https://github.com/rsms/co

A programming language in early development
https://github.com/rsms/co

Last synced: over 1 year ago
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A programming language in early development

• Host: GitHub
• URL: https://github.com/rsms/co
• Owner: rsms
• License: mit
• Created: 2017-08-07T07:28:47.000Z (almost 9 years ago)
• Default Branch: master
• Last Pushed: 2020-03-13T23:59:16.000Z (over 6 years ago)
• Last Synced: 2025-03-15T21:17:04.037Z (over 1 year ago)
• Language: TypeScript
• Homepage: https://rsms.me/co/
• Size: 2.82 MB
• Stars: 152
• Watchers: 7
• Forks: 9
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# The Co programming language

A programming language and optimizing compiler.

This is a project about:

- Designing a practical, general-purpose programming language

  - Statically typed, but the compiler does as much for you as possible

  - Simple syntax, few built-ins

  - More like Go than JavaScript

- Optimizing compiler

  - Input-language agnostic

  - Intermediate Representation in SSA form

  - Flexible target architecture (x86, amd64, vm, wasm, etc.)

- Pipelined rather than progressive

  - scanning source code into the parser

  - parser passes AST chunks to the IR builder

  - IR builder optimizes the chunks and then passes them to the code generator

  - All this happens in a streaming fashion

  - But each step can be easily separated and run independendly, making

    it easy to inspect the state of the compiler at various steps of the

    process.

- Using no exernal libraries

  - Portable (can run in a web browser)

  - Simplify codebase

  - Minimize risk of security concerns

  - Maximize startup performance

## Using

Requirements: [nodejs](https://nodejs.org/) >=8.0

Building:

- Setup: `npm install`

- Build incrementally: `./build.js -w`

- Run: `./dist/co.g`

Some useful things:

- Build debug version in one go: `./build.js`

- Build optimized production version: `./build.js -O`

- Run unit tests before main program: `./dist/co.g -test`

- Run unit tests and exit: `./dist/co.g -test-only`

- Print source diagnostics report and exit: `./dist/co.g -nobuild`

- Live coding setup:

  - Terminal 1: `./build.js -w`

  - Terminal 2: `autorun dist/co.g`

  - You'll need [`autorun`](https://github.com/rsms/autorun)