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Correct imports of Encode and abilities across modules

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Ayaz Hafiz 2022-05-11 12:36:29 -04:00
parent 47c9959786
commit 312cdd0b70
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GPG key ID: 0E2A37416A25EF58
15 changed files with 375 additions and 214 deletions
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14
compiler/solve/src/ability.rs
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@ -1,4 +1,5 @@
use roc_can::abilities::AbilitiesStore;
use roc_error_macros::internal_error;
use roc_module::symbol::Symbol;
use roc_region::all::{Loc, Region};
use roc_types::subs::Subs;
@ -20,7 +21,7 @@ pub enum AbilityImplError {
BadPattern(Region, PatternCategory, Variable),
}
#[derive(Default)]
#[derive(Default, Debug)]
pub struct DeferredMustImplementAbility(Vec<(MustImplementConstraints, AbilityImplError)>);
impl DeferredMustImplementAbility {
@ -201,9 +202,14 @@ pub fn resolve_ability_specialization(
.expect("Not an ability member symbol");
let snapshot = subs.snapshot();
instantiate_rigids(subs, member_def.signature_var);
let (_, must_implement_ability) =
unify(subs, specialization_var, member_def.signature_var, Mode::EQ).expect_success(
let signature_var = member_def
.signature_var()
.unwrap_or_else(|| internal_error!("Signature var not resolved for {:?}", ability_member));
instantiate_rigids(subs, signature_var);
let (_, must_implement_ability) = unify(subs, specialization_var, signature_var, Mode::EQ)
.expect_success(
"If resolving a specialization, the specialization must be known to typecheck.",
);