| // Copyright (c) 2019, 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.retrace; |
| |
| import com.android.tools.r8.Keep; |
| import com.android.tools.r8.naming.ClassNamingForNameMapper.MappedRange; |
| import com.android.tools.r8.naming.ClassNamingForNameMapper.MappedRangesOfName; |
| import com.android.tools.r8.references.MethodReference; |
| import com.android.tools.r8.utils.Pair; |
| import com.google.common.collect.ImmutableList; |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.function.BiConsumer; |
| import java.util.function.Consumer; |
| import java.util.stream.Stream; |
| |
| @Keep |
| public class RetraceMethodResult extends Result<RetraceMethodResult.Element, RetraceMethodResult> { |
| |
| private final MethodDefinition methodDefinition; |
| private final RetraceClassResult classResult; |
| private final List<Pair<RetraceClassResult.Element, List<MappedRange>>> mappedRanges; |
| private final RetraceApi retracer; |
| |
| RetraceMethodResult( |
| RetraceClassResult classResult, |
| List<Pair<RetraceClassResult.Element, List<MappedRange>>> mappedRanges, |
| MethodDefinition methodDefinition, |
| RetraceApi retracer) { |
| this.classResult = classResult; |
| this.mappedRanges = mappedRanges; |
| this.methodDefinition = methodDefinition; |
| this.retracer = retracer; |
| assert classResult != null; |
| assert !mappedRanges.isEmpty(); |
| } |
| |
| @Override |
| public boolean isAmbiguous() { |
| if (mappedRanges.size() > 1) { |
| return true; |
| } |
| List<MappedRange> methodRanges = mappedRanges.get(0).getSecond(); |
| if (methodRanges == null || methodRanges.isEmpty()) { |
| return false; |
| } |
| MappedRange lastRange = methodRanges.get(0); |
| for (MappedRange mappedRange : methodRanges) { |
| if (mappedRange != lastRange |
| && (mappedRange.minifiedRange == null |
| || !mappedRange.minifiedRange.equals(lastRange.minifiedRange))) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| public RetraceFrameResult narrowByPosition(int position) { |
| List<Pair<RetraceClassResult.Element, List<MappedRange>>> narrowedRanges = new ArrayList<>(); |
| List<Pair<RetraceClassResult.Element, List<MappedRange>>> noMappingRanges = new ArrayList<>(); |
| for (Pair<RetraceClassResult.Element, List<MappedRange>> mappedRange : mappedRanges) { |
| if (mappedRange.getSecond() == null) { |
| noMappingRanges.add(new Pair<>(mappedRange.getFirst(), null)); |
| continue; |
| } |
| List<MappedRange> ranges = |
| new MappedRangesOfName(mappedRange.getSecond()).allRangesForLine(position, false); |
| boolean hasAddedRanges = false; |
| if (!ranges.isEmpty()) { |
| narrowedRanges.add(new Pair<>(mappedRange.getFirst(), ranges)); |
| hasAddedRanges = true; |
| } else { |
| narrowedRanges = new ArrayList<>(); |
| for (MappedRange mapped : mappedRange.getSecond()) { |
| if (mapped.minifiedRange == null) { |
| narrowedRanges.add(new Pair<>(mappedRange.getFirst(), ImmutableList.of(mapped))); |
| hasAddedRanges = true; |
| } |
| } |
| } |
| if (!hasAddedRanges) { |
| narrowedRanges.add(new Pair<>(mappedRange.getFirst(), null)); |
| } |
| } |
| return new RetraceFrameResult( |
| classResult, |
| narrowedRanges.isEmpty() ? noMappingRanges : narrowedRanges, |
| methodDefinition, |
| position, |
| retracer); |
| } |
| |
| @Override |
| public Stream<Element> stream() { |
| return mappedRanges.stream() |
| .flatMap( |
| mappedRangePair -> { |
| RetraceClassResult.Element classElement = mappedRangePair.getFirst(); |
| List<MappedRange> mappedRanges = mappedRangePair.getSecond(); |
| if (mappedRanges == null || mappedRanges.isEmpty()) { |
| return Stream.of( |
| new Element( |
| this, |
| classElement, |
| RetracedMethod.create( |
| methodDefinition.substituteHolder( |
| classElement.getRetracedClass().getClassReference())))); |
| } |
| return mappedRanges.stream() |
| .map( |
| mappedRange -> { |
| MethodReference methodReference = |
| RetraceUtils.methodReferenceFromMappedRange( |
| mappedRange, classElement.getRetracedClass().getClassReference()); |
| return new Element( |
| this, classElement, RetracedMethod.create(methodReference)); |
| }); |
| }); |
| } |
| |
| @Override |
| public RetraceMethodResult forEach(Consumer<Element> resultConsumer) { |
| stream().forEach(resultConsumer); |
| return this; |
| } |
| |
| public static class Element implements RetraceClassMemberElement<RetracedMethod> { |
| |
| private final RetracedMethod methodReference; |
| private final RetraceMethodResult retraceMethodResult; |
| private final RetraceClassResult.Element classElement; |
| |
| private Element( |
| RetraceMethodResult retraceMethodResult, |
| RetraceClassResult.Element classElement, |
| RetracedMethod methodReference) { |
| this.classElement = classElement; |
| this.retraceMethodResult = retraceMethodResult; |
| this.methodReference = methodReference; |
| } |
| |
| @Override |
| public boolean isUnknown() { |
| return methodReference.isUnknown(); |
| } |
| |
| @Override |
| public RetracedMethod getMember() { |
| return methodReference; |
| } |
| |
| public RetraceMethodResult getRetraceMethodResult() { |
| return retraceMethodResult; |
| } |
| |
| @Override |
| public RetraceClassResult.Element getClassElement() { |
| return classElement; |
| } |
| |
| @Override |
| public void visitFrames(BiConsumer<RetracedMethod, Integer> consumer) { |
| consumer.accept(methodReference, 0); |
| } |
| |
| @Override |
| public RetraceSourceFileResult retraceSourceFile(RetracedClassMember frame, String sourceFile) { |
| return RetraceUtils.getSourceFile( |
| classElement, methodReference.getHolderClass(), sourceFile, retraceMethodResult.retracer); |
| } |
| } |
| } |