mixins/pair_updatable_container

module PairUpdatableContainer

A mixin for containers that have key/value pairs. This mixin defines a number of useful functions for containers that are pair-enumerable, have a []= method for storing elements, a [] method for retrieving elements, and a clear() method for removing all elements.

TODO: Should indexes() be in a separate container, since it does not require write-access to the container?

Public Methods

invert

Create an inverted container, using the container's keys as values, and the container's values as keys.

Returns: an inverted version of the container.

update(other)

Update a container with another pair-updatable container.

Returns: self.

replace(other)

Replace the contents of a container with another pair-updatable container.

Returns: self.

Requires