Module jdk.compiler
Package com.sun.source.util

Class SimpleTreeVisitor<R,​P>

  • Type Parameters:
    R - the return type of this visitor's methods. Use Void for visitors that do not need to return results.
    P - the type of the additional parameter to this visitor's methods. Use Void for visitors that do not need an additional parameter.
    All Implemented Interfaces:
    TreeVisitor<R,​P>
    public class SimpleTreeVisitor<R,​P>
extends Object
implements TreeVisitor<R,​P>
    A simple visitor for tree nodes.
    Since:
    1.6

    • Field Detail

      • DEFAULT_VALUE

        protected final R DEFAULT_VALUE
        The default value, returned by the default action.

    • Constructor Detail

      • SimpleTreeVisitor

        protected SimpleTreeVisitor()
        Creates a visitor, with a DEFAULT_VALUE of null.

      • SimpleTreeVisitor

        protected SimpleTreeVisitor​(R defaultValue)
        Creates a visitor, with a specified DEFAULT_VALUE.
        Parameters:
        defaultValue - the default value to be returned by the default action.

    • Method Detail

      • defaultAction

        protected R defaultAction​(Tree node,
                          P p)
        The default action, used by all visit methods that are not overridden.
        Parameters:
        node - the node being visited
        p - the parameter value passed to the visit method
        Returns:
        the result value to be returned from the visit method

      • visit

        public final R visit​(Tree node,
                     P p)
        Invokes the appropriate visit method specific to the type of the node.
        Parameters:
        node - the node on which to dispatch
        p - a parameter to be passed to the appropriate visit method
        Returns:
        the value returns from the appropriate visit method

      • visit

        public final R visit​(Iterable<? extends Tree> nodes,
                     P p)
        Invokes the appropriate visit method on each of a sequence of nodes.
        Parameters:
        nodes - the nodes on which to dispatch
        p - a parameter value to be passed to each appropriate visit method
        Returns:
        the value return from the last of the visit methods, or null if none were called.

      • visitCompilationUnit

        public R visitCompilationUnit​(CompilationUnitTree node,
                              P p)
        Visits a CompilationUnitTree node. This implementation calls defaultAction.
        Specified by:
        visitCompilationUnit in interface TreeVisitor<R,​P>
        Parameters:
        node - the node being visited
        p - a parameter value
        Returns:
        the result of defaultAction

      • visitPackage

        public R visitPackage​(PackageTree node,
                      P p)
        Visits a PackageTree node. This implementation calls defaultAction.
        Specified by:
        visitPackage in interface TreeVisitor<R,​P>
        Parameters:
        node - the node being visited
        p - a parameter value
        Returns:
        the result of defaultAction

      • visitImport

        public R visitImport​(ImportTree node,
                     P p)
        Visits an ImportTree node. This implementation calls defaultAction.
        Specified by:
        visitImport in interface TreeVisitor<R,​P>
        Parameters:
        node - the node being visited
        p - a parameter value
        Returns:
        the result of defaultAction

      • visitClass

        public R visitClass​(ClassTree node,
                    P p)
        Visits a ClassTree node. This implementation calls defaultAction.
        Specified by:
        visitClass in interface TreeVisitor<R,​P>
        Parameters:
        node - the node being visited
        p - a parameter value
        Returns:
        the result of defaultAction

      • visitMethod

        public R visitMethod​(MethodTree node,
                     P p)
        Visits a MethodTree node. This implementation calls defaultAction.
        Specified by:
        visitMethod in interface TreeVisitor<R,​P>
        Parameters:
        node - the node being visited
        p - a parameter value
        Returns:
        the result of defaultAction

      • visitVariable

        public R visitVariable​(VariableTree node,
                       P p)
        Visits a VariableTree node. This implementation calls defaultAction.
        Specified by:
        visitVariable in interface TreeVisitor<R,​P>
        Parameters:
        node - the node being visited
        p - a parameter value
        Returns:
        the result of defaultAction

