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utils.d.ts 2.4KB

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  1. /// <reference types="node" />
  2. import { SmartBuffer } from './smartbuffer';
  3. import { Buffer } from 'buffer';
  4. /**
  5. * Error strings
  6. */
  7. declare const ERRORS: {
  8. INVALID_ENCODING: string;
  9. INVALID_SMARTBUFFER_SIZE: string;
  10. INVALID_SMARTBUFFER_BUFFER: string;
  11. INVALID_SMARTBUFFER_OBJECT: string;
  12. INVALID_OFFSET: string;
  13. INVALID_OFFSET_NON_NUMBER: string;
  14. INVALID_LENGTH: string;
  15. INVALID_LENGTH_NON_NUMBER: string;
  16. INVALID_TARGET_OFFSET: string;
  17. INVALID_TARGET_LENGTH: string;
  18. INVALID_READ_BEYOND_BOUNDS: string;
  19. INVALID_WRITE_BEYOND_BOUNDS: string;
  20. };
  21. /**
  22. * Checks if a given encoding is a valid Buffer encoding. (Throws an exception if check fails)
  23. *
  24. * @param { String } encoding The encoding string to check.
  25. */
  26. declare function checkEncoding(encoding: BufferEncoding): void;
  27. /**
  28. * Checks if a given number is a finite integer. (Throws an exception if check fails)
  29. *
  30. * @param { Number } value The number value to check.
  31. */
  32. declare function isFiniteInteger(value: number): boolean;
  33. /**
  34. * Checks if a length value is valid. (Throws an exception if check fails)
  35. *
  36. * @param { Number } length The value to check.
  37. */
  38. declare function checkLengthValue(length: any): void;
  39. /**
  40. * Checks if a offset value is valid. (Throws an exception if check fails)
  41. *
  42. * @param { Number } offset The value to check.
  43. */
  44. declare function checkOffsetValue(offset: any): void;
  45. /**
  46. * Checks if a target offset value is out of bounds. (Throws an exception if check fails)
  47. *
  48. * @param { Number } offset The offset value to check.
  49. * @param { SmartBuffer } buff The SmartBuffer instance to check against.
  50. */
  51. declare function checkTargetOffset(offset: number, buff: SmartBuffer): void;
  52. interface Buffer {
  53. readBigInt64BE(offset?: number): bigint;
  54. readBigInt64LE(offset?: number): bigint;
  55. readBigUInt64BE(offset?: number): bigint;
  56. readBigUInt64LE(offset?: number): bigint;
  57. writeBigInt64BE(value: bigint, offset?: number): number;
  58. writeBigInt64LE(value: bigint, offset?: number): number;
  59. writeBigUInt64BE(value: bigint, offset?: number): number;
  60. writeBigUInt64LE(value: bigint, offset?: number): number;
  61. }
  62. /**
  63. * Throws if Node.js version is too low to support bigint
  64. */
  65. declare function bigIntAndBufferInt64Check(bufferMethod: keyof Buffer): void;
  66. export { ERRORS, isFiniteInteger, checkEncoding, checkOffsetValue, checkLengthValue, checkTargetOffset, bigIntAndBufferInt64Check };