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Unify var-const

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greg 2019-02-23 01:18:15 -08:00
parent be175a2b75
commit 452f2ab188
1 changed files with 2 additions and 1 deletions
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schala-lang/language/src/typechecking.rs
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@ -359,7 +359,8 @@ impl<'a> TypeContext<'a> {
match (t1, t2) { match (t1, t2) {
(Const(ref c1), Const(ref c2)) if c1 == c2 => Ok(Const(c1.clone())), //choice of c1 is arbitrary I *think* (Const(ref c1), Const(ref c2)) if c1 == c2 => Ok(Const(c1.clone())), //choice of c1 is arbitrary I *think*
(Const(ref c1), Var(ref v2)) => { (Const(ref c1), Var(ref v2)) => {
//TODO flesh this out! self.unification_table.unify_var_value(v2.clone(), Some(c1.clone()))
.or_else(|_| TypeError::new(format!("Couldn't unify {:?} and {:?}", Const(c1.clone()), Var(*v2))))?;
Ok(Const(c1.clone())) Ok(Const(c1.clone()))
}, },
(a @ Var(_), b @ Const(_)) => self.unify(b, a), (a @ Var(_), b @ Const(_)) => self.unify(b, a),