open-vector-tile/dist/vectorTileWASM.js

This library reads/writes Open Vector Tiles

import wasmBase64 from './vectorTile.wasm.js';
/** Free the memory */
// type WasmFreeVectorTile = (ptr: number) => void;
/** Sentinel to allocate memory */
// type WasmAllocSentinel = (size: number) => number;
/**
 * # Open Vector Tile WASM
 * This is a WASM implementation of the Open Vector Tile format.
 * Work in progress. Just for testing purposes currently.
 */
export class VectorTileWASM {
    instance;
    wasmMemory;
    tmpString = '';
    // #finalizationRegistry: FinalizationRegistry<number>;
    /** setup */
    constructor() {
        const mod = new WebAssembly.Module(base64ToArrayBuffer(wasmBase64));
        this.instance = new WebAssembly.Instance(mod, {
            env: {},
        });
        // this.#finalizationRegistry = new FinalizationRegistry<number>((id: VectorTileId): void => {
        //   const freeS2CellId = this.instance.exports.free_s2_cell_id as WasmFreeVectorTile;
        //   freeS2CellId(id);
        // });
    }
}
/**
 * polyfill
 * @param base64 - the base64 string
 * @returns - the array buffer of raw bytes
 */
function base64ToArrayBuffer(base64) {
    const binaryString = atob(base64);
    const len = binaryString.length;
    const bytes = new Uint8Array(len);
    for (let i = 0; i < len; i++)
        bytes[i] = binaryString.charCodeAt(i);
    return bytes.buffer;
}
//# sourceMappingURL=vectorTileWASM.js.map