private JSValue deepGet(Context context, bool forWrite, int depth)
{
JSValue res = null;
var defsl = depth - definitionScopeLevel;
while (defsl > 0)
{
defsl--;
context = context._parent;
}
if (context != cacheContext || cacheRes == null)
{
if (lexicalScope)
{
if (context._variables == null || !context._variables.TryGetValue(name, out res))
{
return(JSValue.NotExists);
}
}
else
{
res = context.GetVariable(name, forWrite);
}
if ((!forWrite && IsDefined) ||
(res._attributes & JSValueAttributesInternal.SystemObject) == 0)
{
cacheContext = context;
cacheRes = res;
}
}
else
{
res = cacheRes;
}
if (forWrite && res.NeedClone)
{
res = context.GetVariable(name, forWrite);
cacheRes = res;
}
return(res);
}
internal protected override JSValue GetProperty(JSValue key, bool forWrite, PropertyScope memberScope)
{
if (memberScope < PropertyScope.Super && key._valueType != JSValueType.Symbol)
{
var nameStr = key.ToString();
var res = _context.GetVariable(nameStr, forWrite);
return(res);
}
return(base.GetProperty(key, forWrite, memberScope));
}
protected internal virtual JSValue GetVariable(string name, bool forWrite)
{
JSValue res = null;
bool fromProto = _variables == null || (!_variables.TryGetValue(name, out res) && (_parent != null));
if (fromProto)
{
res = _parent.GetVariable(name, forWrite);
}
if (res == null) // значит вышли из глобального контекста
{
if (_parent == null)
{
return(null);
}
else
{
if (forWrite)
{
res = new JSValue()
{
_valueType = JSValueType.NotExists
};
_variables[name] = res;
}
else
{
res = GlobalContext._globalPrototype.GetProperty(name, false, PropertyScope.Common);
if (res._valueType == JSValueType.NotExistsInObject)
{
res._valueType = JSValueType.NotExists;
}
}
}
}
else if (fromProto)
{
_objectSource = _parent._objectSource;
}
else
{
if (forWrite && res.NeedClone)
{
res = res.CloneImpl(false);
_variables[name] = res;
}
}
return(res);
}
internal JSValue Get(Context context, bool forWrite, int scopeLevel)
{
context._objectSource = null;
if (((definitionScopeLevel | scopeLevel) & int.MinValue) != 0)
{
return(context.GetVariable(name, forWrite));
}
if (context == cacheContext && !forWrite)
{
return(cacheRes);
}
return(deepGet(context, forWrite, scopeLevel));
}
