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 class definitions. 026 * 027 * @author jrichard 028 */ 029public class ClassDefHandler 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 ClassDefHandler(IndentationCheck indentCheck, 040 DetailAST ast, 041 ExpressionHandler parent) 042 { 043 super(indentCheck, 044 (ast.getType() == TokenTypes.CLASS_DEF) 045 ? "class def" : ((ast.getType() == TokenTypes.ENUM_DEF) 046 ? "enum def" : "interface def"), 047 ast, parent); 048 } 049 050 @Override 051 protected DetailAST getLCurly() 052 { 053 return getMainAst().findFirstToken(TokenTypes.OBJBLOCK) 054 .findFirstToken(TokenTypes.LCURLY); 055 } 056 057 @Override 058 protected DetailAST getRCurly() 059 { 060 return getMainAst().findFirstToken(TokenTypes.OBJBLOCK) 061 .findFirstToken(TokenTypes.RCURLY); 062 } 063 064 @Override 065 protected DetailAST getToplevelAST() 066 { 067 return null; 068 // note: ident checked by hand in check indentation; 069 } 070 071 @Override 072 protected DetailAST getListChild() 073 { 074 return getMainAst().findFirstToken(TokenTypes.OBJBLOCK); 075 } 076 077 @Override 078 public void checkIndentation() 079 { 080 final DetailAST modifiers = getMainAst().findFirstToken(TokenTypes.MODIFIERS); 081 if (modifiers.getChildCount() == 0) { 082 final DetailAST ident = getMainAst().findFirstToken(TokenTypes.IDENT); 083 final int lineStart = getLineStart(ident); 084 if (!getLevel().accept(lineStart)) { 085 logError(ident, "ident", lineStart); 086 } 087 088 } 089 else { 090 checkModifiers(); 091 } 092 093 final LineWrappingHandler lineWrap = 094 new LineWrappingHandler(getIndentCheck(), getMainAst()) { 095 @Override 096 public DetailAST findLastNode(DetailAST firstNode) 097 { 098 return firstNode.getLastChild(); 099 } 100 }; 101 lineWrap.checkIndentation(); 102 super.checkIndentation(); 103 } 104 105 @Override 106 protected int[] getCheckedChildren() 107 { 108 return new int[] { 109 TokenTypes.EXPR, 110 TokenTypes.OBJBLOCK, 111 TokenTypes.LITERAL_BREAK, 112 TokenTypes.LITERAL_RETURN, 113 TokenTypes.LITERAL_THROW, 114 TokenTypes.LITERAL_CONTINUE, 115 }; 116 } 117 118}