Method PackOrConcatSize

tensorflow/core/kernels/tensor_array.h:302–307

Return the size that should be used by pack or concat op.

  // Return the size that should be used by pack or concat op.
  Status PackOrConcatSize(int32* size) {
    mutex_lock l(mu_);
    TF_RETURN_IF_ERROR(LockedReturnIfClosed());
    *size = is_grad_ ? marked_size_ : tensors_.size();
    return Status::OK();
  }

  // Once a TensorArray is being used for gradient calculations, it
  // should be marked as no longer resizeable.