class Erlang::ETF::NewReference
| 1 | 2 | N | 1 | N' | | — | — | —- | ——– | —— | | 114 | Len | Node | Creation | ID … |
`Node` and `Creation` are as in [`REFERENCE_EXT`].
`ID` contains a sequence of big-endian unsigned integers (4 bytes each, so `N'` is a multiple of 4), but should be regarded as uninterpreted data.
`N' = 4 * Len.`
In the first word (four bytes) of `ID`, only 18 bits are significant, the rest should be 0. In `Creation`, only 2 bits are significant, the rest should be 0.
- `NEW_REFERENCE_EXT`
-
was introduced with distribution version 4. In
version 4, `N'` should be at most 12.
See [`REFERENCE_EXT`]).
(see [`NEW_REFERENCE_EXT`])
[`REFERENCE_EXT`]: erlang.org/doc/apps/erts/erl_ext_dist.html#REFERENCE_EXT [`NEW_REFERENCE_EXT`]: erlang.org/doc/apps/erts/erl_ext_dist.html#NEW_REFERENCE_EXT
Constants
- UINT16BE
- UINT32BE
- UINT8
Public Class Methods
# File lib/erlang/etf/new_reference.rb, line 39 def [](term, node = nil, creation = nil, ids = nil) return new(term, node, creation, ids) end
# File lib/erlang/etf/new_reference.rb, line 43 def erlang_load(buffer) length, = buffer.read(2).unpack(UINT16BE) node = Erlang::ETF.read_term(buffer) creation, *ids = buffer.read(1 + (4 * length)).unpack("#{UINT8}#{UINT32BE}#{length}") term = Erlang::Reference[Erlang.from(node), Erlang.from(creation), Erlang.from(ids)] return new(term, node, creation, ids) end
# File lib/erlang/etf/new_reference.rb, line 52 def initialize(term, node = nil, creation = nil, ids = nil) raise ArgumentError, "term must be of type Erlang::Reference" if not term.kind_of?(Erlang::Reference) or not term.new_reference? @term = term @node = node @creation = creation @ids = ids end
Public Instance Methods
# File lib/erlang/etf/new_reference.rb, line 60 def erlang_dump(buffer = ::String.new.force_encoding(BINARY_ENCODING)) buffer << NEW_REFERENCE_EXT ids = @ids || @term.ids length = ids.size buffer << [length].pack(UINT16BE) Erlang::ETF.write_term(@node || @term.node, buffer) buffer << [ @creation || @term.creation, *ids ].pack("#{UINT8}#{UINT32BE}#{length}") return buffer end
Erlang::ETF::Term#inspect
# File lib/erlang/etf/new_reference.rb, line 73 def inspect if @node.nil? and @creation.nil? and @ids.nil? return super else return "#{self.class}[#{@term.inspect}, #{@node.inspect}, #{@creation.inspect}, #{@ids.inspect}]" end end
# File lib/erlang/etf/new_reference.rb, line 81 def pretty_print(pp) state = [@term] state.push(@node, @creation, @ids) if not @node.nil? or not @creation.nil? or not @ids.nil? return pp.group(1, "#{self.class}[", "]") do pp.breakable '' pp.seplist(state) { |obj| obj.pretty_print(pp) } end end