mirror of
https://git.huckle.dev/Huckles-Minecraft-Archive/jpexs-decompiler.git
synced 2026-05-30 11:57:00 +00:00
AS1/2: obfuscated function names inside quotes (TODO: enable quotes in compiler)
This commit is contained in:
Jindra Petřík
@@ -1,292 +1,309 @@
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/*
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* Copyright (C) 2010-2014 JPEXS
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
|
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package com.jpexs.decompiler.flash.action.model;
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import com.jpexs.decompiler.flash.SWF;
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import com.jpexs.decompiler.flash.SourceGeneratorLocalData;
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import com.jpexs.decompiler.flash.action.Action;
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import com.jpexs.decompiler.flash.action.parser.script.ActionSourceGenerator;
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import com.jpexs.decompiler.flash.action.parser.script.VariableActionItem;
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import com.jpexs.decompiler.flash.action.swf4.RegisterNumber;
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import com.jpexs.decompiler.flash.action.swf5.ActionDefineFunction;
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import com.jpexs.decompiler.flash.action.swf7.ActionDefineFunction2;
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import com.jpexs.decompiler.flash.helpers.GraphTextWriter;
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import com.jpexs.decompiler.graph.CompilationException;
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import com.jpexs.decompiler.graph.Graph;
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import com.jpexs.decompiler.graph.GraphSourceItem;
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import com.jpexs.decompiler.graph.GraphSourceItemPos;
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import com.jpexs.decompiler.graph.GraphTargetItem;
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import com.jpexs.decompiler.graph.SourceGenerator;
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import com.jpexs.decompiler.graph.model.LocalData;
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import com.jpexs.helpers.Helper;
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import java.util.ArrayList;
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import java.util.HashSet;
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import java.util.List;
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import java.util.Set;
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public class FunctionActionItem extends ActionItem {
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public List<GraphTargetItem> actions;
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public List<String> constants;
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public String functionName;
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public List<String> paramNames;
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public GraphTargetItem calculatedFunctionName;
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private int regStart;
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private List<VariableActionItem> variables;
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public static final int REGISTER_THIS = 1;
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public static final int REGISTER_ARGUMENTS = 2;
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public static final int REGISTER_SUPER = 3;
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public static final int REGISTER_ROOT = 4;
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public static final int REGISTER_PARENT = 5;
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public static final int REGISTER_GLOBAL = 6;
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@Override
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public List<GraphTargetItem> getAllSubItems() {
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List<GraphTargetItem> ret = new ArrayList<>();
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ret.addAll(actions);
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return ret;
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}
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public FunctionActionItem() {
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super(null, PRECEDENCE_PRIMARY);
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}
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public FunctionActionItem(GraphSourceItem instruction, String functionName, List<String> paramNames, List<GraphTargetItem> actions, List<String> constants, int regStart, List<VariableActionItem> variables) {
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super(instruction, PRECEDENCE_PRIMARY);
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this.actions = actions;
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this.constants = constants;
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this.functionName = functionName;
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this.paramNames = paramNames;
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this.regStart = regStart;
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this.variables = variables;
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}
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@Override
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public GraphTextWriter appendTo(GraphTextWriter writer, LocalData localData) throws InterruptedException {
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writer.append("function");
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if (calculatedFunctionName != null) {
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writer.append(" ");
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calculatedFunctionName.toStringNoQuotes(writer, localData);
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} else if (!functionName.isEmpty()) {
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writer.append(" ");
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writer.append(functionName);
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}
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writer.spaceBeforeCallParenthesies(paramNames.size());
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writer.append("(");
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for (int p = 0; p < paramNames.size(); p++) {
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if (p > 0) {
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writer.append(", ");
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}
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String pname = paramNames.get(p);
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if (pname == null || pname.isEmpty()) {
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pname = new RegisterNumber(regStart + p).translate();
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}
