/**
* Evaluates the expression, creating an array if the value @is unset.
*
* @param env the calling environment.
*
* @return the expression value.
*/
public override Value evalArray(Env env)
{
Value array = _expr.evalArray(env);
Value index = _index.eval(env);
return(array.getArray(index));
}
/**
* Evaluates the expression.
*
* @param env the calling environment.
*
* @return the expression value.
*/
public override Value evalArg(Env env, bool isTop)
{
if (isTop)
{
Value obj = _expr.evalArray(env);
return(obj.putVar());
}
else
{
// php/0d4e need to do a toValue()
Value obj = _expr.evalArray(env).toValue();
return(obj.getArgTail(env, isTop));
}
}