Struct cargo::core::resolver::dep_cache::RegistryQueryer

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pub struct RegistryQueryer<'a> {
    pub registry: &'a mut (dyn Registry + 'a),
    replacements: &'a [(PackageIdSpec, Dependency)],
    version_prefs: &'a VersionPreferences,
    registry_cache: HashMap<(Dependency, Option<VersionOrdering>), Poll<Rc<Vec<Summary>>>>,
    summary_cache: HashMap<(Option<PackageId>, Summary, ResolveOpts), (Rc<(HashSet<InternedString>, Rc<Vec<(Dependency, Rc<Vec<Summary>>, Rc<BTreeSet<InternedString>>)>>)>, bool)>,
    used_replacements: HashMap<PackageId, Summary>,
}

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§registry: &'a mut (dyn Registry + 'a)§replacements: &'a [(PackageIdSpec, Dependency)]§version_prefs: &'a VersionPreferences§registry_cache: HashMap<(Dependency, Option<VersionOrdering>), Poll<Rc<Vec<Summary>>>>

a cache of Candidates that fulfil a Dependency (and whether first_version)

§summary_cache: HashMap<(Option<PackageId>, Summary, ResolveOpts), (Rc<(HashSet<InternedString>, Rc<Vec<(Dependency, Rc<Vec<Summary>>, Rc<BTreeSet<InternedString>>)>>)>, bool)>

a cache of Dependencys that are required for a Summary

HACK: first_version is not kept in the cache key is it is 1:1 with parent.is_none() (the first element of the cache key) as it doesn’t change through execution.

§used_replacements: HashMap<PackageId, Summary>

all the cases we ended up using a supplied replacement

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impl<'a> RegistryQueryer<'a>

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pub fn new( registry: &'a mut dyn Registry, replacements: &'a [(PackageIdSpec, Dependency)], version_prefs: &'a VersionPreferences, ) -> Self

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pub fn reset_pending(&mut self) -> bool

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pub fn used_replacement_for( &self, p: PackageId, ) -> Option<(PackageId, PackageId)>

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pub fn replacement_summary(&self, p: PackageId) -> Option<&Summary>

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pub fn query( &mut self, dep: &Dependency, first_version: Option<VersionOrdering>, ) -> Poll<CargoResult<Rc<Vec<Summary>>>>

Queries the registry to return a list of candidates for dep.

This method is the location where overrides are taken into account. If any candidates are returned which match an override then the override is applied by performing a second query for what the override should return.

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pub fn build_deps( &mut self, cx: &ResolverContext, parent: Option<PackageId>, candidate: &Summary, opts: &ResolveOpts, first_version: Option<VersionOrdering>, ) -> ActivateResult<Rc<(HashSet<InternedString>, Rc<Vec<(Dependency, Rc<Vec<Summary>>, Rc<BTreeSet<InternedString>>)>>)>>

Find out what dependencies will be added by activating candidate, with features described in opts. Then look up in the registry the candidates that will fulfil each of these dependencies, as it is the next obvious question.

Auto Trait Implementations§

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impl<'a> Freeze for RegistryQueryer<'a>

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impl<'a> !RefUnwindSafe for RegistryQueryer<'a>

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impl<'a> !Send for RegistryQueryer<'a>

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impl<'a> !Sync for RegistryQueryer<'a>

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impl<'a> Unpin for RegistryQueryer<'a>

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impl<'a> !UnwindSafe for RegistryQueryer<'a>

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Size: 184 bytes