dart:developer

TimelineTask class

An asynchronous task on the timeline. An asynchronous task can have many (nested) synchronous operations. Synchronous operations can live longer than the current isolate event. To pass a TimelineTask to another isolate, you must first call pass to get the task id and then construct a new TimelineTask in the other isolate.

Constructors

TimelineTask({TimelineTask? parent, String? filterKey})

Create a task. The task ID will be set by the system.

TimelineTask.withTaskId(int taskId, {String? filterKey})

Create a task with an explicit taskId. This is useful if you are passing a task from one isolate to another.

Properties

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

finish({Map? arguments}) → void

Finish the last synchronous operation that was started. Optionally takes a Map of arguments.

instant(String name, {Map? arguments}) → void

Emit an instant event for this task. Optionally takes a Map of arguments.

noSuchMethod(Invocation invocation) → dynamic

inherited

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

pass() → int

Retrieve the TimelineTask's task id. Will throw an exception if the stack is not empty.

start(String name, {Map? arguments}) → void

Start a synchronous operation within this task named name. Optionally takes a Map of arguments.

toString() → String

inherited

A string representation of this object.

Operators

operator ==(Object other) → bool

inherited

The equality operator.