org.jetbrains.kotlin.serialization.StringTableImpl Maven / Gradle / Ivy
/*
* Copyright 2010-2015 JetBrains s.r.o.
*
* 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 org.jetbrains.kotlin.serialization;
import kotlin.Pair;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.kotlin.descriptors.ClassDescriptor;
import org.jetbrains.kotlin.descriptors.DeclarationDescriptor;
import org.jetbrains.kotlin.descriptors.PackageFragmentDescriptor;
import org.jetbrains.kotlin.name.FqName;
import org.jetbrains.kotlin.name.Name;
import org.jetbrains.kotlin.types.ErrorUtils;
import org.jetbrains.kotlin.utils.ExceptionUtilsKt;
import org.jetbrains.kotlin.utils.Interner;
import java.io.IOException;
import java.io.OutputStream;
import static org.jetbrains.kotlin.serialization.ProtoBuf.QualifiedNameTable.QualifiedName;
public class StringTableImpl implements StringTable {
private static final class FqNameProto {
public final QualifiedName.Builder fqName;
public FqNameProto(@NotNull QualifiedName.Builder fqName) {
this.fqName = fqName;
}
@Override
public int hashCode() {
int result = 13;
result = 31 * result + fqName.getParentQualifiedName();
result = 31 * result + fqName.getShortName();
result = 31 * result + fqName.getKind().hashCode();
return result;
}
@Override
public boolean equals(Object obj) {
if (obj == null || getClass() != obj.getClass()) return false;
QualifiedName.Builder other = ((FqNameProto) obj).fqName;
return fqName.getParentQualifiedName() == other.getParentQualifiedName()
&& fqName.getShortName() == other.getShortName()
&& fqName.getKind() == other.getKind();
}
}
private final Interner strings = new Interner();
private final Interner qualifiedNames = new Interner();
public int getSimpleNameIndex(@NotNull Name name) {
return getStringIndex(name.asString());
}
@Override
public int getStringIndex(@NotNull String string) {
return strings.intern(string);
}
@Override
public int getFqNameIndex(@NotNull ClassDescriptor descriptor) {
if (ErrorUtils.isError(descriptor)) {
throw new IllegalStateException("Cannot get FQ name of error class: " + descriptor);
}
QualifiedName.Builder builder = QualifiedName.newBuilder();
builder.setKind(QualifiedName.Kind.CLASS);
DeclarationDescriptor containingDeclaration = descriptor.getContainingDeclaration();
if (containingDeclaration instanceof PackageFragmentDescriptor) {
FqName packageFqName = ((PackageFragmentDescriptor) containingDeclaration).getFqName();
if (!packageFqName.isRoot()) {
builder.setParentQualifiedName(getPackageFqNameIndex(packageFqName));
}
}
else if (containingDeclaration instanceof ClassDescriptor) {
ClassDescriptor outerClass = (ClassDescriptor) containingDeclaration;
builder.setParentQualifiedName(getFqNameIndex(outerClass));
}
else {
throw new IllegalStateException("Cannot get FQ name of local class: " + descriptor);
}
builder.setShortName(getStringIndex(descriptor.getName().asString()));
return qualifiedNames.intern(new FqNameProto(builder));
}
public int getPackageFqNameIndex(@NotNull FqName fqName) {
int result = -1;
for (Name segment : fqName.pathSegments()) {
QualifiedName.Builder builder = QualifiedName.newBuilder();
builder.setShortName(getSimpleNameIndex(segment));
if (result != -1) {
builder.setParentQualifiedName(result);
}
result = qualifiedNames.intern(new FqNameProto(builder));
}
return result;
}
@NotNull
public Pair buildProto() {
ProtoBuf.StringTable.Builder strings = ProtoBuf.StringTable.newBuilder();
for (String simpleName : this.strings.getAllInternedObjects()) {
strings.addString(simpleName);
}
ProtoBuf.QualifiedNameTable.Builder qualifiedNames = ProtoBuf.QualifiedNameTable.newBuilder();
for (FqNameProto fqName : this.qualifiedNames.getAllInternedObjects()) {
qualifiedNames.addQualifiedName(fqName.fqName);
}
return new Pair(strings.build(), qualifiedNames.build());
}
@Override
public void serializeTo(@NotNull OutputStream output) {
try {
Pair protos = buildProto();
protos.getFirst().writeDelimitedTo(output);
protos.getSecond().writeDelimitedTo(output);
}
catch (IOException e) {
throw ExceptionUtilsKt.rethrow(e);
}
}
}