| // Copyright (c) 2016, 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; |
| |
| import static com.android.tools.r8.utils.PredicateUtils.not; |
| |
| import com.android.tools.r8.dex.IndexedItemCollection; |
| import com.android.tools.r8.dex.MixedSectionCollection; |
| import com.android.tools.r8.utils.ArrayUtils; |
| import com.android.tools.r8.utils.structural.StructuralItem; |
| import com.android.tools.r8.utils.structural.StructuralMapping; |
| import com.android.tools.r8.utils.structural.StructuralSpecification; |
| import com.google.common.collect.Iterators; |
| import java.util.Arrays; |
| import java.util.Collection; |
| import java.util.Iterator; |
| import java.util.function.Consumer; |
| import java.util.function.Function; |
| import java.util.function.Predicate; |
| import java.util.stream.Stream; |
| |
| public class DexTypeList extends DexItem implements Iterable<DexType>, StructuralItem<DexTypeList> { |
| |
| private static final DexTypeList theEmptyTypeList = new DexTypeList(); |
| |
| public final DexType[] values; |
| |
| private static void specify(StructuralSpecification<DexTypeList, ?> spec) { |
| spec.withItemArray(ts -> ts.values); |
| } |
| |
| public static DexTypeList empty() { |
| return theEmptyTypeList; |
| } |
| |
| private DexTypeList() { |
| this.values = DexType.EMPTY_ARRAY; |
| } |
| |
| public DexTypeList(DexType[] values) { |
| assert values != null && values.length > 0; |
| this.values = values; |
| } |
| |
| public DexTypeList(Collection<DexType> values) { |
| this(values.toArray(DexType.EMPTY_ARRAY)); |
| } |
| |
| public static DexTypeList create(DexType[] values) { |
| return values.length == 0 ? DexTypeList.empty() : new DexTypeList(values); |
| } |
| |
| public static DexTypeList create(Collection<DexType> values) { |
| return values.isEmpty() ? DexTypeList.empty() : new DexTypeList(values); |
| } |
| |
| public DexType get(int index) { |
| return values[index]; |
| } |
| |
| public DexType[] getBacking() { |
| return values; |
| } |
| |
| public DexTypeList keepIf(Predicate<DexType> predicate) { |
| DexType[] filtered = ArrayUtils.filter(DexType[].class, values, predicate); |
| if (filtered != values) { |
| return DexTypeList.create(filtered); |
| } |
| return this; |
| } |
| |
| public DexTypeList map(Function<DexType, DexType> fn) { |
| if (isEmpty()) { |
| return DexTypeList.empty(); |
| } |
| DexType[] newTypes = ArrayUtils.map(values, fn, DexType.EMPTY_ARRAY); |
| return newTypes != values ? create(newTypes) : this; |
| } |
| |
| public DexTypeList removeIf(Predicate<DexType> predicate) { |
| return keepIf(not(predicate)); |
| } |
| |
| @Override |
| public DexTypeList self() { |
| return this; |
| } |
| |
| @Override |
| public StructuralMapping<DexTypeList> getStructuralMapping() { |
| return DexTypeList::specify; |
| } |
| |
| public boolean contains(DexType type) { |
| return ArrayUtils.contains(values, type); |
| } |
| |
| @Override |
| public void forEach(Consumer<? super DexType> consumer) { |
| for (DexType value : values) { |
| consumer.accept(value); |
| } |
| } |
| |
| @Override |
| public int hashCode() { |
| return Arrays.hashCode(values); |
| } |
| |
| void collectIndexedItems(IndexedItemCollection indexedItems) { |
| for (DexType type : values) { |
| type.collectIndexedItems(indexedItems); |
| } |
| } |
| |
| @Override |
| void collectMixedSectionItems(MixedSectionCollection mixedItems) { |
| mixedItems.add(this); |
| } |
| |
| @Override |
| public boolean equals(Object other) { |
| if (this == other) { |
| return true; |
| } |
| return (other instanceof DexTypeList) |
| && Arrays.equals(values, ((DexTypeList) other).values); |
| } |
| |
| public boolean isEmpty() { |
| return values.length == 0; |
| } |
| |
| public int size() { |
| return values.length; |
| } |
| |
| public Stream<DexType> stream() { |
| return Stream.of(values); |
| } |
| |
| @Override |
| public String toString() { |
| StringBuilder builder = new StringBuilder(); |
| if (values.length > 0) { |
| builder.append(values[0]); |
| for (int i = 1; i < values.length; i++) { |
| builder.append(' ').append(values[i]); |
| } |
| } |
| return builder.toString(); |
| } |
| |
| @Override |
| public Iterator<DexType> iterator() { |
| return Iterators.forArray(values); |
| } |
| |
| public DexTypeList getSorted() { |
| if (values.length <= 1) { |
| return this; |
| } |
| |
| DexType[] newValues = values.clone(); |
| Arrays.sort(newValues); |
| return new DexTypeList(newValues); |
| } |
| } |