Mercurial > hg > truffle
view agent/src/share/classes/sun/jvm/hotspot/jdi/JNITypeParser.java @ 19491:4d66c000d253
Truffle/Instrumentation: more cleanup in Probe
author | Michael Van De Vanter <michael.van.de.vanter@oracle.com> |
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date | Wed, 18 Feb 2015 18:30:49 -0800 |
parents | c18cbe5936b8 |
children |
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/* * Copyright (c) 2002, 2003, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. * */ package sun.jvm.hotspot.jdi; import java.util.List; import java.util.ArrayList; public class JNITypeParser { static final char SIGNATURE_ENDCLASS = ';'; static final char SIGNATURE_FUNC = '('; static final char SIGNATURE_ENDFUNC = ')'; private String signature; private List typeNameList; private List signatureList; private int currentIndex; JNITypeParser(String signature) { this.signature = signature; } static String typeNameToSignature(String signature) { StringBuffer buffer = new StringBuffer(); int firstIndex = signature.indexOf('['); int index = firstIndex; while (index != -1) { buffer.append('['); index = signature.indexOf('[', index + 1); } if (firstIndex != -1) { signature = signature.substring(0, firstIndex); } if (signature.equals("boolean")) { buffer.append('Z'); } else if (signature.equals("byte")) { buffer.append('B'); } else if (signature.equals("char")) { buffer.append('C'); } else if (signature.equals("short")) { buffer.append('S'); } else if (signature.equals("int")) { buffer.append('I'); } else if (signature.equals("long")) { buffer.append('J'); } else if (signature.equals("float")) { buffer.append('F'); } else if (signature.equals("double")) { buffer.append('D'); } else { buffer.append('L'); buffer.append(signature.replace('.', '/')); buffer.append(';'); } return buffer.toString(); } String typeName() { return (String)typeNameList().get(typeNameList().size()-1); } List argumentTypeNames() { return typeNameList().subList(0, typeNameList().size() - 1); } String signature() { return (String)signatureList().get(signatureList().size()-1); } List argumentSignatures() { return signatureList().subList(0, signatureList().size() - 1); } int dimensionCount() { int count = 0; String signature = signature(); while (signature.charAt(count) == '[') { count++; } return count; } String componentSignature(int level) { return signature().substring(level); } private synchronized List signatureList() { if (signatureList == null) { signatureList = new ArrayList(10); String elem; currentIndex = 0; while(currentIndex < signature.length()) { elem = nextSignature(); signatureList.add(elem); } if (signatureList.size() == 0) { throw new IllegalArgumentException("Invalid JNI signature '" + signature + "'"); } } return signatureList; } private synchronized List typeNameList() { if (typeNameList == null) { typeNameList = new ArrayList(10); String elem; currentIndex = 0; while(currentIndex < signature.length()) { elem = nextTypeName(); typeNameList.add(elem); } if (typeNameList.size() == 0) { throw new IllegalArgumentException("Invalid JNI signature '" + signature + "'"); } } return typeNameList; } private String nextSignature() { char key = signature.charAt(currentIndex++); switch(key) { case '[': return key + nextSignature(); case 'L': int endClass = signature.indexOf(SIGNATURE_ENDCLASS, currentIndex); String retVal = signature.substring(currentIndex - 1, endClass + 1); currentIndex = endClass + 1; return retVal; case 'V': case 'Z': case 'B': case 'C': case 'S': case 'I': case 'J': case 'F': case 'D': return String.valueOf(key); case SIGNATURE_FUNC: case SIGNATURE_ENDFUNC: return nextSignature(); default: throw new IllegalArgumentException( "Invalid JNI signature character '" + key + "'"); } } private String nextTypeName() { char key = signature.charAt(currentIndex++); switch(key) { case '[': return nextTypeName() + "[]"; case 'B': return "byte"; case 'C': return "char"; case 'L': int endClass = signature.indexOf(SIGNATURE_ENDCLASS, currentIndex); String retVal = signature.substring(currentIndex, endClass); retVal = retVal.replace('/','.'); currentIndex = endClass + 1; return retVal; case 'F': return "float"; case 'D': return "double"; case 'I': return "int"; case 'J': return "long"; case 'S': return "short"; case 'V': return "void"; case 'Z': return "boolean"; case SIGNATURE_ENDFUNC: case SIGNATURE_FUNC: return nextTypeName(); default: throw new IllegalArgumentException( "Invalid JNI signature character '" + key + "'"); } } }