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Diffstat (limited to 'tests/ui/consts/const-blocks/const-repeat.rs')
-rw-r--r-- | tests/ui/consts/const-blocks/const-repeat.rs | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/tests/ui/consts/const-blocks/const-repeat.rs b/tests/ui/consts/const-blocks/const-repeat.rs new file mode 100644 index 000000000..65d02317d --- /dev/null +++ b/tests/ui/consts/const-blocks/const-repeat.rs @@ -0,0 +1,27 @@ +// run-pass + +// Repeating a *constant* of non-Copy type (not just a constant expression) is already stable. + +const EMPTY: Vec<i32> = Vec::new(); + +pub fn bar() -> [Vec<i32>; 2] { + [EMPTY; 2] +} + +struct Bomb; + +impl Drop for Bomb { + fn drop(&mut self) { + panic!("BOOM!"); + } +} + +const BOOM: Bomb = Bomb; + +fn main() { + let _x = bar(); + + // Make sure the destructor does not get called for empty arrays. `[CONST; N]` should + // instantiate (and then later drop) the const exactly `N` times. + let _x = [BOOM; 0]; +} |