author | redestad |
Thu, 13 Dec 2018 15:31:05 +0100 | |
changeset 53018 | 8bf9268df0e2 |
parent 47216 | 71c04702a3d5 |
permissions | -rw-r--r-- |
36511 | 1 |
/* |
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* Copyright (c) 2015, 2016, Oracle and/or its affiliates. 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. Oracle designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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package jdk.internal.jimage.decompressor; |
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import java.util.ArrayList; |
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import java.util.List; |
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/** |
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* |
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* A descriptor parser used to extract java type strings from |
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* UTF_8 descriptors. |
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* |
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* @implNote This class needs to maintain JDK 8 source compatibility. |
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* |
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* It is used internally in the JDK to implement jimage/jrtfs access, |
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* but also compiled and delivered as part of the jrtfs.jar to support access |
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* to the jimage file provided by the shipped JDK by tools running on JDK 8. |
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*/ |
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public class SignatureParser { |
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public static class ParseResult { |
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public final List<String> types = new ArrayList<>(); |
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public String formatted; |
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private ParseResult() {} |
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} |
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private SignatureParser() {} |
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public static String reconstruct(String formatted, List<String> arguments) { |
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int arg_index = 0; |
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char[] chars = formatted.toCharArray(); |
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StringBuilder out = new StringBuilder(); |
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for (int i = 0; i < chars.length; i++) { |
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char c = chars[i]; |
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out.append(c); |
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switch (c) { |
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case 'L': { |
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String pkg = arguments.get(arg_index); |
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53018
8bf9268df0e2
8215281: Use String.isEmpty() when applicable in java.base
redestad
parents:
47216
diff
changeset
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if(!pkg.isEmpty()) { |
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out.append(pkg).append("/"); |
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} |
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arg_index+=1; |
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out.append(arguments.get(arg_index)); |
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arg_index+=1; |
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break; |
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} |
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default: { |
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break; |
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} |
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} |
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} |
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return out.toString(); |
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} |
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public static ParseResult parseSignatureDescriptor(String str) { |
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ParseResult res = new ParseResult(); |
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char[] chars = str.toCharArray(); |
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StringBuilder type = null; |
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StringBuilder formatted = new StringBuilder(); |
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for (int i = 0; i < chars.length; i++) { |
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char c = chars[i]; |
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switch (c) { |
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case ';': |
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case ':': |
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case '<': { |
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if(type != null) { |
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String fullName = type.toString(); |
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int endIndex = fullName.lastIndexOf("/"); |
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String clazz = fullName; |
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String pkg = ""; |
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if(endIndex != -1) { |
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pkg = fullName.substring(0, endIndex); |
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clazz = fullName.substring(endIndex+1); |
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} |
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res.types.add(pkg); |
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res.types.add(clazz); |
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} |
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formatted.append(c); |
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type = null; |
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break; |
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} |
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case 'L': { |
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if(type == null) { |
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type = new StringBuilder(); |
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formatted.append(c); |
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} else { |
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type.append(c); |
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} |
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break; |
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} |
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default: { |
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if(type == null) { |
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formatted.append(c); |
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} else { |
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type.append(c); |
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} |
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break; |
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} |
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} |
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} |
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res.formatted = formatted.toString(); |
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return res; |
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} |
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} |