structutil

Documentation

Overview

Utilities for working with and manipulating structs.

Index

• Variables
• func CopyFunc(dest interface{}, source interface{}, fn StructValueFunc) error
• func CopyNonZero(dest interface{}, source interface{}) error
• func FieldsFunc(in interface{}, fn StructFieldFunc) error
• type StructFieldFunc
• type StructValueFunc

Variables

var StopIterating = errors.New(`stop iterating`)

Functions

func CopyFunc

func CopyFunc(dest interface{}, source interface{}, fn StructValueFunc) error

func CopyNonZero

func CopyNonZero(dest interface{}, source interface{}) error

Copy all values from the source into the destination, provided the source value for the corresponding field is not that type's zero value.

func FieldsFunc

func FieldsFunc(in interface{}, fn StructFieldFunc) error

Iterates over all exported and embedded fields in the given struct, calling fn for each field.

Types

type StructFieldFunc

type StructFieldFunc func(field *reflect.StructField, value reflect.Value) error

type StructValueFunc

type StructValueFunc func(field string, sourceValue interface{}, destValue interface{}) (interface{}, bool)

Receives a struct field name, the value of that field in the source struct, and the value for that field in the destination struct. Returns the value that should be placed in the destination struct fields. If the returned bool is false, no changes will be made.