Given a function with a parameter (that is a pointer to a struct) I want to instantiate a type of this parameter.
For example, for this function:
func MyFunction(myStruct *MyStruct) {}
using reflection I want to create a variable that contains exactly same as x := &MyStruct{}
would contain.
This is the code example:
package main
import (
"fmt"
"reflect"
)
type MyStruct struct {
}
func main () {
reflectedFunction := reflect.TypeOf(MyFunction)
argType := reflectedFunction.In(0)
reflectedParameter := reflect.New(argType)
actual := reflectedParameter.Interface()
fmt.Println(actual)
expected := &MyStruct{}
fmt.Println(expected)
}
func MyFunction(myStruct *MyStruct) {
}
If you execute it, you'll see that they contain different info:
0xc00000e028 // actual
&{} // expected
This question isn't about why I would like to do this, so please avoid recommending not doing it, etc.
Aucun commentaire:
Enregistrer un commentaire