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Make sure type variables bound to abilities are instantiated in aliases

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Closes #4259
This commit is contained in:
Ayaz Hafiz 2022-10-11 15:04:38 -05:00
parent 89a4522faa
commit 20e4295eea
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8 changed files with 435 additions and 66 deletions
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10
crates/compiler/can/src/def.rs
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@ -829,7 +829,15 @@ fn canonicalize_opaque<'a>(
type_arguments: alias
.type_variables
.iter()
.map(|_| Type::Variable(var_store.fresh()))
.map(|alias_var| {
Loc::at(
alias_var.region,
OptAbleType {
typ: Type::Variable(var_store.fresh()),
opt_ability: alias_var.value.opt_bound_ability,
},
)
})
.collect(),
lambda_set_variables: alias
.lambda_set_variables