View Javadoc
1   ////////////////////////////////////////////////////////////////////////////////
2   // checkstyle: Checks Java source code for adherence to a set of rules.
3   // Copyright (C) 2001-2017 the original author or authors.
4   //
5   // This library is free software; you can redistribute it and/or
6   // modify it under the terms of the GNU Lesser General Public
7   // License as published by the Free Software Foundation; either
8   // version 2.1 of the License, or (at your option) any later version.
9   //
10  // This library is distributed in the hope that it will be useful,
11  // but WITHOUT ANY WARRANTY; without even the implied warranty of
12  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13  // Lesser General Public License for more details.
14  //
15  // You should have received a copy of the GNU Lesser General Public
16  // License along with this library; if not, write to the Free Software
17  // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
18  ////////////////////////////////////////////////////////////////////////////////
19  
20  package com.puppycrawl.tools.checkstyle.checks.indentation;
21  
22  import com.puppycrawl.tools.checkstyle.api.DetailAST;
23  import com.puppycrawl.tools.checkstyle.api.TokenTypes;
24  
25  /**
26   * Handler for operator new.
27   * @author o_sukhodolsky
28   * @author Ilja Dubinin
29   */
30  public class NewHandler extends AbstractExpressionHandler {
31      /**
32       * Construct an instance of this handler with the given indentation check,
33       * abstract syntax tree, and parent handler.
34       *
35       * @param indentCheck   the indentation check
36       * @param ast           the abstract syntax tree
37       * @param parent        the parent handler
38       */
39      public NewHandler(IndentationCheck indentCheck,
40                        DetailAST ast,
41                        AbstractExpressionHandler parent) {
42          super(indentCheck, "operator new", ast, parent);
43      }
44  
45      @Override
46      public void checkIndentation() {
47          final DetailAST type = getMainAst().getFirstChild();
48          if (type != null) {
49              checkExpressionSubtree(type, getIndent(), false, false);
50          }
51  
52          final DetailAST lparen = getMainAst().findFirstToken(TokenTypes.LPAREN);
53          checkLeftParen(lparen);
54      }
55  
56      @Override
57      protected IndentLevel getIndentImpl() {
58          final IndentLevel result;
59          // if our expression isn't first on the line, just use the start
60          // of the line
61          if (getLineStart(getMainAst()) == getMainAst().getColumnNo()) {
62              result = super.getIndentImpl();
63          }
64          else {
65              result = new IndentLevel(getLineStart(getMainAst()));
66          }
67          return result;
68      }
69  
70      @Override
71      protected boolean shouldIncreaseIndent() {
72          return false;
73      }
74  }