Class: TypedCache::Nothing

Inherits:

Object

• Object
• TypedCache::Nothing

Defined in:

lib/typed_cache/maybe.rb

Instance Method Summary

• #==(other) ⇒ Object
• #bind ⇒ Object (also: #flat_map)

  : [T] () { (V) -> maybe } -> maybe.

• #hash ⇒ Object
• #inspect ⇒ Object
• #map ⇒ Object

  : [T] () { (V) -> T } -> maybe.

• #nothing? ⇒ Boolean

  : -> TrueClass.

• #some? ⇒ Boolean

  : -> FalseClass.

• #to_s ⇒ Object
• #value_or(default) ⇒ Object

  : [T] (T) -> T.

• #value_or_raise! ⇒ Object

  : -> V.

Instance Method Details

#==(other) ⇒ Object

# File 'lib/typed_cache/maybe.rb', line 125

def ==(other)
  other.is_a?(Nothing)
end

#bind ⇒ Object Also known as: flat_map

: [T] () { (V) -> maybe } -> maybe

# File 'lib/typed_cache/maybe.rb', line 113

def bind(&) = self

#hash ⇒ Object

# File 'lib/typed_cache/maybe.rb', line 130

def hash = [Nothing].hash

#inspect ⇒ Object

# File 'lib/typed_cache/maybe.rb', line 136

def inspect = to_s

#map ⇒ Object

: [T] () { (V) -> T } -> maybe

# File 'lib/typed_cache/maybe.rb', line 109

def map(&) = self

#nothing? ⇒ Boolean

: -> TrueClass

Returns:

• (Boolean)

# File 'lib/typed_cache/maybe.rb', line 105

def nothing? = true

#some? ⇒ Boolean

: -> FalseClass

Returns:

• (Boolean)

# File 'lib/typed_cache/maybe.rb', line 102

def some? = false
# @rbs override
#: -> TrueClass

#to_s ⇒ Object

# File 'lib/typed_cache/maybe.rb', line 133

def to_s = 'Nothing'

#value_or(default) ⇒ Object

: [T] (T) -> T

# File 'lib/typed_cache/maybe.rb', line 118

def value_or(default) = default

#value_or_raise! ⇒ Object

: -> V

Raises:

• (TypedCache::TypeError)

# File 'lib/typed_cache/maybe.rb', line 122

def value_or_raise! = raise TypedCache::TypeError, 'Nothing has no value'