org.objectweb.asm.tree.AbstractInsnNode类的使用及代码示例

x33g5p2x  于2022-01-15 转载在 其他  
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本文整理了Java中org.objectweb.asm.tree.AbstractInsnNode类的一些代码示例，展示了AbstractInsnNode类的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。AbstractInsnNode类的具体详情如下：
包路径：org.objectweb.asm.tree.AbstractInsnNode
类名称：AbstractInsnNode

AbstractInsnNode介绍

[英]A node that represents a bytecode instruction. An instruction can appear at most once in at most one InsnList at a time.
[中]表示字节码指令的节点。一条指令一次最多只能在一个InsnList中出现一次。

代码示例

代码示例来源：origin: pxb1988/dex2jar

@Override
public JvmValue newOperation(AbstractInsnNode insn) throws AnalyzerException {
  switch (insn.getOpcode()) {
    case ACONST_NULL:
      return b(1, Exprs.nNull());
    case ICONST_4:
    case ICONST_5:
      return b(1, Exprs.nInt(insn.getOpcode() - ICONST_0));
    case LCONST_0:
    case LCONST_1:
      return b(2, Exprs.nLong(insn.getOpcode() - LCONST_0));
    case FCONST_0:
    case FCONST_1:
    case FCONST_2:
      return b(1, Exprs.nFloat(insn.getOpcode() - FCONST_0));
    case DCONST_0:
    case DCONST_1:
      return b(2, Exprs.nDouble(insn.getOpcode() - DCONST_0));
    case BIPUSH:
    case SIPUSH:
    case GETSTATIC:
      FieldInsnNode fin = (FieldInsnNode) insn;
      return b(Type.getType(fin.desc).getSize(), Exprs.nStaticField("L" + fin.owner + ";", fin.name,
          fin.desc));
    case NEW:

代码示例来源：origin: pxb1988/dex2jar

IrMethod convert0(String owner, MethodNode methodNode) throws AnalyzerException {
  this.methodNode = methodNode;
  target = populate(owner, methodNode);
  if (methodNode.instructions.size() == 0) {
    return target;
  BitSet[] exBranch = new BitSet[insnList.size()];
  parentCount = new int[insnList.size()];
    for (TryCatchBlockNode tcb : methodNode.tryCatchBlocks) {
      target.traps.add(new Trap(getLabel(tcb.start), getLabel(tcb.end), new LabelStmt[]{getLabel(tcb.handler)},
          new String[]{tcb.type == null ? null : Type.getObjectType(tcb.type).getDescriptor()}));
      int handlerIdx = insnList.indexOf(tcb.handler);
      handlers.set(handlerIdx);
      for (AbstractInsnNode p = tcb.start.getNext(); p != tcb.end; p = p.getNext()) {
        BitSet x = exBranch[insnList.indexOf(p)];
      if (p.getType() == AbstractInsnNode.LABEL) {
        stmts.add(getLabel((LabelNode) p));

代码示例来源：origin: pxb1988/dex2jar

TraceMethodVisitor mv = new TraceMethodVisitor(t);
String format = "%05d %-" + (method.maxStack + method.maxLocals + 6) + "s|%s";
for (int j = 0; j < method.instructions.size(); ++j) {
  method.instructions.get(j).accept(mv);

代码示例来源：origin: pxb1988/dex2jar

private void cleanDebug(MethodNode mn) {
  for (AbstractInsnNode p = mn.instructions.getFirst(); p != null; ) {
    if (p.getType() == AbstractInsnNode.LINE) {
      AbstractInsnNode q = p.getNext();
      mn.instructions.remove(p);
      p = q;
    } else {
      p = p.getNext();
    }
  }
  mn.localVariables = null;
}

代码示例来源：origin: pxb1988/dex2jar

@Override
  public void execute(AbstractInsnNode insn, Interpreter<JvmValue> interpreter) throws AnalyzerException {
    if (insn.getType() == AbstractInsnNode.FRAME || insn.getType() == AbstractInsnNode.LINE || insn.getType() == AbstractInsnNode.LABEL) {
      return;
    }
    if (insn.getOpcode() == Opcodes.RETURN) {
      interpreter.returnOperation(insn, null, null);
    } else if (insn.getOpcode() == Opcodes.GOTO) {
      interpreter.unaryOperation(insn, null);
    } else if (insn.getOpcode() == RET) {
      throw new RuntimeException("not support yet!");
    } else {
      super.execute(insn, interpreter);
    }
  }
}

