java/java-impl/src/com/intellij/codeInsight/editorActions/smartEnter/WhileConditionFixer.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.*;
  21 import com.intellij.util.IncorrectOperationException;
  22
  23 /**
  24  * Created by IntelliJ IDEA.
  25  * User: max
  26  * Date: Sep 5, 2003
  27  * Time: 5:32:01 PM
  28  * To change this template use Options | File Templates.
  29  */
  30 @SuppressWarnings({"HardCodedStringLiteral"})
  31 public class WhileConditionFixer implements Fixer {
  32   public void apply(Editor editor, JavaSmartEnterProcessor processor, PsiElement psiElement) throws IncorrectOperationException {
  33     if (psiElement instanceof PsiWhileStatement) {
  34       final Document doc = editor.getDocument();
  35       final PsiWhileStatement whileStatement = (PsiWhileStatement) psiElement;
  36       final PsiJavaToken rParenth = whileStatement.getRParenth();
  37       final PsiJavaToken lParenth = whileStatement.getLParenth();
  38       final PsiExpression condition = whileStatement.getCondition();
  39
  40       if (condition == null) {
  41         if (lParenth == null || rParenth == null) {
  42           int stopOffset = doc.getLineEndOffset(doc.getLineNumber(whileStatement.getTextRange().getStartOffset()));
  43           final PsiStatement block = whileStatement.getBody();
  44           if (block != null) {
  45             stopOffset = Math.min(stopOffset, block.getTextRange().getStartOffset());
  46           }
  47           stopOffset = Math.min(stopOffset, whileStatement.getTextRange().getEndOffset());
  48
  49           doc.replaceString(whileStatement.getTextRange().getStartOffset(), stopOffset, "while ()");
  50           processor.registerUnresolvedError(whileStatement.getTextRange().getStartOffset() + "while (".length());
  51         } else {
  52           processor.registerUnresolvedError(lParenth.getTextRange().getEndOffset());
  53         }
  54       } else if (rParenth == null) {
  55         doc.insertString(condition.getTextRange().getEndOffset(), ")");
  56       }
  57     }
  58   }
  59 }