001/**
002 *
003 * Copyright (c) 2014, the Railo Company Ltd. All rights reserved.
004 *
005 * This library is free software; you can redistribute it and/or
006 * modify it under the terms of the GNU Lesser General Public
007 * License as published by the Free Software Foundation; either 
008 * version 2.1 of the License, or (at your option) any later version.
009 * 
010 * This library is distributed in the hope that it will be useful,
011 * but WITHOUT ANY WARRANTY; without even the implied warranty of
012 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
013 * Lesser General Public License for more details.
014 * 
015 * You should have received a copy of the GNU Lesser General Public 
016 * License along with this library.  If not, see <http://www.gnu.org/licenses/>.
017 * 
018 **/
019package lucee.runtime.interpreter.ref.var;
020
021import lucee.runtime.PageContext;
022import lucee.runtime.exp.ExpressionException;
023import lucee.runtime.exp.PageException;
024import lucee.runtime.interpreter.InterpreterException;
025import lucee.runtime.interpreter.ref.Ref;
026import lucee.runtime.interpreter.ref.RefSupport;
027import lucee.runtime.interpreter.ref.Set;
028
029public final class Assign extends RefSupport implements Ref {
030        
031        private Ref value;
032        private Set coll;
033        private final boolean limited;
034
035
036    public Assign(Ref coll, Ref value, boolean limited) throws ExpressionException {
037        if(!(coll instanceof Set))
038                throw new InterpreterException("invalid assignment left-hand side ("+coll.getTypeName()+")");
039        this.coll=(Set) coll;
040        this.value=value;
041        this.limited=limited;
042    }
043
044    public Assign(Set coll, Ref value, boolean limited) {
045        this.coll=coll;
046        this.value=value;
047        this.limited=limited;
048    }
049        
050    @Override
051    public Object getValue(PageContext pc) throws PageException {
052        if(limited) throw new InterpreterException("invalid syntax, variables are not supported in a json string.");
053        return coll.setValue(pc,value.getValue(pc));
054        }
055
056    @Override
057    public String getTypeName() {
058                return "operation";
059        }
060}