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The first ability... compiles

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This commit is contained in:
Ayaz Hafiz 2022-04-14 16:50:41 -04:00
parent 6b4294307f
commit b79b351136
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7 changed files with 104 additions and 12 deletions
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14
compiler/solve/src/solve.rs
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@ -1,4 +1,4 @@
use crate::ability::{AbilityImplError, DeferredMustImplementAbility};
use crate::ability::{type_implementing_member, AbilityImplError, DeferredMustImplementAbility};
use bumpalo::Bump;
use roc_can::abilities::{AbilitiesStore, MemberSpecialization};
use roc_can::constraint::Constraint::{self, *};
@ -1346,16 +1346,8 @@ fn check_ability_specialization(
// First, figure out and register for what type does this symbol specialize
// the ability member.
let mut ability_implementations_for_specialization = must_implement_ability
.iter()
.filter(|mia| mia.ability == root_data.parent_ability)
.collect::<Vec<_>>();
ability_implementations_for_specialization.dedup();
debug_assert!(ability_implementations_for_specialization.len() == 1, "Multiple variables bound to an ability - this is ambiguous and should have been caught in canonicalization");
// This is a valid specialization! Record it.
let specialization_type = ability_implementations_for_specialization[0].typ;
let specialization_type =
type_implementing_member(&must_implement_ability, root_data.parent_ability);
let specialization = MemberSpecialization {
symbol,
region: symbol_loc_var.region,