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writer.append(pname);
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}
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writer.append(")").startBlock();
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Graph.graphToString(actions, writer, localData);
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return writer.endBlock();
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}
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@Override
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public List<GraphSourceItemPos> getNeededSources() {
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List<GraphSourceItemPos> ret = super.getNeededSources();
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for (GraphTargetItem ti : actions) {
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ret.addAll(ti.getNeededSources());
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}
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return ret;
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}
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@Override
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public boolean needsSemicolon() {
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return false;
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}
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@Override
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public boolean isCompileTime(Set<GraphTargetItem> dependencies) {
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for (GraphTargetItem a : actions) {
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if (dependencies.contains(a)) {
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return false;
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}
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dependencies.add(a);
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if (!a.isCompileTime(dependencies)) {
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return false;
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}
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}
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return true;
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}
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@Override
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public Object getResult() {
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if (!actions.isEmpty()) {
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if (actions.get(actions.size() - 1) instanceof ReturnActionItem) {
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ReturnActionItem r = (ReturnActionItem) actions.get(actions.size() - 1);
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return r.value.getResult();
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}
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}
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return 0;
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}
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@Override
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public boolean needsNewLine() {
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return true;
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}
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@Override
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public List<GraphSourceItem> toSource(SourceGeneratorLocalData localData, SourceGenerator generator) throws CompilationException {
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Set<String> usedNames = new HashSet<>();
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for (VariableActionItem v : variables) {
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usedNames.add(v.getVariableName());
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}
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List<GraphSourceItem> ret = new ArrayList<>();
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ActionSourceGenerator asGenerator = (ActionSourceGenerator) generator;
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List<Integer> paramRegs = new ArrayList<>();
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SourceGeneratorLocalData localDataCopy = Helper.deepCopy(localData);
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localDataCopy.inFunction++;
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boolean preloadParentFlag = false;
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boolean preloadRootFlag = false;
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boolean preloadSuperFlag = false;
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boolean preloadArgumentsFlag = false;
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boolean preloadThisFlag = false;
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boolean preloadGlobalFlag = false;
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boolean suppressParentFlag = false;
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boolean suppressArgumentsFlag = false;
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boolean suppressThisFlag = false;
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boolean needsFun2 = false;
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List<String> registerNames = new ArrayList<>();
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registerNames.add("***** ZERO *****");
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if (usedNames.contains("this")) {
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needsFun2 = true;
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preloadThisFlag = true;
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registerNames.add("this");
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} else {
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suppressThisFlag = true;
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}
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if (usedNames.contains("arguments")) {
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preloadArgumentsFlag = true;
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needsFun2 = true;
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registerNames.add("arguments");
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} else {
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suppressArgumentsFlag = true;
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}
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if (usedNames.contains("super")) {
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preloadSuperFlag = true;
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needsFun2 = true;
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registerNames.add("super");
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}
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if (usedNames.contains("_root")) {
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preloadRootFlag = true;
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needsFun2 = true;
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registerNames.add("_root");
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}
