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1   ////////////////////////////////////////////////////////////////////////////////
2   // checkstyle: Checks Java source code for adherence to a set of rules.
3   // Copyright (C) 2001-2018 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      /**
33       * Construct an instance of this handler with the given indentation check,
34       * abstract syntax tree, and parent handler.
35       *
36       * @param indentCheck   the indentation check
37       * @param ast           the abstract syntax tree
38       * @param parent        the parent handler
39       */
40      public NewHandler(IndentationCheck indentCheck,
41                        DetailAST ast,
42                        AbstractExpressionHandler parent) {
43          super(indentCheck, "operator new", ast, parent);
44      }
45  
46      @Override
47      public void checkIndentation() {
48          final DetailAST type = getMainAst().getFirstChild();
49          if (type != null) {
50              checkExpressionSubtree(type, getIndent(), false, false);
51          }
52  
53          final DetailAST lparen = getMainAst().findFirstToken(TokenTypes.LPAREN);
54          checkLeftParen(lparen);
55      }
56  
57      @Override
58      protected IndentLevel getIndentImpl() {
59          final IndentLevel result;
60          // if our expression isn't first on the line, just use the start
61          // of the line
62          if (getLineStart(getMainAst()) == getMainAst().getColumnNo()) {
63              result = super.getIndentImpl();
64          }
65          else {
66              result = new IndentLevel(getLineStart(getMainAst()));
67          }
68          return result;
69      }
70  
71      @Override
72      protected boolean shouldIncreaseIndent() {
73          return false;
74      }
75  
76  }