jpexs-decompiler/src/com/jpexs/decompiler/flash/action/model/operations/LtActionItem.java

/*
 *  Copyright (C) 2010-2014 JPEXS
 * 
 *  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 3 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, see <http://www.gnu.org/licenses/>.
 */
package com.jpexs.decompiler.flash.action.model.operations;

import com.jpexs.decompiler.flash.SourceGeneratorLocalData;
import com.jpexs.decompiler.flash.action.Action;
import com.jpexs.decompiler.flash.action.parser.script.ActionSourceGenerator;
import com.jpexs.decompiler.flash.action.swf4.ActionLess;
import com.jpexs.decompiler.flash.action.swf5.ActionLess2;
import com.jpexs.decompiler.flash.ecma.EcmaScript;
import com.jpexs.decompiler.graph.CompilationException;
import com.jpexs.decompiler.graph.GraphSourceItem;
import com.jpexs.decompiler.graph.GraphTargetItem;
import com.jpexs.decompiler.graph.SourceGenerator;
import com.jpexs.decompiler.graph.TypeItem;
import com.jpexs.decompiler.graph.model.BinaryOpItem;
import com.jpexs.decompiler.graph.model.LogicalOpItem;
import java.util.List;

public class LtActionItem extends BinaryOpItem implements LogicalOpItem {

    boolean version2;

    public LtActionItem(GraphSourceItem instruction, GraphTargetItem leftSide, GraphTargetItem rightSide, boolean version2) {
        super(instruction, PRECEDENCE_RELATIONAL, leftSide, rightSide, "<");
        this.version2 = version2;
    }

    @Override
    public Object getResult() {
        if (version2) {
            return EcmaScript.compare(leftSide.getResult(), rightSide.getResult());
        } else {
            //For SWF 4 and older, it should return 1 or 0
            return Action.toFloatPoint(leftSide.getResult()) < Action.toFloatPoint(rightSide.getResult());
        }
    }

    @Override
    public GraphTargetItem invert() {
        return new GeActionItem(src, leftSide, rightSide, version2);
    }

    @Override
    public List<GraphSourceItem> toSource(SourceGeneratorLocalData localData, SourceGenerator generator) throws CompilationException {
        ActionSourceGenerator g = (ActionSourceGenerator)generator;
        return toSourceMerge(localData, generator, leftSide, rightSide, g.getSwfVersion()>=5?new ActionLess2():new ActionLess());
    }

    @Override
    public GraphTargetItem returnType() {
        return TypeItem.BOOLEAN;
    }
}