X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=src%2Forg%2Feclipse%2Fjdt%2Finternal%2Fcompiler%2Fclassfmt%2FClassFileReader.java;fp=src%2Forg%2Feclipse%2Fjdt%2Finternal%2Fcompiler%2Fclassfmt%2FClassFileReader.java;h=0000000000000000000000000000000000000000;hb=6f0cd02d46e011bd5599e1b7fefc6159cb811135;hp=6899fa0631d8a4f491fdf55be54c5acc2aa22652;hpb=622d0e5a4b1b35b6918a516a79a0cc22272a919e;p=org.ibex.tool.git
diff --git a/src/org/eclipse/jdt/internal/compiler/classfmt/ClassFileReader.java b/src/org/eclipse/jdt/internal/compiler/classfmt/ClassFileReader.java
deleted file mode 100644
index 6899fa0..0000000
--- a/src/org/eclipse/jdt/internal/compiler/classfmt/ClassFileReader.java
+++ /dev/null
@@ -1,824 +0,0 @@
-/*******************************************************************************
- * Copyright (c) 2000, 2004 IBM Corporation and others.
- * All rights reserved. This program and the accompanying materials
- * are made available under the terms of the Common Public License v1.0
- * which accompanies this distribution, and is available at
- * http://www.eclipse.org/legal/cpl-v10.html
- *
- * Contributors:
- * IBM Corporation - initial API and implementation
- *******************************************************************************/
-package org.eclipse.jdt.internal.compiler.classfmt;
-
-import java.io.File;
-import java.io.IOException;
-import java.util.Arrays;
-
-import org.eclipse.jdt.core.compiler.CharOperation;
-import org.eclipse.jdt.internal.compiler.codegen.AttributeNamesConstants;
-import org.eclipse.jdt.internal.compiler.env.*;
-import org.eclipse.jdt.internal.compiler.impl.Constant;
-import org.eclipse.jdt.internal.compiler.lookup.TypeIds;
-import org.eclipse.jdt.internal.compiler.util.Util;
-
-public class ClassFileReader extends ClassFileStruct implements AttributeNamesConstants, IBinaryType {
- private int constantPoolCount;
- private int[] constantPoolOffsets;
- private long version;
- private int accessFlags;
- private char[] className;
- private char[] superclassName;
- private int interfacesCount;
- private char[][] interfaceNames;
- private int fieldsCount;
- private FieldInfo[] fields;
- private int methodsCount;
- private MethodInfo[] methods;
- private InnerClassInfo[] innerInfos;
- private char[] sourceFileName;
- // initialized in case the .class file is a nested type
- private InnerClassInfo innerInfo;
- private char[] classFileName;
- private int classNameIndex;
- private int innerInfoIndex;
-/**
- * @param classFileBytes byte[]
- * Actual bytes of a .class file
- *
- * @param fileName char[]
- * Actual name of the file that contains the bytes, can be null
- *
- * @param fullyInitialize boolean
- * Flag to fully initialize the new object
- * @exception ClassFormatException
- */
-public ClassFileReader(byte[] classFileBytes, char[] fileName, boolean fullyInitialize) throws ClassFormatException {
- // This method looks ugly but is actually quite simple, the constantPool is constructed
- // in 3 passes. All non-primitive constant pool members that usually refer to other members
- // by index are tweaked to have their value in inst vars, this minor cost at read-time makes
- // all subsequent uses of the constant pool element faster.
