How to inspect and manipulate package-level variables using reflection in Golang?

In Go, package-level variables are not directly accessible or manipulable using reflection because they are not exported. However, you can still inspect and manipulate them with some workarounds. Here's how you can do it:

Create a function within the package that gives access to the package-level variables. You can export this function to make it accessible from outside the package if needed. For example:

package mypackage

var myVariable int

// Exported function to access the package-level variable
func GetMyVariable() int {
    return myVariable
}

Use reflection to access the exported function and invoke it to get the value of the package-level variable. Here's an example:

package main

import (
    "fmt"
    "reflect"
    "mypackage"
)

func main() {
    funcValue := reflect.ValueOf(mypackage.GetMyVariable)
    result := funcValue.Call(nil)
    fmt.Println(result[0].Int()) // prints the value of myVariable
}

By following these steps, you can indirectly inspect and manipulate package-level variables using reflection in Go.