Enum wasmtime_component_util::DiscriminantSize

pub enum DiscriminantSize {
    Size1,
    Size2,
    Size4,
}

Represents the possible sizes in bytes of the discriminant of a variant type in the component model

Variants

Size1

8-bit discriminant

Size2

16-bit discriminant

Size4

32-bit discriminant

Implementations

impl DiscriminantSize

pub const fn from_count(count: usize) -> Option<Self>

Calculate the size of discriminant needed to represent a variant with the specified number of cases.

pub const fn byte_size(&self) -> u32

Returns the size, in bytes, of this discriminant

Trait Implementations

impl Clone for DiscriminantSize

fn clone(&self) -> DiscriminantSize

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for DiscriminantSize

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

Formats the value using the given formatter.

impl From<DiscriminantSize> for u32

fn from(size: DiscriminantSize) -> u32

Size of the discriminant as a u32

impl From<DiscriminantSize> for usize

fn from(size: DiscriminantSize) -> usize

Size of the discriminant as a usize

impl Hash for DiscriminantSize

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<DiscriminantSize> for DiscriminantSize

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

This method tests for self and other values to be equal, and is used by ==.

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

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

impl Copy for DiscriminantSize

impl Eq for DiscriminantSize

impl StructuralEq for DiscriminantSize

impl StructuralPartialEq for DiscriminantSize