Enum cargo::core::resolver::features::RequestedFeatures

pub enum RequestedFeatures {
    CliFeatures(CliFeatures),
    DepFeatures {
        features: Rc<BTreeSet<InternedString>>,
        uses_default_features: bool,
    },
}

Features flags requested for a package.

This should be cheap and fast to clone, it is used in the resolver for various caches.

This is split into enum variants because the resolver needs to handle features coming from different places (command-line and dependency declarations), but those different places have different constraints on which syntax is allowed. This helps ensure that every place dealing with features is properly handling those syntax restrictions.

Variants

CliFeatures(CliFeatures)

Features requested on the command-line with flags.

DepFeatures

Fields

features: Rc<BTreeSet<InternedString>>

The features dependency field.

uses_default_features: bool

The default-features dependency field.

Features specified in a dependency declaration.

Trait Implementations

impl Clone for RequestedFeatures

fn clone(&self) -> RequestedFeatures

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for RequestedFeatures

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

Formats the value using the given formatter.

impl Hash for RequestedFeatures

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, 

Feeds a slice of this type into the given Hasher.

impl PartialEq<RequestedFeatures> for RequestedFeatures

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

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

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

This method tests for !=.

impl Eq for RequestedFeatures

impl StructuralEq for RequestedFeatures

impl StructuralPartialEq for RequestedFeatures