diff options
Diffstat (limited to 'src/test/ui/associated-consts/defaults-not-assumed-pass.rs')
-rw-r--r-- | src/test/ui/associated-consts/defaults-not-assumed-pass.rs | 42 |
1 files changed, 0 insertions, 42 deletions
diff --git a/src/test/ui/associated-consts/defaults-not-assumed-pass.rs b/src/test/ui/associated-consts/defaults-not-assumed-pass.rs deleted file mode 100644 index c08e05c8a..000000000 --- a/src/test/ui/associated-consts/defaults-not-assumed-pass.rs +++ /dev/null @@ -1,42 +0,0 @@ -// run-pass - -trait Tr { - const A: u8 = 255; - - // This should not be a constant evaluation error (overflow). The value of - // `Self::A` must not be assumed to hold inside the trait. - const B: u8 = Self::A + 1; -} - -// An impl that doesn't override any constant will NOT cause a const eval error -// just because it's defined, but only if the bad constant is used anywhere. -// This matches the behavior without defaults. -impl Tr for () {} - -// An impl that overrides either constant with a suitable value will be fine. -impl Tr for u8 { - const A: u8 = 254; -} - -impl Tr for u16 { - const B: u8 = 0; -} - -impl Tr for u32 { - const A: u8 = 254; - const B: u8 = 0; -} - -fn main() { - assert_eq!(<() as Tr>::A, 255); - //assert_eq!(<() as Tr>::B, 0); // using this is an error - - assert_eq!(<u8 as Tr>::A, 254); - assert_eq!(<u8 as Tr>::B, 255); - - assert_eq!(<u16 as Tr>::A, 255); - assert_eq!(<u16 as Tr>::B, 0); - - assert_eq!(<u32 as Tr>::A, 254); - assert_eq!(<u32 as Tr>::B, 0); -} |