package luan.impl;


final class GetUpVar extends CodeImpl implements Expr {
	private final int index;

	GetUpVar(int index) {
		if( index < 0 )  throw new RuntimeException();
		this.index = index;
	}

	@Override public Object eval(LuanStateImpl luan) {
		return luan.closure().upValues()[index].get();
	}
}