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Diffstat (limited to 'crates/hir-def/src/expr_store/lower.rs')
| -rw-r--r-- | crates/hir-def/src/expr_store/lower.rs | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/crates/hir-def/src/expr_store/lower.rs b/crates/hir-def/src/expr_store/lower.rs index 48ccc1c0aa..205c5e6dc9 100644 --- a/crates/hir-def/src/expr_store/lower.rs +++ b/crates/hir-def/src/expr_store/lower.rs @@ -2570,9 +2570,9 @@ impl<'db> ExprCollector<'db> { } fn collect_extern_fn_param(&mut self, pat: Option<ast::Pat>) -> PatId { - // `extern` functions cannot have pattern-matched parameters, and furthermore, the identifiers - // in their parameters are always interpreted as bindings, even if in a normal function they - // won't be, because they would refer to a path pattern. + // parameters of functions in `extern` blocks can only be simple identifiers and wildcards. + // Furthermore, the identifiers in their parameters are always interpreted as bindings, even + // if in a normal function they won't be, because they would refer to a path pattern. let Some(pat) = pat else { return self.missing_pat() }; match &pat { @@ -2588,6 +2588,7 @@ impl<'db> ExprCollector<'db> { self.add_definition_to_binding(binding, pat); pat } + ast::Pat::WildcardPat(_) => self.collect_pat_top(Some(pat)), _ => { self.store.diagnostics.push(ExpressionStoreDiagnostics::PatternArgInExternFn { node: self.expander.in_file(AstPtr::new(&pat)), |