diff options
Diffstat (limited to 'velocity-engine-core/src/main/java/org/apache/velocity/runtime/visitor/BaseVisitor.java')
-rw-r--r-- | velocity-engine-core/src/main/java/org/apache/velocity/runtime/visitor/BaseVisitor.java | 494 |
1 files changed, 494 insertions, 0 deletions
diff --git a/velocity-engine-core/src/main/java/org/apache/velocity/runtime/visitor/BaseVisitor.java b/velocity-engine-core/src/main/java/org/apache/velocity/runtime/visitor/BaseVisitor.java new file mode 100644 index 00000000..397a3cd6 --- /dev/null +++ b/velocity-engine-core/src/main/java/org/apache/velocity/runtime/visitor/BaseVisitor.java @@ -0,0 +1,494 @@ +package org.apache.velocity.runtime.visitor; + +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ + +import org.apache.velocity.context.InternalContextAdapter; +import org.apache.velocity.runtime.parser.node.*; + +import java.io.Writer; + +/** + * This is the base class for all visitors. + * For each AST node, this class will provide + * a bare-bones method for traversal. + * + * @author <a href="mailto:jvanzyl@apache.org">Jason van Zyl</a> + * @author <a href="mailto:geirm@optonline.net">Geir Magnusson Jr.</a> + * @version $Id$ + */ +public abstract class BaseVisitor implements ParserVisitor +{ + /** Context used during traversal */ + protected InternalContextAdapter context; + + /** Writer used as the output sink */ + protected Writer writer; + + /** + * @param writer + */ + public void setWriter( Writer writer ) + { + this.writer = writer; + } + + /** + * @param context + */ + public void setContext( InternalContextAdapter context) + { + this.context = context; + } + + /** + * @see org.apache.velocity.runtime.parser.node.ParserVisitor#visit(org.apache.velocity.runtime.parser.node.SimpleNode, java.lang.Object) + */ + @Override + public Object visit(SimpleNode node, Object data) + { + data = node.childrenAccept(this, data); + return data; + } + + /** + * @see org.apache.velocity.runtime.parser.node.ParserVisitor#visit(org.apache.velocity.runtime.parser.node.ASTprocess, java.lang.Object) + */ + @Override + public Object visit(ASTprocess node, Object data) + { + data = node.childrenAccept(this, data); + return data; + } + + /** + * @see org.apache.velocity.runtime.parser.node.ParserVisitor#visit(org.apache.velocity.runtime.parser.node.ASTExpression, java.lang.Object) + */ + @Override + public Object visit(ASTExpression node, Object data) + { + data = node.childrenAccept(this, data); + return data; + } + + /** + * @see org.apache.velocity.runtime.parser.node.ParserVisitor#visit(org.apache.velocity.runtime.parser.node.ASTAssignment, java.lang.Object) + */ + @Override + public Object visit(ASTAssignment node, Object data) + { + data = node.childrenAccept(this, data); + return data; + } + + /** + * @see org.apache.velocity.runtime.parser.node.ParserVisitor#visit(org.apache.velocity.runtime.parser.node.ASTOrNode, java.lang.Object) + */ + @Override + public Object visit(ASTOrNode node, Object data) + { + data = node.childrenAccept(this, data); + return data; + } + + /** + * @see org.apache.velocity.runtime.parser.node.ParserVisitor#visit(org.apache.velocity.runtime.parser.node.ASTAndNode, java.lang.Object) + */ + @Override + public Object visit(ASTAndNode node, Object data) + { + data = node.childrenAccept(this, data); + return data; + } + + /** + * @see org.apache.velocity.runtime.parser.node.ParserVisitor#visit(org.apache.velocity.runtime.parser.node.ASTEQNode, java.lang.Object) + */ + @Override + public Object visit(ASTEQNode node, Object data) + { + data = node.childrenAccept(this, data); + return data; + } + + /** + * @see org.apache.velocity.runtime.parser.node.ParserVisitor#visit(org.apache.velocity.runtime.parser.node.ASTNENode, java.lang.Object) + */ + @Override + public Object visit(ASTNENode node, Object data) + { + data = node.childrenAccept(this, data); + return data; + } + + /** + * @see org.apache.velocity.runtime.parser.node.ParserVisitor#visit(org.apache.velocity.runtime.parser.node.ASTLTNode, java.lang.Object) + */ + @Override + public Object visit(ASTLTNode node, Object data) + { + data = node.childrenAccept(this, data); + return data; + } + + /** + * @see org.apache.velocity.runtime.parser.node.ParserVisitor#visit(org.apache.velocity.runtime.parser.node.ASTGTNode, java.lang.Object) + */ + @Override + public Object visit(ASTGTNode node, Object data) + { + data = node.childrenAccept(this, data); + return data; + } + + /** + * @see org.apache.velocity.runtime.parser.node.ParserVisitor#visit(org.apache.velocity.runtime.parser.node.ASTLENode, java.lang.Object) + */ + @Override + public Object visit(ASTLENode