What documentation tags should be included in Golang function documentation?

Go function documentation required documentation tags: Description tag (Usage: Provide a description of the purpose and function of the function) Parameter tag (Usage: Provide a name and description for the function parameters) Return value tag (Usage: Describe the type and function return value Meaning) Error tag (Usage: Describes the type and reason for the error returned by the function)

Required documentation tag in Go function documentation

Go function documentation is written through comments, which contain metadata related to the function. These labels are critical to understanding and using functions and help developers write high-quality, easy-to-maintain code.

Required Document Tags:

1. Description

• Tags: //
• Usage: Provide a high-level description of the purpose and functionality of the function.

• Example:

  // GetName 返回给定用户 ID 的用户姓名。
  func GetName(userID int) string {
    // ...
  }

2. Parameter

• Tag: //param
• Usage: Provide a name and description for each function parameter.

• Example:

  // GetName 返回给定用户 ID 的用户姓名。
  //
  // userID：要查找的用户 ID。
  func GetName(userID int) string {
    // ...
  }

3. Return value

• Tag: // return
• Usage: Describe the value, type and meaning returned by the function.

• Example:

  // GetName 返回给定用户 ID 的用户姓名。
  //
  // 返回：用户姓名，如果用户不存在则返回空字符串。
  func GetName(userID int) string {
    // ...
  }

4. Error

• Tag://error
• Usage: If the function may return an error, describe the type and cause of the potential error.

• Example:

  // GetName 返回给定用户 ID 的用户姓名。
  //
  // 如果用户不存在，则返回错误。
  func GetName(userID int) (string, error) {
    // ...
  }

Practical case:

Consider the following function:

// IncrementValue 增量给定整数值。
//
// value：要增量的值。
func IncrementValue(value int) int {
    return value + 1
}

Full documentation comments:

// IncrementValue 增量给定整数值。
//
// value：要增量的值。
//
// 返回：增量后的值。
func IncrementValue(value int) int {
    return value + 1
}

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