代码示例来源：origin: pxb1988/dex2jar

private void initParentCount(int[] parentCount) {
  parentCount[0] = 1;
  for (AbstractInsnNode p = insnList.getFirst(); p != null; p = p.getNext()) {
    if (p.getType() == AbstractInsnNode.JUMP_INSN) {
      JumpInsnNode jump = (JumpInsnNode) p;
      parentCount[insnList.indexOf(jump.label)]++;
    int op = p.getOpcode();
    if (op == Opcodes.TABLESWITCH || op == Opcodes.LOOKUPSWITCH) {
      if (op == Opcodes.TABLESWITCH) {
        TableSwitchInsnNode tsin = (TableSwitchInsnNode) p;
        for (LabelNode label : tsin.labels) {
          parentCount[insnList.indexOf(label)]++;
        parentCount[insnList.indexOf(tsin.dflt)]++;
      AbstractInsnNode next = p.getNext();
      if(next!=null) {
        parentCount[insnList.indexOf(p.getNext())]++;

代码示例来源：origin: EvoSuite/evosuite

continue;
Type type = Type.getType(field.getType());
logger.info("Checking replacement field variable " + field.getName());
  continue;
if (type.getDescriptor().equals(desc)) {
  logger.info("Adding replacement field variable " + field.getName());
  InsnList list = new InsnList();
  if (node.getOpcode() == Opcodes.GETFIELD) {
    list.add(new InsnNode(Opcodes.POP)); // Remove field owner from stack
    list.add(new FieldInsnNode(Opcodes.GETSTATIC,
        className.replace('.', '/'), field.getName(),
        type.getDescriptor()));
  else {
    list.add(new VarInsnNode(Opcodes.ALOAD, 0)); // this

代码示例来源：origin: com.amazon.device.tools.build/builder

Type returnType = Type.getReturnType(methodNode.desc);
InsnList instructions = methodNode.instructions;
  for (AbstractInsnNode instruction : instructions.toArray()) {
    if (!deadCode) {
      if (instruction.getOpcode() == Opcodes.INVOKESPECIAL) {
        instructions.insert(instruction, new InsnNode(Opcodes.RETURN));
      instructions.remove(instruction);
      instructions.add(new InsnNode(Opcodes.ICONST_0));
    } else if (returnType.equals(Type.LONG_TYPE)) {
      instructions.add(new InsnNode(Opcodes.LCONST_0));
    } else if (returnType.equals(Type.FLOAT_TYPE)) {
      instructions.add(new InsnNode(Opcodes.FCONST_0));
    } else if (returnType.equals(Type.DOUBLE_TYPE)) {

代码示例来源：origin: pxb1988/dex2jar

values[i] = getLocal(xvalues.get(i));
if (insn.getOpcode() == MULTIANEWARRAY) {
  throw new UnsupportedOperationException("Not supported yet.");
} else {
  MethodInsnNode mi = (MethodInsnNode) insn;
  com.googlecode.dex2jar.ir.expr.Value v = null;
  String ret = Type.getReturnType(mi.desc).getDescriptor();
  String owner = "L" + mi.owner + ";";
  String ps[] = toDescArray(Type.getArgumentTypes(mi.desc));
  switch (insn.getOpcode()) {
    case INVOKEVIRTUAL:
      v = Exprs.nInvokeVirtual(values, owner, mi.name, ps, ret);

代码示例来源：origin: org.parboiled/parboiled-java

public void process(ParserClassNode classNode, RuleMethod method) throws Exception {
  checkArgNotNull(classNode, "classNode");
  checkArgNotNull(method, "method");
  InsnList instructions = method.instructions;
  AbstractInsnNode ret = instructions.getLast();
  while (ret.getOpcode() != ARETURN) {
    ret = ret.getPrevious();
  }
  // stack: <Matcher>
  instructions.insertBefore(ret, new TypeInsnNode(NEW, VAR_FRAMING_MATCHER.getInternalName()));
  // stack: <Matcher> :: <VarFramingMatcher>
  instructions.insertBefore(ret, new InsnNode(DUP_X1));
  // stack: <VarFramingMatcher> :: <Matcher> :: <VarFramingMatcher>
  instructions.insertBefore(ret, new InsnNode(SWAP));
  // stack: <VarFramingMatcher> :: <VarFramingMatcher> :: <Matcher>
  createVarFieldArray(method, instructions, ret);
  // stack: <VarFramingMatcher> :: <VarFramingMatcher> :: <Matcher> :: <VarFieldArray>
  instructions.insertBefore(ret, new MethodInsnNode(INVOKESPECIAL, VAR_FRAMING_MATCHER.getInternalName(),
      "<init>", '(' + RULE_DESC + '[' + VAR_DESC + ")V", false));
  // stack: <VarFramingMatcher>
  method.setBodyRewritten();
}

