go-error-handling

SKILL.md

In Go, errors are values - they are created by code and consumed by code. This skill covers how to return, structure, wrap, and handle errors effectively.

Use error to signal that a function can fail. By convention, error is the last result parameter.

Never return concrete error types from exported functions - a concrete nil pointer can become a non-nil interface value:

來自 Google 和 Uber 風格指南的全面 Go 錯誤處理模式。涵蓋返回錯誤、用 %w 包裝、哨兵錯誤、選擇錯誤類型、處理錯誤一次、錯誤流結構和日誌記錄。在編寫創建、返回、包裝或處理錯誤的 Go 代碼時使用。 來源：cxuu/golang-skills。

查看原文