Provider<T extends Object> class

Describes at compile-time how an Injector should be configured.

Loosely put, a Provider is a binding between a token (commonly either a Type or OpaqueToken), and an implementation that is provided either by invoking a constructor, a factory function, or referring to a literal value.

NOTE: The fields in this class are soft deprecated, and should not be inspected or accessed at runtime. Future implementations may optimize by removing them entirely.

Implementers

• ClassProvider
• ExistingProvider
• FactoryProvider
• ValueProvider

Annotations

• @optionalTypeArgs

Constructors

Provider(Object token, {Type? useClass, Object useValue, Object? useExisting, Function? useFactory, List<Object>? deps})

Configures a Provider based on the arguments provided.

const

factory

Properties

deps → List<Object>?

Optional; dependencies to inject and provide when invoking useFactory.

final

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

token → Object

Key used for injection, commonly a Type or OpaqueToken.

final

useClass → Type?

Class whose constructor should be invoked when token is injected.

final

useExisting → Object?

An existing token to redirect to when token is injected.

final

useFactory → Function?

A factory function to invoke when token is injected.

final

useValue → Object

Constant value to use when token is injected.

final

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited