language-servers/roc
1
0
Fork 0
mirror of https://github.com/roc-lang/roc.git synced 2025-07-24 06:55:15 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 6

properly unify ingested file type variable

Browse source
This commit is contained in:
Brendan Hansknecht 2023-04-09 09:18:04 -07:00
parent fdf8bc6094
commit 165ffcf38d
No known key found for this signature in database
GPG key ID: 0EA784685083E75B
1 changed files with 28 additions and 7 deletions
Download patch file Download diff file Expand all files Collapse all files

35
crates/compiler/solve/src/solve.rs
View file

@ -1785,7 +1785,12 @@ fn solve(
);
let snapshot = subs.snapshot();
if let Success { .. } = unify(
if let Success {
vars,
must_implement_ability,
lambda_sets_to_specialize,
extra_metadata: _,
} = unify(
&mut UEnv::new(subs),
actual,
Variable::LIST_U8,
@ -1793,12 +1798,17 @@ fn solve(
Polarity::OF_VALUE,
) {
// List U8 always valid.
subs.rollback_to(snapshot);
introduce(subs, rank, pools, &vars);
debug_assert!(
must_implement_ability.is_empty() && lambda_sets_to_specialize.is_empty(),
"List U8 will never need to implement abilities or specialize lambda sets"
);
state
} else {
subs.rollback_to(snapshot);
let snapshot = subs.snapshot();
// We explicitly match on the last unify to get the type in the case it errors.
match unify(
&mut UEnv::new(subs),
@ -1807,7 +1817,19 @@ fn solve(
Mode::EQ,
Polarity::OF_VALUE,
) {
Success { .. } => {
Success {
vars,
must_implement_ability,
lambda_sets_to_specialize,
extra_metadata: _,
} => {
introduce(subs, rank, pools, &vars);
debug_assert!(
must_implement_ability.is_empty() && lambda_sets_to_specialize.is_empty(),
"Str will never need to implement abilities or specialize lambda sets"
);
// Str only valid if valid utf8.
if let Err(err) = std::str::from_utf8(bytes) {
let problem =
@ -1815,11 +1837,10 @@ fn solve(
problems.push(problem);
}
subs.rollback_to(snapshot);
state
}
Failure(_, actual_type, _, _) => {
subs.rollback_to(snapshot);
Failure(vars, actual_type, _, _) => {
introduce(subs, rank, pools, &vars);
let problem = TypeError::IngestedFileUnsupportedType(
file_path.clone(),