| // Copyright (c) 2022, 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.positions; |
| |
| import static com.android.tools.r8.naming.mappinginformation.ResidualSignatureMappingInformation.ResidualFieldSignatureMappingInformation.fromDexField; |
| import static com.android.tools.r8.utils.positions.PositionUtils.mustHaveResidualDebugInfo; |
| |
| import com.android.tools.r8.errors.Unreachable; |
| import com.android.tools.r8.graph.AppView; |
| import com.android.tools.r8.graph.Code; |
| import com.android.tools.r8.graph.DexEncodedMethod; |
| import com.android.tools.r8.graph.DexField; |
| import com.android.tools.r8.graph.DexMethod; |
| import com.android.tools.r8.graph.DexProgramClass; |
| import com.android.tools.r8.graph.DexString; |
| import com.android.tools.r8.graph.DexType; |
| import com.android.tools.r8.graph.ProgramMethod; |
| import com.android.tools.r8.ir.code.Position; |
| import com.android.tools.r8.naming.ClassNameMapper; |
| import com.android.tools.r8.naming.ClassNaming; |
| import com.android.tools.r8.naming.ClassNamingForNameMapper.MappedRange; |
| import com.android.tools.r8.naming.MapVersion; |
| import com.android.tools.r8.naming.MemberNaming; |
| import com.android.tools.r8.naming.MemberNaming.FieldSignature; |
| import com.android.tools.r8.naming.MemberNaming.MethodSignature; |
| import com.android.tools.r8.naming.NamingLens; |
| import com.android.tools.r8.naming.PositionRangeAllocator; |
| import com.android.tools.r8.naming.PositionRangeAllocator.CardinalPositionRangeAllocator; |
| import com.android.tools.r8.naming.PositionRangeAllocator.NonCardinalPositionRangeAllocator; |
| import com.android.tools.r8.naming.Range; |
| import com.android.tools.r8.naming.mappinginformation.CompilerSynthesizedMappingInformation; |
| import com.android.tools.r8.naming.mappinginformation.FileNameInformation; |
| import com.android.tools.r8.naming.mappinginformation.MappingInformation; |
| import com.android.tools.r8.naming.mappinginformation.OutlineCallsiteMappingInformation; |
| import com.android.tools.r8.naming.mappinginformation.OutlineMappingInformation; |
| import com.android.tools.r8.naming.mappinginformation.ResidualSignatureMappingInformation; |
| import com.android.tools.r8.naming.mappinginformation.ResidualSignatureMappingInformation.ResidualMethodSignatureMappingInformation; |
| import com.android.tools.r8.naming.mappinginformation.RewriteFrameMappingInformation; |
| import com.android.tools.r8.naming.mappinginformation.RewriteFrameMappingInformation.RemoveInnerFramesAction; |
| import com.android.tools.r8.naming.mappinginformation.RewriteFrameMappingInformation.ThrowsCondition; |
| import com.android.tools.r8.references.MethodReference; |
| import com.android.tools.r8.references.Reference; |
| import com.android.tools.r8.synthesis.SyntheticItems; |
| import com.android.tools.r8.utils.DescriptorUtils; |
| import com.android.tools.r8.utils.InternalOptions.LineNumberOptimization; |
| import com.android.tools.r8.utils.ListUtils; |
| import com.android.tools.r8.utils.OneShotCollectionConsumer; |
| import com.android.tools.r8.utils.OriginalSourceFiles; |
| import com.android.tools.r8.utils.Pair; |
| import it.unimi.dsi.fastutil.ints.Int2IntArrayMap; |
| import it.unimi.dsi.fastutil.ints.Int2IntLinkedOpenHashMap; |
| import it.unimi.dsi.fastutil.ints.Int2IntMap; |
| import it.unimi.dsi.fastutil.ints.Int2IntSortedMap; |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.IdentityHashMap; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Map.Entry; |
| import java.util.Objects; |
| import java.util.function.Function; |
| |
