PerfInsightRules class abstract final

The rules. Stateless; evaluate is the contributor.

Properties

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

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

evaluate(Map<String, Object?> report, PerfRuleInputs inputs) → List<Map<String, Object?>>

Runs every rule against report and returns the insights that fired, in the shape dusk's contributor seam takes.

Constants

castMinPerFrame → const double

Computed attribute casts per painted frame.

httpMaxPerInteraction → const int

Requests one interaction may send.

httpMaxSameRequestPerInteraction → const int

Times one interaction may send the same request.

mediaQueryMinPerFrame → const double

MediaQuery size reads per painted frame.

notifyMinPerFrame → const double

Notifies of one cause per painted frame. Past one, the frame coalesced the rest: work done for no pixel.

parseMinMisses → const int

Parse misses a warm surface may take before the rate is judged at all.

parseMinMissRate → const double

Share of parses that missed the cache.

timerNotifyMinPerSecond → const double

Timer-driven notifies per second of session. A one-second countdown is one; a poll or debounce firing faster is the storm.

uncachedReloadsMaxPerInteraction → const int

Reloads of one model type inside one interaction that each issued their own request. The first is the fetch; a second is a refetch.

wrapperMinPerFrame → const double

...and this many times per painted frame, so a screen of three buttons does not report its three MouseRegions.

wrapperMinPerWidgetBuild → const double

A wrapper type is reported once it is emitted this many times per W-widget build...