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authorScott Lobdell <slobdell@google.com>2019-01-31 11:53:41 -0800
committerScott Lobdell <slobdell@google.com>2019-02-01 14:08:42 -0800
commit88b45c586d461df38b866d529bc98d1dfa3e8838 (patch)
treeae57a86275dac94c0899015923778f3016c865b2 /startop/view_compiler/dex_layout_compiler.cc
parent067596650927fa91a97355e84b152b21826f7ae2 (diff)
parent9b9ca46fc2d3da231bf9ef6ff630105720f94cf2 (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.cc')
-rw-r--r--startop/view_compiler/dex_layout_compiler.cc226
1 files changed, 226 insertions, 0 deletions
diff --git a/startop/view_compiler/dex_layout_compiler.cc b/startop/view_compiler/dex_layout_compiler.cc
new file mode 100644
index 000000000000..c68793d10399
--- /dev/null
+++ b/startop/view_compiler/dex_layout_compiler.cc
@@ -0,0 +1,226 @@
+/*
+ * 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.
+ */
+
+#include "dex_layout_compiler.h"
+#include "layout_validation.h"
+
+#include "android-base/stringprintf.h"
+
+namespace startop {
+
+using android::base::StringPrintf;
+
+void LayoutValidationVisitor::VisitStartTag(const std::u16string& name) {
+ if (0 == name.compare(u"merge")) {
+ message_ = "Merge tags are not supported";
+ can_compile_ = false;
+ }
+ if (0 == name.compare(u"include")) {
+ message_ = "Include tags are not supported";
+ can_compile_ = false;
+ }
+ if (0 == name.compare(u"view")) {
+ message_ = "View tags are not supported";
+ can_compile_ = false;
+ }
+ if (0 == name.compare(u"fragment")) {
+ message_ = "Fragment tags are not supported";
+ can_compile_ = false;
+ }
+}
+
+DexViewBuilder::DexViewBuilder(dex::MethodBuilder* method)
+ : method_{method},
+ context_{dex::Value::Parameter(0)},
+ resid_{dex::Value::Parameter(1)},
+ inflater_{method->MakeRegister()},
+ xml_{method->MakeRegister()},
+ attrs_{method->MakeRegister()},
+ classname_tmp_{method->MakeRegister()},
+ xml_next_{method->dex_file()->GetOrDeclareMethod(
+ dex::TypeDescriptor::FromClassname("android.content.res.XmlResourceParser"), "next",
+ dex::Prototype{dex::TypeDescriptor::Int()})},
+ try_create_view_{method->dex_file()->GetOrDeclareMethod(
+ dex::TypeDescriptor::FromClassname("android.view.LayoutInflater"), "tryCreateView",
+ dex::Prototype{dex::TypeDescriptor::FromClassname("android.view.View"),
+ dex::TypeDescriptor::FromClassname("android.view.View"),
+ dex::TypeDescriptor::FromClassname("java.lang.String"),
+ dex::TypeDescriptor::FromClassname("android.content.Context"),
+ dex::TypeDescriptor::FromClassname("android.util.AttributeSet")})},
+ generate_layout_params_{method->dex_file()->GetOrDeclareMethod(
+ dex::TypeDescriptor::FromClassname("android.view.ViewGroup"), "generateLayoutParams",
+ dex::Prototype{dex::TypeDescriptor::FromClassname("android.view.ViewGroup$LayoutParams"),
+ dex::TypeDescriptor::FromClassname("android.util.AttributeSet")})},
+ add_view_{method->dex_file()->GetOrDeclareMethod(
+ dex::TypeDescriptor::FromClassname("android.view.ViewGroup"), "addView",
+ dex::Prototype{
+ dex::TypeDescriptor::Void(),
+ dex::TypeDescriptor::FromClassname("android.view.View"),
+ dex::TypeDescriptor::FromClassname("android.view.ViewGroup$LayoutParams")})},
+ // The register stack starts with one register, which will be null for the root view.
