class Erlang::ETF::Atom

| 1 | 2 | Len | | — | — | ——– | | 100 | Len | AtomName |

An atom is stored with a 2 byte unsigned length in big-endian order, followed by `Len` numbers of 8 bit Latin1 characters that forms the `AtomName`.

Note: The maximum allowed value for `Len` is 255.

(see [`ATOM_EXT`])

[`ATOM_EXT`]: erlang.org/doc/apps/erts/erl_ext_dist.html#ATOM_EXT

Constants

UINT16BE

Public Class Methods

[](term) click to toggle source
# File lib/erlang/etf/atom.rb, line 25
def [](term)
  return term if term.kind_of?(Erlang::ETF::Term)
  term = Erlang.from(term) if not term.kind_of?(Erlang::Atom)
  return new(term)
end
erlang_load(buffer) click to toggle source
# File lib/erlang/etf/atom.rb, line 31
def erlang_load(buffer)
  size, = buffer.read(2).unpack(UINT16BE)
  data = buffer.read(size)
  return new(Erlang::Atom[data])
end
new(term) click to toggle source
# File lib/erlang/etf/atom.rb, line 38
def initialize(term)
  raise ArgumentError, "term must be of type Erlang::Atom" if not term.kind_of?(Erlang::Atom)
  @term = term
end

Public Instance Methods

erlang_dump(buffer = ::String.new.force_encoding(BINARY_ENCODING)) click to toggle source
# File lib/erlang/etf/atom.rb, line 43
def erlang_dump(buffer = ::String.new.force_encoding(BINARY_ENCODING))
  buffer << ATOM_EXT
  buffer << [@term.size].pack(UINT16BE)
  buffer << Erlang::ETF::Term.binary_encoding(@term.data)
  return buffer
end