https://github.com/visualfc/funcval

golang runtime funcval extract
https://github.com/visualfc/funcval

Last synced: 8 days ago
JSON representation

golang runtime funcval extract

• Host: GitHub
• URL: https://github.com/visualfc/funcval
• Owner: visualfc
• License: apache-2.0
• Created: 2022-04-14T07:51:49.000Z (about 4 years ago)
• Default Branch: main
• Last Pushed: 2023-08-01T14:28:33.000Z (over 2 years ago)
• Last Synced: 2025-01-17T09:47:25.262Z (over 1 year ago)
• Language: Go
• Size: 18.6 KB
• Stars: 1
• Watchers: 3
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

Awesome Lists containing this project

README

          
# funcval

golang runtime funcval extract

[![Go1.14](https://github.com/visualfc/funcval/workflows/Go1.14/badge.svg)](https://github.com/visualfc/funcval/actions/workflows/go114.yml)

[![Go1.15](https://github.com/visualfc/funcval/workflows/Go1.15/badge.svg)](https://github.com/visualfc/funcval/actions/workflows/go115.yml)

[![Go1.16](https://github.com/visualfc/funcval/workflows/Go1.16/badge.svg)](https://github.com/visualfc/funcval/actions/workflows/go116.yml)

[![Go1.17](https://github.com/visualfc/funcval/workflows/Go1.17/badge.svg)](https://github.com/visualfc/funcval/actions/workflows/go117.yml)

[![Go1.18](https://github.com/visualfc/funcval/workflows/Go1.18/badge.svg)](https://github.com/visualfc/funcval/actions/workflows/go118.yml)

### extract closure env variable

_func Get(fn interface{}) (fv *FuncVal, makefunc int)_

```

package main

import (

	"unsafe"

	"github.com/visualfc/funcval"

)

func main() {

	a := 1

	b := "hello"

	c := 10

	fn := func() {

		println(a, b, c)

	}

	c = 20

	fv, _ := funcval.Get(fn)

	type closure struct {

		funcval.FuncVal

		a int

		b string

		c *int

	}

	env := (*closure)(unsafe.Pointer(fv))

	println(env.a, env.b, *env.c)

}

```