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core: Allow implicit promotions of integral literals 

It should not matter, since it is the value of the literal that matters
with respect to the const generic variable.
pull/371/head
David Mak 2023-12-20 18:30:44 +08:00
parent bd792904f9
commit e435b25756
1 changed files with 17 additions and 1 deletions
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18
nac3core/src/typecheck/typedef/mod.rs
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@ -789,7 +789,23 @@ impl Unifier {
(TLiteral { values: val1, .. }, TLiteral { values: val2, .. }) => {
for (v1, v2) in zip(val1, val2) {
if v1 != v2 {
return self.incompatible_types(a, b)
let symbol_value_to_int = |value: &SymbolValue| -> Option<i128> {
match value {
SymbolValue::I32(v) => Some(*v as i128),
SymbolValue::I64(v) => Some(*v as i128),
SymbolValue::U32(v) => Some(*v as i128),
SymbolValue::U64(v) => Some(*v as i128),
_ => None,
}
};
// Try performing integer promotion on literals
let v1i = symbol_value_to_int(v1);
let v2i = symbol_value_to_int(v2);
if v1i != v2i {
return self.incompatible_types(a, b)
}
}
}