Class: Enum

Inherits:
Object
  • Object
show all
Extended by:
Enumerable
Includes:
LiteralEnums::Transitions
Defined in:
lib/enum.rb

Class Attribute Summary collapse

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Methods included from LiteralEnums::Transitions

#>>, #transitions_to?

Constructor Details

#initialize(name, value) ⇒ Enum

Returns a new instance of Enum.



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# File 'lib/enum.rb', line 9

def initialize(name, value)
  @short_name = name.to_s.gsub(/([a-z])([A-Z])/, '\1_\2').downcase!
  @name = "#{self.class.name}::#{name}"
  @value = value
end

Class Attribute Details

.members ⇒ Object (readonly)

Returns the value of attribute members.



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# File 'lib/enum.rb', line 16

def members
  @members
end

Instance Attribute Details

#name ⇒ Object (readonly) Also known as: inspect

Returns the value of attribute name.



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# File 'lib/enum.rb', line 5

def name
  @name
end

#value ⇒ Object (readonly)

Returns the value of attribute value.



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# File 'lib/enum.rb', line 5

def value
  @value
end

Class Method Details

.cast(value) ⇒ Object 



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# File 'lib/enum.rb', line 43

def cast(value)
  @values[value]
end

.const_missing(name) ⇒ Object 



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# File 'lib/enum.rb', line 32

def const_missing(name)
  return super if frozen?
  new(name)
end

.each(&block) ⇒ Object 



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# File 'lib/enum.rb', line 51

def each(&block)
  @members.each(&block)
end

.inherited(child) ⇒ Object 



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# File 'lib/enum.rb', line 18

def inherited(child)
  TracePoint.new(:end) do |tp|
    if tp.self == child
      tp.self.freeze
      tp.disable
    end
  end.enable

  child.instance_eval do
    @values = {}
    @members = []
  end
end

.method_missing(name, *args, **kwargs, &block) ⇒ Object 



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# File 'lib/enum.rb', line 37

def method_missing(name, *args, **kwargs, &block)
  return super if frozen?
  return super unless name[0] =~ /[A-Z]/
  new(name, *args, **kwargs, &block)
end

.values ⇒ Object 



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# File 'lib/enum.rb', line 47

def values
  @values.keys
end