Class: Data::Option::None

Inherits:
Object
  • Object
show all
Includes:
Comparable, Singleton
Defined in:
lib/data/option/none.rb

Defined Under Namespace

Classes: UnwrapError

Instance Method Summary collapse

Instance Method Details

#<=>(other) ⇒ Object 



16
 
# File 'lib/data/option/none.rb', line 16

def <=>(other) = other.is_a?(Some) ? -1 : 0

#and(_other) ⇒ Object 



28
 
# File 'lib/data/option/none.rb', line 28

def and(_other) = self

#and_then ⇒ Object 



29
 
# File 'lib/data/option/none.rb', line 29

def and_then = self

#each ⇒ Object Also known as: map, filter, flat_map, flatten 



34
 
# File 'lib/data/option/none.rb', line 34

def each = self

#expect(message) ⇒ Object

Raises:



26
 
# File 'lib/data/option/none.rb', line 26

def expect(message) = raise UnwrapError, message

#inspect ⇒ Object Also known as: to_s 



49
 
# File 'lib/data/option/none.rb', line 49

def inspect = 'None'

#map_or_else(default) ⇒ Object 



41
 
# File 'lib/data/option/none.rb', line 41

def map_or_else(default) = default.call

#none? ⇒ Boolean Also known as: none_or?

Returns:

  • (Boolean) 


44
 
# File 'lib/data/option/none.rb', line 44

def none? = true

#or(other) ⇒ Object Also known as: xor 



30
 
# File 'lib/data/option/none.rb', line 30

def or(other) = other.is_a?(Some) ? other : self

#pretty_print(pp) ⇒ Object 



52
 
# File 'lib/data/option/none.rb', line 52

def pretty_print(pp) = pp.text(inspect)

#some? ⇒ Boolean Also known as: some_and?

Returns:

  • (Boolean) 


43
 
# File 'lib/data/option/none.rb', line 43

def some? = false

#unwrap ⇒ Object

Raises:



22
 
# File 'lib/data/option/none.rb', line 22

def unwrap = raise UnwrapError

#unwrap_or(default) ⇒ Object Also known as: map_or 



25
 
# File 'lib/data/option/none.rb', line 25

def unwrap_or(default) = default

#unwrap_or_else ⇒ Object Also known as: or_else 



23
 
# File 'lib/data/option/none.rb', line 23

def unwrap_or_else = yield