Java Code Examples for org.objectweb.asm.Opcodes#F_CHOP

The following examples show how to use org.objectweb.asm.Opcodes#F_CHOP . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: FrameNode.java    From Cafebabe with GNU General Public License v3.0 6 votes vote down vote up 
@Override
public void accept(final MethodVisitor methodVisitor) {
	switch (type) {
	case Opcodes.F_NEW:
	case Opcodes.F_FULL:
		methodVisitor.visitFrame(type, local.size(), asArray(local), stack.size(), asArray(stack));
		break;
	case Opcodes.F_APPEND:
		methodVisitor.visitFrame(type, local.size(), asArray(local), 0, null);
		break;
	case Opcodes.F_CHOP:
		methodVisitor.visitFrame(type, local.size(), null, 0, null);
		break;
	case Opcodes.F_SAME:
		methodVisitor.visitFrame(type, 0, null, 0, null);
		break;
	case Opcodes.F_SAME1:
		methodVisitor.visitFrame(type, 0, null, 1, asArray(stack));
		break;
	default:
		throw new IllegalArgumentException();
	}
}
Example 2
Source File: FrameNode.java    From JReFrameworker with MIT License 6 votes vote down vote up 
@Override
public void accept(final MethodVisitor methodVisitor) {
  switch (type) {
    case Opcodes.F_NEW:
    case Opcodes.F_FULL:
      methodVisitor.visitFrame(type, local.size(), asArray(local), stack.size(), asArray(stack));
      break;
    case Opcodes.F_APPEND:
      methodVisitor.visitFrame(type, local.size(), asArray(local), 0, null);
      break;
    case Opcodes.F_CHOP:
      methodVisitor.visitFrame(type, local.size(), null, 0, null);
      break;
    case Opcodes.F_SAME:
      methodVisitor.visitFrame(type, 0, null, 0, null);
      break;
    case Opcodes.F_SAME1:
      methodVisitor.visitFrame(type, 0, null, 1, asArray(stack));
      break;
    default:
      throw new IllegalArgumentException();
  }
}
Example 3
Source File: Locals.java    From Mixin with MIT License 6 votes vote down vote up 
/**
 * Compute a new frame size based on the supplied frame type and the size of
 * locals contained in the frame (this may differ from the number of actual
 * frame slots if the frame contains doubles or longs)
 * 
 * @param currentSize current frame size
 * @param type frame entry type
 * @param size frame entry size
 * @return new frame size
 */
private static int getAdjustedFrameSize(int currentSize, int type, int size) {
    switch (type) {
        case Opcodes.F_NEW:
        case Opcodes.F_FULL:
            return size;
        case Opcodes.F_APPEND:
            return currentSize + size;
        case Opcodes.F_CHOP:
            return currentSize - size;
        case Opcodes.F_SAME:
        case Opcodes.F_SAME1:
            return currentSize;
        default:
            return currentSize;
    }
 }
Example 4
Source File: FrameNode.java    From JReFrameworker with MIT License 6 votes vote down vote up 
@Override
public void accept(final MethodVisitor methodVisitor) {
  switch (type) {
    case Opcodes.F_NEW:
    case Opcodes.F_FULL:
      methodVisitor.visitFrame(type, local.size(), asArray(local), stack.size(), asArray(stack));
      break;
    case Opcodes.F_APPEND:
      methodVisitor.visitFrame(type, local.size(), asArray(local), 0, null);
      break;
    case Opcodes.F_CHOP:
      methodVisitor.visitFrame(type, local.size(), null, 0, null);
      break;
    case Opcodes.F_SAME:
      methodVisitor.visitFrame(type, 0, null, 0, null);
      break;
    case Opcodes.F_SAME1:
      methodVisitor.visitFrame(type, 0, null, 1, asArray(stack));
      break;
    default:
      throw new IllegalArgumentException();
  }
}
Example 5
Source File: FrameNode.java    From JByteMod-Beta with GNU General Public License v2.0 6 votes vote down vote up 
/**
 * Makes the given visitor visit this stack map frame.
 * 
 * @param mv
 *          a method visitor.
 */
@Override
public void accept(final MethodVisitor mv) {
  switch (type) {
  case Opcodes.F_NEW:
  case Opcodes.F_FULL:
    mv.visitFrame(type, local.size(), asArray(local), stack.size(), asArray(stack));
    break;
  case Opcodes.F_APPEND:
    mv.visitFrame(type, local.size(), asArray(local), 0, null);
    break;
  case Opcodes.F_CHOP:
    mv.visitFrame(type, local.size(), null, 0, null);
    break;
  case Opcodes.F_SAME:
    mv.visitFrame(type, 0, null, 0, null);
    break;
