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Change pretty-printing of unbound variable to '?' 

Until now, we would pretty-print unbound variable the same way we would pretty-print generics. This turned out to be very confusing when debugging, as they have a quite different semantic and it helps to visualize unbound types in definitions.
This commit is contained in:
KtorZ 2024-05-05 13:30:42 +02:00 committed by Kasey
parent ef70c6b8a8
commit 7b71389519
1 changed files with 4 additions and 3 deletions
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7
crates/aiken-lang/src/tipo/pretty.rs
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@ -123,7 +123,8 @@ impl Printer {
fn type_var_doc<'a>(&mut self, typ: &TypeVar) -> Document<'a> {
match typ {
TypeVar::Link { tipo: ref typ, .. } => self.print(typ),
TypeVar::Unbound { id, .. } | TypeVar::Generic { id, .. } => self.generic_type_var(*id),
TypeVar::Generic { id, .. } => self.generic_type_var(*id),
TypeVar::Unbound { .. } => "?".to_doc(),
}
}
@ -473,7 +474,7 @@ mod tests {
tipo: Rc::new(RefCell::new(TypeVar::Unbound { id: 2231 })),
alias: None,
},
"a",
"?",
);
assert_string!(
function(
@ -486,7 +487,7 @@ mod tests {
alias: None,
}),
),
"fn(a) -> b",
"fn(?) -> ?",
);
assert_string!(
function(