class Rubydex::MethodReference

static VALUE rdxr_method_reference_document(VALUE self) {
    HandleData *data;
    void *graph = rdxi_graph_from_handle(self, &data);

    const uint64_t *uri_id = rdx_method_reference_document(graph, data->id);
    if (uri_id == NULL) {
        rb_raise(rb_eRuntimeError, "Method reference not found");
    }

    VALUE argv[] = {data->graph_obj, ULL2NUM(*uri_id)};
    free_u64(uri_id);

    return rb_class_new_instance(2, argv, cDocument);
}

static VALUE rdxr_method_reference_location(VALUE self) {
    HandleData *data;
    void *graph = rdxi_graph_from_handle(self, &data);

    Location *loc = rdx_method_reference_location(graph, data->id);
    if (loc == NULL) {
        rb_raise(rb_eRuntimeError, "Method reference must exist for a valid id");
    }
    VALUE location = rdxi_build_location_value(loc);
    rdx_location_free(loc);
    return location;
}

static VALUE rdxr_method_reference_name(VALUE self) {
    HandleData *data;
    void *graph = rdxi_graph_from_handle(self, &data);

    const char *name = rdx_method_reference_name(graph, data->id);
    if (name == NULL) {
        rb_raise(rb_eRuntimeError, "Method reference must exist for a valid id");
    }
    return rdxi_owned_c_string_to_ruby(name);
}

static VALUE rdxr_method_reference_receiver(VALUE self) {
    HandleData *data;
    void *graph = rdxi_graph_from_handle(self, &data);

    const struct CDeclaration *decl = rdx_method_reference_receiver_declaration(graph, data->id);
    if (decl == NULL) {
        return Qnil;
    }

    VALUE decl_class = rdxi_declaration_class_for_kind(decl->kind);
    VALUE argv[] = {data->graph_obj, ULL2NUM(decl->id)};
    free_c_declaration(decl);

    return rb_class_new_instance(2, argv, decl_class);
}