Class: OrElse::Just

Inherits:
Maybe show all
Defined in:
lib/or_else/just.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(val) ⇒ Just

Returns a new instance of Just.



6
7
8
 
# File 'lib/or_else/just.rb', line 6

def initialize(val)
  @value = val
end

Instance Attribute Details

#value ⇒ Object (readonly)

Returns the value of attribute value.



4
5
6
 
# File 'lib/or_else/just.rb', line 4

def value
  @value
end

Instance Method Details

#empty? ⇒ Boolean

Returns:

  • (Boolean) 


18
19
20
 
# File 'lib/or_else/just.rb', line 18

def empty?
  false
end

#exists? ⇒ Boolean

Returns:

  • (Boolean) 


22
23
24
 
# File 'lib/or_else/just.rb', line 22

def exists?
  !empty?
end

#flat_map {|value| ... } ⇒ Object

Yields:



14
15
16
 
# File 'lib/or_else/just.rb', line 14

def flat_map
  yield value
end

#map ⇒ Object 



10
11
12
 
# File 'lib/or_else/just.rb', line 10

def map
  Maybe(yield value)
end

#or_else ⇒ Object 



26
27
28
 
# File 'lib/or_else/just.rb', line 26

def or_else
  value
end