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Fix default enum representation not being isize

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This commit is contained in:
Lukas Wirth 2022-09-20 17:43:29 +02:00
parent 2119c1f351
commit 9bf386f4c0
3 changed files with 69 additions and 22 deletions
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2
crates/hir-def/src/adt.rs
View file

@ -223,7 +223,7 @@ impl EnumData {
pub fn variant_body_type(&self) -> Either<BuiltinInt, BuiltinUint> {
match self.repr {
Some(ReprData { kind: ReprKind::BuiltinInt { builtin, .. }, .. }) => builtin,
_ => Either::Right(BuiltinUint::U32),
_ => Either::Left(BuiltinInt::Isize),
}
}
}

12
crates/hir-ty/src/tests.rs
View file

@ -461,6 +461,18 @@ fn visit_module(
let body = db.body(def);
visit_body(db, &body, cb);
}
ModuleDefId::AdtId(hir_def::AdtId::EnumId(it)) => {
db.enum_data(it)
.variants
.iter()
.map(|(id, _)| hir_def::EnumVariantId { parent: it, local_id: id })
.for_each(|it| {
let def = it.into();
cb(def);
let body = db.body(def);
visit_body(db, &body, cb);
});
}
ModuleDefId::TraitId(it) => {
let trait_data = db.trait_data(it);
for &(_, item) in trait_data.items.iter() {

35
crates/hir-ty/src/tests/simple.rs
View file

@ -1751,6 +1751,41 @@ fn infer_static() {
);
}
#[test]
fn infer_enum_variant() {
check_infer(
r#"
enum Foo {
A = 15,
B = Foo::A as isize + 1
}
"#,
expect![[r#"
19..21 '15': isize
31..37 'Foo::A': Foo
31..46 'Foo::A as isize': isize
31..50 'Foo::A...ze + 1': isize
49..50 '1': isize
"#]],
);
check_infer(
r#"
#[repr(u32)]
enum Foo {
A = 15,
B = Foo::A as u32 + 1
}
"#,
expect![[r#"
32..34 '15': u32
44..50 'Foo::A': Foo
44..57 'Foo::A as u32': u32
44..61 'Foo::A...32 + 1': u32
60..61 '1': u32
"#]],
);
}
#[test]
fn shadowing_primitive() {
check_types(