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fix openness inference for empty tag

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Anton-4 2024-07-06 16:29:10 +02:00
parent 3abc276937
commit 7180a93273
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2 changed files with 21 additions and 3 deletions
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22
crates/compiler/can/src/annotation.rs
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@ -327,6 +327,8 @@ pub(crate) fn canonicalize_annotation(
AnnotationFor::Opaque => CanPolarity::InOpaque,
};
//dbg!("111");
let typ = can_annotation_help(
env,
pol,
@ -339,6 +341,8 @@ pub(crate) fn canonicalize_annotation(
&mut references,
);
//dbg!(&typ);
Annotation {
typ,
introduced_variables,
@ -955,6 +959,10 @@ fn can_annotation_help(
}
}
TagUnion { tags, ext, .. } => {
//dbg!(tags);
//dbg!(ext);
let (ext_type, is_implicit_openness) = can_extension_type(
env,
pol,
@ -967,8 +975,12 @@ fn can_annotation_help(
roc_problem::can::ExtensionTypeKind::TagUnion,
);
//dbg!(&ext_type);
//dbg!(is_implicit_openness);
if tags.is_empty() {
match ext {
//dbg!("emptyy");
/*match ext {
Some(_) => {
// just `a` does not mean the same as `[]`, so even
// if there are no fields, still make this a `TagUnion`,
@ -980,7 +992,12 @@ fn can_annotation_help(
}
None => Type::EmptyTagUnion,
}
}*/
Type::TagUnion(
Default::default(),
TypeExtension::from_type(ext_type, is_implicit_openness),
)
} else {
let mut tag_types = can_tags(
env,
@ -1173,6 +1190,7 @@ fn can_extension_type(
local_aliases,
references,
);
if valid_extension_type(shallow_dealias_with_scope(scope, &ext_type)) {
if matches!(loc_ann.extract_spaces().item, TypeAnnotation::Wildcard)
&& matches!(ext_problem_kind, ExtensionTypeKind::TagUnion)