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• .. (вверх)
• [DIR] ..
• [FILE] _assert.ts
• [FILE] _blake2.ts
• [FILE] _sha2.ts
• [FILE] _u64.ts
• [FILE] argon2.ts
• [FILE] blake2b.ts
• [FILE] blake2s.ts
• [FILE] blake3.ts
• [FILE] crypto.ts
• [FILE] cryptoBrowser.ts
• [FILE] eskdf.ts
• [FILE] hkdf.ts
• [FILE] hmac.ts
• [FILE] index.ts
• [FILE] pbkdf2.ts
• [FILE] ripemd160.ts
• [FILE] scrypt.ts
• [FILE] sha1.ts
• [FILE] sha256.ts
• [FILE] sha3-addons.ts
• [FILE] sha3.ts
• [FILE] sha512.ts
• [FILE] utils.ts

Просмотр файла: _assert.ts

export function number(n: number) {
  if (!Number.isSafeInteger(n) || n < 0) throw new Error(`Wrong positive integer: ${n}`);
}

export function bool(b: boolean) {
  if (typeof b !== 'boolean') throw new Error(`Expected boolean, not ${b}`);
}

export function bytes(b: Uint8Array | undefined, ...lengths: number[]) {
  if (!(b instanceof Uint8Array)) throw new TypeError('Expected Uint8Array');
  if (lengths.length > 0 && !lengths.includes(b.length))
    throw new TypeError(`Expected Uint8Array of length ${lengths}, not of length=${b.length}`);
}

type Hash = {
  (data: Uint8Array): Uint8Array;
  blockLen: number;
  outputLen: number;
  create: any;
};
export function hash(hash: Hash) {
  if (typeof hash !== 'function' || typeof hash.create !== 'function')
    throw new Error('Hash should be wrapped by utils.wrapConstructor');
  number(hash.outputLen);
  number(hash.blockLen);
}

export function exists(instance: any, checkFinished = true) {
  if (instance.destroyed) throw new Error('Hash instance has been destroyed');
  if (checkFinished && instance.finished) throw new Error('Hash#digest() has already been called');
}
export function output(out: any, instance: any) {
  bytes(out);
  const min = instance.outputLen;
  if (out.length < min) {
    throw new Error(`digestInto() expects output buffer of length at least ${min}`);
  }
}

const assert = {
  number,
  bool,
  bytes,
  hash,
  exists,
  output,
};

export default assert;

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