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Diffstat (limited to 'src/proguard/obfuscate/MappingReader.java')
| -rw-r--r-- | src/proguard/obfuscate/MappingReader.java | 199 |
1 files changed, 0 insertions, 199 deletions
diff --git a/src/proguard/obfuscate/MappingReader.java b/src/proguard/obfuscate/MappingReader.java deleted file mode 100644 index 88a13e0..0000000 --- a/src/proguard/obfuscate/MappingReader.java +++ /dev/null @@ -1,199 +0,0 @@ -/* - * ProGuard -- shrinking, optimization, obfuscation, and preverification - * of Java bytecode. - * - * Copyright (c) 2002-2014 Eric Lafortune (eric@graphics.cornell.edu) - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the Free - * Software Foundation; either version 2 of the License, or (at your option) - * any later version. - * - * This program 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 for - * more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ -package proguard.obfuscate; - -import java.io.*; - - -/** - * This class can parse mapping files and invoke a processor for each of the - * mapping entries. - * - * @author Eric Lafortune - */ -public class MappingReader -{ - private final File mappingFile; - - - public MappingReader(File mappingFile) - { - this.mappingFile = mappingFile; - } - - - /** - * Reads the mapping file, presenting all of the encountered mapping entries - * to the given processor. - */ - public void pump(MappingProcessor mappingProcessor) throws IOException - { - LineNumberReader reader = new LineNumberReader( - new BufferedReader( - new FileReader(mappingFile))); - try - { - String className = null; - - // Read the subsequent class mappings and class member mappings. - while (true) - { - String line = reader.readLine(); - - if (line == null) - { - break; - } - - line = line.trim(); - - // The distinction between a class mapping and a class - // member mapping is the initial whitespace. - if (line.endsWith(":")) - { - // Process the class mapping and remember the class's - // old name. - className = processClassMapping(line, mappingProcessor); - } - else if (className != null) - { - // Process the class member mapping, in the context of the - // current old class name. - processClassMemberMapping(className, line, mappingProcessor); - } - } - } - catch (IOException ex) - { - throw new IOException("Can't process mapping file (" + ex.getMessage() + ")"); - } - finally - { - try - { - reader.close(); - } - catch (IOException ex) - { - // This shouldn't happen. - } - } - } - - - /** - * Parses the given line with a class mapping and processes the - * results with the given mapping processor. Returns the old class name, - * or null if any subsequent class member lines can be ignored. - */ - private String processClassMapping(String line, - MappingProcessor mappingProcessor) - { - // See if we can parse "___ -> ___:", containing the original - // class name and the new class name. - - int arrowIndex = line.indexOf("->"); - if (arrowIndex < 0) - { - return null; - } - - int colonIndex = line.indexOf(':', arrowIndex + 2); - if (colonIndex < 0) - { - return null; - } - - // Extract the elements. - String className = line.substring(0, arrowIndex).trim(); - String newClassName = line.substring(arrowIndex + 2, colonIndex).trim(); - - // Process this class name mapping. - boolean interested = mappingProcessor.processClassMapping(className, newClassName); - - return interested ? className : null; - } - - - /** - * Parses the given line with a class member mapping and processes the - * results with the given mapping processor. - */ - private void processClassMemberMapping(String className, - String line, - MappingProcessor mappingProcessor) - { - // See if we can parse "___:___:___ ___(___) -> ___", - // containing the optional line numbers, the return type, the original - // field/method name, optional arguments, and the new field/method name. - - int colonIndex1 = line.indexOf(':'); - int colonIndex2 = colonIndex1 < 0 ? -1 : line.indexOf(':', colonIndex1 + 1); - int spaceIndex = line.indexOf(' ', colonIndex2 + 2); - int argumentIndex1 = line.indexOf('(', spaceIndex + 1); - int argumentIndex2 = argumentIndex1 < 0 ? -1 : line.indexOf(')', argumentIndex1 + 1); - int arrowIndex = line.indexOf("->", Math.max(spaceIndex, argumentIndex2) + 1); - - if (spaceIndex < 0 || - arrowIndex < 0) - { - return; - } - - // Extract the elements. - String type = line.substring(colonIndex2 + 1, spaceIndex).trim(); - String name = line.substring(spaceIndex + 1, argumentIndex1 >= 0 ? argumentIndex1 : arrowIndex).trim(); - String newName = line.substring(arrowIndex + 2).trim(); - - // Process this class member mapping. - if (type.length() > 0 && - name.length() > 0 && - newName.length() > 0) - { - // Is it a field or a method? - if (argumentIndex2 < 0) - { - mappingProcessor.processFieldMapping(className, type, name, newName); - } - else - { - int firstLineNumber = 0; - int lastLineNumber = 0; - - if (colonIndex2 > 0) - { - firstLineNumber = Integer.parseInt(line.substring(0, colonIndex1).trim()); - lastLineNumber = Integer.parseInt(line.substring(colonIndex1 + 1, colonIndex2).trim()); - } - - String arguments = line.substring(argumentIndex1 + 1, argumentIndex2).trim(); - - mappingProcessor.processMethodMapping(className, - firstLineNumber, - lastLineNumber, - type, - name, - arguments, - newName); - } - } - } -} |