dart:async

ZoneSpecification abstract class

This class provides the specification for a forked zone.

When forking a new zone (see Zone.fork) one can override the default behavior of the zone by providing callbacks. These callbacks must be given in an instance of this class.

Handlers have the same signature as the same-named methods on Zone but receive three additional arguments:

1. the zone the handlers are attached to (the "self" zone).
2. a ZoneDelegate to the parent zone.
3. the zone that first received the request (before the request was bubbled up).

Handlers can either stop propagation the request (by simply not calling the parent handler), or forward to the parent zone, potentially modifying the arguments on the way.

Constructors

ZoneSpecification({HandleUncaughtErrorHandler handleUncaughtError, RunHandler run, RunUnaryHandler runUnary, RunBinaryHandler runBinary, RegisterCallbackHandler registerCallback, RegisterUnaryCallbackHandler registerUnaryCallback, RegisterBinaryCallbackHandler registerBinaryCallback, ErrorCallbackHandler errorCallback, ScheduleMicrotaskHandler scheduleMicrotask, CreateTimerHandler createTimer, CreatePeriodicTimerHandler createPeriodicTimer, PrintHandler print, ForkHandler fork })

const

factory

Creates a specification with the provided handlers.

ZoneSpecification.from(ZoneSpecification other, { HandleUncaughtErrorHandler handleUncaughtError: null, RunHandler run: null, RunUnaryHandler runUnary: null, RunBinaryHandler runBinary: null, RegisterCallbackHandler registerCallback: null, RegisterUnaryCallbackHandler registerUnaryCallback: null, RegisterBinaryCallbackHandler registerBinaryCallback: null, ErrorCallbackHandler errorCallback: null, ScheduleMicrotaskHandler scheduleMicrotask: null, CreateTimerHandler createTimer: null, CreatePeriodicTimerHandler createPeriodicTimer: null, PrintHandler print: null, ForkHandler fork: null })

factory

Creates a specification from other with the provided handlers overriding the ones in other.

Properties

createPeriodicTimer → CreatePeriodicTimerHandler

read-only

createTimer → CreateTimerHandler

read-only

errorCallback → ErrorCallbackHandler

read-only

fork → ForkHandler

read-only

handleUncaughtError → HandleUncaughtErrorHandler

read-only

print → PrintHandler

read-only

registerBinaryCallback → RegisterBinaryCallbackHandler

read-only

registerCallback → RegisterCallbackHandler

read-only

registerUnaryCallback → RegisterUnaryCallbackHandler

read-only

run → RunHandler

read-only

runBinary → RunBinaryHandler

read-only

runUnary → RunUnaryHandler

read-only

scheduleMicrotask → ScheduleMicrotaskHandler

read-only

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.

Operators

operator ==(other) → bool

inherited

The equality operator.

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.