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Diffstat (limited to 'src/test/ui/enum/enum-size-variance.rs')
-rw-r--r-- | src/test/ui/enum/enum-size-variance.rs | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/src/test/ui/enum/enum-size-variance.rs b/src/test/ui/enum/enum-size-variance.rs new file mode 100644 index 000000000..082bd0dcf --- /dev/null +++ b/src/test/ui/enum/enum-size-variance.rs @@ -0,0 +1,35 @@ +// run-pass + +#![warn(variant_size_differences)] +#![allow(dead_code)] + +// Note that the following test works because all fields of the enum variants are of the same size. +// If this test is modified and the reordering logic in librustc/ty/layout.rs kicks in, it fails. + +enum Enum1 { } + +enum Enum2 { A, B, C } + +enum Enum3 { D(i64), E, F } + +enum Enum4 { H(i64), I(i64), J } + +enum Enum5 { + L(i64, i64, i64, i64), //~ WARNING three times larger + M(i64), + N +} + +enum Enum6<T, U> { + O(T), + P(U), + Q(i64) +} + +#[allow(variant_size_differences)] +enum Enum7 { + R(i64, i64, i64, i64), + S(i64), + T +} +pub fn main() { } |