| public class MappedPositionToClassNameMapperBuilder { |
| |
| private static final int MAX_LINE_NUMBER = 65535; |
| |
| private final OriginalSourceFiles originalSourceFiles; |
| private final AppView<?> appView; |
| |
| private final ClassNameMapper.Builder classNameMapperBuilder; |
| private final Map<DexMethod, OutlineFixupBuilder> outlinesToFix = new IdentityHashMap<>(); |
| private final Map<DexType, String> prunedInlinedClasses = new IdentityHashMap<>(); |
| |
| private final CardinalPositionRangeAllocator cardinalRangeCache = |
| PositionRangeAllocator.createCardinalPositionRangeAllocator(); |
| private final NonCardinalPositionRangeAllocator nonCardinalRangeCache = |
| PositionRangeAllocator.createNonCardinalPositionRangeAllocator(); |
| |
| private MappedPositionToClassNameMapperBuilder( |
| AppView<?> appView, OriginalSourceFiles originalSourceFiles) { |
| this.appView = appView; |
| this.originalSourceFiles = originalSourceFiles; |
| classNameMapperBuilder = ClassNameMapper.builder(); |
| classNameMapperBuilder.setCurrentMapVersion( |
| appView.options().getMapFileVersion().toMapVersionMappingInformation()); |
| } |
| |
| public static int getMaxLineNumber() { |
| return MAX_LINE_NUMBER; |
| } |
| |
| public static MappedPositionToClassNameMapperBuilder builder( |
| AppView<?> appView, OriginalSourceFiles originalSourceFiles) { |
| return new MappedPositionToClassNameMapperBuilder(appView, originalSourceFiles); |
| } |
| |
| public ClassNameMapper build() { |
| // Fixup all outline positions |
| outlinesToFix.values().forEach(OutlineFixupBuilder::fixup); |
| addSourceFileLinesForPrunedClasses(); |
| return classNameMapperBuilder.build(); |
| } |
| |
| private void addSourceFileLinesForPrunedClasses() { |
| // Add all pruned inline classes to the mapping to recover source files. |
| List<Entry<DexType, String>> prunedEntries = new ArrayList<>(prunedInlinedClasses.entrySet()); |
| prunedEntries.sort(Entry.comparingByKey()); |
| prunedEntries.forEach( |
| entry -> { |
| DexType holder = entry.getKey(); |
| assert appView.appInfo().definitionForWithoutExistenceAssert(holder) == null; |
| String typeName = holder.toSourceString(); |
| String sourceFile = entry.getValue(); |
| classNameMapperBuilder |
| .classNamingBuilder( |
| typeName, typeName, com.android.tools.r8.position.Position.UNKNOWN) |
| .addMappingInformation(FileNameInformation.build(sourceFile), Unreachable::raise); |
| }); |
| } |
| |
| public MappedPositionToClassNamingBuilder addClassNaming(DexProgramClass clazz) { |
| DexType originalType = appView.graphLens().getOriginalType(clazz.type); |
| DexString renamedDescriptor = appView.getNamingLens().lookupDescriptor(clazz.getType()); |
| return new MappedPositionToClassNamingBuilder( |
| clazz, originalType, DescriptorUtils.descriptorToJavaType(renamedDescriptor.toString())) |
| .addSourceFile(originalSourceFiles) |
| .addSynthetic(appView.getSyntheticItems()) |
| .addFields(); |
| } |
| |
| public class MappedPositionToClassNamingBuilder { |
| |
| private final DexProgramClass clazz; |
| private final DexType originalType; |
| private final String renamedName; |
| |
| private ClassNaming.Builder builder; |
| |
| private MappedPositionToClassNamingBuilder( |
| DexProgramClass clazz, DexType originalType, String renamedName) { |
| this.clazz = clazz; |
| this.originalType = originalType; |
| this.renamedName = renamedName; |
| // If the class is renamed trigger an entry in the builder. |
| if (!originalType.toSourceString().equals(renamedName)) { |
| getBuilder(); |
| } |
| } |
| |
| public MappedPositionToClassNamingBuilder addSourceFile( |
