mirror of https://github.com/rust-lang/rust
34 lines
748 B
Rust
34 lines
748 B
Rust
// Test that `Clone` is correctly implemented for builtin types.
|
|
// Also test that cloning an array or a tuple is done right, i.e.
|
|
// each component is cloned.
|
|
|
|
fn test_clone<T: Clone>(arg: T) {
|
|
let _ = arg.clone();
|
|
}
|
|
|
|
fn foo() {}
|
|
|
|
#[derive(Debug, PartialEq, Eq)]
|
|
struct S(i32);
|
|
|
|
impl Clone for S {
|
|
fn clone(&self) -> Self {
|
|
S(self.0 + 1)
|
|
}
|
|
}
|
|
|
|
#[test]
|
|
fn builtin_clone() {
|
|
test_clone(foo);
|
|
test_clone([1; 56]);
|
|
test_clone((1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1));
|
|
|
|
let a = [S(0), S(1), S(2)];
|
|
let b = [S(1), S(2), S(3)];
|
|
assert_eq!(b, a.clone());
|
|
|
|
let a = ((S(1), S(0)), ((S(0), S(0), S(1)), S(0)));
|
|
let b = ((S(2), S(1)), ((S(1), S(1), S(2)), S(1)));
|
|
assert_eq!(b, a.clone());
|
|
}
|