| /* |
| * Copyright 2003-2007 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.switchtoif; |
| |
| import com.intellij.psi.*; |
| import com.intellij.psi.tree.IElementType; |
| import com.siyeh.ipp.base.PsiElementPredicate; |
| import com.siyeh.ipp.psiutils.ErrorUtil; |
| import org.jetbrains.annotations.NotNull; |
| |
| class SwitchPredicate implements PsiElementPredicate { |
| |
| public boolean satisfiedBy(PsiElement element) { |
| if (!(element instanceof PsiJavaToken)) { |
| return false; |
| } |
| final PsiJavaToken token = (PsiJavaToken)element; |
| final IElementType tokenType = token.getTokenType(); |
| if (!JavaTokenType.SWITCH_KEYWORD.equals(tokenType)) { |
| return false; |
| } |
| final PsiElement parent = element.getParent(); |
| if (!(parent instanceof PsiSwitchStatement)) { |
| return false; |
| } |
| return checkSwitchStatement((PsiSwitchStatement)parent); |
| } |
| |
| public static boolean checkSwitchStatement(@NotNull PsiSwitchStatement switchStatement) { |
| final PsiExpression expression = switchStatement.getExpression(); |
| if (expression == null) { |
| return false; |
| } |
| final PsiCodeBlock body = switchStatement.getBody(); |
| if (body == null) { |
| return false; |
| } |
| if (ErrorUtil.containsError(switchStatement)) { |
| return false; |
| } |
| boolean hasLabel = false; |
| final PsiStatement[] statements = body.getStatements(); |
| for (PsiStatement statement : statements) { |
| if (statement instanceof PsiSwitchLabelStatement) { |
| hasLabel = true; |
| break; |
| } |
| } |
| return hasLabel; |
| } |
| } |