- super(classFileBytes, 0);
- this.classFileName = fileName;
- int readOffset = 10;
- try {
- this.version = ((long)this.u2At(6) << 16) + this.u2At(4); // major<<16 + minor
- constantPoolCount = this.u2At(8);
- // Pass #1 - Fill in all primitive constants
- this.constantPoolOffsets = new int[constantPoolCount];
- for (int i = 1; i < constantPoolCount; i++) {
- int tag = this.u1At(readOffset);
- switch (tag) {
- case Utf8Tag :
- this.constantPoolOffsets[i] = readOffset;
- readOffset += u2At(readOffset + 1);
- readOffset += ConstantUtf8FixedSize;
- break;
- case IntegerTag :
- this.constantPoolOffsets[i] = readOffset;
- readOffset += ConstantIntegerFixedSize;
- break;
- case FloatTag :
- this.constantPoolOffsets[i] = readOffset;
- readOffset += ConstantFloatFixedSize;
- break;
- case LongTag :
- this.constantPoolOffsets[i] = readOffset;
- readOffset += ConstantLongFixedSize;
- i++;
- break;
- case DoubleTag :
- this.constantPoolOffsets[i] = readOffset;
- readOffset += ConstantDoubleFixedSize;
- i++;
- break;
- case ClassTag :
- this.constantPoolOffsets[i] = readOffset;
- readOffset += ConstantClassFixedSize;
- break;
- case StringTag :
- this.constantPoolOffsets[i] = readOffset;
- readOffset += ConstantStringFixedSize;
- break;
- case FieldRefTag :
- this.constantPoolOffsets[i] = readOffset;
- readOffset += ConstantFieldRefFixedSize;
- break;
- case MethodRefTag :
- this.constantPoolOffsets[i] = readOffset;
- readOffset += ConstantMethodRefFixedSize;
- break;
- case InterfaceMethodRefTag :
- this.constantPoolOffsets[i] = readOffset;
- readOffset += ConstantInterfaceMethodRefFixedSize;
- break;
- case NameAndTypeTag :
- this.constantPoolOffsets[i] = readOffset;
- readOffset += ConstantNameAndTypeFixedSize;
- }
- }
- // Read and validate access flags
- this.accessFlags = u2At(readOffset);
- readOffset += 2;
-
- // Read the classname, use exception handlers to catch bad format
- this.classNameIndex = u2At(readOffset);
- this.className = getConstantClassNameAt(this.classNameIndex);
- readOffset += 2;
-
- // Read the superclass name, can be null for java.lang.Object
- int superclassNameIndex = u2At(readOffset);
- readOffset += 2;
- // if superclassNameIndex is equals to 0 there is no need to set a value for the
- // field this.superclassName. null is fine.
- if (superclassNameIndex != 0) {
- this.superclassName = getConstantClassNameAt(superclassNameIndex);
- }
-
- // Read the interfaces, use exception handlers to catch bad format
- this.interfacesCount = u2At(readOffset);
- readOffset += 2;
- if (this.interfacesCount != 0) {
- this.interfaceNames = new char[this.interfacesCount][];
- for (int i = 0; i < this.interfacesCount; i++) {
- this.interfaceNames[i] = getConstantClassNameAt(u2At(readOffset));
- readOffset += 2;
- }
- }
- // Read the this.fields, use exception handlers to catch bad format
- this.fieldsCount = u2At(readOffset);
- readOffset += 2;
- if (this.fieldsCount != 0) {
- FieldInfo field;
- this.fields = new FieldInfo[this.fieldsCount];
- for (int i = 0; i < this.fieldsCount; i++) {
- field = new FieldInfo(reference, this.constantPoolOffsets, readOffset);
- this.fields[i] = field;
- readOffset += field.sizeInBytes();
- }
- }
- // Read the this.methods
- this.methodsCount = u2At(readOffset);
- readOffset += 2;
- if (this.methodsCount != 0) {
- this.methods = new MethodInfo[this.methodsCount];
- MethodInfo method;
- for (int i = 0; i < this.methodsCount; i++) {
- method = new MethodInfo(reference, this.constantPoolOffsets, readOffset);
- this.methods[i] = method;
- readOffset += method.sizeInBytes();
- }
- }
-
- // Read the attributes
- int attributesCount = u2At(readOffset);
- readOffset += 2;
-
- for (int i = 0; i < attributesCount; i++) {
- int utf8Offset = this.constantPoolOffsets[u2At(readOffset)];
- char[] attributeName = utf8At(utf8Offset + 3, u2At(utf8Offset + 1));
- if (CharOperation.equals(attributeName, DeprecatedName)) {
- this.accessFlags |= AccDeprecated;
