How to represent function implementation details in Golang function documentation?

The syntax for expressing function implementation details in function documents: func (receiver) Name(inputParameters) (outputParameters) error, where: receiver: the type of function call received (optional) Name: the name of the function inputParameters: the type of input parameters (if any) outputParameters: the type of the output parameters (if any) error: any errors that the function may return

How to represent the implementation of a function in Golang function documentation Details?

Golang function documentation can provide important details about a function's implementation, including the types of incoming and outgoing parameters, return results, and any potential errors.

Syntax

The syntax for expressing implementation details in function documents is as follows:

func (receiver) Name(inputParameters) (outputParameters) error

Where:

• receiver is The type to receive the function call (optional)
• Name is the name of the function
• inputParameters is the type of the input parameters (if any)
• outputParameters is the type of the output parameters (if any)
• error is any error the function may return

Actual combat Case

Consider the following function with a receiver:

type User struct {
    ID int
    Name string
}

func (u User) GetName() (string, error) {
    if u.ID == 0 {
        return "", errors.New("User not found")
    }
    return u.Name, nil
}

Function documentation

The documentation for function GetName is as follows:

// GetName returns the name of the user.
//
// The following error can be returned:
//
// - errors.New("User not found"): if the user with the given ID doesn't exist
func (u User) GetName() (string, error)

Note Things

• The order of input and output parameters must be the same as that used in the function definition.
• If the function does not return any value, use () as the output parameter.
• If the function does not return any errors, use () as the error type.
• Use markdown syntax in documents to format and enhance readability.

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