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Index into constraining via trait

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Ayaz Hafiz 2022-11-07 17:07:58 -06:00
parent 24b6d4a3a9
commit 51d813dae2
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3 changed files with 25 additions and 9 deletions
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10
crates/compiler/constrain/src/expr.rs
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@ -441,7 +441,7 @@ pub fn constrain_expr(
}
Var(symbol, variable) => {
// Save the expectation in the variable, then lookup the symbol's type in the environment
let expected_type = *constraints.expectations[expected.index()].get_type_ref();
let expected_type = *constraints[expected].get_type_ref();
let store_expected = constraints.store(expected_type, *variable, file!(), line!());
let lookup_constr = constraints.lookup(*symbol, expected, region);
@ -451,7 +451,7 @@ pub fn constrain_expr(
&AbilityMember(symbol, specialization_id, specialization_var) => {
// Save the expectation in the `specialization_var` so we know what to specialize, then
// lookup the member in the environment.
let expected_type = *constraints.expectations[expected.index()].get_type_ref();
let expected_type = *constraints[expected].get_type_ref();
let store_expected =
constraints.store(expected_type, specialization_var, file!(), line!());
@ -636,7 +636,7 @@ pub fn constrain_expr(
branch_cons.push(cond_var_is_bool_con);
let expected = constraints.expectations[expected.index()].clone();
let expected = constraints[expected].clone();
match expected {
FromAnnotation(name, arity, ann_source, tipe) => {
let num_branches = branches.len() + 1;
@ -860,7 +860,7 @@ pub fn constrain_expr(
when_branch,
expected_pattern,
branch_expr_reason(
&constraints.expectations[expected.index()],
&constraints[expected],
HumanIndex::zero_based(index),
when_branch.value.region,
),
@ -1446,7 +1446,7 @@ pub fn constrain_expr(
// Instead, trivially equate the expected type to itself. This will never yield
// unification errors but it will catch errors in type translation, including ability
// obligations.
let trivial_type = *constraints.expectations[expected.index()].get_type_ref();
let trivial_type = *constraints[expected].get_type_ref();
constraints.equal_types(trivial_type, expected, Category::Unknown, region)
}
}