Skip to content
| Marketplace
Sign in
Visual Studio Code>Other>Jayret Interactive Editor for VSCodeNew to Visual Studio Code? Get it now.
Jayret Interactive Editor for VSCode

Jayret Interactive Editor for VSCode

Artem Pelenitsyn

|
1 install
| (0) | Free
An interactive VSCode editor for Jayret — a hard fork of Pyret with a Java-flavored surface syntax. Embeds a code.jayret.org build (with the Jayret translator) inside a webview pane and gives .jrt files a CodeMirror editor + REPL.
Installation
Launch VS Code Quick Open (Ctrl+P), paste the following command, and press enter.
Copied to clipboard
More Info

jayret-parley-vscode

Notice. This is an independent derivative of pyret-parley-vscode, originally by Joe Politz (with grammar/language-configuration by Seth Poulsen), used under the Apache License 2.0. It is not affiliated with, endorsed by, or sponsored by the Pyret project, Brown PLT, or the original authors. See NOTICE for full attribution.

An interactive Visual Studio Code editor for Jayret, modeled on jpolitz/pyret-parley-vscode and powered by a Jayret-flavored code.pyret.org build embedded into a VSCode webview.

Opens .jrt files in a custom editor that runs the full Jayret compiler + runtime inside a webview pane, with an interactive REPL on the side.

Architecture

jayret-parley-vscode is a fork of jpolitz/pyret-parley-vscode. The substantive differences:

  • Source extension is .jrt (Jayret), not .arr (Pyret).
  • The embedded compiler bundle comes from jayret-lang/code.jayret.org — a fork of code.pyret.org whose pyret-lang dependency is pinned to our jayret-lang/jayret-lang fork. That bundle includes the Jayret translator, so loading a .jrt source in the webview routes through parse-java rather than parse-pyret.
  • VSCode command IDs and configuration keys are namespaced jayret-parley.*.

Building

You need a built copy of code.jayret.org on disk. The expected sibling layout:

~/Dev/pyret/
    code.jayret.org/        # cloned + `make web-local`
    jayret-parley-vscode/   # this repo, with build/ symlinked to ../code.jayret.org/build

Set up the symlink and compile:

ln -s ../code.jayret.org/build build
npm install
npm run compile

Webpack copies build/web into dist/web/build/web and bundles the TypeScript extension code. Output appears in dist/web/extension.js.

To package a .vsix:

npx @vscode/vsce package

To test in a browser-based VSCode:

npx vscode-test-web --browserType=chromium --extensionDevelopmentPath . ./sampleFiles/

Settings

  • jayret-parley.defaultContext — starter context (e.g. starter2024).
  • jayret-parley.urlFileMode — how to resolve url-file() imports.

Issues

Jayret-language issues belong in jayret-lang/jayret-lang. Extension-specific issues go to jayret-lang/jayret-parley-vscode.

License

Apache-2.0. Upstream attribution: pyret-parley-vscode is by Joe Politz, with grammar/language-configuration originally by Seth Poulsen.

  • Contact us
  • Jobs
  • Privacy
  • Manage cookies
  • Terms of use
  • Trademarks
© 2026 Microsoft