  case Opcodes.F_SAME1:
    mv.visitFrame(type, 0, null, 1, asArray(stack));
    break;
  }
}
Example 6
Source File: FrameNode.java    From Concurnas with MIT License 6 votes vote down vote up 
@Override
public void accept(final MethodVisitor methodVisitor) {
  switch (type) {
    case Opcodes.F_NEW:
    case Opcodes.F_FULL:
      methodVisitor.visitFrame(type, local.size(), asArray(local), stack.size(), asArray(stack));
      break;
    case Opcodes.F_APPEND:
      methodVisitor.visitFrame(type, local.size(), asArray(local), 0, null);
      break;
    case Opcodes.F_CHOP:
      methodVisitor.visitFrame(type, local.size(), null, 0, null);
      break;
    case Opcodes.F_SAME:
      methodVisitor.visitFrame(type, 0, null, 0, null);
      break;
    case Opcodes.F_SAME1:
      methodVisitor.visitFrame(type, 0, null, 1, asArray(stack));
      break;
    default:
      throw new IllegalArgumentException();
  }
}
Example 7
Source File: FrameNode.java    From Cafebabe with GNU General Public License v3.0 6 votes vote down vote up 
/**
 * Constructs a new {@link FrameNode}.
 *
 * @param type
 *          the type of this frame. Must be {@link Opcodes#F_NEW} for expanded frames, or {@link Opcodes#F_FULL}, {@link Opcodes#F_APPEND}, {@link Opcodes#F_CHOP}, {@link Opcodes#F_SAME} or {@link Opcodes#F_APPEND}, {@link Opcodes#F_SAME1} for compressed frames.
 * @param numLocal
 *          number of local variables of this stack map frame.
 * @param local
 *          the types of the local variables of this stack map frame. Elements of this list can be Integer, String or LabelNode objects (for primitive, reference and uninitialized types respectively - see {@link MethodVisitor}).
 * @param numStack
 *          number of operand stack elements of this stack map frame.
 * @param stack
 *          the types of the operand stack elements of this stack map frame. Elements of this list can be Integer, String or LabelNode objects (for primitive, reference and uninitialized types respectively - see {@link MethodVisitor}).
 */
public FrameNode(final int type, final int numLocal, final Object[] local, final int numStack, final Object[] stack) {
	super(-1);
	this.type = type;
	switch (type) {
	case Opcodes.F_NEW:
	case Opcodes.F_FULL:
		this.local = Util.asArrayList(numLocal, local);
		this.stack = Util.asArrayList(numStack, stack);
		break;
	case Opcodes.F_APPEND:
		this.local = Util.asArrayList(numLocal, local);
		break;
	case Opcodes.F_CHOP:
		this.local = Util.asArrayList(numLocal);
		break;
	case Opcodes.F_SAME:
		break;
	case Opcodes.F_SAME1:
		this.stack = Util.asArrayList(1, stack);
		break;
	default:
		throw new IllegalArgumentException();
	}
}
Example 8
Source File: SAXCodeAdapter.java    From JByteMod-Beta with GNU General Public License v2.0 5 votes vote down vote up 
@Override
public void visitFrame(final int type, final int nLocal, final Object[] local, final int nStack, final Object[] stack) {
  AttributesImpl attrs = new AttributesImpl();
  switch (type) {
  case Opcodes.F_NEW:
  case Opcodes.F_FULL:
    if (type == Opcodes.F_NEW) {
      attrs.addAttribute("", "type", "type", "", "NEW");
    } else {
      attrs.addAttribute("", "type", "type", "", "FULL");
    }
    sa.addStart("frame", attrs);
    appendFrameTypes(true, nLocal, local);
    appendFrameTypes(false, nStack, stack);
    break;
  case Opcodes.F_APPEND:
    attrs.addAttribute("", "type", "type", "", "APPEND");
    sa.addStart("frame", attrs);
    appendFrameTypes(true, nLocal, local);
    break;
  case Opcodes.F_CHOP:
    attrs.addAttribute("", "type", "type", "", "CHOP");
    attrs.addAttribute("", "count", "count", "", Integer.toString(nLocal));
    sa.addStart("frame", attrs);
    break;
  case Opcodes.F_SAME:
    attrs.addAttribute("", "type", "type", "", "SAME");
    sa.addStart("frame", attrs);
    break;
  case Opcodes.F_SAME1:
    attrs.addAttribute("", "type", "type", "", "SAME1");
    sa.addStart("frame", attrs);
    appendFrameTypes(false, 1, stack);
    break;
  }
  sa.addEnd("frame");
}
Example 9
Source File: Textifier.java    From JByteMod-Beta with GNU General Public License v2.0 5 votes vote down vote up 
@Override
public void visitFrame(final int type, final int nLocal, final Object[] local, final int nStack, final Object[] stack) {