      • visitEmptyStatement

        public R visitEmptyStatement​(EmptyStatementTree node,
                             P p)
        Visits an EmptyStatementTree node. This implementation calls defaultAction.
        Specified by:
        visitEmptyStatement in interface TreeVisitor<R,​P>
        Parameters:
        node - the node being visited
        p - a parameter value
        Returns:
        the result of defaultAction

      • visitBlock

        public R visitBlock​(BlockTree node,
                    P p)
        Visits a BlockTree node. This implementation calls defaultAction.
        Specified by:
        visitBlock in interface TreeVisitor<R,​P>
        Parameters:
        node - the node being visited
        p - a parameter value
        Returns:
        the result of defaultAction

      • visitDoWhileLoop

        public R visitDoWhileLoop​(DoWhileLoopTree node,
                          P p)
        Visits a DoWhileTree node. This implementation calls defaultAction.
        Specified by:
        visitDoWhileLoop in interface TreeVisitor<R,​P>
        Parameters:
        node - the node being visited
        p - a parameter value
        Returns:
        the result of defaultAction

      • visitWhileLoop

        public R visitWhileLoop​(WhileLoopTree node,
                        P p)
        Visits a WhileLoopTree node. This implementation calls defaultAction.
        Specified by:
        visitWhileLoop in interface TreeVisitor<R,​P>
        Parameters:
        node - the node being visited
        p - a parameter value
        Returns:
        the result of defaultAction

      • visitForLoop

        public R visitForLoop​(ForLoopTree node,
                      P p)
        Visits a ForLoopTree node. This implementation calls defaultAction.
        Specified by:
        visitForLoop in interface TreeVisitor<R,​P>
        Parameters:
        node - the node being visited
        p - a parameter value
        Returns:
        the result of defaultAction

      • visitEnhancedForLoop

        public R visitEnhancedForLoop​(EnhancedForLoopTree node,
                              P p)
        Visits an EnhancedForLoopTree node. This implementation calls defaultAction.
        Specified by:
        visitEnhancedForLoop in interface TreeVisitor<R,​P>
        Parameters:
        node - the node being visited
        p - a parameter value
        Returns:
        the result of defaultAction

      • visitLabeledStatement

        public R visitLabeledStatement​(LabeledStatementTree node,
                               P p)
        Visits a LabeledStatementTree node. This implementation calls defaultAction.
        Specified by:
        visitLabeledStatement in interface TreeVisitor<R,​P>
        Parameters:
        node - the node being visited
        p - a parameter value
        Returns:
        the result of defaultAction

      • visitSwitch

        public R visitSwitch​(SwitchTree node,
                     P p)
        Visits a SwitchTree node. This implementation calls defaultAction.
        Specified by:
        visitSwitch in interface TreeVisitor<R,​P>
        Parameters:
        node - the node being visited
        p - a parameter value
        Returns:
        the result of defaultAction

      • visitCase

        public R visitCase​(CaseTree node,
                   P p)
        Visits a CaseTree node. This implementation calls defaultAction.
        Specified by:
        visitCase in interface TreeVisitor<R,​P>
        Parameters:
        node - the node being visited
        p - a parameter value
        Returns:
        the result of defaultAction

      • visitSynchronized

        public R visitSynchronized​(SynchronizedTree node,
                           P p)
        Visits a SynchronizedTree node. This implementation calls defaultAction.
        Specified by:
        visitSynchronized in interface TreeVisitor<R,​P>
        Parameters:
        node - the node being visited
        p - a parameter value
        Returns:
        the result of defaultAction

      • visitTry

        public R visitTry​(TryTree node,
                  P p)
        Visits a TryTree node. This implementation calls defaultAction.
        Specified by:
        visitTry in interface TreeVisitor<R,​P>
        Parameters:
        node - the node being visited
        p - a parameter value
        Returns:
        the result of defaultAction

      • visitCatch

        public R visitCatch​(CatchTree node,
                    P p)
        Visits a CatchTree node. This implementation calls defaultAction.
        Specified by:
        visitCatch in interface TreeVisitor<R,​P>
        Parameters:
        node - the node being visited
        p - a parameter value
        Returns:
        the result of defaultAction

