Struct multiboot2::Tag

#[repr(C)]
pub struct Tag {
    pub typ: TagTypeId,
    pub size: u32,
}

Common base structure for all tags that can be passed via the Multiboot2 Information Structure (MBI) to a Multiboot2 payload/program/kernel.

Can be transformed to any other tag (sized or unsized/DST) via Tag::cast_tag.

Do not confuse them with the Multiboot2 header tags. They are something different.

Fields

typ: TagTypeId

size: u32

Implementations

impl Tag

pub fn cast_tag<'a, T: TagTrait + ?Sized + 'a>(&'a self) -> &'a T

Casts the base tag to the specific tag type.

pub fn get_dst_str_slice(bytes: &[u8]) -> Result<&str, Utf8Error>

Some multiboot2 tags are a DST as they end with a dynamically sized byte slice. This function parses this slice as str so that either a valid UTF-8 Rust string slice without a terminating null byte or an error is returned.

Trait Implementations

impl Clone for Tag

fn clone(&self) -> Tag

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Tag

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Copy for Tag