| OriginalSourceFiles originalSourceFiles) { |
| // Check if source file should be added to the map |
| DexString originalSourceFile = originalSourceFiles.getOriginalSourceFile(clazz); |
| if (originalSourceFile != null) { |
| getBuilder() |
| .addMappingInformation( |
| FileNameInformation.build(originalSourceFile.toSourceString()), Unreachable::raise); |
| } |
| return this; |
| } |
| |
| public MappedPositionToClassNamingBuilder addSynthetic(SyntheticItems syntheticItems) { |
| if (syntheticItems.isSyntheticClass(clazz)) { |
| getBuilder() |
| .addMappingInformation( |
| CompilerSynthesizedMappingInformation.getInstance(), Unreachable::raise); |
| } |
| return this; |
| } |
| |
| private MappedPositionToClassNamingBuilder addFields() { |
| MapVersion mapFileVersion = appView.options().getMapFileVersion(); |
| clazz.forEachField( |
| dexEncodedField -> { |
| DexField dexField = dexEncodedField.getReference(); |
| DexField originalField = appView.graphLens().getOriginalFieldSignature(dexField); |
| DexField residualField = |
| appView.getNamingLens().lookupField(dexField, appView.dexItemFactory()); |
| if (residualField.name != originalField.name || originalField.holder != originalType) { |
| FieldSignature originalSignature = |
| FieldSignature.fromDexField(originalField, originalField.holder != originalType); |
| FieldSignature residualSignature = FieldSignature.fromDexField(residualField); |
| MemberNaming memberNaming = new MemberNaming(originalSignature, residualSignature); |
| if (ResidualSignatureMappingInformation.isSupported(mapFileVersion) |
| && !originalSignature.type.equals(residualSignature.type)) { |
| memberNaming.addMappingInformation(fromDexField(residualField), Unreachable::raise); |
| } |
| if (dexEncodedField.isD8R8Synthesized()) { |
| memberNaming.addMappingInformation( |
| CompilerSynthesizedMappingInformation.getInstance(), Unreachable::raise); |
| } |
| getBuilder().addMemberEntry(memberNaming); |
| } |
| }); |
| return this; |
| } |
| |
| public MappedPositionToClassNamingBuilder addMappedPositions( |
| ProgramMethod method, |
| List<MappedPosition> mappedPositions, |
| PositionRemapper positionRemapper, |
| boolean canUseDexPc) { |
| DexEncodedMethod definition = method.getDefinition(); |
| DexMethod originalMethod = |
| appView.graphLens().getOriginalMethodSignatureForMapping(method.getReference()); |
| MethodSignature originalSignature = |
| MethodSignature.fromDexMethod(originalMethod, originalMethod.holder != originalType); |
| |
| OneShotCollectionConsumer<MappingInformation> methodSpecificMappingInformation = |
| OneShotCollectionConsumer.wrap(new ArrayList<>()); |
| // We only do global synthetic classes when using names from the library. For such classes it |
| // is important that we do not filter out stack frames since they could appear from concrete |
| // classes in the library. Additionally, this is one place where it is helpful for developers |
| // to also get reported synthesized frames since stubbing can change control-flow and |
| // exceptions. |
| if (isD8R8Synthesized(method, mappedPositions) |
| && !appView.getSyntheticItems().isGlobalSyntheticClass(method.getHolder())) { |
| methodSpecificMappingInformation.add(CompilerSynthesizedMappingInformation.getInstance()); |
| } |
| |
| DexMethod residualMethod = |
| appView.getNamingLens().lookupMethod(method.getReference(), appView.dexItemFactory()); |
| |
| MapVersion mapFileVersion = appView.options().getMapFileVersion(); |
| if (isIdentityMapping( |
| mapFileVersion, |
| mappedPositions, |
| methodSpecificMappingInformation, |
| residualMethod, |
| originalMethod, |
| originalType)) { |
