Struct FeatureInformation 

#[non_exhaustive]
pub struct FeatureInformation {
    pub index: u8,
    pub typ: FeatureType,
    pub version: u8,
}

Represents information about a specific feature as returned by the RootFeature::get_feature function.

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

index: u8

The index of the feature in the version table. This is used for invocations of functions of that feature.

typ: FeatureType

The type of the feature.

version: u8

The latest supported version of the feature.

Multi-version features are always backwards compatible as long as the feature ID does not change, meaning functions implemented for an older version of the same feature will behave as expected for every later version.

This field was added in feature version 1 and will be 0 for all older versions.

Trait Implementations

impl Clone for FeatureInformation

fn clone(&self) -> FeatureInformation

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FeatureInformation

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

Formats the value using the given formatter.

impl Hash for FeatureInformation

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 Copy for FeatureInformation