org.objectweb.asm.tree.InsnList.set()方法的使用及代码示例

x33g5p2x  于2022-01-21 转载在 其他  
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本文整理了Java中org.objectweb.asm.tree.InsnList.set()方法的一些代码示例，展示了InsnList.set()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。InsnList.set()方法的具体详情如下：
包路径：org.objectweb.asm.tree.InsnList
类名称：InsnList
方法名：set

InsnList.set介绍

[英]Replaces an instruction of this list with another instruction.
[中]将此列表的一条指令替换为另一条指令。

代码示例

代码示例来源：origin: kilim/kilim

void setInstruction(int pos, AbstractInsnNode insn) {
  flow.instructions.set(getInstruction(pos), insn);
}

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

public void set(Object o) {
    if (remove != null) {
      InsnList.this.set(remove, (AbstractInsnNode) o);
      if (remove == prev) {
        prev = (AbstractInsnNode) o;
      } else {
        next = (AbstractInsnNode) o;                    
      }
    } else {
      throw new IllegalStateException();
    }
  }
}

代码示例来源：origin: org.ow2.asm/asm-tree

@Override
 public void set(final Object o) {
  if (remove != null) {
   InsnList.this.set(remove, (AbstractInsnNode) o);
   if (remove == previousInsn) {
    previousInsn = (AbstractInsnNode) o;
   } else {
    nextInsn = (AbstractInsnNode) o;
   }
  } else {
   throw new IllegalStateException();
  }
 }
}

代码示例来源：origin: org.renjin/gcc-bridge-compiler

public void replace(int offset, AbstractInsnNode node) {
 list.set(get(offset), node);
}

代码示例来源：origin: ValkyrienWarfare/Valkyrien-Warfare-Revamped

public static SpecificMethodNodeTransformer instructionsNodesTransformer(String target, int priority, Function<AbstractInsnNode, AbstractInsnNode> insnOld2new) {
  return instructionsTransformer(priority, target, instructions -> {
    for (AbstractInsnNode node : instructions.toArray()) {
      AbstractInsnNode res = insnOld2new.apply(node);
      if (res != null) instructions.set(node, res);
      else instructions.remove(node);
    }
  });
}

代码示例来源：origin: CalebWhiting/java-asm-obfuscator

private void scramble(ClassNode cn, MethodNode mn) {
  List<LdcInsnNode> ldcNodes = new LinkedList<>();
  BytecodeHelper.forEach(mn.instructions, LdcInsnNode.class, ldcNodes::add);
  for (LdcInsnNode node : ldcNodes) {
    if (node.cst instanceof String) {
      int index = stringList.indexOf(node.cst);
      if (index == -1)
        continue;
      log.debug("Replacing string constant \"{}\" at {}.{}{}", node.cst, cn.name, mn.name, mn.desc);
      MethodInsnNode call = new MethodInsnNode(Opcodes.INVOKESTATIC, unscrambleClass.name, CALL_NAME, CALL_DESC, false);
      mn.instructions.set(node, call);
      mn.instructions.insertBefore(call, BytecodeHelper.newIntegerNode(index));
    }
  }
}

代码示例来源：origin: CalebWhiting/java-asm-obfuscator

private void replace(int opcode, ClassNode owner, FieldNode field, MethodNode m) {
  if (Modifier.isStatic(field.access))
    opcode -= 2;
  for (ClassNode cn : classMap.values()) {
    for (MethodNode mn : cn.methods) {
      AbstractInsnNode[] instructions = mn.instructions.toArray();
      for (AbstractInsnNode node : instructions) {
        if (node.getType() != AbstractInsnNode.METHOD_INSN) {
          continue;
        }
        MethodInsnNode min = (MethodInsnNode) node;
        List<String> owners = getChildNames(owner);
        if (owners.contains(min.owner) && min.name.equals(m.name) && min.desc.equals(m.desc)) {
          FieldInsnNode fin = new FieldInsnNode(opcode, min.owner, field.name, field.desc);
          log.debug(" replace {}.{}.{}, insn: {}",
              cn.name, mn.name, mn.desc, QueryUtil.query(fin, "index"));
          mn.instructions.set(min, fin);
        }
      }
    }
  }
}

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

private void replaceWithActionWrapper(InstructionGraphNode node) {
  MethodInsnNode insn = createActionWrappingInsn();
  method.instructions.set(node.getInstruction(), insn);
  node.setIsActionRoot();
  node.setInstruction(insn);
}

代码示例来源：origin: fge/grappa

private void replaceWithActionWrapper(final InstructionGraphNode node)
{
  final MethodInsnNode insn = createActionWrappingInsn();
  method.instructions.set(node.getInstruction(), insn);
  node.setIsActionRoot();
  node.setInstruction(insn);
}

代码示例来源：origin: ItzSomebody/Radon

@Override
public void transform() {
  AtomicInteger count = new AtomicInteger();
  long current = System.currentTimeMillis();
  getClassWrappers().parallelStream().filter(classWrapper -> !excluded(classWrapper)).forEach(classWrapper ->
      classWrapper.methods.parallelStream().filter(methodWrapper -> !excluded(methodWrapper)
          && hasInstructions(methodWrapper.methodNode)).forEach(methodWrapper -> {
        MethodNode methodNode = methodWrapper.methodNode;
        for (AbstractInsnNode insn : methodNode.instructions.toArray()) {
          if (insn.getOpcode() == GOTO) {
            JumpInsnNode gotoJump = (JumpInsnNode) insn;
            AbstractInsnNode insnAfterTarget = gotoJump.label.getNext();
            if (insnAfterTarget != null && BytecodeUtils.isReturn(insnAfterTarget.getOpcode())) {
              methodNode.instructions.set(insn, new InsnNode(insnAfterTarget.getOpcode()));
              count.incrementAndGet();
            }
          }
        }
      }));
  LoggerUtils.stdOut(String.format("Normalized %d GOTO->RETURN sequences. [%dms]", count.get(),
      tookThisLong(current)));
}

