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FreeMarker is a "template engine"; a generic tool to generate text output based on templates.
/*
* 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.SimpleNumber;
import freemarker.template.TemplateException;
import freemarker.template.TemplateModel;
import freemarker.template.TemplateNumberModel;
/**
* A simple implementation of the TemplateNumberModel
* interface. Note that this class is immutable.
*/
final class NumberLiteral extends Expression implements TemplateNumberModel {
private final Number value;
public NumberLiteral(Number value) {
this.value = value;
}
@Override
TemplateModel _eval(Environment env) {
return new SimpleNumber(value);
}
@Override
public String evalAndCoerceToPlainText(Environment env) throws TemplateException {
return env.formatNumberToPlainText(this, this, false);
}
public Number getAsNumber() {
return value;
}
String getName() {
return "the number: '" + value + "'";
}
@Override
public String getCanonicalForm() {
return value.toString();
}
@Override
String getNodeTypeSymbol() {
return getCanonicalForm();
}
@Override
boolean isLiteral() {
return true;
}
@Override
protected Expression deepCloneWithIdentifierReplaced_inner(
String replacedIdentifier, Expression replacement, ReplacemenetState replacementState) {
return new NumberLiteral(value);
}
@Override
int getParameterCount() {
return 0;
}
@Override
Object getParameterValue(int idx) {
throw new IndexOutOfBoundsException();
}
@Override
ParameterRole getParameterRole(int idx) {
throw new IndexOutOfBoundsException();
}
}
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