Flow class final

A class to represent Flow events.

Flow objects are used to thread flow events between timeline slices, for example, those created with the Timeline class below. Adding Flow objects cause arrows to be drawn between slices in Chrome's trace viewer. The arrows start at e.g Timeline events that are passed a Flow.begin object, go through Timeline events that are passed a Flow.step object, and end at Timeline events that are passed a Flow.end object, all having the same Flow.id. For example:

var flow = Flow.begin();
Timeline.timeSync('flow_test', () {
  doSomething();
}, flow: flow);

Timeline.timeSync('flow_test', () {
  doSomething();
}, flow: Flow.step(flow.id));

Timeline.timeSync('flow_test', () {
  doSomething();
}, flow: Flow.end(flow.id));

Properties

hashCode → int
The hash code for this object.
read-onlyinherited
id → int
The flow id of the flow event.
final
runtimeType → Type
A representation of the runtime type of the object.
read-onlyinherited

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

Static Methods

begin({int? id}) → Flow
A "begin" Flow event.
end(int id) → Flow
An "end" Flow event.
step(int id) → Flow
A "step" Flow event.