
|
|
struct PushVarR_helper {
|
|
inline static void push(HSQUIRRELVM vm, T value) {
|
|
PushVar<T>(vm, value);
|
|
}
|
|
};
|
|
template<class T>
|
|
struct PushVarR_helper<T, false> {
|
|
inline static void push(HSQUIRRELVM vm, const T& value) {
|
|
PushVar<const T&>(vm, value);
|
|
}
|
|
};
|
|
/// @endcond
|
|
|
|
|
|
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
/// Pushes a reference on to a given VM's stack (some types cannot be referenced and will be copied instead)
|
|
///
|
|
/// \param vm VM that the reference will be pushed on to the stack of
|
|
/// \param value The actual referenced value being pushed
|
|
///
|
|
/// \tparam T Type of value (usually doesnt need to be defined explicitly)
|
|
///
|
|
/// \remarks
|
|
/// What this function does is defined by Sqrat::Var template specializations,
|
|
/// and thus you can create custom functionality for it by making new template specializations.
|
|
/// When making a custom type that is not referencable, you must use SCRAT_MAKE_NONREFERENCABLE( type )
|
|
///
|
|
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
template<class T>
|
|
inline void PushVarR(HSQUIRRELVM vm, T& value) {
|
|
if (!is_pointer<T>::value && is_referencable<typename remove_cv<T>::type>::value) {
|
|
Var<T&>::push(vm, value);
|
|
} else {
|
|
PushVarR_helper<T, is_pointer<T>::value>::push(vm, value);
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
#endif
|