1 /*
2  * Copyright (C) 2019 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 #include "AST.h"
18 
19 #include <android-base/logging.h>
20 #include <hidl-util/Formatter.h>
21 #include <json/json.h>
22 #include <sstream>
23 #include <string>
24 #include <vector>
25 
26 #include "Interface.h"
27 
28 namespace android {
29 
generateInheritanceHierarchy(Formatter & out) const30 void AST::generateInheritanceHierarchy(Formatter& out) const {
31     const Interface* callingIface = mRootScope.getInterface();
32     CHECK(callingIface != nullptr);
33 
34     Json::Value root;
35     root["interface"] = callingIface->fqName().string();
36     if (callingIface->superType()) {
37         Json::Value inheritedInterfaces(Json::arrayValue);
38         for (const Interface* iface : mRootScope.getInterface()->superTypeChain()) {
39             if (iface->isIBase()) break;
40             inheritedInterfaces.append(iface->fqName().string());
41         }
42         root["inheritedInterfaces"] = inheritedInterfaces;
43     }
44     Json::StreamWriterBuilder factory;
45     std::unique_ptr<Json::StreamWriter> const writer(factory.newStreamWriter());
46     std::ostringstream ss;
47     writer->write(root, &ss);
48     ss << std::endl;
49     out << ss.str();
50 }
51 
52 }  // namespace android
53