| /* |
| * 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.javascript2.editor.navigation; |
| |
| import java.util.IdentityHashMap; |
| import java.util.logging.Level; |
| import java.util.logging.Logger; |
| import org.netbeans.modules.javascript2.model.api.JsElement; |
| import org.netbeans.modules.javascript2.model.api.JsFunction; |
| import org.netbeans.modules.javascript2.model.api.JsObject; |
| import org.netbeans.modules.javascript2.model.api.JsReference; |
| import org.netbeans.modules.javascript2.model.api.Model; |
| import org.netbeans.modules.javascript2.model.api.ModelUtils; |
| import org.netbeans.modules.javascript2.model.api.Occurrence; |
| |
| /** |
| * |
| * @author Petr Pisl |
| */ |
| public class OccurrencesSupport { |
| |
| private static final Logger LOGGER = Logger.getLogger(OccurrencesSupport.class.getName()); |
| |
| private final Model model; |
| |
| public OccurrencesSupport(Model model) { |
| this.model = model; |
| } |
| |
| public Occurrence getOccurrence(int offset) { |
| Occurrence result; |
| long start = System.currentTimeMillis(); |
| JsObject object = model.getGlobalObject(); |
| IdentityHashMap<JsObject,Void> scannedElements = new IdentityHashMap<>(); |
| result = findOccurrence(object, offset, scannedElements); |
| scannedElements.clear(); |
| if (result == null) { |
| result = findDeclaration(object, offset, scannedElements); |
| } |
| long end = System.currentTimeMillis(); |
| LOGGER.log(Level.FINE, "Computing getOccurences({0}) took {1}ms. Returns {2}", new Object[]{offset, end - start, result}); |
| return result; |
| } |
| |
| private Occurrence findOccurrence(JsObject object, int offset, IdentityHashMap<JsObject,Void> scannedElements) { |
| if(scannedElements.containsKey(object)) { |
| return null; |
| } else { |
| scannedElements.put(object, null); |
| } |
| Occurrence result = null; |
| JsElement.Kind kind = object.getJSKind(); |
| for(Occurrence occurrence: object.getOccurrences()) { |
| if (occurrence.getOffsetRange().containsInclusive(offset)) { |
| return occurrence; |
| } |
| } |
| if (kind.isFunction() || kind == JsElement.Kind.CATCH_BLOCK) { |
| for(JsObject param : ((JsFunction)object).getParameters()) { |
| result = findOccurrence(param, offset, scannedElements); |
| if (result != null) { |
| break; |
| } |
| } |
| if (result != null) { |
| return result; |
| } |
| } |
| if (!(object instanceof JsReference && ModelUtils.isDescendant(object, ((JsReference)object).getOriginal()))) { |
| for(JsObject property: object.getProperties().values()) { |
| if (!(property instanceof JsReference && !((JsReference)property).getOriginal().isAnonymous())) { |
| result = findOccurrence(property, offset, scannedElements); |
| if (result != null) { |
| break; |
| } |
| } else { |
| for(Occurrence occurrence: property.getOccurrences()) { |
| if (occurrence.getOffsetRange().containsInclusive(offset)) { |
| return occurrence; |
| } |
| } |
| } |
| } |
| } |
| return result; |
| } |
| |
| private Occurrence findDeclaration (JsObject object, int offset, IdentityHashMap<JsObject,Void> scannedElements) { |
| if(scannedElements.containsKey(object)) { |
| return null; |
| } else { |
| scannedElements.put(object, null); |
| } |
| Occurrence result = null; |
| JsElement.Kind kind = object.getJSKind(); |
| if (kind != JsElement.Kind.ANONYMOUS_OBJECT && kind != JsElement.Kind.WITH_OBJECT |
| && object.getDeclarationName() != null && object.getDeclarationName().getOffsetRange().containsInclusive(offset) |
| && !ModelUtils.isGlobal(object)) { |
| if (kind.isPropertyGetterSetter()) { |
| // if it's getter or setter in object literal, return it as occurrence of the property |
| String propertyName = object.getName(); |
| propertyName = propertyName.substring(propertyName.lastIndexOf(' ') + 1); |
| JsObject property = object.getParent().getProperty(propertyName); |
| if (property != null) { |
| return new Occurrence(property.getDeclarationName().getOffsetRange(), property); |
| } |
| } |
| |
| result = new Occurrence(object.getDeclarationName().getOffsetRange(), object); |
| } |
| if (result == null && (kind.isFunction() || kind == JsElement.Kind.CATCH_BLOCK)) { |
| for(JsObject param : ((JsFunction)object).getParameters()) { |
| if (param.getDeclarationName().getOffsetRange().containsInclusive(offset)) { |
| result = new Occurrence(param.getDeclarationName().getOffsetRange(), object); |
| return result; |
| } |
| } |
| } |
| if (result == null) { |
| for(JsObject property: object.getProperties().values()) { |
| if (!(property instanceof JsReference)) { |
| result = findDeclaration(property, offset, scannedElements); |
| if (result != null) { |
| break; |
| } |
| } |
| } |
| } |
| return result; |
| } |
| } |