  buf.setLength(0);
  buf.append(ltab);
  buf.append("FRAME ");
  switch (type) {
  case Opcodes.F_NEW:
  case Opcodes.F_FULL:
    buf.append("FULL [");
    appendFrameTypes(nLocal, local);
    buf.append("] [");
    appendFrameTypes(nStack, stack);
    buf.append(']');
    break;
  case Opcodes.F_APPEND:
    buf.append("APPEND [");
    appendFrameTypes(nLocal, local);
    buf.append(']');
    break;
  case Opcodes.F_CHOP:
    buf.append("CHOP ").append(nLocal);
    break;
  case Opcodes.F_SAME:
    buf.append("SAME");
    break;
  case Opcodes.F_SAME1:
    buf.append("SAME1 ");
    appendFrameTypes(1, stack);
    break;
  }
  buf.append('\n');
  text.add(buf.toString());
}
Example 10
Source File: FrameNode.java    From JReFrameworker with MIT License 5 votes vote down vote up 
/**
 * Constructs a new {@link FrameNode}.
 *
 * @param type the type of this frame. Must be {@link Opcodes#F_NEW} for expanded frames, or
 *     {@link Opcodes#F_FULL}, {@link Opcodes#F_APPEND}, {@link Opcodes#F_CHOP}, {@link
 *     Opcodes#F_SAME} or {@link Opcodes#F_APPEND}, {@link Opcodes#F_SAME1} for compressed frames.
 * @param numLocal number of local variables of this stack map frame.
 * @param local the types of the local variables of this stack map frame. Elements of this list
 *     can be Integer, String or LabelNode objects (for primitive, reference and uninitialized
 *     types respectively - see {@link MethodVisitor}).
 * @param numStack number of operand stack elements of this stack map frame.
 * @param stack the types of the operand stack elements of this stack map frame. Elements of this
 *     list can be Integer, String or LabelNode objects (for primitive, reference and
 *     uninitialized types respectively - see {@link MethodVisitor}).
 */
public FrameNode(
    final int type,
    final int numLocal,
    final Object[] local,
    final int numStack,
    final Object[] stack) {
  super(-1);
  this.type = type;
  switch (type) {
    case Opcodes.F_NEW:
    case Opcodes.F_FULL:
      this.local = Util.asArrayList(numLocal, local);
      this.stack = Util.asArrayList(numStack, stack);
      break;
    case Opcodes.F_APPEND:
      this.local = Util.asArrayList(numLocal, local);
      break;
    case Opcodes.F_CHOP:
      this.local = Util.asArrayList(numLocal);
      break;
    case Opcodes.F_SAME:
      break;
    case Opcodes.F_SAME1:
      this.stack = Util.asArrayList(1, stack);
      break;
    default:
      throw new IllegalArgumentException();
  }
}
Example 11
Source File: Textifier.java    From JReFrameworker with MIT License 5 votes vote down vote up 
@Override
public void visitFrame(
    final int type,
    final int numLocal,
    final Object[] local,
    final int numStack,
    final Object[] stack) {
  stringBuilder.setLength(0);
  stringBuilder.append(ltab);
  stringBuilder.append("FRAME ");
  switch (type) {
    case Opcodes.F_NEW:
    case Opcodes.F_FULL:
      stringBuilder.append("FULL [");
      appendFrameTypes(numLocal, local);
      stringBuilder.append("] [");
      appendFrameTypes(numStack, stack);
      stringBuilder.append(']');
      break;
    case Opcodes.F_APPEND:
      stringBuilder.append("APPEND [");
      appendFrameTypes(numLocal, local);
      stringBuilder.append(']');
      break;
    case Opcodes.F_CHOP:
      stringBuilder.append("CHOP ").append(numLocal);
      break;
    case Opcodes.F_SAME:
      stringBuilder.append("SAME");
      break;
    case Opcodes.F_SAME1:
      stringBuilder.append("SAME1 ");
      appendFrameTypes(1, stack);
      break;
    default:
      throw new IllegalArgumentException();
  }
  stringBuilder.append('\n');
  text.add(stringBuilder.toString());
}
Example 12
Source File: FrameNode.java    From Concurnas with MIT License 5 votes vote down vote up 
/**
 * Constructs a new {@link FrameNode}.
 *
 * @param type the type of this frame. Must be {@link Opcodes#F_NEW} for expanded frames, or
 *     {@link Opcodes#F_FULL}, {@link Opcodes#F_APPEND}, {@link Opcodes#F_CHOP}, {@link
 *     Opcodes#F_SAME} or {@link Opcodes#F_APPEND}, {@link Opcodes#F_SAME1} for compressed frames.
 * @param numLocal number of local variables of this stack map frame.
