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• .. (вверх)
• [DIR] ..
• [FILE] err-helpers.js
• [FILE] err-proto.js
• [FILE] err-with-cause.js
• [FILE] err.js
• [FILE] req.js
• [FILE] res.js

Просмотр файла: err.js

'use strict'

module.exports = errSerializer

const { messageWithCauses, stackWithCauses, isErrorLike } = require('./err-helpers')
const { pinoErrProto, pinoErrorSymbols } = require('./err-proto')
const { seen } = pinoErrorSymbols

const { toString } = Object.prototype

function errSerializer (err) {
  if (!isErrorLike(err)) {
    return err
  }

  err[seen] = undefined // tag to prevent re-looking at this
  const _err = Object.create(pinoErrProto)
  _err.type = toString.call(err.constructor) === '[object Function]'
    ? err.constructor.name
    : err.name
  _err.message = messageWithCauses(err)
  _err.stack = stackWithCauses(err)

  if (Array.isArray(err.errors)) {
    _err.aggregateErrors = err.errors.map(err => errSerializer(err))
  }

  for (const key in err) {
    if (_err[key] === undefined) {
      const val = err[key]
      if (isErrorLike(val)) {
        // We append cause messages and stacks to _err, therefore skipping causes here
        if (key !== 'cause' && !Object.prototype.hasOwnProperty.call(val, seen)) {
          _err[key] = errSerializer(val)
        }
      } else {
        _err[key] = val
      }
    }
  }

  delete err[seen] // clean up tag in case err is serialized again later
  _err.raw = err
  return _err
}

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