Enum guppy::TargetFeatures

#[non_exhaustive]pub enum TargetFeatures<'a> {
    Unknown,
    Features(HashSet<&'a str, RandomState>),
}

A set of target features to match.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Unknown

The target features are unknown.

Features(HashSet<&'a str, RandomState>)

Only match the specified features.

Methods

impl<'a> TargetFeatures<'a>

pub fn features(features: &[&'a str]) -> TargetFeatures<'a>

Creates a new TargetFeatures which matches some features.

pub fn none() -> TargetFeatures<'a>

Creates a new TargetFeatures which doesn't match any features.

pub fn matches(&self, feature: &str) -> Option<bool>

Returns Some(true) if this feature is a match, Some(false) if it isn't, and None if the set of target features is unknown.

Trait Implementations

impl<'a> Clone for TargetFeatures<'a>

fn clone(&self) -> TargetFeatures<'a>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'a> Debug for TargetFeatures<'a>

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

Formats the value using the given formatter.