- } else {
- if (CharOperation.equals(attributeName, InnerClassName)) {
- int innerOffset = readOffset + 6;
- int number_of_classes = u2At(innerOffset);
- if (number_of_classes != 0) {
- innerOffset+= 2;
- this.innerInfos = new InnerClassInfo[number_of_classes];
- for (int j = 0; j < number_of_classes; j++) {
- this.innerInfos[j] =
- new InnerClassInfo(reference, this.constantPoolOffsets, innerOffset);
- if (this.classNameIndex == this.innerInfos[j].innerClassNameIndex) {
- this.innerInfo = this.innerInfos[j];
- this.innerInfoIndex = j;
- }
- innerOffset += 8;
- }
- }
- } else {
- if (CharOperation.equals(attributeName, SourceName)) {
- utf8Offset = this.constantPoolOffsets[u2At(readOffset + 6)];
- this.sourceFileName = utf8At(utf8Offset + 3, u2At(utf8Offset + 1));
- } else {
- if (CharOperation.equals(attributeName, SyntheticName)) {
- this.accessFlags |= AccSynthetic;
- }
- }
- }
- }
- readOffset += (6 + u4At(readOffset + 2));
- }
- if (fullyInitialize) {
- this.initialize();
- }
- } catch(ClassFormatException e) {
- throw e;
- } catch (Exception e) {
- throw new ClassFormatException(
- ClassFormatException.ErrTruncatedInput,
- readOffset);
- }
-}
-
-/**
- * @param classFileBytes Actual bytes of a .class file
- * @param fileName Actual name of the file that contains the bytes, can be null
- *
- * @exception ClassFormatException
- */
-public ClassFileReader(byte classFileBytes[], char[] fileName) throws ClassFormatException {
- this(classFileBytes, fileName, false);
-}
-
-/**
- * Answer the receiver's access flags. The value of the access_flags
- * item is a mask of modifiers used with class and interface declarations.
- * @return int
- */
-public int accessFlags() {
- return this.accessFlags;
-}
-/**
- * Answer the char array that corresponds to the class name of the constant class.
- * constantPoolIndex is the index in the constant pool that is a constant class entry.
- *
- * @param constantPoolIndex int
- * @return char[]
- */
-private char[] getConstantClassNameAt(int constantPoolIndex) {
- int utf8Offset = this.constantPoolOffsets[u2At(this.constantPoolOffsets[constantPoolIndex] + 1)];
- return utf8At(utf8Offset + 3, u2At(utf8Offset + 1));
-}
-/**
- * Answer the int array that corresponds to all the offsets of each entry in the constant pool
- *
- * @return int[]
- */
-public int[] getConstantPoolOffsets() {
- return this.constantPoolOffsets;
-}
-/*
- * Answer the resolved compoundName of the enclosing type
- * or null if the receiver is a top level type.
- */
-public char[] getEnclosingTypeName() {
- if (this.innerInfo != null && !this.isAnonymous()) {
- return this.innerInfo.getEnclosingTypeName();
- }
- return null;
-}
-/**
- * Answer the receiver's this.fields or null if the array is empty.
- * @return org.eclipse.jdt.internal.compiler.api.IBinaryField[]
- */
-public IBinaryField[] getFields() {
- return this.fields;
-}
-/**
- * Answer the file name which defines the type.
- * The format is unspecified.
- */
-public char[] getFileName() {
- return this.classFileName;
-}
-/**
- * Answer the source name if the receiver is a inner type. Return null if it is an anonymous class or if the receiver is a top-level class.
- * e.g.
- * public class A {
- * public class B {
- * }
- * public void foo() {
- * class C {}
- * }
- * public Runnable bar() {
- * return new Runnable() {
- * public void run() {}
- * };
- * }
- * }
- * It returns {'B'} for the member A$B
- * It returns null for A
- * It returns {'C'} for the local class A$1$C
- * It returns null for the anonymous A$1
- * @return char[]
- */
-public char[] getInnerSourceName() {
- if (this.innerInfo != null)
- return this.innerInfo.getSourceName();
- return null;
-}
-/**
- * Answer the resolved names of the receiver's interfaces in the
- * class file format as specified in section 4.2 of the Java 2 VM spec
- * or null if the array is empty.
- *
- * For example, java.lang.String is java/lang/String.
