Struct guppy::graph::feature::FeatureQuery [−][src]
A query over a feature graph.
A FeatureQuery is the entry point for Cargo resolution, and also provides iterators over
feature IDs and links. This struct is constructed through the query_ methods on
FeatureGraph, or through PackageQuery::to_feature_query.
Implementations
impl<'g> FeatureQuery<'g>[src]
pub fn graph(&self) -> &FeatureGraph<'g>[src]
Returns the feature graph the query is going to be executed on.
pub fn direction(&self) -> DependencyDirection[src]
Returns the direction the query is happening in.
pub fn initials<'a>(
&'a self
) -> impl Iterator<Item = FeatureMetadata<'g>> + ExactSizeIterator + 'a[src]
&'a self
) -> impl Iterator<Item = FeatureMetadata<'g>> + ExactSizeIterator + 'a
Returns the list of initial features specified in the query.
The order of features is unspecified.
pub fn initial_packages<'a>(
&'a self
) -> impl Iterator<Item = PackageMetadata<'g>> + 'a[src]
&'a self
) -> impl Iterator<Item = PackageMetadata<'g>> + 'a
Returns the list of initial packages specified in the query.
The order of packages is unspecified.
pub fn starts_from_package(&self, package_id: &PackageId) -> Result<bool, Error>[src]
Returns true if the query starts from the given package.
Returns an error if the package ID is unknown.
pub fn starts_from<'a>(
&self,
feature_id: impl Into<FeatureId<'a>>
) -> Result<bool, Error>[src]
&self,
feature_id: impl Into<FeatureId<'a>>
) -> Result<bool, Error>
Returns true if the query starts from the given feature ID.
Returns an error if this feature ID is unknown.
pub fn resolve(self) -> FeatureSet<'g>[src]
Resolves this query into a set of known feature IDs.
This is the entry point for iterators.
pub fn resolve_with(self, resolver: impl FeatureResolver<'g>) -> FeatureSet<'g>[src]
Resolves this query into a set of known feature IDs, using the provided resolver to determine which links are followed.
pub fn resolve_with_fn(
self,
resolver_fn: impl FnMut(&FeatureQuery<'g>, CrossLink<'g>) -> bool
) -> FeatureSet<'g>[src]
self,
resolver_fn: impl FnMut(&FeatureQuery<'g>, CrossLink<'g>) -> bool
) -> FeatureSet<'g>
Resolves this query into a set of known feature IDs, using the provided resolver function to determine which links are followed.
Trait Implementations
impl<'g> Clone for FeatureQuery<'g>[src]
fn clone(&self) -> FeatureQuery<'g>[src]
pub fn clone_from(&mut self, source: &Self)1.0.0[src]
impl<'g> Debug for FeatureQuery<'g>[src]
Auto Trait Implementations
impl<'g> RefUnwindSafe for FeatureQuery<'g>
impl<'g> Send for FeatureQuery<'g>
impl<'g> Sync for FeatureQuery<'g>
impl<'g> Unpin for FeatureQuery<'g>
impl<'g> UnwindSafe for FeatureQuery<'g>
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized, [src]
T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized, [src]
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized, [src]
T: ?Sized,
pub fn borrow_mut(&mut self) -> &mut T[src]
impl<'a, T> DefaultFeatures<'a> for T where
T: 'a + Clone + Send + Sync, [src]
T: 'a + Clone + Send + Sync,
pub fn clone_boxed(&self) -> Box<dyn DefaultFeatures<'a> + 'a, Global>[src]
pub fn self_address_mut(&mut self) -> *mut ()[src]
impl<T> From<T> for T[src]
impl<T, U> Into<U> for T where
U: From<T>, [src]
U: From<T>,
impl<'a, T> NonSyncFeatures<'a> for T where
T: 'a + Clone, [src]
T: 'a + Clone,
pub fn clone_boxed(&self) -> Box<dyn NonSyncFeatures<'a> + 'a, Global>[src]
pub fn self_address_mut(&mut self) -> *mut ()[src]
impl<T> Pointable for T
pub const ALIGN: usize
type Init = T
The type for initializers.
pub unsafe fn init(init: <T as Pointable>::Init) -> usize
pub unsafe fn deref<'a>(ptr: usize) -> &'a T
pub unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T
pub unsafe fn drop(ptr: usize)
impl<T> SafeBorrow<T> for T where
T: ?Sized, [src]
T: ?Sized,
pub fn borrow_replacement(ptr: &T) -> &T[src]
impl<T> ToOwned for T where
T: Clone, [src]
T: Clone,
type Owned = T
The resulting type after obtaining ownership.
pub fn to_owned(&self) -> T[src]
pub fn clone_into(&self, target: &mut T)[src]
impl<T, U> TryFrom<U> for T where
U: Into<T>, [src]
U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>[src]
impl<T, U> TryInto<U> for T where
U: TryFrom<T>, [src]
U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error
The type returned in the event of a conversion error.
pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>[src]
impl<V, T> VZip<V> for T where
V: MultiLane<T>,
V: MultiLane<T>,