beamr 0.3.5

A Rust runtime with the BEAM's execution model, targeting Gleam
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
60
61
62
63
64
65
66
67
68
69
70
71

use crate::atom::Atom;
use crate::native::ProcessContext;
use crate::term::Term;

use super::bitwise_bifs::*;

fn context() -> ProcessContext {
    ProcessContext::new()
}

fn badarg() -> Term {
    Term::atom(Atom::BADARG)
}

#[test]
fn bitwise_acceptance_values_match_erlang() {
    let mut context = context();
    assert_eq!(
        bif_band(&[Term::small_int(5), Term::small_int(3)], &mut context),
        Ok(Term::small_int(1))
    );
    assert_eq!(
        bif_bor(&[Term::small_int(5), Term::small_int(3)], &mut context),
        Ok(Term::small_int(7))
    );
    assert_eq!(
        bif_bxor(&[Term::small_int(5), Term::small_int(3)], &mut context),
        Ok(Term::small_int(6))
    );
    assert_eq!(
        bif_bsl(&[Term::small_int(1), Term::small_int(4)], &mut context),
        Ok(Term::small_int(16))
    );
    assert_eq!(
        bif_bsr(&[Term::small_int(16), Term::small_int(4)], &mut context),
        Ok(Term::small_int(1))
    );
    assert_eq!(
        bif_bnot(&[Term::small_int(0)], &mut context),
        Ok(Term::small_int(-1))
    );
}

#[test]
fn bitwise_rejects_non_integer_arguments() {
    let mut context = context();
    assert_eq!(
        bif_band(&[Term::atom(Atom::OK), Term::small_int(1)], &mut context),
        Err(badarg())
    );
    assert_eq!(
        bif_bnot(&[Term::atom(Atom::OK)], &mut context),
        Err(badarg())
    );
    assert_eq!(
        bif_bor(&[Term::small_int(1), Term::atom(Atom::OK)], &mut context),
        Err(badarg())
    );
    assert_eq!(
        bif_bsl(&[Term::small_int(1), Term::small_int(-1)], &mut context),
        Err(badarg())
    );
    assert_eq!(
        bif_bsr(&[Term::small_int(1), Term::small_int(-1)], &mut context),
        Err(badarg())
    );
    assert_eq!(
        bif_bxor(&[Term::small_int(1), Term::atom(Atom::OK)], &mut context),
        Err(badarg())
    );
}