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tweak and slightly extend box-box-trait test

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Ralf Jung
2019-11-07 08:55:59 +01:00
parent 4ddc37df7a
commit 8b1630cb3b
1 changed files with 3 additions and 5 deletions
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tests/run-pass/box_box_trait.rs
+3 -5
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@@ -1,5 +1,3 @@
#![feature(box_syntax)]
struct DroppableStruct;
static mut DROPPED: bool = false;
@@ -13,7 +11,6 @@ fn drop(&mut self) {
trait MyTrait { fn dummy(&self) { } }
impl MyTrait for Box<DroppableStruct> {}
#[allow(dead_code)]
struct Whatever { w: Box<dyn MyTrait+'static> }
impl Whatever {
@@ -24,8 +21,9 @@ fn new(w: Box<dyn MyTrait+'static>) -> Whatever {
fn main() {
{
let f: Box<_> = box DroppableStruct;
let _a = Whatever::new(box f as Box<dyn MyTrait>);
let f = Box::new(DroppableStruct);
let a = Whatever::new(Box::new(f) as Box<dyn MyTrait>);
a.w.dummy();
}
assert!(unsafe { DROPPED });
}