- * @return char[][]
- */
-public char[][] getInterfaceNames() {
- return this.interfaceNames;
-}
-/**
- * Answer the receiver's nested types or null if the array is empty.
- *
- * This nested type info is extracted from the inner class attributes.
- * Ask the name environment to find a member type using its compound name
- * @return org.eclipse.jdt.internal.compiler.api.IBinaryNestedType[]
- */
-public IBinaryNestedType[] getMemberTypes() {
- // we might have some member types of the current type
- if (this.innerInfos == null) return null;
-
- int length = this.innerInfos.length;
- int startingIndex = this.innerInfo != null ? this.innerInfoIndex + 1 : 0;
- if (length != startingIndex) {
- IBinaryNestedType[] memberTypes =
- new IBinaryNestedType[length - this.innerInfoIndex];
- int memberTypeIndex = 0;
- for (int i = startingIndex; i < length; i++) {
- InnerClassInfo currentInnerInfo = this.innerInfos[i];
- int outerClassNameIdx = currentInnerInfo.outerClassNameIndex;
- int innerNameIndex = currentInnerInfo.innerNameIndex;
- /*
- * Checking that outerClassNameIDx is different from 0 should be enough to determine if an inner class
- * attribute entry is a member class, but due to the bug:
- * http://dev.eclipse.org/bugs/show_bug.cgi?id=14592
- * we needed to add an extra check. So we check that innerNameIndex is different from 0 as well.
- *
- * https://bugs.eclipse.org/bugs/show_bug.cgi?id=49879
- * From JavaMail 1.2, the class javax.mail.Folder contains an anonymous class in the
- * terminateQueue() method for which the inner attribute is boggus.
- * outerClassNameIdx is not 0, innerNameIndex is not 0, but the sourceName length is 0.
- * So I added this extra check to filter out this anonymous class from the
- * member types.
- */
- if (outerClassNameIdx != 0
- && innerNameIndex != 0
- && outerClassNameIdx == this.classNameIndex
- && currentInnerInfo.getSourceName().length != 0) {
- memberTypes[memberTypeIndex++] = currentInnerInfo;
- }
- }
- if (memberTypeIndex == 0) return null;
- if (memberTypeIndex != memberTypes.length) {
- // we need to resize the memberTypes array. Some local or anonymous classes
- // are present in the current class.
- System.arraycopy(
- memberTypes,
- 0,
- (memberTypes = new IBinaryNestedType[memberTypeIndex]),
- 0,
- memberTypeIndex);
- }
- return memberTypes;
- }
- return null;
-}
-/**
- * Answer the receiver's this.methods or null if the array is empty.
- * @return org.eclipse.jdt.internal.compiler.api.env.IBinaryMethod[]
- */
-public IBinaryMethod[] getMethods() {
- return this.methods;
-}
-/**
- * Answer an int whose bits are set according the access constants
- * defined by the VM spec.
- * Set the AccDeprecated and AccSynthetic bits if necessary
- * @return int
- */
-public int getModifiers() {
- if (this.innerInfo != null) {
- if ((this.accessFlags & AccDeprecated) != 0) {
- return this.innerInfo.getModifiers() | AccDeprecated;
- } else {
- return this.innerInfo.getModifiers();
- }
- }
- return this.accessFlags;
-}
-/**
- * Answer the resolved name of the type in the
- * class file format as specified in section 4.2 of the Java 2 VM spec.
- *
- * For example, java.lang.String is java/lang/String.
- * @return char[]
- */
-public char[] getName() {
- return this.className;
-}
-/**
- * Answer the resolved name of the receiver's superclass in the
- * class file format as specified in section 4.2 of the Java 2 VM spec
- * or null if it does not have one.
- *
- * For example, java.lang.String is java/lang/String.
- * @return char[]
- */
-public char[] getSuperclassName() {
- return this.superclassName;
-}
-/**
- * Answer the major/minor version defined in this class file according to the VM spec.
