diff options
author | Scott Lobdell <slobdell@google.com> | 2019-01-31 11:53:41 -0800 |
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committer | Scott Lobdell <slobdell@google.com> | 2019-02-01 14:08:42 -0800 |
commit | 88b45c586d461df38b866d529bc98d1dfa3e8838 (patch) | |
tree | ae57a86275dac94c0899015923778f3016c865b2 /startop/view_compiler/dex_layout_compiler.h | |
parent | 067596650927fa91a97355e84b152b21826f7ae2 (diff) | |
parent | 9b9ca46fc2d3da231bf9ef6ff630105720f94cf2 (diff) |
Merge QP1A.190122.001
Conflicts:
api/system-current.txt
core/java/android/bluetooth/BluetoothAdapter.java
core/jni/android_util_Process.cpp
core/jni/com_android_internal_os_Zygote.cpp
core/res/res/values/config.xml
core/res/res/values/symbols.xml
media/java/android/media/MediaCodecInfo.java
packages/SystemUI/src/com/android/systemui/statusbar/SignalClusterView.java
services/core/java/com/android/server/ConnectivityService.java
services/core/java/com/android/server/LocationManagerService.java
services/core/java/com/android/server/am/ActivityManagerService.java
services/core/java/com/android/server/connectivity/NetworkAgentInfo.java
services/core/java/com/android/server/location/GnssLocationProvider.java
services/core/java/com/android/server/wm/ActivityStack.java
services/net/java/android/net/ip/IpClient.java
telecomm/java/android/telecom/Connection.java
telephony/java/android/telephony/ims/ImsCallSession.java
telephony/java/android/telephony/ims/ImsCallSessionListener.java
telephony/java/android/telephony/ims/aidl/IImsCallSessionListener.aidl
telephony/java/android/telephony/ims/compat/stub/ImsCallSessionImplBase.java
telephony/java/com/android/ims/internal/IImsCallSessionListener.aidl
wifi/java/android/net/wifi/WifiConfiguration.java
Change-Id: I367301986f2ae80a528050c3d78776b5a4c6b5ee
Diffstat (limited to 'startop/view_compiler/dex_layout_compiler.h')
-rw-r--r-- | startop/view_compiler/dex_layout_compiler.h | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/startop/view_compiler/dex_layout_compiler.h b/startop/view_compiler/dex_layout_compiler.h new file mode 100644 index 000000000000..170a1a610297 --- /dev/null +++ b/startop/view_compiler/dex_layout_compiler.h @@ -0,0 +1,118 @@ +/* + * Copyright (C) 2018 The Android Open Source Project + * + * 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. + */ + +#ifndef DEX_LAYOUT_COMPILER_H_ +#define DEX_LAYOUT_COMPILER_H_ + +#include "dex_builder.h" + +#include <codecvt> +#include <locale> +#include <string> +#include <vector> + +namespace startop { + +// This visitor does the actual view compilation, using a supplied builder. +template <typename Builder> +class LayoutCompilerVisitor { + public: + explicit LayoutCompilerVisitor(Builder* builder) : builder_{builder} {} + + void VisitStartDocument() { builder_->Start(); } + void VisitEndDocument() { builder_->Finish(); } + void VisitStartTag(const std::u16string& name) { + parent_stack_.push_back(ViewEntry{ + std::wstring_convert<std::codecvt_utf8_utf16<char16_t>, char16_t>{}.to_bytes(name), {}}); + } + void VisitEndTag() { + auto entry = parent_stack_.back(); + parent_stack_.pop_back(); + + if (parent_stack_.empty()) { + GenerateCode(entry); + } else { + parent_stack_.back().children.push_back(entry); + } + } + + private: + struct ViewEntry { + std::string name; + std::vector<ViewEntry> children; + }; + + void GenerateCode(const ViewEntry& view) { + builder_->StartView(view.name, !view.children.empty()); + for (const auto& child : view.children) { + GenerateCode(child); + } + builder_->FinishView(); + } + + Builder* builder_; + + std::vector<ViewEntry> parent_stack_; +}; + +class DexViewBuilder { + public: + DexViewBuilder(dex::MethodBuilder* method); + + void Start(); + void Finish(); + void StartView(const std::string& name, bool is_viewgroup); + void FinishView(); + + private: + // Accessors for the stack of views that are under construction. + dex::Value AcquireRegister(); + void ReleaseRegister(); + dex::Value GetCurrentView() const; + dex::Value GetCurrentLayoutParams() const; + dex::Value GetParentView() const; + void PopViewStack(); + + dex::MethodBuilder* method_; + + // Registers used for code generation + dex::Value const context_; + dex::Value const resid_; + const dex::Value inflater_; + const dex::Value xml_; + const dex::Value attrs_; + const dex::Value classname_tmp_; + + const dex::MethodDeclData xml_next_; + const dex::MethodDeclData try_create_view_; + const dex::MethodDeclData generate_layout_params_; + const dex::MethodDeclData add_view_; + + // used for keeping track of which registers are in use + size_t top_register_{0}; + std::vector<dex::Value> register_stack_; + + // Keep track of the views currently in progress. + struct ViewEntry { + dex::Value view; + std::optional<dex::Value> layout_params; + }; + std::vector<ViewEntry> view_stack_; +}; + +} // namespace startop + +#endif // DEX_LAYOUT_COMPILER_H_ |