/*
* Copyright (C) 2010-2016 JPEXS, All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3.0 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library.
*/
package com.jpexs.decompiler.flash.abc.avm2.model.operations;
import com.jpexs.decompiler.flash.SourceGeneratorLocalData;
import com.jpexs.decompiler.flash.abc.avm2.instructions.AVM2Instruction;
import com.jpexs.decompiler.flash.abc.avm2.instructions.AVM2Instructions;
import com.jpexs.decompiler.flash.abc.avm2.model.IntegerValueAVM2Item;
import com.jpexs.decompiler.flash.ecma.EcmaScript;
import com.jpexs.decompiler.flash.ecma.EcmaType;
import com.jpexs.decompiler.flash.helpers.GraphTextWriter;
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.model.BinaryOpItem;
import com.jpexs.decompiler.graph.model.LocalData;
import com.jpexs.decompiler.graph.model.UnboundedTypeItem;
import java.util.List;
/**
*
* @author JPEXS
*/
public class AddAVM2Item extends BinaryOpItem {
public AddAVM2Item(GraphSourceItem instruction, GraphSourceItem lineStartIns, GraphTargetItem leftSide, GraphTargetItem rightSide) {
super(instruction, lineStartIns, PRECEDENCE_ADDITIVE, leftSide, rightSide, "+", "", ""); //?
}
@Override
public GraphTextWriter appendTo(GraphTextWriter writer, LocalData localData) throws InterruptedException {
if (rightSide.getPrecedence() >= precedence) { //string + vs number +
if (leftSide.getPrecedence() > precedence) {
writer.append("(");
leftSide.toString(writer, localData);
writer.append(")");
} else {
leftSide.toString(writer, localData);
}
writer.append(" ");
writer.append(operator);
writer.append(" ");
writer.append("(");
rightSide.toString(writer, localData);
return writer.append(")");
} else {
return super.appendTo(writer, localData);
}
}
@Override
public Object getResult() {
Object leftResult = leftSide.getResult();
Object rightResult = rightSide.getResult();
leftResult = EcmaScript.toPrimitive(leftResult, "");
rightResult = EcmaScript.toPrimitive(rightResult, "");
if (EcmaScript.type(leftResult) == EcmaType.STRING || EcmaScript.type(rightResult) == EcmaType.STRING) {
return EcmaScript.toString(leftResult) + EcmaScript.toString(rightResult);
}
return EcmaScript.toNumber(leftResult) + EcmaScript.toNumber(rightResult);
}
@Override
public List<GraphSourceItem> toSource(SourceGeneratorLocalData localData, SourceGenerator generator) throws CompilationException {
if (rightSide instanceof IntegerValueAVM2Item) {
IntegerValueAVM2Item iv = (IntegerValueAVM2Item) rightSide;
if (iv.value == 1) {
return toSourceMerge(localData, generator, leftSide,
new AVM2Instruction(0, AVM2Instructions.Increment, null)
);
}
}
return toSourceMerge(localData, generator, leftSide, rightSide,
new AVM2Instruction(0, AVM2Instructions.Add, null)
);
}
@Override
public GraphTargetItem returnType() {
return new UnboundedTypeItem();
}
}