代码示例来源：origin: org.renjin/gcc-bridge-compiler

@Override
public boolean apply(NodeIt it) {
 if(it.matches(Pattern.LOAD, Pattern.LOAD)) {
  VarInsnNode load1 = it.get(0);
  VarInsnNode load2 = it.get(1);
  if(load1.var == load2.var) {
   it.getList().set(load2, dup(load2));
   return true;
  }
 }
 return false;
}

代码示例来源：origin: fge/grappa

method.instructions.set(current, insn);
current = insn;

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

protected void convertXLoads(InstructionGroup group) {
  String owner = group.getGroupClassType().getInternalName();
  for (InstructionGraphNode node : group.getNodes()) {
    if (!node.isXLoad()) continue;
    VarInsnNode insn = (VarInsnNode) node.getInstruction();
    FieldNode field = group.getFields().get(insn.var);
    // insert the correct GETFIELD after the xLoad
    group.getInstructions().insert(insn, new FieldInsnNode(GETFIELD, owner, field.name, field.desc));
    // change the load to ALOAD 0
    group.getInstructions().set(insn, new VarInsnNode(ALOAD, 0));
  }
}

代码示例来源：origin: ItzSomebody/Radon

classWrapper.classNode.name, fieldName, "[Ljava/lang/String;"));
methodNode.instructions.insertBefore(insn, BytecodeUtils.getNumberInsn(indexNumber));
methodNode.instructions.set(insn, new InsnNode(AALOAD));
counter.incrementAndGet();

代码示例来源：origin: fge/grappa

protected static void convertXLoads(final InstructionGroup group)
  {
    final String owner = group.getGroupClassType().getInternalName();

    InsnList insnList;

    for (final InstructionGraphNode node : group.getNodes()) {
      if (!node.isXLoad())
        continue;

      final VarInsnNode insn = (VarInsnNode) node.getInstruction();
      final FieldNode field = group.getFields().get(insn.var);
      final FieldInsnNode fieldNode = new FieldInsnNode(GETFIELD, owner,
        field.name, field.desc);

      insnList = group.getInstructions();

      // insert the correct GETFIELD after the xLoad
      insnList.insert(insn, fieldNode);
      // change the load to ALOAD 0
      insnList.set(insn, new VarInsnNode(ALOAD, 0));
    }
  }
}

代码示例来源：origin: ItzSomebody/Radon

encrypt(methodInsnNode.name, 2038),
    encrypt(methodInsnNode.desc, 1928));
methodNode.instructions.set(insn, indy);
if (returnType.getSort() == Type.ARRAY) {
  methodNode.instructions.insert(indy, new TypeInsnNode(CHECKCAST,

代码示例来源：origin: ItzSomebody/Radon

@Override
public void transform() {
  AtomicInteger counter = new AtomicInteger();
  this.getClassWrappers().parallelStream().filter(classWrapper ->
      !excluded(classWrapper)).forEach(classWrapper -> {
    ClassNode classNode = classWrapper.classNode;
    String fieldName = StringUtils.randomSpacesString(RandomUtils.getRandomInt(10));
    classWrapper.methods.parallelStream().filter(methodWrapper -> !excluded(methodWrapper)
        && hasInstructions(methodWrapper.methodNode)).forEach(methodWrapper -> {
      MethodNode methodNode = methodWrapper.methodNode;
      int leeway = getSizeLeeway(methodNode);
      for (AbstractInsnNode insn : methodNode.instructions.toArray()) {
        if (leeway < 10000) {
          break;
        }
        if (insn.getOpcode() == GOTO) {
          methodNode.instructions.insertBefore(insn, new FieldInsnNode(GETSTATIC, classNode.name,
              fieldName, "Z"));
          methodNode.instructions.insert(insn, new InsnNode(ATHROW));
          methodNode.instructions.insert(insn, new InsnNode(ACONST_NULL));
          methodNode.instructions.set(insn, new JumpInsnNode(IFEQ, ((JumpInsnNode) insn).label));
          leeway -= 7;
          counter.incrementAndGet();
        }
      }
    });
    classNode.fields.add(new FieldNode(ACC_PUBLIC + ACC_STATIC + ACC_FINAL, fieldName, "Z", null, null));
  });
  LoggerUtils.stdOut(String.format("Added %d fake throw-null sequences", counter.get()));
}

代码示例来源：origin: ItzSomebody/Radon

methodNode.instructions.insert(insn, new InsnNode(ATHROW));
methodNode.instructions.insert(insn, new InsnNode(ACONST_NULL));
methodNode.instructions.set(insn, new JumpInsnNode(IFEQ, ((JumpInsnNode) insn).label));
leeway -= 7;
counter.incrementAndGet();

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");
  if (method.getNumberOfReturns() == 1) return;
  checkState(method.getNumberOfReturns() > 1);
  AbstractInsnNode current = method.instructions.getLast();
  // find last return
  while (current.getOpcode() != ARETURN) {
    current = current.getPrevious();
  }
  LabelNode lastReturnLabel = new LabelNode();
  method.instructions.insertBefore(current, lastReturnLabel);
  // iterate backwards up to first instructions
  while ((current = current.getPrevious()) != null) {
    // replace returns with gotos
    if (current.getOpcode() == ARETURN) {
      JumpInsnNode gotoInstruction = new JumpInsnNode(GOTO, lastReturnLabel);
      method.instructions.set(current, gotoInstruction);
      current = gotoInstruction;
    }
  }
}

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

insnList.set(newValue.insn, new OmittedInstruction(newValue.insn));

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