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/*
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* Copyright 1998-2008 Sun Microsystems, Inc. All Rights Reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Sun designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Sun in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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* CA 95054 USA or visit www.sun.com if you need additional information or
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* have any questions.
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*/
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package com.sun.tools.jdi;
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import java.util.List;
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import java.util.ArrayList;
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public class JNITypeParser {
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static final char SIGNATURE_ENDCLASS = ';';
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static final char SIGNATURE_FUNC = '(';
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static final char SIGNATURE_ENDFUNC = ')';
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private String signature;
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private List<String> typeNameList;
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private List<String> signatureList;
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private int currentIndex;
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JNITypeParser(String signature) {
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this.signature = signature;
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}
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static String typeNameToSignature(String signature) {
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StringBuffer buffer = new StringBuffer();
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int firstIndex = signature.indexOf('[');
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int index = firstIndex;
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while (index != -1) {
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buffer.append('[');
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index = signature.indexOf('[', index + 1);
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}
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if (firstIndex != -1) {
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signature = signature.substring(0, firstIndex);
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}
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if (signature.equals("boolean")) {
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buffer.append('Z');
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} else if (signature.equals("byte")) {
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buffer.append('B');
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} else if (signature.equals("char")) {
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buffer.append('C');
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} else if (signature.equals("short")) {
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buffer.append('S');
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} else if (signature.equals("int")) {
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buffer.append('I');
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} else if (signature.equals("long")) {
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buffer.append('J');
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} else if (signature.equals("float")) {
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buffer.append('F');
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} else if (signature.equals("double")) {
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buffer.append('D');
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} else {
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buffer.append('L');
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buffer.append(signature.replace('.', '/'));
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buffer.append(';');
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}
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return buffer.toString();
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}
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String typeName() {
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return typeNameList().get(typeNameList().size()-1);
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}
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List<String> argumentTypeNames() {
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return typeNameList().subList(0, typeNameList().size() - 1);
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}
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String signature() {
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return signatureList().get(signatureList().size()-1);
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}
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List<String> argumentSignatures() {
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return signatureList().subList(0, signatureList().size() - 1);
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}
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int dimensionCount() {
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int count = 0;
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String signature = signature();
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while (signature.charAt(count) == '[') {
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count++;
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}
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return count;
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}
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String componentSignature(int level) {
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return signature().substring(level);
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}
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private synchronized List<String> signatureList() {
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if (signatureList == null) {
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signatureList = new ArrayList<String>(10);
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String elem;
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currentIndex = 0;
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while(currentIndex < signature.length()) {
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elem = nextSignature();
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signatureList.add(elem);
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}
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if (signatureList.size() == 0) {
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throw new IllegalArgumentException("Invalid JNI signature '" +
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signature + "'");
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}
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}
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return signatureList;
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}
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private synchronized List<String> typeNameList() {
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if (typeNameList == null) {
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typeNameList = new ArrayList<String>(10);
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String elem;
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currentIndex = 0;
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while(currentIndex < signature.length()) {
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elem = nextTypeName();
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typeNameList.add(elem);
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}
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if (typeNameList.size() == 0) {
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throw new IllegalArgumentException("Invalid JNI signature '" +
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signature + "'");
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}
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}
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return typeNameList;
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}
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private String nextSignature() {
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char key = signature.charAt(currentIndex++);
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switch(key) {
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case (JDWP.Tag.ARRAY):
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return key + nextSignature();
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case (JDWP.Tag.OBJECT):
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int endClass = signature.indexOf(SIGNATURE_ENDCLASS,
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currentIndex);
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String retVal = signature.substring(currentIndex - 1,
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endClass + 1);
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currentIndex = endClass + 1;
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return retVal;
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case (JDWP.Tag.VOID):
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case (JDWP.Tag.BOOLEAN):
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case (JDWP.Tag.BYTE):
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case (JDWP.Tag.CHAR):
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case (JDWP.Tag.SHORT):
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case (JDWP.Tag.INT):
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case (JDWP.Tag.LONG):
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case (JDWP.Tag.FLOAT):
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case (JDWP.Tag.DOUBLE):
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return String.valueOf(key);
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case SIGNATURE_ENDFUNC:
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case SIGNATURE_FUNC:
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return nextSignature();
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default:
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throw new IllegalArgumentException(
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"Invalid JNI signature character '" + key + "'");
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}
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}
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private String nextTypeName() {
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char key = signature.charAt(currentIndex++);
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switch(key) {
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case (JDWP.Tag.ARRAY):
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return nextTypeName() + "[]";
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case (JDWP.Tag.BYTE):
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return "byte";
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case (JDWP.Tag.CHAR):
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return "char";
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case (JDWP.Tag.OBJECT):
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int endClass = signature.indexOf(SIGNATURE_ENDCLASS,
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currentIndex);
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String retVal = signature.substring(currentIndex,
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endClass);
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retVal = retVal.replace('/','.');
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currentIndex = endClass + 1;
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return retVal;
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case (JDWP.Tag.FLOAT):
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return "float";
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case (JDWP.Tag.DOUBLE):
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return "double";
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case (JDWP.Tag.INT):
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return "int";
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case (JDWP.Tag.LONG):
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return "long";
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case (JDWP.Tag.SHORT):
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return "short";
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case (JDWP.Tag.VOID):
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return "void";
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case (JDWP.Tag.BOOLEAN):
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return "boolean";
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case SIGNATURE_ENDFUNC:
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case SIGNATURE_FUNC:
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return nextTypeName();
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default:
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throw new IllegalArgumentException(
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"Invalid JNI signature character '" + key + "'");
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}
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}
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}
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