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fix enum and bool pattern match suggestions

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This commit is contained in:
Folkert 2020-04-12 21:19:50 +02:00
parent 7632a4b484
commit c69b0d69e5
6 changed files with 136 additions and 50 deletions
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33
compiler/mono/src/pattern.rs
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@ -42,33 +42,12 @@ fn simplify<'a>(pattern: &crate::expr::Pattern<'a>) -> Pattern {
// To make sure these are exhaustive, we have to "fake" a union here
// TODO: use the hash or some other integer to discriminate between constructors
BitLiteral(b) => {
let union = Union {
alternatives: vec![
Ctor {
name: TagName::Global("False".into()),
arity: 0,
},
Ctor {
name: TagName::Global("True".into()),
arity: 0,
},
],
};
Ctor(union, TagName::Global(format!("{}", b).into()), vec![])
}
EnumLiteral { tag_id, enum_size } => {
let alternatives = (0..*enum_size)
.map(|id| Ctor {
name: TagName::Global(format!("{}", id).into()),
arity: 0,
})
.collect();
let union = Union { alternatives };
Ctor(union, TagName::Global(format!("{}", tag_id).into()), vec![])
}
BitLiteral {
tag_name, union, ..
} => Ctor(union.clone(), tag_name.clone(), vec![]),
EnumLiteral {
tag_name, union, ..
} => Ctor(union.clone(), tag_name.clone(), vec![]),
Underscore => Anything,
Identifier(_) => Anything,