/*
* 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.action.model.operations;
import com.jpexs.decompiler.flash.SourceGeneratorLocalData;
import com.jpexs.decompiler.flash.action.model.DirectValueActionItem;
import com.jpexs.decompiler.flash.action.model.GetMemberActionItem;
import com.jpexs.decompiler.flash.action.model.GetPropertyActionItem;
import com.jpexs.decompiler.flash.action.model.GetVariableActionItem;
import com.jpexs.decompiler.flash.action.parser.script.ActionSourceGenerator;
import com.jpexs.decompiler.flash.action.parser.script.VariableActionItem;
import com.jpexs.decompiler.flash.action.swf4.ActionPush;
import com.jpexs.decompiler.flash.action.swf4.ActionSetProperty;
import com.jpexs.decompiler.flash.action.swf4.ActionSetVariable;
import com.jpexs.decompiler.flash.action.swf4.RegisterNumber;
import com.jpexs.decompiler.flash.action.swf5.ActionIncrement;
import com.jpexs.decompiler.flash.action.swf5.ActionSetMember;
import com.jpexs.decompiler.flash.action.swf5.ActionStoreRegister;
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.UnaryOpItem;
import java.util.ArrayList;
import java.util.List;
/**
*
* @author JPEXS
*/
public class PreIncrementActionItem extends UnaryOpItem {
public PreIncrementActionItem(GraphSourceItem instruction, GraphSourceItem lineStartIns, GraphTargetItem object) {
super(instruction, lineStartIns, PRECEDENCE_UNARY, object, "++", "Number");
}
@Override
public Object getResult() {
return value.getResultAsNumber() + 1;
}
@Override
public List<GraphSourceItem> toSource(SourceGeneratorLocalData localData, SourceGenerator generator) throws CompilationException {
ActionSourceGenerator asGenerator = (ActionSourceGenerator) generator;
List<GraphSourceItem> ret = new ArrayList<>();
GraphTargetItem val = value;
if (val instanceof VariableActionItem) {
val = ((VariableActionItem) val).getBoxedValue();
}
if (val instanceof GetVariableActionItem) {
GetVariableActionItem gv = (GetVariableActionItem) val;
ret.addAll(gv.toSource(localData, generator));
ret.remove(ret.size() - 1); //ActionGetVariable
ret.addAll(gv.toSource(localData, generator));
ret.add(new ActionIncrement());
int tmpReg = asGenerator.getTempRegister(localData);
ret.add(new ActionStoreRegister(tmpReg));
ret.add(new ActionSetVariable());
ret.add(new ActionPush(new RegisterNumber(tmpReg)));
asGenerator.releaseTempRegister(localData, tmpReg);
} else if (val instanceof GetMemberActionItem) {
GetMemberActionItem mem = (GetMemberActionItem) val;
ret.addAll(mem.toSource(localData, generator));
ret.remove(ret.size() - 1); //ActionGetMember
ret.addAll(mem.toSource(localData, generator));
ret.add(new ActionIncrement());
int tmpReg = asGenerator.getTempRegister(localData);
ret.add(new ActionStoreRegister(tmpReg));
ret.add(new ActionSetMember());
ret.add(new ActionPush(new RegisterNumber(tmpReg)));
asGenerator.releaseTempRegister(localData, tmpReg);
} else if ((val instanceof DirectValueActionItem) && ((DirectValueActionItem) val).value instanceof RegisterNumber) {
RegisterNumber rn = (RegisterNumber) ((DirectValueActionItem) val).value;
ret.add(new ActionPush(new RegisterNumber(rn.number)));
ret.add(new ActionIncrement());
ret.add(new ActionStoreRegister(rn.number));
} else if (val instanceof GetPropertyActionItem) {
GetPropertyActionItem gp = (GetPropertyActionItem) val;
ret.addAll(gp.toSource(localData, generator)); // old value
ret.addAll(gp.toSource(localData, generator));
ret.remove(ret.size() - 1);
ret.addAll(gp.toSource(localData, generator));
ret.add(new ActionIncrement());
ret.add(new ActionSetProperty());
}
return ret;
}
@Override
public GraphTargetItem returnType() {
return value.returnType();
}
}