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List.join passed LLVM validation

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This commit is contained in:
Chad Stearns 2020-08-02 15:35:03 -04:00
parent 6241578831
commit 4c7503d17e
2 changed files with 26 additions and 12 deletions
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23
compiler/builtins/src/unique.rs
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@ -729,6 +729,29 @@ pub fn types() -> MutMap<Symbol, (SolvedType, Region)> {
)
});
// join : Attr * (List (Attr * (List a)))
// -> Attr * (List a)
add_type(Symbol::LIST_JOIN, {
let_tvars! { a, star1, star2, star3 };
unique_function(
vec![SolvedType::Apply(
Symbol::ATTR_ATTR,
vec![
flex(star1),
SolvedType::Apply(Symbol::LIST_LIST, vec![list_type(star2, a)]),
],
)],
SolvedType::Apply(
Symbol::ATTR_ATTR,
vec![
boolean(star3),
SolvedType::Apply(Symbol::LIST_LIST, vec![flex(a)]),
],
),
)
});
// List.map does not need to check the container rule on the input list.
// There is no way in which this signature can cause unique values to be duplicated
//