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Remove PatKind::Wild

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This commit is contained in:
Zalathar 2024-08-03 20:45:12 +10:00
parent f53eb2724d
commit 92eb159d04
2 changed files with 4 additions and 5 deletions
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6
compiler/rustc_pattern_analysis/src/rustc.rs
View File

@ -780,7 +780,7 @@ fn hoist_pat_range(&self, range: &IntRange, ty: RevealedTy<'tcx>) -> print::Pat<
use MaybeInfiniteInt::*;
let cx = self;
let kind = if matches!((range.lo, range.hi), (NegInfinity, PosInfinity)) {
PatKind::Wild
PatKind::Print("_".to_string())
} else if range.is_singleton() {
let lo = cx.hoist_pat_range_bdy(range.lo, ty);
let value = lo.as_finite().unwrap();
@ -890,7 +890,9 @@ fn hoist_witness_pat(&self, pat: &WitnessPat<'p, 'tcx>) -> print::Pat<'tcx> {
}
&Str(value) => PatKind::Constant { value },
Never if self.tcx.features().never_patterns => PatKind::Never,
Never | Wildcard | NonExhaustive | Hidden | PrivateUninhabited => PatKind::Wild,
Never | Wildcard | NonExhaustive | Hidden | PrivateUninhabited => {
PatKind::Print("_".to_string())
}
Missing { .. } => bug!(
"trying to convert a `Missing` constructor into a `Pat`; this is probably a bug,
`Missing` should have been processed in `apply_constructors`"

3
compiler/rustc_pattern_analysis/src/rustc/print.rs
View File

@ -32,8 +32,6 @@ pub(crate) struct Pat<'tcx> {
#[derive(Clone, Debug)]
pub(crate) enum PatKind<'tcx> {
Wild,
StructLike {
enum_info: EnumInfo<'tcx>,
subpatterns: Vec<FieldPat<'tcx>>,
@ -69,7 +67,6 @@ pub(crate) enum PatKind<'tcx> {
impl<'tcx> fmt::Display for Pat<'tcx> {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
match self.kind {
PatKind::Wild => write!(f, "_"),
PatKind::Never => write!(f, "!"),
PatKind::Box { ref subpattern } => write!(f, "box {subpattern}"),
PatKind::StructLike { ref enum_info, ref subpatterns } => {