 * @param local the types of the local variables of this stack map frame. Elements of this list
 *     can be Integer, String or LabelNode objects (for primitive, reference and uninitialized
 *     types respectively - see {@link MethodVisitor}).
 * @param numStack number of operand stack elements of this stack map frame.
 * @param stack the types of the operand stack elements of this stack map frame. Elements of this
 *     list can be Integer, String or LabelNode objects (for primitive, reference and
 *     uninitialized types respectively - see {@link MethodVisitor}).
 */
public FrameNode(
    final int type,
    final int numLocal,
    final Object[] local,
    final int numStack,
    final Object[] stack) {
  super(-1);
  this.type = type;
  switch (type) {
    case Opcodes.F_NEW:
    case Opcodes.F_FULL:
      this.local = Util.asArrayList(numLocal, local);
      this.stack = Util.asArrayList(numStack, stack);
      break;
    case Opcodes.F_APPEND:
      this.local = Util.asArrayList(numLocal, local);
      break;
    case Opcodes.F_CHOP:
      this.local = Util.asArrayList(numLocal);
      break;
    case Opcodes.F_SAME:
      break;
    case Opcodes.F_SAME1:
      this.stack = Util.asArrayList(1, stack);
      break;
    default:
      throw new IllegalArgumentException();
  }
}
Example 13
Source File: BytecodeTypeInference.java    From bazel with Apache License 2.0 4 votes vote down vote up 
@Override
public void visitFrame(int type, int nLocal, Object[] local, int nStack, Object[] stack) {
  switch (type) {
    case Opcodes.F_NEW:
      // Expanded form.
      previousFrame =
          FrameInfo.create(
              convertTypesInStackMapFrame(nLocal, local),
              convertTypesInStackMapFrame(nStack, stack));
      break;
    case Opcodes.F_SAME:
      // This frame type indicates that the frame has exactly the same local variables as the
      // previous frame and that the operand stack is empty.
      previousFrame = FrameInfo.create(previousFrame.locals(), ImmutableList.of());
      break;
    case Opcodes.F_SAME1:
      // This frame type indicates that the frame has exactly the same local variables as the
      // previous frame and that the operand stack has one entry.
      previousFrame =
          FrameInfo.create(previousFrame.locals(), convertTypesInStackMapFrame(nStack, stack));
      break;
    case Opcodes.F_APPEND:
      // This frame type indicates that the frame has the same locals as the previous frame except
      // that k additional locals are defined, and that the operand stack is empty.
      previousFrame =
          FrameInfo.create(
              appendArrayToList(previousFrame.locals(), nLocal, local), ImmutableList.of());
      break;
    case Opcodes.F_CHOP:
      // This frame type indicates that the frame has the same local variables as the previous
      // frame except that the last k local variables are absent, and that the operand stack is
      // empty.
      previousFrame =
          FrameInfo.create(
              removeBackFromList(previousFrame.locals(), nLocal), ImmutableList.of());
      break;
    case Opcodes.F_FULL:
      previousFrame =
          FrameInfo.create(
              convertTypesInStackMapFrame(nLocal, local),
              convertTypesInStackMapFrame(nStack, stack));
      break;
    default:
      // continue below
  }
  // Update types for operand stack and local variables.
  operandStack.clear();
  operandStack.addAll(previousFrame.stack());
  localVariableSlots.clear();
  localVariableSlots.addAll(previousFrame.locals());
  super.visitFrame(type, nLocal, local, nStack, stack);
}
Example 14
Source File: CheckMethodAdapter.java    From JReFrameworker with MIT License 4 votes vote down vote up 
@Override
public void visitFrame(
    final int type,
    final int numLocal,
    final Object[] local,
    final int numStack,
    final Object[] stack) {
  if (insnCount == lastFrameInsnIndex) {
    throw new IllegalStateException("At most one frame can be visited at a given code location.");
  }
  lastFrameInsnIndex = insnCount;
  int maxNumLocal;
  int maxNumStack;
  switch (type) {
    case Opcodes.F_NEW:
    case Opcodes.F_FULL:
      maxNumLocal = Integer.MAX_VALUE;
      maxNumStack = Integer.MAX_VALUE;
      break;

