Merge pull request #403 from GraxCode/bytecode
Various bytecode disassembler fixes / additions.
This commit is contained in:
Konloch
GitHub
commit
b5664b2949
2 changed files with 332 additions and 326 deletions
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@ -1,37 +1,19 @@
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package the.bytecode.club.bytecodeviewer.decompilers.bytecode;
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package the.bytecode.club.bytecodeviewer.decompilers.bytecode;
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import eu.bibl.banalysis.asm.desc.OpcodeInfo;
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import eu.bibl.banalysis.asm.desc.OpcodeInfo;
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import org.apache.commons.text.StringEscapeUtils;
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import org.objectweb.asm.Opcodes;
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import org.objectweb.asm.Type;
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import org.objectweb.asm.tree.*;
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import the.bytecode.club.bytecodeviewer.BytecodeViewer;
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import java.io.BufferedWriter;
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import java.io.BufferedWriter;
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import java.io.File;
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import java.io.File;
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import java.io.FileWriter;
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import java.io.FileWriter;
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import java.io.IOException;
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import java.io.IOException;
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import java.lang.reflect.Modifier;
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import java.lang.reflect.Modifier;
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import java.util.ArrayList;
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import java.util.*;
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import java.util.Collections;
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import java.util.stream.Collectors;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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import org.apache.commons.text.StringEscapeUtils;
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import org.objectweb.asm.Type;
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import org.objectweb.asm.tree.AbstractInsnNode;
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import org.objectweb.asm.tree.FieldInsnNode;
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import org.objectweb.asm.tree.FrameNode;
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import org.objectweb.asm.tree.IincInsnNode;
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import org.objectweb.asm.tree.InsnNode;
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import org.objectweb.asm.tree.IntInsnNode;
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import org.objectweb.asm.tree.InvokeDynamicInsnNode;
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import org.objectweb.asm.tree.JumpInsnNode;
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import org.objectweb.asm.tree.LabelNode;
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import org.objectweb.asm.tree.LdcInsnNode;
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import org.objectweb.asm.tree.LineNumberNode;
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import org.objectweb.asm.tree.LookupSwitchInsnNode;
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import org.objectweb.asm.tree.MethodInsnNode;
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import org.objectweb.asm.tree.MethodNode;
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import org.objectweb.asm.tree.MultiANewArrayInsnNode;
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import org.objectweb.asm.tree.TableSwitchInsnNode;
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import org.objectweb.asm.tree.TypeInsnNode;
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import org.objectweb.asm.tree.VarInsnNode;
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import the.bytecode.club.bytecodeviewer.BytecodeViewer;
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/***************************************************************************
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/***************************************************************************
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* Bytecode Viewer (BCV) - Java & Android Reverse Engineering Suite *
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* Bytecode Viewer (BCV) - Java & Android Reverse Engineering Suite *
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@ -54,340 +36,361 @@ import the.bytecode.club.bytecodeviewer.BytecodeViewer;
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/**
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/**
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* @author Konloch
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* @author Konloch
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* @author Bibl
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* @author Bibl
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* @author GraxCode
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*/
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*/
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public class InstructionPrinter {
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public class InstructionPrinter implements Opcodes {
