Factory 3.0.0 in develop branch

[hmlongco]

A Factory 3.0.0 pre-release is now in the develop branch. It's been checked on Xcode 26 and Swift 6.2.

Note that there are breaking changes between 3.0.0 and 2.5.0.

Mostly they're for the better.

FactoryKit

As mentioned in 2.5.0, the Factory library has been removed. Projects must import FactoryKit.

Other Changes

• Redefine factory closures to avoid isolation issues in Swift 6.1 and 6.2
• Explicitly mark many of Factory's structures as nonisolated for Swift 6.2
• Refactor circular dependency checking mechanism to dramatically improve performance
• Replaces dependencyChainTestMax value with circularDependencyTesting flag
• Refactor trace mechanism to better work with circular dependency checks
• Returns to ObjectIdentifier for keys (multi-module key issues seem to be due to multiple copies of Factory)

Macros

I'm still testing possible addition of Swift macros, but at this point in time I'm starting to believe too many limitations may exist in Swift 6.2's implementation. Don't count on them.

MainActor

Other than the FactoryKit change, the other breaking change could be in factories that defined services or other types that relied on @mainactor.

Solution? Simply add @MainActor to the definition.

extension Container {
    @MainActor
    var mainActorType: Factory<MyMainActorType> {
        self { MyMainActorService() }
    }
}

Prior versions of Factory required the following, rather ugly definition.

extension Container {
    @MainActor
    var mainActorType: Factory<MyMainActorType> {
        self { @MainActor in MyMainActorService() }
    }
}

Sorry about that.

[hmlongco]

FWIW I suspect that macros will NOT be part of the release. Swift has issues with defining actor context in a macro, which means that you'd be unable to create definitions of objects that require @mainactor or other actors.