| // 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.ir.desugar.desugaredlibrary.legacyspecification; |
| |
| import com.android.tools.r8.errors.CompilationError; |
| import com.android.tools.r8.graph.DexItemFactory; |
| import com.android.tools.r8.graph.DexString; |
| import com.android.tools.r8.graph.DexType; |
| import com.android.tools.r8.origin.Origin; |
| import com.android.tools.r8.utils.DescriptorUtils; |
| import com.android.tools.r8.utils.Pair; |
| import com.android.tools.r8.utils.Reporter; |
| import com.android.tools.r8.utils.StringDiagnostic; |
| import com.google.common.collect.ImmutableList; |
| import com.google.common.collect.ImmutableMap; |
| import com.google.common.collect.ImmutableSet; |
| import com.google.common.collect.Sets; |
| import com.google.common.collect.Sets.SetView; |
| import java.util.ArrayList; |
| import java.util.HashMap; |
| import java.util.IdentityHashMap; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Set; |
| import java.util.stream.Collectors; |
| |
| public class LegacyRewritingFlags { |
| |
| private final Map<String, String> rewritePrefix; |
| private final Map<DexType, DexType> emulateLibraryInterface; |
| private final Map<DexString, Map<DexType, DexType>> retargetCoreLibMember; |
| private final Map<DexType, DexType> backportCoreLibraryMember; |
| private final Map<DexType, DexType> customConversions; |
| private final List<Pair<DexType, DexString>> dontRewriteInvocation; |
| private final Set<DexType> dontRetargetLibMember; |
| private final Set<DexType> wrapperConversions; |
| |
| LegacyRewritingFlags( |
| Map<String, String> rewritePrefix, |
| Map<DexType, DexType> emulateLibraryInterface, |
| Map<DexString, Map<DexType, DexType>> retargetCoreLibMember, |
| Map<DexType, DexType> backportCoreLibraryMember, |
| Map<DexType, DexType> customConversions, |
| List<Pair<DexType, DexString>> dontRewriteInvocation, |
| Set<DexType> dontRetargetLibMember, |
| Set<DexType> wrapperConversions) { |
| this.rewritePrefix = rewritePrefix; |
| this.emulateLibraryInterface = emulateLibraryInterface; |
| this.retargetCoreLibMember = retargetCoreLibMember; |
| this.backportCoreLibraryMember = backportCoreLibraryMember; |
| this.customConversions = customConversions; |
| this.dontRewriteInvocation = dontRewriteInvocation; |
| this.dontRetargetLibMember = dontRetargetLibMember; |
| this.wrapperConversions = wrapperConversions; |
| } |
| |
| public static LegacyRewritingFlags empty() { |
| return new LegacyRewritingFlags( |
| ImmutableMap.of(), |
| ImmutableMap.of(), |
| ImmutableMap.of(), |
| ImmutableMap.of(), |
| ImmutableMap.of(), |
| ImmutableList.of(), |
| ImmutableSet.of(), |
| ImmutableSet.of()); |
| } |
| |
| public static Builder builder(DexItemFactory dexItemFactory, Reporter reporter, Origin origin) { |
| return new Builder(dexItemFactory, reporter, origin); |
| } |
| |
| public Builder newBuilder(DexItemFactory dexItemFactory, Reporter reporter, Origin origin) { |
| return new Builder( |
| dexItemFactory, |
| reporter, |
| origin, |
| rewritePrefix, |
| emulateLibraryInterface, |
| retargetCoreLibMember, |
| backportCoreLibraryMember, |
| customConversions, |
| dontRewriteInvocation, |
| dontRetargetLibMember, |
| wrapperConversions); |
| } |
| |
| public Map<String, String> getRewritePrefix() { |
| return rewritePrefix; |
| } |
| |
| public Map<DexType, DexType> getEmulateLibraryInterface() { |
| return emulateLibraryInterface; |
| } |
| |
| public Map<DexString, Map<DexType, DexType>> getRetargetCoreLibMember() { |
| return retargetCoreLibMember; |
| } |
| |
| public Map<DexType, DexType> getBackportCoreLibraryMember() { |
| return backportCoreLibraryMember; |
| } |
| |
| public Map<DexType, DexType> getCustomConversions() { |
