/*
* 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.parser.script.AVM2SourceGenerator;
import com.jpexs.decompiler.flash.ecma.EcmaScript;
import com.jpexs.decompiler.flash.ecma.EcmaType;
import com.jpexs.decompiler.flash.ecma.ObjectType;
import com.jpexs.decompiler.flash.ecma.Undefined;
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.SimpleValue;
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 GetPropertyAVM2Item extends AVM2Item {
public GraphTargetItem object;
public GraphTargetItem propertyName;
@Override
public boolean isConvertedCompileTime(Set<GraphTargetItem> dependencies) {
if (object != null && object.isCompileTime() && (propertyName instanceof FullMultinameAVM2Item) && (((FullMultinameAVM2Item) propertyName).name != null) && (((FullMultinameAVM2Item) propertyName).name.isCompileTime()) && "constructor".equals(((FullMultinameAVM2Item) propertyName).name.getResult())) {
Object obj = object.getResult();
EcmaType t = EcmaScript.type(obj);
if (t != EcmaType.OBJECT) {
if (t.getClassName() != null) {
//Note: it's for toString only :-(
return true;
}
}
if (obj instanceof ObjectType) {
//Note: it's for toString only :-(
return true;
}
}
return isCompileTime(dependencies);
}
@Override
public boolean isCompileTime(Set<GraphTargetItem> dependencies) {
if ((object instanceof SimpleValue) && (((SimpleValue) object).isSimpleValue())) {
return true;
}
if (object instanceof NewArrayAVM2Item) {
if (((NewArrayAVM2Item) object).values.isEmpty()) {
return true;
}
}
if (object instanceof NewObjectAVM2Item) {
if (((NewObjectAVM2Item) object).pairs.isEmpty()) {
return true;
}
}
return false;
}
@Override
public String getResultAsString() {
if (object.isCompileTime() && (propertyName instanceof FullMultinameAVM2Item) && (((FullMultinameAVM2Item) propertyName).name.isCompileTime()) && "constructor".equals(((FullMultinameAVM2Item) propertyName).name.getResult())) {
Object obj = object.getResult();
EcmaType t = EcmaScript.type(obj);
if (t != EcmaType.OBJECT) {
if (t.getClassName() != null) {
return "[class " + t.getClassName() + "]";
}
}
if (obj instanceof ObjectType) {
return "[class " + ((ObjectType) obj).getTypeName() + "]";
}
}
return super.getResultAsString();
}
@Override
public Object getResult() {
Object ores = object.getResult();
EcmaType type = EcmaScript.type(ores);
if (type != EcmaType.OBJECT && (propertyName instanceof FullMultinameAVM2Item) && (((FullMultinameAVM2Item) propertyName).resolvedMultinameName != null)) {
return type.getProperty(ores, ((FullMultinameAVM2Item) propertyName).resolvedMultinameName);
}
if (object instanceof NewArrayAVM2Item) {
if (((NewArrayAVM2Item) object).values.isEmpty()) {
return Undefined.INSTANCE;
}
}
if (object instanceof NewObjectAVM2Item) {
if (((NewObjectAVM2Item) object).pairs.isEmpty()) {
return Undefined.INSTANCE;
}
}
return null;
}
public GetPropertyAVM2Item(GraphSourceItem instruction, GraphSourceItem lineStartIns, GraphTargetItem object, GraphTargetItem propertyName) {
super(instruction, lineStartIns, PRECEDENCE_PRIMARY);
this.object = object;
this.propertyName = propertyName;
}
@Override
public GraphTextWriter appendTo(GraphTextWriter writer, LocalData localData) throws InterruptedException {
return formatProperty(writer, object, propertyName, localData);
}
@Override
public List<GraphSourceItem> toSource(SourceGeneratorLocalData localData, SourceGenerator generator) throws CompilationException {
return toSourceMerge(localData, generator, object,
new AVM2Instruction(0, AVM2Instructions.GetProperty, new int[]{((AVM2SourceGenerator) generator).propertyName(propertyName)})
);
}
@Override
public GraphTargetItem returnType() {
return TypeItem.UNBOUNDED;
}
@Override
public boolean hasReturnValue() {
return true;
}
}