| assert appView.options().lineNumberOptimization == LineNumberOptimization.OFF |
| || hasAtMostOnePosition(appView, definition) |
| || appView.isCfByteCodePassThrough(definition); |
| return this; |
| } |
| MethodSignature residualSignature = MethodSignature.fromDexMethod(residualMethod); |
| |
| if (ResidualSignatureMappingInformation.isSupported(mapFileVersion) |
| && (!originalSignature.type.equals(residualSignature.type) |
| || !Arrays.equals(originalSignature.parameters, residualSignature.parameters))) { |
| methodSpecificMappingInformation.add( |
| ResidualMethodSignatureMappingInformation.fromDexMethod(residualMethod)); |
| } |
| |
| MemberNaming memberNaming = new MemberNaming(originalSignature, residualSignature); |
| getBuilder().addMemberEntry(memberNaming); |
| |
| // Add simple "a() -> b" mapping if we won't have any other with concrete line numbers |
| if (mappedPositions.isEmpty()) { |
| MappedRange range = |
| getBuilder().addMappedRange(null, originalSignature, null, residualSignature.getName()); |
| methodSpecificMappingInformation.consume( |
| info -> range.addMappingInformation(info, Unreachable::raise)); |
| return this; |
| } |
| |
| Map<DexMethod, MethodSignature> signatures = new IdentityHashMap<>(); |
| signatures.put(originalMethod, originalSignature); |
| Function<DexMethod, MethodSignature> getOriginalMethodSignature = |
| m -> |
| signatures.computeIfAbsent( |
| m, key -> MethodSignature.fromDexMethod(m, m.holder != clazz.getType())); |
| |
| // Check if mapped position is an outline |
| DexMethod outlineMethod = getOutlineMethod(mappedPositions.get(0).getPosition()); |
| if (outlineMethod != null) { |
| outlinesToFix |
| .computeIfAbsent( |
| outlineMethod, |
| outline -> new OutlineFixupBuilder(computeMappedMethod(outline, appView))) |
| .setMappedPositionsOutline(mappedPositions); |
| methodSpecificMappingInformation.add(OutlineMappingInformation.builder().build()); |
| } |
| |
| // Update memberNaming with the collected positions, merging multiple positions into a |
| // single region whenever possible. |
| for (int i = 0; i < mappedPositions.size(); /* updated in body */ ) { |
| MappedPosition firstMappedPosition = mappedPositions.get(i); |
| int j = i + 1; |
| MappedPosition lastMappedPosition = firstMappedPosition; |
| MappedPositionRange mappedPositionRange = MappedPositionRange.SINGLE_LINE; |
| for (; j < mappedPositions.size(); j++) { |
| // Break if this position cannot be merged with lastPosition. |
| MappedPosition currentMappedPosition = mappedPositions.get(j); |
| mappedPositionRange = |
| mappedPositionRange.canAddNextMappingToRange( |
| lastMappedPosition, currentMappedPosition); |
| // Note that currentPosition.caller and lastPosition.class must be deep-compared since |
| // multiple inlining passes lose the canonical property of the positions. |
| Position currentPosition = currentMappedPosition.getPosition(); |
| Position lastPosition = lastMappedPosition.getPosition(); |
| if (currentPosition.getMethod() != lastPosition.getMethod() |
| || mappedPositionRange.isOutOfRange() |
| || !Objects.equals( |
| currentPosition.getCallerPosition(), lastPosition.getCallerPosition()) |
| // Break when we see a mapped outline |
| || currentPosition.getOutlineCallee() != null |
| // Ensure that we break when we start iterating with an outline caller again. |
| || firstMappedPosition.getPosition().getOutlineCallee() != null) { |
| break; |
| } |
| // The mapped positions are not guaranteed to be in order, so maintain first and last |
| // position. |
| if (firstMappedPosition.getObfuscatedLine() > currentMappedPosition.getObfuscatedLine()) { |
