From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6190CC4338F for ; Sat, 24 Jul 2021 08:59:37 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id CF056600EF for ; Sat, 24 Jul 2021 08:59:36 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org CF056600EF Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=nongnu.org Received: from localhost ([::1]:48916 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1m7DVQ-0003EM-0Y for qemu-devel@archiver.kernel.org; Sat, 24 Jul 2021 04:59:36 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:60004) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1m7DR5-00037X-9R for qemu-devel@nongnu.org; Sat, 24 Jul 2021 04:55:07 -0400 Received: from mail-ej1-x62c.google.com ([2a00:1450:4864:20::62c]:41828) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1m7DR2-0002xl-T5 for qemu-devel@nongnu.org; Sat, 24 Jul 2021 04:55:07 -0400 Received: by mail-ej1-x62c.google.com with SMTP id hb6so7194446ejc.8 for ; Sat, 24 Jul 2021 01:55:02 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=apsZV/jk63RRSa9CWgPizBreq7ffCH5V2eZW0Cf/xqk=; b=ePPy2lkvwsLrjODQQOWi1XsxqIhAqeFkqXRhvgSkk3gOroYGYUDcdYQdedBpWvS5U/ TnR/6wTZBRf3S/uK/H/wdmEa55dyM/IGw3hQMhezimcqQ4ERkzBj96x1NaTBTQKzHpKP 2UQEaVLVC/iX7u14c84z1jjz9ZmBQ9xUGkMaP7ENs8HTl8OUUHcKmDYoHdswU61akKuP muP/WGWsIizw9Fz/3PJywX04q5MaG/dBXYkFfXWuR97HpK9jXFq4UJrpLvibpzot4nY0 x6ymKraWCj7ON21QUe8SU0DA1LRdT+X1M585meSeK5np0LBTiSXjW2gZTjHeulc6hwNs rX4g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:from:to:cc:subject:date:message-id :in-reply-to:references:mime-version:content-transfer-encoding; bh=apsZV/jk63RRSa9CWgPizBreq7ffCH5V2eZW0Cf/xqk=; b=hXMQfQ3gTM8ef+FvhX312CtKecDD8iwYl8v4FJ1bZHVBzBogkTjk/YYPjFfpwFD8en /FXVjlEty/MqTlHxX1Q4ihlyw5beJep3yCKqT0ldmK0HjUVqvww1ikLIsoWOYB92vXR7 xqBUND82JaVOnUpDvFY4mWQRUf5hHF8tovajHGK7DQLwX02A6X5DnyZskchcJeGFed5h D3AQPTjqmZg9gj1JGl5kojlC+g9JRAPYWk4O+4Ygw7QnAvNQ5oic0SwlvAji8A+vt/tf f18A/7rIGs43zugI9JvlnZFuD+5apKMBgopHHt7d9iTNXuvwDazqtuY/4/qs97j7CTER rQGw== X-Gm-Message-State: AOAM531NUZ9r/kw+v1xWd7JuPFx3Kp0Ux9FELx4lg6KwUKeK5ohxtbwZ m0UrybM3ee7zVQmVHp7MM4k1uWTCRrvpVQ== X-Google-Smtp-Source: ABdhPJxIHAmCphPOkuK/iKS5jxdPeXClBgwow9KLWccb94ewGlX15QDoI95r2ByFNVUdwt7EUFi7xA== X-Received: by 2002:a17:907:7683:: with SMTP id jv3mr8450379ejc.272.1627116901449; Sat, 24 Jul 2021 01:55:01 -0700 (PDT) Received: from avogadro.lan ([2001:b07:6468:f312:63a7:c72e:ea0e:6045]) by smtp.gmail.com with ESMTPSA id j21sm15723881edq.76.2021.07.24.01.55.00 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 24 Jul 2021 01:55:01 -0700 (PDT) From: Paolo Bonzini To: qemu-devel@nongnu.org Subject: [PULL 8/9] qapi: introduce forwarding visitor Date: Sat, 24 Jul 2021 10:54:52 +0200 Message-Id: <20210724085453.16791-9-pbonzini@redhat.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210724085453.16791-1-pbonzini@redhat.com> References: <20210724085453.16791-1-pbonzini@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2a00:1450:4864:20::62c; envelope-from=paolo.bonzini@gmail.com; helo=mail-ej1-x62c.google.com X-Spam_score_int: 4 X-Spam_score: 0.4 X-Spam_bar: / X-Spam_report: (0.4 / 5.0 requ) DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FORGED_FROMDOMAIN=0.249, FREEMAIL_FROM=0.001, HEADER_FROM_DIFFERENT_DOMAINS=0.249, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Eric Blake Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" This new adaptor visitor takes a single field of the adaptee, and