com.puppycrawl.tools.checkstyle.checks.whitespace

Class MethodParamPadCheck

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.AbstractOptionCheck<PadOption>

com.puppycrawl.tools.checkstyle.checks.whitespace.MethodParamPadCheck

All Implemented Interfaces:

Configurable, Contextualizable

public class MethodParamPadCheck
extends AbstractOptionCheck<PadOption>

Checks the padding between the identifier of a method definition, constructor definition, method call, or constructor invocation; and the left parenthesis of the parameter list. That is, if the identifier and left parenthesis are on the same line, checks whether a space is required immediately after the identifier or such a space is forbidden. If they are not on the same line, reports an error, unless configured to allow line breaks.

By default the check will check the following tokens: CTOR_DEF, LITERAL_NEW, METHOD_CALL, METHOD_DEF, SUPER_CTOR_CALL.

An example of how to configure the check is:

 <module name="MethodParamPad"/>
 

An example of how to configure the check to require a space after the identifier of a method definition, except if the left parenthesis occurs on a new line, is:

 <module name="MethodParamPad">
     <property name="tokens" value="METHOD_DEF"/>
     <property name="option" value="space"/>
     <property name="allowLineBreaks" value="true"/>
 </module>
 

Author:

Rick Giles

Field Summary

Fields

Modifier and Type	Field and Description
static String	LINE_PREVIOUS A key is pointing to the warning message text in "messages.properties" file.
static String	WS_NOT_PRECEDED A key is pointing to the warning message text in "messages.properties" file.
static String	WS_PRECEDED A key is pointing to the warning message text in "messages.properties" file.

Fields inherited from class com.puppycrawl.tools.checkstyle.checks.AbstractOptionCheck

SEMICOLON

Constructor Summary

Constructors

Constructor and Description
MethodParamPadCheck() Sets the pad option to nospace.

Method Summary

Modifier and Type	Method and Description
int[]	getAcceptableTokens() The configurable token set.
int[]	getDefaultTokens() Returns the default token a check is interested in.
int[]	getRequiredTokens() The tokens that this check must be registered for.
void	setAllowLineBreaks(boolean allowLineBreaks) Control whether whitespace is flagged at line breaks.
void	visitToken(DetailAST ast) Called to process a token.

Methods inherited from class com.puppycrawl.tools.checkstyle.checks.AbstractOptionCheck

getAbstractOption, setOption

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

beginTree, destroy, finishTree, getClassLoader, getFileContents, getLine, getLines, 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

Field Detail

LINE_PREVIOUS

public static final String LINE_PREVIOUS

A key is pointing to the warning message text in "messages.properties" file.

See Also:

Constant Field Values

WS_PRECEDED

public static final String WS_PRECEDED

A key is pointing to the warning message text in "messages.properties" file.

See Also:

Constant Field Values

WS_NOT_PRECEDED

public static final String WS_NOT_PRECEDED

A key is pointing to the warning message text in "messages.properties" file.

See Also:

Constant Field Values

Constructor Detail

MethodParamPadCheck

public MethodParamPadCheck()

Sets the pad option to nospace.

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

getAcceptableTokens

public int[] getAcceptableTokens()

Description copied from class: Check

The configurable token set. Used to protect Checks against malicious users who specify an unacceptable token set in the configuration file. The default implementation returns the check's default tokens.

Overrides:

getAcceptableTokens in class Check

Returns:

the token set this check is designed for.

See Also:

TokenTypes

getRequiredTokens

public int[] getRequiredTokens()

Description copied from class: Check

The tokens that this check must be registered for.

Overrides:

getRequiredTokens in class Check

Returns:

the token set this must be registered for.

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

setAllowLineBreaks

public void setAllowLineBreaks(boolean allowLineBreaks)

Control whether whitespace is flagged at line breaks.

Parameters:

allowLineBreaks - whether whitespace should be flagged at line breaks.