moco_vm/
integer.rs

1use core::{
2    fmt::{Debug, Display},
3    ops::{Add, BitAnd, BitOr, BitXor, Div, Mul, Shl, Shr, Sub},
4};
5
6/// An integer.
7pub trait Integer:
8    Add
9    + Sub
10    + Mul
11    + Div
12    + Shl
13    + Shr
14    + BitAnd
15    + BitOr
16    + BitXor
17    + PartialEq
18    + Eq
19    + PartialOrd
20    + Ord
21    + Clone
22    + Copy
23    + Default
24    + Debug
25    + Display
26{
27    /// A size in bits.
28    const BITS: usize;
29
30    /// A mask.
31    const MASK: Self;
32
33    /// Converts a `usize` to an integer.
34    fn from_usize(value: usize) -> Self;
35
36    /// Converts an integer to a `usize`.
37    fn to_usize(self) -> usize;
38}
39
40macro_rules! impl_integer {
41    ($type:ty) => {
42        impl Integer for $type {
43            const BITS: usize = Self::BITS as _;
44            const MASK: Self = Self::MAX;
45
46            fn from_usize(value: usize) -> Self {
47                value as _
48            }
49
50            fn to_usize(self) -> usize {
51                self as _
52            }
53        }
54    };
55}
56
57impl_integer!(i8);
58impl_integer!(i16);
59impl_integer!(i32);
60impl_integer!(i64);
61impl_integer!(i128);
62impl_integer!(isize);
63impl_integer!(u8);
64impl_integer!(u16);
65impl_integer!(u32);
66impl_integer!(u64);
67impl_integer!(u128);
68impl_integer!(usize);
moco_vm/integer.rs

moco_vm/
integer.rs