      • visitConditionalExpression

        public R visitConditionalExpression​(ConditionalExpressionTree node,
                                    P p)
        Visits a ConditionalExpressionTree node. This implementation calls defaultAction.
        Specified by:
        visitConditionalExpression in interface TreeVisitor<R,​P>
        Parameters:
        node - the node being visited
        p - a parameter value
        Returns:
        the result of defaultAction

      • visitIf

        public R visitIf​(IfTree node,
                 P p)
        Visits an IfTree node. This implementation calls defaultAction.
        Specified by:
        visitIf in interface TreeVisitor<R,​P>
        Parameters:
        node - the node being visited
        p - a parameter value
        Returns:
        the result of defaultAction

      • visitExpressionStatement

        public R visitExpressionStatement​(ExpressionStatementTree node,
                                  P p)
        Visits an ExpressionStatementTree node. This implementation calls defaultAction.
        Specified by:
        visitExpressionStatement in interface TreeVisitor<R,​P>
        Parameters:
        node - the node being visited
        p - a parameter value
        Returns:
        the result of defaultAction

      • visitBreak

        public R visitBreak​(BreakTree node,
                    P p)
        Visits a BreakTree node. This implementation calls defaultAction.
        Specified by:
        visitBreak in interface TreeVisitor<R,​P>
        Parameters:
        node - the node being visited
        p - a parameter value
        Returns:
        the result of defaultAction

      • visitContinue

        public R visitContinue​(ContinueTree node,
                       P p)
        Visits a ContinueTree node. This implementation calls defaultAction.
        Specified by:
        visitContinue in interface TreeVisitor<R,​P>
        Parameters:
        node - the node being visited
        p - a parameter value
        Returns:
        the result of defaultAction

      • visitReturn

        public R visitReturn​(ReturnTree node,
                     P p)
        Visits a ReturnTree node. This implementation calls defaultAction.
        Specified by:
        visitReturn in interface TreeVisitor<R,​P>
        Parameters:
        node - the node being visited
        p - a parameter value
        Returns:
        the result of defaultAction

      • visitThrow

        public R visitThrow​(ThrowTree node,
                    P p)
        Visits a ThrowTree node. This implementation calls defaultAction.
        Specified by:
        visitThrow in interface TreeVisitor<R,​P>
        Parameters:
        node - the node being visited
        p - a parameter value
        Returns:
        the result of defaultAction

      • visitAssert

        public R visitAssert​(AssertTree node,
                     P p)
        Visits an AssertTree node. This implementation calls defaultAction.
        Specified by:
        visitAssert in interface TreeVisitor<R,​P>
        Parameters:
        node - the node being visited
        p - a parameter value
        Returns:
        the result of defaultAction

      • visitMethodInvocation

        public R visitMethodInvocation​(MethodInvocationTree node,
                               P p)
        Visits a MethodInvocationTree node. This implementation calls defaultAction.
        Specified by:
        visitMethodInvocation in interface TreeVisitor<R,​P>
        Parameters:
        node - the node being visited
        p - a parameter value
        Returns:
        the result of defaultAction

      • visitNewClass

        public R visitNewClass​(NewClassTree node,
                       P p)
        Visits a NewClassTree node. This implementation calls defaultAction.
        Specified by:
        visitNewClass in interface TreeVisitor<R,​P>
        Parameters:
        node - the node being visited
        p - a parameter value
        Returns:
        the result of defaultAction

      • visitNewArray

        public R visitNewArray​(NewArrayTree node,
                       P p)
        Visits a NewArrayTree node. This implementation calls defaultAction.
        Specified by:
        visitNewArray in interface TreeVisitor<R,​P>
        Parameters:
        node - the node being visited
        p - a parameter value
        Returns:
        the result of defaultAction

      • visitLambdaExpression

        public R visitLambdaExpression​(LambdaExpressionTree node,
                               P p)
        Visits a LambdaExpressionTree node. This implementation calls defaultAction.
        Specified by:
        visitLambdaExpression in interface TreeVisitor<R,​P>
        Parameters:
        node - the node being visited
        p - a parameter value
        Returns:
        the result of defaultAction

