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com.puppycrawl.tools.checkstyle.checks
Class SimplifyBooleanExpressionCheck  

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.SimplifyBooleanExpressionCheck

All Implemented Interfaces:

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

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public class SimplifyBooleanExpressionCheck

extends com.puppycrawl.tools.checkstyle.api.Check

Checks for overly complicated boolean expressions. Currently finds code like if (b == true), b || true, !false, etc.

Rationale: Complex boolean logic makes code hard to understand and maintain.

An example of how to configure the check is:

 <module name="SimplifyBooleanExpression"/>
 

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Field Summary

 

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

 

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

 

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

 

Constructor Summary

SimplifyBooleanExpressionCheck()

 

Method Summary
int[]	getAcceptableTokens()           Prevent user from changing tokens in the configuration.
int[]	getDefaultTokens()           Returns the default token a check is interested in.
int[]	getRequiredTokens()           The tokens that this check must be registered for.
void	visitToken(com.puppycrawl.tools.checkstyle.api.DetailAST aAST)           Called to process a token.

 

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

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

 

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

getMessageBundle, getSeverity, getSeverityLevel, log, log, log, log, log, log, 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

SimplifyBooleanExpressionCheck

public SimplifyBooleanExpressionCheck()

Method Detail

getDefaultTokens

public int[] getDefaultTokens()

Description copied from class: com.puppycrawl.tools.checkstyle.api.Check

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

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getAcceptableTokens

public int[] getAcceptableTokens()

Prevent user from changing tokens in the configuration.

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getRequiredTokens

public int[] getRequiredTokens()

Description copied from class: com.puppycrawl.tools.checkstyle.api.Check

The tokens that this check must be registered for.

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visitToken

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

Description copied from class: com.puppycrawl.tools.checkstyle.api.Check

Called to process a token.

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