mck 0.7.1

Utility crate for the formal verification tool machine-check
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
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134

use super::CombinedBitvector;
use crate::{
    abstr::{combined::DomainCombination, BitvectorDomain},
    forward::*,
    misc::{BitvectorBound, CBound},
};

macro_rules! generate_uni_op {
    ($op_name:ident) => {
        fn $op_name(self) -> Self {
            Self::combine(self.left.$op_name(), self.right.$op_name())
        }
    };
}

macro_rules! generate_bi_op {
    ($op_name:ident, $output:ty) => {
        fn $op_name(self, rhs: Self) -> $output {
            <$output>::combine(self.left.$op_name(rhs.left), self.right.$op_name(rhs.right))
        }
    };
}

macro_rules! generate_divrem_op {
    ($op_name:ident, $output:ty) => {
        fn $op_name(self, rhs: Self) -> $output {
            Self::combine_panic_result(self.left.$op_name(rhs.left), self.right.$op_name(rhs.right))
        }
    };
}

macro_rules! generate_cmp_op {
    ($op_name:ident, $output:ty) => {
        fn $op_name(self, rhs: Self) -> $output {
            Self::combine_boolean(self.left.$op_name(rhs.left), self.right.$op_name(rhs.right))
        }
    };
}

impl<B: BitvectorBound, D: DomainCombination<B>> Bitwise for CombinedBitvector<B, D>
where
    D::Left: Bitwise,
    D::Right: Bitwise,
{
    generate_uni_op!(bit_not);
    generate_bi_op!(bit_and, Self);
    generate_bi_op!(bit_or, Self);
    generate_bi_op!(bit_xor, Self);
}

impl<B: BitvectorBound, D: DomainCombination<B>> HwArith for CombinedBitvector<B, D>
where
    D::Left: HwArith<DivRemResult = PanicResult<D::Left>>,
    D::Right: HwArith<DivRemResult = PanicResult<D::Right>>,
{
    type DivRemResult = PanicResult<Self>;

    generate_uni_op!(arith_neg);
    generate_bi_op!(add, Self);
    generate_bi_op!(sub, Self);
    generate_bi_op!(mul, Self);

    generate_divrem_op!(udiv, PanicResult<Self>);
    generate_divrem_op!(urem, PanicResult<Self>);
    generate_divrem_op!(sdiv, PanicResult<Self>);
    generate_divrem_op!(srem, PanicResult<Self>);
}

impl<B: BitvectorBound, D: DomainCombination<B>> TypedCmp for CombinedBitvector<B, D>
where
    D::Left: TypedCmp<Output = Boolean>,
    D::Right: TypedCmp<Output = Boolean>,
{
    type Output = Boolean;

    generate_cmp_op!(ult, Self::Output);
    generate_cmp_op!(ule, Self::Output);
    generate_cmp_op!(slt, Self::Output);
    generate_cmp_op!(sle, Self::Output);
}

impl<B: BitvectorBound, D: DomainCombination<B>> TypedEq for CombinedBitvector<B, D>
where
    D::Left: TypedEq<Output = Boolean>,
    D::Right: TypedEq<Output = Boolean>,
{
    type Output = Boolean;
    generate_cmp_op!(eq, Self::Output);
    generate_cmp_op!(ne, Self::Output);
}

impl<B: BitvectorBound, D: DomainCombination<B>> HwShift for CombinedBitvector<B, D>
where
    D::Left: HwShift<Output = D::Left>,
    D::Right: HwShift<Output = D::Right>,
{
    type Output = Self;

    generate_bi_op!(logic_shl, Self::Output);
    generate_bi_op!(logic_shr, Self::Output);
    generate_bi_op!(arith_shr, Self::Output);
}

impl<B: BitvectorBound, D: DomainCombination<B>, X: BitvectorBound> BExt<X>
    for CombinedBitvector<B, D>
where
    D::Left: BExt<X, Output = <D::Left as BitvectorDomain>::General<X>>,
    D::Right: BExt<X, Output = <D::Right as BitvectorDomain>::General<X>>,
{
    type Output = CombinedBitvector<X, D::General<X>>;
    fn uext(self, new_bound: X) -> Self::Output {
        Self::Output::combine(self.left.uext(new_bound), self.right.uext(new_bound))
    }
    fn sext(self, new_bound: X) -> Self::Output {
        Self::Output::combine(self.left.sext(new_bound), self.right.sext(new_bound))
    }
}

impl<const W: u32, const X: u32, D: DomainCombination<CBound<W>>> Ext<X>
    for CombinedBitvector<CBound<W>, D>
where
    D::Left: BExt<CBound<X>, Output = <D::Left as BitvectorDomain>::General<CBound<X>>>,
    D::Right: BExt<CBound<X>, Output = <D::Right as BitvectorDomain>::General<CBound<X>>>,
{
    type Output = CombinedBitvector<CBound<X>, D::General<CBound<X>>>;

    fn uext(self) -> Self::Output {
        BExt::uext(self, CBound::<X>)
    }

    fn sext(self) -> Self::Output {
        BExt::sext(self, CBound::<X>)
    }
}