| // Copyright (c) 2021, the R8 project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| |
| package com.android.tools.r8.experimental.startup; |
| |
| import com.android.tools.r8.graph.DexMethod; |
| import com.android.tools.r8.graph.DexType; |
| import com.android.tools.r8.startup.StartupProfileProvider; |
| import com.android.tools.r8.utils.InternalOptions; |
| import com.android.tools.r8.utils.StringDiagnostic; |
| import com.android.tools.r8.utils.StringUtils; |
| import com.google.common.collect.ImmutableList; |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.function.Consumer; |
| |
| public class StartupProfile { |
| |
| private final List<StartupItem<DexType, DexMethod, ?>> startupItems; |
| |
| public StartupProfile(List<StartupItem<DexType, DexMethod, ?>> startupItems) { |
| this.startupItems = startupItems; |
| } |
| |
| public static Builder builder() { |
| return new Builder(); |
| } |
| |
| /** |
| * Parses the supplied startup configuration, if any. The startup configuration is a list of class |
| * and method descriptors. |
| * |
| * <p>Example: |
| * |
| * <pre> |
| * Landroidx/compose/runtime/ComposerImpl;->updateValue(Ljava/lang/Object;)V |
| * Landroidx/compose/runtime/ComposerImpl;->updatedNodeCount(I)I |
| * Landroidx/compose/runtime/ComposerImpl;->validateNodeExpected()V |
| * Landroidx/compose/runtime/CompositionImpl;->applyChanges()V |
| * Landroidx/compose/runtime/ComposerKt;->findLocation(Ljava/util/List;I)I |
| * Landroidx/compose/runtime/ComposerImpl; |
| * </pre> |
| */ |
| public static StartupProfile parseStartupProfile(InternalOptions options) { |
| if (!options.getStartupOptions().hasStartupProfileProvider()) { |
| return null; |
| } |
| StartupProfileProvider resource = options.getStartupOptions().getStartupProfileProvider(); |
| List<String> startupDescriptors = StringUtils.splitLines(resource.get()); |
| return createStartupConfigurationFromLines(options, startupDescriptors); |
| } |
| |
| public static StartupProfile createStartupConfigurationFromLines( |
| InternalOptions options, List<String> startupDescriptors) { |
| List<StartupItem<DexType, DexMethod, ?>> startupItems = new ArrayList<>(); |
| StartupConfigurationParser.createDexParser(options.dexItemFactory()) |
| .parseLines( |
| startupDescriptors, |
| startupItems::add, |
| startupItems::add, |
| error -> |
| options.reporter.warning( |
| new StringDiagnostic( |
| "Invalid descriptor for startup class or method: " + error))); |
| return new StartupProfile(startupItems); |
| } |
| |
| public List<StartupItem<DexType, DexMethod, ?>> getStartupItems() { |
| return startupItems; |
| } |
| |
| public String serializeToString() { |
| StringBuilder builder = new StringBuilder(); |
| for (StartupItem<DexType, DexMethod, ?> startupItem : startupItems) { |
| startupItem.serializeToString(builder, DexType::toSmaliString, DexMethod::toSmaliString); |
| builder.append('\n'); |
| } |
| return builder.toString(); |
| } |
| |
| public static class Builder { |
| |
| private final ImmutableList.Builder<StartupItem<DexType, DexMethod, ?>> startupItemsBuilder = |
| ImmutableList.builder(); |
| |
| public Builder addStartupItem(StartupItem<DexType, DexMethod, ?> startupItem) { |
| this.startupItemsBuilder.add(startupItem); |
| return this; |
| } |
| |
| public Builder addStartupClass(StartupClass<DexType, DexMethod> startupClass) { |
| return addStartupItem(startupClass); |
| } |
| |
| public Builder addStartupMethod(StartupMethod<DexType, DexMethod> startupMethod) { |
| return addStartupItem(startupMethod); |
| } |
| |
| public Builder apply(Consumer<Builder> consumer) { |
| consumer.accept(this); |
| return this; |
| } |
| |
| public StartupProfile build() { |
| return new StartupProfile(startupItemsBuilder.build()); |
| } |
| } |
| } |