代码示例来源：origin: EvoSuite/evosuite

private void addObjectInstrumentation(BytecodeInstruction instruction, InsnList instrumentation, MethodNode mn) {
  if(instruction.isLocalVariableDefinition()) {
    if(instruction.getASMNode().getOpcode() == Opcodes.ALOAD) {
      instrumentation.add(new InsnNode(Opcodes.DUP));
    } else {
      instrumentation.add(new InsnNode(Opcodes.ACONST_NULL));
    if(instruction.getASMNode().getOpcode() == Opcodes.ASTORE) {
      instrumentation.add(new InsnNode(Opcodes.DUP));
    } else {
      instrumentation.add(new InsnNode(Opcodes.ACONST_NULL));
  } else if(instruction.isFieldNodeDU()) {
    Type type = Type.getType(instruction.getFieldType());
    if(type.getSort() == Type.OBJECT) {
      instrumentation.add(new InsnNode(Opcodes.DUP));
    } else {
    Type type = Type.getReturnType(instruction.getMethodCallDescriptor());
    if(type.getSort() == Type.OBJECT) {
      instrumentation.add(new InsnNode(Opcodes.DUP));

代码示例来源：origin: org.activecomponents.jadex/jadex-kernel-bdiv3

Type[] args = Type.getArgumentTypes(mn.desc);
InsnList nl = new InsnList();
nl.add(new VarInsnNode(Opcodes.ALOAD, 0)); // loads the object
nl.add(new FieldInsnNode(Opcodes.GETFIELD, iclname, AGENT_FIELD_NAME, Type.getDescriptor(IInternalAccess.class)));
nl.add(new LdcInsnNode(belname));
nl.add(new MethodInsnNode(Opcodes.INVOKESTATIC, "jadex/bdiv3/features/impl/BDIAgentFeature", "unobserveValue", 
  nl.add(new InsnNode(Opcodes.ACONST_NULL));
nl.add(new InsnNode(Opcodes.ACONST_NULL)); // oldvalue ?
nl.add(new InsnNode(Opcodes.ACONST_NULL)); // no index/key
nl.add(new VarInsnNode(Opcodes.ALOAD, 0)); // loads the agent object
nl.add(new FieldInsnNode(Opcodes.GETFIELD, iclname, AGENT_FIELD_NAME, Type.getDescriptor(IInternalAccess.class)));
nl.add(new LdcInsnNode(belname));
for(n = l.getLast(); n.getOpcode()!=Opcodes.RETURN; n = n.getPrevious())

代码示例来源：origin: co.paralleluniverse/quasar

@Override
public BasicValue binaryOperation(AbstractInsnNode insn, BasicValue value1, BasicValue value2) throws AnalyzerException {
  if(insn.getOpcode() == Opcodes.AALOAD) {
    Type t1 = value1.getType();
    if(t1 == null || t1.getSort() != Type.ARRAY) {
      throw new AnalyzerException(insn, "AALOAD needs an array as first parameter");
    }
    
    Type resultType = Type.getType(t1.getDescriptor().substring(1));
    return new BasicValue(resultType);
  }
  return super.binaryOperation(insn, value1, value2);
}

代码示例来源：origin: com.android.tools.lint/lint-api

@Nullable
private static MethodInsnNode findConstructorInvocation(
    @NonNull MethodNode method,
    @NonNull String className) {
  InsnList nodes = method.instructions;
  for (int i = 0, n = nodes.size(); i < n; i++) {
    AbstractInsnNode instruction = nodes.get(i);
    if (instruction.getOpcode() == Opcodes.INVOKESPECIAL) {
      MethodInsnNode call = (MethodInsnNode) instruction;
      if (className.equals(call.owner)) {
        return call;
      }
    }
  }
  return null;
}