node, Object data) + { + data = node.childrenAccept(this, data); + return data; + } + + /** + * @see org.apache.velocity.runtime.parser.node.ParserVisitor#visit(org.apache.velocity.runtime.parser.node.ASTGENode, java.lang.Object) + */ + @Override + public Object visit(ASTGENode node, Object data) + { + data = node.childrenAccept(this, data); + return data; + } + + /** + * @see org.apache.velocity.runtime.parser.node.ParserVisitor#visit(org.apache.velocity.runtime.parser.node.ASTAddNode, java.lang.Object) + */ + @Override + public Object visit(ASTAddNode node, Object data) + { + data = node.childrenAccept(this, data); + return data; + } + + /** + * @see org.apache.velocity.runtime.parser.node.ParserVisitor#visit(org.apache.velocity.runtime.parser.node.ASTSubtractNode, java.lang.Object) + */ + @Override + public Object visit(ASTSubtractNode node, Object data) + { + data = node.childrenAccept(this, data); + return data; + } + + /** + * @see org.apache.velocity.runtime.parser.node.ParserVisitor#visit(org.apache.velocity.runtime.parser.node.ASTMulNode, java.lang.Object) + */ + @Override + public Object visit(ASTMulNode node, Object data) + { + data = node.childrenAccept(this, data); + return data; + } + + /** + * @see org.apache.velocity.runtime.parser.node.ParserVisitor#visit(org.apache.velocity.runtime.parser.node.ASTDivNode, java.lang.Object) + */ + @Override + public Object visit(ASTDivNode node, Object data) + { + data = node.childrenAccept(this, data); + return data; + } + + /** + * @see org.apache.velocity.runtime.parser.node.ParserVisitor#visit(org.apache.velocity.runtime.parser.node.ASTModNode, java.lang.Object) + */ + @Override + public Object visit(ASTModNode node, Object data) + { + data = node.childrenAccept(this, data); + return data; + } + + /** + * @see org.apache.velocity.runtime.parser.node.ParserVisitor#visit(org.apache.velocity.runtime.parser.node.ASTNotNode, java.lang.Object) + */ + @Override + public Object visit(ASTNotNode node, Object data) + { + data = node.childrenAccept(this, data); + return data; + } + + /** + * @see org.apache.velocity.runtime.parser.node.ParserVisitor#visit(org.apache.velocity.runtime.parser.node.ASTIntegerLiteral, java.lang.Object) + */ + @Override + public Object visit(ASTIntegerLiteral node, Object data) + { + data = node.childrenAccept(this, data); + return data; + } + + /** + * @see org.apache.velocity.runtime.parser.node.ParserVisitor#visit(org.apache.velocity.runtime.parser.node.ASTFloatingPointLiteral, java.lang.Object) + * @since 1.5 + */ + @Override + public Object visit(ASTFloatingPointLiteral node, Object data) + { + data = node.childrenAccept(this, data); + return data; + } + + /** + * @see org.apache.velocity.runtime.parser.node.ParserVisitor#visit(org.apache.velocity.runtime.parser.node.ASTStringLiteral, java.lang.Object) + */ + @Override + public Object visit(ASTStringLiteral node, Object data) + { + data = node.childrenAccept(this, data); + return data; + } + + /** + * @see org.apache.velocity.runtime.parser.node.ParserVisitor#visit(org.apache.velocity.runtime.parser.node.ASTIdentifier, java.lang.Object) + */ + @Override + public Object visit(ASTIdentifier node, Object data) + { + data = node.childrenAccept(this, data); + return data; + } + + /** + * @see org.apache.velocity.runtime.parser.node.ParserVisitor#visit(org.apache.velocity.runtime.parser.node.ASTMethod, java.lang.Object) + */ + @Override + public Object visit(ASTMethod node, Object data) + { + data = node.childrenAccept(this, data); + return data; + } + + /** + * @see org.apache.velocity.runtime.parser.node.ParserVisitor#visit(org.apache.velocity.runtime.parser.node.ASTIndex, java.lang.Object) + */ + @Override + public Object visit(ASTIndex node, Object data) + { + data = node.childrenAccept(this, data); + return data; + } + + /** + * @see org.apache.velocity.runtime.parser.node.ParserVisitor#visit(org.apache.velocity.runtime.parser.node.ASTReference, java.lang.Object) + */ + @Override + public Object visit(ASTReference node, Object data) + { + data = node.childrenAccept(this, data); + return data; + } + + /** + * @see org.apache.velocity.runtime.parser.node.ParserVisitor#visit(org.apache.velocity.runtime.parser.node.ASTTrue, java.lang.Object) + */ + @Override + public Object visit(ASTTrue node, Object data) + { + data = node.childrenAccept(this, data); + return data; + } + + /** + * @see org.apache.velocity.runtime.parser.node.ParserVisitor#visit(org.apache.velocity.runtime.parser.node.ASTFalse, java.lang.Object) + */ + @Override + public Object visit(ASTFalse node, Object data) + { + data = node.childrenAccept(this, data); + return