| /******************************************************************************* |
| * 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. |
| ******************************************************************************/ |
| package org.apache.sling.scripting.sightly.compiler.expression; |
| |
| import org.apache.sling.scripting.sightly.compiler.expression.nodes.ArrayLiteral; |
| import org.apache.sling.scripting.sightly.compiler.expression.nodes.BinaryOperation; |
| import org.apache.sling.scripting.sightly.compiler.expression.nodes.BooleanConstant; |
| import org.apache.sling.scripting.sightly.compiler.expression.nodes.Identifier; |
| import org.apache.sling.scripting.sightly.compiler.expression.nodes.MapLiteral; |
| import org.apache.sling.scripting.sightly.compiler.expression.nodes.NullLiteral; |
| import org.apache.sling.scripting.sightly.compiler.expression.nodes.NumericConstant; |
| import org.apache.sling.scripting.sightly.compiler.expression.nodes.PropertyAccess; |
| import org.apache.sling.scripting.sightly.compiler.expression.nodes.RuntimeCall; |
| import org.apache.sling.scripting.sightly.compiler.expression.nodes.StringConstant; |
| import org.apache.sling.scripting.sightly.compiler.expression.nodes.TernaryOperator; |
| import org.apache.sling.scripting.sightly.compiler.expression.nodes.UnaryOperation; |
| |
| /** |
| * Expression visitor which does not return anything for nodes; instead it performs specific side-effects depending on the expression |
| * nodes types. |
| */ |
| public abstract class SideEffectVisitor implements NodeVisitor<Object> { |
| |
| public abstract void visit(PropertyAccess propertyAccess); |
| |
| public abstract void visit(Identifier identifier); |
| |
| public abstract void visit(StringConstant text); |
| |
| public abstract void visit(BinaryOperation binaryOperation); |
| |
| public abstract void visit(BooleanConstant booleanConstant); |
| |
| public abstract void visit(NumericConstant numericConstant); |
| |
| public abstract void visit(UnaryOperation unaryOperation); |
| |
| public abstract void visit(TernaryOperator ternaryOperator); |
| |
| public abstract void visit(RuntimeCall runtimeCall); |
| |
| public abstract void visit(MapLiteral mapLiteral); |
| |
| public abstract void visit(ArrayLiteral arrayLiteral); |
| |
| public abstract void visit(NullLiteral nullLiteral); |
| |
| @Override |
| public Object evaluate(PropertyAccess propertyAccess) { |
| visit(propertyAccess); |
| return null; |
| } |
| |
| @Override |
| public Object evaluate(Identifier identifier) { |
| visit(identifier); |
| return null; |
| } |
| |
| @Override |
| public Object evaluate(StringConstant text) { |
| visit(text); |
| return null; |
| } |
| |
| @Override |
| public Object evaluate(BinaryOperation binaryOperation) { |
| visit(binaryOperation); |
| return null; |
| } |
| |
| @Override |
| public Object evaluate(BooleanConstant booleanConstant) { |
| visit(booleanConstant); |
| return null; |
| } |
| |
| @Override |
| public Object evaluate(NumericConstant numericConstant) { |
| visit(numericConstant); |
| return null; |
| } |
| |
| @Override |
| public Object evaluate(UnaryOperation unaryOperation) { |
| visit(unaryOperation); |
| return null; |
| } |
| |
| @Override |
| public Object evaluate(TernaryOperator ternaryOperator) { |
| visit(ternaryOperator); |
| return null; |
| } |
| |
| @Override |
| public Object evaluate(RuntimeCall runtimeCall) { |
| visit(runtimeCall); |
| return null; |
| } |
| |
| @Override |
| public Object evaluate(MapLiteral mapLiteral) { |
| visit(mapLiteral); |
| return null; |
| } |
| |
| @Override |
| public Object evaluate(ArrayLiteral arrayLiteral) { |
| visit(arrayLiteral); |
| return null; |
| } |
| |
| @Override |
| public Object evaluate(NullLiteral nullLiteral) { |
| visit(nullLiteral); |
| return null; |
| } |
| } |
| |