Package org.codehaus.groovy.control

Class PlaceholderVisitor

java.lang.Object

org.codehaus.groovy.ast.CodeVisitorSupport

org.codehaus.groovy.ast.ClassCodeVisitorSupport

org.codehaus.groovy.control.PlaceholderVisitor

All Implemented Interfaces:

GroovyClassVisitor, GroovyCodeVisitor, ErrorCollecting

public class PlaceholderVisitor
extends ClassCodeVisitorSupport

Constructor Summary

Constructors

Constructor	Description
PlaceholderVisitor(CompilationUnit compilationUnit, SourceUnit source)

Method Summary

Modifier and Type	Method	Description
protected SourceUnit	getSourceUnit()	Provides access to the SourceUnit for error reporting during visitation.
static boolean	isPlaceholder(ASTNode node)
void	visitClosureExpression(ClosureExpression expression)	Visit the Closure (or Lambda) marking underscore-named parameters as placeholders
void	visitDeclarationExpression(DeclarationExpression expression)	Visit the declaration marking underscore-named variables in multi-assignments as placeholders

Methods inherited from class org.codehaus.groovy.ast.ClassCodeVisitorSupport

addError, visitAnnotation, visitAnnotations, visitAnnotations, visitAssertStatement, visitBlockStatement, visitBreakStatement, visitCaseStatement, visitCatchStatement, visitClass, visitClassCodeContainer, visitConstructor, visitConstructorOrMethod, visitContinueStatement, visitDoWhileLoop, visitExpressionStatement, visitField, visitForLoop, visitIfElse, visitImports, visitMethod, visitObjectInitializerStatements, visitPackage, visitProperty, visitReturnStatement, visitStatement, visitStatementAnnotations, visitSwitch, visitSynchronizedStatement, visitThrowStatement, visitTryCatchFinally, visitWhileLoop

Methods inherited from class org.codehaus.groovy.ast.CodeVisitorSupport

afterSwitchCaseStatementsVisited, afterSwitchConditionExpressionVisited, visitArgumentlistExpression, visitArrayExpression, visitAttributeExpression, visitBinaryExpression, visitBitwiseNegationExpression, visitBooleanExpression, visitBytecodeExpression, visitCastExpression, visitClassExpression, visitClosureListExpression, visitConstantExpression, visitConstructorCallExpression, visitEmptyStatement, visitFieldExpression, visitGStringExpression, visitLambdaExpression, visitListExpression, visitMapEntryExpression, visitMapExpression, visitMethodCallExpression, visitMethodPointerExpression, visitMethodReferenceExpression, visitNotExpression, visitPostfixExpression, visitPrefixExpression, visitPropertyExpression, visitRangeExpression, visitShortTernaryExpression, visitSpreadExpression, visitSpreadMapExpression, visitStaticMethodCallExpression, visitTernaryExpression, visitTupleExpression, visitUnaryMinusExpression, visitUnaryPlusExpression, visitVariableExpression

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.codehaus.groovy.ast.GroovyCodeVisitor

visit, visit, visitEmptyExpression, visitListOfExpressions

Constructor Details

PlaceholderVisitor

public PlaceholderVisitor(CompilationUnit compilationUnit,
 SourceUnit source)

Method Details

getSourceUnit

protected SourceUnit getSourceUnit()

Description copied from class: ClassCodeVisitorSupport

Provides access to the SourceUnit for error reporting during visitation. Implementations must override this method.

Specified by:

getSourceUnit in class ClassCodeVisitorSupport

Returns:

the source unit for this visitor

visitDeclarationExpression

public void visitDeclarationExpression(DeclarationExpression expression)

Visit the declaration marking underscore-named variables in multi-assignments as placeholders

Specified by:

visitDeclarationExpression in interface GroovyCodeVisitor

Overrides:

visitDeclarationExpression in class ClassCodeVisitorSupport

Parameters:

expression - the expression to check

visitClosureExpression

public void visitClosureExpression(ClosureExpression expression)

Visit the Closure (or Lambda) marking underscore-named parameters as placeholders

Specified by:

visitClosureExpression in interface GroovyCodeVisitor

Overrides:

visitClosureExpression in class ClassCodeVisitorSupport

Parameters:

expression - the expression to check

isPlaceholder

public static boolean isPlaceholder(ASTNode node)