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/**
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/**
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* The MethodNode to print
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* The MethodNode to print
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**/
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**/
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private final MethodNode mNode;
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private final MethodNode mNode;
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private final TypeAndName[] args;
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private final TypeAndName[] args;
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protected int[] pattern;
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protected int[] pattern;
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protected boolean match;
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protected boolean match;
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protected List<AbstractInsnNode> matchedInsns;
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protected List<AbstractInsnNode> matchedInsns;
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protected Map<LabelNode, Integer> labels;
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protected Map<LabelNode, Integer> labels;
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private boolean firstLabel = false;
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private boolean firstLabel = false;
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private final List<String> info = new ArrayList<>();
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private final List<String> info = new ArrayList<>();
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public InstructionPrinter(MethodNode m, TypeAndName[] args) {
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public InstructionPrinter(MethodNode m, TypeAndName[] args) {
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this.args = args;
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this.args = args;
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mNode = m;
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mNode = m;
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labels = new HashMap<>();
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labels = new HashMap<>();
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// matchedInsns = new ArrayList<AbstractInsnNode>(); // ingnored because
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precalculateLabelIndexes(m);
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// match = false
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// matchedInsns = new ArrayList<AbstractInsnNode>(); // ingnored because
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match = false;
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// match = false
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match = false;
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}
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public InstructionPrinter(MethodNode m, InstructionPattern pattern, TypeAndName[] args) {
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this(m, args);
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InstructionSearcher searcher = new InstructionSearcher(m.instructions, pattern);
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match = searcher.search();
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if (match) {
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for (AbstractInsnNode[] ains : searcher.getMatches()) {
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Collections.addAll(matchedInsns, ains);
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}
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}
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}
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private void precalculateLabelIndexes(MethodNode m) {
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int lIdx = 0;
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for (AbstractInsnNode ain : m.instructions) {
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if (ain.getType() == AbstractInsnNode.LABEL) {
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labels.put((LabelNode) ain, lIdx++);
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}
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}
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}
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/**
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* Creates the print
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*
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* @return The print as an ArrayList
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*/
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public List<String> createPrint() {
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firstLabel = false;
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info.clear();
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for (AbstractInsnNode ain : mNode.instructions) {
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String line = printInstruction(ain);
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if (!line.isEmpty()) {
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if (match) if (matchedInsns.contains(ain)) line = " -> " + line;
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info.add(line);
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}
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}
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if (firstLabel && BytecodeViewer.viewer.appendBracketsToLabels.isSelected()) info.add("}");
