| // Copyright (c) 2017, 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.shaking; |
| |
| import com.android.tools.r8.graph.DexClass; |
| import com.android.tools.r8.graph.DexEncodedField; |
| import com.android.tools.r8.graph.DexEncodedMethod; |
| import com.android.tools.r8.graph.DexField; |
| import com.android.tools.r8.graph.DexItem; |
| import com.android.tools.r8.graph.DexMethod; |
| import com.android.tools.r8.graph.DexType; |
| import com.android.tools.r8.shaking.ProguardConfigurationParser.IdentifierPatternWithWildcards; |
| import com.google.common.collect.ImmutableList; |
| import java.util.Arrays; |
| import java.util.List; |
| import java.util.stream.Collectors; |
| |
| public class ProguardConfigurationUtils { |
| public static ProguardKeepRule buildDefaultInitializerKeepRule(DexClass clazz) { |
| ProguardKeepRule.Builder builder = ProguardKeepRule.builder(); |
| builder.setType(ProguardKeepRuleType.KEEP); |
| builder.getModifiersBuilder().setAllowsObfuscation(true); |
| builder.getModifiersBuilder().setAllowsOptimization(true); |
| builder.getClassAccessFlags().setPublic(); |
| builder.setClassType(ProguardClassType.CLASS); |
| ProguardClassNameList.Builder classNameListBuilder = ProguardClassNameList.builder(); |
| classNameListBuilder.addClassName(false, ProguardTypeMatcher.create(clazz.type)); |
| builder.setClassNames(classNameListBuilder.build()); |
| if (clazz.hasDefaultInitializer()) { |
| ProguardMemberRule.Builder memberRuleBuilder = ProguardMemberRule.builder(); |
| memberRuleBuilder.setRuleType(ProguardMemberType.INIT); |
| memberRuleBuilder.setName(IdentifierPatternWithWildcards.withoutWildcards("<init>")); |
| memberRuleBuilder.setArguments(ImmutableList.of()); |
| builder.getMemberRules().add(memberRuleBuilder.build()); |
| } |
| return builder.build(); |
| } |
| |
| public static ProguardKeepRule buildFieldKeepRule(DexClass clazz, DexEncodedField field) { |
| assert clazz.type == field.field.getHolder(); |
| ProguardKeepRule.Builder builder = ProguardKeepRule.builder(); |
| builder.setType(ProguardKeepRuleType.KEEP_CLASS_MEMBERS); |
| builder.getModifiersBuilder().setAllowsObfuscation(true); |
| builder.getModifiersBuilder().setAllowsOptimization(true); |
| builder.getClassAccessFlags().setPublic(); |
| if (clazz.isInterface()) { |
| builder.setClassType(ProguardClassType.INTERFACE); |
| } else { |
| builder.setClassType(ProguardClassType.CLASS); |
| } |
| builder.setClassNames( |
| ProguardClassNameList.singletonList(ProguardTypeMatcher.create(clazz.type))); |
| ProguardMemberRule.Builder memberRuleBuilder = ProguardMemberRule.builder(); |
| memberRuleBuilder.setRuleType(ProguardMemberType.FIELD); |
| memberRuleBuilder.getAccessFlags().setFlags(field.accessFlags); |
| memberRuleBuilder.setName( |
| IdentifierPatternWithWildcards.withoutWildcards(field.field.name.toString())); |
| memberRuleBuilder.setTypeMatcher(ProguardTypeMatcher.create(field.field.type)); |
| builder.getMemberRules().add(memberRuleBuilder.build()); |
| return builder.build(); |
| } |
| |
| public static ProguardKeepRule buildMethodKeepRule(DexClass clazz, DexEncodedMethod method) { |
| assert clazz.type == method.method.getHolder(); |
| ProguardKeepRule.Builder builder = ProguardKeepRule.builder(); |
| builder.setType(ProguardKeepRuleType.KEEP_CLASS_MEMBERS); |
| builder.getModifiersBuilder().setAllowsObfuscation(true); |
| builder.getModifiersBuilder().setAllowsOptimization(true); |
| builder.getClassAccessFlags().setPublic(); |
| if (clazz.isInterface()) { |
| builder.setClassType(ProguardClassType.INTERFACE); |
| } else { |
| builder.setClassType(ProguardClassType.CLASS); |
| } |
| builder.setClassNames( |
| ProguardClassNameList.singletonList(ProguardTypeMatcher.create(clazz.type))); |
| ProguardMemberRule.Builder memberRuleBuilder = ProguardMemberRule.builder(); |
| memberRuleBuilder.setRuleType(ProguardMemberType.METHOD); |
| memberRuleBuilder.getAccessFlags().setFlags(method.accessFlags); |
| memberRuleBuilder.setName( |
| IdentifierPatternWithWildcards.withoutWildcards(method.method.name.toString())); |
| memberRuleBuilder.setTypeMatcher(ProguardTypeMatcher.create(method.method.proto.returnType)); |
| List<ProguardTypeMatcher> arguments = Arrays.stream(method.method.proto.parameters.values) |
| .map(ProguardTypeMatcher::create) |
| .collect(Collectors.toList()); |
| memberRuleBuilder.setArguments(arguments); |
| builder.getMemberRules().add(memberRuleBuilder.build()); |
| return builder.build(); |
| } |
| |
| public static ProguardIdentifierNameStringRule buildIdentifierNameStringRule(DexItem item) { |
| assert item instanceof DexField || item instanceof DexMethod; |
| ProguardIdentifierNameStringRule.Builder builder = ProguardIdentifierNameStringRule.builder(); |
| ProguardMemberRule.Builder memberRuleBuilder = ProguardMemberRule.builder(); |
| DexType holderType; |
| if (item instanceof DexField) { |
| DexField field = (DexField) item; |
| holderType = field.getHolder(); |
| memberRuleBuilder.setRuleType(ProguardMemberType.FIELD); |
| memberRuleBuilder.setName( |
| IdentifierPatternWithWildcards.withoutWildcards(field.name.toString())); |
| memberRuleBuilder.setTypeMatcher(ProguardTypeMatcher.create(field.type)); |
| } else { |
| DexMethod method = (DexMethod) item; |
| holderType = method.getHolder(); |
| memberRuleBuilder.setRuleType(ProguardMemberType.METHOD); |
| memberRuleBuilder.setName( |
| IdentifierPatternWithWildcards.withoutWildcards(method.name.toString())); |
| memberRuleBuilder.setTypeMatcher(ProguardTypeMatcher.create(method.proto.returnType)); |
| List<ProguardTypeMatcher> arguments = Arrays.stream(method.proto.parameters.values) |
| .map(ProguardTypeMatcher::create) |
| .collect(Collectors.toList()); |
| memberRuleBuilder.setArguments(arguments); |
| } |
| if (holderType.isInterface()) { |
| builder.setClassType(ProguardClassType.INTERFACE); |
| } else { |
| builder.setClassType(ProguardClassType.CLASS); |
| } |
| builder.setClassNames( |
| ProguardClassNameList.singletonList(ProguardTypeMatcher.create(holderType))); |
| builder.getMemberRules().add(memberRuleBuilder.build()); |
| return builder.build(); |
| } |
| } |