| return customConversions; |
| } |
| |
| public List<Pair<DexType, DexString>> getDontRewriteInvocation() { |
| return dontRewriteInvocation; |
| } |
| |
| public Set<DexType> getDontRetargetLibMember() { |
| return dontRetargetLibMember; |
| } |
| |
| public Set<DexType> getWrapperConversions() { |
| return wrapperConversions; |
| } |
| |
| public boolean isEmpty() { |
| return rewritePrefix.isEmpty() |
| && emulateLibraryInterface.isEmpty() |
| && retargetCoreLibMember.isEmpty(); |
| } |
| |
| public static class Builder { |
| |
| private final DexItemFactory factory; |
| private final Reporter reporter; |
| private final Origin origin; |
| |
| private final Map<String, String> rewritePrefix; |
| private final Map<DexType, DexType> emulateLibraryInterface; |
| private final Map<DexString, Map<DexType, DexType>> retargetCoreLibMember; |
| private final Map<DexType, DexType> backportCoreLibraryMember; |
| private final Map<DexType, DexType> customConversions; |
| private final List<Pair<DexType, DexString>> dontRewriteInvocation; |
| private final Set<DexType> dontRetargetLibMember; |
| private final Set<DexType> wrapperConversions; |
| |
| Builder(DexItemFactory factory, Reporter reporter, Origin origin) { |
| this( |
| factory, |
| reporter, |
| origin, |
| new HashMap<>(), |
| new IdentityHashMap<>(), |
| new IdentityHashMap<>(), |
| new IdentityHashMap<>(), |
| new IdentityHashMap<>(), |
| new ArrayList<>(), |
| Sets.newIdentityHashSet(), |
| Sets.newIdentityHashSet()); |
| } |
| |
| Builder( |
| DexItemFactory factory, |
| Reporter reporter, |
| Origin origin, |
| Map<String, String> rewritePrefix, |
| Map<DexType, DexType> emulateLibraryInterface, |
| Map<DexString, Map<DexType, DexType>> retargetCoreLibMember, |
| Map<DexType, DexType> backportCoreLibraryMember, |
| Map<DexType, DexType> customConversions, |
| List<Pair<DexType, DexString>> dontRewriteInvocation, |
| Set<DexType> dontRetargetLibMember, |
| Set<DexType> wrapperConversions) { |
| this.factory = factory; |
| this.reporter = reporter; |
| this.origin = origin; |
| this.rewritePrefix = new HashMap<>(rewritePrefix); |
| this.emulateLibraryInterface = new IdentityHashMap<>(emulateLibraryInterface); |
| this.retargetCoreLibMember = new IdentityHashMap<>(retargetCoreLibMember); |
| this.backportCoreLibraryMember = new IdentityHashMap<>(backportCoreLibraryMember); |
| this.customConversions = new IdentityHashMap<>(customConversions); |
| this.dontRewriteInvocation = new ArrayList<>(dontRewriteInvocation); |
| this.dontRetargetLibMember = Sets.newIdentityHashSet(); |
| this.dontRetargetLibMember.addAll(dontRetargetLibMember); |
| this.wrapperConversions = Sets.newIdentityHashSet(); |
| this.wrapperConversions.addAll(wrapperConversions); |
| } |
| |
| // Utility to set values. Currently assumes the key is fresh. |
| private <K, V> void put(Map<K, V> map, K key, V value, String desc) { |
| if (map.containsKey(key)) { |
| throw reporter.fatalError( |
| new StringDiagnostic( |
| "Invalid desugared library configuration. " |
| + " Duplicate assignment of key: '" |
| + key |
| + "' in sections for '" |
| + desc |
| + "'", |
| origin)); |
| } |
| map.put(key, value); |
| } |
| |
| public Builder putRewritePrefix(String prefix, String rewrittenPrefix) { |
| put( |
| rewritePrefix, |
| prefix, |
| rewrittenPrefix, |
| LegacyDesugaredLibrarySpecificationParser.REWRITE_PREFIX_KEY); |
| return this; |
| } |
| |
| public Builder putEmulateLibraryInterface( |
| String emulateLibraryItf, String rewrittenEmulateLibraryItf) { |
| DexType interfaceType = stringClassToDexType(emulateLibraryItf); |
| DexType rewrittenType = stringClassToDexType(rewrittenEmulateLibraryItf); |
| put( |
| emulateLibraryInterface, |
| interfaceType, |
