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-rw-r--r--gcc/rust/parse/rust-parse-impl.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/gcc/rust/parse/rust-parse-impl.h b/gcc/rust/parse/rust-parse-impl.h
index 7e4e794..f60d34f 100644
--- a/gcc/rust/parse/rust-parse-impl.h
+++ b/gcc/rust/parse/rust-parse-impl.h
@@ -13015,6 +13015,12 @@ Parser<ManagedTokenSource>::null_denotation (const_TokenPtr tok,
case UNSAFE:
return parse_unsafe_block_expr (std::move (outer_attrs),
tok->get_locus ());
+ case UNDERSCORE:
+ add_error (
+ Error (tok->get_locus (),
+ "use of %qs is not allowed on the right-side of an assignment",
+ tok->get_token_description ()));
+ return nullptr;
default:
if (!restrictions.expr_can_be_null)
add_error (Error (tok->get_locus (),