Scope class

Creates a Scope providing dependency injection to your call stack.

Scopes may be nested with the nearest Scope overriding parent scopes.

Constructors

Scope([String? debugName])

Create a Scope that allows you to inject values.

Properties

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

Methods

factory<T>(ScopeKey<T> key, T factory()) → void

Use single.

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

run<R>(R action()) → R

Runs action within the defined Scope.

sequence<T>(ScopeKey<T> key, T factory()) → void

Injects a generated value into the Scope.

single<T>(ScopeKey<T> key, T factory()) → void

Injects a single value into the Scope.

toString() → String

A string representation of this object.

override

value<T>(ScopeKey<T> key, T value) → void

Injects value into the Scope.

Operators

operator ==(Object other) → bool

The equality operator.

inherited

Static Methods

hasScopeKey<T>(ScopeKey<T> key) → bool

Returns true if key is contained within the current Scope or an ancestor Scope

hasScopeValue<T>(ScopeKey<T> key) → bool

Returns true if key is contained within the current scope or an ancestor Scope or if the key has a default value.

isWithinScope() → bool

Returns true if the caller is running within a Scope

use<T>(ScopeKey<T> key, {T withDefault()?}) → T

Returns the value provided for key, or the keys default value if no value was provided.