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

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

Returns a copy of the value. Read more

Performs copy-assignment from source. Read more

Formats the value using the given formatter. Read more

Feeds this value into the given Hasher. Read more

Feeds a slice of this type into the given Hasher. Read more

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

This method tests for !=.

Auto Trait Implementations

Blanket Implementations

Gets the TypeId of self. Read more

Immutably borrows from an owned value. Read more

Mutably borrows from an owned value. Read more

Compare self to key and return true if they are equal.

Returns the argument unchanged.

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

Should always be Self

The resulting type after obtaining ownership.

Creates owned data from borrowed data, usually by cloning. Read more

Uses borrowed data to replace owned data, usually by cloning. Read more

The type returned in the event of a conversion error.

Performs the conversion.

The type returned in the event of a conversion error.

Performs the conversion.