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Give non-recursive single tag unions a payload

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Richard Feldman 2022-08-07 16:51:52 -04:00
parent 3adae16cff
commit 23b8ff896a
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2 changed files with 18 additions and 15 deletions
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12
crates/glue/src/rust_glue.rs
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@ -248,7 +248,11 @@ fn add_type(target_info: TargetInfo, id: TypeId, types: &Types, impls: &mut Impl
RocTagUnion::NonNullableUnwrapped { .. } => {
todo!();
}
RocTagUnion::SingleTagUnion { name, tag_name } => {
RocTagUnion::NonRecursiveSingleTag {
name,
tag_name,
payload: None,
} => {
// An enumeration with one tag is a zero-sized unit type, so
// represent it as a zero-sized struct (e.g. "struct Foo()").
let derive = derive_str(
@ -1407,7 +1411,7 @@ fn type_name(id: TypeId, types: &Types) -> String {
RocType::Struct { name, .. }
| RocType::TagUnionPayload { name, .. }
| RocType::TagUnion(RocTagUnion::NonRecursive { name, .. })
| RocType::TagUnion(RocTagUnion::SingleTagUnion { name, .. })
| RocType::TagUnion(RocTagUnion::NonRecursiveSingleTag { name, .. })
| RocType::TagUnion(RocTagUnion::Recursive { name, .. })
| RocType::TagUnion(RocTagUnion::Enumeration { name, .. })
| RocType::TagUnion(RocTagUnion::NullableWrapped { name, .. })
@ -2030,7 +2034,7 @@ fn cannot_derive_copy(roc_type: &RocType, types: &Types) -> bool {
| RocType::Bool
| RocType::Num(_)
| RocType::TagUnion(RocTagUnion::Enumeration { .. })
| RocType::TagUnion(RocTagUnion::SingleTagUnion { .. })
| RocType::TagUnion(RocTagUnion::NonRecursiveSingleTag { .. })
| RocType::Function { .. } => false,
RocType::RocStr
| RocType::RocList(_)
@ -2082,7 +2086,7 @@ fn has_float_help(roc_type: &RocType, types: &Types, do_not_recurse: &[TypeId])
| RocType::RocStr
| RocType::Bool
| RocType::TagUnion(RocTagUnion::Enumeration { .. })
| RocType::TagUnion(RocTagUnion::SingleTagUnion { .. })
| RocType::TagUnion(RocTagUnion::NonRecursiveSingleTag { .. })
| RocType::Function { .. } => false,
RocType::RocList(id) | RocType::RocSet(id) | RocType::RocBox(id) => {
has_float_help(types.get_type(*id), types, do_not_recurse)