/*
 * Copyright (c) Facebook, Inc. and its affiliates. 
 *
 * 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 com.facebook.buck.rules.modern.impl;

import com.facebook.buck.rules.modern. ValueCreator;
import com.facebook.buck.rules.modern. ValueTypeInfo;
import com.facebook.buck.rules.modern. ValueVisitor;
import java.util.regex. Pattern;

/** ValueTypeInfo for Pattern.  These are basically treated as just the underlying pattern string. */ 
public class PatternValueTypeInfo implements ValueTypeInfo<Pattern> {
  public static final ValueTypeInfo<Pattern> INSTANCE = new PatternValueTypeInfo();

  @Override
  public <E extends Exception> void visit(Pattern value, ValueVisitor<E> visitor) throws E {
    visitor.visitString(value.pattern());
  }

  @Override
  public <E extends Exception> Pattern create(ValueCreator<E> creator) throws E {
    return Pattern.compile(creator.createString());
  }
}
