Package com.puppycrawl.tools.checkstyle.checks.indentation

Class MethodDefHandler

java.lang.Object

com.puppycrawl.tools.checkstyle.checks.indentation.AbstractExpressionHandler

com.puppycrawl.tools.checkstyle.checks.indentation.BlockParentHandler

com.puppycrawl.tools.checkstyle.checks.indentation.MethodDefHandler

public class MethodDefHandler
extends BlockParentHandler

Handler for method definitions.

Constructor Summary

Constructors

Constructor	Description
MethodDefHandler(IndentationCheck indentCheck, DetailAST ast, AbstractExpressionHandler parent)	Construct an instance of this handler with the given indentation check, abstract syntax tree, and parent handler.

Method Summary

Modifier and Type	Method	Description
void	checkIndentation()	Check the indentation of the expression we are handling.
private void	checkModifiers()	Checks modifiers for method definitions.
private void	checkThrows()	Check the indentation level of the throws clause.
private static String	getHandlerName(DetailAST ast)	Creates a handler name for this class according to ast type.
private static int	getMethodDefLineStart(DetailAST mainAst)	Gets the start line of the method, excluding any annotations.
private static DetailAST	getMethodDefParamRightParen(DetailAST methodDefAst)	Returns right parenthesis of method definition parameter list.
protected DetailAST	getTopLevelAst()	Get the top level expression being managed by this handler.
private boolean	isMethodParenOnItsOwnLineWithMatchingRightParen(DetailAST leftParen, DetailAST rightParen)	Checks if method definition parenthesis are wrapped on separate lines and aligned.
protected boolean	shouldCheckLeftParen(DetailAST leftParen)	Determines whether left parenthesis should be checked.
protected boolean	shouldCheckRightParen(DetailAST leftParen, DetailAST rightParen)	Determines whether right parenthesis should be checked.

Methods inherited from class com.puppycrawl.tools.checkstyle.checks.indentation.BlockParentHandler

canChildrenBeNested, checkTopLevelToken, curlyIndent, getCheckedChildren, getChildrenExpectedIndent, getLeftCurly, getListChild, getNonListChild, getRightCurly, getSuggestedChildIndent

Methods inherited from class com.puppycrawl.tools.checkstyle.checks.indentation.AbstractExpressionHandler

checkChildren, checkExpressionSubtree, checkLeftParen, checkRightParen, checkWrappingIndentation, checkWrappingIndentation, expandedTabsColumnNo, findSubtreeAst, getBasicOffset, getBraceAdjustment, getFirstAstNode, getFirstLine, getFirstToken, getIndent, getIndentCheck, getIndentImpl, getLineStart, getLineStart, getMainAst, getParent, isOnStartOfLine, logError, logError, shouldCheckIndentationForChild, shouldIncreaseIndent

Methods inherited from class java.lang.Object

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

Constructor Details

MethodDefHandler

public MethodDefHandler(IndentationCheck indentCheck,
 DetailAST ast,
 AbstractExpressionHandler parent)

Construct an instance of this handler with the given indentation check, abstract syntax tree, and parent handler.

Parameters:

indentCheck - the indentation check

ast - the abstract syntax tree

parent - the parent handler

Method Details

getTopLevelAst

protected DetailAST getTopLevelAst()

Description copied from class: BlockParentHandler

Get the top level expression being managed by this handler.

Overrides:

getTopLevelAst in class BlockParentHandler

Returns:

the top level expression

checkModifiers

private void checkModifiers()

Checks modifiers for method definitions.

checkThrows

private void checkThrows()

Check the indentation level of the throws clause.

getMethodDefLineStart

private static int getMethodDefLineStart(DetailAST mainAst)

Gets the start line of the method, excluding any annotations. This is required because the current TokenTypes.METHOD_DEF may not always be the start as seen in #3145.

Parameters:

mainAst - The method definition ast.

Returns:

The start column position of the method.

checkIndentation

public void checkIndentation()

Description copied from class: AbstractExpressionHandler

Check the indentation of the expression we are handling.

Overrides:

checkIndentation in class BlockParentHandler

shouldCheckLeftParen

protected boolean shouldCheckLeftParen(DetailAST leftParen)

Description copied from class: BlockParentHandler

Determines whether left parenthesis should be checked.

Overrides:

shouldCheckLeftParen in class BlockParentHandler

Parameters:

leftParen - left parenthesis token

Returns:

true if left parenthesis should be checked

shouldCheckRightParen

protected boolean shouldCheckRightParen(DetailAST leftParen,
 DetailAST rightParen)

Description copied from class: BlockParentHandler

Determines whether right parenthesis should be checked.

Overrides:

shouldCheckRightParen in class BlockParentHandler

Parameters:

leftParen - left parenthesis token

rightParen - right parenthesis token

Returns:

true if right parenthesis should be checked

isMethodParenOnItsOwnLineWithMatchingRightParen

private boolean isMethodParenOnItsOwnLineWithMatchingRightParen(DetailAST leftParen,
 DetailAST rightParen)

Checks if method definition parenthesis are wrapped on separate lines and aligned.

Parameters:

leftParen - left parenthesis of method definition

rightParen - right parenthesis of method definition

Returns:

true if both parenthesis start their own lines and are aligned

getMethodDefParamRightParen

private static DetailAST getMethodDefParamRightParen(DetailAST methodDefAst)

Returns right parenthesis of method definition parameter list.

Parameters:

methodDefAst - method definition ast node(TokenTypes.LITERAL_IF)

Returns:

right parenthesis of method definition parameter list.

getHandlerName

private static String getHandlerName(DetailAST ast)

Creates a handler name for this class according to ast type.

Parameters:

ast - the abstract syntax tree.

Returns:

handler name for this class.