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if (usedNames.contains("_parent")) {
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preloadParentFlag = true;
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needsFun2 = true;
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registerNames.add("_parent");
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} else {
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suppressParentFlag = true;
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}
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if (usedNames.contains("_global")) {
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needsFun2 = true;
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preloadGlobalFlag = true;
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registerNames.add("_global");
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}
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int preloadedNumber = registerNames.size();
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if (!paramNames.isEmpty()) {
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needsFun2 = true;
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}
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if (localData.inMethod) {
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needsFun2 = true;
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}
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if (localData.inFunction > 1) {
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needsFun2 = true;
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}
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if (needsFun2) {
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for (int i = 0; i < paramNames.size(); i++) {
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paramRegs.add(registerNames.size());
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registerNames.add(paramNames.get(i));
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}
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}
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if (actions != null && !actions.isEmpty()) {
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localDataCopy.inFunction++;
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for (VariableActionItem v : variables) {
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String varName = v.getVariableName();
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GraphTargetItem stored = v.getStoreValue();
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if (needsFun2) {
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if (v.isDefinition() && !registerNames.contains(varName)) {
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registerNames.add(varName);
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}
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}
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if (registerNames.contains(varName)) {
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if (stored != null) {
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v.setBoxedValue(new StoreRegisterActionItem(null, new RegisterNumber(registerNames.indexOf(varName), varName), stored, false));
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} else {
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v.setBoxedValue(new DirectValueActionItem(new RegisterNumber(registerNames.indexOf(varName), varName)));
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}
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} else {
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if (v.isDefinition()) {
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v.setBoxedValue(new DefineLocalActionItem(null, ((ActionSourceGenerator) generator).pushConstTargetItem(varName), stored));
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} else {
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if (stored != null) {
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v.setBoxedValue(new SetVariableActionItem(null, ((ActionSourceGenerator) generator).pushConstTargetItem(varName), stored));
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} else {
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v.setBoxedValue(new GetVariableActionItem(null, ((ActionSourceGenerator) generator).pushConstTargetItem(varName)));
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}
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}
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}
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}
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ret.addAll(asGenerator.toActionList(asGenerator.generate(localDataCopy, actions)));
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}
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int len = Action.actionsToBytes(asGenerator.toActionList(ret), false, SWF.DEFAULT_VERSION).length;
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if (!needsFun2 && paramNames.isEmpty()) {
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ret.add(0, new ActionDefineFunction(functionName, paramNames, len, SWF.DEFAULT_VERSION));
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} else {
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ret.add(0, new ActionDefineFunction2(functionName,
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preloadParentFlag,
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preloadRootFlag,
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suppressParentFlag,
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preloadSuperFlag,
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suppressArgumentsFlag,
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preloadArgumentsFlag,
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suppressThisFlag,
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preloadThisFlag,
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preloadGlobalFlag,
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registerNames.size(), len, SWF.DEFAULT_VERSION, paramNames, paramRegs));
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}
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return ret;
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}
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@Override
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public boolean hasReturnValue() {
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return false; //function actually returns itself, but here is false for generator to not add Pop
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}
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}
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/*
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* Copyright (C) 2010-2014 JPEXS
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
|
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
|
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package com.jpexs.decompiler.flash.action.model;
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import com.jpexs.decompiler.flash.SWF;
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import com.jpexs.decompiler.flash.SourceGeneratorLocalData;
