Java 类org.objectweb.asm.tree.VarInsnNode 实例源码

项目：MC-Ray-Tracer 文件：MinecraftTransformer.java

@Override
public MethodTransformer[] getMethodTransformers() {
    MethodTransformer loadWorldTransformer = new MethodTransformer() {
        public String getMethodName() {return CoreLoader.isObfuscated ? "a" : "loadWorld";}
        public String getDescName() {return "(L" + (CoreLoader.isObfuscated ? "bnq" : Type.getInternalName(WorldClient.class)) + ";Ljava/lang/String;)V";}

        public void transform(ClassNode classNode, MethodNode method, boolean obfuscated) {
            CLTLog.info("Found method: " + method.name + " " + method.desc);
            CLTLog.info("begining at start of method " + getMethodName());

            //TransformerUtil.onWorldLoad(WorldClient worldClientIn)
            InsnList toInsert = new InsnList();
            toInsert.add(new VarInsnNode(ALOAD, 1)); //worldClientIn
            toInsert.add(new MethodInsnNode(INVOKESTATIC, Type.getInternalName(TransformerUtil.class),
                    "onWorldLoad", "(L" + Type.getInternalName(WorldClient.class) + ";)V", false));
            method.instructions.insertBefore(method.instructions.getFirst(), toInsert);
        }
    };

    return new MethodTransformer[] {loadWorldTransformer};
}

项目：luna 文件：BytecodeEmitVisitor.java

@Override
public void visit(LoadConst.Str node) {
  // use byte strings?
  if (context.compilerSettings.byteStrings()) {
    if (context.compilerSettings.constCaching()) {
      il.add(loadCachedConst(node.value()));
    } else {
      il.add(newByteString(node.value()));
    }
  } else {
    // java.lang.String
    il.add(new LdcInsnNode(node.value()));
  }

  il.add(new VarInsnNode(ASTORE, slot(node.dest())));
}

项目：luna 文件：BytecodeEmitVisitor.java

@Override
public void visit(UnOp node) {
  if (node.op() == UnOp.Op.NOT) {
    il.add(new VarInsnNode(ALOAD, slot(node.arg())));
    il.add(ConversionMethods.booleanValueOf());
    il.add(new InsnNode(ICONST_1));
    il.add(new InsnNode(IXOR));
    il.add(BoxedPrimitivesMethods.box(Type.BOOLEAN_TYPE, Type.getType(Boolean.class)));
  } else {
    ResumptionPoint rp = newResumptionPoint();
    il.add(rp.save());

    il.add(loadExecutionContext());
    il.add(new VarInsnNode(ALOAD, slot(node.arg())));
    il.add(DispatchMethods.dynamic(dispatchMethodName(node.op()), 1));

    il.add(rp.resume());
    il.add(retrieve_0());
  }

  il.add(new VarInsnNode(ASTORE, slot(node.dest())));
}

项目：luna 文件：BytecodeEmitVisitor.java

@Override
public void visit(Branch.Condition.Nil cond) {
  assert (destLabel != null);
  il.add(new VarInsnNode(ALOAD, slot(cond.addr())));

  if (!isSub() || resolver.isLocalLabel(destLabel)) {
    // local jump
    il.add(new JumpInsnNode(IFNULL, l(destLabel)));
  } else {
    // non-local jump
    LabelNode l_nojump = new LabelNode();
    il.add(new JumpInsnNode(IFNONNULL, l_nojump));
    il.add(_nonLocalGoto(destLabel));
    il.add(l_nojump);
    il.add(new FrameNode(F_SAME, 0, null, 0, null));
  }
}

项目：luna 文件：BytecodeEmitVisitor.java

@Override
public void visit(Branch.Condition.Bool cond) {
  assert (destLabel != null);
  il.add(new VarInsnNode(ALOAD, slot(cond.addr())));
  il.add(ConversionMethods.booleanValueOf());

  if (!isSub() || resolver.isLocalLabel(destLabel)) {
    // local jump
    il.add(new JumpInsnNode(cond.expected() ? IFNE : IFEQ, l(destLabel)));
  } else {
    // non-local jump
    LabelNode l_nojump = new LabelNode();
    il.add(new JumpInsnNode(cond.expected() ? IFEQ : IFNE, l_nojump));
    il.add(_nonLocalGoto(destLabel));
    il.add(l_nojump);
    il.add(new FrameNode(F_SAME, 0, null, 0, null));
  }

}

项目：luna 文件：BytecodeEmitVisitor.java

@Override
public void visit(Branch.Condition.NumLoopEnd cond) {
  assert (destLabel != null);
  il.add(new VarInsnNode(ALOAD, slot(cond.var())));
  il.add(new TypeInsnNode(CHECKCAST, Type.getInternalName(Number.class)));
  il.add(new VarInsnNode(ALOAD, slot(cond.limit())));
  il.add(new TypeInsnNode(CHECKCAST, Type.getInternalName(Number.class)));
  il.add(new VarInsnNode(ALOAD, slot(cond.step())));
  il.add(new TypeInsnNode(CHECKCAST, Type.getInternalName(Number.class)));
  il.add(DispatchMethods.continueLoop());

  if (!isSub() || resolver.isLocalLabel(destLabel)) {
    // local jump
    il.add(new JumpInsnNode(IFEQ, l(destLabel)));
  } else {
    // non-local jump
    LabelNode l_nojump = new LabelNode();
    il.add(new JumpInsnNode(IFNE, l_nojump));
    il.add(_nonLocalGoto(destLabel));
    il.add(l_nojump);
    il.add(new FrameNode(F_SAME, 0, null, 0, null));
  }
}

