public Arguments(BuiltinCall activation)
{
this.activation = activation;
IScriptable parent = activation.ParentScope;
ParentScope = parent;
SetPrototype(ScriptableObject.GetObjectPrototype(parent));
args = activation.originalArgs;
lengthObj = (int)args.Length;
BuiltinFunction f = activation.function;
calleeObj = f;
Context.Versions version = f.LanguageVersion;
if (version <= Context.Versions.JS1_3 && version != Context.Versions.Default)
{
callerObj = null;
}
else
{
callerObj = UniqueTag.NotFound;
}
}
protected internal override object GetInstanceIdValue(int id)
{
switch (id)
{
case Id_callee:
return(calleeObj);
case Id_length:
return(lengthObj);
case Id_caller: {
object value = callerObj;
if (value == UniqueTag.NullValue)
{
value = null;
}
else if (value == null)
{
BuiltinCall caller = activation.parentActivationCall;
if (caller != null)
{
value = caller.Get("arguments", caller);
}
else
{
value = null;
}
}
return(value);
}
}
return(base.GetInstanceIdValue(id));
}
