| // 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.graph.analysis; |
| |
| import com.android.tools.r8.androidapi.AndroidApiLevelCompute; |
| import com.android.tools.r8.androidapi.ComputedApiLevel; |
| import com.android.tools.r8.graph.AppView; |
| import com.android.tools.r8.graph.DexClassAndMember; |
| import com.android.tools.r8.graph.DexEncodedMethod; |
| import com.android.tools.r8.graph.LookupTarget; |
| import com.android.tools.r8.graph.ProgramDefinition; |
| import com.android.tools.r8.graph.ProgramField; |
| import com.android.tools.r8.graph.ProgramMethod; |
| import com.android.tools.r8.shaking.DefaultEnqueuerUseRegistry; |
| |
| public class ApiModelAnalysis extends EnqueuerAnalysis { |
| |
| private final AppView<?> appView; |
| private final AndroidApiLevelCompute apiCompute; |
| private final ComputedApiLevel minApiLevel; |
| |
| public ApiModelAnalysis(AppView<?> appView, AndroidApiLevelCompute apiCompute) { |
| this.appView = appView; |
| this.apiCompute = apiCompute; |
| this.minApiLevel = appView.computedMinApiLevel(); |
| } |
| |
| @Override |
| public void processNewlyLiveField(ProgramField field, ProgramDefinition context) { |
| computeAndSetApiLevelForDefinition(field); |
| } |
| |
| @Override |
| public void processNewlyLiveMethod(ProgramMethod method, ProgramDefinition context) { |
| computeAndSetApiLevelForDefinition(method); |
| } |
| |
| @Override |
| public void processTracedCode(ProgramMethod method, DefaultEnqueuerUseRegistry registry) { |
| assert registry.getMaxApiReferenceLevel().isGreaterThanOrEqualTo(minApiLevel); |
| if (appView.options().apiModelingOptions().tracedMethodApiLevelCallback != null) { |
| appView |
| .options() |
| .apiModelingOptions() |
| .tracedMethodApiLevelCallback |
| .accept(method.getMethodReference(), registry.getMaxApiReferenceLevel()); |
| } |
| computeAndSetApiLevelForDefinition(method); |
| method.getDefinition().setApiLevelForCode(registry.getMaxApiReferenceLevel()); |
| } |
| |
| @Override |
| public void notifyMarkMethodAsTargeted(ProgramMethod method) { |
| computeAndSetApiLevelForDefinition(method); |
| } |
| |
| @Override |
| public void notifyMarkFieldAsReachable(ProgramField field) { |
| computeAndSetApiLevelForDefinition(field); |
| } |
| |
| @Override |
| public void notifyMarkVirtualDispatchTargetAsLive(LookupTarget target) { |
| target.accept( |
| this::computeAndSetApiLevelForDefinition, |
| lookupLambdaTarget -> { |
| // The implementation method will be assigned an api level when visited. |
| }); |
| } |
| |
| @Override |
| public void notifyFailedMethodResolutionTarget(DexEncodedMethod method) { |
| // We may not trace into failed resolution targets. |
| method.setApiLevelForCode(ComputedApiLevel.unknown()); |
| } |
| |
| private void computeAndSetApiLevelForDefinition(DexClassAndMember<?, ?> member) { |
| member |
| .getDefinition() |
| .setApiLevelForDefinition( |
| apiCompute.computeApiLevelForDefinition( |
| member.getReference(), |
| appView.dexItemFactory(), |
| apiCompute.getPlatformApiLevelOrUnknown(appView))); |
| } |
| } |