+ register_stack_{{method->MakeRegister()}} {}
+
+void DexViewBuilder::Start() {
+ dex::DexBuilder* const dex = method_->dex_file();
+
+ // LayoutInflater inflater = LayoutInflater.from(context);
+ auto layout_inflater_from = dex->GetOrDeclareMethod(
+ dex::TypeDescriptor::FromClassname("android.view.LayoutInflater"),
+ "from",
+ dex::Prototype{dex::TypeDescriptor::FromClassname("android.view.LayoutInflater"),
+ dex::TypeDescriptor::FromClassname("android.content.Context")});
+ method_->AddInstruction(
+ dex::Instruction::InvokeStaticObject(layout_inflater_from.id, /*dest=*/inflater_, context_));
+
+ // Resources res = context.getResources();
+ auto context_type = dex::TypeDescriptor::FromClassname("android.content.Context");
+ auto resources_type = dex::TypeDescriptor::FromClassname("android.content.res.Resources");
+ auto get_resources =
+ dex->GetOrDeclareMethod(context_type, "getResources", dex::Prototype{resources_type});
+ method_->AddInstruction(dex::Instruction::InvokeVirtualObject(get_resources.id, xml_, context_));
+
+ // XmlResourceParser xml = res.getLayout(resid);
+ auto xml_resource_parser_type =
+ dex::TypeDescriptor::FromClassname("android.content.res.XmlResourceParser");
+ auto get_layout =
+ dex->GetOrDeclareMethod(resources_type,
+ "getLayout",
+ dex::Prototype{xml_resource_parser_type, dex::TypeDescriptor::Int()});
+ method_->AddInstruction(dex::Instruction::InvokeVirtualObject(get_layout.id, xml_, xml_, resid_));
+
+ // AttributeSet attrs = Xml.asAttributeSet(xml);
+ auto as_attribute_set = dex->GetOrDeclareMethod(
+ dex::TypeDescriptor::FromClassname("android.util.Xml"),
+ "asAttributeSet",
+ dex::Prototype{dex::TypeDescriptor::FromClassname("android.util.AttributeSet"),
+ dex::TypeDescriptor::FromClassname("org.xmlpull.v1.XmlPullParser")});
+ method_->AddInstruction(dex::Instruction::InvokeStaticObject(as_attribute_set.id, attrs_, xml_));
+
+ // xml.next(); // start document
+ method_->AddInstruction(dex::Instruction::InvokeInterface(xml_next_.id, {}, xml_));
+}
+
+void DexViewBuilder::Finish() {}
+
+namespace {
+std::string ResolveName(const std::string& name) {
+ if (name == "View") return "android.view.View";
+ if (name == "ViewGroup") return "android.view.ViewGroup";
+ if (name.find(".") == std::string::npos) {
+ return StringPrintf("android.widget.%s", name.c_str());
+ }
+ return name;
+}
+} // namespace
+
+void DexViewBuilder::StartView(const std::string& name, bool is_viewgroup) {
+ bool const is_root_view = view_stack_.empty();
+
+ // xml.next(); // start tag
+ method_->AddInstruction(dex::Instruction::InvokeInterface(xml_next_.id, {}, xml_));
+
+ dex::Value view = AcquireRegister();
+ // try to create the view using the factories
+ method_->BuildConstString(classname_tmp_,
+ name); // TODO: the need to fully qualify the classname
+ if (is_root_view) {
+ dex::Value null = AcquireRegister();
+ method_->BuildConst4(null, 0);
+ method_->AddInstruction(dex::Instruction::InvokeVirtualObject(
+ try_create_view_.id, view, inflater_, null, classname_tmp_, context_, attrs_));
+ ReleaseRegister();
+ } else {
+ method_->AddInstruction(dex::Instruction::InvokeVirtualObject(
+ try_create_view_.id, view, inflater_, GetCurrentView(), classname_tmp_, context_, attrs_));
+ }
+ auto label = method_->MakeLabel();
+ // branch if not null
+ method_->AddInstruction(
+ dex::Instruction::OpWithArgs(dex::Instruction::Op::kBranchNEqz, /*dest=*/{}, view, label));
+
+ // If null, create the class directly.
+ method_->BuildNew(view,
+ dex::TypeDescriptor::FromClassname(ResolveName(name)),
+ dex::Prototype{dex::TypeDescriptor::Void(),
+ dex::TypeDescriptor::FromClassname("android.content.Context"),
+ dex::TypeDescriptor::FromClassname("android.util.AttributeSet")},
+ context_,
+ attrs_);
+
+ method_->AddInstruction(
+ dex::Instruction::OpWithArgs(dex::Instruction::Op::kBindLabel, /*dest=*/{}, label));
+
+ if (is_viewgroup) {
+ // Cast to a ViewGroup so we can add children later.
+ const ir::Type* view_group_def = method_->dex_file()->GetOrAddType(
+ dex::TypeDescriptor::FromClassname("android.view.ViewGroup").descriptor());
+ method_->AddInstruction(dex::Instruction::Cast(view, dex::Value::Type(view_group_def->orig_index)));
+ }
+
+ if (!is_root_view) {
+ // layout_params = parent.generateLayoutParams(attrs);
+ dex::Value layout_params{AcquireRegister()};
+ method_->AddInstruction(dex::Instruction::InvokeVirtualObject(
+ generate_layout_params_.id, layout_params, GetCurrentView(), attrs_));
+ view_stack_.push_back({view, layout_params});
+ } else {
+ view_stack_.push_back({view, {}});
+ }
+}
+
+void DexViewBuilder::FinishView() {
+ if (view_stack_.size() == 1) {
+ method_->BuildReturn(GetCurrentView(), /*is_object=*/true);
+ } else {
+ // parent.add(view, layout_params)
+ method_->AddInstruction(dex::Instruction::InvokeVirtual(
+ add_view_.id, /*dest=*/{}, GetParentView(), GetCurrentView(), GetCurrentLayoutParams()));
+ // xml.next(); // end tag
+ method_->AddInstruction(dex::Instruction::InvokeInterface(xml_next_.id, {}, xml_));
+ }
+ PopViewStack();
+}
+
+dex::Value DexViewBuilder::AcquireRegister() {
+ top_register_++;
+ if (register_stack_.size() == top_register_) {
+ register_stack_.push_back(method_->MakeRegister());
+ }
+ return register_stack_[top_register_];
+}
+
+void DexViewBuilder::ReleaseRegister() { top_register_--; }
+
+dex::Value DexViewBuilder::GetCurrentView() const { return view_stack_.back().view; }
+dex::Value DexViewBuilder::GetCurrentLayoutParams() const {
+ return view_stack_.back().layout_params.value();
+}
+dex::Value DexViewBuilder::GetParentView() const {
+ return view_stack_[view_stack_.size() - 2].view;
+}
+
+void DexViewBuilder::PopViewStack() {
+ const auto& top = view_stack_.back();
+ // release the layout params if we have them
+ if (top.layout_params.has_value()) {
+ ReleaseRegister();
+ }
+ // Unconditionally release the view register.
+ ReleaseRegister();
+ view_stack_.pop_back();
+}
+
+} // namespace startop \ No newline at end of file