enums.R

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# or more contributor license agreements.  See the NOTICE file
# distributed with this work for additional information
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# 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
#
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# 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.

#' @export
`print.arrow-enum` <- function(x, ...){
  NextMethod()
}

enum <- function(class, ..., .list = list(...)){
  structure(
    .list,
    class = c(class, "arrow-enum")
  )
}

#' @rdname DataType
#' @export
TimeUnit <- enum("arrow::TimeUnit::type",
  SECOND = 0L, MILLI = 1L, MICRO = 2L, NANO = 3L
)

#' @rdname DataType
#' @export
DateUnit <- enum("arrow::DateUnit", DAY = 0L, MILLI = 1L)

#' @rdname DataType
#' @export
Type <- enum("arrow::Type::type",
  "NA" = 0L, BOOL = 1L, UINT8 = 2L, INT8 = 3L, UINT16 = 4L, INT16 = 5L,
  UINT32 = 6L, INT32 = 7L, UINT64 = 8L, INT64 = 9L,
  HALF_FLOAT = 10L, FLOAT = 11L, DOUBLE = 12L, STRING = 13L,
  BINARY = 14L, FIXED_SIZE_BINARY = 15L, DATE32 = 16L, DATE64 = 17L, TIMESTAMP = 18L,
  TIME32 = 19L, TIME64 = 20L, INTERVAL = 21L, DECIMAL = 22L, LIST = 23L, STRUCT = 24L,
  UNION = 25L, DICTIONARY = 26L, MAP = 27L
)

#' @rdname DataType
#' @export
StatusCode <- enum("arrow::StatusCode",
  OK = 0L, OutOfMemory = 1L, KeyError = 2L, TypeError = 3L,
  Invalid = 4L, IOError = 5L, CapacityError = 6L,
  UnknownError = 9L, NotImplemented = 10L, SerializationError = 11L,
  PythonError = 12L, RError = 13L,
  PlasmaObjectExists = 20L, PlasmaObjectNonexistent = 21L,
  PlasmaStoreFull = 22L, PlasmaObjectAlreadySealed = 23L
)

#' @rdname DataType
#' @export
FileMode <- enum("arrow::io::FileMode",
  READ = 0L, WRITE = 1L, READWRITE = 2L
)

#' @rdname DataType
#' @export
MessageType <- enum("arrow::ipc::Message::Type",
  NONE = 0L, SCHEMA = 1L, DICTIONARY_BATCH = 2L, RECORD_BATCH = 3L, TENSOR = 4L
)