com.puppycrawl.tools.checkstyle.checks.coding

Class MagicNumberCheck

java.lang.Object

com.puppycrawl.tools.checkstyle.api.AutomaticBean

com.puppycrawl.tools.checkstyle.api.AbstractViolationReporter

com.puppycrawl.tools.checkstyle.api.Check

com.puppycrawl.tools.checkstyle.checks.coding.MagicNumberCheck

All Implemented Interfaces:

Configurable, Contextualizable

public class MagicNumberCheck
extends Check

Checks for magic numbers.

An example of how to configure the check to ignore numbers 0, 1, 1.5, 2:

 <module name="MagicNumber">
    <property name="ignoreNumbers" value="0, 1, 1.5, 2"/>
    <property name="ignoreHashCodeMethod" value="true"/>
 </module>
 

Author:

Rick Giles, Lars Kühne, Daniel Solano Gómez

Constructor Summary

Constructors

Constructor and Description
MagicNumberCheck()

Method Summary

Methods

Modifier and Type	Method and Description
int[]	getDefaultTokens() Returns the default token a check is interested in.
void	setIgnoreAnnotation(boolean ignoreAnnotation) Set whether to ignore Annotations.
void	setIgnoreHashCodeMethod(boolean ignoreHashCodeMethod) Set whether to ignore hashCode methods.
void	setIgnoreNumbers(double[] list) Sets the numbers to ignore in the check.
void	visitToken(DetailAST ast) Called to process a token.

Methods inherited from class com.puppycrawl.tools.checkstyle.api.Check

beginTree, destroy, finishTree, getAcceptableTokens, getClassLoader, getFileContents, getLine, getLines, getRequiredTokens, getTabWidth, getTokenNames, init, isCommentNodesRequired, leaveToken, log, log, setClassLoader, setFileContents, setMessages, setTabWidth, setTokens

Methods inherited from class com.puppycrawl.tools.checkstyle.api.AbstractViolationReporter

getCustomMessages, getId, getMessageBundle, getSeverity, getSeverityLevel, log, setId, setSeverity

Methods inherited from class com.puppycrawl.tools.checkstyle.api.AutomaticBean

configure, contextualize, finishLocalSetup, getConfiguration, setupChild

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

MagicNumberCheck

public MagicNumberCheck()

Method Detail

getDefaultTokens

public int[] getDefaultTokens()

Description copied from class: Check

Returns the default token a check is interested in. Only used if the configuration for a check does not define the tokens.

Specified by:

getDefaultTokens in class Check

Returns:

the default tokens

See Also:

TokenTypes

visitToken

public void visitToken(DetailAST ast)

Description copied from class: Check

Called to process a token.

Overrides:

visitToken in class Check

Parameters:

ast - the token to process

setIgnoreNumbers

public void setIgnoreNumbers(double[] list)

Sets the numbers to ignore in the check. BeanUtils converts numeric token list to double array automatically.

Parameters:

list - list of numbers to ignore.

setIgnoreHashCodeMethod

public void setIgnoreHashCodeMethod(boolean ignoreHashCodeMethod)

Set whether to ignore hashCode methods.

Parameters:

ignoreHashCodeMethod - decide whether to ignore hash code methods

setIgnoreAnnotation

public void setIgnoreAnnotation(boolean ignoreAnnotation)

Set whether to ignore Annotations.

Parameters:

ignoreAnnotation - decide whether to ignore annotations