1 ///////////////////////////////////////////////////////////////////////////////////////////////
2 // checkstyle: Checks Java source code and other text files for adherence to a set of rules.
3 // Copyright (C) 2001-2025 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.whitespace;
21
22 import com.puppycrawl.tools.checkstyle.api.DetailAST;
23 import com.puppycrawl.tools.checkstyle.api.TokenTypes;
24
25 /**
26 * <div>
27 * Checks the policy on the padding of parentheses for typecasts. That is, whether a space
28 * is required after a left parenthesis and before a right parenthesis, or such
29 * spaces are forbidden.
30 * </div>
31 *
32 * @since 3.2
33 */
34 public class TypecastParenPadCheck extends AbstractParenPadCheck {
35
36 @Override
37 public int[] getRequiredTokens() {
38 return new int[] {TokenTypes.RPAREN, TokenTypes.TYPECAST};
39 }
40
41 @Override
42 public int[] getDefaultTokens() {
43 return getRequiredTokens();
44 }
45
46 @Override
47 public int[] getAcceptableTokens() {
48 return getRequiredTokens();
49 }
50
51 @Override
52 public void visitToken(DetailAST ast) {
53 // Strange logic in this method to guard against checking RPAREN tokens
54 // that are not associated with a TYPECAST token.
55 if (ast.getType() == TokenTypes.TYPECAST) {
56 processLeft(ast);
57 }
58 else if (ast.getParent().getType() == TokenTypes.TYPECAST
59 && ast.getParent().findFirstToken(TokenTypes.RPAREN) == ast) {
60 processRight(ast);
61 }
62 }
63
64 }