| # Licensed to the Apache Software Foundation (ASF) under one |
| # or more contributor license agreements. See the NOTICE file |
| # distributed with this work for additional information |
| # regarding copyright ownership. The ASF licenses this file |
| # to you under the Apache License, Version 2.0 (the |
| # "License"); you may not use this file except in compliance |
| # with the License. You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, |
| # software distributed under the License is distributed on an |
| # "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| # KIND, either express or implied. See the License for the |
| # specific language governing permissions and limitations |
| # under the License. |
| |
| #' @include R6.R |
| #' @include enums.R |
| |
| #' @title class arrow::Buffer |
| #' |
| #' @usage NULL |
| #' @format NULL |
| #' @docType class |
| #' |
| #' @section Methods: |
| #' |
| #' - `$is_mutable()` : |
| #' - `$ZeroPadding()` : |
| #' - `$size()` : |
| #' - `$capacity()`: |
| #' |
| #' @rdname arrow__Buffer |
| #' @name arrow__Buffer |
| `arrow::Buffer` <- R6Class("arrow::Buffer", inherit = `arrow::Object`, |
| public = list( |
| ZeroPadding = function() Buffer__ZeroPadding(self), |
| data = function() Buffer__data(self) |
| ), |
| |
| active = list( |
| is_mutable = function() Buffer__is_mutable(self), |
| size = function() Buffer__size(self), |
| capacity = function() Buffer__capacity(self) |
| ) |
| ) |
| |
| #' @export |
| `as.raw.arrow::Buffer` <- function(x) x$data() |
| |
| #' Create a [arrow::Buffer][arrow__Buffer] from an R object |
| #' |
| #' @param x R object. Only raw, numeric and integer vectors are currently supported |
| #' |
| #' @return an instance of [arrow::Buffer][arrow__Buffer] that borrows memory from `x` |
| #' |
| #' @export |
| buffer <- function(x){ |
| UseMethod("buffer") |
| } |
| |
| #' @export |
| buffer.default <- function(x) { |
| stop("cannot convert to Buffer") |
| } |
| |
| #' @export |
| buffer.raw <- function(x) { |
| shared_ptr(`arrow::Buffer`, r___RBuffer__initialize(x)) |
| } |
| |
| #' @export |
| buffer.numeric <- function(x) { |
| shared_ptr(`arrow::Buffer`, r___RBuffer__initialize(x)) |
| } |
| |
| #' @export |
| buffer.integer <- function(x) { |
| shared_ptr(`arrow::Buffer`, r___RBuffer__initialize(x)) |
| } |
| |
| #' @export |
| buffer.complex <- function(x) { |
| shared_ptr(`arrow::Buffer`, r___RBuffer__initialize(x)) |
| } |
| |
| #' @export |
| `buffer.arrow::Buffer` <- function(x) { |
| x |
| } |
| |