项目：luna 文件：BytecodeEmitVisitor.java

public RunMethod.ClosureFieldInstance toClosureFieldInstance() {
  assert (this.isClosed());

  FieldNode fieldNode = instanceFieldNode();

  InsnList il = new InsnList();
  il.add(new VarInsnNode(ALOAD, 0));
  il.add(instantiationInsns());
  il.add(new FieldInsnNode(
      PUTFIELD,
      context.thisClassType().getInternalName(),
      instanceFieldName(),
      instanceType().getDescriptor()));

  return new RunMethod.ClosureFieldInstance(instanceFieldNode(), il);
}

项目：luna 文件：BytecodeEmitVisitor.java

private InsnList fetchInstanceInsns() {
  InsnList il = new InsnList();

  if (this.isClosed()) {
    if (this.isPure()) {
      il.add(new FieldInsnNode(
          GETSTATIC,
          instanceType().getInternalName(),
          ASMBytecodeEmitter.instanceFieldName(),
          instanceType().getDescriptor()));
    } else {
      il.add(new VarInsnNode(ALOAD, 0));
      il.add(new FieldInsnNode(
          GETFIELD,
          context.thisClassType().getInternalName(),
          instanceFieldName(),
          instanceType().getDescriptor()));
    }
  } else {
    il.add(instantiationInsns());
  }

  return il;
}

项目：luna 文件：RunMethod.java

private InsnList dispatchTable(List<LabelNode> extLabels, List<LabelNode> resumptionLabels,
    LabelNode errorStateLabel) {
  InsnList il = new InsnList();

  assert (!extLabels.isEmpty());

  ArrayList<LabelNode> labels = new ArrayList<>();
  labels.addAll(extLabels);
  labels.addAll(resumptionLabels);
  LabelNode[] labelArray = labels.toArray(new LabelNode[labels.size()]);

  int min = 1 - extLabels.size();
  int max = resumptionLabels.size();

  il.add(new VarInsnNode(ILOAD, LV_RESUME));
  il.add(new TableSwitchInsnNode(min, max, errorStateLabel, labelArray));
  return il;
}

项目：luna 文件：RunMethod.java

InsnList createSnapshot() {
  InsnList il = new InsnList();

  il.add(new VarInsnNode(ALOAD, 0));  // this
  il.add(new VarInsnNode(ALOAD, 0));
  il.add(new VarInsnNode(ILOAD, LV_RESUME));
  if (context.isVararg()) {
    il.add(new VarInsnNode(ALOAD, LV_VARARGS));
  }
  for (int i = 0; i < numOfRegisters(); i++) {
    il.add(new VarInsnNode(ALOAD, slotOffset() + i));
  }
  il.add(snapshotMethodInvokeInsn());

  return il;
}

项目：flex-fov 文件：MinecraftTransformer.java

@Override
public MethodTransformer[] getMethodTransformers() {
    MethodTransformer transformLoadWorld = new MethodTransformer() {

        @Override
        public MethodName getName() {
            return Names.Minecraft_loadWorld;
        }

        @Override
        public void transform(ClassNode classNode, MethodNode method, boolean obfuscated) {
            CLTLog.info("Found method: " + method.name + " " + method.desc);
            CLTLog.info("begining at start of method " + getName().all());

            InsnList toInsert = new InsnList();
            toInsert.add(new VarInsnNode(ALOAD, 1)); //worldClientIn
            toInsert.add(new MethodInsnNode(INVOKESTATIC, Type.getInternalName(RenderUtil.class),
                    "onWorldLoad", "(L" + Type.getInternalName(WorldClient.class) + ";)V", false));
            method.instructions.insertBefore(method.instructions.getFirst(), toInsert);
        }
    };

    return new MethodTransformer[] {transformLoadWorld};
}

项目：anvil 文件：SteamAuthDuplicateTransformer.java

@Override
public void transform(ClassNode clazz, MethodNode method, InsnMatcher matcher) {
    method.tryCatchBlocks.clear();
    method.localVariables.clear();
    method.instructions.clear();

    /* this.loginHandlerList.put(SteamIdAsString, loginHandler); */
    method.instructions.add(new VarInsnNode(Opcodes.ALOAD, 0));
    method.instructions.add(new FieldInsnNode(Opcodes.GETFIELD, "com/wurmonline/server/steam/SteamHandler", "loginHandlerList", "Ljava/util/Map;"));
    method.instructions.add(new VarInsnNode(Opcodes.ALOAD, 1));
    method.instructions.add(new VarInsnNode(Opcodes.ALOAD, 2));
    method.instructions.add(new MethodInsnNode(Opcodes.INVOKEINTERFACE, "java/util/Map", "put", "(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;", true));
    method.instructions.add(new InsnNode(Opcodes.POP));

