Class: Ruby::Rego::UndefinedValue

Inherits:
Value
  • Object
show all
Defined in:
lib/ruby/rego/value.rb

Overview

Represents an undefined value.

Constant Summary collapse

TYPE_NAME = 
"undefined"
UNDEFINED = 
Object.new.freeze

Instance Attribute Summary

Attributes inherited from Value

#value

Instance Method Summary collapse

Methods inherited from Value

#==, #fetch_reference, from_ruby, #hash, #type_name, #undefined?

Constructor Details

#initialize ⇒ UndefinedValue

Create an undefined value marker.



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# File 'lib/ruby/rego/value.rb', line 205

def initialize
  super(UNDEFINED)
end

Instance Method Details

#object_key ⇒ UndefinedValue

Use the instance itself as an object key.

Returns:



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# File 'lib/ruby/rego/value.rb', line 226

def object_key
  self
end

#to_ruby ⇒ Object

Return the singleton undefined marker.

Returns:

  • (Object) 


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# File 'lib/ruby/rego/value.rb', line 219

def to_ruby
  UNDEFINED
end

#truthy? ⇒ Boolean

Undefined is falsy.

Returns:

  • (Boolean) 


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# File 'lib/ruby/rego/value.rb', line 212

def truthy?
  false
end