    case Opcodes.F_SAME:
      maxNumLocal = 0;
      maxNumStack = 0;
      break;

    case Opcodes.F_SAME1:
      maxNumLocal = 0;
      maxNumStack = 1;
      break;

    case Opcodes.F_APPEND:
    case Opcodes.F_CHOP:
      maxNumLocal = 3;
      maxNumStack = 0;
      break;

    default:
      throw new IllegalArgumentException("Invalid frame type " + type);
  }

  if (numLocal > maxNumLocal) {
    throw new IllegalArgumentException(
        "Invalid numLocal=" + numLocal + " for frame type " + type);
  }
  if (numStack > maxNumStack) {
    throw new IllegalArgumentException(
        "Invalid numStack=" + numStack + " for frame type " + type);
  }

  if (type != Opcodes.F_CHOP) {
    if (numLocal > 0 && (local == null || local.length < numLocal)) {
      throw new IllegalArgumentException("Array local[] is shorter than numLocal");
    }
    for (int i = 0; i < numLocal; ++i) {
      checkFrameValue(local[i]);
    }
  }
  if (numStack > 0 && (stack == null || stack.length < numStack)) {
    throw new IllegalArgumentException("Array stack[] is shorter than numStack");
  }
  for (int i = 0; i < numStack; ++i) {
    checkFrameValue(stack[i]);
  }
  if (type == Opcodes.F_NEW) {
    ++numExpandedFrames;
  } else {
    ++numCompressedFrames;
  }
  if (numExpandedFrames > 0 && numCompressedFrames > 0) {
    throw new IllegalArgumentException("Expanded and compressed frames must not be mixed.");
  }
  super.visitFrame(type, numLocal, local, numStack, stack);
}
Example 15
Source File: FrameNode.java    From JByteMod-Beta with GNU General Public License v2.0 4 votes vote down vote up 
/**
 * Constructs a new {@link FrameNode}.
 * 
 * @param type
 *          the type of this frame. Must be {@link Opcodes#F_NEW} for expanded
 *          frames, or {@link Opcodes#F_FULL}, {@link Opcodes#F_APPEND},
 *          {@link Opcodes#F_CHOP}, {@link Opcodes#F_SAME} or
 *          {@link Opcodes#F_APPEND}, {@link Opcodes#F_SAME1} for compressed
 *          frames.
 * @param nLocal
 *          number of local variables of this stack map frame.
 * @param local
 *          the types of the local variables of this stack map frame. Elements
 *          of this list can be Integer, String or LabelNode objects (for
 *          primitive, reference and uninitialized types respectively - see
 *          {@link MethodVisitor}).
 * @param nStack
 *          number of operand stack elements of this stack map frame.
 * @param stack
 *          the types of the operand stack elements of this stack map frame.
 *          Elements of this list can be Integer, String or LabelNode objects
 *          (for primitive, reference and uninitialized types respectively -
 *          see {@link MethodVisitor}).
 */
public FrameNode(final int type, final int nLocal, final Object[] local, final int nStack, final Object[] stack) {
  super(-1);
  this.type = type;
  switch (type) {
  case Opcodes.F_NEW:
  case Opcodes.F_FULL:
    this.local = asList(nLocal, local);
    this.stack = asList(nStack, stack);
    break;
  case Opcodes.F_APPEND:
    this.local = asList(nLocal, local);
    break;
  case Opcodes.F_CHOP:
    this.local = new ArrayList<Object>(Arrays.asList(new Object[nLocal]));
    break;
  case Opcodes.F_SAME:
    break;
  case Opcodes.F_SAME1:
    this.stack = asList(1, stack);
    break;
  }
}
Example 16
Source File: ASMifier.java    From JReFrameworker with MIT License 4 votes vote down vote up 
@Override
public void visitFrame(
    final int type,
    final int numLocal,
    final Object[] local,
    final int numStack,
    final Object[] stack) {
  stringBuilder.setLength(0);
  switch (type) {
    case Opcodes.F_NEW:
    case Opcodes.F_FULL:
      declareFrameTypes(numLocal, local);
