## ResolverContext

# Struct ResolverContext

Source

    pub struct ResolverContext {
        pub age: usize,
        pub activations: HashMap<ActivationsKey, (Summary, usize), FxBuildHasher>,
        pub resolve_features: HashMap<PackageId, Rc<BTreeSet<InternedString>>, FxBuildHasher>,
        pub links: HashMap<InternedString, PackageId, FxBuildHasher>,
        pub parents: Graph<PackageId, HashSet<Dependency, FxBuildHasher>>,
    }

## Fields§

§`age: usize`§`activations: HashMap<ActivationsKey, (Summary, usize), FxBuildHasher>`§`resolve_features: HashMap<PackageId, Rc<BTreeSet<InternedString>>, FxBuildHasher>`

list the features that are activated for each package

§`links: HashMap<InternedString, PackageId, FxBuildHasher>`

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

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

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

## Implementations§

Source§

### impl ResolverContext

Source

#### pub fn new() -> ResolverContext

Source

#### 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.

Source

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

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

Source

#### 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.

Source

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

Source

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

## Trait Implementations§

Source§

### impl Clone for ResolverContext

Source§

#### fn clone(&self) -> ResolverContext

Returns a duplicate of the value. Read more
1.0.0 · Source§

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

Performs copy-assignment from `source`. Read more

## Auto Trait Implementations§

§

### impl Freeze for ResolverContext

§

### impl RefUnwindSafe for ResolverContext

§

### impl !Send for ResolverContext

§

### impl !Sync for ResolverContext

§

### impl Unpin for ResolverContext

§

### impl UnwindSafe for ResolverContext

## Blanket Implementations§

Source§

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

Source§

#### fn type_id(&self) -> TypeId

Gets the `TypeId` of `self`. Read more
Source§

### impl<T> Borrow<T> for T
where T: ?Sized,

Source§

#### fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
Source§

### impl<T> BorrowMut<T> for T
where T: ?Sized,

Source§

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

Mutably borrows from an owned value. Read more
Source§

### impl<T> CloneToUninit for T
where T: Clone,

Source§

#### 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
Source§

### impl<T> From<T> for T

Source§

#### fn from(t: T) -> T

Returns the argument unchanged.

§

### impl<T> Instrument for T

§

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

Instruments this type with the provided [`Span`], returning an `Instrumented` wrapper. Read more
§

#### fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current `Span`, returning an `Instrumented` wrapper. Read more
Source§

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

Source§

#### fn into(self) -> U

Calls `U::from(self)`.

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

Source§

### impl<T> IntoEither for T

Source§

#### fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts `self` into a `Left` variant of `Either<Self, Self>` if `into_left` is `true`. Converts `self` into a `Right` variant of `Either<Self, Self>` otherwise. Read more
Source§

#### fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts `self` into a `Left` variant of `Either<Self, Self>` if `into_left(&self)` returns `true`. Converts `self` into a `Right` variant of `Either<Self, Self>` otherwise. Read more
§

### impl<T> Pointable for T

§

#### const ALIGN: usize

The alignment of pointer.
§

#### type Init = T

The type for initializers.
§

#### unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
§

#### unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
§

#### unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
§

#### unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
Source§

### impl<T> Same for T

Source§

#### type Output = T

Should always be `Self`
Source§

### impl<T> ToOwned for T
where T: Clone,

Source§

#### type Owned = T

The resulting type after obtaining ownership.
Source§

#### fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
Source§

#### fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
Source§

### impl<T, U> TryFrom<U> for T
where U: Into<T>,

Source§

#### type Error = Infallible

The type returned in the event of a conversion error.
Source§

#### fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
Source§

### impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

Source§

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

The type returned in the event of a conversion error.
Source§

#### fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
§

### impl<V, T> VZip<V> for T
where V: MultiLane<T>,

§

#### fn vzip(self) -> V

§

### impl<T> WithSubscriber for T

§

#### fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided `Subscriber` to this type, returning a [`WithDispatch`] wrapper. Read more
§

#### fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default `Subscriber` to this type, returning a [`WithDispatch`] wrapper. Read more

## 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: 96 bytes