https://github.com/maxtong1987/copycat

Recursively perform deep copy from source (src) to destination (dst) using reflection.
https://github.com/maxtong1987/copycat

deepcopy go golang reflection

Last synced: 5 months ago
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Recursively perform deep copy from source (src) to destination (dst) using reflection.

• Host: GitHub
• URL: https://github.com/maxtong1987/copycat
• Owner: maxtong1987
• License: mit
• Created: 2020-09-12T01:03:45.000Z (almost 6 years ago)
• Default Branch: master
• Last Pushed: 2021-06-29T15:42:50.000Z (almost 5 years ago)
• Last Synced: 2024-06-20T17:45:42.407Z (about 2 years ago)
• Topics: deepcopy, go, golang, reflection
• Language: Go
• Homepage:
• Size: 43 KB
• Stars: 1
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# copycat

[![GoDoc](https://godoc.org/github.com/maxtong1987/copycat?status.svg)](https://pkg.go.dev/github.com/maxtong1987/copycat)

[![](https://circleci.com/gh/maxtong1987/copycat.svg?style=svg)](https://app.circleci.com/pipelines/github/maxtong1987/copycat?branch=master)

[![Go](https://github.com/maxtong1987/copycat/workflows/Go/badge.svg)](https://github.com/maxtong1987/copycat/actions)

[![Coverage Status](https://coveralls.io/repos/github/maxtong1987/copycat/badge.svg?branch=master)](https://coveralls.io/github/maxtong1987/copycat?branch=master)

[![Go Report Card](https://goreportcard.com/badge/github.com/maxtong1987/copycat)](https://goreportcard.com/report/github.com/maxtong1987/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:

```sh

go get github.com/maxtong1987/copycat

```

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

```go

import "github.com/maxtong1987/copycat"

```

## Example

```go

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)

}

```