Class: Rumonade::Left

Inherits:
Either
  • Object
show all
Defined in:
lib/rumonade/either.rb

Overview

The left side of the disjoint union, as opposed to the Right side.

Constant Summary

Constants inherited from Either

Either::DEFAULT_CONCAT

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods inherited from Either

#+, #fold, #left, #left?, #lift, #lift_to_a, #right, #right?, #swap

Constructor Details

#initialize(left_value) ⇒ Left

Returns a new instance of Left.

Parameters:

  • left_value —

    the value to store in a Left, usually representing a failure result



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# File 'lib/rumonade/either.rb', line 98

def initialize(left_value)
  @left_value = left_value
end

Instance Attribute Details

#left_value ⇒ Object (readonly)

Returns the left value

Returns:

  • Returns the left value



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# File 'lib/rumonade/either.rb', line 103

def left_value
  @left_value
end

Instance Method Details

#==(other) ⇒ Boolean

Returns true if other is a Left with an equal left value

Returns:

  • (Boolean) —

    Returns true if other is a Left with an equal left value



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# File 'lib/rumonade/either.rb', line 106

def ==(other)
  other.is_a?(Left) && other.left_value == self.left_value
end

#inspect ⇒ String

Returns a String containing a human-readable representation of this object.

Returns:

  • (String) —

    Returns a String containing a human-readable representation of this object.



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# File 'lib/rumonade/either.rb', line 116

def inspect
  "Left(#{left_value.inspect})"
end

#to_s ⇒ String

Returns a String representation of this object.

Returns:

  • (String) —

    Returns a String representation of this object.



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# File 'lib/rumonade/either.rb', line 111

def to_s
  "Left(#{left_value})"
end