EmbeddingPassDescriptor<C extends Object> class final

Everything core needs to build an engine's EmbeddingPass, with the engine's own configuration C opaque to core (D2): a new engine knob never needs a core release.

On native the descriptor crosses to the worker isolate, so config must be sendable within the isolate group (no Pointer, no ReceivePort, no open handle), and the factory must be a top-level or static function — a tear-off, never a closure over local state. build is the only way core uses the factory; it stays private so a supertype view (EmbeddingPassDescriptor<Object>) never reads a contravariant field.

Constructors

EmbeddingPassDescriptor({required String engineTag, required EmbeddingPass factory(C config), required C config, required PreferredBackend? activeBackend})

const

Properties

activeBackend → PreferredBackend?

The backend the pass really runs on, surfaced as EmbeddingModel.activeBackend. Null means "unknown" — never read it as CPU.

final

config → C

The engine's configuration, handed to the factory.

final

engineTag → String

The engine's name in messages and errors, e.g. LiteRT.

final

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

build() → EmbeddingPass

Builds the pass. Core calls this once, on the isolate that will run it.

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