freemarker.core.FallbackInstruction Maven / Gradle / Ivy
/*
* 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 java.io.IOException;
import freemarker.template.TemplateException;
final class FallbackInstruction extends TemplateElement {
@Override
TemplateElement[] accept(Environment env) throws IOException, TemplateException {
env.fallback();
return null;
}
@Override
protected String dump(boolean canonical) {
return canonical ? "<" + getNodeTypeSymbol() + "/>" : getNodeTypeSymbol();
}
@Override
String getNodeTypeSymbol() {
return "#fallback";
}
@Override
int getParameterCount() {
return 0;
}
@Override
Object getParameterValue(int idx) {
throw new IndexOutOfBoundsException();
}
@Override
ParameterRole getParameterRole(int idx) {
throw new IndexOutOfBoundsException();
}
@Override
boolean isNestedBlockRepeater() {
return false;
}
@Override
boolean isShownInStackTrace() {
return true;
}
}