Package com.intellij.psi

Class JavaRecursiveElementWalkingVisitor

java.lang.Object

com.intellij.psi.PsiElementVisitor

com.intellij.psi.JavaElementVisitor

com.intellij.psi.JavaRecursiveElementWalkingVisitor

All Implemented Interfaces:

PsiRecursiveVisitor

Direct Known Subclasses:

ClassMemberReferencesVisitor, CyclomaticComplexityVisitor, InnerClassReferenceVisitor, IntroduceParameterProcessor.AnySameNameVariables, IntroduceParameterProcessor.AnySupers, JavaCompilingVisitor, JavaConstantExpressionEvaluator, JavaUnresolvableLocalCollisionDetector.ConflictingLocalVariablesVisitor, PsiExpressionTrimRenderer, TypeParametersVisitor, UnnecessaryFullyQualifiedNameInspection.QualificationRemover, VariableAssignedVisitor, Visitor

public abstract class JavaRecursiveElementWalkingVisitor
extends JavaElementVisitor
implements PsiRecursiveVisitor

a JavaElementVisitor which also visits all children elements in a tree pre-order, see Tree traversal:Pre-order for details.

Note: This visitor handles all containing elements without consuming stack space, so it can be used even for very deep trees. Note 2: This visitor works for source-based PSI only. Any elements implementing PsiCompiledElement will be rejected.

Field Summary

Fields inherited from class com.intellij.psi.PsiElementVisitor

EMPTY_VISITOR

Constructor Summary

Constructors

Constructor and Description
JavaRecursiveElementWalkingVisitor()

Method Summary

Modifier and Type	Method and Description
protected void	elementFinished(PsiElement element)
void	stopWalking()
void	visitElement(PsiElement element)
void	visitReferenceExpression(PsiReferenceExpression expression) PsiReferenceExpression is PsiReferenceElement and PsiExpression at the same time.

Methods inherited from class com.intellij.psi.JavaElementVisitor

visitAnnotation, visitAnnotationArrayInitializer, visitAnnotationMethod, visitAnnotationParameterList, visitAnonymousClass, visitArrayAccessExpression, visitArrayInitializerExpression, visitAssertStatement, visitAssignmentExpression, visitBinaryExpression, visitBlockStatement, visitBreakStatement, visitCallExpression, visitCatchSection, visitClass, visitClassInitializer, visitClassObjectAccessExpression, visitCodeBlock, visitCodeFragment, visitConditionalExpression, visitContinueStatement, visitDeclarationStatement, visitDocComment, visitDocTag, visitDocTagValue, visitDocToken, visitDoWhileStatement, visitEmptyStatement, visitEnumConstant, visitEnumConstantInitializer, visitExpression, visitExpressionList, visitExpressionListStatement, visitExpressionStatement, visitField, visitForeachStatement, visitForStatement, visitIdentifier, visitIfStatement, visitImplicitVariable, visitImportList, visitImportStatement, visitImportStaticReferenceElement, visitImportStaticStatement, visitInlineDocTag, visitInstanceOfExpression, visitJavaFile, visitJavaToken, visitKeyword, visitLabeledStatement, visitLambdaExpression, visitLiteralExpression, visitLocalVariable, visitMethod, visitMethodCallExpression, visitMethodReferenceExpression, visitModifierList, visitModule, visitModuleReferenceElement, visitModuleStatement, visitNameValuePair, visitNewExpression, visitPackage, visitPackageAccessibilityStatement, visitPackageStatement, visitParameter, visitParameterList, visitParenthesizedExpression, visitPattern, visitPatternVariable, visitPolyadicExpression, visitPostfixExpression, visitPrefixExpression, visitProvidesStatement, visitReceiverParameter, visitRecordComponent, visitRecordHeader, visitReferenceElement, visitReferenceList, visitReferenceParameterList, visitRequiresStatement, visitResourceExpression, visitResourceList, visitResourceVariable, visitReturnStatement, visitStatement, visitSuperExpression, visitSwitchExpression, visitSwitchLabeledRuleStatement, visitSwitchLabelStatement, visitSwitchStatement, visitSynchronizedStatement, visitThisExpression, visitThrowStatement, visitTryStatement, visitTypeCastExpression, visitTypeElement, visitTypeParameter, visitTypeParameterList, visitTypeTestPattern, visitUnaryExpression, visitUsesStatement, visitVariable, visitWhileStatement, visitYieldStatement

Methods inherited from class com.intellij.psi.PsiElementVisitor

visitBinaryFile, visitComment, visitDirectory, visitErrorElement, visitFile, visitOuterLanguageElement, visitPlainText, visitPlainTextFile, visitWhiteSpace

Methods inherited from class java.lang.Object

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

Constructor Detail

JavaRecursiveElementWalkingVisitor

public JavaRecursiveElementWalkingVisitor()

Method Detail

visitElement

public void visitElement(PsiElement element)

Overrides:

visitElement in class PsiElementVisitor

elementFinished

protected void elementFinished(PsiElement element)

visitReferenceExpression

public void visitReferenceExpression(PsiReferenceExpression expression)

Description copied from class: JavaElementVisitor

PsiReferenceExpression is PsiReferenceElement and PsiExpression at the same time. If we'd call both visitReferenceElement and visitExpression in default implementation of this method we can easily stuck with exponential algorithm if the derived visitor extends visitElement() and accepts children there. JavaRecursiveElementVisitor knows that and implements this method accordingly. All other visitor must decide themselves what implementation (visitReferenceElement() or visitExpression() or none or LOG.error()) is appropriate for them.

Overrides:

visitReferenceExpression in class JavaElementVisitor

stopWalking

public void stopWalking()