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Текущая директория: /usr/lib/node_modules/bitgo/node_modules/viem/utils/signature

Просмотр файла: serializeErc8010Signature.ts

import type { Address } from 'abitype'
import { SignatureErc8010 } from 'ox/erc8010'
import type { ErrorType } from '../../errors/utils.js'
import type { SignedAuthorization } from '../../types/authorization.js'
import type { ByteArray, Hex } from '../../types/misc.js'
import { hexToBytes } from '../encoding/toBytes.js'

type To = 'bytes' | 'hex'

export type SerializeErc8010SignatureParameters<to extends To = 'hex'> = {
  /** Address of the initializer. */
  address?: Address | undefined
  /** Authorization signed by the delegatee. */
  authorization: SignedAuthorization
  /** Data to initialize the delegation. */
  data?: Hex | undefined
  /** The original signature. */
  signature: Hex
  to?: to | To | undefined
}

export type SerializeErc8010SignatureReturnType<to extends To = 'hex'> =
  | (to extends 'hex' ? Hex : never)
  | (to extends 'bytes' ? ByteArray : never)

export type SerializeErc8010SignatureErrorType = ErrorType

/**
 * @description Serializes a ERC-8010 flavoured signature into hex format.
 *
 * @param signature ERC-8010 signature in object format.
 * @returns ERC-8010 signature in hex format.
 */
export function serializeErc8010Signature<to extends To = 'hex'>(
  parameters: SerializeErc8010SignatureParameters<to>,
): SerializeErc8010SignatureReturnType<to> {
  const { address, data, signature, to = 'hex' } = parameters
  const signature_ = SignatureErc8010.wrap({
    authorization: {
      address: parameters.authorization.address,
      chainId: parameters.authorization.chainId,
      nonce: BigInt(parameters.authorization.nonce),
      r: BigInt(parameters.authorization.r),
      s: BigInt(parameters.authorization.s),
      yParity: parameters.authorization.yParity!,
    },
    data,
    signature,
    to: address,
  })
  if (to === 'hex') return signature_ as SerializeErc8010SignatureReturnType<to>
  return hexToBytes(signature_) as SerializeErc8010SignatureReturnType<to>
}

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