exposes it with a different name. This will be used for QOM alias properties. Alias targets can of course have a different name than the alias property itself (e.g. a machine's pflash0 might be an alias of a property named 'drive'). When the target's getter or setter invokes the visitor, it will use a different name than what the caller expects, and the visitor will not be able to find it (or will consume erroneously). The solution is for alias getters and setters to wrap the incoming visitor, and forward the sole field that the target is expecting while renaming it appropriately. Reviewed-by: Eric Blake Signed-off-by: Paolo Bonzini --- include/qapi/forward-visitor.h | 27 +++ qapi/meson.build | 1 + qapi/qapi-forward-visitor.c | 326 ++++++++++++++++++++++++++++++ tests/unit/meson.build | 1 + tests/unit/test-forward-visitor.c | 197 ++++++++++++++++++ 5 files changed, 552 insertions(+) create mode 100644 include/qapi/forward-visitor.h create mode 100644 qapi/qapi-forward-visitor.c create mode 100644 tests/unit/test-forward-visitor.c diff --git a/include/qapi/forward-visitor.h b/include/qapi/forward-visitor.h new file mode 100644 index 0000000000..50fb3e9d50 --- /dev/null +++ b/include/qapi/forward-visitor.h @@ -0,0 +1,27 @@ +/* + * Forwarding visitor + * + * Copyright Red Hat, Inc. 2021 + * + * Author: Paolo Bonzini + * + * This work is licensed under the terms of the GNU LGPL, version 2.1 or later. + * See the COPYING.LIB file in the top-level directory. + * + */ + +#ifndef FORWARD_VISITOR_H +#define FORWARD_VISITOR_H + +#include "qapi/visitor.h" + +typedef struct ForwardFieldVisitor ForwardFieldVisitor; + +/* + * The forwarding visitor only expects a single name, @from, to be passed for + * toplevel fields. It is converted to @to and forwarded to the @target visitor. + * Calls within a struct are forwarded without changing the name. + */ +Visitor *visitor_forward_field(Visitor *target, const char *from, const char *to); + +#endif diff --git a/qapi/meson.build b/qapi/meson.build index 376f4ceafe..c356a385e3 100644 --- a/qapi/meson.build +++ b/qapi/meson.build @@ -2,6 +2,7 @@ util_ss.add(files( 'opts-visitor.c', 'qapi-clone-visitor.c', 'qapi-dealloc-visitor.c', + 'qapi-forward-visitor.c', 'qapi-util.c', 'qapi-visit-core.c', 'qobject-input-visitor.c', diff --git a/qapi/qapi-forward-visitor.c b/qapi/qapi-forward-visitor.c new file mode 100644 index 0000000000..a4b111e22a --- /dev/null +++ b/qapi/qapi-forward-visitor.c @@ -0,0 +1,326 @@ +/* + * Forward Visitor + * + * Copyright (C) 2021 Red Hat, Inc. + * + * This work is licensed under the terms of the GNU LGPL, version 2.1 or later. + * See the COPYING.LIB file in the top-level directory. + * + */ + +#include "qemu/osdep.h" +#include "qapi/compat-policy.h" +#include "qapi/error.h" +#include "qapi/forward-visitor.h" +#include "qapi/visitor-impl.h" +#include "qemu/queue.h" +#include "qapi/qmp/qjson.h" +#include "qapi/qmp/qbool.h" +#include "qapi/qmp/qdict.h" +#include "qapi/qmp/qerror.h" +#include "qapi/qmp/qlist.h" +#include "qapi/qmp/qnull.h" +#include "qapi/qmp/qnum.h" +#include "qapi/qmp/qstring.h" +#include "qemu/cutils.h" +#include "qemu/option.h" + +struct ForwardFieldVisitor { + Visitor visitor; + + Visitor *target; + char *from; + char *to; + + int depth; +}; + +static ForwardFieldVisitor *to_ffv(Visitor *v) +{ + return container_of(v, ForwardFieldVisitor, visitor); +} + +static bool forward_field_translate_name(ForwardFieldVisitor *v, const char **name, + Error **errp) +{ + if (v->depth) { + return true; + } + if (g_str_equal(*name, v->from)) { + *name = v->to; + return true; + } + error_setg(errp, QERR_MISSING_PARAMETER, *name); + return false; +} + +static bool forward_field_check_struct(Visitor *v, Error **errp) +{ + ForwardFieldVisitor *ffv = to_ffv(v); + + return visit_check_struct(ffv->target, errp); +} + +static bool forward_field_start_struct(Visitor *v, const char *name, void **obj, + size_t size, Error **errp) +{ + ForwardFieldVisitor *ffv = to_ffv(v); + + if (!forward_field_translate_name(ffv, &name, errp)) { + return false; + } + if (!visit_start_struct(ffv->target, name, obj, size, errp)) { + return false; + } + ffv->depth++; + return true; +} + +static void forward_field_end_struct(Visitor *v, void **obj) +{ + ForwardFieldVisitor *ffv = to_ffv(v); + + assert(ffv->depth); + ffv->depth--; + visit_end_struct(ffv->target, obj); +} + +static bool forward_field_start_list(Visitor *v, const char *name, + GenericList **list, size_t size, + Error **errp) +{ + ForwardFieldVisitor *ffv = to_ffv(v); + + if (!forward_field_translate_name(ffv, &name, errp)) { + return false; + } + ffv->depth++; + return visit_start_list(ffv->target, name, list, size, errp); +} + +static GenericList *forward_field_next_list(Visitor *v, GenericList *tail, + size_t size) +{ + ForwardFieldVisitor *ffv = to_ffv(v); + + assert(ffv->depth); + return visit_next_list(ffv->target, tail, size); +} + +static bool forward_field_check_list(Visitor *v, Error **errp) +{ + ForwardFieldVisitor *ffv = to_ffv(v); + + assert(ffv->depth); + return visit_check_list(ffv->target, errp); +} + +static void forward_field_end_list(Visitor *v, void **obj) +{ + ForwardFieldVisitor *ffv = to_ffv(v); + + assert(ffv->depth); + ffv->depth--; + visit_end_list(ffv->target, obj); +} + +static bool forward_field_start_alternate(Visitor *v, const char *name, + GenericAlternate **obj, size_t size, + Error **errp) +{ + ForwardFieldVisitor *ffv = to_ffv(v); + + if (!forward_field_translate_name(ffv, &name, errp)) { + return false; + } + /* + * The name passed to start_alternate is used also in the visit_type_* calls + * that retrieve the alternate's content; so, do not increase depth here. + */ + return visit_start_alternate(ffv->target, name, obj, size, errp); +} + +static void forward_field_end_alternate(Visitor *v, void **obj) +{ + ForwardFieldVisitor *ffv = to_ffv(v); + + visit_end_alternate(ffv->target, obj); +} + +static bool forward_field_type_int64(Visitor *v, const char *name, int64_t *obj, + Error **errp) +{ + ForwardFieldVisitor *ffv = to_ffv(v); + + if (!forward_field_translate_name(ffv, &name, errp)) { + return false; + } + return visit_type_int64(ffv->target, name, obj, errp); +} + +static bool forward_field_type_uint64(Visitor *v, const char *name, + uint64_t *obj, Error **errp) +{ + ForwardFieldVisitor *ffv = to_ffv(v); + + if (!forward_field_translate_name(ffv, &name, errp)) { + return false; + } + return visit_type_uint64(ffv->target, name, obj, errp); +} + +static bool forward_field_type_bool(Visitor *v, const char *name, bool *obj, + Error **errp) +{ + ForwardFieldVisitor *ffv = to_ffv(v); + + if (!forward_field_translate_name(ffv, &name, errp)) { + return false; + } + return visit_type_bool(ffv->target, name, obj, errp); +} + +static bool forward_field_type_str(Visitor *v, const char *name, char **obj, + Error **errp) +{ + ForwardFieldVisitor *ffv = to_ffv(v); + + if (!forward_field_translate_name(ffv, &name, errp)) { + return false; + } + return visit_type_str(ffv->target, name, obj, errp); +} + +static bool forward_field_type_size(Visitor *v, const char *name, uint64_t *obj, + Error **errp) +{ + ForwardFieldVisitor *ffv = to_ffv(v); + + if (!forward_field_translate_name(ffv, &name, errp)) { + return false; + } + return visit_type_size(ffv->target, name, obj, errp); +} + +static bool forward_field_type_number(Visitor *v, const char *name, double *obj, + Error **errp) +{ + ForwardFieldVisitor *ffv = to_ffv(v); + + if (!forward_field_translate_name(ffv, &name, errp)) { + return false; + } + return visit_type_number(ffv->target, name, obj, errp); +} + +static bool forward_field_type_any(Visitor *v, const char *name, QObject **obj, + Error **errp) +{ + ForwardFieldVisitor *ffv = to_ffv(v); + + if (!forward_field_translate_name(ffv, &name, errp)) { + return false; + } + return visit_type_any(ffv->target, name, obj, errp); +} + +static bool forward_field_type_null(Visitor *v, const char *name, + QNull **obj, Error **errp) +{ + ForwardFieldVisitor *ffv = to_ffv(v); + + if (!forward_field_translate_name(ffv, &name, errp)) { + return false; + } + return visit_type_null(ffv->target, name, obj, errp); +} + +static void forward_field_optional(Visitor *v, const char *name, bool *present) +{ + ForwardFieldVisitor *ffv = to_ffv(v); + + if (!forward_field_translate_name(ffv, &name, NULL)) { + *present = false; + return; + } + visit_optional(ffv->target, name, present); +} + +static bool forward_field_deprecated_accept(Visitor *v, const char *name, + Error **errp) +{ + ForwardFieldVisitor *ffv = to_ffv(v); + + if (!forward_field_translate_name(ffv, &name, errp)) { + return false; + } + return visit_deprecated_accept(ffv->target, name, errp); +} + +static bool forward_field_deprecated(Visitor *v, const char *name) +{ + ForwardFieldVisitor *ffv = to_ffv(v); + + if (!forward_field_translate_name(ffv, &name, NULL)) { + return false; + } + return visit_deprecated(ffv->target, name); +} + +static void forward_field_complete(Visitor *v, void *opaque) +{ + /* + * Do nothing, the complete method will be called in due time + * on the target visitor. + */ +} + +static void forward_field_free(Visitor *v) +{ + ForwardFieldVisitor *ffv = to_ffv(v); + + g_free(ffv->from); + g_free(ffv->to); + g_free(ffv); +} + +Visitor *visitor_forward_field(Visitor *target, const char *from, const char *to) +{ + ForwardFieldVisitor *v = g_new0(ForwardFieldVisitor, 1); + + /* + * Clone and dealloc visitors don't use a name for the toplevel + * visit, so they make no sense here. + */ + assert(target->type == VISITOR_OUTPUT || target->type == VISITOR_INPUT); + + v->visitor.type = target->type; + v->visitor.start_struct = forward_field_start_struct; + v->visitor.check_struct = forward_field_check_struct; + v->visitor.end_struct = forward_field_end_struct; + v->visitor.start_list = forward_field_start_list; + v->visitor.next_list = forward_field_next_list; + v->visitor.check_list = forward_field_check_list; + v->visitor.end_list = forward_field_end_list; + v->visitor.start_alternate = forward_field_start_alternate; + v->visitor.end_alternate = forward_field_end_alternate; + v->visitor.type_int64 = forward_field_type_int64; + v->visitor.type_uint64 = forward_field_type_uint64; + v->visitor.type_size = forward_field_type_size; + v->visitor.type_bool = forward_field_type_bool; + v->visitor.type_str = forward_field_type_str; + v->visitor.type_number = forward_field_type_number; + v->visitor.type_any = forward_field_type_any; + v->visitor.type_null = forward_field_type_null; + v->visitor.optional = forward_field_optional; + v->visitor.deprecated_accept = forward_field_deprecated_accept; + v->visitor.deprecated = forward_field_deprecated; + v->visitor.complete = forward_field_complete; + v->visitor.free = forward_field_free; + + v->target = target; + v->from = g_strdup(from); + v->to = g_strdup(to); + + return &v->visitor; +} diff --git a/tests/unit/meson.build b/tests/unit/meson.build index 3e0504dd21..5736d285b2 100644 --- a/tests/unit/meson.build +++ b/tests/unit/meson.build @@ -14,6 +14,7 @@ tests = { 'test-qobject-output-visitor': [testqapi], 'test-clone-visitor': [testqapi], 'test-qobject-input-visitor': [testqapi], + 'test-forward-visitor': [testqapi], 'test-string-input-visitor': [testqapi], 'test-string-output-visitor': [testqapi], 'test-opts-visitor': [testqapi], diff --git a/tests/unit/test-forward-visitor.c b/tests/unit/test-forward-visitor.c new file mode 100644 index 0000000000..348f7e4e81 --- /dev/null +++ b/tests/unit/test-forward-visitor.c @@ -0,0 +1,197 @@ +/* + * QAPI Forwarding Visitor unit-tests. + * + * Copyright (C) 2021 Red Hat Inc. + * + * This work is licensed under the terms of the GNU GPL, version 2 or later. + * See the COPYING file in the top-level directory. + */ + +#include "qemu/osdep.h" + +#include "qemu-common.h" +#include "qapi/forward-visitor.h" +#include "qapi/qobject-input-visitor.h" +#include "qapi/error.h" +#include "qapi/qmp/qobject.h" +#include "qapi/qmp/qdict.h" +#include "test-qapi-visit.h" +#include "qemu/option.h" + +typedef bool GenericVisitor (Visitor *, const char *, void **, Error **); +#define CAST_VISIT_TYPE(fn) ((GenericVisitor *)(fn)) + +/* + * Parse @srcstr and wrap it with a ForwardFieldVisitor converting "src" to + * "dst". Check that visiting the result with "src" name fails, and return + * the result of visiting "dst". + */ +static void *visit_with_forward(const char *srcstr, GenericVisitor *fn) +{ + bool help = false; + QDict *src = keyval_parse(srcstr, NULL, &help, &error_abort); + Visitor *v, *alias_v; + Error *err = NULL; + void *result = NULL; + + v = qobject_input_visitor_new_keyval(QOBJECT(src)); + visit_start_struct(v, NULL, NULL, 0, &error_abort); + + alias_v = visitor_forward_field(v, "dst", "src"); + fn(alias_v, "src", &result, &err); + error_free_or_abort(&err); + assert(!result); + fn(alias_v, "dst", &result, &err); + assert(err == NULL); + visit_free(alias_v); + + visit_end_struct(v, NULL); + visit_free(v); + qobject_unref(QOBJECT(src)); + return result; +} + +static void test_forward_any(void) +{ + QObject *src = visit_with_forward("src.integer=42,src.string=Hello,src.enum1=value2", + CAST_VISIT_TYPE(visit_type_any)); + Visitor *v = qobject_input_visitor_new_keyval(src); + Error *err = NULL; + UserDefOne *dst; + + visit_type_UserDefOne(v, NULL, &dst, &err); + assert(err == NULL); + visit_free(v); + + g_assert_cmpint(dst->integer, ==, 42); + g_assert_cmpstr(dst->string, ==, "Hello"); + g_assert_cmpint(dst->has_enum1, ==, true); + g_assert_cmpint(dst->enum1, ==, ENUM_ONE_VALUE2); + qapi_free_UserDefOne(dst); + qobject_unref(QOBJECT(src)); +} + +static void test_forward_size(void) +{ + /* + * visit_type_size does not return a pointer, so visit_with_forward + * cannot