/*
XOWA: the XOWA Offline Wiki Application
Copyright (C) 2012-2017 gnosygnu@gmail.com

XOWA is licensed under the terms of the General Public License (GPL) Version 3,
or alternatively under the terms of the Apache License Version 2.0.

You may use XOWA according to either of these licenses as is most appropriate
for your project on a case-by-case basis.

The terms of each license can be found in the source code repository:

GPLv3 License: https://github.com/gnosygnu/xowa/blob/master/LICENSE-GPLv3.txt
Apache License: https://github.com/gnosygnu/xowa/blob/master/LICENSE-APACHE2.txt
*/
package gplx.gfml; import gplx.*;
class GfmlVarTkn implements GfmlTkn {
	public int ObjType() {return GfmlObj_.Type_tkn;}
	public String Key() {return key;} private String key;
	public String Raw() {return GfmlTknAry_.XtoRaw(ary);}
	public String Val() {
		String s = ctx.Fetch_Val(varKey); if (s == null) return val;
		val = s;
		return val;
	}	String val;
	public GfmlBldrCmd Cmd_of_Tkn() {return GfmlBldrCmd_.Null;}
	public GfmlTkn[] SubTkns() {return ary;} GfmlTkn[] ary;
	public GfmlTkn MakeNew(String rawNew, String valNew) {throw Err_.new_invalid_op("makeNew cannot make copy of token with only raw").Args_add("key", key, "rawNew", rawNew, "valNew", valNew);}
	public String TknType() {return "evalTkn";}

	GfmlVarCtx ctx; String varKey;
	@gplx.Internal protected GfmlVarTkn(String key, GfmlTkn[] ary, GfmlVarCtx ctx, String varKey) {
		this.key = key; this.ary = ary;
		this.ctx = ctx; this.varKey = varKey;
		this.val = ctx.Fetch_Val(varKey);
	}
}
