Struct guppy::graph::feature::feature_list::FeatureList

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pub struct FeatureList<'g> { /* private fields */ }
Expand description

A sorted, deduplicated list of features from a single package.

This provides a convenient way to query and print out lists of features.

Returned by methods on FeatureSet.

Implementations§

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impl<'g> FeatureList<'g>

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pub fn new( package: PackageMetadata<'g>, labels: impl IntoIterator<Item = FeatureLabel<'g>>, ) -> Self

Creates a new FeatureList from a package and an iterator over feature labels.

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pub fn package(&self) -> &PackageMetadata<'g>

Returns the package corresponding to this feature list.

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pub fn contains(&self, label: FeatureLabel<'_>) -> bool

Returns true if this feature list contains this feature label.

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pub fn has_base(&self) -> bool

Returns true if this feature list contains the “base” feature.

The “base” feature represents the package with no features enabled.

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pub fn has_named_feature(&self, feature_name: &str) -> bool

Returns true if this feature list contains the specified named feature.

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pub fn has_optional_dependency(&self, dep_name: &str) -> bool

Returns true if this feature list contains the specified optional dependency.

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pub fn labels(&self) -> &[FeatureLabel<'g>]

Returns the list of labels as a slice.

This slice is guaranteed to be sorted and unique.

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pub fn named_features(&self) -> impl Iterator<Item = &'g str> + '_

Returns an iterator containing all named features.

The iterator is guaranteed to be sorted and unique.

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pub fn optional_deps(&self) -> impl Iterator<Item = &'g str> + '_

Returns an iterator containing all optional dependencies.

The iterator is guaranteed to be sorted and unique.

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pub fn iter<'a>(&'a self) -> Iter<'g, 'a>

Returns a borrowed iterator over feature IDs.

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pub fn display_features<'a>(&'a self) -> DisplayFeatures<'g, 'a>

Returns a pretty-printer over the list of feature labels.

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pub fn into_labels(self) -> Vec<FeatureLabel<'g>>

Returns a vector of feature labels.

The vector is guaranteed to be sorted and unique.

Trait Implementations§

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impl<'g> Clone for FeatureList<'g>

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fn clone(&self) -> FeatureList<'g>

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl<'g> Debug for FeatureList<'g>

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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<'a, 'g> IntoIterator for &'a FeatureList<'g>

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type Item = FeatureId<'g>

The type of the elements being iterated over.
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type IntoIter = Iter<'g, 'a>

Which kind of iterator are we turning this into?
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fn into_iter(self) -> Self::IntoIter

Creates an iterator from a value. Read more
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impl<'g> IntoIterator for FeatureList<'g>

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type Item = FeatureId<'g>

The type of the elements being iterated over.
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type IntoIter = IntoIter<'g>

Which kind of iterator are we turning this into?
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fn into_iter(self) -> Self::IntoIter

Creates an iterator from a value. Read more
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impl<'g> PartialEq for FeatureList<'g>

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fn eq(&self, other: &FeatureList<'g>) -> bool

Tests for self and other values to be equal, and is used by ==.
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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<'g> Eq for FeatureList<'g>

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impl<'g> StructuralPartialEq for FeatureList<'g>

Auto Trait Implementations§

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impl<'g> Freeze for FeatureList<'g>

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impl<'g> RefUnwindSafe for FeatureList<'g>

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impl<'g> Send for FeatureList<'g>

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impl<'g> Sync for FeatureList<'g>

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impl<'g> Unpin for FeatureList<'g>

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impl<'g> UnwindSafe for FeatureList<'g>

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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default unsafe fn clone_to_uninit(&self, dst: *mut T)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. 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> 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.