Enum Tag 

#[non_exhaustive]
pub enum Tag {
    Anonymous,
    Context(u8),
    CommonProfile(u32),
    ImplicitProfile(u32),
    FullyQualified {
        vendor: u16,
        profile: u16,
        tag: u32,
    },
}

A Matter TLV tag.

The enum is marked #[non_exhaustive] so adding hypothetical future variants is not a breaking change for downstream match expressions.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Anonymous

No tag bytes follow the control octet.

Context(u8)

One tag byte follows, carrying the context-specific tag number.

CommonProfile(u32)

A common-profile tag number. The writer emits 2 bytes if the value fits in u16, otherwise 4 bytes.

ImplicitProfile(u32)

An implicit-profile tag number. The writer emits 2 bytes if the value fits in u16, otherwise 4 bytes.

FullyQualified

A fully-qualified tag. Vendor and profile are always 2 bytes each on the wire; the writer emits 2 bytes for tag if it fits in u16, otherwise 4 bytes.

Fields

vendor: u16

16-bit vendor identifier.

profile: u16

16-bit profile identifier within the vendor.

tag: u32

Tag number within the profile.

Trait Implementations

impl Clone for Tag

fn clone(&self) -> Tag

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Tag

impl Debug for Tag

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

Formats the value using the given formatter.

impl Eq for Tag

impl Hash for Tag

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

Feeds this value into the given Hasher.

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

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for Tag

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Tag