public void visitFrame()

in asm-util/src/main/java/org/objectweb/asm/util/CheckMethodAdapter.java [585:656]
66 lines of code
22 McCabe index (conditional complexity)

  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);
  }