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| -rw-r--r-- | crates/hir-def/src/data/adt.rs | 2 | ||||
| -rw-r--r-- | crates/hir-ty/src/layout/tests.rs | 30 |
2 files changed, 31 insertions, 1 deletions
diff --git a/crates/hir-def/src/data/adt.rs b/crates/hir-def/src/data/adt.rs index b163112db9..a95b78614e 100644 --- a/crates/hir-def/src/data/adt.rs +++ b/crates/hir-def/src/data/adt.rs @@ -128,7 +128,7 @@ fn parse_repr_tt(tt: &Subtree) -> Option<ReprOptions> { } else { 0 }; - let pack = Align::from_bytes(pack).unwrap(); + let pack = Align::from_bytes(pack).unwrap_or(Align::ONE); min_pack = Some(if let Some(min_pack) = min_pack { min_pack.min(pack) } else { pack }); ReprFlags::empty() diff --git a/crates/hir-ty/src/layout/tests.rs b/crates/hir-ty/src/layout/tests.rs index 9937113685..ef0be7ab2d 100644 --- a/crates/hir-ty/src/layout/tests.rs +++ b/crates/hir-ty/src/layout/tests.rs @@ -221,6 +221,36 @@ fn recursive() { } #[test] +fn repr_packed() { + size_and_align! { + #[repr(packed)] + struct Goal; + } + size_and_align! { + #[repr(packed(2))] + struct Goal; + } + size_and_align! { + #[repr(packed(4))] + struct Goal; + } + size_and_align! { + #[repr(packed)] + struct Goal(i32); + } + size_and_align! { + #[repr(packed(2))] + struct Goal(i32); + } + size_and_align! { + #[repr(packed(4))] + struct Goal(i32); + } + + check_size_and_align("#[repr(packed(5))] struct Goal(i32);", "", 4, 1); +} + +#[test] fn generic() { size_and_align! { struct Pair<A, B>(A, B); |