001 /*
002 * Copyright 2010-2015 JetBrains s.r.o.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 * http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016
017 package org.jetbrains.kotlin.load.kotlin;
018
019 import kotlin.jvm.functions.Function0;
020 import org.jetbrains.annotations.NotNull;
021 import org.jetbrains.annotations.Nullable;
022 import org.jetbrains.kotlin.descriptors.ClassDescriptor;
023 import org.jetbrains.kotlin.descriptors.PackageFragmentDescriptor;
024 import org.jetbrains.kotlin.load.kotlin.header.KotlinClassHeader;
025 import org.jetbrains.kotlin.name.Name;
026 import org.jetbrains.kotlin.resolve.scopes.ChainedScope;
027 import org.jetbrains.kotlin.resolve.scopes.MemberScope;
028 import org.jetbrains.kotlin.serialization.ClassData;
029 import org.jetbrains.kotlin.serialization.ClassDataWithSource;
030 import org.jetbrains.kotlin.serialization.PackageData;
031 import org.jetbrains.kotlin.serialization.deserialization.DeserializationComponents;
032 import org.jetbrains.kotlin.serialization.deserialization.ErrorReporter;
033 import org.jetbrains.kotlin.serialization.deserialization.descriptors.DeserializedPackageMemberScope;
034 import org.jetbrains.kotlin.serialization.jvm.JvmProtoBufUtil;
035
036 import javax.inject.Inject;
037 import java.util.*;
038
039 import static kotlin.SetsKt.setOf;
040 import static org.jetbrains.kotlin.load.kotlin.header.KotlinClassHeader.Kind.*;
041
042 public final class DeserializedDescriptorResolver {
043 private final ErrorReporter errorReporter;
044 private DeserializationComponents components;
045
046 public static final Set<KotlinClassHeader.Kind> KOTLIN_CLASS = setOf(CLASS);
047 public static final Set<KotlinClassHeader.Kind> KOTLIN_FILE_FACADE_OR_MULTIFILE_CLASS_PART = setOf(FILE_FACADE, MULTIFILE_CLASS_PART);
048
049 public DeserializedDescriptorResolver(@NotNull ErrorReporter errorReporter) {
050 this.errorReporter = errorReporter;
051 }
052
053 // component dependency cycle
054 @Inject
055 public void setComponents(@NotNull DeserializationComponentsForJava context) {
056 this.components = context.getComponents();
057 }
058
059 @Nullable
060 public ClassDescriptor resolveClass(@NotNull KotlinJvmBinaryClass kotlinClass) {
061 String[] data = readData(kotlinClass, KOTLIN_CLASS);
062 if (data != null) {
063 String[] strings = kotlinClass.getClassHeader().getStrings();
064 assert strings != null : "String table not found in " + kotlinClass;
065 ClassData classData = JvmProtoBufUtil.readClassDataFrom(data, strings);
066 KotlinJvmBinarySourceElement sourceElement = new KotlinJvmBinarySourceElement(kotlinClass);
067 return components.getClassDeserializer().deserializeClass(
068 kotlinClass.getClassId(),
069 new ClassDataWithSource(classData, sourceElement)
070 );
071 }
072 return null;
073 }
074
075 @Nullable
076 public MemberScope createKotlinPackagePartScope(@NotNull PackageFragmentDescriptor descriptor, @NotNull KotlinJvmBinaryClass kotlinClass) {
077 String[] data = readData(kotlinClass, KOTLIN_FILE_FACADE_OR_MULTIFILE_CLASS_PART);
078 if (data != null) {
079 String[] strings = kotlinClass.getClassHeader().getStrings();
080 assert strings != null : "String table not found in " + kotlinClass;
081 PackageData packageData = JvmProtoBufUtil.readPackageDataFrom(data, strings);
082 return new DeserializedPackageMemberScope(
083 descriptor, packageData.getPackageProto(), packageData.getNameResolver(), components,
084 new Function0<Collection<Name>>() {
085 @Override
086 public Collection<Name> invoke() {
087 // All classes are included into Java scope
088 return Collections.emptyList();
089 }
090 }
091 );
092 }
093 return null;
094 }
095
096 @NotNull
097 public MemberScope createKotlinPackageScope(
098 @NotNull PackageFragmentDescriptor descriptor,
099 @NotNull List<KotlinJvmBinaryClass> packageParts
100 ) {
101 List<MemberScope> list = new ArrayList<MemberScope>(packageParts.size());
102 for (KotlinJvmBinaryClass callable : packageParts) {
103 MemberScope scope = createKotlinPackagePartScope(descriptor, callable);
104 if (scope != null) {
105 list.add(scope);
106 }
107 }
108 if (list.isEmpty()) {
109 return MemberScope.Empty.INSTANCE;
110 }
111 return new ChainedScope("Member scope for union of package parts data", list.toArray(new MemberScope[list.size()]));
112 }
113
114 @Nullable
115 public String[] readData(@NotNull KotlinJvmBinaryClass kotlinClass, @NotNull Set<KotlinClassHeader.Kind> expectedKinds) {
116 KotlinClassHeader header = kotlinClass.getClassHeader();
117 if (!header.isCompatibleAbiVersion()) {
118 errorReporter.reportIncompatibleAbiVersion(kotlinClass.getClassId(), kotlinClass.getLocation(), header.getVersion());
119 }
120 else if (expectedKinds.contains(header.getKind())) {
121 return header.getAnnotationData();
122 }
123
124 return null;
125 }
126 }