class Erlang::ETF::String
| 1 | 2 | Len | | — | — | ———- | | 107 | Len | Characters |
String
does NOT have a corresponding Erlang
representation, but is an optimization for sending lists of bytes (integer in the range 0-255) more efficiently over the distribution. Since the Length field is an unsigned 2 byte integer (big endian), implementations must make sure that lists longer than 65535 elements are encoded as [`LIST_EXT`].
(see [`STRING_EXT`])
[`LIST_EXT`]: erlang.org/doc/apps/erts/erl_ext_dist.html#LIST_EXT [`STRING_EXT`]: erlang.org/doc/apps/erts/erl_ext_dist.html#STRING_EXT
Constants
- UINT16BE
Public Class Methods
[](term)
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# File lib/erlang/etf/string.rb, line 27 def [](term) return new(term) end
erlang_load(buffer)
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# File lib/erlang/etf/string.rb, line 31 def erlang_load(buffer) size, = buffer.read(2).unpack(UINT16BE) data = buffer.read(size) return new(Erlang::String[data]) end
new(term)
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# File lib/erlang/etf/string.rb, line 38 def initialize(term) raise ArgumentError, "term must be of type Erlang::String" if not term.kind_of?(Erlang::String) @term = term end
Public Instance Methods
erlang_dump(buffer = ::String.new.force_encoding(BINARY_ENCODING))
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# File lib/erlang/etf/string.rb, line 43 def erlang_dump(buffer = ::String.new.force_encoding(BINARY_ENCODING)) buffer << STRING_EXT buffer << [@term.size].pack(UINT16BE) buffer << Erlang::ETF::Term.binary_encoding(@term.data) return buffer end