| // Copyright (c) 2020, 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.utils.structural; |
| |
| import com.android.tools.r8.graph.DexField; |
| import com.android.tools.r8.graph.DexMethod; |
| import com.android.tools.r8.graph.DexReference; |
| import com.android.tools.r8.graph.DexString; |
| import com.android.tools.r8.graph.DexType; |
| import com.android.tools.r8.utils.structural.StructuralItem.CompareToAccept; |
| import java.util.Arrays; |
| import java.util.Collection; |
| import java.util.Comparator; |
| import java.util.Iterator; |
| |
| /** Base class for a visitor implementing compareTo on a structural item. */ |
| public abstract class CompareToVisitor { |
| |
| public abstract int visitBool(boolean value1, boolean value2); |
| |
| public abstract int visitInt(int value1, int value2); |
| |
| public abstract int visitLong(long value1, long value2); |
| |
| public abstract int visitFloat(float value1, float value2); |
| |
| public abstract int visitDouble(double value1, double value2); |
| |
| /** Base for visiting an enumeration of items. */ |
| public abstract <S> int visitItemIterator( |
| Iterator<S> it1, Iterator<S> it2, CompareToAccept<S> compareToAccept); |
| |
| public final <S extends StructuralItem<S>> int visitItemArray(S[] items1, S[] items2) { |
| return visitItemCollection(Arrays.asList(items1), Arrays.asList(items2)); |
| } |
| |
| public final <S extends StructuralItem<S>> int visitItemCollection( |
| Collection<S> items1, Collection<S> items2) { |
| return visitItemIterator(items1.iterator(), items2.iterator(), StructuralItem::acceptCompareTo); |
| } |
| |
| public abstract int visitDexString(DexString string1, DexString string2); |
| |
| public abstract int visitDexType(DexType type1, DexType type2); |
| |
| public int visitDexField(DexField field1, DexField field2) { |
| return visit(field1, field2, field1.getStructuralMapping()); |
| } |
| |
| public int visitDexMethod(DexMethod method1, DexMethod method2) { |
| return visit(method1, method2, method1.getStructuralMapping()); |
| } |
| |
| public abstract int visitDexReference(DexReference reference1, DexReference reference2); |
| |
| public abstract <S> int visit(S item1, S item2, StructuralMapping<S> accept); |
| |
| @Deprecated |
| public abstract <S> int visit(S item1, S item2, Comparator<S> comparator); |
| } |