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beginning of MIR

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This commit is contained in:
hkalbasi 2023-02-03 14:46:25 +03:30
parent b881deb66a
commit cd67589f63
41 changed files with 4452 additions and 702 deletions
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13
crates/hir-ty/src/layout/adt.rs
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@ -76,17 +76,8 @@ pub fn layout_of_adt_query(
|min, max| Integer::repr_discr(&dl, &repr, min, max).unwrap_or((Integer::I8, false)),
variants.iter_enumerated().filter_map(|(id, _)| {
let AdtId::EnumId(e) = def else { return None };
let d = match db
.const_eval_variant(EnumVariantId { parent: e, local_id: id.0 })
.ok()?
{
crate::consteval::ComputedExpr::Literal(l) => match l {
hir_def::expr::Literal::Int(i, _) => i,
hir_def::expr::Literal::Uint(i, _) => i as i128,
_ => return None,
},
_ => return None,
};
let d =
db.const_eval_discriminant(EnumVariantId { parent: e, local_id: id.0 }).ok()?;
Some((id, d))
}),
// FIXME: The current code for niche-filling relies on variant indices

9
crates/hir-ty/src/layout/tests.rs
View file

@ -82,8 +82,8 @@ fn eval_expr(ra_fixture: &str, minicore: &str) -> Result<Layout, LayoutError> {
#[track_caller]
fn check_size_and_align(ra_fixture: &str, minicore: &str, size: u64, align: u64) {
let l = eval_goal(ra_fixture, minicore).unwrap();
assert_eq!(l.size.bytes(), size);
assert_eq!(l.align.abi.bytes(), align);
assert_eq!(l.size.bytes(), size, "size mismatch");
assert_eq!(l.align.abi.bytes(), align, "align mismatch");
}
#[track_caller]
@ -300,4 +300,9 @@ fn enums_with_discriminants() {
C, // implicitly becomes 256, so we need two bytes
}
}
size_and_align! {
enum Goal {
A = 1, // This one is (perhaps surprisingly) zero sized.
}
}
}