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 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 StructuralPartialEq for DiscriminantSize