001//////////////////////////////////////////////////////////////////////////////// 002// checkstyle: Checks Java source code for adherence to a set of rules. 003// Copyright (C) 2001-2014 Oliver Burn 004// 005// This library is free software; you can redistribute it and/or 006// modify it under the terms of the GNU Lesser General Public 007// License as published by the Free Software Foundation; either 008// version 2.1 of the License, or (at your option) any later version. 009// 010// This library is distributed in the hope that it will be useful, 011// but WITHOUT ANY WARRANTY; without even the implied warranty of 012// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 013// Lesser General Public License for more details. 014// 015// You should have received a copy of the GNU Lesser General Public 016// License along with this library; if not, write to the Free Software 017// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 018//////////////////////////////////////////////////////////////////////////////// 019package com.puppycrawl.tools.checkstyle.checks.design; 020 021import com.puppycrawl.tools.checkstyle.api.Check; 022import com.puppycrawl.tools.checkstyle.api.DetailAST; 023import com.puppycrawl.tools.checkstyle.api.TokenTypes; 024 025/** 026 * <p> 027 * Check nested (internal) classes/interfaces are declared at the bottom of the 028 * class after all method and field declarations. 029 * </p> 030 * 031 * @author <a href="mailto:ryly@mail.ru">Ruslan Dyachenko</a> 032 */ 033public class InnerTypeLastCheck extends Check 034{ 035 @Override 036 public int[] getDefaultTokens() 037 { 038 return new int[] {TokenTypes.CLASS_DEF, TokenTypes.INTERFACE_DEF}; 039 } 040 041 /** Meet a root class. */ 042 private boolean mRootClass = true; 043 044 @Override 045 public void visitToken(DetailAST aAST) 046 { 047 /** First root class */ 048 if (mRootClass) { 049 mRootClass = false; 050 } 051 else { 052 DetailAST nextSibling = aAST.getNextSibling(); 053 while (null != nextSibling 054 && ((nextSibling.getType() != TokenTypes.CLASS_DEF) 055 || (nextSibling.getType() != TokenTypes.INTERFACE_DEF))) 056 { 057 if (nextSibling.getType() == TokenTypes.VARIABLE_DEF 058 || nextSibling.getType() == TokenTypes.METHOD_DEF) 059 { 060 log(nextSibling.getLineNo(), nextSibling.getColumnNo(), 061 "arrangement.members.before.inner"); 062 } 063 nextSibling = nextSibling.getNextSibling(); 064 } 065 } 066 } 067 068 @Override 069 public void leaveToken(DetailAST aAST) 070 { 071 /** Is this a root class */ 072 if (null == aAST.getParent()) { 073 mRootClass = true; 074 } 075 } 076}