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add Num.toNat

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This commit is contained in:
Brendan Hansknecht 2022-03-11 11:13:01 -08:00
parent 4e3c3ee045
commit d681062c63
6 changed files with 48 additions and 2 deletions
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16
compiler/builtins/src/std.rs
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@ -592,7 +592,21 @@ pub fn types() -> MutMap<Symbol, (SolvedType, Region)> {
add_top_level_function_type!(
Symbol::NUM_TO_U128_CHECKED,
vec![int_type(flex(TVAR1))],
Box::new(result_type(u128_type(), out_of_bounds)),
Box::new(result_type(u128_type(), out_of_bounds.clone())),
);
// toNat : Int * -> Nat
add_top_level_function_type!(
Symbol::NUM_TO_NAT,
vec![int_type(flex(TVAR1))],
Box::new(nat_type()),
);
// toNatChecked : Int * -> Result Nat [ OutOfBounds ]*
add_top_level_function_type!(
Symbol::NUM_TO_NAT_CHECKED,
vec![int_type(flex(TVAR1))],
Box::new(result_type(nat_type(), out_of_bounds)),
);
// toStr : Num a -> Str