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Simplify Default for tuples

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DaniPopes 2023-11-27 06:11:25 +01:00
parent 48cfbe0cdf
commit 9ae3213fcb
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GPG key ID: 0F09640DDB7AC692
1 changed files with 6 additions and 9 deletions
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15
library/core/src/tuple.rs
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@ -50,22 +50,19 @@ macro_rules! tuple_impls {
maybe_tuple_doc! {
$($T)+ @
#[unstable(feature = "structural_match", issue = "31434")]
impl<$($T: ConstParamTy),+> ConstParamTy for ($($T,)+)
{}
impl<$($T: ConstParamTy),+> ConstParamTy for ($($T,)+) {}
}
maybe_tuple_doc! {
$($T)+ @
#[unstable(feature = "structural_match", issue = "31434")]
impl<$($T),+> StructuralPartialEq for ($($T,)+)
{}
impl<$($T),+> StructuralPartialEq for ($($T,)+) {}
}
maybe_tuple_doc! {
$($T)+ @
#[unstable(feature = "structural_match", issue = "31434")]
impl<$($T),+> StructuralEq for ($($T,)+)
{}
impl<$($T),+> StructuralEq for ($($T,)+) {}
}
maybe_tuple_doc! {
@ -118,7 +115,7 @@ macro_rules! tuple_impls {
impl<$($T: Default),+> Default for ($($T,)+) {
#[inline]
fn default() -> ($($T,)+) {
($({ let x: $T = Default::default(); x},)+)
($($T::default(),)+)
}
}
}
@ -196,7 +193,7 @@ macro_rules! lexical_partial_cmp {
($a:expr, $b:expr, $($rest_a:expr, $rest_b:expr),+) => {
match ($a).partial_cmp(&$b) {
Some(Equal) => lexical_partial_cmp!($($rest_a, $rest_b),+),
ordering => ordering
ordering => ordering
}
};
($a:expr, $b:expr) => { ($a).partial_cmp(&$b) };
@ -206,7 +203,7 @@ macro_rules! lexical_cmp {
($a:expr, $b:expr, $($rest_a:expr, $rest_b:expr),+) => {
match ($a).cmp(&$b) {
Equal => lexical_cmp!($($rest_a, $rest_b),+),
ordering => ordering
ordering => ordering
}
};
($a:expr, $b:expr) => { ($a).cmp(&$b) };