Class: Erlang::ETF::Export

Inherits:
Object
  • Object
show all
Includes:
Term
Defined in:
lib/erlang/etf/export.rb

Overview

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113 Module Function Arity

This term is the encoding for external funs: fun M:F/A.

Module and Function are atoms (encoded using ATOM_EXT, SMALL_ATOM_EXT or ATOM_CACHE_REF).

Arity is an integer encoded using SMALL_INTEGER_EXT.

(see EXPORT_EXT)

Constant Summary

Constants included from Term

Term::ATOM_CACHE_REF, Term::ATOM_EXT, Term::ATOM_INTERNAL_REF2, Term::ATOM_INTERNAL_REF3, Term::ATOM_UTF8_EXT, Term::BINARY_ENCODING, Term::BINARY_EXT, Term::BINARY_INTERNAL_REF, Term::BIT_BINARY_EXT, Term::BIT_BINARY_INTERNAL_REF, Term::COMPRESSED, Term::DIST_HEADER, Term::DOUBLE, Term::DOUBLEBE, Term::DOUBLELE, Term::ERLANG_MAGIC_BYTE, Term::EXPORT_EXT, Term::FLOAT_EXT, Term::FUN_EXT, Term::INT128, Term::INT128BE, Term::INT128LE, Term::INT16, Term::INT16BE, Term::INT16LE, Term::INT32, Term::INT32BE, Term::INT32LE, Term::INT64, Term::INT64BE, Term::INT64LE, Term::INT8, Term::INTEGER_EXT, Term::LARGE_BIG_EXT, Term::LARGE_TUPLE_EXT, Term::LIST_EXT, Term::MAP_EXT, Term::NEW_FLOAT_EXT, Term::NEW_FUN_EXT, Term::NEW_REFERENCE_EXT, Term::NIL_EXT, Term::PID_EXT, Term::PORT_EXT, Term::REFERENCE_EXT, Term::SINGLE, Term::SINGLEBE, Term::SINGLELE, Term::SMALL_ATOM_EXT, Term::SMALL_ATOM_UTF8_EXT, Term::SMALL_BIG_EXT, Term::SMALL_INTEGER_EXT, Term::SMALL_TUPLE_EXT, Term::STRING_EXT, Term::UINT128, Term::UINT128BE, Term::UINT128LE, Term::UINT16, Term::UINT16BE, Term::UINT16LE, Term::UINT32, Term::UINT32BE, Term::UINT32LE, Term::UINT64, Term::UINT64BE, Term::UINT64LE, Term::UINT8

Class Method Summary collapse

Instance Method Summary collapse

Methods included from Term

#<=>, binary_encoding, #eql?, #erlang_external_type, #hash, included, #to_erlang_etf

Constructor Details

#initialize(term, mod = nil, function = nil, arity = nil) ⇒ Export

Returns a new instance of Export.

Raises:

  • (ArgumentError) 


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# File 'lib/erlang/etf/export.rb', line 41

def initialize(term, mod = nil, function = nil, arity = nil)
  raise ArgumentError, "term must be of type Erlang::Export" if not term.kind_of?(Erlang::Export)
  @term     = term
  @mod      = mod
  @function = function
  @arity    = arity
end

Class Method Details

.[](term, mod = nil, function = nil, arity = nil) ⇒ Object 



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# File 'lib/erlang/etf/export.rb', line 28

def [](term, mod = nil, function = nil, arity = nil)
  return new(term, mod, function, arity)
end

.erlang_load(buffer) ⇒ Object 



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# File 'lib/erlang/etf/export.rb', line 32

def erlang_load(buffer)
  mod      = Erlang::ETF.read_term(buffer)
  function = Erlang::ETF.read_term(buffer)
  arity    = Erlang::ETF.read_term(buffer)
  term     = Erlang::Export[Erlang.from(mod), Erlang.from(function), Erlang.from(arity)]
  return new(term, mod, function, arity)
end

Instance Method Details

#erlang_dump(buffer = ::String.new.force_encoding(BINARY_ENCODING)) ⇒ Object 



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# File 'lib/erlang/etf/export.rb', line 49

def erlang_dump(buffer = ::String.new.force_encoding(BINARY_ENCODING))
  buffer << EXPORT_EXT
  Erlang::ETF.write_term(@mod      || @term.mod,      buffer)
  Erlang::ETF.write_term(@function || @term.function, buffer)
  Erlang::ETF.write_term(@arity    || @term.arity,    buffer)
  return buffer
end

#inspect ⇒ Object 



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# File 'lib/erlang/etf/export.rb', line 57

def inspect
  if @mod.nil? and @function.nil? and @arity.nil?
    return super
  else
    return "#{self.class}[#{@term.inspect}, #{@mod.inspect}, #{@function.inspect}, #{@arity.inspect}]"
  end
end

#pretty_print(pp) ⇒ Object 



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# File 'lib/erlang/etf/export.rb', line 65

def pretty_print(pp)
  state = [@term]
  state.push(@mod, @function, @arity) if not @mod.nil? or not @function.nil? or not @arity.nil?
  return pp.group(1, "#{self.class}[", "]") do
    pp.breakable ''
    pp.seplist(state) { |obj| obj.pretty_print(pp) }
  end
end