| /* |
| * Copyright (C) 2013 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.jack.shrob.seed; |
| |
| import com.android.jack.Options; |
| import com.android.jack.ir.ast.JClass; |
| import com.android.jack.ir.ast.JDefinedClass; |
| import com.android.jack.ir.ast.JDefinedClassOrInterface; |
| import com.android.jack.ir.ast.JField; |
| import com.android.jack.ir.ast.JMethod; |
| import com.android.jack.ir.ast.JNode; |
| import com.android.jack.shrob.obfuscation.OriginalNames; |
| import com.android.jack.shrob.shrink.NodeFinder; |
| import com.android.jack.shrob.spec.ClassSpecification; |
| import com.android.jack.shrob.spec.FieldSpecification; |
| import com.android.jack.shrob.spec.Flags; |
| import com.android.jack.shrob.spec.KeepModifier; |
| import com.android.jack.shrob.spec.MethodSpecification; |
| import com.android.jack.shrob.spec.Specification; |
| import com.android.sched.item.Description; |
| import com.android.sched.schedulable.Constraint; |
| import com.android.sched.schedulable.RunnableSchedulable; |
| import com.android.sched.schedulable.Transform; |
| import com.android.sched.util.config.HasKeyId; |
| import com.android.sched.util.config.ThreadConfig; |
| import com.android.sched.util.config.id.BooleanPropertyId; |
| import com.android.sched.util.log.TracerFactory; |
| |
| import java.util.List; |
| |
| import javax.annotation.Nonnull; |
| |
| /** |
| * A visitor that find seeds. |
| */ |
| @HasKeyId |
| @Description("Visitor that find seeds") |
| @Constraint(need = OriginalNames.class) |
| @Transform(add = SeedMarker.class) |
| public class SeedFinder implements RunnableSchedulable<JDefinedClassOrInterface> { |
| |
| public static final BooleanPropertyId SEARCH_SEEDS_IN_HIERARCHY = BooleanPropertyId.create( |
| "jack.shrob.seed.searchinhierarchy", |
| "Search for shrob seeds in hierarchy").addDefaultValue(Boolean.TRUE); |
| |
| @Nonnull |
| private final Flags flags = ThreadConfig.get(Options.FLAGS); |
| |
| @Nonnull |
| protected final com.android.sched.util.log.Tracer tracer = TracerFactory.getTracer(); |
| |
| @Nonnull |
| private final boolean searchInHierarchy = |
| ThreadConfig.get(SEARCH_SEEDS_IN_HIERARCHY).booleanValue(); |
| |
| private synchronized void markIfNecessary(@Nonnull JNode node, |
| @Nonnull KeepModifier modifier) { |
| SeedMarker marker = node.getMarker(SeedMarker.class); |
| if (marker == null) { |
| node.addMarker(new SeedMarker(modifier)); |
| } else { |
| KeepModifier previousModifier = marker.getModifier(); |
| if (previousModifier != modifier) { |
| marker.setModifier(new KeepModifier()); |
| } |
| } |
| } |
| |
| @Override |
| public void run(@Nonnull JDefinedClassOrInterface type) throws Exception { |
| for (ClassSpecification classSpec : flags.getKeepClassSpecs()) { |
| if (classSpec.matches(type)) { |
| KeepModifier keepModifier = classSpec.getKeepModifier(); |
| List<FieldSpecification> fieldSpecs = classSpec.getFieldSpecs(); |
| List<MethodSpecification> methodSpecs = classSpec.getMethodSpecs(); |
| markIfNecessary(type, keepModifier); |
| matchSpecifications(type.getFields(), fieldSpecs, keepModifier); |
| matchSpecifications(type.getMethods(), methodSpecs, keepModifier); |
| if (searchInHierarchy) { |
| JClass superclass = type.getSuperClass(); |
| while (superclass instanceof JDefinedClass) { |
| JDefinedClass definedSuperclass = (JDefinedClass) superclass; |
| matchSpecifications(definedSuperclass.getFields(), fieldSpecs, keepModifier); |
| matchSpecifications(definedSuperclass.getMethods(), methodSpecs, keepModifier); |
| superclass = definedSuperclass.getSuperClass(); |
| } |
| } |
| } |
| } |
| for (ClassSpecification classSpec : flags.getKeepClassMembersSpecs()) { |
| if (classSpec.matches(type)) { |
| KeepModifier keepModifier = classSpec.getKeepModifier(); |
| List<FieldSpecification> fieldSpecs = classSpec.getFieldSpecs(); |
| List<MethodSpecification> methodSpecs = classSpec.getMethodSpecs(); |
| matchSpecifications(type.getFields(), fieldSpecs, keepModifier); |
| matchSpecifications(type.getMethods(), methodSpecs, keepModifier); |
| if (searchInHierarchy) { |
| JClass superclass = type.getSuperClass(); |
| while (superclass instanceof JDefinedClass) { |
| JDefinedClass definedSuperclass = (JDefinedClass) superclass; |
| matchSpecifications(definedSuperclass.getFields(), fieldSpecs, keepModifier); |
| matchSpecifications(definedSuperclass.getMethods(), methodSpecs, keepModifier); |
| superclass = definedSuperclass.getSuperClass(); |
| } |
| } |
| } |
| } |
| for (ClassSpecification classSpec : flags.getKeepClassesWithMembersSpecs()) { |
| if (classSpec.matches(type)) { |
| NodeFinder<JField> fieldFinder = new NodeFinder<JField>(type.getFields()); |
| fieldFinder.find(classSpec.getFieldSpecs()); |
| |
| NodeFinder<JMethod> methodFinder = new NodeFinder<JMethod>(type.getMethods()); |
| methodFinder.find(classSpec.getMethodSpecs()); |
| |
| if (fieldFinder.allSpecificationsMatched() && methodFinder.allSpecificationsMatched()) { |
| markIfNecessary(type, classSpec.getKeepModifier()); |
| KeepModifier keepModifier = classSpec.getKeepModifier(); |
| List<FieldSpecification> fieldSpecs = classSpec.getFieldSpecs(); |
| List<MethodSpecification> methodSpecs = classSpec.getMethodSpecs(); |
| matchSpecifications(type.getFields(), fieldSpecs, keepModifier); |
| matchSpecifications(type.getMethods(), methodSpecs, keepModifier); |
| } |
| } |
| } |
| } |
| |
| |
| private <T extends JNode> void matchSpecifications(@Nonnull List<T> nodes, |
| @Nonnull List<? extends Specification<T>> specs, KeepModifier keepModifier) { |
| for (T node : nodes) { |
| for (Specification<T> spec : specs) { |
| if (spec.matches(node)) { |
| markIfNecessary(node, keepModifier); |
| break; |
| } |
| } |
| } |
| } |
| |
| } |