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 operator new. 026 * @author o_sukhodolsky 027 * @author Ilja Dubinin 028 */ 029public class NewHandler extends ExpressionHandler 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 NewHandler(IndentationCheck indentCheck, 040 DetailAST ast, 041 ExpressionHandler parent) 042 { 043 super(indentCheck, "operator new", ast, parent); 044 } 045 046 @Override 047 public void checkIndentation() 048 { 049 final DetailAST type = getMainAst().getFirstChild(); 050 if (type != null) { 051 checkExpressionSubtree(type, getLevel(), false, false); 052 } 053 054 final DetailAST lparen = getMainAst().findFirstToken(TokenTypes.LPAREN); 055 final DetailAST rparen = getMainAst().findFirstToken(TokenTypes.RPAREN); 056 checkLParen(lparen); 057 058 if ((rparen == null) || (lparen == null) 059 || (rparen.getLineNo() == lparen.getLineNo())) 060 { 061 return; 062 } 063 064 if (getMainAst().getType() != TokenTypes.OBJBLOCK) { 065 return; 066 } 067 068 // if this method name is on the same line as a containing 069 // method, don't indent, this allows expressions like: 070 // method("my str" + method2( 071 // "my str2")); 072 // as well as 073 // method("my str" + 074 // method2( 075 // "my str2")); 076 // 077 078 checkExpressionSubtree( 079 getMainAst().findFirstToken(TokenTypes.ELIST), 080 new IndentLevel(getLevel(), getBasicOffset()), 081 false, true); 082 083 checkRParen(lparen, rparen); 084 } 085 086 @Override 087 protected IndentLevel getLevelImpl() 088 { 089 // if our expression isn't first on the line, just use the start 090 // of the line 091 if (getLineStart(getMainAst()) != getMainAst().getColumnNo()) { 092 return new IndentLevel(getLineStart(getMainAst())); 093 } 094 return super.getLevelImpl(); 095 } 096 097 @Override 098 protected boolean shouldIncreaseIndent() 099 { 100 return false; 101 } 102}