Class: Steep::AST::Types::Nil

Inherits:
Object
  • Object
show all
Extended by:
SharedInstance
Includes:
Helper::NoChild, Helper::NoFreeVariables
Defined in:
lib/steep/ast/types/nil.rb

Instance Method Summary collapse

Methods included from SharedInstance

instance

Methods included from Helper::NoChild

#each_child, #map_type

Methods included from Helper::NoFreeVariables

#free_variables

Instance Method Details

#==(other) ⇒ Object Also known as: eql? 



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# File 'lib/steep/ast/types/nil.rb', line 7

def ==(other)
  other.is_a?(Nil)
end

#back_type ⇒ Object 



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# File 'lib/steep/ast/types/nil.rb', line 33

def back_type
  Name::Instance.new(name: Builtin::NilClass.module_name,
                     args: [])
end

#hash ⇒ Object 



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# File 'lib/steep/ast/types/nil.rb', line 11

def hash
  self.class.hash
end

#level ⇒ Object 



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# File 'lib/steep/ast/types/nil.rb', line 29

def level
  [0]
end

#subst(s) ⇒ Object 



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# File 'lib/steep/ast/types/nil.rb', line 17

def subst(s)
  self
end

#to_s ⇒ Object 



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# File 'lib/steep/ast/types/nil.rb', line 21

def to_s
  "nil"
end