tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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GraphemeClusterSegmenter.mjs (4553B)

      1 // generated by diplomat-tool
      2 import { DataError } from "./DataError.mjs"
      3 import { DataProvider } from "./DataProvider.mjs"
      4 import { GraphemeClusterBreakIteratorUtf16 } from "./GraphemeClusterBreakIteratorUtf16.mjs"
      5 import wasm from "./diplomat-wasm.mjs";
      6 import * as diplomatRuntime from "./diplomat-runtime.mjs";
      7 
      8 
      9 /**
     10 * An ICU4X grapheme-cluster-break segmenter, capable of finding grapheme cluster breakpoints
     11 * in strings.
     12 *
     13 * See the [Rust documentation for `GraphemeClusterSegmenter`](https://docs.rs/icu/latest/icu/segmenter/struct.GraphemeClusterSegmenter.html) for more information.
     14 */
     15 const GraphemeClusterSegmenter_box_destroy_registry = new FinalizationRegistry((ptr) => {
     16    wasm.icu4x_GraphemeClusterSegmenter_destroy_mv1(ptr);
     17 });
     18 
     19 export class GraphemeClusterSegmenter {
     20    // Internal ptr reference:
     21    #ptr = null;
     22 
     23    // Lifetimes are only to keep dependencies alive.
     24    // Since JS won't garbage collect until there are no incoming edges.
     25    #selfEdge = [];
     26 
     27    #internalConstructor(symbol, ptr, selfEdge) {
     28        if (symbol !== diplomatRuntime.internalConstructor) {
     29            console.error("GraphemeClusterSegmenter is an Opaque type. You cannot call its constructor.");
     30            return;
     31        }
     32        this.#ptr = ptr;
     33        this.#selfEdge = selfEdge;
     34 
     35        // Are we being borrowed? If not, we can register.
     36        if (this.#selfEdge.length === 0) {
     37            GraphemeClusterSegmenter_box_destroy_registry.register(this, this.#ptr);
     38        }
     39 
     40        return this;
     41    }
     42    get ffiValue() {
     43        return this.#ptr;
     44    }
     45 
     46 
     47    /**
     48     * Construct an [`GraphemeClusterSegmenter`] using compiled data.
     49     *
     50     * See the [Rust documentation for `new`](https://docs.rs/icu/latest/icu/segmenter/struct.GraphemeClusterSegmenter.html#method.new) for more information.
     51     */
     52    #defaultConstructor() {
     53 
     54        const result = wasm.icu4x_GraphemeClusterSegmenter_create_mv1();
     55 
     56        try {
     57            return new GraphemeClusterSegmenter(diplomatRuntime.internalConstructor, result, []);
     58        }
     59 
     60        finally {
     61        }
     62    }
     63 
     64    /**
     65     * Construct an [`GraphemeClusterSegmenter`].
     66     *
     67     * See the [Rust documentation for `new`](https://docs.rs/icu/latest/icu/segmenter/struct.GraphemeClusterSegmenter.html#method.new) for more information.
     68     */
     69    static createWithProvider(provider) {
     70        const diplomatReceive = new diplomatRuntime.DiplomatReceiveBuf(wasm, 5, 4, true);
     71 
     72 
     73        const result = wasm.icu4x_GraphemeClusterSegmenter_create_with_provider_mv1(diplomatReceive.buffer, provider.ffiValue);
     74 
     75        try {
     76            if (!diplomatReceive.resultFlag) {
     77                const cause = new DataError(diplomatRuntime.internalConstructor, diplomatRuntime.enumDiscriminant(wasm, diplomatReceive.buffer));
     78                throw new globalThis.Error('DataError: ' + cause.value, { cause });
     79            }
     80            return new GraphemeClusterSegmenter(diplomatRuntime.internalConstructor, diplomatRuntime.ptrRead(wasm, diplomatReceive.buffer), []);
     81        }
     82 
     83        finally {
     84            diplomatReceive.free();
     85        }
     86    }
     87 
     88    /**
     89     * Segments a string.
     90     *
     91     * Ill-formed input is treated as if errors had been replaced with REPLACEMENT CHARACTERs according
     92     * to the WHATWG Encoding Standard.
     93     *
     94     * See the [Rust documentation for `segment_utf16`](https://docs.rs/icu/latest/icu/segmenter/struct.GraphemeClusterSegmenterBorrowed.html#method.segment_utf16) for more information.
     95     */
     96    segment(input) {
     97        let functionGarbageCollectorGrip = new diplomatRuntime.GarbageCollectorGrip();
     98        const inputSlice = diplomatRuntime.DiplomatBuf.str16(wasm, input);
     99        // This lifetime edge depends on lifetimes 'a
    100        let aEdges = [this, inputSlice];
    101 
    102 
    103        const result = wasm.icu4x_GraphemeClusterSegmenter_segment_utf16_mv1(this.ffiValue, ...inputSlice.splat());
    104 
    105        try {
    106            return new GraphemeClusterBreakIteratorUtf16(diplomatRuntime.internalConstructor, result, [], aEdges);
    107        }
    108 
    109        finally {
    110            functionGarbageCollectorGrip.releaseToGarbageCollector();
    111 
    112        }
    113    }
    114 
    115    constructor() {
    116        if (arguments[0] === diplomatRuntime.exposeConstructor) {
    117            return this.#internalConstructor(...Array.prototype.slice.call(arguments, 1));
    118        } else if (arguments[0] === diplomatRuntime.internalConstructor) {
    119            return this.#internalConstructor(...arguments);
    120        } else {
    121            return this.#defaultConstructor(...arguments);
    122        }
    123    }
    124 }