com.github.sevntu.checkstyle.checks.coding

Class ReturnNullInsteadOfBooleanCheck

java.lang.Object

com.puppycrawl.tools.checkstyle.api.AutomaticBean

com.puppycrawl.tools.checkstyle.api.AbstractViolationReporter

com.puppycrawl.tools.checkstyle.api.AbstractCheck

com.github.sevntu.checkstyle.checks.coding.ReturnNullInsteadOfBooleanCheck

All Implemented Interfaces:

com.puppycrawl.tools.checkstyle.api.Configurable, com.puppycrawl.tools.checkstyle.api.Contextualizable

public class ReturnNullInsteadOfBooleanCheck
extends com.puppycrawl.tools.checkstyle.api.AbstractCheck

It is a bad practice to use Boolean type for ternary logic. It is intended to be used for binary logic.

Since:

1.8.0

Author:

Ivan Sopov

Nested Class Summary

Nested classes/interfaces inherited from class com.puppycrawl.tools.checkstyle.api.AutomaticBean

com.puppycrawl.tools.checkstyle.api.AutomaticBean.OutputStreamOptions

Field Summary

Fields

Modifier and Type	Field and Description
static String	MSG_KEY Warning message key.

Constructor Summary

Constructors

Constructor and Description
ReturnNullInsteadOfBooleanCheck()

Method Summary

Modifier and Type	Method and Description
void	beginTree(com.puppycrawl.tools.checkstyle.api.DetailAST rootAST)
int[]	getAcceptableTokens()
int[]	getDefaultTokens()
int[]	getRequiredTokens()
void	leaveToken(com.puppycrawl.tools.checkstyle.api.DetailAST ast)
void	visitToken(com.puppycrawl.tools.checkstyle.api.DetailAST ast)

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

clearMessages, destroy, finishTree, getFileContents, getLine, getLines, getMessages, getTabWidth, getTokenNames, init, isCommentNodesRequired, log, log, log, setFileContents, setTabWidth, setTokens

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

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

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

configure, contextualize, getConfiguration, setupChild

Methods inherited from class java.lang.Object

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

Field Detail

MSG_KEY

public static final String MSG_KEY

Warning message key.

See Also:

Constant Field Values

Constructor Detail

ReturnNullInsteadOfBooleanCheck

public ReturnNullInsteadOfBooleanCheck()

Method Detail

getDefaultTokens

public int[] getDefaultTokens()

Specified by:

getDefaultTokens in class com.puppycrawl.tools.checkstyle.api.AbstractCheck

getAcceptableTokens

public int[] getAcceptableTokens()

Specified by:

getAcceptableTokens in class com.puppycrawl.tools.checkstyle.api.AbstractCheck

getRequiredTokens

public int[] getRequiredTokens()

Specified by:

getRequiredTokens in class com.puppycrawl.tools.checkstyle.api.AbstractCheck

beginTree

public void beginTree(com.puppycrawl.tools.checkstyle.api.DetailAST rootAST)

Overrides:

beginTree in class com.puppycrawl.tools.checkstyle.api.AbstractCheck

visitToken

public void visitToken(com.puppycrawl.tools.checkstyle.api.DetailAST ast)

Overrides:

visitToken in class com.puppycrawl.tools.checkstyle.api.AbstractCheck

leaveToken

public void leaveToken(com.puppycrawl.tools.checkstyle.api.DetailAST ast)

Overrides:

leaveToken in class com.puppycrawl.tools.checkstyle.api.AbstractCheck