✨ Scala

.changeset/tired-comics-hear.md

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+---
+"@ast-grep/lang-scala": patch
+---
+
+Add @ast-grep/lang-scala

packages/scala/README.md

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+# ast-grep napi language for scala
+
+## Installation
+
+In a pnpm project, run:
+
+```bash
+pnpm install @ast-grep/lang-scala
+pnpm install @ast-grep/napi
+# install the tree-sitter-cli if no prebuild is available
+pnpm install @tree-sitter/cli --save-dev
+```
+
+## Usage
+
+```js
+import scala from '@ast-grep/lang-scala'
+import { registerDynamicLanguage, parse } from '@ast-grep/napi'
+
+registerDynamicLanguage({ scala })
+
+const sg = parse('scala', `your code`)
+sg.root().kind()
+```

packages/scala/index.d.ts

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+type LanguageRegistration = {
+  libraryPath: string
+  extensions: string[]
+  languageSymbol?: string
+  metaVarChar?: string
+  expandoChar?: string
+}
+
+declare const registration: LanguageRegistration
+export default registration

packages/scala/index.js

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+const path = require('node:path')
+const libPath = path.join(__dirname, 'parser.so')
+
+module.exports = {
+  libraryPath: libPath,
+  extensions: ['scala', 'sc', 'sbt'],
+  languageSymbol: 'tree_sitter_scala',
+  expandoChar: '$',
+}

packages/scala/nursery.js

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+const { setup } = require('@ast-grep/nursery')
+const assert = require('node:assert')
+const languageRegistration = require('./index')
+
+setup({
+  dirname: __dirname,
+  name: 'scala',
+  treeSitterPackage: 'tree-sitter-scala',
+  languageRegistration,
+  testRunner: parse => {
+    const sg = parse('val a = 0')
+    const root = sg.root()
+    const node = root.find('val $A = 0')
+    assert.equal(node.kind(), 'val_definition')
+  },
+})

packages/scala/package.json

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+{
+  "name": "@ast-grep/lang-scala",
+  "version": "0.0.1",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "build": "tree-sitter build -o parser.so",
+    "source": "node nursery.js source",
+    "prepublishOnly": "node nursery.js source",
+    "postinstall": "node postinstall.js",
+    "test": "node nursery.js test"
+  },
+  "files": [
+    "index.js",
+    "index.d.ts",
+    "type.d.ts",
+    "postinstall.js",
+    "src",
+    "prebuilds"
+  ],
+  "keywords": ["ast-grep"],
+  "author": "",
+  "license": "ISC",
+  "dependencies": {
+    "@ast-grep/setup-lang": "0.0.3"
+  },
+  "peerDependencies": {
+    "tree-sitter-cli": "0.24.6"
+  },
+  "peerDependenciesMeta": {
+    "tree-sitter-cli": {
+      "optional": true
+    }
+  },
+  "devDependencies": {
+    "@ast-grep/nursery": "0.0.2",
+    "tree-sitter-cli": "0.24.6",
+    "tree-sitter-scala": "0.23.4"
+  },
+  "publishConfig": {
+    "access": "public",
+    "registry": "https://registry.npmjs.org/"
+  },
+  "pnpm": {
+    "onlyBuiltDependencies": ["@ast-grep/lang-scala", "tree-sitter-cli"]
+  }
+}

packages/scala/postinstall.js

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+const { postinstall } = require('@ast-grep/setup-lang')
+postinstall({
+  dirname: __dirname,
+})