/*
* 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.swf6;
import com.jpexs.decompiler.flash.BaseLocalData;
import com.jpexs.decompiler.flash.action.Action;
import com.jpexs.decompiler.flash.action.ActionScriptObject;
import com.jpexs.decompiler.flash.action.LocalDataArea;
import com.jpexs.decompiler.flash.action.model.operations.InstanceOfActionItem;
import com.jpexs.decompiler.flash.types.annotations.SWFVersion;
import com.jpexs.decompiler.graph.GraphSourceItem;
import com.jpexs.decompiler.graph.GraphTargetItem;
import com.jpexs.decompiler.graph.TranslateStack;
import java.util.HashMap;
import java.util.List;
/**
*
* @author JPEXS
*/
@SWFVersion(from = 6)
public class ActionInstanceOf extends Action {
public ActionInstanceOf() {
super(0x54, 0);
}
@Override
public String toString() {
return "InstanceOf";
}
public static boolean getInstanceOfResult(Object a, Object b) {
ActionScriptObject type = (ActionScriptObject) b;
ActionScriptObject obj = (ActionScriptObject) a;
ActionScriptObject pobj = obj;
if (pobj.getImplementsObjs().contains(type)) {
return true;
}
while (pobj.getExtendsObj() != null) {
if (pobj.getExtendsObj() == type) {
return true;
}
pobj = (ActionScriptObject) pobj.getExtendsObj();
if (pobj.getImplementsObjs().contains(type)) {
return true;
}
}
return false;
}
@Override
public boolean execute(LocalDataArea lda) {
if (lda.stack.size() < 2) {
return false;
}
Object type = lda.stack.pop();
Object obj = lda.stack.pop();
if (getInstanceOfResult(obj, type)) {
lda.stack.push(Boolean.TRUE);
} else {
lda.stack.push(Boolean.FALSE);
}
return true;
}
@Override
public void translate(GraphSourceItem lineStartAction, TranslateStack stack, List<GraphTargetItem> output, HashMap<Integer, String> regNames, HashMap<String, GraphTargetItem> variables, HashMap<String, GraphTargetItem> functions, int staticOperation, String path) {
GraphTargetItem a = stack.pop();
GraphTargetItem b = stack.pop();
stack.push(new InstanceOfActionItem(this, lineStartAction, b, a));
}
@Override
public int getStackPopCount(BaseLocalData localData, TranslateStack stack) {
return 2;
}
@Override
public int getStackPushCount(BaseLocalData localData, TranslateStack stack) {
return 1;
}
}