| firstMappedPosition = currentMappedPosition; |
| } |
| if (lastMappedPosition.getObfuscatedLine() < currentMappedPosition.getObfuscatedLine()) { |
| lastMappedPosition = currentMappedPosition; |
| } |
| } |
| Range obfuscatedRange = |
| nonCardinalRangeCache.get( |
| firstMappedPosition.getObfuscatedLine(), lastMappedPosition.getObfuscatedLine()); |
| |
| Position firstPosition = firstMappedPosition.getPosition(); |
| Position lastPosition = lastMappedPosition.getPosition(); |
| |
| Range originalRange = |
| nonCardinalRangeCache.get(firstPosition.getLine(), lastPosition.getLine()); |
| |
| MappedRange lastMappedRange = |
| getMappedRangesForPosition( |
| appView, |
| getOriginalMethodSignature, |
| getBuilder(), |
| firstPosition, |
| residualSignature, |
| obfuscatedRange, |
| originalRange, |
| prunedInlinedClasses, |
| cardinalRangeCache); |
| methodSpecificMappingInformation.consume( |
| info -> lastMappedRange.addMappingInformation(info, Unreachable::raise)); |
| // firstPosition will contain a potential outline caller. |
| if (firstPosition.getOutlineCallee() != null) { |
| Int2IntMap positionMap = new Int2IntArrayMap(); |
| int maxPc = ListUtils.last(mappedPositions).getObfuscatedLine(); |
| firstPosition |
| .getOutlinePositions() |
| .forEach( |
| (line, position) -> { |
| int placeHolderLineToBeFixed; |
| if (canUseDexPc) { |
| placeHolderLineToBeFixed = maxPc + line + 1; |
| } else { |
| placeHolderLineToBeFixed = |
| positionRemapper.createRemappedPosition(position).getSecond().getLine(); |
| } |
| positionMap.put((int) line, placeHolderLineToBeFixed); |
| getMappedRangesForPosition( |
| appView, |
| getOriginalMethodSignature, |
| getBuilder(), |
| position, |
| residualSignature, |
| nonCardinalRangeCache.get( |
| placeHolderLineToBeFixed, placeHolderLineToBeFixed), |
| nonCardinalRangeCache.get(position.getLine(), position.getLine()), |
| prunedInlinedClasses, |
| cardinalRangeCache); |
| }); |
| outlinesToFix |
| .computeIfAbsent( |
| firstPosition.getOutlineCallee(), |
| outline -> new OutlineFixupBuilder(computeMappedMethod(outline, appView))) |
| .addMappedRangeForOutlineCallee(lastMappedRange, positionMap); |
| } |
| i = j; |
| } |
| return this; |
| } |
| |
| private boolean isD8R8Synthesized(ProgramMethod method, List<MappedPosition> mappedPositions) { |
| return method.getDefinition().isD8R8Synthesized() |
| || (!mappedPositions.isEmpty() |
| && mappedPositions.get(0).getPosition().isD8R8Synthesized()); |
| } |
| |
| private MethodReference computeMappedMethod(DexMethod current, AppView<?> appView) { |
| NamingLens namingLens = appView.getNamingLens(); |
| DexMethod renamedMethodSignature = |
| namingLens.lookupMethod( |
| appView.graphLens().getRenamedMethodSignature(current), appView.dexItemFactory()); |
| return renamedMethodSignature.asMethodReference(); |
| } |
| |
| private MappedRange getMappedRangesForPosition( |
| AppView<?> appView, |
| Function<DexMethod, MethodSignature> getOriginalMethodSignature, |
| ClassNaming.Builder classNamingBuilder, |
| Position position, |
| MethodSignature residualSignature, |
| Range obfuscatedRange, |
| Range originalLine, |
| Map<DexType, String> prunedInlineHolder, |
| CardinalPositionRangeAllocator cardinalRangeCache) { |
| MappedRange lastMappedRange = null; |
| int inlineFramesCount = -1; |
| do { |
| if (position.isD8R8Synthesized() && position.hasCallerPosition()) { |
| position = position.getCallerPosition(); |
| continue; |
| } |
| inlineFramesCount += 1; |
| DexType holderType = position.getMethod().getHolderType(); |
| String prunedClassSourceFileInfo = appView.getPrunedClassSourceFileInfo(holderType); |
