bjoernager/rust
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Introduce DotDotPos.

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This shrinks `hir::Pat` from 88 to 72 bytes.
This commit is contained in:
Nicholas Nethercote 2022-09-01 13:29:57 +10:00
parent 4314615ff8
commit e67f39f8bc
15 changed files with 85 additions and 47 deletions
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6
compiler/rustc_hir/src/pat_util.rs
View file

@ -35,7 +35,7 @@ pub trait EnumerateAndAdjustIterator {
fn enumerate_and_adjust(
self,
expected_len: usize,
gap_pos: Option<usize>,
gap_pos: hir::DotDotPos,
) -> EnumerateAndAdjust<Self>
where
Self: Sized;
@ -45,7 +45,7 @@ impl<T: ExactSizeIterator> EnumerateAndAdjustIterator for T {
fn enumerate_and_adjust(
self,
expected_len: usize,
gap_pos: Option<usize>,
gap_pos: hir::DotDotPos,
) -> EnumerateAndAdjust<Self>
where
Self: Sized,
@ -53,7 +53,7 @@ impl<T: ExactSizeIterator> EnumerateAndAdjustIterator for T {
let actual_len = self.len();
EnumerateAndAdjust {
enumerate: self.enumerate(),
gap_pos: gap_pos.unwrap_or(expected_len),
gap_pos: gap_pos.as_opt_usize().unwrap_or(expected_len),
gap_len: expected_len - actual_len,
}
}