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| package com.jeantessier.diff; |
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| |
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| import java.util.*; |
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| |
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| import org.apache.log4j.*; |
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| |
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| import com.jeantessier.classreader.*; |
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| |
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| public class DifferencesFactory { |
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| private Classfile oldClass; |
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| private Classfile newClass; |
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| |
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| private DifferenceStrategy strategy; |
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| DifferencesFactory() {
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| this(new APIDifferenceStrategy(new CodeDifferenceStrategy()));
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| } |
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| public DifferencesFactory(DifferenceStrategy strategy) {
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| this.strategy = strategy;
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| } |
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| |
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| public Differences createProjectDifferences(String name, String oldVersion, PackageMapper oldPackages, String newVersion, PackageMapper newPackages) {
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| Logger.getLogger(getClass()).debug("Begin " + name + " (" + oldVersion + " -> " + newVersion + ")");
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| ProjectDifferences projectDifferences = new ProjectDifferences(name, oldVersion, newVersion);
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| Logger.getLogger(getClass()).debug(" Collecting packages ...");
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| Collection<String> packageNames = new TreeSet<String>();
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| packageNames.addAll(oldPackages.getPackageNames());
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| packageNames.addAll(newPackages.getPackageNames());
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| Logger.getLogger(getClass()).debug(" Diff'ing packages ...");
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| for (String packageName : packageNames) {
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| Map<String, Classfile> oldPackage = oldPackages.getPackage(packageName);
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| if (oldPackage == null) {
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| oldPackage = Collections.emptyMap();
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| } |
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| Map<String, Classfile> newPackage = newPackages.getPackage(packageName);
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| if (newPackage == null) {
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| newPackage = Collections.emptyMap();
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| } |
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| if (strategy.isPackageDifferent(oldPackage, newPackage)) {
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| projectDifferences.getPackageDifferences().add(createPackageDifferences(packageName, oldPackage, newPackage));
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| } |
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| } |
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| Logger.getLogger(getClass()).debug("End " + name + " (" + oldVersion + " -> " + newVersion + ")");
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| return projectDifferences;
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| } |
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| |
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| public Differences createPackageDifferences(String name, Map<String, Classfile> oldPackage, Map<String, Classfile> newPackage) {
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| Logger.getLogger(getClass()).debug("Begin " + name);
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| PackageDifferences packageDifferences = new PackageDifferences(name, oldPackage, newPackage);
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| if (oldPackage != null && !oldPackage.isEmpty() && newPackage != null && !newPackage.isEmpty()) {
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| Logger.getLogger(getClass()).debug(" Diff'ing classes ...");
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| Collection<String> classNames = new TreeSet<String>();
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| classNames.addAll(oldPackage.keySet());
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| classNames.addAll(newPackage.keySet());
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| |
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| for (String className : classNames) {
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| Classfile oldClass = oldPackage.get(className);
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| Classfile newClass = newPackage.get(className);
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| if (strategy.isClassDifferent(oldClass, newClass)) {
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| packageDifferences.getClassDifferences().add(createClassDifferences(className, oldClass, newClass));
|
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| } |
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| } |
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| |
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| Logger.getLogger(getClass()).debug(" " + name + " has " + packageDifferences.getClassDifferences().size() + " class(es) that changed.");
|
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| } |
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| Logger.getLogger(getClass()).debug("End " + name);
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| return packageDifferences;
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| } |
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| |
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| public Differences createClassDifferences(String name, Classfile oldClass, Classfile newClass) {
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| Logger.getLogger(getClass()).debug("Begin " + name);
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| |
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| ClassDifferences classDifferences;
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| if (((oldClass != null) && oldClass.isInterface()) || ((newClass != null) && newClass.isInterface())) {
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| classDifferences = new InterfaceDifferences(name, oldClass, newClass);
|
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| } else { |
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| classDifferences = new ClassDifferences(name, oldClass, newClass);
|
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| } |
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| |
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| if (!classDifferences.isRemoved() && !classDifferences.isNew() && strategy.isDeclarationModified(oldClass, newClass)) {
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| classDifferences.setDeclarationModified(true);
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| } |
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| Differences result = classDifferences;
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| this.oldClass = oldClass;
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| this.newClass = newClass;
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| if (oldClass != null && newClass != null) {
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| Logger.getLogger(getClass()).debug(" Collecting fields ...");
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| |
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| Map<String, String> fieldLevel = new TreeMap<String, String>();
