forked from 0ad/0ad
janwas
a69ac0dee9
- add convenience macros for config_db(CFG_GET_SYS_VAL) - VFSUtil::EnumDirEnts now uses flags instead of bool recursive - UNUSED() for params, UNUSED2 (<- need better name) for variables - config.h defines must be tested with #if (always defined) -> allows detecting misspellings thanks to compiler warnings - replace debug_assert(0) with debug_warn (its sole purpose) - replace ScriptingHost::ValueToInt et al with ToPrimitive - use nommgr.h to disable both mmgr and VC debug heap This was SVN commit r2585.
99 lines
2.2 KiB
C++
99 lines
2.2 KiB
C++
#ifndef _ps_scripting_JSMap_H
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#define _ps_scripting_JSMap_H
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/*
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A simple read-only JS wrapper for map types (STL associative containers).
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Has been tested with integer keys. Writeability shouldn't be all that hard
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to add, it's just not needed by the current users of the class.
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*/
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template <typename T, typename KeyType = typename T::key_type>
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class CJSMap
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{
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T *m_pInstance;
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JSObject *m_JSObject;
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typedef typename T::iterator iterator;
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static JSBool GetProperty( JSContext* cx, JSObject* obj, jsval id, jsval* vp )
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{
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CJSMap<T, KeyType> *object=ToNative<CJSMap<T, KeyType> >(cx, obj);
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T *pInstance = object->m_pInstance;
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KeyType key=ToPrimitive<KeyType>(id);
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iterator it;
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it=pInstance->find(key);
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if (it == pInstance->end())
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return JS_FALSE;
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*vp=OBJECT_TO_JSVAL(ToScript(it->second));
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return JS_TRUE;
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}
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static JSBool SetProperty( JSContext* UNUSED(cx), JSObject* UNUSED(obj), jsval UNUSED(id), jsval* UNUSED(vp) )
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{
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return JS_FALSE;
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}
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void CreateScriptObject()
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{
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if( !m_JSObject )
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{
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m_JSObject = JS_NewObject( g_ScriptingHost.GetContext(), &JSI_class, NULL, NULL );
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JS_AddRoot( g_ScriptingHost.GetContext(), (void*)&m_JSObject );
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JS_SetPrivate( g_ScriptingHost.GetContext(), m_JSObject, this );
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}
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}
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void ReleaseScriptObject()
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{
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if( m_JSObject )
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{
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JS_SetPrivate( g_ScriptingHost.GetContext(), m_JSObject, NULL );
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JS_RemoveRoot( g_ScriptingHost.GetContext(), &m_JSObject );
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m_JSObject = NULL;
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}
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}
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public:
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CJSMap(T* pInstance):
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m_pInstance(pInstance),
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m_JSObject(NULL)
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{
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}
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~CJSMap()
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{
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ReleaseScriptObject();
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}
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JSObject *GetScript()
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{
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if (!m_JSObject)
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CreateScriptObject();
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return m_JSObject;
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}
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static void ScriptingInit(const char *className)
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{
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JSI_class.name=className;
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g_ScriptingHost.DefineCustomObjectType(&JSI_class,
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NULL, 0, NULL, NULL, NULL, NULL);
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}
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// Needs to be public for ToScript/ToNative
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static JSClass JSI_class;
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};
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template<typename T, typename KeyType>
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JSClass CJSMap<T, KeyType>::JSI_class =
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{
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NULL, JSCLASS_HAS_PRIVATE,
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JS_PropertyStub, JS_PropertyStub,
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GetProperty, SetProperty,
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JS_EnumerateStub, JS_ResolveStub,
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JS_ConvertStub, JS_FinalizeStub,
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NULL, NULL, NULL, NULL
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};
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#endif // _ps_scripting_JSMap_H
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