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remove EmptyStruct from wrapper

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Folkert 2021-06-21 21:16:21 +02:00
parent ab8e0c756d
commit 4bbaa007f3
3 changed files with 43 additions and 7 deletions
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5
compiler/mono/src/ir.rs
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@ -1016,7 +1016,6 @@ pub enum Literal<'a> {
#[derive(Clone, Copy, Debug, PartialEq)]
pub enum Wrapped {
EmptyRecord,
SingleElementRecord,
RecordOrSingleTagUnion,
}
@ -1036,7 +1035,7 @@ impl Wrapped {
pub fn opt_from_layout(layout: &Layout<'_>) -> Option<Self> {
match layout {
Layout::Struct(fields) => match fields.len() {
0 => Some(Wrapped::EmptyRecord),
0 => unreachable!(),
1 => Some(Wrapped::SingleElementRecord),
_ => Some(Wrapped::RecordOrSingleTagUnion),
},
@ -1048,7 +1047,7 @@ impl Wrapped {
Recursive(tags) | NonRecursive(tags) => match tags {
[] => todo!("how to handle empty tag unions?"),
[single] => match single.len() {
0 => Some(Wrapped::EmptyRecord),
0 => unreachable!(),
1 => Some(Wrapped::SingleElementRecord),
_ => Some(Wrapped::RecordOrSingleTagUnion),
},