Enum PayloadPermission 

pub enum PayloadPermission {
    Permitted,
    Forbidden,
}

Whether an Object carrying a given status is permitted a non-empty payload: the “Payload” column of the Object Status registry, MoQ Transport draft-19 Section 15.9, Table 16.

Draft-19 Section 11.2.1.1 phrases the rule as “An Object MUST have an empty payload unless its Object Status value is registered as permitting a payload”, and Section 15.9 adds that each new registration “MUST indicate whether the status permits a payload”. Modelling the column as a value keeps that obligation visible: a status cannot be added to ObjectStatus without ObjectStatus::payload_permission refusing to compile until its column is filled in.

Earlier drafts had no such column — draft-18 and its predecessors derived the same answer arithmetically, from the status being non-zero — so this type is deliberately draft-19-only rather than shared.

Variants

Permitted

Registry column “Yes”. The status permits a payload but does not require one: a zero-length Object with such a status is well formed.

Forbidden

Registry column “No”. An Object with such a status has an empty payload, and one carrying bytes is malformed.

Implementations

impl PayloadPermission

pub fn permits(self) -> bool

true for PayloadPermission::Permitted.

The permission answers on its own, without a payload length in hand, which is the point of moving the rule onto the status.

Trait Implementations

impl Clone for PayloadPermission

fn clone(&self) -> PayloadPermission

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for PayloadPermission

impl Debug for PayloadPermission

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

Formats the value using the given formatter.

impl Eq for PayloadPermission

impl PartialEq for PayloadPermission

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for PayloadPermission