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.indentation; 020 021import com.puppycrawl.tools.checkstyle.api.DetailAST; 022import com.puppycrawl.tools.checkstyle.api.TokenTypes; 023 024/** 025 * Handler for inner classes. 026 * 027 * @author jrichard 028 */ 029public class ObjectBlockHandler extends BlockParentHandler 030{ 031 /** 032 * Construct an instance of this handler with the given indentation check, 033 * abstract syntax tree, and parent handler. 034 * 035 * @param indentCheck the indentation check 036 * @param ast the abstract syntax tree 037 * @param parent the parent handler 038 */ 039 public ObjectBlockHandler(IndentationCheck indentCheck, 040 DetailAST ast, ExpressionHandler parent) 041 { 042 super(indentCheck, "object def", ast, parent); 043 } 044 045 @Override 046 protected DetailAST getToplevelAST() 047 { 048 return null; 049 } 050 051 @Override 052 protected DetailAST getLCurly() 053 { 054 return getMainAst().findFirstToken(TokenTypes.LCURLY); 055 } 056 057 @Override 058 protected DetailAST getRCurly() 059 { 060 return getMainAst().findFirstToken(TokenTypes.RCURLY); 061 } 062 063 @Override 064 protected DetailAST getListChild() 065 { 066 return getMainAst(); 067 } 068 069 @Override 070 protected IndentLevel getLevelImpl() 071 { 072 final DetailAST parentAST = getMainAst().getParent(); 073 IndentLevel indent = getParent().getLevel(); 074 if (parentAST.getType() == TokenTypes.LITERAL_NEW) { 075 indent.addAcceptedIndent(super.getLevelImpl()); 076 } 077 else if (parentAST.getType() == TokenTypes.ENUM_CONSTANT_DEF) { 078 indent = super.getLevelImpl(); 079 } 080 return indent; 081 } 082 083 @Override 084 public void checkIndentation() 085 { 086 // if we have a class or interface as a parent, don't do anything, 087 // as this is checked by class def; so 088 // only do this if we have a new for a parent (anonymous inner 089 // class) 090 final DetailAST parentAST = getMainAst().getParent(); 091 if (parentAST.getType() != TokenTypes.LITERAL_NEW) { 092 return; 093 } 094 095 super.checkIndentation(); 096 } 097 098 @Override 099 protected boolean rcurlyMustStart() 100 { 101 return false; 102 } 103 104 @Override 105 protected void checkRCurly() 106 { 107 final DetailAST lcurly = getLCurly(); 108 final DetailAST rcurly = getRCurly(); 109 final int rcurlyPos = expandedTabsColumnNo(rcurly); 110 final IndentLevel level = curlyLevel(); 111 level.addAcceptedIndent(level.getFirstIndentLevel() + getLineWrappingIndent()); 112 113 if ((rcurly != null) && !level.accept(rcurlyPos) 114 && (rcurlyMustStart() || startsLine(rcurly)) 115 && !areOnSameLine(rcurly, lcurly)) 116 { 117 logError(rcurly, "rcurly", rcurlyPos, curlyLevel()); 118 } 119 } 120 121 /** 122 * A shortcut for <code>IndentationCheck</code> property. 123 * @return value of lineWrappingIndentation property 124 * of <code>IndentationCheck</code> 125 */ 126 private int getLineWrappingIndent() 127 { 128 return getIndentCheck().getLineWrappingIndentation(); 129 } 130}