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return info;
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}
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public String printInstruction(AbstractInsnNode ain) {
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String line = "";
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if (ain instanceof VarInsnNode) {
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line = printVarInsnNode((VarInsnNode) ain);
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} else if (ain instanceof IntInsnNode) {
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line = printIntInsnNode((IntInsnNode) ain);
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} else if (ain instanceof FieldInsnNode) {
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line = printFieldInsnNode((FieldInsnNode) ain);
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} else if (ain instanceof MethodInsnNode) {
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line = printMethodInsnNode((MethodInsnNode) ain);
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} else if (ain instanceof LdcInsnNode) {
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line = printLdcInsnNode((LdcInsnNode) ain);
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} else if (ain instanceof InsnNode) {
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line = printInsnNode((InsnNode) ain);
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} else if (ain instanceof JumpInsnNode) {
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line = printJumpInsnNode((JumpInsnNode) ain);
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} else if (ain instanceof LineNumberNode) {
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line = printLineNumberNode((LineNumberNode) ain);
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} else if (ain instanceof LabelNode) {
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if (firstLabel && BytecodeViewer.viewer.appendBracketsToLabels.isSelected()) info.add("}");
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LabelNode label = (LabelNode) ain;
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if (mNode.tryCatchBlocks != null) {
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List<TryCatchBlockNode> tcbs = mNode.tryCatchBlocks;
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String starting = tcbs.stream().filter(tcb -> tcb.start == label).map(tcb -> "start TCB" + tcbs.indexOf(tcb)).collect(Collectors.joining(", "));
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String ending = tcbs.stream().filter(tcb -> tcb.end == label).map(tcb -> "end TCB" + tcbs.indexOf(tcb)).collect(Collectors.joining(", "));
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String handlers = tcbs.stream().filter(tcb -> tcb.handler == label).map(tcb -> "handler TCB" + tcbs.indexOf(tcb)).collect(Collectors.joining(", "));
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if (!ending.isEmpty()) info.add("// " + ending);
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if (!starting.isEmpty()) info.add("// " + starting);
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if (!handlers.isEmpty()) info.add("// " + starting);
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}
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line = printLabelNode((LabelNode) ain);
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if (BytecodeViewer.viewer.appendBracketsToLabels.isSelected()) {
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if (!firstLabel) firstLabel = true;
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line += " {";
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}
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} else if (ain instanceof TypeInsnNode) {
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line = printTypeInsnNode((TypeInsnNode) ain);
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} else if (ain instanceof FrameNode) {
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line = printFrameNode((FrameNode) ain);
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} else if (ain instanceof IincInsnNode) {
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line = printIincInsnNode((IincInsnNode) ain);
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} else if (ain instanceof TableSwitchInsnNode) {
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line = printTableSwitchInsnNode((TableSwitchInsnNode) ain);
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} else if (ain instanceof LookupSwitchInsnNode) {
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line = printLookupSwitchInsnNode((LookupSwitchInsnNode) ain);
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} else if (ain instanceof InvokeDynamicInsnNode) {
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line = printInvokeDynamicInsNode((InvokeDynamicInsnNode) ain);
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} else if (ain instanceof MultiANewArrayInsnNode) {
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line = printMultiANewArrayInsNode((MultiANewArrayInsnNode) ain);
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} else {
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line += "UNADDED OPCODE: " + nameOpcode(ain.getOpcode()) + " " + ain;
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}
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}
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public InstructionPrinter(MethodNode m, InstructionPattern pattern,
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return line;
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TypeAndName[] args) {
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}
