tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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DateTime.mjs (4683B)

      1 // generated by diplomat-tool
      2 import { Calendar } from "./Calendar.mjs"
      3 import { Date } from "./Date.mjs"
      4 import { Rfc9557ParseError } from "./Rfc9557ParseError.mjs"
      5 import { Time } from "./Time.mjs"
      6 import wasm from "./diplomat-wasm.mjs";
      7 import * as diplomatRuntime from "./diplomat-runtime.mjs";
      8 
      9 
     10 /**
     11 * An ICU4X DateTime object capable of containing a date and time for any calendar.
     12 *
     13 * See the [Rust documentation for `DateTime`](https://docs.rs/icu/latest/icu/time/struct.DateTime.html) for more information.
     14 */
     15 
     16 
     17 export class DateTime {
     18    #date;
     19    get date() {
     20        return this.#date;
     21    }
     22    #time;
     23    get time() {
     24        return this.#time;
     25    }
     26    #internalConstructor(structObj, internalConstructor) {
     27        if (typeof structObj !== "object") {
     28            throw new Error("DateTime's constructor takes an object of DateTime's fields.");
     29        }
     30 
     31        if (internalConstructor !== diplomatRuntime.internalConstructor) {
     32            throw new Error("DateTime is an out struct and can only be created internally.");
     33        }
     34        if ("date" in structObj) {
     35            this.#date = structObj.date;
     36        } else {
     37            throw new Error("Missing required field date.");
     38        }
     39 
     40        if ("time" in structObj) {
     41            this.#time = structObj.time;
     42        } else {
     43            throw new Error("Missing required field time.");
     44        }
     45 
     46        return this;
     47    }
     48 
     49    // Return this struct in FFI function friendly format.
     50    // Returns an array that can be expanded with spread syntax (...)
     51    _intoFFI(
     52        functionCleanupArena,
     53        appendArrayMap
     54    ) {
     55        return [this.#date.ffiValue, this.#time.ffiValue]
     56    }
     57 
     58    static _fromSuppliedValue(internalConstructor, obj) {
     59        if (internalConstructor !== diplomatRuntime.internalConstructor) {
     60            throw new Error("_fromSuppliedValue cannot be called externally.");
     61        }
     62 
     63        if (obj instanceof DateTime) {
     64            return obj;
     65        }
     66 
     67        return DateTime.fromFields(obj);
     68    }
     69 
     70    _writeToArrayBuffer(
     71        arrayBuffer,
     72        offset,
     73        functionCleanupArena,
     74        appendArrayMap
     75    ) {
     76        diplomatRuntime.writeToArrayBuffer(arrayBuffer, offset + 0, this.#date.ffiValue, Uint32Array);
     77        diplomatRuntime.writeToArrayBuffer(arrayBuffer, offset + 4, this.#time.ffiValue, Uint32Array);
     78    }
     79 
     80    // This struct contains borrowed fields, so this takes in a list of
     81    // "edges" corresponding to where each lifetime's data may have been borrowed from
     82    // and passes it down to individual fields containing the borrow.
     83    // This method does not attempt to handle any dependencies between lifetimes, the caller
     84    // should handle this when constructing edge arrays.
     85    static _fromFFI(internalConstructor, ptr) {
     86        if (internalConstructor !== diplomatRuntime.internalConstructor) {
     87            throw new Error("DateTime._fromFFI is not meant to be called externally. Please use the default constructor.");
     88        }
     89        let structObj = {};
     90        const dateDeref = diplomatRuntime.ptrRead(wasm, ptr);
     91        structObj.date = new Date(diplomatRuntime.internalConstructor, dateDeref, []);
     92        const timeDeref = diplomatRuntime.ptrRead(wasm, ptr + 4);
     93        structObj.time = new Time(diplomatRuntime.internalConstructor, timeDeref, []);
     94 
     95        return new DateTime(structObj, internalConstructor);
     96    }
     97 
     98 
     99    /**
    100     * Creates a new [`DateTime`] from an IXDTF string.
    101     *
    102     * See the [Rust documentation for `try_from_str`](https://docs.rs/icu/latest/icu/time/struct.DateTime.html#method.try_from_str) for more information.
    103     */
    104    static fromString(v, calendar) {
    105        let functionCleanupArena = new diplomatRuntime.CleanupArena();
    106 
    107        const vSlice = diplomatRuntime.DiplomatBuf.str8(wasm, v);
    108        const diplomatReceive = new diplomatRuntime.DiplomatReceiveBuf(wasm, 9, 4, true);
    109 
    110 
    111        const result = wasm.icu4x_DateTime_from_string_mv1(diplomatReceive.buffer, ...vSlice.splat(), calendar.ffiValue);
    112 
    113        try {
    114            if (!diplomatReceive.resultFlag) {
    115                const cause = new Rfc9557ParseError(diplomatRuntime.internalConstructor, diplomatRuntime.enumDiscriminant(wasm, diplomatReceive.buffer));
    116                throw new globalThis.Error('Rfc9557ParseError: ' + cause.value, { cause });
    117            }
    118            return DateTime._fromFFI(diplomatRuntime.internalConstructor, diplomatReceive.buffer);
    119        }
    120 
    121        finally {
    122            functionCleanupArena.free();
    123 
    124            diplomatReceive.free();
    125        }
    126    }
    127 
    128    constructor(structObj, internalConstructor) {
    129        return this.#internalConstructor(...arguments)
    130    }
    131 }