alice.pds.demo.boltless.dev
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1knot_types::scalar_newtype! {
2 pub(crate) struct Crc32(u32);
3 pub struct MaxWireBytes(usize);
4}
5
6#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash, Default)]
7pub(crate) struct PackOffset(u64);
8
9impl PackOffset {
10 pub(crate) fn new(value: u64) -> Self {
11 Self(value)
12 }
13
14 pub(crate) fn get(self) -> u64 {
15 self.0
16 }
17
18 // Hostile packs will ask to go back past the start of a file,
19 // so just making sure.
20 pub(crate) fn checked_sub_distance(self, distance: u64) -> Option<Self> {
21 self.0.checked_sub(distance).map(Self)
22 }
23}
24
25#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)]
26pub struct DeltaDepth(usize);
27
28impl DeltaDepth {
29 pub(crate) const ZERO: Self = Self(0);
30
31 pub const fn new(depth: usize) -> Self {
32 Self(depth)
33 }
34
35 pub(crate) const fn get(self) -> usize {
36 self.0
37 }
38
39 pub(crate) fn deeper(self) -> Self {
40 Self(self.0 + 1)
41 }
42
43 pub(crate) fn exceeds(self, max: DeltaDepth) -> bool {
44 self.0 > max.0
45 }
46}
47
48#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord)]
49pub struct MaxObjectBytes(u64);
50
51impl MaxObjectBytes {
52 pub const fn new(bytes: u64) -> Self {
53 Self(bytes)
54 }
55
56 pub const fn get(self) -> u64 {
57 self.0
58 }
59
60 pub(crate) const fn exceeded_by(self, size: u64) -> bool {
61 size > self.0
62 }
63}
64
65#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord)]
66pub struct MaxTotalBytes(u64);
67
68impl MaxTotalBytes {
69 pub const fn new(bytes: u64) -> Self {
70 Self(bytes)
71 }
72
73 pub const fn get(self) -> u64 {
74 self.0
75 }
76
77 pub(crate) const fn exceeded_by(self, size: u64) -> bool {
78 size > self.0
79 }
80}
81
82#[derive(Debug, Clone, Copy, PartialEq, Eq)]
83pub(crate) struct Rounds(usize);
84
85impl Rounds {
86 pub(crate) fn new(rounds: usize) -> Self {
87 Self(rounds)
88 }
89
90 // Ensuring chains deeper than the limit return `None` instead of
91 // wrapping and doing like 18 quintillion more passes.
92 pub(crate) fn next(self) -> Option<Self> {
93 self.0.checked_sub(1).map(Self)
94 }
95}
96
97#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
98pub(crate) struct RefsDigest([u8; 32]);
99
100impl RefsDigest {
101 pub(crate) fn new(bytes: [u8; 32]) -> Self {
102 Self(bytes)
103 }
104
105 pub(crate) fn as_bytes(&self) -> &[u8] {
106 &self.0
107 }
108}