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this.args = args;
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mNode = m;
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protected String printVarInsnNode(VarInsnNode vin) {
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labels = new HashMap<>();
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StringBuilder sb = new StringBuilder();
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InstructionSearcher searcher = new InstructionSearcher(m.instructions, pattern);
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sb.append(nameOpcode(vin.getOpcode()));
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match = searcher.search();
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sb.append(" ");
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if (match) {
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sb.append(vin.var);
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for (AbstractInsnNode[] ains : searcher.getMatches()) {
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if (BytecodeViewer.viewer.debugHelpers.isSelected()) {
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Collections.addAll(matchedInsns, ains);
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if (vin.var == 0 && !Modifier.isStatic(mNode.access)) {
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}
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sb.append(" // reference to self");
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} else {
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final int refIndex = vin.var - (Modifier.isStatic(mNode.access) ? 0 : 1);
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if (refIndex >= 0 && refIndex < args.length - 1) {
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sb.append(" // reference to ").append(args[refIndex].name);
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}
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}
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}
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}
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}
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/**
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return sb.toString();
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* Creates the print
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}
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*
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* @return The print as an ArrayList
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*/
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public List<String> createPrint() {
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firstLabel = false;
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info.clear();
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for (AbstractInsnNode ain : mNode.instructions) {
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String line = printInstruction(ain);
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if (!line.isEmpty()) {
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if (match)
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if (matchedInsns.contains(ain))
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line = " -> " + line;
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info.add(line);
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protected String printIntInsnNode(IntInsnNode iin) {
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}
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return nameOpcode(iin.getOpcode()) + " " + iin.operand;
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}
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}
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if (firstLabel
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&& BytecodeViewer.viewer.appendBracketsToLabels.isSelected())
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protected String printFieldInsnNode(FieldInsnNode fin) {
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info.add("}");
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String desc = Type.getType(fin.desc).getClassName();
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return info;
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if (desc.equals("null")) desc = fin.desc;
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return nameOpcode(fin.getOpcode()) + " " + fin.owner + "." + fin.name + ":" + desc;
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}
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protected String printMethodInsnNode(MethodInsnNode min) {
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StringBuilder sb = new StringBuilder();
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sb.append(nameOpcode(min.getOpcode())).append(" ").append(min.owner).append(".").append(min.name);
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String desc = min.desc;
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try {
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if (Type.getType(min.desc) != null) desc = Type.getType(min.desc).getClassName();
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} catch (java.lang.AssertionError e) {
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//e.printStackTrace();
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} catch (java.lang.Exception e) {
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e.printStackTrace();
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}
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}
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public String printInstruction(AbstractInsnNode ain)
