+/* Is VAR a path expression parent, i.e., can it be used to construct
+ a valid path expression? */
+
+static int
+c_is_path_expr_parent (const struct varobj *var)
+{
+ struct type *type;
+
+ /* "Fake" children are not path_expr parents. */
+ if (CPLUS_FAKE_CHILD (var))
+ return 0;
+
+ type = varobj_get_gdb_type (var);
+
+ /* Anonymous unions and structs are also not path_expr parents. */
+ if ((TYPE_CODE (type) == TYPE_CODE_STRUCT
+ || TYPE_CODE (type) == TYPE_CODE_UNION)
+ && TYPE_NAME (type) == NULL
+ && TYPE_TAG_NAME (type) == NULL)
+ {
+ const struct varobj *parent = var->parent;
+
+ while (parent != NULL && CPLUS_FAKE_CHILD (parent))
+ parent = parent->parent;
+
+ if (parent != NULL)
+ {
+ struct type *parent_type;
+ int was_ptr;
+
+ parent_type = varobj_get_value_type (parent);
+ adjust_value_for_child_access (NULL, &parent_type, &was_ptr, 0);
+
+ if (TYPE_CODE (parent_type) == TYPE_CODE_STRUCT
+ || TYPE_CODE (parent_type) == TYPE_CODE_UNION)
+ {
+ const char *field_name;
+
+ gdb_assert (var->index < TYPE_NFIELDS (parent_type));
+ field_name = TYPE_FIELD_NAME (parent_type, var->index);
+ return !(field_name == NULL || *field_name == '\0');
+ }
+ }
+
+ return 0;
+ }
+
+ return 1;
+}
+