    /* return true; */
    method.instructions.add(new InsnNode(Opcodes.ICONST_1));
    method.instructions.add(new InsnNode(Opcodes.IRETURN));
}

项目：anvil 文件：VeinCapTransformer.java

@Override
public void transform(ClassNode clazz, MethodNode method, InsnMatcher matcher) {
    AbstractInsnNode[] match = Iterators.getOnlyElement(matcher.match("BIPUSH ISTORE", m -> {
        IntInsnNode push = (IntInsnNode) m[0];
        if (push.operand != 50) {
            return false;
        }

        VarInsnNode store = (VarInsnNode) m[1];
        LocalVariableNode node = AsmUtils.getLocalVariable(method, store.var, store);
        return node != null && node.name.equals("resource") && node.desc.equals("I");
    }));

    method.instructions.remove(match[0]);
    method.instructions.remove(match[1]);
}

项目：agent-callback 文件：CallFactory.java

public static void establishCallback(ClassNode cn, MethodNode mn) {
    if (!mn.desc.startsWith("()")) {
        MethodNode blank = new MethodNode();
        Method method = new Method(mn.name, mn.desc);
        GeneratorAdapter adapter = new GeneratorAdapter(mn.access, method, blank);
        adapter.visitCode();
        adapter.push(cn.name + "." + mn.name + "  " + mn.desc);
        adapter.loadArgArray();
        adapter.invokeStatic(Type.getType(CallFactory.class), new Method("testInvoke",
                "(Ljava/lang/String;[Ljava/lang/Object;)V"));
        for (AbstractInsnNode ain : mn.instructions.toArray()) {
            if (ain instanceof VarInsnNode) {
                mn.instructions.insertBefore(ain, blank.instructions);
                return;
            }
        }
    }
}

项目：VivecraftForgeExtensions 文件：ASMHandlerIncreaseReachDistance.java

@Override
public void patchMethod(MethodNode methodNode, ClassNode classNode, boolean obfuscated) {
    AbstractInsnNode insert = ASMUtil.findFirstInstruction(methodNode, Opcodes.DSTORE, 5);
    if (insert == null) return;
    InsnList insnList = new InsnList();
    insnList.add(new VarInsnNode(Opcodes.ALOAD, 0));
    insnList.add(new FieldInsnNode(Opcodes.GETFIELD, obfuscated ? "nh" : "net/minecraft/network/NetHandlerPlayServer", obfuscated ? "b" : "playerEntity", obfuscated ? "Lmw;" : "Lnet/minecraft/entity/player/EntityPlayerMP;"));
    insnList.add(new VarInsnNode(Opcodes.DLOAD, 5));
    insnList.add(new MethodInsnNode(Opcodes.INVOKESTATIC, "com/techjar/vivecraftforge/util/ASMDelegator", "playerEntityReachDistance", obfuscated ? "(Lyz;D)D" : "(Lnet/minecraft/entity/player/EntityPlayer;D)D", false));
    insnList.add(new VarInsnNode(Opcodes.DSTORE, 5));
    methodNode.instructions.insert(insert, insnList);
    VivecraftForgeLog.debug("Inserted delegate method call.");

    AbstractInsnNode removeInsn = ASMUtil.findFirstInstruction(methodNode, Opcodes.LDC, 9.0D);
    if (removeInsn != null) {
        int remove = methodNode.instructions.indexOf(removeInsn);
        for (int i = 0; i < 2; i++) {
            methodNode.instructions.remove(methodNode.instructions.get(remove));
        }
        VivecraftForgeLog.debug("Removed variable assignment.");
    } else {
        VivecraftForgeLog.debug("Variable assignment not found.");
    }
}

项目：CCTweaks-Lua 文件：CustomTimeout.java

@Override
public ClassVisitor patch(String className, ClassVisitor delegate) throws Exception {
    return new FindingVisitor(
        delegate,
        new VarInsnNode(ALOAD, 4),
        new LdcInsnNode(7000L),
        new MethodInsnNode(INVOKEVIRTUAL, "java/lang/Thread", "join", "(J)V", false)
    ) {
        @Override
        public void handle(InsnList nodes, MethodVisitor visitor) {
            visitor.visitVarInsn(ALOAD, 4);
            visitor.visitFieldInsn(GETSTATIC, "org/squiddev/cctweaks/lua/Config$Computer", "computerThreadTimeout", "I");
            visitor.visitInsn(I2L);
            visitor.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Thread", "join", "(J)V", false);
        }
    }.onMethod("run").once().mustFind();
}

项目：JAADAS 文件：AsmMethodSource.java

private void convertVarLoadInsn(VarInsnNode insn) {
    int op = insn.getOpcode();
    boolean dword = op == LLOAD || op == DLOAD;
    StackFrame frame = getFrame(insn);
    Operand[] out = frame.out();
    Operand opr;
    if (out == null) {
        opr = new Operand(insn, getLocal(insn.var));
        frame.out(opr);
    } else {
        opr = out[0];
    }
    if (dword)
        pushDual(opr);
    else
        push(opr);
}