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import com.jpexs.decompiler.flash.action.Action;
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import com.jpexs.decompiler.flash.action.Deobfuscation;
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import com.jpexs.decompiler.flash.action.parser.script.ActionSourceGenerator;
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import com.jpexs.decompiler.flash.action.parser.script.VariableActionItem;
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import com.jpexs.decompiler.flash.action.swf4.RegisterNumber;
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import com.jpexs.decompiler.flash.action.swf5.ActionDefineFunction;
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import com.jpexs.decompiler.flash.action.swf7.ActionDefineFunction2;
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import com.jpexs.decompiler.flash.helpers.GraphTextWriter;
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import com.jpexs.decompiler.graph.CompilationException;
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import com.jpexs.decompiler.graph.Graph;
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import com.jpexs.decompiler.graph.GraphSourceItem;
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import com.jpexs.decompiler.graph.GraphSourceItemPos;
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import com.jpexs.decompiler.graph.GraphTargetItem;
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import com.jpexs.decompiler.graph.SourceGenerator;
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import com.jpexs.decompiler.graph.model.LocalData;
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import com.jpexs.helpers.Helper;
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import java.util.ArrayList;
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import java.util.HashSet;
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import java.util.List;
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import java.util.Set;
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public class FunctionActionItem extends ActionItem {
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public List<GraphTargetItem> actions;
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public List<String> constants;
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public String functionName;
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public List<String> paramNames;
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public GraphTargetItem calculatedFunctionName;
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private int regStart;
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private List<VariableActionItem> variables;
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public static final int REGISTER_THIS = 1;
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public static final int REGISTER_ARGUMENTS = 2;
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public static final int REGISTER_SUPER = 3;
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public static final int REGISTER_ROOT = 4;
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public static final int REGISTER_PARENT = 5;
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public static final int REGISTER_GLOBAL = 6;
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@Override
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public List<GraphTargetItem> getAllSubItems() {
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List<GraphTargetItem> ret = new ArrayList<>();
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ret.addAll(actions);
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return ret;
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}
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public FunctionActionItem() {
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super(null, PRECEDENCE_PRIMARY);
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}
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public FunctionActionItem(GraphSourceItem instruction, String functionName, List<String> paramNames, List<GraphTargetItem> actions, List<String> constants, int regStart, List<VariableActionItem> variables) {
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super(instruction, PRECEDENCE_PRIMARY);
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this.actions = actions;
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this.constants = constants;
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this.functionName = functionName;
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this.paramNames = paramNames;
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this.regStart = regStart;
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this.variables = variables;
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}
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@Override
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public GraphTextWriter appendTo(GraphTextWriter writer, LocalData localData) throws InterruptedException {
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writer.append("function");
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if (calculatedFunctionName != null) {
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writer.append(" ");
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String fname = calculatedFunctionName.toStringNoQuotes(localData);
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if(!Deobfuscation.isValidName(fname)){
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calculatedFunctionName.appendTo(writer, localData); //Use quotes
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}else{
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calculatedFunctionName.appendToNoQuotes(writer, localData);
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}
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} else if (!functionName.isEmpty()) {
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writer.append(" ");
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if(!Deobfuscation.isValidName(functionName)){
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writer.append("\"");
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writer.append(Helper.escapeString(functionName));
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writer.append("\"");
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}else{
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writer.append(functionName);
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}
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}
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writer.spaceBeforeCallParenthesies(paramNames.size());
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writer.append("(");
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for (int p = 0; p < paramNames.size(); p++) {
|
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if (p > 0) {
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writer.append(", ");
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}
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||||
String pname = paramNames.get(p);
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if (pname == null || pname.isEmpty()) {
