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Simplify FullInt Ord impl

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`cmp_s_u` is a tiny helper function only used by `cmp` and isn't useful on
it's own. Making it a nested function of `cmp` makes that clear and as a
bonus it's easier to call and doesn't require a `#[must_use]` attribute.
This commit is contained in:
Michael Wright 2021-10-30 06:22:19 +02:00
parent 4a86156c66
commit e8c4046841
1 changed files with 6 additions and 9 deletions
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15
clippy_utils/src/consts.rs
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@ -229,13 +229,6 @@ pub enum FullInt {
U(u128),
}
impl FullInt {
#[must_use]
fn cmp_s_u(s: i128, u: u128) -> Ordering {
u128::try_from(s).map_or(Ordering::Less, |x| x.cmp(&u))
}
}
impl PartialEq for FullInt {
#[must_use]
fn eq(&self, other: &Self) -> bool {
@ -255,11 +248,15 @@ impl Ord for FullInt {
fn cmp(&self, other: &Self) -> Ordering {
use FullInt::{S, U};
fn cmp_s_u(s: i128, u: u128) -> Ordering {
u128::try_from(s).map_or(Ordering::Less, |x| x.cmp(&u))
}
match (*self, *other) {
(S(s), S(o)) => s.cmp(&o),
(U(s), U(o)) => s.cmp(&o),
(S(s), U(o)) => Self::cmp_s_u(s, o),
(U(s), S(o)) => Self::cmp_s_u(o, s).reverse(),
(S(s), U(o)) => cmp_s_u(s, o),
(U(s), S(o)) => cmp_s_u(o, s).reverse(),
}
}
}