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Instantiate erased lambdas

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This commit is contained in:
Ayaz Hafiz 2023-06-22 20:28:04 -05:00
parent fb4c550a29
commit 1d6f0d3d3f
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2 changed files with 45 additions and 18 deletions
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17
crates/compiler/solve/src/to_var.rs
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@ -23,7 +23,7 @@ use crate::{
ability::{AbilityImplError, ObligationCache},
deep_copy::deep_copy_var_in,
env::InferenceEnv,
Aliases,
Aliases, FunctionKind,
};
std::thread_local! {
@ -346,9 +346,18 @@ pub(crate) fn type_to_var_help(
name,
ambient_function,
} => {
let captures = types.get_type_arguments(typ_index);
let union_lambdas =
create_union_lambda(env, rank, arena, types, name, captures, &mut stack);
let union_lambdas = match env.function_kind {
FunctionKind::LambdaSet => {
let captures = types.get_type_arguments(typ_index);
create_union_lambda(env, rank, arena, types, name, captures, &mut stack)
}
FunctionKind::Erased => {
// NB we cannot use a constant variable for the erased lambda set (yet)
// because we still need to link it to the ambient function. In the future,
// perhaps we could.
UnionLambdas::from_slices(Subs::LAMBDA_NAME_ERASED, SubsSlice::empty())
}
};
let content = Content::LambdaSet(subs::LambdaSet {
solved: union_lambdas,