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change the return type of List.replace

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Folkert 2022-02-27 22:47:08 +01:00
parent 4d42d81c63
commit 78fe734113
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2 changed files with 34 additions and 42 deletions
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19
compiler/builtins/src/std.rs
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@ -1056,20 +1056,17 @@ pub fn types() -> MutMap<Symbol, (SolvedType, Region)> {
Box::new(result_type(flex(TVAR1), list_was_empty.clone())),
);
// replace : List elem, Nat, elem -> Result { list: List elem, value: elem } [ OutOfBounds ]*
// replace : List elem, Nat, elem -> { list: List elem, value: elem }
add_top_level_function_type!(
Symbol::LIST_REPLACE,
vec![list_type(flex(TVAR1)), nat_type(), flex(TVAR1)],
Box::new(result_type(
SolvedType::Record {
fields: vec![
("list".into(), RecordField::Required(list_type(flex(TVAR1)))),
("value".into(), RecordField::Required(flex(TVAR1))),
],
ext: Box::new(SolvedType::EmptyRecord),
},
index_out_of_bounds
)),
Box::new(SolvedType::Record {
fields: vec![
("list".into(), RecordField::Required(list_type(flex(TVAR1)))),
("value".into(), RecordField::Required(flex(TVAR1))),
],
ext: Box::new(SolvedType::EmptyRecord),
}),
);
// set : List elem, Nat, elem -> List elem