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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) 2001-2019 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.indentation;
import com.puppycrawl.tools.checkstyle.api.DetailAST;
import com.puppycrawl.tools.checkstyle.api.TokenTypes;
/**
* Handler for switch statements.
*
*/
public class SwitchHandler extends BlockParentHandler {
/**
* Construct an instance of this handler with the given indentation check,
* abstract syntax tree, and parent handler.
*
* @param indentCheck the indentation check
* @param ast the abstract syntax tree
* @param parent the parent handler
*/
public SwitchHandler(IndentationCheck indentCheck,
DetailAST ast, AbstractExpressionHandler parent) {
super(indentCheck, "switch", ast, parent);
}
@Override
protected DetailAST getLeftCurly() {
return getMainAst().findFirstToken(TokenTypes.LCURLY);
}
@Override
protected DetailAST getRightCurly() {
return getMainAst().findFirstToken(TokenTypes.RCURLY);
}
@Override
protected DetailAST getListChild() {
// all children should be taken care of by case handler (plus
// there is no parent of just the cases, if checking is needed
// here in the future, an additional way beyond checkChildren()
// will have to be devised to get children)
return null;
}
@Override
protected DetailAST getNonListChild() {
return null;
}
/**
* Check the indentation of the switch expression.
*/
private void checkSwitchExpr() {
checkExpressionSubtree(
getMainAst().findFirstToken(TokenTypes.LPAREN).getNextSibling(),
getIndent(),
false,
false);
}
@Override
public void checkIndentation() {
checkSwitchExpr();
super.checkIndentation();
}
}