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62 lines
2.4 KiB
62 lines
2.4 KiB
"use strict";
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var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
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if (k2 === undefined) k2 = k;
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var desc = Object.getOwnPropertyDescriptor(m, k);
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if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
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desc = { enumerable: true, get: function() { return m[k]; } };
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}
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Object.defineProperty(o, k2, desc);
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}) : (function(o, m, k, k2) {
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if (k2 === undefined) k2 = k;
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o[k2] = m[k];
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}));
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var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
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Object.defineProperty(o, "default", { enumerable: true, value: v });
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}) : function(o, v) {
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o["default"] = v;
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});
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var __importStar = (this && this.__importStar) || function (mod) {
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if (mod && mod.__esModule) return mod;
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var result = {};
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if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
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__setModuleDefault(result, mod);
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return result;
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};
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.decodeFirst = decodeFirst;
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exports.encode = encode;
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/**
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* A runtime-agnostic collection of methods for working with CBOR encoding
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* @module
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*/
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const tinyCbor = __importStar(require("@levischuck/tiny-cbor"));
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/**
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* Whatever CBOR encoder is used should keep CBOR data the same length when data is re-encoded
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*
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* MOST CRITICALLY, this means the following needs to be true of whatever CBOR library we use:
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* - CBOR Map type values MUST decode to JavaScript Maps
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* - CBOR tag 64 (uint8 Typed Array) MUST NOT be used when encoding Uint8Arrays back to CBOR
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*
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* So long as these requirements are maintained, then CBOR sequences can be encoded and decoded
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* freely while maintaining their lengths for the most accurate pointer movement across them.
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*/
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/**
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* Decode and return the first item in a sequence of CBOR-encoded values
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*
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* @param input The CBOR data to decode
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* @param asObject (optional) Whether to convert any CBOR Maps into JavaScript Objects. Defaults to
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* `false`
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*/
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function decodeFirst(input) {
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// Make a copy so we don't mutate the original
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const _input = new Uint8Array(input);
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const decoded = tinyCbor.decodePartialCBOR(_input, 0);
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const [first] = decoded;
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return first;
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}
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/**
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* Encode data to CBOR
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*/
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function encode(input) {
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return tinyCbor.encodeCBOR(input);
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}
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