| // 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.graph.AppView; |
| import com.android.tools.r8.graph.DexEncodedMember; |
| import com.android.tools.r8.graph.DexMember; |
| import com.android.tools.r8.graph.DexReference; |
| 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.ir.optimize.info.DefaultFieldOptimizationWithMinApiInfo; |
| import com.android.tools.r8.ir.optimize.info.DefaultMethodOptimizationWithMinApiInfo; |
| import com.android.tools.r8.ir.optimize.info.MemberOptimizationInfo; |
| import com.android.tools.r8.shaking.DefaultEnqueuerUseRegistry; |
| import com.android.tools.r8.utils.AndroidApiLevel; |
| import java.util.Map; |
| |
| public class ApiModelAnalysis extends EnqueuerAnalysis { |
| |
| private final AppView<?> appView; |
| private final AndroidApiLevel minApiLevel; |
| private final Map<DexReference, AndroidApiLevel> referenceToApiLevelMap; |
| |
| public ApiModelAnalysis( |
| AppView<?> appView, Map<DexReference, AndroidApiLevel> referenceToApiLevelMap) { |
| this.appView = appView; |
| this.minApiLevel = appView.options().minApiLevel; |
| this.referenceToApiLevelMap = referenceToApiLevelMap; |
| } |
| |
| @Override |
| public void processNewlyLiveField(ProgramField field, ProgramDefinition context) { |
| setApiLevelForMember( |
| field.getDefinition(), computeApiLevelForReferencedTypes(field.getReference())); |
| } |
| |
| @Override |
| public void processNewlyLiveMethod(ProgramMethod method, ProgramDefinition context) { |
| setApiLevelForMember( |
| method.getDefinition(), computeApiLevelForReferencedTypes(method.getReference())); |
| } |
| |
| @Override |
| public void processTracedCode(ProgramMethod method, DefaultEnqueuerUseRegistry registry) { |
| assert registry.getMaxApiReferenceLevel().isGreaterThanOrEqualTo(minApiLevel); |
| setApiLevelForMember(method.getDefinition(), registry.getMaxApiReferenceLevel()); |
| } |
| |
| private void setApiLevelForMember(DexEncodedMember<?, ?> member, AndroidApiLevel apiLevel) { |
| // To not have mutable update information for all members that all has min api level we |
| // swap the default optimization info for one with that marks the api level to be min api. |
| MemberOptimizationInfo<?> optimizationInfo = member.getOptimizationInfo(); |
| if (!optimizationInfo.isMutableOptimizationInfo() && apiLevel == minApiLevel) { |
| member.apply( |
| field -> { |
| field.setMinApiOptimizationInfo(DefaultFieldOptimizationWithMinApiInfo.getInstance()); |
| }, |
| method -> { |
| method.setMinApiOptimizationInfo(DefaultMethodOptimizationWithMinApiInfo.getInstance()); |
| }); |
| } else { |
| AndroidApiLevel maxApiLevel = |
| optimizationInfo.hasApiReferenceLevel() |
| ? apiLevel.max(optimizationInfo.getApiReferenceLevel(minApiLevel)) |
| : apiLevel; |
| member.apply( |
| field -> { |
| field.getMutableOptimizationInfo().setApiReferenceLevel(maxApiLevel); |
| }, |
| method -> { |
| method.getMutableOptimizationInfo().setApiReferenceLevel(maxApiLevel); |
| }); |
| } |
| } |
| |
| private AndroidApiLevel computeApiLevelForReferencedTypes(DexMember<?, ?> member) { |
| return member.computeApiLevelForReferencedTypes(appView, referenceToApiLevelMap); |
| } |
| } |