pub struct VersionPreferences {
    try_to_use: HashSet<PackageId>,
    prefer_patch_deps: HashMap<InternedString, HashSet<Dependency>>,
}
Expand description

A collection of preferences for particular package versions.

This is built up with Self::prefer_package_id and Self::prefer_dependency, then used to sort the set of summaries for a package during resolution via Self::sort_summaries.

As written, a version is either “preferred” or “not preferred”. Later extensions may introduce more granular preferences.

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§try_to_use: HashSet<PackageId>§prefer_patch_deps: HashMap<InternedString, HashSet<Dependency>>

Implementations§

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impl VersionPreferences

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pub fn prefer_package_id(&mut self, pkg_id: PackageId)

Indicate that the given package (specified as a PackageId) should be preferred.

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pub fn prefer_dependency(&mut self, dep: Dependency)

Indicate that the given package (specified as a Dependency) should be preferred.

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pub fn sort_summaries( &self, summaries: &mut Vec<Summary>, version_ordering: VersionOrdering, first_version: bool )

Sort the given vector of summaries in-place, with all summaries presumed to be for the same package. Preferred versions appear first in the result, sorted by version_ordering, followed by non-preferred versions sorted the same way.

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impl Default for VersionPreferences

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fn default() -> VersionPreferences

Returns the “default value” for a type. Read more

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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fn borrow_mut(&mut self) -> &mut T

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impl<T> From<T> for T

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fn from(t: T) -> T

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fn instrument(self, span: Span) -> Instrumented<Self>

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Calls U::from(self).

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type Output = T

Should always be Self
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type Error = Infallible

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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 Twhere U: TryFrom<T>,

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

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Performs the conversion.
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Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 96 bytes