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/*******************************************************************************
 *
 *	Copyright (c) 2016 Fujitsu Services Ltd.
 *
 *	Author: Nick Battle
 *
 *	This file is part of VDMJ.
 *
 *	VDMJ 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 3 of the License, or
 *	(at your option) any later version.
 *
 *	VDMJ 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 VDMJ.  If not, see .
 *	SPDX-License-Identifier: GPL-3.0-or-later
 *
 ******************************************************************************/

package com.fujitsu.vdmj.po.patterns;

import java.util.List;
import java.util.Vector;

import com.fujitsu.vdmj.po.expressions.POExpression;
import com.fujitsu.vdmj.po.patterns.visitors.POBindVisitor;
import com.fujitsu.vdmj.pog.POContextStack;
import com.fujitsu.vdmj.pog.ProofObligationList;
import com.fujitsu.vdmj.typechecker.Environment;

public class POSetBind extends POBind
{
	private static final long serialVersionUID = 1L;
	public final POExpression set;

	public POSetBind(POPattern pattern, POExpression set)
	{
		super(pattern.location, pattern);
		this.set = set;
	}

	@Override
	public List getMultipleBindList()
	{
		POPatternList plist = new POPatternList();
		plist.add(pattern);
		List mblist = new Vector();
		mblist.add(new POMultipleSetBind(plist, set));
		return mblist;
	}

	@Override
	public String toString()
	{
		return pattern + " in set " + set;
	}

	@Override
	public ProofObligationList getProofObligations(POContextStack ctxt, Environment env)
	{
		return set.getProofObligations(ctxt, env);
	}

	@Override
	public  R apply(POBindVisitor visitor, S arg)
	{
		return visitor.caseSetBind(this, arg);
	}
}