      • visitParenthesized

        public R visitParenthesized​(ParenthesizedTree node,
                            P p)
        Visits a ParenthesizedTree node. This implementation calls defaultAction.
        Specified by:
        visitParenthesized in interface TreeVisitor<R,​P>
        Parameters:
        node - the node being visited
        p - a parameter value
        Returns:
        the result of defaultAction

      • visitAssignment

        public R visitAssignment​(AssignmentTree node,
                         P p)
        Visits an AssignmentTree node. This implementation calls defaultAction.
        Specified by:
        visitAssignment in interface TreeVisitor<R,​P>
        Parameters:
        node - the node being visited
        p - a parameter value
        Returns:
        the result of defaultAction

      • visitCompoundAssignment

        public R visitCompoundAssignment​(CompoundAssignmentTree node,
                                 P p)
        Visits a CompoundAssignmentTree node. This implementation calls defaultAction.
        Specified by:
        visitCompoundAssignment in interface TreeVisitor<R,​P>
        Parameters:
        node - the node being visited
        p - a parameter value
        Returns:
        the result of defaultAction

      • visitUnary

        public R visitUnary​(UnaryTree node,
                    P p)
        Visits a UnaryTree node. This implementation calls defaultAction.
        Specified by:
        visitUnary in interface TreeVisitor<R,​P>
        Parameters:
        node - the node being visited
        p - a parameter value
        Returns:
        the result of defaultAction

      • visitBinary

        public R visitBinary​(BinaryTree node,
                     P p)
        Visits a BinaryTree node. This implementation calls defaultAction.
        Specified by:
        visitBinary in interface TreeVisitor<R,​P>
        Parameters:
        node - the node being visited
        p - a parameter value
        Returns:
        the result of defaultAction

      • visitTypeCast

        public R visitTypeCast​(TypeCastTree node,
                       P p)
        Visits a TypeCastTree node. This implementation calls defaultAction.
        Specified by:
        visitTypeCast in interface TreeVisitor<R,​P>
        Parameters:
        node - the node being visited
        p - a parameter value
        Returns:
        the result of defaultAction

      • visitInstanceOf

        public R visitInstanceOf​(InstanceOfTree node,
                         P p)
        Visits an InstanceOfTree node. This implementation calls defaultAction.
        Specified by:
        visitInstanceOf in interface TreeVisitor<R,​P>
        Parameters:
        node - the node being visited
        p - a parameter value
        Returns:
        the result of defaultAction

      • visitArrayAccess

        public R visitArrayAccess​(ArrayAccessTree node,
                          P p)
        Visits an ArrayAccessTree node. This implementation calls defaultAction.
        Specified by:
        visitArrayAccess in interface TreeVisitor<R,​P>
        Parameters:
        node - the node being visited
        p - a parameter value
        Returns:
        the result of defaultAction

      • visitMemberSelect

        public R visitMemberSelect​(MemberSelectTree node,
                           P p)
        Visits a MemberSelectTree node. This implementation calls defaultAction.
        Specified by:
        visitMemberSelect in interface TreeVisitor<R,​P>
        Parameters:
        node - the node being visited
        p - a parameter value
        Returns:
        the result of defaultAction

      • visitMemberReference

        public R visitMemberReference​(MemberReferenceTree node,
                              P p)
        Visits a MemberReferenceTree node. This implementation calls defaultAction.
        Specified by:
        visitMemberReference in interface TreeVisitor<R,​P>
        Parameters:
        node - the node being visited
        p - a parameter value
        Returns:
        the result of defaultAction

      • visitIdentifier

        public R visitIdentifier​(IdentifierTree node,
                         P p)
        Visits an IdentifierTree node. This implementation calls defaultAction.
        Specified by:
        visitIdentifier in interface TreeVisitor<R,​P>
        Parameters:
        node - the node being visited
        p - a parameter value
        Returns:
        the result of defaultAction

      • visitLiteral

        public R visitLiteral​(LiteralTree node,
                      P p)
        Visits a LiteralTree node. This implementation calls defaultAction.
        Specified by:
        visitLiteral in interface TreeVisitor<R,​P>
        Parameters:
        node - the node being visited
        p - a parameter value
        Returns:
        the result of defaultAction