项目：JAADAS 文件：AsmMethodSource.java

private void convertVarStoreInsn(VarInsnNode insn) {
    int op = insn.getOpcode();
    boolean dword = op == LSTORE || op == DSTORE;
    StackFrame frame = getFrame(insn);
    Operand opr = dword ? popDual() : pop();
    Local local = getLocal(insn.var);
    if (!units.containsKey(insn)) {
        DefinitionStmt as = Jimple.v().newAssignStmt(local, opr.stackOrValue());
        opr.addBox(as.getRightOpBox());
        frame.boxes(as.getRightOpBox());
        frame.in(opr);
        setUnit(insn, as);
    } else {
        frame.mergeIn(opr);
    }
    assignReadOps(local);
}

项目：RorysMod 文件：InstructionComparator.java

public static boolean insnEqual(AbstractInsnNode node1, AbstractInsnNode node2) {
    if (node1.getType() != node2.getType()) {
        return false;
    } else if (node1.getOpcode() != node2.getOpcode()) {
        return false;
    }

    switch (node2.getType()) {
        case VAR_INSN:
            return varInsnEqual((VarInsnNode) node1, (VarInsnNode) node2);
        case TYPE_INSN:
            return typeInsnEqual((TypeInsnNode) node1, (TypeInsnNode) node2);
        case FIELD_INSN:
            return fieldInsnEqual((FieldInsnNode) node1, (FieldInsnNode) node2);
        case METHOD_INSN:
            return methodInsnEqual((MethodInsnNode) node1, (MethodInsnNode) node2);
        case LDC_INSN:
            return ldcInsnEqual((LdcInsnNode) node1, (LdcInsnNode) node2);
        case IINC_INSN:
            return iincInsnEqual((IincInsnNode) node1, (IincInsnNode) node2);
        case INT_INSN:
            return intInsnEqual((IntInsnNode) node1, (IntInsnNode) node2);
        default:
            return true;
    }
}

项目：RorysMod 文件：SleepingTransformer.java

private byte[] transformPlayer(byte[] bytes) {
    ClassNode clazz = ASMHelper.createClassNode(bytes);

    MethodNode method = ASMHelper.findMethod(clazz, ASMNames.MD_PLAYER_UPDATE);

    InsnList needle = new InsnList();
    needle.add(new VarInsnNode(Opcodes.ALOAD, 0));
    needle.add(ASMHelper.getFieldInsnNode(Opcodes.GETFIELD, ASMNames.FD_PLAYER_WORLD_OBJ));
    needle.add(ASMHelper.getMethodInsnNode(Opcodes.INVOKEVIRTUAL, ASMNames.MD_WORLD_IS_DAY, false));
    LabelNode l2 = new LabelNode();
    needle.add(new JumpInsnNode(Opcodes.IFEQ, l2));

    AbstractInsnNode insertPoint = ASMHelper.findFirstNodeFromNeedle(method.instructions, needle);

    method.instructions.remove(insertPoint.getNext().getNext());
    method.instructions.set(insertPoint.getNext(), ASMHelper.getMethodInsnNode(Opcodes.INVOKESTATIC, ASMNames.MD_RM_HELPER_SLEEP_PLAEYR, false));

    return ASMHelper.createBytes(clazz, ClassWriter.COMPUTE_FRAMES | ClassWriter.COMPUTE_MAXS);
}

项目：Alchemy 文件：TransformerInfernalMobsCore.java

@Override
public byte[] transform(String name, String transformedName, byte[] basicClass) {
    ClassReader reader = new ClassReader(basicClass);
    ClassNode node = new ClassNode(ASM5);
    reader.accept(node, 0);
    node.methods.removeIf(m -> !m.name.equals("<init>"));
    node.methods.stream()
        .map(m -> m.instructions)
        .peek(InsnList::clear)
        .peek(l -> l.add(new VarInsnNode(ALOAD, 0)))
        .peek(l -> l.add(new MethodInsnNode(INVOKESPECIAL, "java/lang/Object", "<init>", "()V", false)))
        .forEach(l -> l.add(new InsnNode(RETURN)));
    node.interfaces.clear();
    node.superName = "java/lang/Object";
    node.innerClasses.clear();
    ClassWriter writer = ASMHelper.newClassWriter(0);
    node.accept(writer);
    return writer.toByteArray();
}

项目：rscplus 文件：JClassPatcher.java

private void patchMenu(ClassNode node) {
    Logger.Info("Patching menu (" + node.name + ".class)");

    Iterator<MethodNode> methodNodeList = node.methods.iterator();
    while (methodNodeList.hasNext()) {
        MethodNode methodNode = methodNodeList.next();

        // Menu swap hook
        if (methodNode.name.equals("e") && methodNode.desc.equals("(II)V")) {
            AbstractInsnNode first = methodNode.instructions.getFirst();

            LabelNode label = new LabelNode();
            methodNode.instructions.insertBefore(first, new VarInsnNode(Opcodes.ALOAD, 0));
            methodNode.instructions.insertBefore(first, new MethodInsnNode(Opcodes.INVOKESTATIC, "Game/Menu", "switchList", "(Ljava/lang/Object;)Z"));
            methodNode.instructions.insertBefore(first, new JumpInsnNode(Opcodes.IFGT, label));
            methodNode.instructions.insertBefore(first, new InsnNode(Opcodes.RETURN));
            methodNode.instructions.insertBefore(first, label);
        }
    }
}

