content: /*
   * Copyright (C) 2020 ActiveJ LLC.
   *
   * 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 io.activej.types.scanner;
  
  import io.activej.types.TypeT;
  
  import java.lang.reflect.AnnotatedType;
  import java.lang.reflect.Type;
  
  import static io.activej.types.AnnotatedTypes.annotatedTypeOf;
  
  /**
   * An interface that defines how to map annotated types to {@link R} results
   */
  public interface TypeScanner<R> {
  	/**
  	 * Scans an annotated type and maps it to an {@link R} result
  	 *
  	 * @param type an annotated type to be scanned
  	 * @return a result of scan
  	 */
  	R scan(AnnotatedType type);
  
  	/**
  	 * Scans a  type and maps it to an {@link R} result
  	 *
  	 * @param type a type to be scanned
  	 * @return a result of scan
  	 */
  	default R scan(Type type) {
  		return scan(annotatedTypeOf(type));
  	}
  
  	/**
  	 * Scans a type token and maps it to an {@link R} result
  	 *
  	 * @param type a type token to be scanned
  	 * @return a result of scan
  	 */
  	default R scan(TypeT<?> type) {
  		return scan(type.getAnnotatedType());
  	}
  }
  