Struct PackageRegistry 

pub struct PackageRegistry { /* private fields */ }

A registry of known packages and their versions/dependencies.

This serves as the DependencyProvider for pubgrub resolution. In v1, packages are registered in-memory (from lockfiles, local dirs, etc.).

Implementations

impl PackageRegistry

pub fn new() -> Self

Create a new empty registry.

pub fn register( &mut self, name: &str, version: &str, deps: BTreeMap<String, String>, ) -> Result<(), PkgError>

Register a package version with its dependencies.

Dependencies are given as name → version_req pairs (e.g., "^1.0").

pub fn register_with_meta( &mut self, name: &str, version: &str, meta: PackageVersionMeta, ) -> Result<(), PkgError>

Register a package version with full metadata including targets and features.

pub fn available_versions(&self, name: &str) -> Vec<&Version>

List all available versions for a package.

pub fn has_package(&self, name: &str) -> bool

Check if a package exists in the registry.

pub fn resolve( &self, root_name: &str, root_version: &str, direct_deps: &BTreeMap<String, String>, ) -> Result<ResolvedDeps, PkgError>

Resolve dependencies starting from a root package with given direct dependencies.

Returns the resolved set of packages and their versions.

pub fn resolve_for_target( &self, root_name: &str, root_version: &str, direct_deps: &BTreeMap<String, String>, target: &str, ) -> Result<ResolvedDeps, PkgError>

Resolve dependencies for a specific build target.

Packages whose supported_targets don’t include target are skipped during version selection.

pub fn unify_features( &self, root_dep_features: &BTreeMap<String, Vec<String>>, resolved: &ResolvedDeps, ) -> UnifiedFeatures

Unify features requested for each dependency across the dependency graph.

When multiple paths in the dep graph request different features of the same package, the union of all requested feature sets is returned.

Trait Implementations

impl Clone for PackageRegistry

fn clone(&self) -> PackageRegistry

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PackageRegistry

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for PackageRegistry

fn default() -> PackageRegistry

Returns the “default value” for a type.