| // 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.collections; |
| |
| import com.android.tools.r8.graph.DexClassAndMethod; |
| import com.android.tools.r8.graph.DexEncodedMethod; |
| import com.android.tools.r8.graph.DexMethod; |
| import com.google.common.collect.Sets; |
| import java.util.IdentityHashMap; |
| import java.util.Iterator; |
| import java.util.Map; |
| import java.util.Set; |
| import java.util.function.Supplier; |
| import java.util.stream.Stream; |
| |
| public abstract class DexClassAndMethodSetBase<T extends DexClassAndMethod> implements Iterable<T> { |
| |
| protected final Map<DexMethod, T> backing; |
| protected final Supplier<? extends Map<DexMethod, T>> backingFactory; |
| |
| protected DexClassAndMethodSetBase(Supplier<? extends Map<DexMethod, T>> backingFactory) { |
| this(backingFactory, backingFactory.get()); |
| } |
| |
| protected DexClassAndMethodSetBase( |
| Supplier<? extends Map<DexMethod, T>> backingFactory, Map<DexMethod, T> backing) { |
| this.backing = backing; |
| this.backingFactory = backingFactory; |
| } |
| |
| public boolean add(T method) { |
| T existing = backing.put(method.getReference(), method); |
| assert existing == null || existing.isStructurallyEqualTo(method); |
| return existing == null; |
| } |
| |
| public void addAll(Iterable<T> methods) { |
| methods.forEach(this::add); |
| } |
| |
| public boolean contains(DexEncodedMethod method) { |
| return backing.containsKey(method.getReference()); |
| } |
| |
| public boolean contains(T method) { |
| return backing.containsKey(method.getReference()); |
| } |
| |
| public void clear() { |
| backing.clear(); |
| } |
| |
| public boolean isEmpty() { |
| return backing.isEmpty(); |
| } |
| |
| @Override |
| public Iterator<T> iterator() { |
| return backing.values().iterator(); |
| } |
| |
| public boolean remove(DexMethod method) { |
| T existing = backing.remove(method); |
| return existing != null; |
| } |
| |
| public boolean remove(DexEncodedMethod method) { |
| return remove(method.getReference()); |
| } |
| |
| public int size() { |
| return backing.size(); |
| } |
| |
| public Stream<T> stream() { |
| return backing.values().stream(); |
| } |
| |
| public Set<DexEncodedMethod> toDefinitionSet() { |
| assert backing instanceof IdentityHashMap; |
| Set<DexEncodedMethod> definitions = Sets.newIdentityHashSet(); |
| forEach(method -> definitions.add(method.getDefinition())); |
| return definitions; |
| } |
| } |