[rustc.git] / src / test / ui / box-into-boxed-slice-fail.rs

// ignore-tidy-linelength
#![feature(box_into_boxed_slice)]

use std::boxed::Box;
use std::fmt::Debug;
fn main() {
    let boxed_slice = Box::new([1,2,3]) as Box<[u8]>;
    let _ = Box::into_boxed_slice(boxed_slice);
    //~^ ERROR the size for values of type `[u8]` cannot be known at compilation time
    //~^^ ERROR the size for values of type `[u8]` cannot be known at compilation time
    let boxed_trait: Box<dyn Debug> = Box::new(5u8);
    let _ = Box::into_boxed_slice(boxed_trait);
    //~^ ERROR the size for values of type `dyn std::fmt::Debug` cannot be known at compilation time
    //~^^ ERROR the size for values of type `dyn std::fmt::Debug` cannot be known at compilation time
}
Commit	Line	Data
f9f354fc XL	1	// ignore-tidy-linelength
	2	#![feature(box_into_boxed_slice)]
	3
	4	use std::boxed::Box;
	5	use std::fmt::Debug;
	6	fn main() {
	7	let boxed_slice = Box::new([1,2,3]) as Box<[u8]>;
	8	let _ = Box::into_boxed_slice(boxed_slice);
	9	//~^ ERROR the size for values of type `[u8]` cannot be known at compilation time
	10	//~^^ ERROR the size for values of type `[u8]` cannot be known at compilation time
	11	let boxed_trait: Box<dyn Debug> = Box::new(5u8);
	12	let _ = Box::into_boxed_slice(boxed_trait);
	13	//~^ ERROR the size for values of type `dyn std::fmt::Debug` cannot be known at compilation time
	14	//~^^ ERROR the size for values of type `dyn std::fmt::Debug` cannot be known at compilation time
	15	}