nibblecode 0.1.0

A serialization format based on rkyv
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

use core::cmp::Ordering;
use core::ptr::Alignment;
use std::mem::MaybeUninit;

use crate::impls::lexicographical_partial_ord;
use crate::list::ArchivedList;
use crate::primitive::ArchivedUsize;
use crate::util::max_alignment;
use crate::{Serialize, SerializeError, VerifyError};

impl<T: Serialize> Serialize for Vec<T> {
	type Archived = ArchivedList<T::Archived>;
	const ALIGN: Alignment = max_alignment([T::ALIGN, Alignment::of::<ArchivedUsize>()]);

	unsafe fn serialize(
		&self,
		out: *mut MaybeUninit<ArchivedList<T::Archived>>,
		heap: *mut MaybeUninit<u8>,
	) -> usize {
		unsafe { (**self).serialize(out, heap) }
	}

	fn serialized_size(&self, offset: usize) -> Result<usize, SerializeError> {
		(**self).serialized_size(offset)
	}

	#[inline]
	unsafe fn verify(
		this: *const ArchivedList<T::Archived>,
		buffer_end: *const u8,
	) -> Result<(), VerifyError> {
		unsafe { <[T]>::verify(this, buffer_end) }
	}
}

impl<T: PartialEq<U>, U> PartialEq<Vec<U>> for ArchivedList<T> {
	fn eq(&self, other: &Vec<U>) -> bool {
		self.as_slice().eq(other.as_slice())
	}
}

impl<T: PartialOrd<U>, U> PartialOrd<Vec<U>> for ArchivedList<T> {
	fn partial_cmp(&self, other: &Vec<U>) -> Option<Ordering> {
		lexicographical_partial_ord(self.as_slice(), other.as_slice())
	}
}

#[cfg(test)]
mod tests {
	use crate::test::roundtrip;

	#[test]
	fn roundtrip_vec() {
		roundtrip(&Vec::<i32>::new());
		roundtrip(&vec![1, 2, 3, 4]);
	}

	#[test]
	fn roundtrip_vec_zst() {
		roundtrip(&Vec::<()>::new());
		roundtrip(&vec![(), (), (), ()]);
	}

	#[test]
	fn roundtrip_option_vec() {
		roundtrip(&Some(Vec::<i32>::new()));
		roundtrip(&Some(vec![1, 2, 3, 4]));
	}

	#[test]
	fn roundtrip_result_vec() {
		roundtrip(&Ok::<_, ()>(Vec::<i32>::new()));
		roundtrip(&Ok::<_, ()>(vec![1, 2, 3, 4]));

		roundtrip(&Err::<(), _>(Vec::<i32>::new()));
		roundtrip(&Err::<(), _>(vec![1, 2, 3, 4]));
	}
}