nordic-dev.net/rust
nordic-dev.net/rust
2
0
Fork 0
mirror of https://github.com/rust-lang/rust.git synced 2024-11-23 07:14:28 +00:00
Code Issues Packages Projects Releases Wiki Activity

panic when trying to destructure union as enum

Browse Source
This commit is contained in:
Smitty 2021-07-09 15:22:12 -04:00
parent df3e003378
commit b86ed4a425
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
compiler/rustc_mir_build/src/check_unsafety.rs
View File

@ -201,14 +201,14 @@ impl<'a, 'tcx> Visitor<'a, 'tcx> for UnsafetyVisitor<'a, 'tcx> {
AscribeUserType { .. } |
// creating a union literal
Constant { .. } => {},
Variant { .. } | Leaf { .. } | Or { .. } => {
Leaf { .. } | Or { .. } => {
// pattern matching with a union and not doing something like v = Union { bar: 5 }
self.in_union_destructure = true;
visit::walk_pat(self, pat);
self.in_union_destructure = false;
return; // don't walk pattern
}
Deref { .. } | Range { .. } | Slice { .. } | Array { .. } =>
Variant { .. } | Deref { .. } | Range { .. } | Slice { .. } | Array { .. } =>
unreachable!("impossible union destructuring type"),
}
}