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Show all versions of com.liferay.portal.template.freemarker
Show all versions of com.liferay.portal.template.freemarker
Liferay Portal Template FreeMarker
/*
* 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.
*/
/*
* 22 October 1999: This class added by Holger Arendt.
*/
package freemarker.core;
import java.util.ArrayList;
import java.util.List;
import freemarker.template.TemplateException;
import freemarker.template.TemplateMethodModel;
import freemarker.template.TemplateMethodModelEx;
import freemarker.template.TemplateModel;
/**
* A unary operator that calls a TemplateMethodModel. It associates with the
* Identifier or Dot to its left.
*/
final class MethodCall extends Expression {
private final Expression target;
private final ListLiteral arguments;
MethodCall(Expression target, ArrayList arguments) {
this(target, new ListLiteral(arguments));
}
private MethodCall(Expression target, ListLiteral arguments) {
this.target = target;
this.arguments = arguments;
}
@Override
TemplateModel _eval(Environment env) throws TemplateException {
TemplateModel targetModel = target.eval(env);
if (targetModel instanceof TemplateMethodModel) {
TemplateMethodModel targetMethod = (TemplateMethodModel) targetModel;
List argumentStrings =
targetMethod instanceof TemplateMethodModelEx
? arguments.getModelList(env)
: arguments.getValueList(env);
Object result = targetMethod.exec(argumentStrings);
return env.getObjectWrapper().wrap(result);
} else if (targetModel instanceof Macro) {
return env.invokeFunction(env, (Macro) targetModel, arguments.items, this);
} else {
throw new NonMethodException(target, targetModel, true, false, null, env);
}
}
@Override
public String getCanonicalForm() {
StringBuilder buf = new StringBuilder();
buf.append(target.getCanonicalForm());
buf.append("(");
String list = arguments.getCanonicalForm();
buf.append(list.substring(1, list.length() - 1));
buf.append(")");
return buf.toString();
}
@Override
String getNodeTypeSymbol() {
return "...(...)";
}
TemplateModel getConstantValue() {
return null;
}
@Override
boolean isLiteral() {
return false;
}
@Override
protected Expression deepCloneWithIdentifierReplaced_inner(
String replacedIdentifier, Expression replacement, ReplacemenetState replacementState) {
return new MethodCall(
target.deepCloneWithIdentifierReplaced(replacedIdentifier, replacement, replacementState),
(ListLiteral) arguments.deepCloneWithIdentifierReplaced(replacedIdentifier, replacement, replacementState));
}
@Override
int getParameterCount() {
return 1 + arguments.items.size();
}
Expression getTarget() {
return target;
}
@Override
Object getParameterValue(int idx) {
if (idx == 0) {
return target;
} else if (idx < getParameterCount()) {
return arguments.items.get(idx - 1);
} else {
throw new IndexOutOfBoundsException();
}
}
@Override
ParameterRole getParameterRole(int idx) {
if (idx == 0) {
return ParameterRole.CALLEE;
} else if (idx < getParameterCount()) {
return ParameterRole.ARGUMENT_VALUE;
} else {
throw new IndexOutOfBoundsException();
}
}
}
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