https://github.com/braheezy/gravlax

Interpreter for Lox
https://github.com/braheezy/gravlax

go lox

Last synced: 2 days ago
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Interpreter for Lox

• Host: GitHub
• URL: https://github.com/braheezy/gravlax
• Owner: braheezy
• Created: 2024-05-25T01:36:52.000Z (8 months ago)
• Default Branch: main
• Last Pushed: 2024-10-15T05:49:15.000Z (3 months ago)
• Last Synced: 2024-11-10T13:35:25.707Z (2 months ago)
• Topics: go, lox
• Language: Go
• Homepage:
• Size: 38.1 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# gravlax

A Go implementation of an interpreter for the educational Lox programming language as taught in the book [Crafting Interpreters](https://craftinginterpreters.com/).

The second half of the book covers a bytecode VM approach to implementing Lox. I did that in Zig [here](https://github.com/braheezy/zig-lox).

## Usage

You need Go 1.21.9+.

Clone the code and get inside the directory:

```bash

git clone https://github.com/braheezy/gravlax

cd gravlax

```

Run the REPL (Ctrl+D to exit):

```bash

$ go run main.go

> print("hey there");

hey there

> (ctrl+d)

bye!

```

Or run a file:

```bash

$ echo 'print("hey there");' > hello.lox

$ go run main.go hello.lox

hey there

```

## Notes

The tutorial book covers `jlox`, a Java implementation using a tree-walk interpreter approach to executing Lox programs. `gravlax` is the same thing, but in Go.

Of note, this implementation:

- supports block comments

- the `break` keyword