- * as a long: (major<<16)+minor
- * @return the major/minor version found
- */
-public long getVersion() {
- return this.version;
-}
-/**
- * Answer true if the receiver is an anonymous type, false otherwise
- *
- * @return boolean
- */
-public boolean isAnonymous() {
- if (this.innerInfo == null) return false;
- char[] sourceName = this.innerInfo.getSourceName();
- return (sourceName == null || sourceName.length == 0);
-}
-/**
- * Answer whether the receiver contains the resolved binary form
- * or the unresolved source form of the type.
- * @return boolean
- */
-public boolean isBinaryType() {
- return true;
-}
-/**
- * Answer true if the receiver is a class. False otherwise.
- * @return boolean
- */
-public boolean isClass() {
- return (getModifiers() & AccInterface) == 0;
-}
-/**
- * Answer true if the receiver is an interface. False otherwise.
- * @return boolean
- */
-public boolean isInterface() {
- return (getModifiers() & AccInterface) != 0;
-}
-/**
- * Answer true if the receiver is a local type, false otherwise
- *
- * @return boolean
- */
-public boolean isLocal() {
- if (this.innerInfo == null) return false;
- if (this.innerInfo.getEnclosingTypeName() != null) return false;
- char[] sourceName = this.innerInfo.getSourceName();
- return (sourceName != null && sourceName.length > 0);
-}
-/**
- * Answer true if the receiver is a member type, false otherwise
- *
- * @return boolean
- */
-public boolean isMember() {
- if (this.innerInfo == null) return false;
- if (this.innerInfo.getEnclosingTypeName() == null) return false;
- char[] sourceName = this.innerInfo.getSourceName();
- return (sourceName != null && sourceName.length > 0); // protection against ill-formed attributes (67600)
-}
-/**
- * Answer true if the receiver is a nested type, false otherwise
- *
- * @return boolean
- */
-public boolean isNestedType() {
- return this.innerInfo != null;
-}
-public static ClassFileReader read(File file) throws ClassFormatException, IOException {
- return read(file, false);
-}
-public static ClassFileReader read(File file, boolean fullyInitialize) throws ClassFormatException, IOException {
- byte classFileBytes[] = Util.getFileByteContent(file);
- ClassFileReader classFileReader = new ClassFileReader(classFileBytes, file.getAbsolutePath().toCharArray());
- if (fullyInitialize) {
- classFileReader.initialize();
- }
- return classFileReader;
-}
-public static ClassFileReader read(String fileName) throws ClassFormatException, java.io.IOException {
- return read(fileName, false);
-}
-public static ClassFileReader read(String fileName, boolean fullyInitialize) throws ClassFormatException, java.io.IOException {
- return read(new File(fileName), fullyInitialize);
-}
-public static ClassFileReader read(
- java.util.zip.ZipFile zip,
- String filename)
- throws ClassFormatException, java.io.IOException {
- return read(zip, filename, false);
-}
-public static ClassFileReader read(
- java.util.zip.ZipFile zip,
- String filename,
- boolean fullyInitialize)
- throws ClassFormatException, java.io.IOException {
- java.util.zip.ZipEntry ze = zip.getEntry(filename);
- if (ze == null)
- return null;
- byte classFileBytes[] = Util.getZipEntryByteContent(ze, zip);
- ClassFileReader classFileReader = new ClassFileReader(classFileBytes, filename.toCharArray());
- if (fullyInitialize) {
- classFileReader.initialize();
- }
- return classFileReader;
-}
-
-/**
- * Answer the source file name attribute. Return null if there is no source file attribute for the receiver.
- *
- * @return char[]
- */
-public char[] sourceFileName() {
- return this.sourceFileName;
-}
-public String toString() {
- java.io.ByteArrayOutputStream out = new java.io.ByteArrayOutputStream();
- java.io.PrintWriter print = new java.io.PrintWriter(out);
-
- print.println(this.getClass().getName() + "{"); //$NON-NLS-1$
- print.println(" this.className: " + new String(getName())); //$NON-NLS-1$
- print.println(" this.superclassName: " + (getSuperclassName() == null ? "null" : new String(getSuperclassName()))); //$NON-NLS-2$ //$NON-NLS-1$
- print.println(" access_flags: " + ClassFileStruct.printTypeModifiers(this.accessFlags()) + "(" + this.accessFlags() + ")"); //$NON-NLS-1$ //$NON-NLS-3$ //$NON-NLS-2$
-
- print.flush();
- return out.toString();
-}
-/**
- * Check if the receiver has structural changes compare to the byte array in argument.
