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Unify import params on copied variable

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Agus Zubiaga 2024-11-05 18:10:01 -03:00
parent 544a5dcfec
commit 625a5425f4
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4 changed files with 42 additions and 2 deletions
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12
crates/compiler/solve/src/solve.rs
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@ -1403,7 +1403,7 @@ fn solve(
}
ImportParams(opt_provided, module_id, region) => {
match (module_params_vars.get(module_id), opt_provided) {
(Some(expected), Some(provided)) => {
(Some(expected_og), Some(provided)) => {
let actual = either_type_index_to_var(
env,
rank,
@ -1415,10 +1415,18 @@ fn solve(
*provided,
);
let expected = {
// Similar to Lookup, we need to unify on a copy of the module params variable
// Otherwise, this import might make it less general than it really is
let mut solve_env = env.as_solve_env();
let solve_env = &mut solve_env;
deep_copy_var_in(solve_env, rank, *expected_og, solve_env.arena)
};
match unify(
&mut env.uenv(),
actual,
*expected,
expected,
UnificationMode::EQ,
Polarity::OF_VALUE,
) {