Crate cl_structures 

Universally useful structures

• Span: Stores a start and end position in a named stream
• DroplessInterner & StringInterner: Provides stable, unique allocations
• Stack: Contiguous collections with constant capacity
• IndexMap: A map from map indices to values

Modules

dropless_arena

A DroplessArena can hold any combination of types as long as they don’t implement Drop.

index_map

Trivially-copyable, easily comparable typed indices, and an IndexMap to contain them.

intern

Interners for strings and non-Drop types.

span

Span: Stores the start and end position of a notable AST node

stack

A contiguous collection with constant capacity.

tree

An insert-only unordered tree, backed by a Vec

typed_arena

A TypedArena can hold many instances of a single type, and will properly Drop them.

Macros

make_index

Creates newtype indices over usize for use as IndexMap keys.