| if (prunedClassSourceFileInfo != null) { |
| String originalValue = prunedInlineHolder.put(holderType, prunedClassSourceFileInfo); |
| assert originalValue == null || originalValue.equals(prunedClassSourceFileInfo); |
| } |
| lastMappedRange = |
| classNamingBuilder.addMappedRange( |
| obfuscatedRange, |
| getOriginalMethodSignature.apply(position.getMethod()), |
| inlineFramesCount == 0 |
| ? originalLine |
| : cardinalRangeCache.get( |
| Math.max(position.getLine(), 0)), // Prevent against "no-position". |
| residualSignature.getName()); |
| if (position.isRemoveInnerFramesIfThrowingNpe()) { |
| lastMappedRange.addMappingInformation( |
| RewriteFrameMappingInformation.builder() |
| .addCondition( |
| ThrowsCondition.create( |
| Reference.classFromDescriptor( |
| appView.dexItemFactory().npeDescriptor.toString()))) |
| .addRewriteAction(RemoveInnerFramesAction.create(inlineFramesCount)) |
| .build(), |
| Unreachable::raise); |
| } |
| position = position.getCallerPosition(); |
| } while (position != null); |
| assert lastMappedRange != null; |
| return lastMappedRange; |
| } |
| |
| private DexMethod getOutlineMethod(Position mappedPosition) { |
| if (mappedPosition.isOutline()) { |
| return mappedPosition.getMethod(); |
| } |
| Position caller = mappedPosition.getCallerPosition(); |
| if (caller == null) { |
| return null; |
| } |
| Position outermostCaller = caller.getOutermostCaller(); |
| return outermostCaller.isOutline() ? outermostCaller.getMethod() : null; |
| } |
| |
| private boolean isIdentityMapping( |
| MapVersion mapFileVersion, |
| List<MappedPosition> mappedPositions, |
| OneShotCollectionConsumer<MappingInformation> methodMappingInfo, |
| DexMethod residualMethod, |
| DexMethod originalMethod, |
| DexType originalType) { |
| if (ResidualSignatureMappingInformation.isSupported(mapFileVersion)) { |
| // Don't emit pure identity mappings. |
| return mappedPositions.isEmpty() |
| && methodMappingInfo.isEmpty() |
| && originalMethod == residualMethod; |
| } else { |
| // Don't emit pure identity mappings. |
| return mappedPositions.isEmpty() |
| && methodMappingInfo.isEmpty() |
| && residualMethod.getName() == originalMethod.name |
| && originalMethod.holder == originalType; |
| } |
| } |
| |
| private boolean hasAtMostOnePosition(AppView<?> appView, DexEncodedMethod definition) { |
| if (!mustHaveResidualDebugInfo(appView.options(), definition)) { |
| return true; |
| } |
| Code code = definition.getCode(); |
| // If the dex code is a single PC code then that also qualifies as having at most one |
| // position. |
| return code.isDexCode() && code.asDexCode().instructions.length == 1; |
| } |
| |
| private ClassNaming.Builder getBuilder() { |
| if (builder == null) { |
| builder = |
| classNameMapperBuilder.classNamingBuilder( |
| renamedName, |
| originalType.toSourceString(), |
| com.android.tools.r8.position.Position.UNKNOWN); |
| } |
| return builder; |
| } |
| } |
| |
| private enum MappedPositionRange { |
| // Single line represent a mapping on the form X:X:<method>:Y:Y. |
| SINGLE_LINE, |
| // Range to single line allows for a range on the left hand side, X:X':<method>:Y:Y |
| RANGE_TO_SINGLE, |
| // Same delta is when we have a range on both sides and the delta (line mapping between them) |
| // is the same: X:X':<method>:Y:Y' and delta(X,X') = delta(Y,Y') |
| SAME_DELTA, |
| // Out of range encodes a mapping range that cannot be encoded. |
| OUT_OF_RANGE; |
| |
| private boolean isSingleLine() { |
| return this == SINGLE_LINE; |
| } |
| |
| private boolean isRangeToSingle() { |
| return this == RANGE_TO_SINGLE; |
