@litert/televoke/lib/shared/Utils.js

A simple RPC service framework.

"use strict";
/**
 * Copyright 2025 Angus.Fenying <fenying@litert.org>
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
Object.defineProperty(exports, "__esModule", { value: true });
exports.once = once;
exports.buffer2json = buffer2json;
/**
 * Ensures that a function is only called once.
 *
 * @param fn    The function to call.
 * @returns     The wrapped function.
 */
function once(fn) {
    let called = false;
    let result;
    return function (...args) {
        if (!called) {
            called = true;
            result = fn(...args);
        }
        return result;
    };
}
function buffer2json(data) {
    let str = '';
    const td = new TextDecoder('utf-8', { fatal: true });
    for (const seg of data) {
        str += td.decode(seg, { stream: true });
    }
    return JSON.parse(str);
}
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