@etherspot/data-utils/dist/esm/chunk-S2KUQIEG.mjs.map

Etherspot Data Utils

{"version":3,"sources":["../../node_modules/@noble/hashes/src/crypto.ts","../../node_modules/@noble/hashes/src/_assert.ts","../../node_modules/@noble/hashes/src/utils.ts"],"sourcesContent":["/**\n * Internal webcrypto alias.\n * We use WebCrypto aka globalThis.crypto, which exists in browsers and node.js 16+.\n * See utils.ts for details.\n * @module\n */\ndeclare const globalThis: Record<string, any> | undefined;\nexport const crypto: any =\n  typeof globalThis === 'object' && 'crypto' in globalThis ? globalThis.crypto : undefined;\n","/**\n * Internal assertion helpers.\n * @module\n */\n\n/** Asserts something is positive integer. */\nfunction anumber(n: number): void {\n  if (!Number.isSafeInteger(n) || n < 0) throw new Error('positive integer expected, got ' + n);\n}\n\n/** Is number an Uint8Array? Copied from utils for perf. */\nfunction isBytes(a: unknown): a is Uint8Array {\n  return a instanceof Uint8Array || (ArrayBuffer.isView(a) && a.constructor.name === 'Uint8Array');\n}\n\n/** Asserts something is Uint8Array. */\nfunction abytes(b: Uint8Array | undefined, ...lengths: number[]): void {\n  if (!isBytes(b)) throw new Error('Uint8Array expected');\n  if (lengths.length > 0 && !lengths.includes(b.length))\n    throw new Error('Uint8Array expected of length ' + lengths + ', got length=' + b.length);\n}\n\n/** Hash interface. */\nexport type Hash = {\n  (data: Uint8Array): Uint8Array;\n  blockLen: number;\n  outputLen: number;\n  create: any;\n};\n\n/** Asserts something is hash */\nfunction ahash(h: Hash): void {\n  if (typeof h !== 'function' || typeof h.create !== 'function')\n    throw new Error('Hash should be wrapped by utils.wrapConstructor');\n  anumber(h.outputLen);\n  anumber(h.blockLen);\n}\n\n/** Asserts a hash instance has not been destroyed / finished */\nfunction aexists(instance: any, checkFinished = true): void {\n  if (instance.destroyed) throw new Error('Hash instance has been destroyed');\n  if (checkFinished && instance.finished) throw new Error('Hash#digest() has already been called');\n}\n\n/** Asserts output is properly-sized byte array */\nfunction aoutput(out: any, instance: any): void {\n  abytes(out);\n  const min = instance.outputLen;\n  if (out.length < min) {\n    throw new Error('digestInto() expects output buffer of length at least ' + min);\n  }\n}\n\nexport { anumber, abytes, ahash, aexists, aoutput };\n","/**\n * Utilities for hex, bytes, CSPRNG.\n * @module\n */\n/*! noble-hashes - MIT License (c) 2022 Paul Miller (paulmillr.com) */\n\n// We use WebCrypto aka globalThis.crypto, which exists in browsers and node.js 16+.\n// node.js versions earlier than v19 don't declare it in global scope.\n// For node.js, package.json#exports field mapping rewrites import\n// from `crypto` to `cryptoNode`, which imports native module.\n// Makes the utils un-importable in browsers without a bundler.\n// Once node.js 18 is deprecated (2025-04-30), we can just drop the import.\nimport { crypto } from '@noble/hashes/crypto';\nimport { abytes } from './_assert.js';\n// export { isBytes } from './_assert.js';\n// We can't reuse isBytes from _assert, because somehow this causes huge perf issues\nexport function isBytes(a: unknown): a is Uint8Array {\n  return a instanceof Uint8Array || (ArrayBuffer.isView(a) && a.constructor.name === 'Uint8Array');\n}\n\n// prettier-ignore\nexport type TypedArray = Int8Array | Uint8ClampedArray | Uint8Array |\n  Uint16Array | Int16Array | Uint32Array | Int32Array;\n\n// Cast array to different type\nexport function u8(arr: TypedArray): Uint8Array {\n  return new Uint8Array(arr.buffer, arr.byteOffset, arr.byteLength);\n}\nexport function u32(arr: TypedArray): Uint32Array {\n  return new Uint32Array(arr.buffer, arr.byteOffset, Math.floor(arr.byteLength / 4));\n}\n\n// Cast array to view\nexport function createView(arr: TypedArray): DataView {\n  return new DataView(arr.buffer, arr.byteOffset, arr.byteLength);\n}\n\n/** The rotate right (circular right shift) operation for uint32 */\nexport function rotr(word: number, shift: number): number {\n  return (word << (32 - shift)) | (word >>> shift);\n}\n/** The rotate left (circular left shift) operation for uint32 */\nexport function rotl(word: number, shift: number): number {\n  return (word << shift) | ((word >>> (32 - shift)) >>> 0);\n}\n\n/** Is current platform