https://github.com/gengjiawen/monkey-rust

A dancing with interpreter and compiler
https://github.com/gengjiawen/monkey-rust

compiler interpreter learning-by-doing monkey monkey-programming-language rust

Last synced: about 2 months ago
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A dancing with interpreter and compiler

• Host: GitHub
• URL: https://github.com/gengjiawen/monkey-rust
• Owner: gengjiawen
• License: mit
• Created: 2020-10-08T14:55:00.000Z (over 4 years ago)
• Default Branch: main
• Last Pushed: 2025-04-02T01:40:54.000Z (2 months ago)
• Last Synced: 2025-04-02T12:48:40.443Z (2 months ago)
• Topics: compiler, interpreter, learning-by-doing, monkey, monkey-programming-language, rust
• Language: JavaScript
• Homepage:
• Size: 4.53 MB
• Stars: 63
• Watchers: 2
• Forks: 7
• Open Issues: 19
• Metadata Files:
  • Readme: README.md
  • Changelog: CHANGELOG.md
  • License: LICENSE
  • Code of conduct: CODE_OF_CONDUCT.md

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README

        
# monkey-rust

![Rust](https://github.com/gengjiawen/monkey-rust/workflows/Rust/badge.svg)

[![Gitpod ready-to-code](https://img.shields.io/badge/Gitpod-ready--to--code-blue?logo=gitpod)](https://gitpod.io/?workspaceClass=g1-large&editor=code#https://github.com/gengjiawen/monkey-rust)

[![monkey-interpreter](https://img.shields.io/crates/v/monkey-interpreter)](https://crates.io/crates/monkey-interpreter)

[![npm version](https://img.shields.io/npm/v/@gengjiawen/monkey-wasm)](https://www.npmjs.com/package/@gengjiawen/monkey-wasm)

An interpreter for the Monkey programming language written in Rust

![The Monkey Programming Language](https://cloud.githubusercontent.com/assets/1013641/22617482/9c60c27c-eb09-11e6-9dfa-b04c7fe498ea.png)

## What’s Monkey?

Monkey has a C-like syntax, supports **variable bindings**, **prefix** and **infix operators**, has **first-class** and **higher-order functions**, can handle **closures** with ease and has **integers**, **booleans**, **arrays** and **hashes** built-in.

Official site is: https://monkeylang.org/. It's has various implementation languages :).

There is a book about learning how to make an interpreter: [Writing An Interpreter In Go](https://interpreterbook.com/#the-monkey-programming-language). This is where the Monkey programming language come from.

## Features

- Split packages to make everything minimum

- **REPL**: A Read-Eval-Print-Loop (REPL) for Monkey tokenizer, parser, evaluator, compiler

- location info for ast

- test for every module

- **Wasm**: A WebAssembly target, thus run monkey on browser is directly supported.

- bytecode viewer from source

### AST Online playground

https://astexplorer.net/#/gist/e23a81ce309e8fcffe95ddd1b5661061/01d0b4b078304ddd9639eae9f4e6d342e2b9d075

### Compiler playground

https://gengjiawen.github.io/monkey-rust/

## Instruction

### Build and test

```bash

$ cargo build

$ cargo test

```