From b280104d2f926ab74772cef2bf1602663cefa312 Mon Sep 17 00:00:00 2001 From: Thog Date: Tue, 16 May 2017 00:24:29 +0200 Subject: Remove the converter + some reorganization --- .../enigma/bytecode/LocalVariableRenamer.java | 150 --------------------- 1 file changed, 150 deletions(-) delete mode 100644 src/main/java/cuchaz/enigma/bytecode/LocalVariableRenamer.java (limited to 'src/main/java/cuchaz/enigma/bytecode/LocalVariableRenamer.java') diff --git a/src/main/java/cuchaz/enigma/bytecode/LocalVariableRenamer.java b/src/main/java/cuchaz/enigma/bytecode/LocalVariableRenamer.java deleted file mode 100644 index 878e30a..0000000 --- a/src/main/java/cuchaz/enigma/bytecode/LocalVariableRenamer.java +++ /dev/null @@ -1,150 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2015 Jeff Martin. - * All rights reserved. This program and the accompanying materials - * are made available under the terms of the GNU Lesser General Public - * License v3.0 which accompanies this distribution, and is available at - * http://www.gnu.org/licenses/lgpl.html - *

- * Contributors: - * Jeff Martin - initial API and implementation - ******************************************************************************/ - -package cuchaz.enigma.bytecode; - -import cuchaz.enigma.mapping.*; -import javassist.CtBehavior; -import javassist.CtClass; -import javassist.bytecode.*; - -public class LocalVariableRenamer { - - private Translator translator; - - public LocalVariableRenamer(Translator translator) { - this.translator = translator; - } - - public void rename(CtClass c) { - for (CtBehavior behavior : c.getDeclaredBehaviors()) { - - // if there's a local variable table, just rename everything to v1, v2, v3, ... for now - CodeAttribute codeAttribute = behavior.getMethodInfo().getCodeAttribute(); - if (codeAttribute == null) { - continue; - } - - BehaviorEntry behaviorEntry = EntryFactory.getBehaviorEntry(behavior); - ConstPool constants = c.getClassFile().getConstPool(); - - LocalVariableAttribute table = (LocalVariableAttribute) codeAttribute.getAttribute(LocalVariableAttribute.tag); - if (table != null) { - renameLVT(behaviorEntry, constants, table, c); - } - - LocalVariableTypeAttribute typeTable = (LocalVariableTypeAttribute) codeAttribute.getAttribute(LocalVariableAttribute.typeTag); - if (typeTable != null) { - renameLVTT(typeTable, table); - } - } - } - - // DEBUG - @SuppressWarnings("unused") - private void dumpTable(LocalVariableAttribute table) { - for (int i = 0; i < table.tableLength(); i++) { - System.out.println(String.format("\t%d (%d): %s %s", - i, table.index(i), table.variableName(i), table.descriptor(i) - )); - } - } - - private void renameLVT(BehaviorEntry behaviorEntry, ConstPool constants, LocalVariableAttribute table, CtClass ctClass) { - - // skip empty tables - if (table.tableLength() <= 0) { - return; - } - - // where do we start counting variables? - int starti = 0; - if (table.variableName(0).equals("this")) { - // skip the "this" variable - starti++; - } - - // rename method arguments first - int numArgs = 0; - if (behaviorEntry.getSignature() != null) { - numArgs = behaviorEntry.getSignature().getArgumentTypes().size(); - boolean isNestedClassConstructor = false; - - // If the behavior is a constructor and if it have more than one arg, it's probably from a nested! - if (behaviorEntry instanceof ConstructorEntry && behaviorEntry.getClassEntry() != null && behaviorEntry.getClassEntry().isInnerClass() && numArgs >= 1) { - // Get the first arg type - Type firstArg = behaviorEntry.getSignature().getArgumentTypes().get(0); - - // If the arg is a class and if the class name match the outer class name of the constructor, it's definitely a constructor of a nested class - if (firstArg.isClass() && firstArg.getClassEntry().equals(behaviorEntry.getClassEntry().getOuterClassEntry())) { - isNestedClassConstructor = true; - numArgs--; - } - } - - for (int i = starti; i < starti + numArgs && i < table.tableLength(); i++) { - int argi = i - starti; - if (ctClass.isEnum()) - argi += 2; - if (behaviorEntry.getClassEntry().getName().contains("ahd") && behaviorEntry instanceof ConstructorEntry) - System.out.println(behaviorEntry.getClassEntry() + " " + i); - String argName = this.translator.translate(new ArgumentEntry(behaviorEntry, argi, "")); - if (argName == null) { - int argIndex = isNestedClassConstructor ? argi + 1 : argi; - if (ctClass.isEnum()) - argIndex -= 2; - Type argType = behaviorEntry.getSignature().getArgumentTypes().get(argIndex); - // Unfortunately each of these have different name getters, so they have different code paths - if (argType.isPrimitive()) { - Type.Primitive argCls = argType.getPrimitive(); - argName = "a" + argCls.name() + (argIndex + 1); - } else if (argType.isArray()) { - // List types would require this whole block again, so just go with aListx - argName = "aList" + (argIndex + 1); - } else if (argType.isClass()) { - ClassEntry argClsTrans = this.translator.translateEntry(argType.getClassEntry()); - argName = "a" + argClsTrans.getSimpleName().replace("$", "") + (argIndex + 1); - } else { - argName = "a" + (argIndex + 1); - } - } - renameVariable(table, i, constants.addUtf8Info(argName)); - } - } - - // then rename the rest of the args, if any - for (int i = starti + numArgs; i < table.tableLength(); i++) { - int firstIndex = Math.min(table.index(starti + numArgs), table.index(i)); - renameVariable(table, i, constants.addUtf8Info("v" + (table.index(i) - firstIndex + 1))); - } - } - - private void renameLVTT(LocalVariableTypeAttribute typeTable, LocalVariableAttribute table) { - // rename args to the same names as in the LVT - for (int i = 0; i < typeTable.tableLength(); i++) { - renameVariable(typeTable, i, getNameIndex(table, typeTable.index(i))); - } - } - - private void renameVariable(LocalVariableAttribute table, int i, int stringId) { - // based off of LocalVariableAttribute.nameIndex() - ByteArray.write16bit(stringId, table.get(), i * 10 + 6); - } - - private int getNameIndex(LocalVariableAttribute table, int index) { - for (int i = 0; i < table.tableLength(); i++) { - if (table.index(i) == index) { - return table.nameIndex(i); - } - } - return 0; - } -} -- cgit v1.2.3