pub struct Context {
    pub age: usize,
    pub activations: HashMap<(InternedString, SourceId, SemverCompatibility), (Summary, usize)>,
    pub resolve_features: HashMap<PackageId, Rc<BTreeSet<InternedString>>>,
    pub links: HashMap<InternedString, PackageId>,
    pub public_dependency: Option<PublicDependency>,
    pub parents: Graph<PackageId, HashSet<Dependency>>,
}

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§age: usize§activations: HashMap<(InternedString, SourceId, SemverCompatibility), (Summary, usize)>§resolve_features: HashMap<PackageId, Rc<BTreeSet<InternedString>>>

list the features that are activated for each package

§links: HashMap<InternedString, PackageId>

get the package that will be linking to a native library by its links attribute

§public_dependency: Option<PublicDependency>

for each package the list of names it can see, then for each name the exact version that name represents and whether the name is public.

§parents: Graph<PackageId, HashSet<Dependency>>

a way to look up for a package in activations what packages required it and all of the exact deps that it fulfilled.

Implementations§

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impl Context

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pub fn new(check_public_visible_dependencies: bool) -> Context

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pub fn flag_activated( &mut self, summary: &Summary, opts: &ResolveOpts, parent: Option<(&Summary, &Dependency)> ) -> ActivateResult<bool>

Activate this summary by inserting it into our list of known activations.

The parent passed in here is the parent summary/dependency edge which cased summary to get activated. This may not be present for the root crate, for example.

Returns true if this summary with the given features is already activated.

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pub fn is_active(&self, id: PackageId) -> Option<usize>

If the package is active returns the ContextAge when it was added

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pub fn still_applies( &self, id: PackageId, reason: &ConflictReason ) -> Option<usize>

If the conflict reason on the package still applies returns the ContextAge when it was added

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pub fn is_conflicting( &self, parent: Option<PackageId>, conflicting_activations: &BTreeMap<PackageId, ConflictReason> ) -> Option<usize>

Checks whether all of parent and the keys of conflicting activations are still active. If so returns the ContextAge when the newest one was added.

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pub fn resolve_replacements( &self, registry: &RegistryQueryer<'_> ) -> HashMap<PackageId, PackageId>

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pub fn graph(&self) -> Graph<PackageId, HashSet<Dependency>>

Trait Implementations§

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impl Clone for Context

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fn clone(&self) -> Context

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<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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impl<T> BorrowMut<T> for Twhere 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> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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impl<T, U> Into<U> for Twhere U: From<T>,

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fn into(self) -> U

Calls U::from(self).

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impl<T> Same<T> for T

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type Output = T

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type Owned = T

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type Error = Infallible

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Performs the conversion.
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type Error = <U as TryFrom<T>>::Error

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Layout§

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: 120 bytes