项目：BlockSystems 文件：EntityListTransformer.java

@Override
public boolean transform(ClassNode classNode, String transformedName) {
    boolean transformed = false;
    MethodNode createEntityByName = this.getMethod(classNode, "createEntityByName", String.class, World.class, Entity.class);
    MethodNode createEntityByID = this.getMethod(classNode, "createEntityByID", int.class, World.class, Entity.class);
    MethodNode createEntityFromNBT = this.getMethod(classNode, "createEntityFromNBT", NBTTagCompound.class, World.class, Entity.class);
    Instruction createEntityInstruction = this.instruction()
            .var(ALOAD, 1)
            .method(INVOKESTATIC, BlockSystemHooks.class, "getMainWorld", World.class, World.class)
            .var(ASTORE, 1);
    Predicate<AbstractInsnNode> createEntityNode = node -> node.getOpcode() == ASTORE && ((VarInsnNode) node).var == 2;
    if (createEntityByName != null) {
        this.insertAfter(createEntityByName, createEntityNode, createEntityInstruction.build(), false);
        transformed = true;
    }
    if (createEntityByID != null) {
        this.insertAfter(createEntityByID, createEntityNode, createEntityInstruction.build(), false);
        transformed = true;
    }
    if (createEntityFromNBT != null) {
        this.insertAfter(createEntityFromNBT, createEntityNode, createEntityInstruction.build(), false);
        transformed = true;
    }
    return transformed;
}

项目：jaop 文件：ASMHelper.java

public static void loadNode(ListIterator<AbstractInsnNode> iterator, String paramType, int index) {
    //(Ljava/lang/String;IDCBSJZF)V
    if ("I".equals(paramType)
            || "C".equals(paramType)
            || "B".equals(paramType)
            || "S".equals(paramType)
            || "Z".equals(paramType)
            ) {
        iterator.add(new VarInsnNode(Opcodes.ILOAD, index));
    } else if ("J".equals(paramType)) {
        iterator.add(new VarInsnNode(Opcodes.LLOAD, index));
    } else if ("F".equals(paramType)) {
        iterator.add(new VarInsnNode(Opcodes.FLOAD, index));
    } else if ("D".equals(paramType)) {
        iterator.add(new VarInsnNode(Opcodes.DLOAD, index));
    } else {
        iterator.add(new VarInsnNode(Opcodes.ALOAD, index));
    }
}

项目：TextFormatting 文件：AllowedCharactersTransformer.java

private void injectFormatSymbol( MethodNode method, int index )
{
    TextFormattingLog.info( "Injecting at index " + index );

    InsnList list = new InsnList();
    list.add( new TypeInsnNode( NEW, "java/lang/StringBuilder" ) );
    list.add( new InsnNode( DUP ) );
    list.add( new LdcInsnNode( "Adding format symbol to allowed characters list..." ) );
    list.add( new MethodInsnNode( INVOKESTATIC, "com/spacechase0/minecraft/textformatting/TextFormattingLog", "info", "(Ljava/lang/String;)V" ) );
    list.add( new VarInsnNode( ALOAD, 0 ) );
    list.add( new MethodInsnNode( INVOKESPECIAL, "java/lang/StringBuilder", "<init>", "(Ljava/lang/String;)V" ) );
    list.add( new FieldInsnNode( GETSTATIC, "com/spacechase0/minecraft/textformatting/ColorData", "formatSymbol", "Ljava/lang/String;" ) );
    list.add( new MethodInsnNode( INVOKEVIRTUAL, "java/lang/StringBuilder", "append", "(Ljava/lang/String;)Ljava/lang/StringBuilder;" ) );
    list.add( new MethodInsnNode( INVOKEVIRTUAL, "java/lang/StringBuilder", "toString", "()Ljava/lang/String;" ) );
    list.add( new VarInsnNode( ASTORE, 0 ) );

    method.instructions.insertBefore( method.instructions.get( index ), list );
}

项目：testrecorder 文件：WrapArguments.java

@Override
public InsnList build(MethodContext context) {
    Type[] argumentTypes = context.getArgumentTypes();
    int[] arguments = context.getArguments();

    InsnList insnList = new InsnList();

    insnList.add(new LdcInsnNode(arguments.length));
    insnList.add(new TypeInsnNode(Opcodes.ANEWARRAY, Type.getInternalName(Object.class)));

    for (int i = 0; i < arguments.length; i++) {
        insnList.add(new InsnNode(DUP));
        insnList.add(new LdcInsnNode(i));

        int index = arguments[i];
        Type type = argumentTypes[i];

        insnList.add(new VarInsnNode(type.getOpcode(ILOAD), index));

        insnList.add(new BoxPrimitives(type).build(context));

        insnList.add(new InsnNode(AASTORE));
    }
    return insnList;
}

项目：Diorite 文件：TransformerInjectTracker.java

private AbstractInsnNode skipCheckCastBackwards(AbstractInsnNode node)
{
    // skip possible (?) ALOAD 0 if not static
    if (! this.isStatic && (node instanceof VarInsnNode) && (node.getOpcode() == ALOAD) && (((VarInsnNode) node).var == 0))
    {
        node = node.getPrevious();
    }

