src/main/java/freemarker/core/BuiltInWithDirectCallOptimization.java

/*
 * 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;

abstract class BuiltInWithDirectCallOptimization extends SpecialBuiltIn {

    /**
     * Called if the built-in is directly followed by a "(" (ignoring comments and white-space). This can be utilized
     * for optimizations that only work correctly if the method returned by the built-in is a called immediately (as
     * opposed to being stored in a variable and then called at an arbitrary later point in time).
     */
    protected abstract void setDirectlyCalled();

}