be used. + */ + bool help = false; + QDict *src = keyval_parse("src=1.5M", NULL, &help, &error_abort); + Visitor *v, *alias_v; + Error *err = NULL; + uint64_t result = 0; + + v = qobject_input_visitor_new_keyval(QOBJECT(src)); + visit_start_struct(v, NULL, NULL, 0, &error_abort); + + alias_v = visitor_forward_field(v, "dst", "src"); + visit_type_size(alias_v, "src", &result, &err); + error_free_or_abort(&err); + visit_type_size(alias_v, "dst", &result, &err); + assert(result == 3 << 19); + assert(err == NULL); + visit_free(alias_v); + + visit_end_struct(v, NULL); + visit_free(v); + qobject_unref(QOBJECT(src)); +} + +static void test_forward_number(void) +{ + /* + * visit_type_number does not return a pointer, so visit_with_forward + * cannot be used. + */ + bool help = false; + QDict *src = keyval_parse("src=1.5", NULL, &help, &error_abort); + Visitor *v, *alias_v; + Error *err = NULL; + double result = 0.0; + + v = qobject_input_visitor_new_keyval(QOBJECT(src)); + visit_start_struct(v, NULL, NULL, 0, &error_abort); + + alias_v = visitor_forward_field(v, "dst", "src"); + visit_type_number(alias_v, "src", &result, &err); + error_free_or_abort(&err); + visit_type_number(alias_v, "dst", &result, &err); + assert(result == 1.5); + assert(err == NULL); + visit_free(alias_v); + + visit_end_struct(v, NULL); + visit_free(v); + qobject_unref(QOBJECT(src)); +} + +static void test_forward_string(void) +{ + char *dst = visit_with_forward("src=Hello", + CAST_VISIT_TYPE(visit_type_str)); + + g_assert_cmpstr(dst, ==, "Hello"); + g_free(dst); +} + +static void test_forward_struct(void) +{ + UserDefOne *dst = visit_with_forward("src.integer=42,src.string=Hello", + CAST_VISIT_TYPE(visit_type_UserDefOne)); + + g_assert_cmpint(dst->integer, ==, 42); + g_assert_cmpstr(dst->string, ==, "Hello"); + g_assert_cmpint(dst->has_enum1, ==, false); + qapi_free_UserDefOne(dst); +} + +static void test_forward_alternate(void) +{ + AltStrObj *s_dst = visit_with_forward("src=hello", + CAST_VISIT_TYPE(visit_type_AltStrObj)); + AltStrObj *o_dst = visit_with_forward("src.integer=42,src.boolean=true,src.string=world", + CAST_VISIT_TYPE(visit_type_AltStrObj)); + + g_assert_cmpint(s_dst->type, ==, QTYPE_QSTRING); + g_assert_cmpstr(s_dst->u.s, ==, "hello"); + g_assert_cmpint(o_dst->type, ==, QTYPE_QDICT); + g_assert_cmpint(o_dst->u.o.integer, ==, 42); + g_assert_cmpint(o_dst->u.o.boolean, ==, true); + g_assert_cmpstr(o_dst->u.o.string, ==, "world"); + + qapi_free_AltStrObj(s_dst); + qapi_free_AltStrObj(o_dst); +} + +static void test_forward_list(void) +{ + uint8List *dst = visit_with_forward("src.0=1,src.1=2,src.2=3,src.3=4", + CAST_VISIT_TYPE(visit_type_uint8List)); + uint8List *tmp; + int i; + + for (tmp = dst, i = 1; i <= 4; i++) { + g_assert(tmp); + g_assert_cmpint(tmp->value, ==, i); + tmp = tmp->next; + } + g_assert(!tmp); + qapi_free_uint8List(dst); +} + +int main(int argc, char **argv) +{ + g_test_init(&argc, &argv, NULL); + + g_test_add_func("/visitor/forward/struct", test_forward_struct); + g_test_add_func("/visitor/forward/alternate", test_forward_alternate); + g_test_add_func("/visitor/forward/string", test_forward_string); + g_test_add_func("/visitor/forward/size", test_forward_size); + g_test_add_func("/visitor/forward/number", test_forward_number); + g_test_add_func("/visitor/forward/any", test_forward_any); + g_test_add_func("/visitor/forward/list", test_forward_list); + + return g_test_run(); +} -- 2.31.1