Struct cargo::core::resolver::context::ResolverContext

pub struct ResolverContext {
    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 parents: Graph<PackageId, HashSet<Dependency>>,
}

Fields

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

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

impl ResolverContext

pub fn new() -> ResolverContext

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.

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

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

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.

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

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

Trait Implementations

impl Clone for ResolverContext

fn clone(&self) -> ResolverContext

Returns a copy of the value.

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

Performs copy-assignment from source.

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