Struct TagHeader

Source
#[repr(C, align(8))]
pub struct TagHeader { pub typ: TagTypeId, pub size: u32, }
Expand description

The common header that all tags have in common. This type is ABI compatible.

Not to be confused with Multiboot header tags, which are something different.

It is the sized counterpart of GenericTag, an internal type.

Fields§

§typ: TagTypeId

The ABI-compatible TagType.

§size: u32

The total size of the tag including the header.

Implementations§

Source§

impl TagHeader

Source

pub fn new(typ: impl Into<TagTypeId>, size: u32) -> Self

Creates a new header.

Trait Implementations§

Source§

impl Clone for TagHeader

Source§

fn clone(&self) -> TagHeader

Returns a copy of the value. Read more
1.0.0§

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

Performs copy-assignment from source. Read more
Source§

impl Debug for TagHeader

Source§

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

Formats the value using the given formatter. Read more
Source§

impl Hash for TagHeader

Source§

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given [Hasher]. Read more
1.3.0§

fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given [Hasher]. Read more
Source§

impl Header for TagHeader

Source§

fn payload_len(&self) -> usize

Returns the length of the payload, i.e., the bytes that are additional to the header. The value is measured in bytes.
Source§

fn set_size(&mut self, total_size: usize)

Updates the header with the given total_size.
Source§

fn total_size(&self) -> usize

Returns the total size of the struct, thus the size of the header itself plus Header::payload_len.
Source§

impl Ord for TagHeader

Source§

fn cmp(&self, other: &TagHeader) -> Ordering

This method returns an [Ordering] between self and other. Read more
1.21.0§

fn max(self, other: Self) -> Self
where Self: Sized,

Compares and returns the maximum of two values. Read more
1.21.0§

fn min(self, other: Self) -> Self
where Self: Sized,

Compares and returns the minimum of two values. Read more
1.50.0§

fn clamp(self, min: Self, max: Self) -> Self
where Self: Sized,

Restrict a value to a certain interval. Read more
Source§

impl PartialEq for TagHeader

Source§

fn eq(&self, other: &TagHeader) -> bool

Tests for self and other values to be equal, and is used by ==.
1.0.0§

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
Source§

impl PartialOrd for TagHeader

Source§

fn partial_cmp(&self, other: &TagHeader) -> Option<Ordering>

This method returns an ordering between self and other values if one exists. Read more
1.0.0§

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator. Read more
1.0.0§

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator. Read more
1.0.0§

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator. Read more
1.0.0§

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator. Read more
Source§

impl Copy for TagHeader

Source§

impl Eq for TagHeader

Source§

impl StructuralPartialEq for TagHeader

Auto Trait Implementations§

§

impl Freeze for TagHeader

§

impl RefUnwindSafe for TagHeader

§

impl Send for TagHeader

§

impl Sync for TagHeader

§

impl Unpin for TagHeader

§

impl UnwindSafe for TagHeader

Blanket Implementations§

§

impl<T> Any for T
where T: 'static + ?Sized,

§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
§

impl<T> Borrow<T> for T
where T: ?Sized,

§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
§

impl<T> BorrowMut<T> for T
where T: ?Sized,

§

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
§

impl<T> CloneToUninit for T
where T: Clone,

§

unsafe fn clone_to_uninit(&self, dst: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. Read more
§

impl<T> From<T> for T

§

fn from(t: T) -> T

Returns the argument unchanged.

§

impl<T, U> Into<U> for T
where U: From<T>,

§

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of [From]<T> for U chooses to do.

Source§

impl<T> Pointee for T

Source§

type Metadata = ()

The metadata type for pointers and references to this type.
§

impl<T> ToOwned for T
where T: Clone,

§

type Owned = T

The resulting type after obtaining ownership.
§

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
§

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
§

impl<T, U> TryFrom<U> for T
where U: Into<T>,

§

type Error = Infallible

The type returned in the event of a conversion error.
§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
§

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

§

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.