validation

Documentation

Index

• Variables
• func Bind(value reflect.Value, field reflect.StructField, choices []string, ...) func(val string) error
• type ValueValidator

Variables

var ErrInvalidChoice = errors.New("invalid choice")

ErrInvalidChoice indicates that the provided flag argument is not among the valid choices.

Functions

func Bind

func Bind(value reflect.Value, field reflect.StructField, choices []string, opt scan.Opts) func(val string) error

Bind builds a validation function including all validation routines (builtin or user-defined) available.

Types

type ValueValidator

type ValueValidator interface {
	// IsValidValue returns an error if the provided string value is valid for
	// the flag.
	IsValidValue(value string) error
}

ValueValidator is the interface implemented by types that can validate a flag argument themselves. The provided value is directly passed from the command line. This interface has been retroported from jessevdk/go-flags.