001    /*
002     * Copyright 2010-2013 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.jet.lang.psi.stubs.elements;
018    
019    import com.intellij.lang.*;
020    import com.intellij.openapi.project.Project;
021    import com.intellij.psi.PsiElement;
022    import com.intellij.psi.StubBuilder;
023    import com.intellij.psi.stubs.IndexSink;
024    import com.intellij.psi.stubs.StubElement;
025    import com.intellij.psi.stubs.StubInputStream;
026    import com.intellij.psi.stubs.StubOutputStream;
027    import com.intellij.psi.tree.IStubFileElementType;
028    import com.intellij.util.io.StringRef;
029    import org.jetbrains.annotations.NonNls;
030    import org.jetbrains.annotations.NotNull;
031    import org.jetbrains.jet.lang.parsing.JetParser;
032    import org.jetbrains.jet.lang.psi.stubs.PsiJetFileStub;
033    import org.jetbrains.jet.lang.psi.stubs.impl.PsiJetFileStubImpl;
034    import org.jetbrains.jet.plugin.JetLanguage;
035    
036    import java.io.IOException;
037    
038    public class JetFileElementType extends IStubFileElementType<PsiJetFileStub> {
039        public static final int STUB_VERSION = 23;
040    
041        public JetFileElementType() {
042            super("jet.FILE", JetLanguage.INSTANCE);
043        }
044    
045        protected JetFileElementType(@NonNls String debugName) {
046            super(debugName, JetLanguage.INSTANCE);
047        }
048    
049        @Override
050        public StubBuilder getBuilder() {
051            return new JetFileStubBuilder();
052        }
053    
054        @Override
055        public int getStubVersion() {
056            return STUB_VERSION;
057        }
058    
059        @Override
060        public String getExternalId() {
061            return "jet.FILE";
062        }
063    
064        @Override
065        public void serialize(PsiJetFileStub stub, StubOutputStream dataStream)
066                throws IOException {
067            dataStream.writeName(stub.getPackageName());
068            dataStream.writeBoolean(stub.isScript());
069        }
070    
071        @Override
072        public PsiJetFileStub deserialize(StubInputStream dataStream, StubElement parentStub) throws IOException {
073            StringRef packName = dataStream.readName();
074            boolean isScript = dataStream.readBoolean();
075            return new PsiJetFileStubImpl(null, packName, isScript);
076        }
077    
078        @Override
079        protected ASTNode doParseContents(@NotNull ASTNode chameleon, @NotNull PsiElement psi) {
080            Project project = psi.getProject();
081            Language languageForParser = getLanguageForParser(psi);
082            PsiBuilder builder = PsiBuilderFactory.getInstance().createBuilder(project, chameleon, null, languageForParser, chameleon.getChars());
083            JetParser parser = (JetParser) LanguageParserDefinitions.INSTANCE.forLanguage(languageForParser).createParser(project);
084            return parser.parse(this, builder, psi.getContainingFile()).getFirstChildNode();
085        }
086    
087        @Override
088        public void indexStub(PsiJetFileStub stub, IndexSink sink) {
089            StubIndexServiceFactory.getInstance().indexFile(stub, sink);
090        }
091    }