xmachine 0.2.1

A fast, cross platform virtual machine implemented in Rust without the Standard Library
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
51
52
53
54
55
56
57
58
59

extern crate xmachine;
use xmachine::{Machine, Value};

#[cfg(test)]
mod iterative {
    use super::*;

    fn sub(m: &mut Machine) {
        let n1 = m.get_arg();
        let n2 = m.get_arg();
        m.return_value(n1 - n2);
    }

    #[test]
    fn while_loop() {
        let mut m = Machine::new();
        m.push(Value::function(sub, &m));
        m.push(Value::string("sub"));
        m.store();

        m.push(Value::number(5));
        m.push(Value::string("test"));
        m.store();
        m.push(Value::function(
            |m: &mut Machine| {
                m.push(Value::string("test"));
                m.load();
                m.push(Value::number(1));
                m.push(Value::string("test"));
                m.load();
                m.push(Value::string("sub"));
                m.load();
                m.call();
                m.push(Value::string("test"));
                m.store();
            },
            &m,
        ));
        m.push(Value::function(
            |m: &mut Machine| {
                m.push(Value::string("test"));
                m.load();
            },
            &m,
        ));
        m.while_loop();

        assert_eq!(
            m.stack,
            vec![
                Value::number(5),
                Value::number(4),
                Value::number(3),
                Value::number(2),
                Value::number(1),
            ]
        )
    }
}