    // skip possible check cast
    if ((node instanceof TypeInsnNode) && (node.getOpcode() == CHECKCAST))
    {
        node = node.getPrevious();
    }

    // skip possible (?) ALOAD 0 if not static
    if (! this.isStatic && (node instanceof VarInsnNode) && (node.getOpcode() == ALOAD) && (((VarInsnNode) node).var == 0))
    {
        node = node.getPrevious();
    }
    return node;
}

项目：asmtweaks 文件：MethodEditorInsertModeTest.java

@Test
public void insertMultipleNodes() {
    MethodNode mthdNode = new MethodNode();
    MethodEditor editor = createMethodEditor1(mthdNode);

    editor.setInsertMode();
    boolean result = editor.apply(editor.newInstructionBuilder()
            .varInsn(VarInsnOpcodes.ALOAD, 0)
            .methodInsn(MethodInsnOpcodes.INVOKEVIRTUAL, "A", "A.a", "()J"));

    assertEquals(true, result);
    assertEquals(2, editor.getCursor());
    assertEquals(11, getMethodNode(editor).instructions.size());
    assertTrue(getMethodNode(editor).instructions.get(0) instanceof VarInsnNode);
    assertTrue(getMethodNode(editor).instructions.get(1) instanceof MethodInsnNode);
    assertTrue(getMethodNode(editor).instructions.get(2) instanceof LabelNode);
}

项目：Diorite 文件：TransformerInjectTracker.java

public boolean isCompatible(VarInsnNode varInsnNode)
{
    VarCode varCode;
    if (AsmUtils.isLoadCode(varInsnNode.getOpcode()))
    {
        if (AsmUtils.isLoadCode(this.getOpcode()))
        {
            return false;
        }
        return ((StoreCode) this).isCompatible(new LoadCode(varInsnNode));
    }
    else if (AsmUtils.isStoreCode(varInsnNode.getOpcode()))
    {
        if (AsmUtils.isStoreCode(this.getOpcode()))
        {
            return false;
        }
        return ((LoadCode) this).isCompatible(new StoreCode(varInsnNode));
    }
    else
    {
        throw new AnalyzeError("Unexpected VarInsnNode Opcode!");
    }
}

项目：NOVA-Core 文件：GameDataTransformer.java

private void transformAddPrefix(ClassNode cnode) {
    ObfMapping mapping = new ObfMapping("net/minecraftforge/fml/common/registry/GameData", "addPrefix", "(Ljava/lang/String;)Ljava/lang/String;");
    MethodNode method = ASMHelper.findMethod(mapping, cnode);

    if (method == null) {
        throw new IllegalStateException("[NOVA] Lookup " + mapping + " failed!");
    }

    Game.logger().info("Transforming method {}", method.name);

    @SuppressWarnings("unchecked")
    JumpInsnNode prev = (JumpInsnNode) method.instructions.get(49);

    InsnList list = new InsnList();
    list.add(new VarInsnNode(ALOAD, 4));
    list.add(new MethodInsnNode(INVOKESTATIC, "nova/core/wrapper/mc/forge/v18/asm/StaticForwarder", "isNovaPrefix", "(Ljava/lang/String;)Z", false));
    list.add(new JumpInsnNode(IFNE, prev.label));

    method.instructions.insert(prev, list);

    Game.logger().info("Injected instruction to method: {}", method.name);
}

项目：NOVA-Core 文件：InstructionComparator.java

public static boolean insnEqual(AbstractInsnNode node1, AbstractInsnNode node2) {
    if (node1.getOpcode() != node2.getOpcode()) {
        return false;
    }

    switch (node2.getType()) {
        case VAR_INSN:
            return varInsnEqual((VarInsnNode) node1, (VarInsnNode) node2);
        case TYPE_INSN:
            return typeInsnEqual((TypeInsnNode) node1, (TypeInsnNode) node2);
        case FIELD_INSN:
            return fieldInsnEqual((FieldInsnNode) node1, (FieldInsnNode) node2);
        case METHOD_INSN:
            return methodInsnEqual((MethodInsnNode) node1, (MethodInsnNode) node2);
        case LDC_INSN:
            return ldcInsnEqual((LdcInsnNode) node1, (LdcInsnNode) node2);
        case IINC_INSN:
            return iincInsnEqual((IincInsnNode) node1, (IincInsnNode) node2);
        case INT_INSN:
            return intInsnEqual((IntInsnNode) node1, (IntInsnNode) node2);
        default:
            return true;
    }
}

项目：BitPlus 文件：ChatHook.java

private void hookSendMessage(ClassNode cn) {
        Pattern p = new PatternBuilder()
                .add(new InstructionElement(INVOKESTATIC), new AnyElement(), new LdcElement(new LdcInsnNode("Chat")),
                        new InstructionElement(INVOKEVIRTUAL), new InstructionElement(POP))
                .build();

        for (MethodNode mn : cn.methods) {
            if (!p.contains(mn.instructions))
                continue;

            int offset = p.getOffset(mn.instructions) - 9;

            // steal
            JumpInsnNode jin = (JumpInsnNode) mn.instructions.get(offset - 1);