      • visitPrimitiveType

        public R visitPrimitiveType​(PrimitiveTypeTree node,
                            P p)
        Visits a PrimitiveTypeTree node. This implementation calls defaultAction.
        Specified by:
        visitPrimitiveType in interface TreeVisitor<R,​P>
        Parameters:
        node - the node being visited
        p - a parameter value
        Returns:
        the result of defaultAction

      • visitArrayType

        public R visitArrayType​(ArrayTypeTree node,
                        P p)
        Visits an ArrayTypeTree node. This implementation calls defaultAction.
        Specified by:
        visitArrayType in interface TreeVisitor<R,​P>
        Parameters:
        node - the node being visited
        p - a parameter value
        Returns:
        the result of defaultAction

      • visitParameterizedType

        public R visitParameterizedType​(ParameterizedTypeTree node,
                                P p)
        Visits a ParameterizedTypeTree node. This implementation calls defaultAction.
        Specified by:
        visitParameterizedType in interface TreeVisitor<R,​P>
        Parameters:
        node - the node being visited
        p - a parameter value
        Returns:
        the result of defaultAction

      • visitUnionType

        public R visitUnionType​(UnionTypeTree node,
                        P p)
        Visits a UnionTypeTree node. This implementation calls defaultAction.
        Specified by:
        visitUnionType in interface TreeVisitor<R,​P>
        Parameters:
        node - the node being visited
        p - a parameter value
        Returns:
        the result of defaultAction

      • visitIntersectionType

        public R visitIntersectionType​(IntersectionTypeTree node,
                               P p)
        Visits an IntersectionTypeTree node. This implementation calls defaultAction.
        Specified by:
        visitIntersectionType in interface TreeVisitor<R,​P>
        Parameters:
        node - the node being visited
        p - a parameter value
        Returns:
        the result of defaultAction

      • visitTypeParameter

        public R visitTypeParameter​(TypeParameterTree node,
                            P p)
        Visits a TypeParameterTree node. This implementation calls defaultAction.
        Specified by:
        visitTypeParameter in interface TreeVisitor<R,​P>
        Parameters:
        node - the node being visited
        p - a parameter value
        Returns:
        the result of defaultAction

      • visitWildcard

        public R visitWildcard​(WildcardTree node,
                       P p)
        Visits a WildcardTypeTree node. This implementation calls defaultAction.
        Specified by:
        visitWildcard in interface TreeVisitor<R,​P>
        Parameters:
        node - the node being visited
        p - a parameter value
        Returns:
        the result of defaultAction

      • visitModifiers

        public R visitModifiers​(ModifiersTree node,
                        P p)
        Visits a ModifiersTree node. This implementation calls defaultAction.
        Specified by:
        visitModifiers in interface TreeVisitor<R,​P>
        Parameters:
        node - the node being visited
        p - a parameter value
        Returns:
        the result of defaultAction

      • visitAnnotation

        public R visitAnnotation​(AnnotationTree node,
                         P p)
        Visits an AnnotatedTree node. This implementation calls defaultAction.
        Specified by:
        visitAnnotation in interface TreeVisitor<R,​P>
        Parameters:
        node - the node being visited
        p - a parameter value
        Returns:
        the result of defaultAction

      • visitAnnotatedType

        public R visitAnnotatedType​(AnnotatedTypeTree node,
                            P p)
        Visits an AnnotatedTypeTree node. This implementation calls defaultAction.
        Specified by:
        visitAnnotatedType in interface TreeVisitor<R,​P>
        Parameters:
        node - the node being visited
        p - a parameter value
        Returns:
        the result of defaultAction

      • visitOther

        public R visitOther​(Tree node,
                    P p)
        Visits an unknown type of Tree node. This can occur if the language evolves and new kinds of nodes are added to the Tree hierarchy. This implementation calls defaultAction.
        Specified by:
        visitOther in interface TreeVisitor<R,​P>
        Parameters:
        node - the node being visited
        p - a parameter value
        Returns:
        the result of defaultAction