88 lines
2.6 KiB
Java
88 lines
2.6 KiB
Java
/*******************************************************************************
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* Copyright (c) 2002,2006 IBM Corporation.
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* All rights reserved. This program and the accompanying materials
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* are made available under the terms of the Eclipse Public License v1.0
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* which accompanies this distribution, and is available at
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* http://www.eclipse.org/legal/epl-v10.html
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*
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* Contributors:
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* IBM Corporation - initial API and implementation
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*******************************************************************************/
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package com.ibm.wala.shrikeCT;
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/**
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* This class reads InnerClasses attributes.
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*/
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public final class InnerClassesReader extends AttributeReader {
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/**
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* Build a reader for the attribute 'iter'.
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*/
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public InnerClassesReader(ClassReader.AttrIterator iter) throws InvalidClassFileException {
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super(iter, "InnerClasses");
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checkSize(attr, 8);
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int count = cr.getUShort(attr + 6);
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checkSizeEquals(attr + 8, 8 * count);
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}
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/**
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* @return the raw values that make up this attribute
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*/
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public int[] getRawTable() {
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int count = cr.getUShort(attr + 6);
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int[] r = new int[count * 4];
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for (int i = 0; i < r.length; i++) {
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r[i] = cr.getUShort(attr + 8 + i * 2);
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}
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return r;
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}
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/**
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* @return the names of inner classes this attribute holds information about.
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*/
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public String[] getInnerClasses() throws InvalidClassFileException {
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int count = cr.getUShort(attr + 6);
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String[] r = new String[count];
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ConstantPoolParser cp = cr.getCP();
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for (int i = 0; i < r.length; i++) {
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r[i] = cp.getCPClass(cr.getUShort(attr + 8 + i * 8));
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}
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return r;
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}
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/**
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* return the name of the outer class recorded as the enclosing class for a class named s. return null if not found.
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*
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* @throws InvalidClassFileException
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*/
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public String getOuterClass(String s) throws InvalidClassFileException {
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String[] inner = getInnerClasses();
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for (int i = 0; i < inner.length; i++) {
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if (inner[i].equals(s)) {
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int x = cr.getUShort(attr + 8 + i * 8 + 2);
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if (x != 0) {
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ConstantPoolParser cp = cr.getCP();
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return cp.getCPClass(cr.getUShort(attr + 8 + i * 8 + 2));
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}
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}
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}
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return null;
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}
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/**
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* return the mask of flags recorded in the InnerClasses attribute for a class named s. return 0 if not found.
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*
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* @throws InvalidClassFileException
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*/
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public int getAccessFlags(String s) throws InvalidClassFileException {
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String[] inner = getInnerClasses();
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for (int i = 0; i < inner.length; i++) {
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if (inner[i].equals(s)) {
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return cr.getUShort(attr + 8 + i * 8 + 6);
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}
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}
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return 0;
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}
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}
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