Stand up basic functioning TCP-based Ludus Repl

.gitignore

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+# Based on https://raw.githubusercontent.com/github/gitignore/main/Node.gitignore
+
+.*.bun-build
+.lrepl
+
+# Logs
+
+logs
+_.log
+npm-debug.log_
+yarn-debug.log*
+yarn-error.log*
+lerna-debug.log*
+.pnpm-debug.log*
+
+# Caches 
+
+.cache
+
+# Diagnostic reports (https://nodejs.org/api/report.html)
+
+report.[0-9]_.[0-9]_.[0-9]_.[0-9]_.json
+
+# Runtime data
+
+pids
+_.pid
+_.seed
+*.pid.lock
+
+# Directory for instrumented libs generated by jscoverage/JSCover
+
+lib-cov
+
+# Coverage directory used by tools like istanbul
+
+coverage
+*.lcov
+
+# nyc test coverage
+
+.nyc_output
+
+# Grunt intermediate storage (https://gruntjs.com/creating-plugins#storing-task-files)
+
+.grunt
+
+# Bower dependency directory (https://bower.io/)
+
+bower_components
+
+# node-waf configuration
+
+.lock-wscript
+
+# Compiled binary addons (https://nodejs.org/api/addons.html)
+
+build/Release
+
+# Dependency directories
+
+node_modules/
+jspm_packages/
+
+# Snowpack dependency directory (https://snowpack.dev/)
+
+web_modules/
+
+# TypeScript cache
+
+*.tsbuildinfo
+
+# Optional npm cache directory
+
+.npm
+
+# Optional eslint cache
+
+.eslintcache
+
+# Optional stylelint cache
+
+.stylelintcache
+
+# Microbundle cache
+
+.rpt2_cache/
+.rts2_cache_cjs/
+.rts2_cache_es/
+.rts2_cache_umd/
+
+# Optional REPL history
+
+.node_repl_history
+
+# Output of 'npm pack'
+
+*.tgz
+
+# Yarn Integrity file
+
+.yarn-integrity
+
+# dotenv environment variable files
+
+.env
+.env.development.local
+.env.test.local
+.env.production.local
+.env.local
+
+# parcel-bundler cache (https://parceljs.org/)
+
+.parcel-cache
+
+# Next.js build output
+
+.next
+out
+
+# Nuxt.js build / generate output
+
+.nuxt
+dist
+
+# Gatsby files
+
+# Comment in the public line in if your project uses Gatsby and not Next.js
+
+# https://nextjs.org/blog/next-9-1#public-directory-support
+
+# public
+
+# vuepress build output
+
+.vuepress/dist
+
+# vuepress v2.x temp and cache directory
+
+.temp
+
+# Docusaurus cache and generated files
+
+.docusaurus
+
+# Serverless directories
+
+.serverless/
+
+# FuseBox cache
+
+.fusebox/
+
+# DynamoDB Local files
+
+.dynamodb/
+
+# TernJS port file
+
+.tern-port
+
+# Stores VSCode versions used for testing VSCode extensions
+
+.vscode-test
+
+# yarn v2
+
+.yarn/cache
+.yarn/unplugged
+.yarn/build-state.yml
+.yarn/install-state.gz
+.pnp.*
+
+# IntelliJ based IDEs
+.idea
+
+# Finder (MacOS) folder config
+.DS_Store

.ignore

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+.jj/
+node_modules/

README.md

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+# ludus-repl
+
+To install dependencies:
+
+```bash
+bun install
+```
+
+To run:
+
+```bash
+bun run index.ts
+```
+
+This project was created using `bun init` in bun v1.0.20. [Bun](https://bun.sh) is a fast all-in-one JavaScript runtime.

