Struct cargo::core::registry::LockedPatchDependency

pub struct LockedPatchDependency {
    pub dependency: Dependency,
    pub package_id: PackageId,
    pub alt_package_id: Option<PackageId>,
}

Argument to PackageRegistry::patch which is information about a [patch] directive that we found in a lockfile, if present.

Fields

dependency: Dependency

The original Dependency directive, except “locked” so it’s version requirement is =foo and its SourceId has a “precise” listed.

package_id: PackageId

The PackageId that was previously found in a lock file which dependency matches.

alt_package_id: Option<PackageId>

Something only used for backwards compatibility with the v2 lock file format where branch=master is considered the same as DefaultBranch. For more comments on this see the code in ops/resolve.rs.