Module: Erlang
- Defined in:
- lib/erlang/map.rb,
lib/erlang/nil.rb,
lib/erlang/pid.rb,
lib/erlang/atom.rb,
lib/erlang/cons.rb,
lib/erlang/list.rb,
lib/erlang/port.rb,
lib/erlang/term.rb,
lib/erlang/trie.rb,
lib/erlang/error.rb,
lib/erlang/float.rb,
lib/erlang/terms.rb,
lib/erlang/tuple.rb,
lib/erlang/binary.rb,
lib/erlang/export.rb,
lib/erlang/string.rb,
lib/erlang/function.rb,
lib/erlang/bitstring.rb,
lib/erlang/immutable.rb,
lib/erlang/reference.rb,
lib/erlang/undefined.rb,
lib/erlang/associable.rb,
lib/erlang/enumerable.rb,
lib/erlang/terms/version.rb
Defined Under Namespace
Modules: Associable, Enumerable, List
Classes: Atom, Binary, Bitstring, Export, Float, Function, ImproperListError, Map, Pid, Port, ProperListError, Reference, String, Tuple
Constant Summary
collapse
- Nil =
A list without any elements. This is a singleton, since all empty lists are equivalent.
EmptyList.instance
- PositiveInfinity =
(1.0 / 0.0).freeze
- NegativeInfinity =
-PositiveInfinity
Class Method Summary
collapse
Class Method Details
.compare(a, b) ⇒ Object
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# File 'lib/erlang/terms.rb', line 55
def self.compare(a, b)
a = Erlang.from(a)
b = Erlang.from(b)
t = type(a)
c = Erlang::Terms::TERM_ORDER[t] <=> Erlang::Terms::TERM_ORDER[type(b)]
return c if c != 0
case t
when :atom
return Erlang::Atom.compare(a, b)
when :bitstring
return Erlang::Bitstring.compare(a, b)
when :fun
return Erlang::Function.compare(a, b)
when :list
return Erlang::List.compare(a, b)
when :map
return Erlang::Map.compare(a, b)
when :nil
return 0
when :number
if is_float(a) or is_float(b)
af = a
if not is_float(a)
begin
af = Erlang::Float[a]
rescue ArgumentError
af = a
end
end
bf = b
if not is_float(b)
begin
bf = Erlang::Float[b]
rescue ArgumentError
bf = b
end
end
return Erlang::Float.compare(af, bf) if af.kind_of?(Erlang::Float) and bf.kind_of?(Erlang::Float)
return af.data <=> bf if af.kind_of?(Erlang::Float) and not bf.kind_of?(Erlang::Float)
afbfcmp = bf.data <=> af
return -afbfcmp
end
return a <=> b
when :pid
return Erlang::Pid.compare(a, b)
when :port
return Erlang::Port.compare(a, b)
when :reference
return Erlang::Reference.compare(a, b)
when :tuple
return Erlang::Tuple.compare(a, b)
else
raise NotImplementedError
end
end
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.from(term) ⇒ Object
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# File 'lib/erlang/terms.rb', line 111
def self.from(term)
return term.to_erlang if term.respond_to?(:to_erlang)
return term if is_integer(term)
return term if term.kind_of?(Erlang::Float)
return Erlang::Float[term] if is_float(term)
return term if term.kind_of?(Erlang::Atom)
return Erlang::Atom[term] if term.kind_of?(::Symbol)
return Erlang::Atom[term] if term.kind_of?(::FalseClass)
return Erlang::Atom[term] if term.kind_of?(::NilClass)
return Erlang::Atom[term] if term.kind_of?(::TrueClass)
return term if is_reference(term)
return term if is_function(term)
return term if is_port(term)
return term if is_pid(term)
return term if is_tuple(term)
return term if term.kind_of?(Erlang::Map)
return Erlang::Map[term] if term.kind_of?(::Hash)
return term if term.equal?(Erlang::Nil)
return Erlang::Nil if is_list(term) and term.empty?