listener.ts

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+import { run } from "@ludus/ludus-js-pure"
+
+const port = Math.floor((Math.random() * 1000) + 50000)
+
+const repl_info = { port }
+
+const repl_file = Bun.file("./.lrepl")
+
+await Bun.write(repl_file, JSON.stringify(repl_info))
+
+console.log(`Ludus REPL listening on localhost:${port}`)
+
+Bun.listen({
+  hostname: "localhost",
+  port,
+  socket: {
+    data: (socket, data) => {
+      const source = data.toString("utf-8")
+      const result = run(source)
+      const msgs = result.console
+      for (const msg of msgs) {
+        console.log(msg)
+      }
+      if (!result.errors) console.log(result.result)
+      else {
+        console.log("Ludus had some errors:")
+        console.log(result.errors)
+      }
+    },
+    error: (socket, error) => { console.log(error); socket.end() }
+  }
+})
+
+
+

package-lock.json

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+{
+  "name": "ludus-repl",
+  "lockfileVersion": 3,
+  "requires": true,
+  "packages": {
+    "": {
+      "name": "ludus-repl",
+      "dependencies": {
+        "@ludus/ludus-js-pure": "^0.1.0-alpha.8"
+      },
+      "devDependencies": {
+        "@types/bun": "latest"
+      },
+      "peerDependencies": {
+        "typescript": "^5.0.0"
+      }
+    },
+    "node_modules/@ludus/ludus-js-pure": {
+      "version": "0.1.0-alpha.8",
+      "resolved": "https://registry.npmjs.org/@ludus/ludus-js-pure/-/ludus-js-pure-0.1.0-alpha.8.tgz",
+      "integrity": "sha512-r0slrbccrvauaRa8tPZh5hrx5lS9gXyhyI5+cVWyYOqJyHNmh62uMEbi3rNjVSc+FqKdQ8GpiC1ZcrNJP5aWiA=="
+    },
+    "node_modules/@types/bun": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/@types/bun/-/bun-1.0.0.tgz",
+      "integrity": "sha512-TPI/aImv/fSo0SWlt29wq0tWRqQOWsC4FOXYeUK0Ni6tAS+FqJZ2p7QCGY4hmHaHQeE2KhKJ6Qn9k3kvFfXD3Q==",
+      "dev": true,
+      "dependencies": {
+        "bun-types": "1.0.18"
+      }
+    },
+    "node_modules/bun-types": {
+      "version": "1.0.18",
+      "dev": true,
+      "license": "MIT"
+    },
+    "node_modules/typescript": {
+      "version": "5.3.3",
+      "license": "Apache-2.0",
+      "peer": true,
+      "bin": {
+        "tsc": "bin/tsc",
+        "tsserver": "bin/tsserver"
+      },
+      "engines": {
+        "node": ">=14.17"
+      }
+    }
+  }
+}

package.json

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+{
+  "name": "ludus-repl",
+  "module": "index.ts",
+  "type": "module",
+  "devDependencies": {
+    "@types/bun": "latest"
+  },
+  "peerDependencies": {
+    "typescript": "^5.0.0"
+  },
+  "dependencies": {
+    "@ludus/ludus-js-pure": "^0.1.0-alpha.8"
+  }
+}

runner.ts

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+import {run} from "@ludus/ludus-js-pure"
+
+const script = Bun.argv[2]
+const file = Bun.file(script)
+const source = await file.text()
+console.log(`Source to run:
+${source}`)
+
+const result = run(source)
+
+if (!result.errors) console.log(result.result)
+else console.log(result.errors)
+

scratch.ld

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+let foo = 42
+let bar = :thing
+let baz = #{:a 1, :b 2}
+
+doc! (add)
+
+print! ("This is a message from inside Ludus")
+
+[foo, bar, baz]
+
+add (1, 2)

sender.ts

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+const repl_file = Bun.file("./.lrepl")
+const repl_info = await repl_file.json()
+const port = repl_info.port
+
+const socket = await Bun.connect({
+	hostname: "localhost",
+	port,
+	socket: {
+		data: (_, data) => process.exit()
+	}
+})
+
+for await (const input of Bun.stdin.stream()) {
+	const chunk = Buffer.from(input).toString("utf-8")
+	socket.write(chunk)
+	socket.end()
+	process.exit()
+}
+

tsconfig.json

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+{
+  "compilerOptions": {
+    "lib": ["ESNext"],
+    "target": "ESNext",
+    "module": "ESNext",
+    "moduleDetection": "force",
+    "jsx": "react-jsx",
+    "allowJs": true,
+
+    /* Bundler mode */
+    "moduleResolution": "bundler",
+    "allowImportingTsExtensions": true,
+    "verbatimModuleSyntax": true,
+    "noEmit": true,
+
+    /* Linting */
+    "skipLibCheck": true,
+    "strict": true,
+    "noFallthroughCasesInSwitch": true,
+    "forceConsistentCasingInFileNames": true
+  }
+}