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.ScopeUtils; 024import com.puppycrawl.tools.checkstyle.api.TokenTypes; 025 026/** 027 * <p> 028 * Check nested (internal) classes/interfaces are declared at the bottom of the 029 * class after all method and field declarations. 030 * </p> 031 * 032 * @author <a href="mailto:ryly@mail.ru">Ruslan Dyachenko</a> 033 */ 034public class InnerTypeLastCheck extends Check 035{ 036 @Override 037 public int[] getDefaultTokens() 038 { 039 return new int[] {TokenTypes.CLASS_DEF, TokenTypes.INTERFACE_DEF}; 040 } 041 042 /** Meet a root class. */ 043 private boolean rootClass = true; 044 045 @Override 046 public void visitToken(DetailAST ast) 047 { 048 /** First root class */ 049 if (rootClass) { 050 rootClass = false; 051 } 052 else { 053 DetailAST nextSibling = ast.getNextSibling(); 054 while (null != nextSibling) { 055 if (!ScopeUtils.inCodeBlock(ast) 056 && (nextSibling.getType() == TokenTypes.VARIABLE_DEF 057 || nextSibling.getType() == TokenTypes.METHOD_DEF)) 058 { 059 log(nextSibling.getLineNo(), nextSibling.getColumnNo(), 060 "arrangement.members.before.inner"); 061 } 062 nextSibling = nextSibling.getNextSibling(); 063 } 064 } 065 } 066 067 @Override 068 public void leaveToken(DetailAST ast) 069 { 070 /** Is this a root class */ 071 if (null == ast.getParent()) { 072 rootClass = true; 073 } 074 } 075}