From 541f1446ffa01737176a2d18bb4928452fbc13fb Mon Sep 17 00:00:00 2001 From: jochen Date: Fri, 9 Apr 1999 08:16:52 +0000 Subject: [PATCH] add getBytecode() (for Interpreter) git-svn-id: https://svn.code.sf.net/p/jode/code/trunk@552 379699f6-c40d-0410-875b-85095c16579e --- jode/jode/obfuscator/MethodIdentifier.java | 70 +++++++++++++++------- 1 file changed, 47 insertions(+), 23 deletions(-) diff --git a/jode/jode/obfuscator/MethodIdentifier.java b/jode/jode/obfuscator/MethodIdentifier.java index 88f82b6..df9bf14 100644 --- a/jode/jode/obfuscator/MethodIdentifier.java +++ b/jode/jode/obfuscator/MethodIdentifier.java @@ -40,38 +40,61 @@ public class MethodIdentifier extends Identifier implements Opcodes { ///#ifdef JDK12 /// /** +/// * The byte code for this method, or null if there isn't any. +/// */ +/// SoftReference byteCodeRef; +/// /** /// * The code analyzer of this method, or null if there isn't any. /// */ /// SoftReference codeAnalyzerRef; ///#else + /** + * The byte code for this method, or null if there isn't any. + */ + BytecodeInfo byteCode; /** * The code analyzer of this method, or null if there isn't any. */ CodeAnalyzer codeAnalyzer; ///#endif - public CodeAnalyzer getCodeAnalyzer() { + public BytecodeInfo getBytecode() { ///#ifdef JDK12 -/// if (codeAnalyzerRef != null && codeAnalyzerRef.get() != null) -/// return (CodeAnalyzer) codeAnalyzerRef.get(); -/// CodeAnalyzer codeAnalyzer = null; +/// if (byteCodeRef != null && byteCodeRef.get() != null) +/// return (BytecodeInfo) byteCodeRef.get(); +/// BytecodeInfo byteCode = null; ///#else - if (codeAnalyzer != null) - return codeAnalyzer; + if (byteCode != null) + return byteCode; ///#endif - AttributeInfo codeattr = info.findAttribute("Code"); - BytecodeInfo code = null; try { if (codeattr != null) { DataInputStream stream = new DataInputStream (new ByteArrayInputStream(codeattr.getContents())); - code = new BytecodeInfo(); - code.read(clazz.info.getConstantPool(), stream); + byteCode = new BytecodeInfo(); + byteCode.read(clazz.info.getConstantPool(), stream); +///#ifdef JDK12 +/// byteCodeRef = new SoftReference(byteCode); +///#endif } } catch (IOException ex) { ex.printStackTrace(Obfuscator.err); } + return byteCode; + } + + public CodeAnalyzer getCodeAnalyzer() { +///#ifdef JDK12 +/// if (codeAnalyzerRef != null && codeAnalyzerRef.get() != null) +/// return (CodeAnalyzer) codeAnalyzerRef.get(); +/// CodeAnalyzer codeAnalyzer = null; +///#else + if (codeAnalyzer != null) + return codeAnalyzer; +///#endif + + BytecodeInfo code = getBytecode(); if (code != null) { codeAnalyzer = new ConstantAnalyzer(code, this); ///#ifdef JDK12 @@ -197,7 +220,7 @@ public class MethodIdentifier extends Identifier implements Opcodes { int nameIndex; int descriptorIndex; int codeIndex; - BytecodeInfo bytecode; + BytecodeInfo strippedBytecode; byte[] code; int exceptionsIndex; int[] excIndices; @@ -211,22 +234,23 @@ public class MethodIdentifier extends Identifier implements Opcodes { */ public void doCodeTransformations(GrowableConstantPool gcp) { if (getCodeAnalyzer() != null) { - bytecode = getCodeAnalyzer().stripCode(); -// bytecode.dumpCode(Obfuscator.err); + strippedBytecode = getCodeAnalyzer().stripCode(); +// strippedBytecode.dumpCode(Obfuscator.err); /* XXX This should be in a if (Obfuscator.distributeLocals) */ - LocalOptimizer localOpt = new LocalOptimizer(bytecode); + LocalOptimizer localOpt = new LocalOptimizer(strippedBytecode); localOpt.calcLocalInfo(); localOpt.stripLocals(); localOpt.distributeLocals(); // if (Obfuscator.isDebugging) // localOpt.dumpLocals(); -// bytecode.dumpCode(Obfuscator.err); +// strippedBytecode.dumpCode(Obfuscator.err); - RemovePopAnalyzer remPop = new RemovePopAnalyzer(bytecode, this); + RemovePopAnalyzer remPop = + new RemovePopAnalyzer(strippedBytecode, this); remPop.stripCode(); -// bytecode.dumpCode(Obfuscator.err); +// strippedBytecode.dumpCode(Obfuscator.err); - for (Instruction instr = bytecode.getFirstInstr(); + for (Instruction instr = strippedBytecode.getFirstInstr(); instr != null; instr = instr.nextByAddr) { switch (instr.opcode) { case opc_invokespecial: @@ -287,7 +311,7 @@ public class MethodIdentifier extends Identifier implements Opcodes { } } - Handler[] handlers = bytecode.getExceptionHandlers(); + Handler[] handlers = strippedBytecode.getExceptionHandlers(); for (int i=0; i< handlers.length; i++) { if (handlers[i].type != null) { ClassIdentifier ci = (ClassIdentifier) @@ -297,7 +321,7 @@ public class MethodIdentifier extends Identifier implements Opcodes { } } - bytecode.prepareWriting(gcp); + strippedBytecode.prepareWriting(gcp); } } @@ -306,18 +330,18 @@ public class MethodIdentifier extends Identifier implements Opcodes { descriptorIndex = gcp.putUTF(clazz.bundle.getTypeAlias(getType())); codeIndex = 0; - if (bytecode != null) { + if (strippedBytecode != null) { ByteArrayOutputStream baos = new ByteArrayOutputStream(); DataOutputStream output = new DataOutputStream(baos); try { - bytecode.writeCode(gcp, clazz.bundle, output); + strippedBytecode.writeCode(gcp, clazz.bundle, output); output.close(); code = baos.toByteArray(); codeIndex = gcp.putUTF("Code"); } catch (IOException ex) { code = null; } - bytecode = null; + strippedBytecode = null; } if (exceptions != null) { exceptionsIndex = gcp.putUTF("Exceptions");