Eric Holk | c4239ac | 2018-09-05 10:43:31 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2018 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 | #ifndef JAVA_LANG_BUILDER_H_ |
| 17 | #define JAVA_LANG_BUILDER_H_ |
| 18 | |
| 19 | #include <iostream> |
| 20 | #include <sstream> |
| 21 | #include <vector> |
| 22 | |
| 23 | // Build Java language code to instantiate views. |
| 24 | // |
| 25 | // This has a very small interface to make it easier to generate additional |
| 26 | // backends, such as a direct-to-DEX version. |
| 27 | class JavaLangViewBuilder { |
| 28 | public: |
| 29 | JavaLangViewBuilder(std::string package, std::string layout_name, std::ostream& out = std::cout) |
| 30 | : package_(package), layout_name_(layout_name), out_(out) {} |
| 31 | |
| 32 | // Begin generating a class. Adds the package boilerplate, etc. |
| 33 | void Start() const; |
| 34 | // Finish generating a class, closing off any open curly braces, etc. |
| 35 | void Finish() const; |
| 36 | |
| 37 | // Begin creating a view (i.e. process the opening tag) |
Eric Holk | 4273457 | 2018-12-17 15:46:18 -0800 | [diff] [blame] | 38 | void StartView(const std::string& class_name, bool is_viewgroup); |
Eric Holk | c4239ac | 2018-09-05 10:43:31 -0700 | [diff] [blame] | 39 | // Finish a view, after all of its child nodes have been processed. |
| 40 | void FinishView(); |
| 41 | |
| 42 | private: |
| 43 | const std::string MakeVar(std::string prefix); |
| 44 | |
| 45 | std::string const package_; |
| 46 | std::string const layout_name_; |
| 47 | |
| 48 | std::ostream& out_; |
| 49 | |
| 50 | size_t view_id_ = 0; |
| 51 | |
| 52 | struct StackEntry { |
| 53 | // The class name for this view object |
| 54 | const std::string class_name; |
| 55 | |
| 56 | // The variable name that is holding the view object |
| 57 | const std::string view_var; |
| 58 | |
| 59 | // The variable name that holds the object's layout parameters |
| 60 | const std::string layout_params_var; |
| 61 | }; |
| 62 | std::vector<StackEntry> view_stack_; |
| 63 | }; |
| 64 | |
| 65 | #endif // JAVA_LANG_BUILDER_H_ |