Oinktube/node_modules/level-errors/errors.js

var createError = require('errno').create
var LevelUPError = createError('LevelUPError')
var NotFoundError = createError('NotFoundError', LevelUPError)

NotFoundError.prototype.notFound = true
NotFoundError.prototype.status = 404

module.exports = {
  LevelUPError: LevelUPError,
  InitializationError: createError('InitializationError', LevelUPError),
  OpenError: createError('OpenError', LevelUPError),
  ReadError: createError('ReadError', LevelUPError),
  WriteError: createError('WriteError', LevelUPError),
  NotFoundError: NotFoundError,
  EncodingError: createError('EncodingError', LevelUPError)
}