aec7ca0ce9
Fixes: https://github.com/supertuxkart/stk-code/issues/2528 Signed-off-by: Igor Gnatenko <i.gnatenko.brain@gmail.com>
164 lines
4.5 KiB
C++
164 lines
4.5 KiB
C++
/*
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AngelCode Scripting Library
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Copyright (c) 2003-2017 Andreas Jonsson
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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
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damages arising from the use of this software.
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Permission is granted to anyone to use this software for any
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purpose, including commercial applications, and to alter it and
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redistribute it freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you
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must not claim that you wrote the original software. If you use
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this software in a product, an acknowledgment in the product
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documentation would be appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and
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must not be misrepresented as being the original software.
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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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The original version of this library can be located at:
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http://www.angelcode.com/angelscript/
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Andreas Jonsson
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andreas@angelcode.com
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*/
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//
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// as_scriptobject.h
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//
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// A generic class for handling script declared structures
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//
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#ifndef AS_SCRIPTOBJECT_H
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#define AS_SCRIPTOBJECT_H
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#include "as_config.h"
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#include "as_atomic.h"
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BEGIN_AS_NAMESPACE
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class asCObjectType;
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// TODO: Add const overload for GetAddressOfProperty
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// TODO: weak: Should move to its own file
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class asCLockableSharedBool : public asILockableSharedBool
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{
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public:
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asCLockableSharedBool();
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int AddRef() const;
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int Release() const;
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bool Get() const;
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void Set(bool);
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void Lock() const;
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void Unlock() const;
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protected:
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mutable asCAtomic refCount;
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bool value;
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DECLARECRITICALSECTION(mutable lock)
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};
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class asCScriptObject : public asIScriptObject
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{
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public:
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//===================================
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// From asIScriptObject
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//===================================
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// Memory management
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int AddRef() const;
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int Release() const;
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asILockableSharedBool *GetWeakRefFlag() const;
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// Type info
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int GetTypeId() const;
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asITypeInfo *GetObjectType() const;
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// Class properties
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asUINT GetPropertyCount() const;
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int GetPropertyTypeId(asUINT prop) const;
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const char *GetPropertyName(asUINT prop) const;
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void *GetAddressOfProperty(asUINT prop);
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// Miscellaneous
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asIScriptEngine *GetEngine() const;
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int CopyFrom(asIScriptObject *other);
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// User data
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void *SetUserData(void *data, asPWORD type = 0);
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void *GetUserData(asPWORD type = 0) const;
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//====================================
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// Internal
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//====================================
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asCScriptObject(asCObjectType *objType, bool doInitialize = true);
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virtual ~asCScriptObject();
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asCScriptObject &operator=(const asCScriptObject &other);
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// GC methods
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void Destruct();
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int GetRefCount();
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void SetFlag();
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bool GetFlag();
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void EnumReferences(asIScriptEngine *engine);
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void ReleaseAllHandles(asIScriptEngine *engine);
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// Used for properties
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void *AllocateUninitializedObject(asCObjectType *objType, asCScriptEngine *engine);
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void FreeObject(void *ptr, asCObjectType *objType, asCScriptEngine *engine);
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void CopyObject(void *src, void *dst, asCObjectType *objType, asCScriptEngine *engine);
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void CopyHandle(asPWORD *src, asPWORD *dst, asCObjectType *objType, asCScriptEngine *engine);
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void CallDestructor();
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//=============================================
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// Properties
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//=============================================
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protected:
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friend class asCContext;
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asCObjectType *objType;
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mutable asCAtomic refCount;
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mutable asBYTE gcFlag:1;
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mutable asBYTE hasRefCountReachedZero:1;
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bool isDestructCalled;
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// Most script classes instances won't have neither the weakRefFlags nor
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// userData so we only allocate this if requested. Even when used it is
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// not something that will be accessed all the time so having the extra
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// indirection will not affect the performance significantly.
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struct SExtra
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{
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SExtra() : weakRefFlag(0) {};
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asCLockableSharedBool *weakRefFlag;
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asCArray<asPWORD> userData;
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};
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mutable SExtra *extra;
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};
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void ScriptObject_Construct(asCObjectType *objType, asCScriptObject *self);
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asCScriptObject &ScriptObject_Assignment(asCScriptObject *other, asCScriptObject *self);
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void ScriptObject_ConstructUnitialized(asCObjectType *objType, asCScriptObject *self);
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void RegisterScriptObject(asCScriptEngine *engine);
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asIScriptObject *ScriptObjectFactory(const asCObjectType *objType, asCScriptEngine *engine);
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END_AS_NAMESPACE
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#endif
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