Show HN: Monocle – bidirectional code generation library

• ts-lite

  0 48 0.0 JavaScript

  Compiled TypeScript. Generates Go, Swift, Kotlin, WASM, Binary

  

  This is neat! I’m curious if you see this being extended for other languages, or the concept being applied in other projects?

  As for similar concepts, several projects by builder.io have some overlap. Most notably Mitosis[1], but I’d be shocked if TS-Lite[2] isn’t using similar techniques. Potentially Qwik[3] as well but I’m not sure, I would have bet that’s using Mitosis but it looks like that’s the other way around.

  1: https://github.com/BuilderIO/mitosis

  2: https://github.com/BuilderIO/ts-lite/tree/main/packages/core

  3: https://github.com/BuilderIO/qwik

• qwik

  51 19,380 9.8 TypeScript

  Instant-loading web apps, without effort

  

  This is neat! I’m curious if you see this being extended for other languages, or the concept being applied in other projects?

  As for similar concepts, several projects by builder.io have some overlap. Most notably Mitosis[1], but I’d be shocked if TS-Lite[2] isn’t using similar techniques. Potentially Qwik[3] as well but I’m not sure, I would have bet that’s using Mitosis but it looks like that’s the other way around.

  1: https://github.com/BuilderIO/mitosis

  2: https://github.com/BuilderIO/ts-lite/tree/main/packages/core

  3: https://github.com/BuilderIO/qwik

• Appwrite

  appwrite.io

  sponsored

  Appwrite - The open-source backend cloud platform. Add Auth, Databases, Functions, and Storage to your product and build any application at any scale while using your preferred coding languages and tools.

  

• Monocle

  0 1,616 7.3 Scala

  Optics library for Scala

  

  A very popular Scala optics library is also called Monocle. I’ve been a happy user for a few years:

  https://github.com/optics-dev/Monocle

• estree

  1 4,801 0.0

  The ESTree Spec

  

• Babel (Formerly 6to5)

  5 42,674 9.6 TypeScript

  🐠 Babel is a compiler for writing next generation JavaScript.

  

  [2] https://github.com/babel/babel

• Acorn

  2 9,899 7.3 JavaScript

  A small, fast, JavaScript-based JavaScript parser

  

• espree

  2 2,161 0.0 JavaScript

  An Esprima-compatible JavaScript parser

  

• InfluxDB

  www.influxdata.com

  sponsored

  Collect and Analyze Billions of Data Points in Real Time. Manage all types of time series data in a single, purpose-built database. Run at any scale in any environment in the cloud, on-premises, or at the edge.

  

• recast

  2 4,712 5.4 TypeScript

  JavaScript syntax tree transformer, nondestructive pretty-printer, and automatic source map generator

• escodegen

  0 2,581 0.0 JavaScript

  ECMAScript code generator

  

• openapi-preprocessor

  0 33 0.0 Go

  An authoring tool for OpenAPI specifications

  

  I use a mixed approach for OpenAPI, but not bidirectional.

  I have OpenAPI pieces generated from my Go source code (comment, types, function signatures) as JSON.

  I also have a manually-edited master YAML document that refers to generated bits via $ref links.

  I then use openapi-preprocessor [1] (disclaimer: I wrote it) to produce a final openapi.json file which is committed in the repo.

  When I want to extend the API in a spec-first process, I can add the new routes manually in the YAML file. When I do the implementation I replace the manual bits by the generated one when they are ready. When committing I can check the diff of openapi.json to verify I'm not losing in the process.

  [1] https://github.com/dolmen-go/openapi-preprocessor

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