/*
 *	aegis - project change supervisor
 *	Copyright (C) 1995, 1996, 1999 Peter Miller;
 *	All rights reserved.
 *
 *	This program is free software; you can redistribute it and/or modify
 *	it under the terms of the GNU General Public License as published by
 *	the Free Software Foundation; either version 2 of the License, or
 *	(at your option) any later version.
 *
 *	This program is distributed in the hope that it will be useful,
 *	but WITHOUT ANY WARRANTY; without even the implied warranty of
 *	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *	GNU General Public License for more details.
 *
 *	You should have received a copy of the GNU General Public License
 *	along with this program; if not, write to the Free Software
 *	Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
 *
 * MANIFEST: functions to manipulate fstate valuess
 */

#include <aer/value/fstate.h>
#include <change/file.h>
#include <error.h>
#include <trace.h>


typedef struct rpt_value_fstate_ty rpt_value_fstate_ty;
struct rpt_value_fstate_ty
{
	RPT_VALUE
	change_ty	*cp;
	rpt_value_ty	*converted;
};


static void destruct _((rpt_value_ty *));

static void
destruct(vp)
	rpt_value_ty	*vp;
{
	rpt_value_fstate_ty *this;

	trace(("rpt_value_fstate::destruct(vp = %08lX)\n{\n"/*}*/, (long)vp));
	this = (rpt_value_fstate_ty *)vp;
	change_free(this->cp);
	if (this->converted)
		rpt_value_free(this->converted);
	trace((/*{*/"}\n"));
}


static void convert _((rpt_value_fstate_ty *));

static void
convert(this)
	rpt_value_fstate_ty *this;
{
	fstate		fstate_data;

	assert(!this->converted);
	fstate_data = change_fstate_get(this->cp);
	this->converted = fstate_src_list_type.convert(&fstate_data->src);
}


static rpt_value_ty *lookup _((rpt_value_ty *, rpt_value_ty *, int));

static rpt_value_ty *
lookup(vp, rhs, lval)
	rpt_value_ty	*vp;
	rpt_value_ty	*rhs;
	int		lval;
{
	rpt_value_fstate_ty *this;
	rpt_value_ty	*result;

	trace(("rpt_value_fstate::lookup(this = %08lX)\n{\n"/*}*/, (long)vp));
	this = (rpt_value_fstate_ty *)vp;
	if (!this->converted)
		convert(this);
	result = rpt_value_lookup(this->converted, rhs, lval);
	trace(("return %08lX;\n", (long)result));
	trace((/*{*/"}\n"));
	return result;
}


static rpt_value_ty *keys _((rpt_value_ty *));

static rpt_value_ty *
keys(vp)
	rpt_value_ty	*vp;
{
	rpt_value_fstate_ty *this;
	rpt_value_ty	*result;

	trace(("rpt_value_fstate::keys(this = %08lX)\n{\n"/*}*/, (long)vp));
	this = (rpt_value_fstate_ty *)vp;
	if (!this->converted)
		convert(this);
	result = rpt_value_keys(this->converted);
	trace(("return %08lX;\n", (long)result));
	trace((/*{*/"}\n"));
	return result;
}


static rpt_value_ty *count _((rpt_value_ty *));

static rpt_value_ty *
count(vp)
	rpt_value_ty	*vp;
{
	rpt_value_fstate_ty *this;
	rpt_value_ty	*result;

	trace(("rpt_value_fstate::count(this = %08lX)\n{\n"/*}*/, (long)vp));
	this = (rpt_value_fstate_ty *)vp;
	if (!this->converted)
		convert(this);
	result = rpt_value_count(this->converted);
	trace(("return %08lX;\n", (long)result));
	trace((/*{*/"}\n"));
	return result;
}


static char *type_of _((rpt_value_ty *));

static char *
type_of(vp)
	rpt_value_ty	*vp;
{
	rpt_value_fstate_ty *this;
	char		*result;

	trace(("rpt_value_fstate::type_of(this = %08lX)\n{\n"/*}*/, (long)vp));
	this = (rpt_value_fstate_ty *)vp;
	if (!this->converted)
		convert(this);
	result = rpt_value_typeof(this->converted);
	trace(("return \"%s\";\n", result));
	trace((/*{*/"}\n"));
	return result;
}


static rpt_value_ty *undefer _((rpt_value_ty *));

static rpt_value_ty *
undefer(vp)
	rpt_value_ty	*vp;
{
	rpt_value_fstate_ty *this;
	rpt_value_ty	*result;

	trace(("rpt_value_fstate::undefer(this = %08lX)\n{\n"/*}*/, (long)vp));
	this = (rpt_value_fstate_ty *)vp;
	if (!this->converted)
		convert(this);
	result = rpt_value_copy(this->converted);
	trace(("return \"%s\";\n", result));
	trace((/*{*/"}\n"));
	return result;
}


static rpt_value_method_ty method =
{
	sizeof(rpt_value_fstate_ty),
	"fstate",
	rpt_value_type_deferred,
	0, /* construct */
	destruct,
	0, /* arithmetic */
	0, /* stringize */
	0, /* booleanize */
	lookup,
	keys,
	count,
	type_of,
	undefer,
};


rpt_value_ty *
rpt_value_fstate(cp)
	change_ty	*cp;
{
	rpt_value_fstate_ty *this;

	this = (rpt_value_fstate_ty *)rpt_value_alloc(&method);
	this->cp = change_copy(cp);
	this->converted = 0;
	return (rpt_value_ty *)this;
}