1 /*
2  * Copyright (C) 2015 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 #ifndef AAPT_BINDING_XML_PULL_PARSER_H
18 #define AAPT_BINDING_XML_PULL_PARSER_H
19 
20 #include "XmlPullParser.h"
21 
22 #include <iostream>
23 #include <memory>
24 #include <string>
25 
26 namespace aapt {
27 
28 class BindingXmlPullParser : public XmlPullParser {
29 public:
30     BindingXmlPullParser(const std::shared_ptr<XmlPullParser>& parser);
31     BindingXmlPullParser(const BindingXmlPullParser& rhs) = delete;
32 
33     Event getEvent() const override;
34     const std::string& getLastError() const override;
35     Event next() override;
36 
37     const std::u16string& getComment() const override;
38     size_t getLineNumber() const override;
39     size_t getDepth() const override;
40 
41     const std::u16string& getText() const override;
42 
43     const std::u16string& getNamespacePrefix() const override;
44     const std::u16string& getNamespaceUri() const override;
45     bool applyPackageAlias(std::u16string* package, const std::u16string& defaultPackage)
46             const override;
47 
48     const std::u16string& getElementNamespace() const override;
49     const std::u16string& getElementName() const override;
50 
51     const_iterator beginAttributes() const override;
52     const_iterator endAttributes() const override;
53     size_t getAttributeCount() const override;
54 
55     bool writeToFile(std::ostream& out) const;
56 
57 private:
58     struct VarDecl {
59         std::string name;
60         std::string type;
61     };
62 
63     struct Import {
64         std::string name;
65         std::string type;
66     };
67 
68     struct Target {
69         std::string className;
70         std::string id;
71         int32_t tagId;
72 
73         std::vector<XmlPullParser::Attribute> expressions;
74     };
75 
76     bool readVariableDeclaration();
77     bool readExpressions();
78 
79     std::shared_ptr<XmlPullParser> mParser;
80     std::string mLastError;
81     bool mOverride;
82     std::vector<XmlPullParser::Attribute> mAttributes;
83     std::vector<VarDecl> mVarDecls;
84     std::vector<Target> mTargets;
85     int32_t mNextTagId;
86 };
87 
88 } // namespace aapt
89 
90 #endif // AAPT_BINDING_XML_PULL_PARSER_H
91