dart:developer

Flow class

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

id → int

final

The flow id of the flow event.

hashCode → int

read-only, inherited

The hash code for this object. [...]

runtimeType → Type

read-only, inherited

A representation of the runtime type of the object.

Methods

noSuchMethod(Invocation invocation) → dynamic

inherited

Invoked when a non-existent method or property is accessed. [...]

toString() → String

inherited

Returns a string representation of this object.

Operators

operator ==(dynamic other) → bool

inherited

The equality operator. [...]

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. [...]