I am a copier, I copy everything from a struct to another struct
- Copy field to field if name exactly match
- Copy from method to field if method name and field name exactly match
- Copy from field to method if field name and method name exactly match
- Copy slice to slice
- Copy struct to slice
import . "github.com/jinzhu/copier"
type User struct {
Name string
Role string
Age int32
}
func (user *User) DoubleAge() int32 {
return 2 * user.Age
}
type Employee struct {
Name string
Age int32
DoubleAge int32
EmployeId int64
SuperRule string
}
func (employee *Employee) Role(role string) {
employee.SuperRule = "Super " + role
}
user := User{Name: "Jinzhu", Age: 18, Role: "Admin"}
employee := Employee{}
Copy(&employee, &user)
// employee => Employee{ Name: "Jinzhu", // Copy from field
// Age: 18, // Copy from field
// DoubleAge: 36, // Copy from method
// EmployeeId: 0, // Just ignored
// SuperRule: "Super Admin", // Copy to method
// }
// Copy struct to slice
user := User{Name: "hello", Age: 18, Role: "User"}
employees := []Employee{}
Copy(&employees, &user)
// employees => [{hello 18 0 36 Super User}]
// Copy slice to slice
users := []User{{Name: "Jinzhu", Age: 18, Role: "Admin"}, {Name: "jinzhu 2", Age: 30, Role: "Dev"}}
employees := []Employee{}
Copy(&employees, &users)
// employees => [{hello 18 0 36 Super User} {Jinzhu 18 0 36 Super Admin} {jinzhu 2 30 0 60 Super Dev}]jinzhu
Released under the MIT License.