little-endian? Most are. Big-Endian platform: IBM */\nexport const isLE: boolean = /* @__PURE__ */ (() =>\n  new Uint8Array(new Uint32Array([0x11223344]).buffer)[0] === 0x44)();\n// The byte swap operation for uint32\nexport function byteSwap(word: number): number {\n  return (\n    ((word << 24) & 0xff000000) |\n    ((word << 8) & 0xff0000) |\n    ((word >>> 8) & 0xff00) |\n    ((word >>> 24) & 0xff)\n  );\n}\n/** Conditionally byte swap if on a big-endian platform */\nexport const byteSwapIfBE: (n: number) => number = isLE\n  ? (n: number) => n\n  : (n: number) => byteSwap(n);\n\n/** In place byte swap for Uint32Array */\nexport function byteSwap32(arr: Uint32Array): void {\n  for (let i = 0; i < arr.length; i++) {\n    arr[i] = byteSwap(arr[i]);\n  }\n}\n\n// Array where index 0xf0 (240) is mapped to string 'f0'\nconst hexes = /* @__PURE__ */ Array.from({ length: 256 }, (_, i) =>\n  i.toString(16).padStart(2, '0')\n);\n/**\n * Convert byte array to hex string.\n * @example bytesToHex(Uint8Array.from([0xca, 0xfe, 0x01, 0x23])) // 'cafe0123'\n */\nexport function bytesToHex(bytes: Uint8Array): string {\n  abytes(bytes);\n  // pre-caching improves the speed 6x\n  let hex = '';\n  for (let i = 0; i < bytes.length; i++) {\n    hex += hexes[bytes[i]];\n  }\n  return hex;\n}\n\n// We use optimized technique to convert hex string to byte array\nconst asciis = { _0: 48, _9: 57, A: 65, F: 70, a: 97, f: 102 } as const;\nfunction asciiToBase16(ch: number): number | undefined {\n  if (ch >= asciis._0 && ch <= asciis._9) return ch - asciis._0; // '2' => 50-48\n  if (ch >= asciis.A && ch <= asciis.F) return ch - (asciis.A - 10); // 'B' => 66-(65-10)\n  if (ch >= asciis.a && ch <= asciis.f) return ch - (asciis.a - 10); // 'b' => 98-(97-10)\n  return;\n}\n\n/**\n * Convert hex string to byte array.\n * @example hexToBytes('cafe0123') // Uint8Array.from([0xca, 0xfe, 0x01, 0x23])\n */\nexport function hexToBytes(hex: string): Uint8Array {\n  if (typeof hex !== 'string') throw new Error('hex string expected, got ' + typeof hex);\n  const hl = hex.length;\n  const al = hl / 2;\n  if (hl % 2) throw new Error('hex string expected, got unpadded hex of length ' + hl);\n  const array = new Uint8Array(al);\n  for (let ai = 0, hi = 0; ai < al; ai++, hi += 2) {\n    const n1 = asciiToBase16(hex.charCodeAt(hi));\n    const n2 = asciiToBase16(hex.charCodeAt(hi + 1));\n    if (n1 === undefined || n2 === undefined) {\n      const char = hex[hi] + hex[hi + 1];\n      throw new Error('hex string expected, got non-hex character \"' + char + '\" at index ' + hi);\n    }\n    array[ai] = n1 * 16 + n2; // multiply first octet, e.g. 'a3' => 10*16+3 => 160 + 3 => 163\n  }\n  return array;\n}\n\n/**\n * There is no setImmediate in browser and setTimeout is slow.\n * Call of async fn will return Promise, which will be fullfiled only on\n * next scheduler queue processing step and this is exactly what we need.\n */\nexport const nextTick = async (): Promise<void> => {};\n\n/** Returns control to thread each 'tick' ms to avoid blocking. */\nexport async function asyncLoop(\n  iters: number,\n  tick: number,\n  cb: (i: number) => void\n): Promise<void> {\n  let ts = Date.now();\n  for (let i = 0; i < iters; i++) {\n    cb(i);\n    // Date.now() is not monotonic, so in case if clock goes backwards we return return control too\n    const diff = Date.now() - ts;\n    if (diff >= 0 && diff < tick) continue;\n    await nextTick();\n    ts += diff;\n  }\n}\n\n// Global symbols in both browsers and Node.js since v11\n// See https://github.com/microsoft/TypeScript/issues/31535\ndeclare const TextEncoder: any;\n\n/**\n * Convert JS string to byte array.\n * @example utf8ToBytes('abc') // new Uint8Array([97, 98, 99])\n */\nexport function utf8ToBytes(str: string): Uint8Array {\n  if (typeof str !== 'string') throw new Error('utf8ToBytes expected string, got ' + typeof str);\n  return new Uint8Array(new TextEncoder().encode(str)); // https://bugzil.la/1681809\n}\n\n/** Accepted input of hash functions. Strings are converted to byte arrays. */\nexport type Input = Uint8Array | string;\n/**\n * Normalizes (non-hex) string or Uint8Array to Uint8Array.\n * Warning: when Uint8Array is passed, it would NOT get copied.\n * Keep in mind for future mutable operations.\n */\nexport function toBytes(data: Input): Uint8Array {\n  if (typeof data === 'string') data = utf8ToBytes(data);\n  abytes(data);\n  return data;\n}\n\n/**\n * Copies several Uint8Arrays into one.