Function errorFormat

packages/tui/src/util/error.ts:97–123

(error: unknown)

}

export function errorFormat(error: unknown): string {
  if (error instanceof Error) {
    return error.stack ?? `${error.name}: ${error.message}`
  }

  if (typeof error === "object" && error !== null) {
    try {
      const json = JSON.stringify(error, null, 2)
      // Plain objects whose own properties are all non-enumerable (or empty)
      // serialize to "{}", which prints as a useless bare `{}` on stderr.
      // Fall back to a custom toString first, then to ctor name + own prop names.
      if (json === "{}") {
        const str = String(error)
        if (str && str !== "[object Object]") return str
        const ctor = error.constructor?.name
        const prefix = ctor && ctor !== "Object" ? ctor : "Error"
        const names = Object.getOwnPropertyNames(error)
        return names.length === 0 ? `${prefix} (no message)` : `${prefix} { ${names.join(", ")} }`
      }
      return json
    } catch {
      return "Unexpected error (unserializable)"
    }
  }

  return String(error)
}

export function errorMessage(error: unknown): string {
  if (error instanceof Error) {