整理代码

util/xpack/example/inherit.cpp

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+/*
+* Copyright (C) 2021 Duowan Inc. All rights reserved.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing,
+* software distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+#include <iostream>
+#include "xpack/json.h"
+
+using namespace std;
+
+struct P1 {
+    string mail;
+    XPACK(O(mail));
+};
+
+struct P2 {
+    long version;
+    XPACK(O(version));
+};
+
+struct Test:public P1, public P2 {
+    long uid;
+    string  name;
+    XPACK(I(P1, P2), A(uid, "id"), O(name));
+};
+
+struct Pa {
+    string mail;
+    XPACK(O(mail));
+};
+
+struct Pb: public Pa {
+    long version;
+    XPACK(I(Pa), O(version));
+};
+
+struct Pc:public Pb {
+    long uid;
+    string  name;
+    XPACK(I(Pb), A(uid, "id"), O(name));
+};
+
+int main(int argc, char *argv[]) {
+    (void)argc;
+    (void)argv;
+
+    Test t;
+    string json="{\"mail\":\"pony@xpack.com\", \"version\":2019, \"id\":123, \"name\":\"Pony\"}";
+
+    xpack::json::decode(json, t);
+    cout<<xpack::json::encode(t)<<endl;
+
+    Pc p;
+    xpack::json::decode(json, p);
+    cout<<xpack::json::encode(p)<<endl;
+
+    return 0;
+}