com.puppycrawl.tools.checkstyle.checks.whitespace.NoLineWrapCheck Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of checkstyle Show documentation
Show all versions of checkstyle Show documentation
Checkstyle is a development tool to help programmers write Java code
that adheres to a coding standard
////////////////////////////////////////////////////////////////////////////////
// checkstyle: Checks Java source code for adherence to a set of rules.
// Copyright (C) 2001-2016 the original author or authors.
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
////////////////////////////////////////////////////////////////////////////////
package com.puppycrawl.tools.checkstyle.checks.whitespace;
import com.puppycrawl.tools.checkstyle.api.AbstractCheck;
import com.puppycrawl.tools.checkstyle.api.DetailAST;
import com.puppycrawl.tools.checkstyle.api.TokenTypes;
import com.puppycrawl.tools.checkstyle.utils.CommonUtils;
/**
* Checks that chosen statements are not line-wrapped.
* By default this Check restricts wrapping import and package statements,
* but it's possible to check any statement.
*
*
* Examples of line-wrapped statements (bad case):
*
{@code package com.puppycrawl.
* tools.checkstyle.checks;
*
* import com.puppycrawl.tools.
* checkstyle.api.AbstractCheck;
* }
*
*
* To configure the check to force no line-wrapping
* in package and import statements (default values):
*
*
* <module name="NoLineWrap"/>
*
*
*
* To configure the check to force no line-wrapping only
* in import statements:
*
*
* <module name="NoLineWrap">
* <property name="tokens" value="IMPORT"/>
* </module>
*
*
* Examples of not line-wrapped statements (good case):
*
{@code import com.puppycrawl.tools.checkstyle.api.AbstractCheck;
* }
*
* @author maxvetrenko
*/
public class NoLineWrapCheck extends AbstractCheck {
/**
* A key is pointing to the warning message text in "messages.properties"
* file.
*/
public static final String MSG_KEY = "no.line.wrap";
@Override
public int[] getDefaultTokens() {
return new int[] {TokenTypes.PACKAGE_DEF, TokenTypes.IMPORT};
}
@Override
public int[] getAcceptableTokens() {
return new int[] {
TokenTypes.IMPORT,
TokenTypes.PACKAGE_DEF,
TokenTypes.CLASS_DEF,
TokenTypes.METHOD_DEF,
TokenTypes.CTOR_DEF,
TokenTypes.ENUM_DEF,
TokenTypes.INTERFACE_DEF,
};
}
@Override
public int[] getRequiredTokens() {
return CommonUtils.EMPTY_INT_ARRAY;
}
@Override
public void visitToken(DetailAST ast) {
if (ast.getLineNo() != ast.getLastChild().getLineNo()) {
log(ast.getLineNo(), MSG_KEY, ast.getText());
}
}
}