DryIoc is fast, small, full-featured IoC Container for .NET
- Designed for low-ceremony use, performance, and extensibility.
- MIT License
- Supported platforms:
- .NET 3.5+, PCL Profiles 259, 328
- .Net Core via Net Standard 1.0
Version 3 Preview 3 is out, check it out and read the Release Notes
Latest stable DryIoc version is 2.12.6
- How to contribute
- You may also check two original parts of DryIoc and now a standalone projects: FastExpressionCompiler and ImTools.
- General use-cases optimized for max speed.
- Memory footprint preserved as small as possible.
- No dependencies on the other libraries.
- Public API is fully documented.
- Unit-test suite with ~950 tests.
- Thread-safe and lock-free registrations and resolutions may happen in parallel without corrupting container state.
- Detects recursive dependencies aka cycles in object graph.
- Throws exceptions as early as possible. Exception provides meaningful information about problem and context.
- Provides diagnostics for potential resolution problems via
- Register interface/type mapping, additionally supported: registering service once, registration update, removing registration.
- Register user-defined delegate factory and register existing instance.
- Register implementation types from provided assemblies with automatically determined service types.
- Register with service key of arbitrary type, or register multiple non-keyed services.
- Register with resolution condition.
- Register with associated metadata object of arbitrary type.
- Resolve and ResolveMany.
- Unknown service resolution via
- Optional automatic concrete types resolution
- Instance lifetime control or Reuse in DryIoc terms:
- Nested disposable scopes, ambient scope context.
- Supported out-of-the-box:
InCurrentNamedScope. Plus you can define your own.
useParentReuseoption for injected dependencies
- Control reused objects behavior with
- Extensive Open-generics support without special syntax: supported constraints, variance, complex nested generic definitions
- Constructor, property and field injection.
- Static or instance factory methods in addition to constructor. Factory methods support parameter injection the same way as constructors.
- Injecting properties and fields into existing object.
- Creating concrete object without registering it in Container but with injecting its parameters, properties, and fields.
- Generic wrappers:
- Service collections:
KeyValuePair<TKey, T>, and user-defined wrappers.
- Currying over constructor (or factory method) arguments:
Func<TArg1, TArg2, T>, etc.
- Nested wrappers: e.g.
- Service collections:
- Composite pattern: Composite itself is excluded from result collection.
- Decorator pattern.
- Extends MEF attributes to cover DryIoc features: metadata, advanced reuses, context based registration, decorators, etc.
- Does not depend on DryIoc and may be used by other IoC libraries.
Slim IoC Container based on service factory delegates generated at compile-time by DryIoc.
- Does not depend on DryIoc at run-time.
- Ensures zero application bootstrapping time associated with IoC registrations.
- Provides verification of DryIoc registration setup at compile-time by generating service factory delegates. Basically you can see how DryIoc is creating things.
- Supports everything registered in DryIoc: reuses, decorators, wrappers, etc.
- Much smaller and simpler than DryIoc itself. Works standalone without any run-time dependencies.
- Allows run-time registrations too. You may register instances and delegates at run-time.