| /* |
| * 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.apache.uima.ruta.ide.core.codeassist; |
| |
| import org.apache.uima.ruta.ide.parser.ast.RutaDeclarationsStatement; |
| import org.apache.uima.ruta.ide.parser.ast.RutaVariableReference; |
| import org.eclipse.dltk.ast.ASTNode; |
| import org.eclipse.dltk.ast.ASTVisitor; |
| import org.eclipse.dltk.ast.declarations.FieldDeclaration; |
| import org.eclipse.dltk.ast.expressions.Expression; |
| import org.eclipse.dltk.ast.statements.Statement; |
| |
| public class RutaReferenceDeclarationVisitor extends ASTVisitor { |
| private ASTNode result = null; |
| |
| private int start = 0; |
| |
| public RutaReferenceDeclarationVisitor(int start) { |
| this.start = start; |
| } |
| |
| @Override |
| public boolean visitGeneral(ASTNode node) throws Exception { |
| if (node.sourceStart() <= start && start <= node.sourceEnd()) { |
| return true; |
| } |
| return false; |
| } |
| |
| @Override |
| public boolean visit(Statement s) throws Exception { |
| if (s instanceof RutaDeclarationsStatement || s instanceof FieldDeclaration) { |
| return true && super.visit(s); |
| } |
| return false; |
| } |
| |
| @Override |
| public boolean visit(Expression s) throws Exception { |
| if (s instanceof RutaVariableReference) { |
| result = s; |
| } |
| return super.visit(s); |
| } |
| |
| public ASTNode getResult() { |
| return result; |
| } |
| } |