Method: Weak::Map::WeakKeys#keys

Defined in:

lib/weak/map/weak_keys.rb

#keys ⇒ Array

Note:

In contrast to a Hash, Weak::Maps do not necessarily retain insertion order.

Returns an Array containing all keys of the map for which we have a valid value. Keys with garbage-collected values are excluded.

Returns:

• (Array) —

  an Array containing all keys of the map for which we have a valid value. Keys with garbage-collected values are excluded.

See Also:

• Weak::Map#values

# File 'lib/weak/map/weak_keys.rb', line 111

def keys
  @map.keys.delete_if { |key| missing?(@map[key]) }
end