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Eiwa

v0.1.0 · by Leo Douglas · added 3 November 2026

Eiwa language support.

Languages
Install in Forge SuperView the source

How to install

With Forge Super installed, the button above opens the app on this extension, where you press Install. Nothing is installed until you do.

You can also open the Extensions panel in the app and search for Eiwa. The extension's id is eiwa.

Don't have Forge Super yet? Download it here.

README

From the extension's repository, written by its authors and not by Mentenaz. See the source.

zed-eiwa

Eiwa language support for Zed.

Features

  • Syntax highlighting for .ei files via tree-sitter-eiwa (a fork of tree-sitter-kotlin extended with Eiwa syntax)
  • ES6-style imports (import { X } from "mod"), test and lib blocks, ternary expressions, union types (Int | Null), bare try/catch
  • Lambda-style for (for (xs) { it * 2 }, incl. map-style for as a value), break with a value, untyped catch (e)
  • Composition type system: type (generics, : Contract + + Skill headers), contract, skill, first-class enum, type-bound companions (type Config { } object { }, object S { } type (...) { })
  • Varargs (Int...), platform targets (object("windows") X, lib("posix") Y), of map pairs (["k" of "v"])
  • Bracket matching and auto-closing pairs
  • Comment toggling (// and /* */)
  • Symbol outline (types, contracts, skills, enums, objects, libs, tests, functions, properties)

Limitations

  • No language server (LSP) yet: no autocomplete, go-to-definition or diagnostics.

Installing (dev extension)

  1. Clone this repository.
  2. In Zed, open the command palette and run zed: install dev extension.
  3. Select this directory (zed-extension/).

Zed will download and compile the tree-sitter grammar on first install.