| /******************************************************************************* |
| * Copyright (c) 2000, 2009 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.jdt.internal.compiler.classfmt; |
| |
| import org.eclipse.jdt.internal.compiler.env.IBinaryNestedType; |
| |
| /** |
| * Describes one entry in the classes table of the InnerClasses attribute. |
| * See the inner class specification (The class file attribute "InnerClasses"). |
| */ |
| |
| public class InnerClassInfo extends ClassFileStruct implements IBinaryNestedType { |
| int innerClassNameIndex = -1; |
| int outerClassNameIndex = -1; |
| int innerNameIndex = -1; |
| private char[] innerClassName; |
| private char[] outerClassName; |
| private char[] innerName; |
| private int accessFlags = -1; |
| private boolean readInnerClassName = false; |
| private boolean readOuterClassName = false; |
| private boolean readInnerName = false; |
| |
| public InnerClassInfo(byte classFileBytes[], int offsets[], int offset) { |
| super(classFileBytes, offsets, offset); |
| this.innerClassNameIndex = u2At(0); |
| this.outerClassNameIndex = u2At(2); |
| this.innerNameIndex = u2At(4); |
| } |
| /** |
| * Answer the resolved name of the enclosing 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[] getEnclosingTypeName() { |
| if (!this.readOuterClassName) { |
| // read outer class name |
| this.readOuterClassName = true; |
| if (this.outerClassNameIndex != 0) { |
| int utf8Offset = |
| this.constantPoolOffsets[u2At( |
| this.constantPoolOffsets[this.outerClassNameIndex] - this.structOffset + 1)] |
| - this.structOffset; |
| this.outerClassName = utf8At(utf8Offset + 3, u2At(utf8Offset + 1)); |
| } |
| |
| } |
| return this.outerClassName; |
| } |
| /** |
| * Answer an int whose bits are set according the access constants |
| * defined by the VM spec. |
| * @return int |
| */ |
| public int getModifiers() { |
| if (this.accessFlags == -1) { |
| // read access flag |
| this.accessFlags = u2At(6); |
| } |
| return this.accessFlags; |
| } |
| /** |
| * Answer the resolved name of the member type in the |
| * class file format as specified in section 4.2 of the Java 2 VM spec. |
| * |
| * For example, p1.p2.A.M is p1/p2/A$M. |
| * @return char[] |
| */ |
| public char[] getName() { |
| if (!this.readInnerClassName) { |
| // read the inner class name |
| this.readInnerClassName = true; |
| if (this.innerClassNameIndex != 0) { |
| int classOffset = this.constantPoolOffsets[this.innerClassNameIndex] - this.structOffset; |
| int utf8Offset = this.constantPoolOffsets[u2At(classOffset + 1)] - this.structOffset; |
| this.innerClassName = utf8At(utf8Offset + 3, u2At(utf8Offset + 1)); |
| } |
| } |
| return this.innerClassName; |
| } |
| /** |
| * Answer the source name of the member type. |
| * |
| * For example, p1.p2.A.M is M. |
| * @return char[] |
| */ |
| public char[] getSourceName() { |
| if (!this.readInnerName) { |
| this.readInnerName = true; |
| if (this.innerNameIndex != 0) { |
| int utf8Offset = this.constantPoolOffsets[this.innerNameIndex] - this.structOffset; |
| this.innerName = utf8At(utf8Offset + 3, u2At(utf8Offset + 1)); |
| } |
| } |
| return this.innerName; |
| } |
| /** |
| * Answer the string representation of the receiver |
| * @return java.lang.String |
| */ |
| public String toString() { |
| StringBuffer buffer = new StringBuffer(); |
| if (getName() != null) { |
| buffer.append(getName()); |
| } |
| buffer.append("\n"); //$NON-NLS-1$ |
| if (getEnclosingTypeName() != null) { |
| buffer.append(getEnclosingTypeName()); |
| } |
| buffer.append("\n"); //$NON-NLS-1$ |
| if (getSourceName() != null) { |
| buffer.append(getSourceName()); |
| } |
| return buffer.toString(); |
| } |
| /** |
| * 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. |
| */ |
| void initialize() { |
| getModifiers(); |
| getName(); |
| getSourceName(); |
| getEnclosingTypeName(); |
| reset(); |
| } |
| } |