In Go, you can determine if a type is a pointer using reflection by checking its Kind() method. Here's an example:
package main
import (
"fmt"
"reflect"
)
func main() {
var x int
var y *int
fmt.Println(isPointer(x)) // false
fmt.Println(isPointer(y)) // true
}
func isPointer(i interface{}) bool {
t := reflect.TypeOf(i)
return t.Kind() == reflect.Ptr
}
In the above example, the isPointer function takes an interface and uses reflection to check if the type of the interface is a pointer (reflect.Ptr). If the type is a pointer, it returns true, otherwise false.
You can run this code and see that it correctly identifies that x is not a pointer type, while y is a pointer type.