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why not get the method using reflect #39126

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mlboy opened this issue May 18, 2020 · 2 comments
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why not get the method using reflect #39126

mlboy opened this issue May 18, 2020 · 2 comments
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@mlboy
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mlboy commented May 18, 2020 •
edited

What version of Go are you using (go version)?

$ go version go1.13.8 darwin/amd64

Does this issue reproduce with the latest release?

package main

import (
	"fmt"
	"reflect"
)

type t1 struct{}

func (t *t1) Name() string {
	return "tbl_t1"
}
func main() {
	m := t1{}
	rv := reflect.ValueOf(m)
	fn := rv.MethodByName("Name")
	fmt.Println(fn)
        // <invalid reflect.Value> ??????
}

why not get the method ?

keep 2 point :
image
@D1CED
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D1CED commented May 18, 2020

You have to use m := &t1{}, because the method is declared on the pointer.

@martisch
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Unlike many projects, the Go project does not use GitHub Issues for general discussion or asking questions. GitHub Issues are used for tracking bugs and proposals only.

For asking questions, see: https://github.com/golang/go/wiki/Questions

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@martisch @mlboy @gopherbot @D1CED