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/*
* Copyright (c) 2005, 2013, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package com.sun.source.util;
import com.sun.source.tree.*;
/**
* A simple visitor for tree nodes.
*
* @author Peter von der Ahé
* @since 1.6
*/
@jdk.Exported
public class SimpleTreeVisitor implements TreeVisitor {
protected final R DEFAULT_VALUE;
protected SimpleTreeVisitor() {
DEFAULT_VALUE = null;
}
protected SimpleTreeVisitor(R defaultValue) {
DEFAULT_VALUE = defaultValue;
}
protected R defaultAction(Tree node, P p) {
return DEFAULT_VALUE;
}
public final R visit(Tree node, P p) {
return (node == null) ? null : node.accept(this, p);
}
public final R visit(Iterable nodes, P p) {
R r = null;
if (nodes != null)
for (Tree node : nodes)
r = visit(node, p);
return r;
}
public R visitCompilationUnit(CompilationUnitTree node, P p) {
return defaultAction(node, p);
}
public R visitImport(ImportTree node, P p) {
return defaultAction(node, p);
}
public R visitClass(ClassTree node, P p) {
return defaultAction(node, p);
}
public R visitMethod(MethodTree node, P p) {
return defaultAction(node, p);
}
public R visitVariable(VariableTree node, P p) {
return defaultAction(node, p);
}
public R visitEmptyStatement(EmptyStatementTree node, P p) {
return defaultAction(node, p);
}
public R visitBlock(BlockTree node, P p) {
return defaultAction(node, p);
}
public R visitDoWhileLoop(DoWhileLoopTree node, P p) {
return defaultAction(node, p);
}
public R visitWhileLoop(WhileLoopTree node, P p) {
return defaultAction(node, p);
}
public R visitForLoop(ForLoopTree node, P p) {
return defaultAction(node, p);
}
public R visitEnhancedForLoop(EnhancedForLoopTree node, P p) {
return defaultAction(node, p);
}
public R visitLabeledStatement(LabeledStatementTree node, P p) {
return defaultAction(node, p);
}
public R visitSwitch(SwitchTree node, P p) {
return defaultAction(node, p);
}
public R visitCase(CaseTree node, P p) {
return defaultAction(node, p);
}
public R visitSynchronized(SynchronizedTree node, P p) {
return defaultAction(node, p);
}
public R visitTry(TryTree node, P p) {
return defaultAction(node, p);
}
public R visitCatch(CatchTree node, P p) {
return defaultAction(node, p);
}
public R visitConditionalExpression(ConditionalExpressionTree node, P p) {
return defaultAction(node, p);
}
public R visitIf(IfTree node, P p) {
return defaultAction(node, p);
}
public R visitExpressionStatement(ExpressionStatementTree node, P p) {
return defaultAction(node, p);
}
public R visitBreak(BreakTree node, P p) {
return defaultAction(node, p);
}
public R visitContinue(ContinueTree node, P p) {
return defaultAction(node, p);
}
public R visitReturn(ReturnTree node, P p) {
return defaultAction(node, p);
}
public R visitThrow(ThrowTree node, P p) {
return defaultAction(node, p);
}
public R visitAssert(AssertTree node, P p) {
return defaultAction(node, p);
}
public R visitMethodInvocation(MethodInvocationTree node, P p) {
return defaultAction(node, p);
}
public R visitNewClass(NewClassTree node, P p) {
return defaultAction(node, p);
}
public R visitNewArray(NewArrayTree node, P p) {
return defaultAction(node, p);
}
public R visitLambdaExpression(LambdaExpressionTree node, P p) {
return defaultAction(node, p);
}
public R visitParenthesized(ParenthesizedTree node, P p) {
return defaultAction(node, p);
}
public R visitAssignment(AssignmentTree node, P p) {
return defaultAction(node, p);
}
public R visitCompoundAssignment(CompoundAssignmentTree node, P p) {
return defaultAction(node, p);
}
public R visitUnary(UnaryTree node, P p) {
return defaultAction(node, p);
}
public R visitBinary(BinaryTree node, P p) {
return defaultAction(node, p);
}
public R visitTypeCast(TypeCastTree node, P p) {
return defaultAction(node, p);
}
public R visitInstanceOf(InstanceOfTree node, P p) {
return defaultAction(node, p);
}
public R visitArrayAccess(ArrayAccessTree node, P p) {
return defaultAction(node, p);
}
public R visitMemberSelect(MemberSelectTree node, P p) {
return defaultAction(node, p);
}
public R visitMemberReference(MemberReferenceTree node, P p) {
return defaultAction(node, p);
}
public R visitIdentifier(IdentifierTree node, P p) {
return defaultAction(node, p);
}
public R visitLiteral(LiteralTree node, P p) {
return defaultAction(node, p);
}
public R visitPrimitiveType(PrimitiveTypeTree node, P p) {
return defaultAction(node, p);
}
public R visitArrayType(ArrayTypeTree node, P p) {
return defaultAction(node, p);
}
public R visitParameterizedType(ParameterizedTypeTree node, P p) {
return defaultAction(node, p);
}
public R visitUnionType(UnionTypeTree node, P p) {
return defaultAction(node, p);
}
public R visitIntersectionType(IntersectionTypeTree node, P p) {
return defaultAction(node, p);
}
public R visitTypeParameter(TypeParameterTree node, P p) {
return defaultAction(node, p);
}
public R visitWildcard(WildcardTree node, P p) {
return defaultAction(node, p);
}
public R visitModifiers(ModifiersTree node, P p) {
return defaultAction(node, p);
}
public R visitAnnotation(AnnotationTree node, P p) {
return defaultAction(node, p);
}
public R visitAnnotatedType(AnnotatedTypeTree node, P p) {
return defaultAction(node, p);
}
public R visitErroneous(ErroneousTree node, P p) {
return defaultAction(node, p);
}
public R visitOther(Tree node, P p) {
return defaultAction(node, p);
}
}