Struct JapaneseEngine 

pub struct JapaneseEngine { /* private fields */ }

JP engine wrapping the embedded romaji / jukugo / kanji tables. Cheap to construct (all data is in const tables).

Implementations

impl JapaneseEngine

pub fn new() -> JapaneseEngine

pub fn handle_letter(&mut self, byte: u8) -> bool

Push one ASCII letter byte ('a'..='z', 'A'..='Z') into the buffer and re-render candidates. The - byte is also accepted (chōonpu ー) when the buffer is non-empty.

Returns true if the byte was accepted; rejected bytes leave state unchanged so the host controller can route the byte elsewhere (locale punct mapping, raw passthrough).

pub fn backspace(&mut self) -> bool

Pop one byte off the buffer. Returns true if state changed.

pub fn escape(&mut self) -> bool

Drop the buffer entirely. Returns true if state changed.

pub fn preedit(&self) -> String

Current buffer rendered as a string (for the preedit display).

pub fn is_composing(&self) -> bool

pub fn candidates(&self) -> Array

Current candidates as a js_sys::Array of Objects. Each object carries:

• word: string
• kind: KanaKind (enum numeric value)
• freq: number (0–100, higher = more common)
• composed: boolean (true for mechanical compose_sentence products — particle/copula glue)
• proximityMilli: number (1000 = exact match, < 1000 = prefix-prediction candidate whose reading the buffer is only a prefix of, e.g. shinjuk → 新宿 at 875)

pub fn commit_index(&mut self, index: usize) -> Option<String>

Commit the candidate at index. Returns the committed text and clears the buffer. Returns null (via empty JsValue) if index is out of range; state is unchanged on out-of-range.

Trait Implementations

impl Default for JapaneseEngine

fn default() -> Self

Returns the “default value” for a type.

impl From<JapaneseEngine> for JsValue

fn from(value: JapaneseEngine) -> Self

Converts to this type from the input type.

impl FromWasmAbi for JapaneseEngine

type Abi = WasmPtr<WasmRefCell<JapaneseEngine>>

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 JapaneseEngine

type Abi = WasmPtr<WasmRefCell<JapaneseEngine>>

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 JapaneseEngine

type Abi = WasmPtr<WasmRefCell<JapaneseEngine>>

Same as RefFromWasmAbi::Abi

type Anchor = RcRef<JapaneseEngine>

Same as RefFromWasmAbi::Anchor

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

Same as RefFromWasmAbi::ref_from_abi

impl OptionFromWasmAbi for JapaneseEngine

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 JapaneseEngine

fn none() -> Self::Abi

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

impl RefFromWasmAbi for JapaneseEngine

type Abi = WasmPtr<WasmRefCell<JapaneseEngine>>

The Wasm ABI type references to Self are recovered from.

type Anchor = RcRef<JapaneseEngine>

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 JapaneseEngine

type Abi = WasmPtr<WasmRefCell<JapaneseEngine>>

Same as RefFromWasmAbi::Abi

type Anchor = RcRefMut<JapaneseEngine>

Same as RefFromWasmAbi::Anchor

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

Same as RefFromWasmAbi::ref_from_abi

impl TryFromJsValue for JapaneseEngine

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 JapaneseEngine

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

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

impl VectorIntoWasmAbi for JapaneseEngine

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

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

impl WasmDescribe for JapaneseEngine

fn describe()

impl WasmDescribeVector for JapaneseEngine

fn describe_vector()

impl SupportsConstructor for JapaneseEngine

impl SupportsInstanceProperty for JapaneseEngine

impl SupportsStaticProperty for JapaneseEngine