java/java-impl/src/com/intellij/codeInsight/editorActions/smartEnter/MissingWhileBodyFixer.java

   1 /*
   2  * Copyright 2000-2009 JetBrains s.r.o.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16 package com.intellij.codeInsight.editorActions.smartEnter;
  17
  18 import com.intellij.openapi.editor.Document;
  19 import com.intellij.openapi.editor.Editor;
  20 import com.intellij.psi.PsiBlockStatement;
  21 import com.intellij.psi.PsiElement;
  22 import com.intellij.psi.PsiJavaToken;
  23 import com.intellij.psi.PsiWhileStatement;
  24 import com.intellij.util.IncorrectOperationException;
  25
  26 /**
  27  * Created by IntelliJ IDEA.
  28  * User: max
  29  * Date: Sep 5, 2003
  30  * Time: 7:24:03 PM
  31  * To change this template use Options | File Templates.
  32  */
  33 public class MissingWhileBodyFixer implements Fixer {
  34   public void apply(Editor editor, JavaSmartEnterProcessor processor, PsiElement psiElement) throws IncorrectOperationException {
  35     if (!(psiElement instanceof PsiWhileStatement)) return;
  36     PsiWhileStatement whileStatement = (PsiWhileStatement) psiElement;
  37
  38     final Document doc = editor.getDocument();
  39
  40     PsiElement body = whileStatement.getBody();
  41     if (body instanceof PsiBlockStatement) return;
  42     if (body != null && startLine(doc, body) == startLine(doc, whileStatement) && whileStatement.getCondition() != null) return;
  43
  44     final PsiJavaToken rParenth = whileStatement.getRParenth();
  45     assert rParenth != null;
  46
  47     doc.insertString(rParenth.getTextRange().getEndOffset(), "{}");
  48   }
  49
  50   private static int startLine(Document doc, PsiElement psiElement) {
  51     return doc.getLineNumber(psiElement.getTextRange().getStartOffset());
  52   }
  53 }