bendns' repos / rust-analyzer
Unnamed repository; edit this file 'description' to name the repository.
Diffstat (limited to 'crates/hir-ty/src/layout/tests.rs')
-rw-r--r--crates/hir-ty/src/layout/tests.rs38
1 files changed, 38 insertions, 0 deletions
diff --git a/crates/hir-ty/src/layout/tests.rs b/crates/hir-ty/src/layout/tests.rs
index 2b74f1a1a1..a3ced2bac0 100644
--- a/crates/hir-ty/src/layout/tests.rs
+++ b/crates/hir-ty/src/layout/tests.rs
@@ -464,3 +464,41 @@ fn enums_with_discriminants() {
}
}
}
+
+#[test]
+fn core_mem_discriminant() {
+ size_and_align! {
+ minicore: discriminant;
+ struct S(i32, u64);
+ struct Goal(core::mem::Discriminant<S>);
+ }
+ size_and_align! {
+ minicore: discriminant;
+ #[repr(u32)]
+ enum S {
+ A,
+ B,
+ C,
+ }
+ struct Goal(core::mem::Discriminant<S>);
+ }
+ size_and_align! {
+ minicore: discriminant;
+ enum S {
+ A(i32),
+ B(i64),
+ C(u8),
+ }
+ struct Goal(core::mem::Discriminant<S>);
+ }
+ size_and_align! {
+ minicore: discriminant;
+ #[repr(C, u16)]
+ enum S {
+ A(i32),
+ B(i64) = 200,
+ C = 1000,
+ }
+ struct Goal(core::mem::Discriminant<S>);
+ }
+}