      declareFrameTypes(numStack, stack);
      if (type == Opcodes.F_NEW) {
        stringBuilder.append(name).append(".visitFrame(Opcodes.F_NEW, ");
      } else {
        stringBuilder.append(name).append(".visitFrame(Opcodes.F_FULL, ");
      }
      stringBuilder.append(numLocal).append(NEW_OBJECT_ARRAY);
      appendFrameTypes(numLocal, local);
      stringBuilder.append("}, ").append(numStack).append(NEW_OBJECT_ARRAY);
      appendFrameTypes(numStack, stack);
      stringBuilder.append('}');
      break;
    case Opcodes.F_APPEND:
      declareFrameTypes(numLocal, local);
      stringBuilder
          .append(name)
          .append(".visitFrame(Opcodes.F_APPEND,")
          .append(numLocal)
          .append(NEW_OBJECT_ARRAY);
      appendFrameTypes(numLocal, local);
      stringBuilder.append("}, 0, null");
      break;
    case Opcodes.F_CHOP:
      stringBuilder
          .append(name)
          .append(".visitFrame(Opcodes.F_CHOP,")
          .append(numLocal)
          .append(", null, 0, null");
      break;
    case Opcodes.F_SAME:
      stringBuilder.append(name).append(".visitFrame(Opcodes.F_SAME, 0, null, 0, null");
      break;
    case Opcodes.F_SAME1:
      declareFrameTypes(1, stack);
      stringBuilder
          .append(name)
          .append(".visitFrame(Opcodes.F_SAME1, 0, null, 1, new Object[] {");
      appendFrameTypes(1, stack);
      stringBuilder.append('}');
      break;
    default:
      throw new IllegalArgumentException();
  }
  stringBuilder.append(");\n");
  text.add(stringBuilder.toString());
}
Example 17
Source File: ASMifier.java    From JByteMod-Beta with GNU General Public License v2.0 4 votes vote down vote up 
@Override
public void visitFrame(final int type, final int nLocal, final Object[] local, final int nStack, final Object[] stack) {
  buf.setLength(0);
  switch (type) {
  case Opcodes.F_NEW:
  case Opcodes.F_FULL:
    declareFrameTypes(nLocal, local);
    declareFrameTypes(nStack, stack);
    if (type == Opcodes.F_NEW) {
      buf.append(name).append(".visitFrame(Opcodes.F_NEW, ");
    } else {
      buf.append(name).append(".visitFrame(Opcodes.F_FULL, ");
    }
    buf.append(nLocal).append(", new Object[] {");
    appendFrameTypes(nLocal, local);
    buf.append("}, ").append(nStack).append(", new Object[] {");
    appendFrameTypes(nStack, stack);
    buf.append('}');
    break;
  case Opcodes.F_APPEND:
    declareFrameTypes(nLocal, local);
    buf.append(name).append(".visitFrame(Opcodes.F_APPEND,").append(nLocal).append(", new Object[] {");
    appendFrameTypes(nLocal, local);
    buf.append("}, 0, null");
    break;
  case Opcodes.F_CHOP:
    buf.append(name).append(".visitFrame(Opcodes.F_CHOP,").append(nLocal).append(", null, 0, null");
    break;
  case Opcodes.F_SAME:
    buf.append(name).append(".visitFrame(Opcodes.F_SAME, 0, null, 0, null");
    break;
  case Opcodes.F_SAME1:
    declareFrameTypes(1, stack);
    buf.append(name).append(".visitFrame(Opcodes.F_SAME1, 0, null, 1, new Object[] {");
    appendFrameTypes(1, stack);
    buf.append('}');
    break;
  }
  buf.append(");\n");
  text.add(buf.toString());
}
Example 18
Source File: CheckMethodAdapter.java    From JByteMod-Beta with GNU General Public License v2.0 4 votes vote down vote up 
@Override
public void visitFrame(final int type, final int nLocal, final Object[] local, final int nStack, final Object[] stack) {
  if (insnCount == lastFrame) {
    throw new IllegalStateException("At most one frame can be visited at a given code location.");
  }
  lastFrame = insnCount;
  int mLocal;
  int mStack;
  switch (type) {
  case Opcodes.F_NEW:
  case Opcodes.F_FULL:
    mLocal = Integer.MAX_VALUE;
    mStack = Integer.MAX_VALUE;
    break;

