reflecthelper

README

reflecthelper

Reflecthelper is a collection of helper function that works with Reflect in go-lang.

Documentation

Index

• Constants
• func Clone(val reflect.Value) (res reflect.Value)
• func GetChildElem(v reflect.Value) (res reflect.Value)
• func GetElemKind(val reflect.Value) (res reflect.Kind)
• func GetInitElem(v reflect.Value) (res reflect.Value)
• func GetKind(val reflect.Value) (res reflect.Kind)
• func InitNew(val reflect.Value) (res reflect.Value)
• func IsArrayZero(v reflect.Value) bool
• func IsInterfaceReflectZero(val interface{}) (result bool)
• func IsReflectZero(val reflect.Value) (result bool)
• func IsStructZero(v reflect.Value) bool
• func IsTimeZero(t time.Time) bool
• func IsValueZero(v reflect.Value) bool
• func IsZero(k interface{}) bool
• func SetReflectZero(val reflect.Value)
• type Zeroable

Constants

const (
	ZeroTime0 = "0000-00-00 00:00:00"
	ZeroTime1 = "0001-01-01 00:00:00"
)

List of constants for the zero time.

Functions

func Clone

func Clone(val reflect.Value) (res reflect.Value)

Clone clones the current underlying value of val as a reflect.Value. Clone can't clone unexported struct field because it is inaccessible.

func GetChildElem

func GetChildElem(v reflect.Value) (res reflect.Value)

GetChildElem gets the child elem if it is a pointer with an element of pointer.

func GetElemKind

func GetElemKind(val reflect.Value) (res reflect.Kind)

GetElemKind gets the elem kind from ptr type.

func GetInitElem

func GetInitElem(v reflect.Value) (res reflect.Value)

GetInitElem gets the element of a pointer value. It initialize the element of a pointer value if it is nil.

func GetKind

func GetKind(val reflect.Value) (res reflect.Kind)

GetKind gets the kind of the reflect.Value.

func InitNew

func InitNew(val reflect.Value) (res reflect.Value)

InitNew initializes a new reflect.Value with reflect.Type of val.

func IsArrayZero

func IsArrayZero(v reflect.Value) bool

IsArrayZero checks if the array is empty.

func IsInterfaceReflectZero

func IsInterfaceReflectZero(val interface{}) (result bool)

IsInterfaceReflectZero checks whether the interface is nil. It also checks if the reflect.Value of val is reflect.Zero of it's type.

func IsReflectZero

func IsReflectZero(val reflect.Value) (result bool)

IsReflectZero check if the val of reflect.Value is a reflect.Zero of it's type. This operation is solely based on reflect.Zero, not to check if the actual underlying value is zero. To check if the value of reflect.Value is zero, use IsZero or IsValueZero.

func IsStructZero

func IsStructZero(v reflect.Value) bool

IsStructZero checks if the struct is zero.

func IsTimeZero

func IsTimeZero(t time.Time) bool

IsTimeZero checks if the time is zero.

func IsValueZero

func IsValueZero(v reflect.Value) bool

IsValueZero check the reflect.Value if it is zero based on it's kind.

func IsZero

func IsZero(k interface{}) bool

IsZero returns false if k is nil or has a zero value

func SetReflectZero

func SetReflectZero(val reflect.Value)

SetReflectZero sets the val to the reflect.Zero of its type.

Types

type Zeroable

type Zeroable interface {
	IsZero() bool
}

Zeroable is a contract to specifies the Zero attribute of a custom type.