- * Structural changes are:
- * - modifiers changes for the class, the this.fields or the this.methods
- * - signature changes for this.fields or this.methods.
- * - changes in the number of this.fields or this.methods
- * - changes for field constants
- * - changes for thrown exceptions
- * - change for the super class or any super interfaces.
- * - changes for member types name or modifiers
- * If any of these changes occurs, the method returns true. false otherwise.
- * The synthetic fields are included and the members are not required to be sorted.
- * @param newBytes the bytes of the .class file we want to compare the receiver to
- * @return boolean Returns true is there is a structural change between the two .class files, false otherwise
- */
-public boolean hasStructuralChanges(byte[] newBytes) {
- return hasStructuralChanges(newBytes, true, true);
-}
-/**
- * Check if the receiver has structural changes compare to the byte array in argument.
- * Structural changes are:
- * - modifiers changes for the class, the this.fields or the this.methods
- * - signature changes for this.fields or this.methods.
- * - changes in the number of this.fields or this.methods
- * - changes for field constants
- * - changes for thrown exceptions
- * - change for the super class or any super interfaces.
- * - changes for member types name or modifiers
- * If any of these changes occurs, the method returns true. false otherwise.
- * @param newBytes the bytes of the .class file we want to compare the receiver to
- * @param orderRequired a boolean indicating whether the members should be sorted or not
- * @param excludesSynthetic a boolean indicating whether the synthetic members should be used in the comparison
- * @return boolean Returns true is there is a structural change between the two .class files, false otherwise
- */
-public boolean hasStructuralChanges(byte[] newBytes, boolean orderRequired, boolean excludesSynthetic) {
- try {
- ClassFileReader newClassFile =
- new ClassFileReader(newBytes, this.classFileName);
- // type level comparison
- // modifiers
- if (this.getModifiers() != newClassFile.getModifiers())
- return true;
- // superclass
- if (!CharOperation.equals(this.getSuperclassName(), newClassFile.getSuperclassName()))
- return true;
- // interfaces
- char[][] newInterfacesNames = newClassFile.getInterfaceNames();
- if (this.interfaceNames != newInterfacesNames) { // TypeConstants.NoSuperInterfaces
- int newInterfacesLength = newInterfacesNames == null ? 0 : newInterfacesNames.length;
- if (newInterfacesLength != this.interfacesCount)
- return true;
- for (int i = 0, max = this.interfacesCount; i < max; i++)
- if (!CharOperation.equals(this.interfaceNames[i], newInterfacesNames[i]))
- return true;
- }
-
- // member types
- IBinaryNestedType[] currentMemberTypes = this.getMemberTypes();
- IBinaryNestedType[] otherMemberTypes = newClassFile.getMemberTypes();
- if (currentMemberTypes != otherMemberTypes) { // TypeConstants.NoMemberTypes
- int currentMemberTypeLength = currentMemberTypes == null ? 0 : currentMemberTypes.length;
- int otherMemberTypeLength = otherMemberTypes == null ? 0 : otherMemberTypes.length;
- if (currentMemberTypeLength != otherMemberTypeLength)
- return true;
- for (int i = 0; i < currentMemberTypeLength; i++)
- if (!CharOperation.equals(currentMemberTypes[i].getName(), otherMemberTypes[i].getName())
- || currentMemberTypes[i].getModifiers() != otherMemberTypes[i].getModifiers())
- return true;
- }
-
- // fields
- FieldInfo[] otherFieldInfos = (FieldInfo[]) newClassFile.getFields();
- int otherFieldInfosLength = otherFieldInfos == null ? 0 : otherFieldInfos.length;
- boolean compareFields = true;
