| /* |
| * Copyright 2000-2012 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 com.intellij.psi.stubs; |
| |
| import com.intellij.lang.Language; |
| import com.intellij.lang.LanguageParserDefinitions; |
| import com.intellij.lang.ParserDefinition; |
| import com.intellij.openapi.fileTypes.FileType; |
| import com.intellij.openapi.fileTypes.LanguageFileType; |
| import com.intellij.openapi.project.Project; |
| import com.intellij.openapi.vfs.VirtualFile; |
| import com.intellij.psi.PsiFile; |
| import com.intellij.psi.tree.IFileElementType; |
| import com.intellij.psi.tree.IStubFileElementType; |
| import com.intellij.util.indexing.FileContent; |
| import com.intellij.util.indexing.FileContentImpl; |
| import com.intellij.util.indexing.IndexingDataKeys; |
| import org.jetbrains.annotations.Nullable; |
| |
| import java.io.IOException; |
| |
| /** |
| * @author yole |
| */ |
| public class CoreStubTreeLoader extends StubTreeLoader { |
| @Override |
| public ObjectStubTree readOrBuild(Project project, VirtualFile vFile, @Nullable PsiFile psiFile) { |
| if (!canHaveStub(vFile)) { |
| return null; |
| } |
| |
| try { |
| final FileContent fc = new FileContentImpl(vFile, vFile.contentsToByteArray()); |
| fc.putUserData(IndexingDataKeys.PROJECT, project); |
| final Stub element = StubTreeBuilder.buildStubTree(fc); |
| if (element instanceof PsiFileStub) { |
| return new StubTree((PsiFileStub)element); |
| } |
| } |
| catch (IOException e) { |
| throw new RuntimeException(e); |
| } |
| |
| return null; |
| } |
| |
| @Override |
| public ObjectStubTree readFromVFile(Project project, VirtualFile vFile) { |
| return null; |
| } |
| |
| @Override |
| public void rebuildStubTree(VirtualFile virtualFile) { |
| } |
| |
| @Override |
| public long getStubTreeTimestamp(VirtualFile vFile) { |
| return 0; |
| } |
| |
| @Override |
| public boolean canHaveStub(VirtualFile file) { |
| final FileType fileType = file.getFileType(); |
| if (fileType instanceof LanguageFileType) { |
| Language l = ((LanguageFileType)fileType).getLanguage(); |
| ParserDefinition parserDefinition = LanguageParserDefinitions.INSTANCE.forLanguage(l); |
| if (parserDefinition == null) return false; |
| final IFileElementType elementType = parserDefinition.getFileNodeType(); |
| return elementType instanceof IStubFileElementType && ((IStubFileElementType)elementType).shouldBuildStubFor(file); |
| } |
| else if (fileType.isBinary()) { |
| final BinaryFileStubBuilder builder = BinaryFileStubBuilders.INSTANCE.forFileType(fileType); |
| return builder != null && builder.acceptsFile(file); |
| } |
| return false; |
| } |
| } |