lkishalmi commented on code in PR #4549: URL: https://github.com/apache/netbeans/pull/4549#discussion_r969120655
########## java/languages.antlr/src/org/netbeans/modules/languages/antlr/AntlrIndexer.java: ########## @@ -0,0 +1,238 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you 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.netbeans.modules.languages.antlr; + +import java.io.IOException; +import java.net.URL; +import java.util.ArrayList; +import java.util.Collection; +import java.util.Collections; +import java.util.HashSet; +import java.util.LinkedList; +import java.util.List; +import java.util.Locale; +import java.util.Map; +import java.util.Set; +import java.util.logging.Level; +import java.util.logging.Logger; +import org.netbeans.api.editor.mimelookup.MimeRegistration; +import org.netbeans.api.editor.mimelookup.MimeRegistrations; +import org.netbeans.modules.languages.antlr.v3.Antlr3Language; +import org.netbeans.modules.languages.antlr.v4.Antlr4Language; +import org.netbeans.modules.languages.antlr.v4.Antlr4ParserResult; +import org.netbeans.modules.parsing.api.Snapshot; +import org.netbeans.modules.parsing.spi.Parser; +import org.netbeans.modules.parsing.spi.indexing.Context; +import org.netbeans.modules.parsing.spi.indexing.EmbeddingIndexer; +import org.netbeans.modules.parsing.spi.indexing.EmbeddingIndexerFactory; +import org.netbeans.modules.parsing.spi.indexing.Indexable; +import org.netbeans.modules.parsing.spi.indexing.support.IndexDocument; +import org.netbeans.modules.parsing.spi.indexing.support.IndexingSupport; +import org.netbeans.modules.parsing.spi.indexing.support.QuerySupport; +import org.openide.filesystems.FileObject; +import org.openide.util.Exceptions; + +public class AntlrIndexer extends EmbeddingIndexer { + + // Used to split + public static final String SEPARATOR = "\\"; + public static final String FIELD_IMPORT = "import"; + public static final String FIELD_DECLARATION = "declaration"; + public static final String FIELD_CASE_INSENSITIVE_DECLARATION = "ci-declaration"; + public static final String FIELD_OCCURRENCE = "occurrence"; + public static final String FIELD_CASE_INSENSITIVE_OCCURRENCE = "ci-occurrence"; + + private static final Logger LOG = Logger.getLogger(AntlrIndexer.class.getName()); + + @Override + protected void index(Indexable indexable, Parser.Result parserResult, Context context) { + IndexingSupport support; + try { + support = IndexingSupport.getInstance(context); + } catch (IOException ex) { + LOG.log(Level.WARNING, null, ex); + return; + } + + IndexDocument id = support.createDocument(indexable); + + if (parserResult instanceof AntlrParserResult) { + Map<String, AntlrParserResult.Reference> refs = ((AntlrParserResult) parserResult).references; + refs.values().stream().forEach(r -> { + String declarationValue = r.name + SEPARATOR + r.defOffset.getStart() + SEPARATOR + r.defOffset.getEnd(); + id.addPair(FIELD_DECLARATION, declarationValue, true, true); + id.addPair(FIELD_CASE_INSENSITIVE_DECLARATION, ci(declarationValue), true, true); + if(r.occurances != null) { + r.occurances.stream().forEach(c2 -> { + String occurrenceValue = r.name + SEPARATOR + c2.getStart() + SEPARATOR + c2.getEnd(); + id.addPair(FIELD_OCCURRENCE, occurrenceValue, true, true); + id.addPair(FIELD_CASE_INSENSITIVE_OCCURRENCE, ci(declarationValue), true, true); + }); + } + }); + } + + if (parserResult instanceof Antlr4ParserResult) { + ((Antlr4ParserResult) parserResult).getImports() + .forEach(s -> { + id.addPair(FIELD_IMPORT, s, true, true); + }); + } + + support.addDocument(id); + } + + public static final class Factory extends EmbeddingIndexerFactory { + + public static final String NAME = "antlr"; // NOI18N + public static final int VERSION = 4; + private static final int PRIORITY = 100; + private final String mimeType; + + public Factory(String mimeType) { + this.mimeType = mimeType; + } + + @Override + public EmbeddingIndexer createIndexer(final Indexable indexable, final Snapshot snapshot) { + if (isIndexable(indexable, snapshot)) { + return new AntlrIndexer(); + } else { + return null; + } + } + + @Override + public String getIndexerName() { + return NAME; + } + + @Override + public int getIndexVersion() { + return VERSION; + } + + private boolean isIndexable(Indexable indexable, Snapshot snapshot) { + return mimeType.equals(snapshot.getMimeType()); + } + + @Override + public void filesDeleted(Iterable<? extends Indexable> deleted, Context context) { + try { + IndexingSupport is = IndexingSupport.getInstance(context); + for (Indexable i : deleted) { + is.removeDocuments(i); + } + } catch (IOException ioe) { + LOG.log(Level.WARNING, null, ioe); + } + } + + @Override + public void rootsRemoved(final Iterable<? extends URL> removedRoots) { + } + + @Override + public void filesDirty(Iterable<? extends Indexable> dirty, Context context) { + try { + IndexingSupport is = IndexingSupport.getInstance(context); + for (Indexable i : dirty) { + is.markDirtyDocuments(i); + } + } catch (IOException ioe) { + LOG.log(Level.WARNING, null, ioe); + } + } + + @Override + public int getPriority() { + return PRIORITY; + } + } + + + /** + * Find all imports of the specified file (including transitive ones). + * + * @param qs + * @param sourceFile + * @return + */ + public static List<FileObject> transitiveImports(QuerySupport qs, FileObject sourceFile) { + List<FileObject> result = new ArrayList<>(); + LinkedList<FileObject> toScan = new LinkedList<>(); + Set<String> seen = new HashSet<>(); + result.add(sourceFile); + toScan.add(sourceFile); + seen.add(sourceFile.getName()); + while(! toScan.isEmpty()) { + FileObject target = toScan.poll(); + try { + qs.getQueryFactory() + .file(target) + .execute(AntlrIndexer.FIELD_IMPORT) + .forEach(c -> { + for(String value: c.getValues(AntlrIndexer.FIELD_IMPORT)) { + if(seen.add(value)) { Review Comment: Here I've fixed the "recursion" detection. The seen set was not really in use for that. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected] For further information about the NetBeans mailing lists, visit: https://cwiki.apache.org/confluence/display/NETBEANS/Mailing+lists
