mlua 0.11.6

High level bindings to Lua 5.5/5.4/5.3/5.2/5.1 (including LuaJIT) and Luau with async/await features and support of writing native Lua modules in Rust.
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50

//! This example shows a simple read-evaluate-print-loop (REPL).

use mlua::{Error, Lua, MultiValue};
use rustyline::DefaultEditor;

fn main() {
    let lua = Lua::new();
    let mut editor = DefaultEditor::new().expect("Failed to create editor");

    loop {
        let mut prompt = "> ";
        let mut line = String::new();

        loop {
            match editor.readline(prompt) {
                Ok(input) => line.push_str(&input),
                Err(_) => return,
            }

            match lua.load(&line).eval::<MultiValue>() {
                Ok(values) => {
                    editor.add_history_entry(line).unwrap();
                    if values.len() > 0 {
                        println!(
                            "{}",
                            values
                                .iter()
                                .map(|value| format!("{:#?}", value))
                                .collect::<Vec<_>>()
                                .join("\t")
                        );
                    }
                    break;
                }
                Err(Error::SyntaxError {
                    incomplete_input: true,
                    ..
                }) => {
                    // continue reading input and append it to `line`
                    line.push_str("\n"); // separate input lines
                    prompt = ">> ";
                }
                Err(e) => {
                    eprintln!("error: {}", e);
                    break;
                }
            }
        }
    }
}