status: experimental / pre-release / guaranteed buggy

The Rust Playground for MacOS is a standalone native mac application that allows quickly editing and testing rust snippets.

You can download a disk image of a recent build on the releases page.

The playground requires rustup, and allows code to be run with any installed toolchain. note: Rustup must currently be in the default directory, $HOME/.rustup.

• clone this repository
• cd in to the RustPlayground directory
• run xcodebuild from the command line
• copy build/Release/Rust Playground.app to your Applications directory

This project is based on a fork of the xi-editor core. It is intended largely as an experimental offshoot of xi; a narrowly scoped editor frontend that can be used to experiment with various design decisions.

Document state is handled in rust; the swift frontend interfaces with the rust code via FFI.

• syntax highlighting
• font selection
• auto-indent
• comment toggling
• line breaking
• extern crates (with a hacky custom syntax for declaring imports)
• use any installed toolchains

• Performance is not great; it is expected that documents are only ever a few hundred lines.
• Drawing is hacky. We may draw ghost selections.

• export to gist / web playground
• export to new cargo project?
• rustfmt / clippy
• multiple documents, saving snippets?
• ASM / IR output

• integrate with cargo-instruments
• benchmarking
• inline compiler warnings
• autocomplete
• RLS support
• Rust Analyzer support

to the xi-editor contributors, to Jake Goulding for the excellent play.rust-lang.org implementation, and to the Rust community at large.