- if (this.fieldsCount == otherFieldInfosLength) {
- int i = 0;
- for (; i < this.fieldsCount; i++)
- if (hasStructuralFieldChanges(this.fields[i], otherFieldInfos[i])) break;
- if ((compareFields = i != this.fieldsCount) && !orderRequired && !excludesSynthetic)
- return true;
- }
- if (compareFields) {
- if (this.fieldsCount != otherFieldInfosLength && !excludesSynthetic)
- return true;
- if (orderRequired) {
- if (this.fieldsCount != 0)
- Arrays.sort(this.fields);
- if (otherFieldInfosLength != 0)
- Arrays.sort(otherFieldInfos);
- }
- if (excludesSynthetic) {
- if (hasNonSyntheticFieldChanges(this.fields, otherFieldInfos))
- return true;
- } else {
- for (int i = 0; i < this.fieldsCount; i++)
- if (hasStructuralFieldChanges(this.fields[i], otherFieldInfos[i]))
- return true;
- }
- }
-
- // methods
- MethodInfo[] otherMethodInfos = (MethodInfo[]) newClassFile.getMethods();
- int otherMethodInfosLength = otherMethodInfos == null ? 0 : otherMethodInfos.length;
- boolean compareMethods = true;
- if (this.methodsCount == otherMethodInfosLength) {
- int i = 0;
- for (; i < this.methodsCount; i++)
- if (hasStructuralMethodChanges(this.methods[i], otherMethodInfos[i])) break;
- if ((compareMethods = i != this.methodsCount) && !orderRequired && !excludesSynthetic)
- return true;
- }
- if (compareMethods) {
- if (this.methodsCount != otherMethodInfosLength && !excludesSynthetic)
- return true;
- if (orderRequired) {
- if (this.methodsCount != 0)
- Arrays.sort(this.methods);
- if (otherMethodInfosLength != 0)
- Arrays.sort(otherMethodInfos);
- }
- if (excludesSynthetic) {
- if (hasNonSyntheticMethodChanges(this.methods, otherMethodInfos))
- return true;
- } else {
- for (int i = 0; i < this.methodsCount; i++)
- if (hasStructuralMethodChanges(this.methods[i], otherMethodInfos[i]))
- return true;
- }
- }
-
- return false;
- } catch (ClassFormatException e) {
- return true;
- }
-}
-private boolean hasNonSyntheticFieldChanges(FieldInfo[] currentFieldInfos, FieldInfo[] otherFieldInfos) {
- int length1 = currentFieldInfos == null ? 0 : currentFieldInfos.length;
- int length2 = otherFieldInfos == null ? 0 : otherFieldInfos.length;
- int index1 = 0;
- int index2 = 0;
-
- end : while (index1 < length1 && index2 < length2) {
- while (currentFieldInfos[index1].isSynthetic()) {
- if (++index1 >= length1) break end;
- }
- while (otherFieldInfos[index2].isSynthetic()) {
- if (++index2 >= length2) break end;
- }
- if (hasStructuralFieldChanges(currentFieldInfos[index1++], otherFieldInfos[index2++]))
- return true;
- }
-
- while (index1 < length1) {
- if (!currentFieldInfos[index1++].isSynthetic()) return true;
- }
- while (index2 < length2) {
- if (!otherFieldInfos[index2++].isSynthetic()) return true;
- }
- return false;
-}
-private boolean hasStructuralFieldChanges(FieldInfo currentFieldInfo, FieldInfo otherFieldInfo) {
- if (currentFieldInfo.getModifiers() != otherFieldInfo.getModifiers())
- return true;
- if (!CharOperation.equals(currentFieldInfo.getName(), otherFieldInfo.getName()))
- return true;
- if (!CharOperation.equals(currentFieldInfo.getTypeName(), otherFieldInfo.getTypeName()))
- return true;
- if (currentFieldInfo.hasConstant() != otherFieldInfo.hasConstant())
- return true;
- if (currentFieldInfo.hasConstant()) {
- Constant currentConstant = currentFieldInfo.getConstant();
- Constant otherConstant = otherFieldInfo.getConstant();
- if (currentConstant.typeID() != otherConstant.typeID())
- return true;
- if (!currentConstant.getClass().equals(otherConstant.getClass()))
- return true;
- switch (currentConstant.typeID()) {
- case TypeIds.T_int :
- return currentConstant.intValue() != otherConstant.intValue();
