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Remove PatKind::Box

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This commit is contained in:
Zalathar 2024-08-03 20:48:52 +10:00
parent ed3e38f336
commit 15cc0e1b5c
2 changed files with 1 additions and 6 deletions
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2
compiler/rustc_pattern_analysis/src/rustc.rs
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@ -832,7 +832,7 @@ fn hoist_witness_pat(&self, pat: &WitnessPat<'p, 'tcx>) -> print::Pat<'tcx> {
Struct if pat.ty().is_box() => {
// Outside of the `alloc` crate, the only way to create a struct pattern
// of type `Box` is to use a `box` pattern via #[feature(box_patterns)].
PatKind::Box { subpattern: hoist(&pat.fields[0]) }
PatKind::Print(format!("box {}", hoist(&pat.fields[0])))
}
Struct | Variant(_) | UnionField => {
let enum_info = match *pat.ty().kind() {

5
compiler/rustc_pattern_analysis/src/rustc/print.rs
View File

@ -32,10 +32,6 @@ pub(crate) struct Pat<'tcx> {
#[derive(Clone, Debug)]
pub(crate) enum PatKind<'tcx> {
Box {
subpattern: Box<Pat<'tcx>>,
},
Deref {
subpattern: Box<Pat<'tcx>>,
},
@ -63,7 +59,6 @@ impl<'tcx> fmt::Display for Pat<'tcx> {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
match self.kind {
PatKind::Never => write!(f, "!"),
PatKind::Box { ref subpattern } => write!(f, "box {subpattern}"),
PatKind::Deref { ref subpattern } => write_ref_like(f, self.ty, subpattern),
PatKind::Constant { value } => write!(f, "{value}"),
PatKind::Range(ref range) => write!(f, "{range}"),