rust/tests/ui/consts/const-needs_drop.rs
2024-02-16 20:02:50 +00:00

32 lines
834 B
Rust

//@ run-pass
use std::mem;
#[allow(dead_code)]
struct Trivial(u8, f32);
#[allow(dead_code)]
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);
}