copycat

README

copycat

Recursively perform deep copy from source (src) to destination (dst) using reflection until either end got exhausted. Support array, slice, struct, pointer and interface. Copying between different primitive types are tolerated.

Getting started

To get the package, execute:

go get github.com/maxtong1987/copycat

To import the package, add the following line to your code:

import "github.com/maxtong1987/copycat"

Example

package main

import (
	"fmt"

	"github.com/maxtong1987/copycat"
)

type subType struct {
	X string
	Y bool
	Z int
}

type srcType struct {
	A string
	B int32
	C float64
	D []uint64
	E subType
}

type destType struct {
	A string
	B int64
	C float32
	d []uint64
	E *subType
}

func (d *destType) String() string {
	return fmt.Sprintf("A:%s B:%v C:%v d:%v E:%+v", d.A, d.B, d.C, d.d, *d.E)
}

func main() {
	src := srcType{
		A: "a",
		B: 123,
		C: 0.0122,
		D: []uint64{6, 7, 8, 9},
		E: subType{X: "x", Y: true, Z: 100},
	}
	dst := &destType{}
	copycat.DeepCopy(dst, src)
	fmt.Print(dst)
}

Documentation

Index

• func DeepCopy(dst interface{}, src interface{}) error

Functions

func DeepCopy

func DeepCopy(dst interface{}, src interface{}) error

DeepCopy recursively copies data from src to dst.