Struct RibbonId 

pub struct RibbonId { /* private fields */ }

Handle to a pre-uploaded ribbon produced by DeviceResources::upload_ribbon.

Implementations

impl RibbonId

pub const INVALID: RibbonId

A handle that refers to nothing. Store lookups always return None for it. Use it as the default / placeholder value where a real resource has not been assigned yet.

pub fn index(&self) -> usize

The raw slot index this handle points at. Used to index parallel per-slot arrays; not meaningful for INVALID.

Trait Implementations

impl Clone for RibbonId

fn clone(&self) -> RibbonId

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl ContentHandle for RibbonId

const INVALID: Self = RibbonId::INVALID

The handle value that refers to nothing. Store lookups always return None for it.

fn index(&self) -> usize

The raw slot index this handle points at.

fn generation(&self) -> u32

The generation this handle was issued against.

fn from_parts(index: u32, generation: u32) -> Self

Build a handle from a raw slot index and generation. The store mints a handle this way on insert; outside code obtains handles from upload calls and treats them as opaque.

fn is_valid(&self) -> bool

Whether this handle is anything other than INVALID. A valid handle may still fail to resolve if its slot was freed.

impl Copy for RibbonId

impl Debug for RibbonId

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

Formats the value using the given formatter.

impl Eq for RibbonId

impl Hash for RibbonId

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 RibbonId

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

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

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

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

impl StructuralPartialEq for RibbonId