| // 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.optimize.argumentpropagation; |
| |
| import com.android.tools.r8.graph.AppView; |
| import com.android.tools.r8.graph.DexField; |
| import com.android.tools.r8.graph.DexMethod; |
| import com.android.tools.r8.graph.DexType; |
| import com.android.tools.r8.graph.GraphLens; |
| import com.android.tools.r8.graph.GraphLens.NonIdentityGraphLens; |
| import com.android.tools.r8.graph.RewrittenPrototypeDescription; |
| import com.android.tools.r8.shaking.AppInfoWithLiveness; |
| |
| public class ArgumentPropagatorGraphLens extends NonIdentityGraphLens { |
| |
| ArgumentPropagatorGraphLens(AppView<AppInfoWithLiveness> appView) { |
| super(appView); |
| } |
| |
| public static Builder builder(AppView<AppInfoWithLiveness> appView) { |
| return new Builder(appView); |
| } |
| |
| @Override |
| public DexType getOriginalType(DexType type) { |
| return getPrevious().getOriginalType(type); |
| } |
| |
| @Override |
| public Iterable<DexType> getOriginalTypes(DexType type) { |
| return getPrevious().getOriginalTypes(type); |
| } |
| |
| @Override |
| public DexField getOriginalFieldSignature(DexField field) { |
| return getPrevious().getOriginalFieldSignature(field); |
| } |
| |
| @Override |
| public DexField getRenamedFieldSignature(DexField originalField) { |
| return getPrevious().getRenamedFieldSignature(originalField); |
| } |
| |
| @Override |
| public DexMethod getOriginalMethodSignature(DexMethod method) { |
| return getPrevious().getOriginalMethodSignature(method); |
| } |
| |
| @Override |
| public DexMethod getRenamedMethodSignature(DexMethod originalMethod, GraphLens applied) { |
| return applied != this |
| ? getPrevious().getRenamedMethodSignature(originalMethod, applied) |
| : originalMethod; |
| } |
| |
| @Override |
| protected DexType internalDescribeLookupClassType(DexType previous) { |
| return previous; |
| } |
| |
| @Override |
| protected FieldLookupResult internalDescribeLookupField(FieldLookupResult previous) { |
| return previous; |
| } |
| |
| @Override |
| protected MethodLookupResult internalDescribeLookupMethod( |
| MethodLookupResult previous, DexMethod context) { |
| return previous; |
| } |
| |
| @Override |
| protected DexMethod internalGetPreviousMethodSignature(DexMethod method) { |
| return method; |
| } |
| |
| @Override |
| public boolean isContextFreeForMethods() { |
| return getPrevious().isContextFreeForMethods(); |
| } |
| |
| @Override |
| public RewrittenPrototypeDescription lookupPrototypeChangesForMethodDefinition(DexMethod method) { |
| return getPrevious().lookupPrototypeChangesForMethodDefinition(method); |
| } |
| |
| public static class Builder { |
| |
| private final AppView<AppInfoWithLiveness> appView; |
| |
| Builder(AppView<AppInfoWithLiveness> appView) { |
| this.appView = appView; |
| } |
| |
| public ArgumentPropagatorGraphLens.Builder mergeDisjoint( |
| ArgumentPropagatorGraphLens.Builder partialGraphLensBuilder) { |
| // TODO(b/190154391): Implement. |
| return this; |
| } |
| |
| public ArgumentPropagatorGraphLens build() { |
| // TODO(b/190154391): Implement. |
| return null; |
| } |
| } |
| } |