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if (desc == null || desc.equals("null")) desc = min.desc;
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{
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String line = "";
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if (ain instanceof VarInsnNode) {
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line = printVarInsnNode((VarInsnNode) ain);
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} else if (ain instanceof IntInsnNode) {
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line = printIntInsnNode((IntInsnNode) ain);
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} else if (ain instanceof FieldInsnNode) {
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line = printFieldInsnNode((FieldInsnNode) ain);
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} else if (ain instanceof MethodInsnNode) {
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line = printMethodInsnNode((MethodInsnNode) ain);
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} else if (ain instanceof LdcInsnNode) {
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line = printLdcInsnNode((LdcInsnNode) ain);
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} else if (ain instanceof InsnNode) {
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line = printInsnNode((InsnNode) ain);
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} else if (ain instanceof JumpInsnNode) {
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line = printJumpInsnNode((JumpInsnNode) ain);
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} else if (ain instanceof LineNumberNode) {
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line = printLineNumberNode((LineNumberNode) ain);
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} else if (ain instanceof LabelNode) {
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if (firstLabel
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&& BytecodeViewer.viewer.appendBracketsToLabels
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.isSelected())
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info.add("}");
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line = printLabelnode((LabelNode) ain);
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sb.append(desc);
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if (BytecodeViewer.viewer.appendBracketsToLabels.isSelected()) {
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return sb.toString();
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if (!firstLabel)
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}
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firstLabel = true;
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line += " {";
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}
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} else if (ain instanceof TypeInsnNode) {
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line = printTypeInsnNode((TypeInsnNode) ain);
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} else if (ain instanceof FrameNode) {
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line = printFrameNode((FrameNode) ain);
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} else if (ain instanceof IincInsnNode) {
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line = printIincInsnNode((IincInsnNode) ain);
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} else if (ain instanceof TableSwitchInsnNode) {
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line = printTableSwitchInsnNode((TableSwitchInsnNode) ain);
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} else if (ain instanceof LookupSwitchInsnNode) {
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line = printLookupSwitchInsnNode((LookupSwitchInsnNode) ain);
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} else if (ain instanceof InvokeDynamicInsnNode) {
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line = printInvokeDynamicInsNode((InvokeDynamicInsnNode) ain);
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} else if (ain instanceof MultiANewArrayInsnNode) {
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line = printMultiANewArrayInsNode((MultiANewArrayInsnNode) ain);
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} else {
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line += "UNADDED OPCODE: " + nameOpcode(ain.getOpcode()) + " "
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+ ain;
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}
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return line;
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protected String printLdcInsnNode(LdcInsnNode ldc) {
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if (ldc.cst instanceof String)
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return nameOpcode(ldc.getOpcode()) + " \"" + StringEscapeUtils.escapeJava(ldc.cst.toString()) + "\" (" + ldc.cst.getClass().getCanonicalName() + ")";
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return nameOpcode(ldc.getOpcode()) + " " + StringEscapeUtils.escapeJava(ldc.cst.toString()) + " (" + ldc.cst.getClass().getCanonicalName() + ")";
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}
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protected String printInsnNode(InsnNode in) {
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return nameOpcode(in.getOpcode());
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}
|
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protected String printJumpInsnNode(JumpInsnNode jin) {
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return nameOpcode(jin.getOpcode()) + " L" + resolveLabel(jin.label);
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}