  case Opcodes.F_SAME:
    mLocal = 0;
    mStack = 0;
    break;

  case Opcodes.F_SAME1:
    mLocal = 0;
    mStack = 1;
    break;

  case Opcodes.F_APPEND:
  case Opcodes.F_CHOP:
    mLocal = 3;
    mStack = 0;
    break;

  default:
    throw new IllegalArgumentException("Invalid frame type " + type);
  }

  if (nLocal > mLocal) {
    throw new IllegalArgumentException("Invalid nLocal=" + nLocal + " for frame type " + type);
  }
  if (nStack > mStack) {
    throw new IllegalArgumentException("Invalid nStack=" + nStack + " for frame type " + type);
  }

  if (type != Opcodes.F_CHOP) {
    if (nLocal > 0 && (local == null || local.length < nLocal)) {
      throw new IllegalArgumentException("Array local[] is shorter than nLocal");
    }
    for (int i = 0; i < nLocal; ++i) {
      checkFrameValue(local[i]);
    }
  }
  if (nStack > 0 && (stack == null || stack.length < nStack)) {
    throw new IllegalArgumentException("Array stack[] is shorter than nStack");
  }
  for (int i = 0; i < nStack; ++i) {
    checkFrameValue(stack[i]);
  }
  if (type == Opcodes.F_NEW) {
    ++expandedFrames;
  } else {
    ++compressedFrames;
  }
  if (expandedFrames > 0 && compressedFrames > 0) {
    throw new RuntimeException("Expanded and compressed frames must not be mixed.");
  }
  super.visitFrame(type, nLocal, local, nStack, stack);
}
Example 19
Source File: ASMifier.java    From JReFrameworker with MIT License 4 votes vote down vote up 
@Override
public void visitFrame(
    final int type,
    final int numLocal,
    final Object[] local,
    final int numStack,
    final Object[] stack) {
  stringBuilder.setLength(0);
  switch (type) {
    case Opcodes.F_NEW:
    case Opcodes.F_FULL:
      declareFrameTypes(numLocal, local);
      declareFrameTypes(numStack, stack);
      if (type == Opcodes.F_NEW) {
        stringBuilder.append(name).append(".visitFrame(Opcodes.F_NEW, ");
      } else {
        stringBuilder.append(name).append(".visitFrame(Opcodes.F_FULL, ");
      }
      stringBuilder.append(numLocal).append(NEW_OBJECT_ARRAY);
      appendFrameTypes(numLocal, local);
      stringBuilder.append("}, ").append(numStack).append(NEW_OBJECT_ARRAY);
      appendFrameTypes(numStack, stack);
      stringBuilder.append('}');
      break;
    case Opcodes.F_APPEND:
      declareFrameTypes(numLocal, local);
      stringBuilder
          .append(name)
          .append(".visitFrame(Opcodes.F_APPEND,")
          .append(numLocal)
          .append(NEW_OBJECT_ARRAY);
      appendFrameTypes(numLocal, local);
      stringBuilder.append("}, 0, null");
      break;
    case Opcodes.F_CHOP:
      stringBuilder
          .append(name)
          .append(".visitFrame(Opcodes.F_CHOP,")
