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First pass

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This commit is contained in:
ayazhafiz 2022-02-04 08:46:27 -05:00
parent d25e891fb0
commit 5e0d90ac53
8 changed files with 391 additions and 263 deletions
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45
compiler/solve/src/solve.rs
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@ -689,6 +689,51 @@ fn solve(
}
}
}
EqBoundedRange(typ, expect_one_of, category, region) => {
let actual = type_to_var(subs, rank, pools, cached_aliases, typ);
let mut it = expect_one_of.get_type_ref().iter().peekable();
while let Some(expected) = it.next() {
let expected = type_to_var(subs, rank, pools, cached_aliases, expected);
let snapshot = subs.snapshot();
match unify(subs, actual, expected, Mode::Eq) {
Success(vars) => {
introduce(subs, rank, pools, &vars);
return state;
}
Failure(..) if it.peek().is_some() => {
subs.rollback_to(snapshot);
continue;
}
Failure(vars, actual_type, expected_type) => {
// This is the last type we could have tried and failed; record the error.
introduce(subs, rank, pools, &vars);
let problem = TypeError::BadExpr(
*region,
category.clone(),
actual_type,
expect_one_of.clone().replace(expected_type),
);
problems.push(problem);
return state;
}
BadType(vars, problem) => {
introduce(subs, rank, pools, &vars);
problems.push(TypeError::BadType(problem));
return state;
}
}
}
unreachable!()
}
}
}