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protected String printLineNumberNode(LineNumberNode lnn) {
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return "// line " + lnn.line;
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}
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protected String printLabelNode(LabelNode label) {
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return "L" + resolveLabel(label);
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}
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protected String printTypeInsnNode(TypeInsnNode tin) {
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try {
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String desc = tin.desc;
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try {
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||||||
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if (Type.getType(tin.desc) != null) desc = Type.getType(tin.desc).getClassName();
|
||||||
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if (desc.equals("null")) desc = tin.desc;
|
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} catch (java.lang.ArrayIndexOutOfBoundsException ignored) {
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|
||||||
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}
|
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return nameOpcode(tin.getOpcode()) + " " + desc;
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||||||
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} catch (Exception e) {
|
||||||
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return nameOpcode(tin.getOpcode()) + " " + tin.desc;
|
||||||
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}
|
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}
|
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protected String printIincInsnNode(IincInsnNode iin) {
|
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return nameOpcode(iin.getOpcode()) + " " + iin.var + " " + iin.incr;
|
||||||
|
}
|
||||||
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|
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protected String printTableSwitchInsnNode(TableSwitchInsnNode tin) {
|
||||||
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StringBuilder line = new StringBuilder(nameOpcode(tin.getOpcode()) + " \n");
|
||||||
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List<?> labels = tin.labels;
|
||||||
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int count = 0;
|
||||||
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for (int i = tin.min; i < tin.max + 1; i++) {
|
||||||
|
line.append(" val: ").append(i).append(" -> ").append("L").append(resolveLabel((LabelNode) labels.get(count++))).append("\n");
|
||||||
|
}
|
||||||
|
line.append(" default" + " -> L").append(resolveLabel(tin.dflt));
|
||||||
|
return line.toString();
|
||||||
|
}
|
||||||
|
|
||||||
|
protected String printLookupSwitchInsnNode(LookupSwitchInsnNode lin) {
|
||||||
|
StringBuilder line = new StringBuilder(nameOpcode(lin.getOpcode()) + ": \n");
|
||||||
|
List<?> keys = lin.keys;
|
||||||
|
List<?> labels = lin.labels;
|
||||||
|
|
||||||
|
for (int i = 0; i < keys.size(); i++) {
|
||||||
|
int key = (Integer) keys.get(i);
|
||||||
|
LabelNode label = (LabelNode) labels.get(i);
|
||||||
|
line.append(" val: ").append(key).append(" -> ").append("L").append(resolveLabel(label)).append("\n");
|
||||||
}
|
}
|
||||||
|
|
||||||
protected String printVarInsnNode(VarInsnNode vin) {
|
line.append(" default" + " -> L").append(resolveLabel(lin.dflt));
|
||||||
StringBuilder sb = new StringBuilder();
|
return line.toString();
|
||||||
sb.append(nameOpcode(vin.getOpcode()));
|
}
|
||||||
sb.append(vin.var);
|
|
||||||
if (BytecodeViewer.viewer.debugHelpers.isSelected()) {
|
|
||||||
if (vin.var == 0 && !Modifier.isStatic(mNode.access)) {
|
|
||||||
sb.append(" // reference to self");
|
|
||||||
} else {
|
|
||||||
final int refIndex = vin.var
|
|
||||||
- (Modifier.isStatic(mNode.access) ? 0 : 1);
|
|
||||||
if (refIndex >= 0 && refIndex < args.length - 1) {
|
|
||||||
sb.append(" // reference to ").append(args[refIndex].name);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
return sb.toString();
|
protected String printInvokeDynamicInsNode(InvokeDynamicInsnNode idin) {
|
||||||
|
StringBuilder sb = new StringBuilder();
|
||||||
|
sb.append(nameOpcode(idin.getOpcode())).append(" ").append(idin.bsm.getOwner()).append('.').append(idin.bsm.getName()).append(idin.bsm.getDesc()).append(" : ").append(idin.name).append(idin.desc);
|
||||||
|
|
||||||
|
if (idin.bsmArgs != null) {
|
||||||
|
for (Object o : idin.bsmArgs) {
|
||||||
|
sb.append(" ");
|
||||||
|
sb.append(o.toString());
|
||||||
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
protected String printIntInsnNode(IntInsnNode iin) {
|
return sb.toString();
|
||||||
return nameOpcode(iin.getOpcode()) + " " + iin.operand;
|
}
|
||||||
|
|
||||||
|
protected String printMultiANewArrayInsNode(MultiANewArrayInsnNode mana) {
|
||||||
|
return nameOpcode(mana.getOpcode()) + " " + mana.dims + " : " + mana.desc;
|
||||||
|
}
|
||||||
|
|
||||||
|
private String printFrameNode(FrameNode frame) {
|
||||||
|
StringBuilder sb = new StringBuilder();
|
||||||
|
sb.append(nameFrameType(frame.type)).append(" ");
|
||||||
|
sb.append("(Locals");
|
||||||
|
if (frame.local != null && !frame.local.isEmpty()) {
|
||||||
|
sb.append("[").append(frame.local.size()).append("]: ");
|
||||||
|
sb.append(frame.local.stream().map(this::printFrameObject).collect(Collectors.joining(", ")));
|
||||||
|
} else {
|
||||||
|
sb.append("[0]");
|
||||||
}
|
}
|
||||||
|
sb.append(") ");
|
||||||
|
|
||||||
protected String printFieldInsnNode(FieldInsnNode fin) {
|
sb.append("(Stack");
|
||||||
String desc = Type.getType(fin.desc).getClassName();
|
