/*
 * Copyright (C) 2009-2011 Mathias Doenitz
 *
 * Licensed 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 org.parboiled.common;

import javax.annotation.Nullable;

/**
 * Interface for a class producing initial values
 *
 * @param <T> produced values
 *
 */
public interface Factory<T>
{
    @Nullable
    T create();
}

/*
 * Copyright (C) 2009-2011 Mathias Doenitz
 *
 * Licensed 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 org.parboiled.common;

import org.objectweb.asm.ClassWriter;
import org.parboiled.transform.BaseVarInit;
import org.parboiled.transform.InstructionGroup;
import org.parboiled.transform.VarInitClassGenerator;

import javax.annotation.Nullable;

/**
 * Interface for a class producing initial values
 *
 * @param <T> produced values
 *
 * @see BaseVarInit
 * @see VarInitClassGenerator#generateMethod(InstructionGroup, ClassWriter)
 */
public interface Factory<T>
{
    @Nullable
    T create();
}

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