            InsnList inject = new InsnList();
            inject.add(new VarInsnNode(ALOAD, 2));
            inject.add(new MethodInsnNode(INVOKESTATIC, "me/themallard/bitmmo/impl/plugin/chathook/ChatHookManager",
                    "onChatMessage", "(Ljava/lang/String;)Z", false));
            inject.add(new JumpInsnNode(IFNE, jin.label));
//          inject.add(new InsnNode(POP));

            mn.instructions.insertBefore(mn.instructions.get(offset), inject);
        }
    }

项目：GemFireLite 文件：PdxSFieldProcessor.java

/***
 * 
 * 
 * @param fn
 * @param inst
 * @param dsi
 */
private void writeValue(String owner, FieldNode fn, InsnList inst, PdxSItem dsi)
{
  String desc = new StringBuffer("(Ljava/lang/String;").append(fn.desc)
      .append(")Lcom/gemstone/gemfire/pdx/PdxWriter;").toString();

  inst.add(new VarInsnNode(ALOAD, 1));
  inst.add(new LdcInsnNode(fn.name));
  inst.add(new VarInsnNode(ALOAD, 0));
  inst.add(new FieldInsnNode(GETFIELD, owner, fn.name, fn.desc));

  // add INVOKEVIRTUAL method
  if (PdxConstants.TYPE_BYTECODE_BYTE_B.equals(fn.desc)) // data type ->byte
    inst.add(AsmHelper.newMethodInsnNode(INVOKEVIRTUAL, PdxConstants.TYPE_BYTECODE_BYTE, "byteValue", fn.desc, false));
  else if (PdxConstants.TYPE_BYTECODE_BOOL_Z.equals(fn.desc)) // data type ->
                                                              // boolean
    inst.add(AsmHelper.newMethodInsnNode(INVOKEVIRTUAL, PdxConstants.TYPE_BYTECODE_BOOL, "booleanValue", fn.desc,
        false));

  inst.add(AsmHelper.newMethodInsnNode(INVOKEINTERFACE, PdxConstants.PDX_WRITER_VALUE, dsi.toMethod, desc, true));
  inst.add(new InsnNode(POP));
}

项目：asmtweaks 文件：MethodEditorInsertModeTest.java

@Test
public void insertMultipleNodesInEmptyMethod() {
    MethodNode mthdNode = new MethodNode();
    MethodEditor editor = createMethodEditor(mthdNode);

    editor.setInsertMode();
    boolean result = editor.apply(editor.newInstructionBuilder()
            .varInsn(VarInsnOpcodes.ALOAD, 0)
            .methodInsn(MethodInsnOpcodes.INVOKEVIRTUAL, "A", "A.a", "()J"));

    assertEquals(true, result);
    assertEquals(2, editor.getCursor());
    assertEquals(2, getMethodNode(editor).instructions.size());
    assertTrue(getMethodNode(editor).instructions.get(0) instanceof VarInsnNode);
    assertTrue(getMethodNode(editor).instructions.get(1) instanceof MethodInsnNode);
}

项目：GemFireLite 文件：MapperToolProcessor.java

private void addMapperValueMethod(ClassNode domain, ClassNode mapper)
{
  if (DomainMojoHelper.log().isDebugEnabled())
    DomainMojoHelper.log().debug("Add mapperValue(IDataSource)V method...");
  MethodNode mn = new MethodNode(ACC_PUBLIC, "mapperValue", "(Lgemlite/core/internal/domain/IDataSource;)L"
      + domain.name + ";", null, null);
  InsnList insn = mn.instructions;
  insn.add(new TypeInsnNode(NEW, domain.name));
  insn.add(new InsnNode(DUP));
  insn.add(AsmHelper.newMethodInsnNode(INVOKESPECIAL, domain.name, "<init>", "()V", false));
  insn.add(new VarInsnNode(ASTORE, 2));
  insn.add(new VarInsnNode(ALOAD, 0));
  insn.add(new VarInsnNode(ALOAD, 1));
  insn.add(new VarInsnNode(ALOAD, 2));
  insn.add(AsmHelper.newMethodInsnNode(INVOKEVIRTUAL, mapper.name, "mapperValue",
      "(Lgemlite/core/internal/domain/IDataSource;L" + domain.name + ";)L" + domain.name + ";", false));
  insn.add(new InsnNode(POP));
  insn.add(new VarInsnNode(ALOAD, 2));
  insn.add(new InsnNode(ARETURN));
  mapper.methods.add(mn);
  if (DomainMojoHelper.log().isDebugEnabled())
    DomainMojoHelper.log().debug("Add mapperValue(IDataSource)V method done.");

