Function decodeFunctionData

src/utils/abi/decodeFunctionData.ts:56–78

(
  parameters: DecodeFunctionDataParameters<abi>,
)

  | ErrorType

export function decodeFunctionData<const abi extends Abi | readonly unknown[]>(
  parameters: DecodeFunctionDataParameters<abi>,
) {
  const { abi, data } = parameters as DecodeFunctionDataParameters
  const signature = slice(data, 0, 4)
  const description = abi.find(
    (x) =>
      x.type === 'function' &&
      signature === toFunctionSelector(formatAbiItem(x)),
  )
  if (!description)
    throw new AbiFunctionSignatureNotFoundError(signature, {
      docsPath: '/docs/contract/decodeFunctionData',
    })
  return {
    functionName: (description as { name: string }).name,
    args: ('inputs' in description &&
    description.inputs &&
    description.inputs.length > 0
      ? decodeAbiParameters(description.inputs, slice(data, 4))
      : undefined) as readonly unknown[] | undefined,
  } as DecodeFunctionDataReturnType<abi>
}