Module collections 

Data structures for efficient management of handles and their associated data.

This module provides various data structures that may be used to:

• Manage instances of Handled types, automatically creating handles to them on the fly (HandledVec, HandledHashMap).

• Efficient management of collections of handles (HandleMap, HandleBitSet).

Structs

HandleBitSet

An efficient set of handles.

HandleMap

An efficient implementation of a mapping between handles and arbitrary data.

HandledHashMap

A collection of Handled instances with automatically-generated handles, supporting efficient hash-based instance-to-handle lookup.

HandledVec

A collection of Handled instances with automatically-generated handles, supporting efficient handle-to-instance lookup.