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/*
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* Copyright 2000-2016 JetBrains s.r.o.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.jetbrains.java.decompiler.modules.decompiler.vars;
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import org.jetbrains.java.decompiler.main.collectors.VarNamesCollector;
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import org.jetbrains.java.decompiler.modules.decompiler.stats.RootStatement;
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import org.jetbrains.java.decompiler.modules.decompiler.stats.Statement;
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import org.jetbrains.java.decompiler.struct.StructMethod;
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import org.jetbrains.java.decompiler.struct.gen.MethodDescriptor;
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import org.jetbrains.java.decompiler.struct.gen.VarType;
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import org.jetbrains.java.decompiler.util.TextUtil;
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import java.util.*;
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import java.util.Map.Entry;
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public class VarProcessor {
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private final StructMethod method;
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private final MethodDescriptor methodDescriptor;
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private Map<VarVersionPair, String> mapVarNames = new HashMap<VarVersionPair, String>();
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private VarVersionsProcessor varVersions;
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private final Map<VarVersionPair, String> thisVars = new HashMap<VarVersionPair, String>();
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private final Set<VarVersionPair> externalVars = new HashSet<VarVersionPair>();
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public VarProcessor(StructMethod mt, MethodDescriptor md) {
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method = mt;
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methodDescriptor = md;
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}
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public void setVarVersions(RootStatement root) {
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varVersions = new VarVersionsProcessor(method, methodDescriptor);
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varVersions.setVarVersions(root);
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}
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public void setVarDefinitions(Statement root) {
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mapVarNames = new HashMap<VarVersionPair, String>();
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new VarDefinitionHelper(root, method, this).setVarDefinitions();
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}
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public void setDebugVarNames(Map<Integer, String> mapDebugVarNames) {
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if (varVersions == null) {
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return;
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}
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Map<Integer, Integer> mapOriginalVarIndices = varVersions.getMapOriginalVarIndices();
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List<VarVersionPair> listVars = new ArrayList<VarVersionPair>(mapVarNames.keySet());
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Collections.sort(listVars, (o1, o2) -> o1.var - o2.var);
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Map<String, Integer> mapNames = new HashMap<String, Integer>();
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for (VarVersionPair pair : listVars) {
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String name = mapVarNames.get(pair);
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Integer index = mapOriginalVarIndices.get(pair.var);
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if (index != null) {
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String debugName = mapDebugVarNames.get(index);
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if (debugName != null && TextUtil.isValidIdentifier(debugName, method.getClassStruct().getBytecodeVersion())) {
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name = debugName;
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}
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}
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Integer counter = mapNames.get(name);
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mapNames.put(name, counter == null ? counter = new Integer(0) : ++counter);
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if (counter > 0) {
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name += String.valueOf(counter);
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}
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mapVarNames.put(pair, name);
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}
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}
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public void refreshVarNames(VarNamesCollector vc) {
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Map<VarVersionPair, String> tempVarNames = new HashMap<VarVersionPair, String>(mapVarNames);
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for (Entry<VarVersionPair, String> ent : tempVarNames.entrySet()) {
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mapVarNames.put(ent.getKey(), vc.getFreeName(ent.getValue()));
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}
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}
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public VarType getVarType(VarVersionPair pair) {
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return varVersions == null ? null : varVersions.getVarType(pair);
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}
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public void setVarType(VarVersionPair pair, VarType type) {
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varVersions.setVarType(pair, type);
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}
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public String getVarName(VarVersionPair pair) {
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return mapVarNames == null ? null : mapVarNames.get(pair);
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}
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public void setVarName(VarVersionPair pair, String name) {
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mapVarNames.put(pair, name);
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}
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public int getVarFinal(VarVersionPair pair) {
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return varVersions == null ? VarTypeProcessor.VAR_FINAL : varVersions.getVarFinal(pair);
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}
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public void setVarFinal(VarVersionPair pair, int finalType) {
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varVersions.setVarFinal(pair, finalType);
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}
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public Map<VarVersionPair, String> getThisVars() {
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return thisVars;
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}
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public Set<VarVersionPair> getExternalVars() {
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return externalVars;
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}
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}
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