| /* |
| * 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 freemarker.core; |
| |
| import freemarker.template.TemplateException; |
| |
| final class AndExpression extends BooleanExpression { |
| |
| private final Expression lho; |
| private final Expression rho; |
| |
| AndExpression(Expression lho, Expression rho) { |
| this.lho = lho; |
| this.rho = rho; |
| } |
| |
| @Override |
| boolean evalToBoolean(Environment env) throws TemplateException { |
| return lho.evalToBoolean(env) && rho.evalToBoolean(env); |
| } |
| |
| @Override |
| public String getCanonicalForm() { |
| return lho.getCanonicalForm() + " && " + rho.getCanonicalForm(); |
| } |
| |
| @Override |
| String getNodeTypeSymbol() { |
| return "&&"; |
| } |
| |
| @Override |
| boolean isLiteral() { |
| return constantValue != null || (lho.isLiteral() && rho.isLiteral()); |
| } |
| |
| @Override |
| protected Expression deepCloneWithIdentifierReplaced_inner( |
| String replacedIdentifier, Expression replacement, ReplacemenetState replacementState) { |
| return new AndExpression( |
| lho.deepCloneWithIdentifierReplaced(replacedIdentifier, replacement, replacementState), |
| rho.deepCloneWithIdentifierReplaced(replacedIdentifier, replacement, replacementState)); |
| } |
| |
| @Override |
| int getParameterCount() { |
| return 2; |
| } |
| |
| @Override |
| Object getParameterValue(int idx) { |
| switch (idx) { |
| case 0: return lho; |
| case 1: return rho; |
| default: throw new IndexOutOfBoundsException(); |
| } |
| } |
| |
| @Override |
| ParameterRole getParameterRole(int idx) { |
| return ParameterRole.forBinaryOperatorOperand(idx); |
| } |
| |
| } |