multiboot2/
end.rs

1//! Module for [`EndTag`].
2
3use crate::{TagHeader, TagType};
4use core::mem;
5use multiboot2_common::{MaybeDynSized, Tag};
6
7/// The end tag ends the information struct.
8#[derive(Debug)]
9#[repr(C, align(8))]
10pub struct EndTag {
11    header: TagHeader,
12}
13
14impl Default for EndTag {
15    fn default() -> Self {
16        Self {
17            header: TagHeader::new(Self::ID, mem::size_of::<Self>() as u32),
18        }
19    }
20}
21
22impl MaybeDynSized for EndTag {
23    type Header = TagHeader;
24
25    const BASE_SIZE: usize = mem::size_of::<Self>();
26
27    fn dst_len(_: &TagHeader) {}
28}
29
30impl Tag for EndTag {
31    type IDType = TagType;
32
33    const ID: TagType = TagType::End;
34}
35
36#[cfg(test)]
37mod tests {
38    use super::*;
39
40    #[test]
41    /// Compile time test for [`EndTag`].
42    fn test_end_tag_size() {
43        unsafe {
44            core::mem::transmute::<[u8; 8], EndTag>([0u8; 8]);
45        }
46    }
47}
multiboot2/end.rs

multiboot2/
end.rs
