94 lines
2.0 KiB
Ruby
94 lines
2.0 KiB
Ruby
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require 'concurrent/synchronization/abstract_struct'
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require 'concurrent/synchronization'
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module Concurrent
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# A thread-safe, immutable variation of Ruby's standard `Struct`.
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#
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# @see http://ruby-doc.org/core-2.2.0/Struct.html Ruby standard library `Struct`
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module ImmutableStruct
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include Synchronization::AbstractStruct
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def self.included(base)
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base.safe_initialization!
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end
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# @!macro struct_values
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def values
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ns_values
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end
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alias_method :to_a, :values
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# @!macro struct_values_at
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def values_at(*indexes)
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ns_values_at(indexes)
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end
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# @!macro struct_inspect
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def inspect
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ns_inspect
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end
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alias_method :to_s, :inspect
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# @!macro struct_merge
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def merge(other, &block)
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ns_merge(other, &block)
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end
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# @!macro struct_to_h
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def to_h
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ns_to_h
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end
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# @!macro struct_get
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def [](member)
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ns_get(member)
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end
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# @!macro struct_equality
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def ==(other)
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ns_equality(other)
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end
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# @!macro struct_each
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def each(&block)
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return enum_for(:each) unless block_given?
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ns_each(&block)
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end
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# @!macro struct_each_pair
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def each_pair(&block)
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return enum_for(:each_pair) unless block_given?
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ns_each_pair(&block)
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end
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# @!macro struct_select
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def select(&block)
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return enum_for(:select) unless block_given?
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ns_select(&block)
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end
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# @!macro struct_new
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def self.new(*args, &block)
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clazz_name = nil
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if args.length == 0
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raise ArgumentError.new('wrong number of arguments (0 for 1+)')
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elsif args.length > 0 && args.first.is_a?(String)
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clazz_name = args.shift
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end
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FACTORY.define_struct(clazz_name, args, &block)
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end
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FACTORY = Class.new(Synchronization::LockableObject) do
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def define_struct(name, members, &block)
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synchronize do
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Synchronization::AbstractStruct.define_struct_class(ImmutableStruct, Synchronization::Object, name, members, &block)
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end
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end
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end.new
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private_constant :FACTORY
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end
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end
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