Drew's Foundation bindings for Rust

This library binds (some subset of) Apple Foundation to Rust. It may be compared to objc-foundation and cocoa-foundation.

Part of the objr expanded universe, distinctive features of foundationr:

Zero-cost abstractions. Calling this library should perform identically to calling Foundation from Swift/ObjC applications.
- Most of the magic happens in objr or blocksr which provide cutting-edge high-performance primitives which are used here extensively.
Fast enumeration. This avoids the need to use the ObjC runtime to do something like enumerate many objects.
Safe APIs. Where possible APIs are designed with safe abstractions to provide familiar guarantees to Rust developers
Low-level. These bindings assume familiarity with Foundation APIs and are not documented separately.
Modular. Foundation is a big library; individual features are gated with feature flags
Free for noncommercial or "small commercial" use.

Table of features

The scope of this project is to implement "all of foundation", however, in practice, I mostly have time to implement APIs I actually use in other projects.

The following cargo features are currently supported, and provide at least some APIs on each type:

Core types

nsstring
nsdata
nsdictionary
nsvalue
nsrange
nsdate
nsnenumerator
nsarray
nsattributedstring

Runtime

nscopying

System

nsthread
nsnotification
nsrunloop

HTTP and URLs

nsurl
nsurlresponse
nsurlrequest
nsurlsession

Other

all - enables all other features