return term if term.kind_of?(Erlang::List)
return term if term.kind_of?(Erlang::String)
return Erlang::List.from_enum(term) if term.kind_of?(::Array)
return term if term.kind_of?(Erlang::Binary)
return term if term.kind_of?(Erlang::Bitstring)
return Erlang::Binary[term] if term.kind_of?(::String)
raise ArgumentError, "unable to convert ruby object of class #{term.class} to erlang term"
end
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.inspect(term = Erlang::Undefined, raw: false) ⇒ Object
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# File 'lib/erlang/terms.rb', line 147
def self.inspect(term = Erlang::Undefined, raw: false)
return super() if Erlang::Undefined.equal?(term)
term = from(term)
return term.erlang_inspect(raw) if term.respond_to?(:erlang_inspect)
return term.inspect if is_any(term)
raise NotImplementedError
end
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.iolist_to_binary(iolist) ⇒ Object
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# File 'lib/erlang/terms.rb', line 155
def self.iolist_to_binary(iolist)
return iolist if is_binary(iolist)
return Erlang::Binary.new(iolist) if iolist.is_a?(::String)
return Erlang::Binary.new(iolist.to_s) if iolist.is_a?(::Symbol)
if is_list(iolist)
return Erlang::Binary.new(iolist.flatten.map do |element|
data = nil
if element.is_a?(::Integer) and element <= 255 and element >= -256
element = element + 256 if element < 0
data = element.chr
elsif element.is_a?(::String)
data = element
elsif is_binary(element)
data = element.data
elsif element.is_a?(::Symbol)
data = element.to_s
elsif is_list(element)
data = iolist_to_binary(element).data
else
raise ArgumentError, "unknown element in iolist: #{element.inspect}"
end
next Erlang::Terms.binary_encoding(data)
end.join)
else
raise ArgumentError, "unrecognized iolist: #{iolist.inspect}"
end
end
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.is_any(term) ⇒ Object
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# File 'lib/erlang/terms.rb', line 183
def self.is_any(term)
return true if is_atom(term)
return true if is_bitstring(term)
return true if is_boolean(term)
return true if is_float(term)
return true if is_function(term)
return true if is_integer(term)
return true if is_list(term)
return true if is_map(term)
return true if is_number(term)
return true if is_pid(term)
return true if is_port(term)
return true if is_reference(term)
return true if is_tuple(term)
return false
end
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.is_atom(term) ⇒ Object
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# File 'lib/erlang/terms.rb', line 200
def self.is_atom(term)
return true if term.kind_of?(::Symbol)
return true if term.kind_of?(::FalseClass)
return true if term.kind_of?(::NilClass)
return true if term.kind_of?(::TrueClass)
return true if term.kind_of?(Erlang::Atom)
return false
end
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.is_binary(term) ⇒ Object
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# File 'lib/erlang/terms.rb', line 209
def self.is_binary(term)
return true if term.kind_of?(::String)
return true if term.kind_of?(Erlang::Binary)
return false
end
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.is_bitstring(term) ⇒ Object
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# File 'lib/erlang/terms.rb', line 215
def self.is_bitstring(term)
return true if is_binary(term)
return true if term.kind_of?(Erlang::Bitstring)
return false
end
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.is_boolean(term) ⇒ Object
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# File 'lib/erlang/terms.rb', line 221
def self.is_boolean(term)
return true if term.kind_of?(::FalseClass)
return true if term.kind_of?(::TrueClass)
return true if term == :true
return true if term == :false
return false
end
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.is_float(term) ⇒ Object
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# File 'lib/erlang/terms.rb', line 229
def self.is_float(term)
return true if term.kind_of?(::BigDecimal)
return true if term.kind_of?(::Float)
return true if term.kind_of?(::Rational)
return true if term.kind_of?(Erlang::Float)
return false
end
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.is_function(term, arity = nil) ⇒ Object
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# File 'lib/erlang/terms.rb', line 237
def self.is_function(term, arity = nil)
if arity == nil
return true if term.kind_of?(Erlang::Export)
return true if term.kind_of?(Erlang::Function)
else
return true if is_function(term) and term.arity == arity
end
return false
end
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.is_integer(term) ⇒ Object
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# File 'lib/erlang/terms.rb', line 247
def self.is_integer(term)
return true if term.kind_of?(::Integer)
return false
end
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.is_list(term) ⇒ Object
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# File 'lib/erlang/terms.rb', line 252
def self.is_list(term)
return true if term.kind_of?(Erlang::List)
return true if term.kind_of?(Erlang::String)
return true if term.kind_of?(::Array)
return true if term.equal?(Erlang::Nil)
return false
end
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.is_map(term) ⇒ Object
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# File 'lib/erlang/terms.rb', line 260
def self.is_map(term)
return true if term.kind_of?(Erlang::Map)
return true if term.kind_of?(::Hash)
return false
end
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.is_number(term) ⇒ Object
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# File 'lib/erlang/terms.rb', line 266
def self.is_number(term)
return true if is_float(term) or is_integer(term)
return false
end
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.is_pid(term) ⇒ Object
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# File 'lib/erlang/terms.rb', line 271
def self.is_pid(term)
return true if term.kind_of?(Erlang::Pid)
return false
end
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.is_port(term) ⇒ Object
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# File 'lib/erlang/terms.rb', line 276
def self.is_port(term)
return true if term.kind_of?(Erlang::Port)
return false
end
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.is_reference(term) ⇒ Object
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# File 'lib/erlang/terms.rb', line 281
def self.is_reference(term)
return true if term.kind_of?(Erlang::Reference)
return false
end
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.is_tuple(term) ⇒ Object
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# File 'lib/erlang/terms.rb', line 286
def self.is_tuple(term)
return true if term.kind_of?(Erlang::Tuple)
return false
end
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.type(term) ⇒ Object
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# File 'lib/erlang/terms.rb', line 291
def self.type(term)
return :atom if is_atom(term)
return :bitstring if is_bitstring(term)
return :fun if is_function(term)
return :list if is_list(term) and not term.empty?
return :map if is_map(term)
return :nil if is_list(term) and term.empty?
return :number if is_number(term)
return :pid if is_pid(term)
return :port if is_port(term)
return :reference if is_reference(term)
return :tuple if is_tuple(term)
raise NotImplementedError
end
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