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CaseHandler.java
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CaseHandler.java
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////////////////////////////////////////////////////////////////////////////////
// checkstyle: Checks Java source code for adherence to a set of rules.
// Copyright (C) 2001-2014 Oliver Burn
//
// 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.indentation;
import com.puppycrawl.tools.checkstyle.api.DetailAST;
import com.puppycrawl.tools.checkstyle.api.TokenTypes;
/**
* Handler for case statements.
*
* @author jrichard
*/
public class CaseHandler extends ExpressionHandler
{
/**
* The child elements of a case expression.
*/
private static final int[] CASE_CHILDREN = new int[] {
TokenTypes.LITERAL_CASE,
TokenTypes.LITERAL_DEFAULT,
};
/**
* Construct an instance of this handler with the given indentation check,
* abstract syntax tree, and parent handler.
*
* @param indentCheck the indentation check
* @param expr the abstract syntax tree
* @param parent the parent handler
*/
public CaseHandler(IndentationCheck indentCheck,
DetailAST expr, ExpressionHandler parent)
{
super(indentCheck, "case", expr, parent);
}
@Override
protected IndentLevel getLevelImpl()
{
return new IndentLevel(getParent().getLevel(),
getIndentCheck().getCaseIndent());
}
/**
* Check the indentation of the case statement.
*/
private void checkCase()
{
checkChildren(getMainAst(), CASE_CHILDREN, getLevel(), true, false);
}
@Override
public IndentLevel suggestedChildLevel(ExpressionHandler child)
{
return getLevel();
}
@Override
public void checkIndentation()
{
checkCase();
}
}