if (frame.stack != null && !frame.stack.isEmpty()) {
|
||||||
if (desc.equals("null"))
|
sb.append("[").append(frame.stack.size()).append("]: ");
|
||||||
desc = fin.desc;
|
sb.append(frame.stack.stream().map(this::printFrameObject).collect(Collectors.joining(", ")));
|
||||||
return nameOpcode(fin.getOpcode()) + " " + fin.owner + "." + fin.name
|
} else {
|
||||||
+ ":" + desc;
|
sb.append("[0]");
|
||||||
}
|
}
|
||||||
|
sb.append(") ");
|
||||||
|
|
||||||
protected String printMethodInsnNode(MethodInsnNode min) {
|
return sb.toString();
|
||||||
StringBuilder sb = new StringBuilder();
|
}
|
||||||
sb.append(nameOpcode(min.getOpcode())).append(" ").append(min.owner).append(".").append(min.name);
|
|
||||||
|
|
||||||
String desc = min.desc;
|
private String printFrameObject(Object obj) {
|
||||||
try {
|
if (obj instanceof LabelNode) return "label [L" + resolveLabel((LabelNode) obj) + "]";
|
||||||
if (Type.getType(min.desc) != null)
|
if (obj instanceof Integer) {
|
||||||
desc = Type.getType(min.desc).getClassName();
|
switch ((int) obj) {
|
||||||
} catch (java.lang.AssertionError e) {
|
case 0:
|
||||||
//e.printStackTrace();
|
return "top";
|
||||||
} catch (java.lang.Exception e) {
|
case 1:
|
||||||
e.printStackTrace();
|
return "int";
|
||||||
}
|
case 2:
|
||||||
|
return "float";
|
||||||
if (desc == null || desc.equals("null"))
|
case 3:
|
||||||
desc = min.desc;
|
return "double";
|
||||||
|
case 4:
|
||||||
sb.append(desc);
|
return "long";
|
||||||
|
case 5:
|
||||||
return sb.toString();
|
return "null";
|
||||||
|
case 6:
|
||||||
|
return "uninitialized this";
|
||||||
|
default:
|
||||||
|
return "unknown";
|
||||||
|
}
|
||||||
}
|
}
|
||||||
|
if (obj instanceof String) return "reference [" + obj + "]";
|
||||||
|
return "unknown [" + obj.toString() + "]";
|
||||||
|
}
|
||||||
|
|
||||||
protected String printLdcInsnNode(LdcInsnNode ldc) {
|
private String nameFrameType(int type) {
|
||||||
if (ldc.cst instanceof String)
|
switch (type) {
|
||||||
return nameOpcode(ldc.getOpcode()) + " \""
|
case F_NEW:
|
||||||
+ StringEscapeUtils.escapeJava(ldc.cst.toString()) + "\" ("
|
return " f_new";
|
||||||
+ ldc.cst.getClass().getCanonicalName() + ")";
|
case F_FULL:
|
||||||
|
return " f_full";
|
||||||
return nameOpcode(ldc.getOpcode()) + " "
|
case F_APPEND:
|
||||||
+ StringEscapeUtils.escapeJava(ldc.cst.toString()) + " ("
|
return " f_append";
|
||||||
+ ldc.cst.getClass().getCanonicalName() + ")";
|
case F_CHOP:
|
||||||
|
return " f_chop";
|
||||||
|
case F_SAME:
|
||||||
|
return " f_same";
|
||||||
|
case F_SAME1:
|
||||||
|
return " f_same1";
|
||||||
|
default:
|
||||||
|
return " f_unknown" + type;
|
||||||
}
|
}
|
||||||
|
}
|
||||||
|
|
||||||
protected String printInsnNode(InsnNode in) {
|
protected String nameOpcode(int opcode) {
|
||||||
return nameOpcode(in.getOpcode());
|
return " " + OpcodeInfo.OPCODES.get(opcode).toLowerCase();
|
||||||
}
|
}
|
||||||
|
|
||||||
protected String printJumpInsnNode(JumpInsnNode jin) {
|
protected int resolveLabel(LabelNode label) {
|
||||||
return nameOpcode(jin.getOpcode()) + " L"
|
if (labels.containsKey(label)) {
|
||||||
+ resolveLabel(jin.label);
|
return labels.get(label);
|
||||||
}
|
} else {
|
||||||
|
/*int newLabelIndex = labels.size() + 1;
|
||||||
protected String printLineNumberNode(LineNumberNode lnn) {
|
|
||||||
return "// line " + lnn.line;
|
|
||||||
}
|
|
||||||
|
|
||||||
protected String printLabelnode(LabelNode label) {
|
|
||||||
return "L" + resolveLabel(label);
|
|
||||||
}
|
|
||||||
|
|
||||||
protected String printTypeInsnNode(TypeInsnNode tin) {
|
|
||||||
try {
|
|
||||||
String desc = tin.desc;
|
|
||||||
try {
|
|
||||||
if (Type.getType(tin.desc) != null)
|
|
||||||
desc = Type.getType(tin.desc).getClassName();
|
|
||||||
|
|
||||||
if (desc.equals("null"))
|
|
||||||
desc = tin.desc;
|
|
||||||
} catch (java.lang.ArrayIndexOutOfBoundsException ignored) {
|
|
||||||
|
|
||||||
}
|
|
||||||
return nameOpcode(tin.getOpcode()) + " " + desc;
|
|
||||||
} catch (Exception e) {
|
|
||||||
return nameOpcode(tin.getOpcode()) + " " + tin.desc;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
protected String printIincInsnNode(IincInsnNode iin) {
|
|
||||||
return nameOpcode(iin.getOpcode()) + " " + iin.var + " " + iin.incr;
|
|
||||||
}
|
|
||||||
|
|
||||||
protected String printTableSwitchInsnNode(TableSwitchInsnNode tin) {
|
|
||||||
StringBuilder line = new StringBuilder(nameOpcode(tin.getOpcode()) + " \n");
|
|
||||||
List<?> labels = tin.labels;
|
|
||||||
int count = 0;
|
|
||||||
for (int i = tin.min; i < tin.max + 1; i++) {
|
|
||||||
line.append(" val: ").append(i).append(" -> ").append("L")
|
|
||||||
.append(resolveLabel((LabelNode) labels.get(count++))).append("\n");
|
|
||||||
}
|
|
||||||
line.append(" default" + " -> L").append(resolveLabel(tin.dflt));
|
|
||||||
return line.toString();
|
|
||||||
}
|
|
||||||
|
|
||||||
protected String printLookupSwitchInsnNode(LookupSwitchInsnNode lin) {
|
|
||||||
StringBuilder line = new StringBuilder(nameOpcode(lin.getOpcode()) + ": \n");
|
|
||||||
List<?> keys = lin.keys;
|
|
||||||
List<?> labels = lin.labels;
|
|
||||||
|
|
||||||
for (int i = 0; i < keys.size(); i++) {
|
|
||||||
int key = (Integer) keys.get(i);
|
|
||||||
LabelNode label = (LabelNode) labels.get(i);
|
|
||||||
line.append(" val: ").append(key).append(" -> ").append("L")
|
|
||||||
.append(resolveLabel(label)).append("\n");
|
|
||||||
}
|
|
||||||
|
|
||||||
line.append(" default" + " -> L").append(resolveLabel(lin.dflt));
|
|
||||||
return line.toString();
|
|
||||||
}
|
|
||||||
|
|
||||||
protected String printInvokeDynamicInsNode(InvokeDynamicInsnNode idin) {
|
|
||||||
StringBuilder sb = new StringBuilder();
|
|
||||||
sb.append(nameOpcode(idin.getOpcode())).append(" ").append(idin.bsm.getOwner()).append('.')