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| for (Field_info field : oldClass.getAllFields()) {
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| fieldLevel.put(field.getName(), field.getFullSignature());
|
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| } |
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| for (Field_info field : newClass.getAllFields()) {
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| fieldLevel.put(field.getName(), field.getFullSignature());
|
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| } |
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| Logger.getLogger(getClass()).debug(" Diff'ing fields ...");
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| for (Map.Entry<String, String> fieldEntry : fieldLevel.entrySet()) {
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| Field_info oldField = oldClass.getField(fieldEntry.getKey());
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| Field_info newField = newClass.getField(fieldEntry.getKey());
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| |
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| if (strategy.isFieldDifferent(oldField, newField)) {
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1195
| classDifferences.getFeatureDifferences().add(createFeatureDifferences(fieldEntry.getValue(), oldField, newField));
|
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| } |
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| } |
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| Logger.getLogger(getClass()).debug(" Collecting methods ...");
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| Map<String, String> methodLevel = new TreeMap<String, String>();
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| for (Method_info method : oldClass.getAllMethods()) {
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| methodLevel.put(method.getSignature(), method.getFullSignature());
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| } |
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| for (Method_info method : newClass.getAllMethods()) {
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| methodLevel.put(method.getSignature(), method.getFullSignature());
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| } |
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| Logger.getLogger(getClass()).debug(" Diff'ing methods ...");
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| for (Map.Entry<String, String> methodEntry : methodLevel.entrySet()) {
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| Method_info oldMethod = oldClass.getMethod(methodEntry.getKey());
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| Method_info newMethod = newClass.getMethod(methodEntry.getKey());
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| |
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| if (strategy.isMethodDifferent(oldMethod, newMethod)) {
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| classDifferences.getFeatureDifferences().add(createFeatureDifferences(methodEntry.getValue(), oldMethod, newMethod));
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| } |
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| } |
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| Logger.getLogger(getClass()).debug(name + " has " + classDifferences.getFeatureDifferences().size() + " feature(s) that changed.");
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| |
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| if (oldClass.isDeprecated() != newClass.isDeprecated()) {
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| result = new DeprecatableDifferences(result, oldClass, newClass);
|
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| } |
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| } |
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| Logger.getLogger(getClass()).debug("End " + name);
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| return result;
|
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| } |
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| |
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1937
| public Differences createFeatureDifferences(String name, Feature_info oldFeature, Feature_info newFeature) {
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1937
| Logger.getLogger(getClass()).debug("Begin " + name);
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| |
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| FeatureDifferences featureDifferences;
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| if (oldFeature instanceof Field_info || newFeature instanceof Field_info) {
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| featureDifferences = new FieldDifferences(name, (Field_info) oldFeature, (Field_info) newFeature);
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| |
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| if (!featureDifferences.isRemoved() && !featureDifferences.isNew() && strategy.isConstantValueDifferent(((Field_info) oldFeature).getConstantValue(), ((Field_info) newFeature).getConstantValue())) {
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| ((FieldDifferences) featureDifferences).setConstantValueDifference(true);
|
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| } |
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| |
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| if (featureDifferences.isRemoved() && newClass.locateField(name) != null) {
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0
| featureDifferences.setInherited(true);
|
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| } |
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| } else { |
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| if (((oldFeature instanceof Method_info) && ((Method_info) oldFeature).isConstructor()) || ((newFeature instanceof Method_info) && ((Method_info) newFeature).isConstructor())) {
|
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| featureDifferences = new ConstructorDifferences(name, (Method_info) oldFeature, (Method_info) newFeature);
|
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| } else { |
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| featureDifferences = new MethodDifferences(name, (Method_info) oldFeature, (Method_info) newFeature);
|
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| } |
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| |
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| if (!featureDifferences.isRemoved() && !featureDifferences.isNew() && strategy.isCodeDifferent(((Method_info) oldFeature).getCode(), ((Method_info) newFeature).getCode())) {
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| ((CodeDifferences) featureDifferences).setCodeDifference(true);
|
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| } |
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| |
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742
| if (featureDifferences.isRemoved()) {
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| Method_info attempt = newClass.locateMethod(name);
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125
| if ((attempt != null) && (oldFeature.getClassfile().isInterface() == attempt.getClassfile().isInterface())) {
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0
| featureDifferences.setInherited(true);
|
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| } |
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| } |
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| } |
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| |
232 |
1937
| Differences result = featureDifferences;
|
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| |
234 |
1937
| if (oldFeature != null && newFeature != null) {
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975
| if (oldFeature.isDeprecated() != newFeature.isDeprecated()) {
|
236 |
396
| result = new DeprecatableDifferences(result, oldFeature, newFeature);
|
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| } |
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| } |
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| |
240 |
1937
| Logger.getLogger(getClass()).debug("End " + name);
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| |
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1937
| return result;
|
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| } |
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| } |