          .append(numLocal)
          .append(", null, 0, null");
      break;
    case Opcodes.F_SAME:
      stringBuilder.append(name).append(".visitFrame(Opcodes.F_SAME, 0, null, 0, null");
      break;
    case Opcodes.F_SAME1:
      declareFrameTypes(1, stack);
      stringBuilder
          .append(name)
          .append(".visitFrame(Opcodes.F_SAME1, 0, null, 1, new Object[] {");
      appendFrameTypes(1, stack);
      stringBuilder.append('}');
      break;
    default:
      throw new IllegalArgumentException();
  }
  stringBuilder.append(");\n");
  text.add(stringBuilder.toString());
}
Example 20
Source File: CheckMethodAdapter.java    From JReFrameworker with MIT License 4 votes vote down vote up 
@Override
public void visitFrame(
    final int type,
    final int numLocal,
    final Object[] local,
    final int numStack,
    final Object[] stack) {
  if (insnCount == lastFrameInsnIndex) {
    throw new IllegalStateException("At most one frame can be visited at a given code location.");
  }
  lastFrameInsnIndex = insnCount;
  int maxNumLocal;
  int maxNumStack;
  switch (type) {
    case Opcodes.F_NEW:
    case Opcodes.F_FULL:
      maxNumLocal = Integer.MAX_VALUE;
      maxNumStack = Integer.MAX_VALUE;
      break;

    case Opcodes.F_SAME:
      maxNumLocal = 0;
      maxNumStack = 0;
      break;

    case Opcodes.F_SAME1:
      maxNumLocal = 0;
      maxNumStack = 1;
      break;

    case Opcodes.F_APPEND:
    case Opcodes.F_CHOP:
      maxNumLocal = 3;
      maxNumStack = 0;
      break;

    default:
      throw new IllegalArgumentException("Invalid frame type " + type);
  }

  if (numLocal > maxNumLocal) {
    throw new IllegalArgumentException(
        "Invalid numLocal=" + numLocal + " for frame type " + type);
  }
  if (numStack > maxNumStack) {
    throw new IllegalArgumentException(
        "Invalid numStack=" + numStack + " for frame type " + type);
  }

  if (type != Opcodes.F_CHOP) {
    if (numLocal > 0 && (local == null || local.length < numLocal)) {
      throw new IllegalArgumentException("Array local[] is shorter than numLocal");
    }
    for (int i = 0; i < numLocal; ++i) {
      checkFrameValue(local[i]);
    }
  }
  if (numStack > 0 && (stack == null || stack.length < numStack)) {
    throw new IllegalArgumentException("Array stack[] is shorter than numStack");
  }
  for (int i = 0; i < numStack; ++i) {
    checkFrameValue(stack[i]);
  }
  if (type == Opcodes.F_NEW) {
    ++numExpandedFrames;
  } else {
    ++numCompressedFrames;
  }
  if (numExpandedFrames > 0 && numCompressedFrames > 0) {
    throw new IllegalArgumentException("Expanded and compressed frames must not be mixed.");
  }
  super.visitFrame(type, numLocal, local, numStack, stack);
}