|
|
||||||
.append(idin.bsm.getName()).append(idin.bsm.getDesc()).append(" : ")
|
|
||||||
.append(idin.name).append(idin.desc);
|
|
||||||
|
|
||||||
if (idin.bsmArgs != null) {
|
|
||||||
for (Object o : idin.bsmArgs) {
|
|
||||||
sb.append(" ");
|
|
||||||
sb.append(o.toString());
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
return sb.toString();
|
|
||||||
}
|
|
||||||
|
|
||||||
protected String printMultiANewArrayInsNode(MultiANewArrayInsnNode mana) {
|
|
||||||
return nameOpcode(mana.getOpcode()) + " " + mana.dims + " : " + mana.desc;
|
|
||||||
}
|
|
||||||
|
|
||||||
private String printFrameNode(FrameNode frame) {
|
|
||||||
StringBuilder sb = new StringBuilder();
|
|
||||||
sb.append(nameOpcode(frame.getOpcode())).append(" ");
|
|
||||||
|
|
||||||
sb.append("(Locals");
|
|
||||||
if (frame.local != null
|
|
||||||
&& frame.local.size() > 0) {
|
|
||||||
sb.append("[").append(frame.local.size()).append("]:");
|
|
||||||
sb.append(" ");
|
|
||||||
sb.append(frame.local.get(0).toString());
|
|
||||||
if (frame.local.size() > 1) {
|
|
||||||
for (int i = 1; i < frame.local.size(); i++) {
|
|
||||||
sb.append(", ");
|
|
||||||
sb.append(frame.local.get(i).toString());
|
|
||||||
}
|
|
||||||
}
|
|
||||||
} else {
|
|
||||||
sb.append("[0]: null");
|
|
||||||
}
|
|
||||||
sb.append(") ");
|
|
||||||
|
|
||||||
sb.append("(Stack");
|
|
||||||
if (frame.stack != null
|
|
||||||
&& frame.stack.size() > 0) {
|
|
||||||
sb.append("[").append(frame.stack.size()).append("]:");
|
|
||||||
sb.append(" ");
|
|
||||||
sb.append(frame.stack.get(0).toString());
|
|
||||||
if (frame.stack.size() > 1) {
|
|
||||||
for (int i = 1; i < frame.stack.size(); i++) {
|
|
||||||
sb.append(", ");
|
|
||||||
sb.append(frame.stack.get(i).toString());
|
|
||||||
}
|
|
||||||
}
|
|
||||||
} else {
|
|
||||||
sb.append("[0]: null");
|
|
||||||
}
|
|
||||||
sb.append(")");
|
|
||||||
|
|
||||||
return sb.toString();
|
|
||||||
}
|
|
||||||
|
|
||||||
protected String nameOpcode(int opcode) {
|
|
||||||
return " " + OpcodeInfo.OPCODES.get(opcode).toLowerCase();
|
|
||||||
}
|
|
||||||
|
|
||||||
protected int resolveLabel(LabelNode label) {
|
|
||||||
if (labels.containsKey(label)) {
|
|
||||||
return labels.get(label);
|
|
||||||
} else {
|
|
||||||
int newLabelIndex = labels.size() + 1;
|
|
||||||
labels.put(label, newLabelIndex);
|
labels.put(label, newLabelIndex);
|
||||||
return newLabelIndex;
|
return newLabelIndex;*/
|
||||||
}
|
throw new IllegalStateException("LabelNode index not found. (Label not in InsnList?)");
|
||||||
}
|
}
|
||||||
|
}
|
||||||
|
|
||||||
public static void saveTo(File file, InstructionPrinter printer) {
|
public static void saveTo(File file, InstructionPrinter printer) {
|
||||||
try (FileWriter fw = new FileWriter(file);
|
try (FileWriter fw = new FileWriter(file); BufferedWriter bw = new BufferedWriter(fw)) {
|
||||||
BufferedWriter bw = new BufferedWriter(fw)) {
|
for (String s : printer.createPrint()) {
|
||||||
for (String s : printer.createPrint()) {
|
bw.write(s);
|
||||||
bw.write(s);
|
bw.newLine();
|
||||||
bw.newLine();
|
}
|
||||||
}
|
} catch (IOException e) {
|
||||||
} catch (IOException e) {
|
BytecodeViewer.handleException(e);
|
||||||
BytecodeViewer.handleException(e);
|
|
||||||
}
|
|
||||||
}
|
}
|
||||||
|
}
|
||||||
|
|
||||||
}
|
}
|
||||||
|
|
|
||||||
|
|
@ -57,6 +57,9 @@ public class MethodNodeDecompiler {
|
||||||
if (m.name.equals("<init>")) {
|
if (m.name.equals("<init>")) {
|
||||||
sb.append(class_);
|
sb.append(class_);
|
||||||
} else if (!m.name.equals("<clinit>")) {
|
} else if (!m.name.equals("<clinit>")) {
|
||||||
|
Type returnType = Type.getReturnType(m.desc);
|
||||||
|
sb.append(returnType.getClassName());
|
||||||
|
sb.append(" ");
|
||||||
sb.append(m.name);
|
sb.append(m.name);
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
|
||||||
Loading…
Add table
Add a link
Reference in a new issue