| /* |
| * Copyright 2003-2006 Dave Griffith, Bas Leijdekkers |
| * |
| * 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.siyeh.ipp.trivialif; |
| |
| import com.intellij.psi.*; |
| import com.siyeh.ipp.base.PsiElementPredicate; |
| import com.siyeh.ipp.psiutils.ErrorUtil; |
| import org.jetbrains.annotations.NonNls; |
| |
| class MergeElseIfPredicate implements PsiElementPredicate { |
| |
| public boolean satisfiedBy(PsiElement element) { |
| if (!(element instanceof PsiJavaToken)) { |
| return false; |
| } |
| @NonNls final String text = element.getText(); |
| if (!PsiKeyword.ELSE.equals(text)) { |
| return false; |
| } |
| final PsiJavaToken token = (PsiJavaToken)element; |
| final PsiElement parent = token.getParent(); |
| if (!(parent instanceof PsiIfStatement)) { |
| return false; |
| } |
| final PsiIfStatement ifStatement = (PsiIfStatement)parent; |
| if (ErrorUtil.containsError(ifStatement)) { |
| return false; |
| } |
| final PsiStatement thenBranch = ifStatement.getThenBranch(); |
| final PsiStatement elseBranch = ifStatement.getElseBranch(); |
| if (thenBranch == null) { |
| return false; |
| } |
| if (!(elseBranch instanceof PsiBlockStatement)) { |
| return false; |
| } |
| final PsiCodeBlock block = |
| ((PsiBlockStatement)elseBranch).getCodeBlock(); |
| final PsiStatement[] statements = block.getStatements(); |
| return statements.length == 1 && |
| statements[0] instanceof PsiIfStatement; |
| } |
| } |