bjoernager/rust
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Add special Skip constructor

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This commit is contained in:
Nadrieril 2024-02-06 02:53:37 +01:00
parent ab06037269
commit 4f7f06777b
3 changed files with 15 additions and 22 deletions
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26
compiler/rustc_pattern_analysis/src/rustc.rs
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@ -249,16 +249,8 @@ impl<'p, 'tcx: 'p> RustcMatchCheckCtxt<'p, 'tcx> {
}
_ => bug!("bad slice pattern {:?} {:?}", ctor, ty),
},
Bool(..)
| IntRange(..)
| F32Range(..)
| F64Range(..)
| Str(..)
| Opaque(..)
| NonExhaustive
| Hidden
| Missing { .. }
| Wildcard => &[],
Bool(..) | IntRange(..) | F32Range(..) | F64Range(..) | Str(..) | Opaque(..)
| NonExhaustive | Hidden | Missing | Skip | Wildcard => &[],
Or => {
bug!("called `Fields::wildcards` on an `Or` ctor")
}
@ -288,16 +280,8 @@ impl<'p, 'tcx: 'p> RustcMatchCheckCtxt<'p, 'tcx> {
},
Ref => 1,
Slice(slice) => slice.arity(),
Bool(..)
| IntRange(..)
| F32Range(..)
| F64Range(..)
| Str(..)
| Opaque(..)
| NonExhaustive
| Hidden
| Missing { .. }
| Wildcard => 0,
Bool(..) | IntRange(..) | F32Range(..) | F64Range(..) | Str(..) | Opaque(..)
| NonExhaustive | Hidden | Missing | Skip | Wildcard => 0,
Or => bug!("The `Or` constructor doesn't have a fixed arity"),
}
}
@ -838,7 +822,7 @@ impl<'p, 'tcx: 'p> RustcMatchCheckCtxt<'p, 'tcx> {
}
}
&Str(value) => PatKind::Constant { value },
Wildcard | NonExhaustive | Hidden => PatKind::Wild,
Wildcard | NonExhaustive | Hidden | Skip => PatKind::Wild,
Missing { .. } => bug!(
"trying to convert a `Missing` constructor into a `Pat`; this is probably a bug,
`Missing` should have been processed in `apply_constructors`"