29 lines
793 B
Rust
29 lines
793 B
Rust
// run-pass
|
|
|
|
use std::mem;
|
|
|
|
struct Trivial(u8, f32);
|
|
|
|
struct NonTrivial(u8, String);
|
|
|
|
const CONST_U8: bool = mem::needs_drop::<u8>();
|
|
const CONST_STRING: bool = mem::needs_drop::<String>();
|
|
const CONST_TRIVIAL: bool = mem::needs_drop::<Trivial>();
|
|
const CONST_NON_TRIVIAL: bool = mem::needs_drop::<NonTrivial>();
|
|
|
|
static STATIC_U8: bool = mem::needs_drop::<u8>();
|
|
static STATIC_STRING: bool = mem::needs_drop::<String>();
|
|
static STATIC_TRIVIAL: bool = mem::needs_drop::<Trivial>();
|
|
static STATIC_NON_TRIVIAL: bool = mem::needs_drop::<NonTrivial>();
|
|
|
|
fn main() {
|
|
assert!(!CONST_U8);
|
|
assert!(CONST_STRING);
|
|
assert!(!CONST_TRIVIAL);
|
|
assert!(CONST_NON_TRIVIAL);
|
|
|
|
assert!(!STATIC_U8);
|
|
assert!(STATIC_STRING);
|
|
assert!(!STATIC_TRIVIAL);
|
|
assert!(STATIC_NON_TRIVIAL);
|
|
}
|