| rewrittenType, |
| LegacyDesugaredLibrarySpecificationParser.EMULATE_INTERFACE_KEY); |
| return this; |
| } |
| |
| public Builder putCustomConversion(String type, String conversionHolder) { |
| DexType dexType = stringClassToDexType(type); |
| DexType conversionType = stringClassToDexType(conversionHolder); |
| put( |
| customConversions, |
| dexType, |
| conversionType, |
| LegacyDesugaredLibrarySpecificationParser.CUSTOM_CONVERSION_KEY); |
| return this; |
| } |
| |
| public Builder addWrapperConversion(String type) { |
| DexType dexType = stringClassToDexType(type); |
| wrapperConversions.add(dexType); |
| return this; |
| } |
| |
| public Builder putRetargetCoreLibMember(String retarget, String rewrittenRetarget) { |
| int index = sharpIndex(retarget, "retarget core library member"); |
| DexString methodName = factory.createString(retarget.substring(index + 1)); |
| retargetCoreLibMember.putIfAbsent(methodName, new IdentityHashMap<>()); |
| Map<DexType, DexType> typeMap = retargetCoreLibMember.get(methodName); |
| DexType originalType = stringClassToDexType(retarget.substring(0, index)); |
| DexType finalType = stringClassToDexType(rewrittenRetarget); |
| assert !typeMap.containsKey(originalType); |
| put( |
| typeMap, |
| originalType, |
| finalType, |
| LegacyDesugaredLibrarySpecificationParser.RETARGET_LIB_MEMBER_KEY); |
| return this; |
| } |
| |
| public Builder putBackportCoreLibraryMember(String backport, String rewrittenBackport) { |
| DexType backportType = stringClassToDexType(backport); |
| DexType rewrittenBackportType = stringClassToDexType(rewrittenBackport); |
| put( |
| backportCoreLibraryMember, |
| backportType, |
| rewrittenBackportType, |
| LegacyDesugaredLibrarySpecificationParser.BACKPORT_KEY); |
| return this; |
| } |
| |
| public Builder addDontRewriteInvocation(String dontRewriteInvocation) { |
| int index = sharpIndex(dontRewriteInvocation, "don't rewrite"); |
| this.dontRewriteInvocation.add( |
| new Pair<>( |
| stringClassToDexType(dontRewriteInvocation.substring(0, index)), |
| factory.createString(dontRewriteInvocation.substring(index + 1)))); |
| return this; |
| } |
| |
| public Builder addDontRetargetLibMember(String dontRetargetLibMember) { |
| this.dontRetargetLibMember.add(stringClassToDexType(dontRetargetLibMember)); |
| return this; |
| } |
| |
| private int sharpIndex(String typeAndSelector, String descr) { |
| int index = typeAndSelector.lastIndexOf('#'); |
| if (index <= 0 || index >= typeAndSelector.length() - 1) { |
| throw new CompilationError( |
| "Invalid " + descr + " specification (# position) in " + typeAndSelector + "."); |
| } |
| return index; |
| } |
| |
| private DexType stringClassToDexType(String stringClass) { |
| return factory.createType(DescriptorUtils.javaTypeToDescriptor(stringClass)); |
| } |
| |
| public LegacyRewritingFlags build() { |
| validate(); |
| return new LegacyRewritingFlags( |
| ImmutableMap.copyOf(rewritePrefix), |
| ImmutableMap.copyOf(emulateLibraryInterface), |
| ImmutableMap.copyOf(retargetCoreLibMember), |
| ImmutableMap.copyOf(backportCoreLibraryMember), |
| ImmutableMap.copyOf(customConversions), |
| ImmutableList.copyOf(dontRewriteInvocation), |
| ImmutableSet.copyOf(dontRetargetLibMember), |
| ImmutableSet.copyOf(wrapperConversions)); |
| } |
| |
| private void validate() { |
| SetView<DexType> dups = Sets.intersection(customConversions.keySet(), wrapperConversions); |
| if (!dups.isEmpty()) { |
| throw reporter.fatalError( |
| new StringDiagnostic( |
| "Invalid desugared library configuration. " |
| + "Duplicate types in custom conversions and wrapper conversions: " |
| + String.join( |
| ", ", dups.stream().map(DexType::toString).collect(Collectors.toSet())), |
| origin)); |
| } |
| } |
| } |
| } |