clone-fields
[Release docs]
[Master docs]
Fields-wise types cloning. Nothing more, nothing less.
use clone_fields::{CloneFields, CloneInto, CloneFrom};
#[derive(PartialEq, Debug, CloneFields)]
#[destinations("External")]
struct Original<'a, T: Clone> {
field1: &'a i64,
field2: T,
nested: OriginalNested,
}
#[derive(PartialEq, Debug, CloneFields)]
#[destinations("ExternalNested", "ExternalNested2")]
struct OriginalNested {
value: i32,
}
struct External<'a, T: Clone> {
field1: &'a i64,
field2: T,
nested: ExternalNested,
}
struct ExternalNested {
value: i32,
}
struct ExternalNested2 {
value: i32,
}
fn main() {
let obj: Original<_> = Original {
field1: &0,
field2: String::from("lol"),
nested: OriginalNested { value: 15 }
};
let cloned: External<_> = obj.clone_into();
assert_eq!(obj.field1, cloned.field1);
assert_eq!(obj.field2, cloned.field2);
assert_eq!(obj.nested.value, cloned.nested.value);
let cloned2 = Original::clone_from(&cloned);
assert_eq!(cloned.field1, cloned2.field1);
assert_eq!(cloned.field2, cloned2.field2);
assert_eq!(obj, cloned2);
}
License: MIT/Apache-2.0