When the NewEnforcer is completed, call GetRolesForUserInDomain and report the error invalid memory address or nil pointer dereference

[GanymedeNil]

code show as below

package main

import (
	"fmt"
	"github.com/casbin/casbin"
)

func main(){
	e := casbin.NewEnforcer("rbac_with_domains_model.conf")
	e.EnableLog(true)
        user:="alice"
	sub := "admin" // the user that wants to access a resource.
	dom :="domain1"

	list:=e.GetRolesForUserInDomain(user,dom)
	fmt.Println(list)
        if e.AddRoleForUserInDomain(user,sub,dom){
		list:=e.GetRolesForUserInDomain(user,dom)
		fmt.Println(list)
	}
}

Found through the tracking code, e.model["g"]["g"].RM is nil。
I am solving this problem now, but I don't know if it is a bug.

package main

import (
	"fmt"
	"github.com/casbin/casbin"
)

func main(){
	e := casbin.NewEnforcer("rbac_with_domains_model.conf")
	e.EnableLog(true)
	user:="alice"
	sub := "admin" // the user that wants to access a resource.
	dom :="domain1"
	
	if e.GetModel()["g"]["g"].RM != nil {
		list:=e.GetRolesForUserInDomain(user,dom)
		fmt.Println(list)
	}
	if e.AddRoleForUserInDomain(user,sub,dom){
		list:=e.GetRolesForUserInDomain(user,dom)
		fmt.Println(list)
	}
}

[hsluoyz]

Hi @GanymedeNil , thanks for the report. It has been fixed in: b7676f1