gccrs: scan-deadcode: Do not warn unused fields if they start with '_'

gcc/rust/ChangeLog:

	* checks/lints/rust-lint-scan-deadcode.h: Check if the field name starts with an
	underscore before warning.

diff --git a/gcc/rust/checks/lints/rust-lint-scan-deadcode.h b/gcc/rust/checks/lints/rust-lint-scan-deadcode.h
index e6ef1392c89ecfa7a5fc9e38582a8f36443ef927..0fc203b03189355f6295b345cc87a62bdc92ccd7 100644 (file)
--- a/gcc/rust/checks/lints/rust-lint-scan-deadcode.h
+++ b/gcc/rust/checks/lints/rust-lint-scan-deadcode.h
@@ -93,7 +93,8 @@ public:
          {
            HirId field_hir_id = field.get_mappings ().get_hirid ();
            if (should_warn (field_hir_id)
-               && !field.get_visibility ().is_public ())
+               && !field.get_visibility ().is_public ()
+               && field.get_field_name ().as_string ().at (0) != '_')
              {
                rust_warning_at (field.get_locus (), 0,
                                 "field is never read: %qs",