- case TypeIds.T_byte :
- return currentConstant.byteValue() != otherConstant.byteValue();
- case TypeIds.T_short :
- return currentConstant.shortValue() != otherConstant.shortValue();
- case TypeIds.T_char :
- return currentConstant.charValue() != otherConstant.charValue();
- case TypeIds.T_long :
- return currentConstant.longValue() != otherConstant.longValue();
- case TypeIds.T_float :
- return currentConstant.floatValue() != otherConstant.floatValue();
- case TypeIds.T_double :
- return currentConstant.doubleValue() != otherConstant.doubleValue();
- case TypeIds.T_boolean :
- return currentConstant.booleanValue() != otherConstant.booleanValue();
- case TypeIds.T_String :
- return !currentConstant.stringValue().equals(otherConstant.stringValue());
- }
- }
- return false;
-}
-private boolean hasNonSyntheticMethodChanges(MethodInfo[] currentMethodInfos, MethodInfo[] otherMethodInfos) {
- int length1 = currentMethodInfos == null ? 0 : currentMethodInfos.length;
- int length2 = otherMethodInfos == null ? 0 : otherMethodInfos.length;
- int index1 = 0;
- int index2 = 0;
-
- MethodInfo m;
- end : while (index1 < length1 && index2 < length2) {
- while ((m = currentMethodInfos[index1]).isSynthetic() || m.isClinit()) {
- if (++index1 >= length1) break end;
- }
- while ((m = otherMethodInfos[index2]).isSynthetic() || m.isClinit()) {
- if (++index2 >= length2) break end;
- }
- if (hasStructuralMethodChanges(currentMethodInfos[index1++], otherMethodInfos[index2++]))
- return true;
- }
-
- while (index1 < length1) {
- if (!((m = currentMethodInfos[index1++]).isSynthetic() || m.isClinit())) return true;
- }
- while (index2 < length2) {
- if (!((m = otherMethodInfos[index2++]).isSynthetic() || m.isClinit())) return true;
- }
- return false;
-}
-private boolean hasStructuralMethodChanges(MethodInfo currentMethodInfo, MethodInfo otherMethodInfo) {
- if (currentMethodInfo.getModifiers() != otherMethodInfo.getModifiers())
- return true;
- if (!CharOperation.equals(currentMethodInfo.getSelector(), otherMethodInfo.getSelector()))
- return true;
- if (!CharOperation.equals(currentMethodInfo.getMethodDescriptor(), otherMethodInfo.getMethodDescriptor()))
- return true;
-
- char[][] currentThrownExceptions = currentMethodInfo.getExceptionTypeNames();
- char[][] otherThrownExceptions = otherMethodInfo.getExceptionTypeNames();
- if (currentThrownExceptions != otherThrownExceptions) { // TypeConstants.NoExceptions
- int currentThrownExceptionsLength = currentThrownExceptions == null ? 0 : currentThrownExceptions.length;
- int otherThrownExceptionsLength = otherThrownExceptions == null ? 0 : otherThrownExceptions.length;
- if (currentThrownExceptionsLength != otherThrownExceptionsLength)
- return true;
- for (int k = 0; k < currentThrownExceptionsLength; k++)
- if (!CharOperation.equals(currentThrownExceptions[k], otherThrownExceptions[k]))
- return true;
- }
- return false;
-}
-/**
- * This method is used to fully initialize the contents of the receiver. All methodinfos, fields infos
- * will be therefore fully initialized and we can get rid of the bytes.
- */
-private void initialize() throws ClassFormatException {
- try {
- for (int i = 0, max = fieldsCount; i < max; i++) {
- fields[i].initialize();
- }
- for (int i = 0, max = methodsCount; i < max; i++) {
- methods[i].initialize();
- }
- if (innerInfos != null) {
- for (int i = 0, max = innerInfos.length; i < max; i++) {
- innerInfos[i].initialize();
- }
- }
- this.reset();
- } catch(RuntimeException e) {
- ClassFormatException exception = new ClassFormatException(e, this.classFileName);
- throw exception;
- }
-}
-protected void reset() {
- this.constantPoolOffsets = null;
- super.reset();
-}
-
-}