NestedIfDepthCheck.java
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com.puppycrawl.tools.checkstyle.checks.coding |
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Checkstyle |
View: Reasons, Metrics, Source Code
These are the metrics that contribute to the Enerjy Score for this file, ranked by impact. So the metrics listed at the top influence the score to a greater extent that the metrics listed at the bottom.
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////////////////////////////////////////////////////////////////////////////////
// checkstyle: Checks Java source code for adherence to a set of rules.
// Copyright (C) 2001-2007 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.coding;
import com.puppycrawl.tools.checkstyle.api.DetailAST;
import com.puppycrawl.tools.checkstyle.api.TokenTypes;
import com.puppycrawl.tools.checkstyle.checks.CheckUtils;
/**
* Restricts nested if-else blocks to a specified depth (default = 1).
*
* @author <a href="mailto:simon@redhillconsulting.com.au">Simon Harris</a>
*/
public final class NestedIfDepthCheck extends AbstractNestedDepthCheck
{
/** default allowed nesting depth. */
private static final int DEFAULT_MAX = 1;
/** Creates new check instance with default allowed nesting depth. */
public NestedIfDepthCheck()
{
super(DEFAULT_MAX);
}
/** {@inheritDoc} */
public int[] getDefaultTokens()
{
return new int[] {TokenTypes.LITERAL_IF};
}
/** {@inheritDoc} */
public void visitToken(DetailAST aAST)
{
switch (aAST.getType()) {
case TokenTypes.LITERAL_IF:
visitLiteralIf(aAST);
break;
default:
throw new IllegalStateException(aAST.toString());
}
}
/** {@inheritDoc} */
public void leaveToken(DetailAST aAST)
{
switch (aAST.getType()) {
case TokenTypes.LITERAL_IF:
leaveLiteralIf(aAST);
break;
default:
throw new IllegalStateException(aAST.toString());
}
}
/**
* Increases current nesting depth.
* @param aIf node for if.
*/
private void visitLiteralIf(DetailAST aIf)
{
if (!CheckUtils.isElseIf(aIf)) {
nestIn(aIf, "nested.if.depth");
}
}
/**
* Decreases current nesting depth.
* @param aIf node for if.
*/
private void leaveLiteralIf(DetailAST aIf)
{
if (!CheckUtils.isElseIf(aIf)) {
nestOut();
}
}
}
The table below shows all metrics for NestedIfDepthCheck.java.
| Metric | Value | Description | |
|---|---|---|---|