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pname = new RegisterNumber(regStart + p).translate();
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}
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||||
if(!Deobfuscation.isValidName(pname)){
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writer.append("\"");
|
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writer.append(Helper.escapeString(pname));
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writer.append("\"");
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||||
}
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||||
writer.append(pname);
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}
|
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writer.append(")").startBlock();
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Graph.graphToString(actions, writer, localData);
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||||
|
||||
return writer.endBlock();
|
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}
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||||
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@Override
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public List<GraphSourceItemPos> getNeededSources() {
|
||||
List<GraphSourceItemPos> ret = super.getNeededSources();
|
||||
for (GraphTargetItem ti : actions) {
|
||||
ret.addAll(ti.getNeededSources());
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
|
||||
@Override
|
||||
public boolean needsSemicolon() {
|
||||
return false;
|
||||
}
|
||||
|
||||
@Override
|
||||
public boolean isCompileTime(Set<GraphTargetItem> dependencies) {
|
||||
for (GraphTargetItem a : actions) {
|
||||
if (dependencies.contains(a)) {
|
||||
return false;
|
||||
}
|
||||
dependencies.add(a);
|
||||
if (!a.isCompileTime(dependencies)) {
|
||||
return false;
|
||||
}
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
@Override
|
||||
public Object getResult() {
|
||||
if (!actions.isEmpty()) {
|
||||
if (actions.get(actions.size() - 1) instanceof ReturnActionItem) {
|
||||
ReturnActionItem r = (ReturnActionItem) actions.get(actions.size() - 1);
|
||||
return r.value.getResult();
|
||||
}
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
@Override
|
||||
public boolean needsNewLine() {
|
||||
return true;
|
||||
}
|
||||
|
||||
@Override
|
||||
public List<GraphSourceItem> toSource(SourceGeneratorLocalData localData, SourceGenerator generator) throws CompilationException {
|
||||
|
||||
Set<String> usedNames = new HashSet<>();
|
||||
for (VariableActionItem v : variables) {
|
||||
usedNames.add(v.getVariableName());
|
||||
}
|
||||
|
||||
List<GraphSourceItem> ret = new ArrayList<>();
|
||||
ActionSourceGenerator asGenerator = (ActionSourceGenerator) generator;
|
||||
List<Integer> paramRegs = new ArrayList<>();
|
||||
SourceGeneratorLocalData localDataCopy = Helper.deepCopy(localData);
|
||||
localDataCopy.inFunction++;
|
||||
boolean preloadParentFlag = false;
|
||||
boolean preloadRootFlag = false;
|
||||
boolean preloadSuperFlag = false;
|
||||
boolean preloadArgumentsFlag = false;
|
||||
boolean preloadThisFlag = false;
|
||||
boolean preloadGlobalFlag = false;
|
||||
|
||||
boolean suppressParentFlag = false;
|
||||
boolean suppressArgumentsFlag = false;
|
||||
boolean suppressThisFlag = false;
|
||||
|
||||
boolean needsFun2 = false;
|
||||
|
||||
List<String> registerNames = new ArrayList<>();
|
||||
registerNames.add("***** ZERO *****");
|
||||
if (usedNames.contains("this")) {
|
||||
needsFun2 = true;
|
||||
preloadThisFlag = true;
|
||||
registerNames.add("this");
|
||||
} else {
|
||||
suppressThisFlag = true;
|
||||
}
|
||||
if (usedNames.contains("arguments")) {
|
||||
preloadArgumentsFlag = true;
|
||||
needsFun2 = true;
|
||||
registerNames.add("arguments");
|
||||
} else {
|
||||
suppressArgumentsFlag = true;
|
||||
}
|
||||
if (usedNames.contains("super")) {
|
||||
preloadSuperFlag = true;
|
||||
needsFun2 = true;
|
||||
registerNames.add("super");
|
||||
}
|
||||
if (usedNames.contains("_root")) {
|
||||
preloadRootFlag = true;
|
||||
needsFun2 = true;
|
||||
registerNames.add("_root");
|
||||
}
|
||||
if (usedNames.contains("_parent")) {
|
||||
preloadParentFlag = true;
|
||||
needsFun2 = true;
|
||||
registerNames.add("_parent");
|
||||
} else {
|
||||
suppressParentFlag = true;
|
||||
}
|
||||
if (usedNames.contains("_global")) {
|
||||
needsFun2 = true;
|
||||
preloadGlobalFlag = true;
|
||||
registerNames.add("_global");
|
||||
}
|
||||
|
||||
int preloadedNumber = registerNames.size();
|
||||
if (!paramNames.isEmpty()) {
|
||||
needsFun2 = true;
|
||||
}
|
||||
if (localData.inMethod) {
|
||||
needsFun2 = true;
|
||||
}
|
||||
if (localData.inFunction > 1) {
|
||||
needsFun2 = true;
|
||||
}
|
||||
if (needsFun2) {
|
||||
for (int i = 0; i < paramNames.size(); i++) {
|
||||
paramRegs.add(registerNames.size());
|
||||
registerNames.add(paramNames.get(i));
|
||||
}
|
||||
}
|
||||
|
||||
if (actions != null && !actions.isEmpty()) {
|
||||
localDataCopy.inFunction++;
|
||||
|
||||
for (VariableActionItem v : variables) {
|
||||
String varName = v.getVariableName();
|
||||
GraphTargetItem stored = v.getStoreValue();
|
||||
if (needsFun2) {
|
||||
if (v.isDefinition() && !registerNames.contains(varName)) {
|
||||
registerNames.add(varName);
|
||||
}
|
||||
}
|
||||
|
||||
if (registerNames.contains(varName)) {
|
||||
if (stored != null) {
|
||||
v.setBoxedValue(new StoreRegisterActionItem(null, new RegisterNumber(registerNames.indexOf(varName), varName), stored, false));
|
||||
} else {
|
||||
v.setBoxedValue(new DirectValueActionItem(new RegisterNumber(registerNames.indexOf(varName), varName)));
|
||||
}
|
||||
} else {
|
||||
if (v.isDefinition()) {
|
||||
v.setBoxedValue(new DefineLocalActionItem(null, ((ActionSourceGenerator) generator).pushConstTargetItem(varName), stored));
|
||||
} else {
|
||||
if (stored != null) {
|
||||
v.setBoxedValue(new SetVariableActionItem(null, ((ActionSourceGenerator) generator).pushConstTargetItem(varName), stored));
|
||||
} else {
|
||||
v.setBoxedValue(new GetVariableActionItem(null, ((ActionSourceGenerator) generator).pushConstTargetItem(varName)));
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
ret.addAll(asGenerator.toActionList(asGenerator.generate(localDataCopy, actions)));
|
||||
}
|
||||
int len = Action.actionsToBytes(asGenerator.toActionList(ret), false, SWF.DEFAULT_VERSION).length;
|
||||
if (!needsFun2 && paramNames.isEmpty()) {
|
||||
ret.add(0, new ActionDefineFunction(functionName, paramNames, len, SWF.DEFAULT_VERSION));
|
||||
} else {
|
||||
ret.add(0, new ActionDefineFunction2(functionName,
|
||||
preloadParentFlag,
|
||||
preloadRootFlag,
|
||||
suppressParentFlag,
|
||||
preloadSuperFlag,
|
||||
suppressArgumentsFlag,
|
||||
preloadArgumentsFlag,
|
||||
suppressThisFlag,
|
||||
preloadThisFlag,
|
||||
preloadGlobalFlag,
|
||||
registerNames.size(), len, SWF.DEFAULT_VERSION, paramNames, paramRegs));
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
@Override
|
||||
public boolean hasReturnValue() {
|
||||
return false; //function actually returns itself, but here is false for generator to not add Pop
|
||||
}
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user