}

项目：GemFireLite 文件：MapperToolProcessor.java

private void addValue2KeySimple(ClassNode domain, ClassNode mapper, FieldNode key)
{
  if (DomainMojoHelper.log().isDebugEnabled())
    DomainMojoHelper.log().debug("Add value2key(V)K method, key field:" + key.name);
  String s1 = key.name.substring(0, 1);
  String s2 = key.name.substring(1);
  String getMethod = "get" + s1.toUpperCase() + s2;
  String fullDesc = AsmHelper.toFullName(key.desc);
  MethodNode mn = new MethodNode(ACC_PUBLIC, "value2Key", "(L" + domain.name + ";)" + fullDesc, null, null);
  InsnList insn = mn.instructions;
  insn.add(new VarInsnNode(ALOAD, 1));
  insn.add(AsmHelper.newMethodInsnNode(INVOKEVIRTUAL, domain.name, getMethod, "()" + key.desc, false));
  AsmHelper.addTypeConvert(insn, key.desc);
  insn.add(new InsnNode(ARETURN));
  mapper.methods.add(mn);
  if (DomainMojoHelper.log().isDebugEnabled())
    DomainMojoHelper.log().debug("Add value2key(V)K method, key field:" + key.name + " done.");
}

项目：jephyr 文件：ContinuationMethodAdapter.java

private void addInvocationStartedHook(int implVarIndex, LabelNode labelNode) {
    if ((access & ACC_STATIC) == 0) {
        instructions.insertBefore(labelNode, new VarInsnNode(ALOAD, implVarIndex));
        instructions.insertBefore(labelNode, new VarInsnNode(ALOAD, 0));
        instructions.insertBefore(labelNode, new LdcInsnNode(name));
        instructions.insertBefore(labelNode, new LdcInsnNode(desc));
        instructions.insertBefore(labelNode,
                new MethodInsnNode(INVOKEVIRTUAL, "org/jephyr/continuation/easyflow/ContinuationImpl",
                        "invocationStarted", "(Ljava/lang/Object;Ljava/lang/String;Ljava/lang/String;)V", false));
    } else {
        instructions.insertBefore(labelNode, new VarInsnNode(ALOAD, implVarIndex));
        instructions.insertBefore(labelNode, new LdcInsnNode(Type.getType('L' + owner + ';')));
        instructions.insertBefore(labelNode, new LdcInsnNode(name));
        instructions.insertBefore(labelNode, new LdcInsnNode(desc));
        instructions.insertBefore(labelNode,
                new MethodInsnNode(INVOKEVIRTUAL, "org/jephyr/continuation/easyflow/ContinuationImpl",
                        "staticInvocationStarted", "(Ljava/lang/Class;Ljava/lang/String;Ljava/lang/String;)V",
                        false));
    }

    updateMaxStack(4);
}

项目：SpaceCore 文件：PacketInterceptTransformer.java

private void injectProcessInterceptor( MethodNode method, String parent, String realName, String methodParam )
  {
SpaceCoreLog.fine( "Injecting at beginning of method...." );

String realParent = ObfuscationUtils.asmify( parent );
String realClass = ObfuscationUtils.asmify( realName );

InsnList instructions = new InsnList();
instructions.add( new VarInsnNode( ALOAD, 1 ) );
instructions.add( new VarInsnNode( ALOAD, 0 ) );
instructions.add( new TypeInsnNode( CHECKCAST, realParent ) );
instructions.add( new MethodInsnNode( INVOKESTATIC, "com/spacechase0/minecraft/spacecore/network/PacketInterceptor", "intercept", "(L" + methodParam + ";L" + realParent + ";)V" ) );
//System.out.println( methodParam+" "+realClass );

method.instructions.insertBefore( method.instructions.get( 0 ), instructions );
  }

项目：SpaceCore 文件：PacketInterceptTransformer.java

private void injectSendInterceptor( MethodNode method, String parent, String methodParam )
  {
SpaceCoreLog.fine( "Injecting at beginning of method...." );

String realParent = ObfuscationUtils.asmify( parent );
//String realClass = ObfuscationUtils.asmify( realName );

InsnList instructions = new InsnList();
instructions.add( new VarInsnNode( ALOAD, 0 ) );
instructions.add( new VarInsnNode( ALOAD, 1 ) );
instructions.add( new TypeInsnNode( CHECKCAST, realParent ) );
instructions.add( new MethodInsnNode( INVOKESTATIC, "com/spacechase0/minecraft/spacecore/network/PacketInterceptor", "intercept", "(L" + realParent + ";L" + methodParam + ";)V" ) );
//System.out.println( methodParam+" "+realClass );

method.instructions.insertBefore( method.instructions.get( 0 ), instructions );
  }

项目：instrumentation 文件：Instrumentator.java

private int addMethodParametersVariable(InsnList il) {
    il.add(TreeInstructions.getPushInstruction(this.methodArguments.length));
    il.add(new TypeInsnNode(Opcodes.ANEWARRAY, "java/lang/Object"));
    int methodParametersIndex = getFistAvailablePosition();
    il.add(new VarInsnNode(Opcodes.ASTORE, methodParametersIndex));
    this.mn.maxLocals++;
    for (int i = 0; i < this.methodArguments.length; i++) {
        il.add(new VarInsnNode(Opcodes.ALOAD, methodParametersIndex));
        il.add(TreeInstructions.getPushInstruction(i));
        il.add(TreeInstructions.getLoadInst(methodArguments[i],
                getArgumentPosition(i)));
        MethodInsnNode mNode = TreeInstructions
                .getWrapperContructionInst(methodArguments[i]);
        if (mNode != null) {
            il.add(mNode);
        }
        il.add(new InsnNode(Opcodes.AASTORE));
    }
    return methodParametersIndex;
}