| /* |
| * Copyright 2000-2013 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.jetbrains.python.psi.impl; |
| |
| import com.intellij.psi.PsiElement; |
| import com.intellij.psi.util.PsiTreeUtil; |
| import com.jetbrains.python.psi.PyAssignmentStatement; |
| import com.jetbrains.python.psi.PyExpression; |
| import org.jetbrains.annotations.Nullable; |
| |
| /** |
| * @author oleg |
| */ |
| public class PyAssignmentStatementNavigator { |
| private PyAssignmentStatementNavigator() { |
| } |
| |
| @Nullable |
| public static PyAssignmentStatement getStatementByTarget(final PsiElement element){ |
| final PyAssignmentStatement assignmentStatement = PsiTreeUtil.getParentOfType(element, PyAssignmentStatement.class); |
| if (assignmentStatement != null){ |
| for (PyExpression expression : assignmentStatement.getTargets()) { |
| if (element == expression){ |
| return assignmentStatement; |
| } |
| final PsiElement parent = element.getParent(); |
| if (parent == expression && parent.getFirstChild() == element && parent.getLastChild() == element){ |
| return assignmentStatement; |
| } |
| } |
| } |
| return null; |
| } |
| } |