| // 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.errors.dontwarn; |
| |
| import static java.util.Collections.emptySet; |
| |
| import com.android.tools.r8.graph.DexType; |
| import com.android.tools.r8.shaking.ProguardClassFilter; |
| import com.android.tools.r8.shaking.ProguardClassNameList; |
| import com.android.tools.r8.utils.InternalOptions; |
| import com.google.common.collect.Sets; |
| import java.util.IdentityHashMap; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Set; |
| |
| public class NonEmptyDontWarnConfiguration extends DontWarnConfiguration { |
| |
| private final List<ProguardClassNameList> dontWarnPatterns; |
| private final Map<ProguardClassNameList, Set<DexType>> matchedDontWarnPatterns = |
| new IdentityHashMap<>(); |
| |
| NonEmptyDontWarnConfiguration(ProguardClassFilter dontWarnPatterns) { |
| assert dontWarnPatterns != null; |
| assert !dontWarnPatterns.isEmpty(); |
| this.dontWarnPatterns = dontWarnPatterns.getPatterns(); |
| } |
| |
| @Override |
| public boolean matches(DexType type) { |
| for (ProguardClassNameList dontWarnPattern : dontWarnPatterns) { |
| if (dontWarnPattern.matches(type)) { |
| recordMatch(dontWarnPattern, type); |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| private void recordMatch(ProguardClassNameList dontWarnPattern, DexType type) { |
| if (InternalOptions.assertionsEnabled()) { |
| matchedDontWarnPatterns |
| .computeIfAbsent(dontWarnPattern, ignore -> Sets.newIdentityHashSet()) |
| .add(type); |
| } |
| } |
| |
| @Override |
| public boolean validate(InternalOptions options) { |
| assert options.testing.allowUnnecessaryDontWarnWildcards |
| || validateNoUnnecessaryDontWarnWildcards(); |
| assert options.testing.allowUnusedDontWarnRules || validateNoUnusedDontWarnPatterns(options); |
| return true; |
| } |
| |
| public boolean validateNoUnnecessaryDontWarnWildcards() { |
| for (ProguardClassNameList dontWarnPattern : dontWarnPatterns) { |
| assert !dontWarnPattern.hasWildcards() |
| || matchedDontWarnPatterns.getOrDefault(dontWarnPattern, emptySet()).size() != 1 |
| : "Unexpected unnecessary wildcard in -dontwarn " |
| + dontWarnPattern.toString() |
| + " (only matches " |
| + matchedDontWarnPatterns.get(dontWarnPattern).iterator().next().getTypeName() |
| + ")"; |
| } |
| return true; |
| } |
| |
| public boolean validateNoUnusedDontWarnPatterns(InternalOptions options) { |
| for (ProguardClassNameList dontWarnPattern : dontWarnPatterns) { |
| assert matchedDontWarnPatterns.containsKey(dontWarnPattern) |
| || options.testing.allowedUnusedDontWarnPatterns.contains(dontWarnPattern.toString()) |
| : "Unexpected unused rule -dontwarn " + dontWarnPattern.toString(); |
| } |
| return true; |
| } |
| } |