Class: Some

Inherits:
Maybe show all
Defined in:
lib/possibly.rb

Overview

Represents a non-empty value

Instance Method Summary collapse

Methods inherited from Maybe

#inspect, #to_ary

Constructor Details

#initialize(value, inst_method = nil, parent_stack = []) ⇒ Some

Returns a new instance of Some.



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# File 'lib/possibly.rb', line 84

def initialize(value, inst_method = nil, parent_stack = [])
  @value = value
  @inst_method = inst_method || ["Some.new", []]
  @parent_stack = parent_stack
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(method_sym, *args, &block) ⇒ Object 



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# File 'lib/possibly.rb', line 125

def method_missing(method_sym, *args, &block)
  @invocation ||= [method_sym, args, block]
  map { |value| value.send(method_sym, *args, &block) }
end

Instance Method Details

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

rubocop:enable PredicateName



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# File 'lib/possibly.rb', line 116

def ==(other)
  super && get == other.get
end

#===(other) ⇒ Object 



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# File 'lib/possibly.rb', line 121

def ===(other)
  other && other.class == self.class && @value === other.get
end

#get ⇒ Object 



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# File 'lib/possibly.rb', line 90

def get
  @value
end

#is_none? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/possibly.rb', line 111

def is_none?
  false
end

#is_some? ⇒ Boolean

rubocop:disable PredicateName

Returns:

  • (Boolean) 


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# File 'lib/possibly.rb', line 107

def is_some?
  true
end

#or_else ⇒ Object 



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# File 'lib/possibly.rb', line 94

def or_else(*)
  @value
end

#or_nil ⇒ Object 



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# File 'lib/possibly.rb', line 102

def or_nil
  @value
end

#or_raise ⇒ Object 



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# File 'lib/possibly.rb', line 98

def or_raise(*)
  @value
end

#to_s ⇒ Object 



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# File 'lib/possibly.rb', line 130

def to_s
  "Some(#{@value})"
end