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FeatureEntry

Enum FeatureEntry 

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pub enum FeatureEntry {
    Local(String),
    OptionalDep(String),
    DepFeature {
        dep: String,
        feature: String,
    },
}
Expand description

Typed view of a single right-hand-side entry in a [features] list (feature_name, dep:dependency_name, or dependency_name/feature_name).

cabin-core parses the form lazily — the on-disk shape stays the original string — so older readers are unaffected. The feature resolver consumes the typed view to decide which effects an entry has.

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Local(String)

Enables another local feature on the same package.

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OptionalDep(String)

Enables an optional Cabin package dependency declared by this package. Spelled dep:<name> in the manifest.

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DepFeature

Requests feature on dep. If dep is optional, this also enables it. Spelled <dep>/<feature> in the manifest.

Fields

§feature: String

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impl FeatureEntry

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pub fn parse(input: &str) -> Result<Self, InvalidFeatureEntryKind>

Parse a single [features] value into a typed entry.

§Errors

Returns InvalidFeatureEntryKind::Empty for an empty input, InvalidFeatureEntryKind::EmptyDepName for a bare dep:, InvalidFeatureEntryKind::MultiplePathSeparators for more than one /, InvalidFeatureEntryKind::EmptyDepOrFeature when either side of <dep>/<feature> is empty, and InvalidFeatureEntryKind::UnsupportedCharacter for a name containing a character outside the allowed identifier set.

Trait Implementations§

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impl Clone for FeatureEntry

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fn clone(&self) -> FeatureEntry

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
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impl Debug for FeatureEntry

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

Formats the value using the given formatter. Read more
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impl PartialEq for FeatureEntry

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

Tests for self and other values to be equal, and is used by ==.
1.0.0 (const: unstable) · Source§

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl Eq for FeatureEntry

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impl StructuralPartialEq for FeatureEntry

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Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Checks if this value is equivalent to the given key. Read more
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impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

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

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impl<T> Same for T

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type Output = T

Should always be Self
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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.