Struct Engine 

pub struct Engine { /* private fields */ }

A compiled decision engine. WASM is single-threaded, so the core engine is held directly (no Arc/lock); trainJson takes &mut self.

Implementations

impl Engine

pub fn new(options_json: &str) -> Result<Engine, JsValue>

optionsJson: {"embedder":"hash","dims":256}. The onnx arm ({"embedder":{"kind":"onnx",...}}) needs model bytes, so it is rejected here — use Engine.fromBytes instead.

pub fn from_bytes( options_json: &str, model_bytes: &[u8], tokenizer_bytes: &[u8], ) -> Result<Engine, JsValue>

Construct an onnx-backed engine (tract) from in-memory model + tokenizer bytes. optionsJson carries the model manifest (a JSON string or an inline object). Requires the wasm-onnx build feature; otherwise returns the documented embedder error JSON as the thrown value. Throws on a hash mismatch or a model tract cannot load (fail closed, ADR-005).

pub fn decide_json(&self, request_json: &str) -> String

Returns a DecisionResponse JSON, or the documented error JSON.

pub fn train_json(&mut self, train_json: &str) -> String

Returns a TrainReport JSON, or the documented error JSON.

pub fn stats_json(&self) -> String

{"embedderId","dims","examples","promotable"} from the bank summary.

pub fn optimize_json(&self, campaign_json: &str) -> String

Run an optimize campaign (ADR-004). campaignJson is a CampaignSpec; returns a CampaignReport JSON or the documented error JSON.

pub fn export_bank_json(&self) -> String

Full-fidelity bank JSON (the user’s own examples), or the error JSON.

pub fn import_bank_json(&mut self, bank_json: &str) -> String

Replace the bank from JSON (re-embeds every stored text). Returns {"ok":true} or the documented error JSON.

Trait Implementations

impl From<Engine> for JsValue

fn from(value: Engine) -> Self

Converts to this type from the input type.

impl FromWasmAbi for Engine

type Abi = WasmPtr<WasmRefCell<Engine>>

The Wasm ABI type that this converts from when coming back out from the ABI boundary.

unsafe fn from_abi(js: Self::Abi) -> Self

Recover a Self from Self::Abi.

impl IntoWasmAbi for Engine

type Abi = WasmPtr<WasmRefCell<Engine>>

The Wasm ABI type that this converts into when crossing the ABI boundary.

fn into_abi(self) -> Self::Abi

Convert self into Self::Abi so that it can be sent across the wasm ABI boundary.

impl LongRefFromWasmAbi for Engine

type Abi = WasmPtr<WasmRefCell<Engine>>

Same as RefFromWasmAbi::Abi

type Anchor = RcRef<Engine>

Same as RefFromWasmAbi::Anchor

unsafe fn long_ref_from_abi(js: Self::Abi) -> Self::Anchor

Same as RefFromWasmAbi::ref_from_abi

impl OptionFromWasmAbi for Engine

fn is_none(abi: &Self::Abi) -> bool

Tests whether the argument is a “none” instance. If so it will be deserialized as None, and otherwise it will be passed to FromWasmAbi.

impl OptionIntoWasmAbi for Engine

fn none() -> Self::Abi

Returns an ABI instance indicating “none”, which JS will interpret as the None branch of this option.

impl RefFromWasmAbi for Engine

type Abi = WasmPtr<WasmRefCell<Engine>>

The Wasm ABI type references to Self are recovered from.

type Anchor = RcRef<Engine>

The type that holds the reference to Self for the duration of the invocation of the function that has an &Self parameter. This is required to ensure that the lifetimes don’t persist beyond one function call, and so that they remain anonymous.

unsafe fn ref_from_abi(js: Self::Abi) -> Self::Anchor

Recover a Self::Anchor from Self::Abi.

impl RefMutFromWasmAbi for Engine

type Abi = WasmPtr<WasmRefCell<Engine>>

Same as RefFromWasmAbi::Abi

type Anchor = RcRefMut<Engine>

Same as RefFromWasmAbi::Anchor

unsafe fn ref_mut_from_abi(js: Self::Abi) -> Self::Anchor

Same as RefFromWasmAbi::ref_from_abi

impl SupportsConstructor for Engine

impl SupportsInstanceProperty for Engine

impl SupportsStaticProperty for Engine

impl TryFromJsValue for Engine

fn try_from_js_value(value: JsValue) -> Result<Self, JsValue>

Performs the conversion.

fn try_from_js_value_ref(value: &JsValue) -> Option<Self>

Performs the conversion.

impl VectorFromWasmAbi for Engine

type Abi = <Box<[JsValue]> as FromWasmAbi>::Abi

unsafe fn vector_from_abi(js: Self::Abi) -> Box<[Engine]>

impl VectorIntoWasmAbi for Engine

type Abi = <Box<[JsValue]> as IntoWasmAbi>::Abi

fn vector_into_abi(vector: Box<[Engine]>) -> Self::Abi

impl WasmDescribe for Engine

fn describe()

impl WasmDescribeVector for Engine

fn describe_vector()