| /* |
| * Copyright 2000-2009 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.filters.getters; |
| |
| import com.intellij.codeInsight.completion.CompletionContext; |
| import com.intellij.psi.*; |
| import com.intellij.psi.filters.ContextGetter; |
| import com.intellij.util.IncorrectOperationException; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| /** |
| * Created by IntelliJ IDEA. |
| * User: ik |
| * Date: 05.12.2003 |
| * Time: 14:02:59 |
| * To change this template use Options | File Templates. |
| */ |
| public class ThisGetter implements ContextGetter{ |
| @Override |
| public Object[] get(PsiElement context, CompletionContext completionContext) { |
| return getThisExpressionVariants(context).toArray(); |
| } |
| |
| public static List<PsiExpression> getThisExpressionVariants(PsiElement context) { |
| boolean first = true; |
| final List<PsiExpression> expressions = new ArrayList<PsiExpression>(); |
| final PsiElementFactory factory = JavaPsiFacade.getInstance(context.getProject()).getElementFactory(); |
| |
| PsiElement prev = context; |
| context = context.getContext(); |
| |
| while(context != null){ |
| if(context instanceof PsiClass && !(prev instanceof PsiExpressionList)){ |
| final String expressionText; |
| if(first){ |
| first = false; |
| expressionText = PsiKeyword.THIS; |
| } |
| else expressionText = ((PsiClass)context).getName() + "." + PsiKeyword.THIS; |
| try{ |
| expressions.add(factory.createExpressionFromText(expressionText, context)); |
| } |
| catch(IncorrectOperationException ioe){} |
| } |
| if(context instanceof PsiModifierListOwner){ |
| if(((PsiModifierListOwner)context).hasModifierProperty(PsiModifier.STATIC)) break; |
| } |
| prev = context; |
| context = context.getContext(); |
| } |
| return expressions; |
| } |
| } |