com.puppycrawl.tools.checkstyle.checks.coding

Class ReturnCountCheck

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.AbstractFormatCheck

com.puppycrawl.tools.checkstyle.checks.coding.ReturnCountCheck

All Implemented Interfaces:

Configurable, Contextualizable

public final class ReturnCountCheck
extends AbstractFormatCheck

Restricts return statements to a specified count (default = 2). Ignores specified methods (equals() by default).

Rationale: Too many return points can be indication that code is attempting to do too much or may be difficult to understand.

Author:

Simon Harris TODO: Test for inside a static block

Constructor Summary

Constructors

Constructor and Description
ReturnCountCheck() Creates new instance of the checks.

Method Summary

Methods

Modifier and Type	Method and Description
void	beginTree(DetailAST rootAST) Called before the starting to process a tree.
int[]	getDefaultTokens() Returns the default token a check is interested in.
int	getMax() Getter for max property.
int[]	getRequiredTokens() The tokens that this check must be registered for.
void	leaveToken(DetailAST ast) Called after all the child nodes have been process.
void	setMax(int max) Setter for max property.
void	visitToken(DetailAST ast) Called to process a token.

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

getFormat, getRegexp, setCompileFlags, setFormat

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

destroy, finishTree, getAcceptableTokens, getClassLoader, getFileContents, getLine, getLines, getTabWidth, getTokenNames, init, isCommentNodesRequired, 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

ReturnCountCheck

public ReturnCountCheck()

Creates new instance of the checks.

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

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

getMax

public int getMax()

Getter for max property.

Returns:

maximum allowed number of return statements.

setMax

public void setMax(int max)

Setter for max property.

Parameters:

max - maximum allowed number of return statements.

beginTree

public void beginTree(DetailAST rootAST)

Description copied from class: Check

Called before the starting to process a tree. Ideal place to initialise information that is to be collected whilst processing a tree.

Overrides:

beginTree in class Check

Parameters:

rootAST - the root of the tree

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

leaveToken

public void leaveToken(DetailAST ast)

Description copied from class: Check

Called after all the child nodes have been process.

Overrides:

leaveToken in class Check

Parameters:

ast - the token leaving