\n */\nexport function concatBytes(...arrays: Uint8Array[]): Uint8Array {\n  let sum = 0;\n  for (let i = 0; i < arrays.length; i++) {\n    const a = arrays[i];\n    abytes(a);\n    sum += a.length;\n  }\n  const res = new Uint8Array(sum);\n  for (let i = 0, pad = 0; i < arrays.length; i++) {\n    const a = arrays[i];\n    res.set(a, pad);\n    pad += a.length;\n  }\n  return res;\n}\n\n/** For runtime check if class implements interface */\nexport abstract class Hash<T extends Hash<T>> {\n  abstract blockLen: number; // Bytes per block\n  abstract outputLen: number; // Bytes in output\n  abstract update(buf: Input): this;\n  // Writes digest into buf\n  abstract digestInto(buf: Uint8Array): void;\n  abstract digest(): Uint8Array;\n  /**\n   * Resets internal state. Makes Hash instance unusable.\n   * Reset is impossible for keyed hashes if key is consumed into state. If digest is not consumed\n   * by user, they will need to manually call `destroy()` when zeroing is necessary.\n   */\n  abstract destroy(): void;\n  /**\n   * Clones hash instance. Unsafe: doesn't check whether `to` is valid. Can be used as `clone()`\n   * when no options are passed.\n   * Reasons to use `_cloneInto` instead of clone: 1) performance 2) reuse instance => all internal\n   * buffers are overwritten => causes buffer overwrite which is used for digest in some cases.\n   * There are no guarantees for clean-up because it's impossible in JS.\n   */\n  abstract _cloneInto(to?: T): T;\n  // Safe version that clones internal state\n  clone(): T {\n    return this._cloneInto();\n  }\n}\n\n/**\n * XOF: streaming API to read digest in chunks.\n * Same as 'squeeze' in keccak/k12 and 'seek' in blake3, but more generic name.\n * When hash used in XOF mode it is up to user to call '.destroy' afterwards, since we cannot\n * destroy state, next call can require more bytes.\n */\nexport type HashXOF<T extends Hash<T>> = Hash<T> & {\n  xof(bytes: number): Uint8Array; // Read 'bytes' bytes from digest stream\n  xofInto(buf: Uint8Array): Uint8Array; // read buf.length bytes from digest stream into buf\n};\n\ntype EmptyObj = {};\nexport function checkOpts<T1 extends EmptyObj, T2 extends EmptyObj>(\n  defaults: T1,\n  opts?: T2\n): T1 & T2 {\n  if (opts !== undefined && {}.toString.call(opts) !== '[object Object]')\n    throw new Error('Options should be object or undefined');\n  const merged = Object.assign(defaults, opts);\n  return merged as T1 & T2;\n}\n\n/** Hash function */\nexport type CHash = ReturnType<typeof wrapConstructor>;\n/** Hash function with output */\nexport type CHashO = ReturnType<typeof wrapConstructorWithOpts>;\n/** XOF with output */\nexport type CHashXO = ReturnType<typeof wrapXOFConstructorWithOpts>;\n\n/** Wraps hash function, creating an interface on top of it */\nexport function wrapConstructor<T extends Hash<T>>(\n  hashCons: () => Hash<T>\n): {\n  (msg: Input): Uint8Array;\n  outputLen: number;\n  blockLen: number;\n  create(): Hash<T>;\n} {\n  const hashC = (msg: Input): Uint8Array => hashCons().update(toBytes(msg)).digest();\n  const tmp = hashCons();\n  hashC.outputLen = tmp.outputLen;\n  hashC.blockLen = tmp.blockLen;\n  hashC.create = () => hashCons();\n  return hashC;\n}\n\nexport function wrapConstructorWithOpts<H extends Hash<H>, T extends Object>(\n  hashCons: (opts?: T) => Hash<H>\n): {\n  (msg: Input, opts?: T): Uint8Array;\n  outputLen: number;\n  blockLen: number;\n  create(opts: T): Hash<H>;\n} {\n  const hashC = (msg: Input, opts?: T): Uint8Array => hashCons(opts).update(toBytes(msg)).digest();\n  const tmp = hashCons({} as T);\n  hashC.outputLen = tmp.outputLen;\n  hashC.blockLen = tmp.blockLen;\n  hashC.create = (opts: T) => hashCons(opts);\n  return hashC;\n}\n\nexport function wrapXOFConstructorWithOpts<H extends HashXOF<H>, T extends Object>(\n  hashCons: (opts?: T) => HashXOF<H>\n): {\n  (msg: Input, opts?: T): Uint8Array;\n  outputLen: number;\n  blockLen: number;\n  create(opts: T): HashXOF<H>;\n} {\n  const hashC = (msg: Input, opts?: T): Uint8Array => hashCons(opts).update(toBytes(msg)).digest();\n  const tmp = hashCons({} as T);\n  hashC.outputLen = tmp.outputLen;\n  hashC.blockLen = tmp.blockLen;\n  hashC.create = (opts: T) => hashCons(opts);\n  return hashC;\n}\n\n/** Cryptographically secure PRNG. 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