veriwasm 0.1.4

A safety verifier for native-compiled WebAssembly code
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

use crate::lattices::{ConstLattice, VariableState};

#[derive(Clone, Copy, PartialEq, Eq, Debug)]
pub enum HeapValue {
    HeapBase,
    Bounded4GB,
    HeapAddr,
    LucetTables,
    GuestTable0,
    GlobalsBase,
    RIPConst,
}

pub type HeapValueLattice = ConstLattice<HeapValue>;

pub type HeapLattice = VariableState<HeapValueLattice>;

#[test]
fn heap_lattice_test() {
    use crate::lattices::reachingdefslattice::LocIdx;
    use crate::lattices::Lattice;

    let x1 = HeapValueLattice { v: None };
    let x2 = HeapValueLattice {
        v: Some(HeapValue::HeapBase),
    };
    let x3 = HeapValueLattice {
        v: Some(HeapValue::HeapBase),
    };
    let x4 = HeapValueLattice {
        v: Some(HeapValue::Bounded4GB),
    };

    assert_eq!(x1 == x2, false);
    assert_eq!(x2 == x3, true);
    assert_eq!(x3 == x4, false);

    assert_eq!(x1 != x2, true);
    assert_eq!(x2 != x3, false);
    assert_eq!(x3 != x4, true);

    assert_eq!(x1 > x2, false);
    assert_eq!(x2 > x3, false);
    assert_eq!(x3 > x4, false);

    assert_eq!(x1 < x2, true);
    assert_eq!(x2 < x3, false);
    assert_eq!(x3 < x4, false);

    assert_eq!(
        x1.meet(&x2, &LocIdx { addr: 0, idx: 0 }) == HeapValueLattice { v: None },
        true
    );
    assert_eq!(
        x2.meet(&x3, &LocIdx { addr: 0, idx: 0 })
            == HeapValueLattice {
                v: Some(HeapValue::HeapBase)
            },
        true
    );
    assert_eq!(
        x3.meet(&x4, &LocIdx { addr: 0, idx: 0 }) == HeapValueLattice { v: None },
        true
    );
}