代码示例来源：origin: jooby-project/jooby

|| getOrCreateKotlinClass().test(node)) {
  String owner = Type.getReturnType(node.desc).getClassName();
  AbstractInsnNode prev = node.getPrevious();
  if (prev instanceof FieldInsnNode && ((MethodInsnNode) n).name.equals("toEnum")) {
    toType = loadType(loader, ((Type) cst).getClassName());
  return loadType(loader, typeInsn.desc);
} else if (n != null && Opcodes.DUP == n.getOpcode()) {
 AbstractInsnNode next = n.getNext();
 if (next instanceof MethodInsnNode) {
  if (((MethodInsnNode) next).name.equals("toOptional")) {

代码示例来源：origin: fge/grappa

@Override
public void returnOperation(final AbstractInsnNode insn,
  final BasicValue value, final BasicValue expected)
  throws AnalyzerException
{
  Preconditions.checkState(insn.getOpcode() == ARETURN);
  Preconditions.checkState(unwrap(value).getType().equals(
    Type.getType(Rule.class)));
  Preconditions.checkState(unwrap(expected).getType().equals(
    Type.getType(Rule.class)));
  Preconditions.checkState(method.getReturnInstructionNode() == null);
  method.setReturnInstructionNode(createNode(insn, null, value));
}

代码示例来源：origin: fergarrui/custom-bytecode-analyzer

public void populateClassGraph() {
  String className = Type.getObjectType(classNode.name).getClassName();
  logger.debug("Creating graph for class {}" , className);
  for (MethodNode methodNode : classNode.methods) {
   String methodName = methodNode.name;
   MethodGraph caller = new MethodGraph(className, methodName);
   InsnList instructions = methodNode.instructions;
   for (int i = 0; i < instructions.size(); i++) {
    AbstractInsnNode insnNode = instructions.get(i);
    if (insnNode.getType() == AbstractInsnNode.METHOD_INSN) {
     MethodInsnNode methodInsnNode = (MethodInsnNode)insnNode;
     String calledOwner = Type.getObjectType(methodInsnNode.owner).getClassName();
     String calledName = methodInsnNode.name;
     MethodGraph called = new MethodGraph(calledOwner, calledName);
     Call call = new Call(caller, called);
     if (!called.getOwner().equals("java.lang.Object") && !called.getName().equals("<init>")) {
      logger.trace("Adding call graph: {}", call.toString());
      GraphHolder.addCallGraph(call);
     }
    }
   }
  }
 }
}

代码示例来源：origin: pxb1988/dex2jar

@Override
public JvmValue unaryOperation(AbstractInsnNode insn, JvmValue value0) throws AnalyzerException {
  Local local = value0 == null ? null : getLocal(value0);
  switch (insn.getOpcode()) {
    case INEG:
      return b(1, Exprs.nNeg(local, "I"));
      Type fieldType = Type.getType(fin.desc);
      return b(fieldType.getSize(), Exprs.nField(local, "L" + fin.owner + ";", fin.name, fin.desc));

代码示例来源：origin: org.ow2.asm/asm-debug-all

@Override
public BasicValue naryOperation(final AbstractInsnNode insn,
    final List<? extends BasicValue> values) throws AnalyzerException {
  int opcode = insn.getOpcode();
  if (opcode == MULTIANEWARRAY) {
    for (int i = 0; i < values.size(); ++i) {
      if (!BasicValue.INT_VALUE.equals(values.get(i))) {
        throw new AnalyzerException(insn, null,
            BasicValue.INT_VALUE, values.get(i));
    int j = 0;
    if (opcode != INVOKESTATIC && opcode != INVOKEDYNAMIC) {
      Type owner = Type.getObjectType(((MethodInsnNode) insn).owner);
      if (!isSubTypeOf(values.get(i++), newValue(owner))) {
        throw new AnalyzerException(insn, "Method owner",
    Type[] args = Type.getArgumentTypes(desc);
    while (i < values.size()) {
      BasicValue expected = newValue(args[j++]);

代码示例来源：origin: junkdog/artemis-odb

private void resetField(FieldDescriptor field) {
    mv.visitVarInsn(ALOAD, 0);
    field.reset.accept(mv);
    mv.visitFieldInsn(PUTFIELD, meta.type.getInternalName(), field.name, field.desc);
  }
}

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