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Changelog

7.0.0

Breaking changes

  • Multi-interface services: factory() now takes provide as an array of IIDs. A single-interface service must use provide: [MY_IID] (previously provide: MY_IID).
  • onLoad callback signature: now receives an array of IIDs — (iids, container) instead of (iid, container).
  • ServiceFactory shape: the interface property is replaced by provide: InterfaceId[]. The loaded value is a single object that must satisfy every provided interface.

Features

  • A single factory can now provide multiple interfaces; the load result is typed as the intersection of all provided IID types (e.g. Adder & Multiplier) via the new FactoryLoadResult type.
  • Async multi-interface factories share one load promise across all their IIDs, so the load runs only once even when several interfaces are fetched.

Fixes

  • Invalid service registrations (not created via factory() or bundle()) now throw an AsimoError at container creation.

6.0.0

Full rewrite of the asimo library. ~2KB gzipped, zero dependencies.

Core

  • Complete TypeScript rewrite with verbatimModuleSyntax and strict mode
  • Container replaces IoCContainer with improved generics and default Container<never> when no dependencies are defined
  • Compile-time dependency validation via branded error types (ServiceDependencyNotRegistered, RetryNotSupportedForSyncIID)
  • Phantom-based type invariance ensures correct IID tracking through the container hierarchy

Features

  • Lazy bundle loading (bundle()): on-demand async service groups with deduplication, circular detection, and scope filtering
  • Retry with exponential backoff: configurable per-factory, per-bundle, or per-container via config.maxRetries / config.retryDelayMs
  • inspect() / dump() / entries(): runtime introspection with 'loaded' | 'registered' | 'pending' status per service
  • has(): check if an IID is available in the container hierarchy
  • onLoad / onError callbacks: per-container lifecycle hooks on AsimoConfig
  • Parent containers: frozen hierarchy with immutable parents array, child-over-parent shadowing
  • Container name & services validation: prevents slashes in names and non-array services at creation time

Errors

  • AsimoError with container path on every throw
  • AsimoLoadError extends AsimoError with cause for retry exhaustion

Size

  • ESM: 5.1 kB minified / 1.9 kB gzipped
  • UMD: 5.4 kB minified / 2.0 kB gzipped