| } |
| |
| private boolean isOutOfRange() { |
| return this == OUT_OF_RANGE; |
| } |
| |
| private boolean isSameDelta() { |
| return this == SAME_DELTA; |
| } |
| |
| public MappedPositionRange canAddNextMappingToRange( |
| MappedPosition lastPosition, MappedPosition currentPosition) { |
| if (isOutOfRange()) { |
| return this; |
| } |
| // We allow for ranges being mapped to the same line but not to other ranges: |
| // 1:10:void foo():42:42 -> a |
| // is OK since retrace(a(:7)) = 42, however, the following is not OK: |
| // 1:10:void foo():42:43 -> a |
| // since retrace(a(:7)) = 49, which is not correct. |
| int currentOriginalLine = currentPosition.getPosition().getLine(); |
| int lastOriginalLine = lastPosition.getPosition().getLine(); |
| boolean hasSameRightHandSide = lastOriginalLine == currentOriginalLine; |
| if (hasSameRightHandSide) { |
| if (isSameDelta()) { |
| return OUT_OF_RANGE; |
| } |
| boolean hasSameLeftHandSide = |
| lastPosition.getObfuscatedLine() == currentPosition.getObfuscatedLine(); |
| return (hasSameLeftHandSide && isSingleLine()) ? SINGLE_LINE : RANGE_TO_SINGLE; |
| } |
| if (isRangeToSingle()) { |
| // We cannot recover a delta encoding if we have had range to single encoding. |
| return OUT_OF_RANGE; |
| } |
| boolean sameDelta = |
| currentOriginalLine - lastOriginalLine |
| == currentPosition.getObfuscatedLine() - lastPosition.getObfuscatedLine(); |
| return sameDelta ? SAME_DELTA : OUT_OF_RANGE; |
| } |
| } |
| |
| private static class OutlineFixupBuilder { |
| |
| private static final int MINIFIED_POSITION_REMOVED = -1; |
| |
| private final MethodReference outlineMethod; |
| private List<MappedPosition> mappedOutlinePositions = null; |
| private final List<Pair<MappedRange, Int2IntMap>> mappedOutlineCalleePositions = |
| new ArrayList<>(); |
| |
| private OutlineFixupBuilder(MethodReference outlineMethod) { |
| this.outlineMethod = outlineMethod; |
| } |
| |
| public void setMappedPositionsOutline(List<MappedPosition> mappedPositionsOutline) { |
| this.mappedOutlinePositions = mappedPositionsOutline; |
| } |
| |
| public void addMappedRangeForOutlineCallee( |
| MappedRange mappedRangeForOutline, Int2IntMap calleePositions) { |
| mappedOutlineCalleePositions.add(Pair.create(mappedRangeForOutline, calleePositions)); |
| } |
| |
| public void fixup() { |
| if (mappedOutlinePositions == null || mappedOutlineCalleePositions.isEmpty()) { |
| assert mappedOutlinePositions != null : "Mapped outline positions is null"; |
| assert false : "Mapped outline positions is empty"; |
| return; |
| } |
| for (Pair<MappedRange, Int2IntMap> mappingInfo : mappedOutlineCalleePositions) { |
| MappedRange mappedRange = mappingInfo.getFirst(); |
| Int2IntMap positions = mappingInfo.getSecond(); |
| Int2IntSortedMap map = new Int2IntLinkedOpenHashMap(); |
| positions.forEach( |
| (outlinePosition, calleePosition) -> { |
| int minifiedLinePosition = |
| getMinifiedLinePosition(outlinePosition, mappedOutlinePositions); |
| if (minifiedLinePosition != MINIFIED_POSITION_REMOVED) { |
| map.put(minifiedLinePosition, (int) calleePosition); |
| } |
| }); |
| mappedRange.addMappingInformation( |
| OutlineCallsiteMappingInformation.create(map, outlineMethod), Unreachable::raise); |
| } |
| } |
| |
| private int getMinifiedLinePosition( |
| int originalPosition, List<MappedPosition> mappedPositions) { |
| for (MappedPosition mappedPosition : mappedPositions) { |
| if (mappedPosition.getPosition().getLine() == originalPosition) { |
| return mappedPosition.getObfuscatedLine(); |
| } |
| } |
| return MINIFIED_POSITION_REMOVED; |
| } |
| } |
| } |
