1 /*
2  * Copyright (C) 2016 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 "Annotation.h"
20 #include "Coordinator.h"
21 #include "Interface.h"
22 #include "Method.h"
23 #include "Scope.h"
24 
25 #include <hidl-util/Formatter.h>
26 #include <android-base/logging.h>
27 #include <string>
28 #include <vector>
29 
30 namespace android {
31 
emitVtsTypeDeclarations(Formatter & out) const32 void AST::emitVtsTypeDeclarations(Formatter& out) const {
33     if (AST::isInterface()) {
34         const Interface* iface = mRootScope.getInterface();
35         return iface->emitVtsAttributeDeclaration(out);
36     }
37 
38     for (const auto& type : mRootScope.getSubTypes()) {
39         // Skip for TypeDef as it is just an alias of a defined type.
40         if (type->isTypeDef()) {
41             continue;
42         }
43         out << "attribute: {\n";
44         out.indent();
45         type->emitVtsTypeDeclarations(out);
46         out.unindent();
47         out << "}\n\n";
48     }
49 }
50 
generateVts(Formatter & out) const51 void AST::generateVts(Formatter& out) const {
52     std::string baseName = AST::getBaseName();
53     const Interface *iface = AST::getInterface();
54 
55     out << "component_class: HAL_HIDL\n";
56     out << "component_name: \"" << (iface ? iface->definedName() : "types") << "\"\n\n";
57 
58     out << "component_type_version_major: " << mPackage.getPackageMajorVersion() << "\n";
59     out << "component_type_version_minor: " << mPackage.getPackageMinorVersion() << "\n";
60     out << "package: \"" << mPackage.package() << "\"\n\n";
61 
62     // Generate import statement for all imported interface/types.
63     std::set<FQName> allImportedNames;
64     getAllImportedNames(&allImportedNames);
65     for (const auto &name : allImportedNames) {
66         // ignore IBase.
67         if (name != gIBaseFqName) {
68             out << "import: \"" << name.string() << "\"\n";
69         }
70     }
71 
72     out << "\n";
73 
74     if (isInterface()) {
75         const Interface* iface = mRootScope.getInterface();
76         out << "interface: {\n";
77         out.indent();
78 
79         // Generate all the attribute declarations first.
80         emitVtsTypeDeclarations(out);
81 
82         // Generate all the method declarations.
83         for (const Interface* superInterface : iface->superTypeChain()) {
84             superInterface->emitVtsMethodDeclaration(out, true /*isInhereted*/);
85         }
86 
87         iface->emitVtsMethodDeclaration(out, false /*isInhereted*/);
88         out.unindent();
89         out << "}\n";
90     } else {
91         emitVtsTypeDeclarations(out);
92     }
93 }
94 
95 }  // namespace android
96