/*
* 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;
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.clauses.FilterAVM2Item;
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.TypeItem;
import com.jpexs.decompiler.graph.model.LocalData;
import java.util.List;
import java.util.Set;
/**
*
* @author JPEXS
*/
public class LocalRegAVM2Item extends AVM2Item {
public final int regIndex;
public GraphTargetItem computedValue;
private final Object computedResult;
private boolean isCT = false;
public LocalRegAVM2Item(GraphSourceItem instruction, GraphSourceItem lineStartIns, int regIndex, GraphTargetItem computedValue) {
super(instruction, lineStartIns, PRECEDENCE_PRIMARY);
this.regIndex = regIndex;
if (computedValue == null) {
computedResult = null;
} else if (computedValue.isCompileTime()) {
computedResult = computedValue.getResult();
isCT = true;
} else {
computedResult = null;
}
this.computedValue = computedValue;
}
@Override
public GraphTextWriter appendTo(GraphTextWriter writer, LocalData localData) throws InterruptedException {
if (computedValue instanceof FilterAVM2Item) {
return computedValue.toString(writer, localData);
}
String localName = localRegName(localData.localRegNames, regIndex);
getSrcData().localName = localName;
return writer.append(localName);
}
@Override
public GraphTargetItem getThroughRegister() {
if (computedValue == null) {
return this;
}
return computedValue.getThroughRegister();
}
@Override
public Object getResult() {
if (computedValue == null) {
return null;
}
return computedValue.getResult();
}
@Override
public Double getResultAsNumber() {
if (computedValue == null) {
return null;
}
return computedValue.getResultAsNumber();
}
@Override
public boolean isCompileTime(Set<GraphTargetItem> dependencies) {
return (computedValue instanceof UndefinedAVM2Item);
}
@Override
public boolean isConvertedCompileTime(Set<GraphTargetItem> dependencies) {
if (computedValue == null) {
return false;
}
return ((computedValue instanceof ThisAVM2Item) && computedValue.isConvertedCompileTime(dependencies));
}
@Override
public List<GraphSourceItem> toSource(SourceGeneratorLocalData localData, SourceGenerator generator) throws CompilationException {
AVM2Instruction ins;
switch (regIndex) {
case 0:
ins = new AVM2Instruction(0, AVM2Instructions.GetLocal0, null);
break;
case 1:
ins = new AVM2Instruction(0, AVM2Instructions.GetLocal1, null);
break;
case 2:
ins = new AVM2Instruction(0, AVM2Instructions.GetLocal2, null);
break;
case 3:
ins = new AVM2Instruction(0, AVM2Instructions.GetLocal3, null);
break;
default:
ins = new AVM2Instruction(0, AVM2Instructions.GetLocal, new int[]{regIndex});
break;
}
return toSourceMerge(localData, generator, ins);
}
@Override
public GraphTargetItem returnType() {
return TypeItem.UNBOUNDED;
}
@Override
public boolean hasReturnValue() {
return true;
}
@Override
public int hashCode() {
int hash = 3;
hash = 67 * hash + this.regIndex;
return hash;
}
@Override
public boolean equals(Object obj) {
if (obj == null) {
return false;
}
if (getClass() != obj.getClass()) {
return false;
}
final LocalRegAVM2Item other = (LocalRegAVM2Item) obj;
if (this.regIndex != other.regIndex) {
return false;
}
return true;
}
}