data; + } + + /** + * @see org.apache.velocity.runtime.parser.node.ParserVisitor#visit(org.apache.velocity.runtime.parser.node.ASTBlock, java.lang.Object) + */ + @Override + public Object visit(ASTBlock node, Object data) + { + data = node.childrenAccept(this, data); + return data; + } + + /** + * @see org.apache.velocity.runtime.parser.node.ParserVisitor#visit(org.apache.velocity.runtime.parser.node.ASTText, java.lang.Object) + */ + @Override + public Object visit(ASTText node, Object data) + { + data = node.childrenAccept(this, data); + return data; + } + + /** + * @see org.apache.velocity.runtime.parser.node.ParserVisitor#visit(org.apache.velocity.runtime.parser.node.ASTIfStatement, java.lang.Object) + */ + @Override + public Object visit(ASTIfStatement node, Object data) + { + data = node.childrenAccept(this, data); + return data; + } + + /** + * @see org.apache.velocity.runtime.parser.node.ParserVisitor#visit(org.apache.velocity.runtime.parser.node.ASTElseStatement, java.lang.Object) + */ + @Override + public Object visit(ASTElseStatement node, Object data) + { + data = node.childrenAccept(this, data); + return data; + } + + /** + * @see org.apache.velocity.runtime.parser.node.ParserVisitor#visit(org.apache.velocity.runtime.parser.node.ASTElseIfStatement, java.lang.Object) + */ + @Override + public Object visit(ASTElseIfStatement node, Object data) + { + data = node.childrenAccept(this, data); + return data; + } + + /** + * @see org.apache.velocity.runtime.parser.node.ParserVisitor#visit(org.apache.velocity.runtime.parser.node.ASTComment, java.lang.Object) + */ + @Override + public Object visit(ASTComment node, Object data) + { + data = node.childrenAccept(this, data); + return data; + } + + /** + * @see org.apache.velocity.runtime.parser.node.ParserVisitor#visit(org.apache.velocity.runtime.parser.node.ASTTextblock, java.lang.Object) + */ + @Override + public Object visit(ASTTextblock node, Object data) + { + data = node.childrenAccept(this, data); + return data; + } + + /** + * @see org.apache.velocity.runtime.parser.node.ParserVisitor#visit(org.apache.velocity.runtime.parser.node.ASTObjectArray, java.lang.Object) + */ + @Override + public Object visit(ASTObjectArray node, Object data) + { + data = node.childrenAccept(this, data); + return data; + } + + /** + * @see org.apache.velocity.runtime.parser.node.ParserVisitor#visit(org.apache.velocity.runtime.parser.node.ASTWord, java.lang.Object) + */ + @Override + public Object visit(ASTWord node, Object data) + { + data = node.childrenAccept(this, data); + return data; + } + + /** + * @see org.apache.velocity.runtime.parser.node.ParserVisitor#visit(org.apache.velocity.runtime.parser.node.ASTSetDirective, java.lang.Object) + */ + @Override + public Object visit(ASTSetDirective node, Object data) + { + data = node.childrenAccept(this, data); + return data; + } + + /** + * @see org.apache.velocity.runtime.parser.node.ParserVisitor#visit(org.apache.velocity.runtime.parser.node.ASTDirectiveAssign, java.lang.Object) + */ + @Override + public Object visit(ASTDirectiveAssign node, Object data) + { + data = node.childrenAccept(this, data); + return data; + } + + /** + * @see org.apache.velocity.runtime.parser.node.ParserVisitor#visit(org.apache.velocity.runtime.parser.node.ASTDirective, java.lang.Object) + */ + @Override + public Object visit(ASTDirective node, Object data) + { + data = node.childrenAccept(this, data); + return data; + } + + /** + * @see org.apache.velocity.runtime.parser.node.ParserVisitor#visit(org.apache.velocity.runtime.parser.node.ASTEscapedDirective, java.lang.Object) + * @since 1.5 + */ + @Override + public Object visit(ASTEscapedDirective node, Object data) + { + data = node.childrenAccept(this, data); + return data; + } + + /** + * @see org.apache.velocity.runtime.parser.node.ParserVisitor#visit(org.apache.velocity.runtime.parser.node.ASTEscape, java.lang.Object) + * @since 1.5 + */ + @Override + public Object visit(ASTEscape node, Object data) + { + data = node.childrenAccept(this, data); + return data; + } + + /** + * @see org.apache.velocity.runtime.parser.node.ParserVisitor#visit(org.apache.velocity.runtime.parser.node.ASTMap, java.lang.Object) + * @since 1.5 + */ + @Override + public Object visit(ASTMap node, Object data) + { + data = node.childrenAccept(this, data); + return data; + } + + /** + * @see org.apache.velocity.runtime.parser.node.ParserVisitor#visit(org.apache.velocity.runtime.parser.node.ASTIntegerRange, java.lang.Object) + * @since 1.5 + */ + @Override + public Object visit(ASTIntegerRange node, Object data) + { + data = node.childrenAccept(this, data); + return data; + } +} |