Link class final

Represents a dependency relationship between two reactive nodes.

A Link connects a dependency (dep) to a subscriber (sub), forming an edge in the reactive dependency graph. Each link is part of two doubly-linked lists:

  • The dependency list of the subscriber node
  • The subscriber list of the dependency node

This dual-list structure allows for efficient traversal and modification of the dependency graph from both directions.

The version tracking ensures that stale dependencies are properly updated or removed during reactive computations.

Constructors

Link({required int version, required ReactiveNode dep, required ReactiveNode sub, Link? prevSub, Link? nextSub, Link? prevDep, Link? nextDep})

Properties

dep ↔ ReactiveNode
The dependency node (the node being depended upon). This is the source of data that the subscriber reads from.
getter/setter pair
hashCode → int
The hash code for this object.
no setterinherited
nextDep ↔ Link?
Next link in the dependency list of the subscriber node. Used for traversing all dependencies of a subscriber.
getter/setter pair
nextSub ↔ Link?
Next link in the subscriber list of the dependency node. Used for traversing all subscribers of a dependency.
getter/setter pair
prevDep ↔ Link?
Previous link in the dependency list of the subscriber node. Used for traversing all dependencies of a subscriber.
getter/setter pair
prevSub ↔ Link?
Previous link in the subscriber list of the dependency node. Used for traversing all subscribers of a dependency.
getter/setter pair
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
sub ↔ ReactiveNode
The subscriber node (the node that depends on dep). This node will be notified when dep changes.
getter/setter pair
version ↔ int
Version number for tracking staleness of this dependency relationship. Used to determine if the link is still valid or needs updating.
getter/setter pair

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