content: /*******************************************************************************
   * Copyright (c) 2009, 2019 Mountainminds GmbH & Co. KG and Contributors
   * All rights reserved. This program and the accompanying materials
   * are made available under the terms of the Eclipse Public License v1.0
   * which accompanies this distribution, and is available at
   * http://www.eclipse.org/legal/epl-v10.html
   *
   * Contributors:
   *    Evgeny Mandrikov - initial API and implementation
   *
   *******************************************************************************/
  package org.jacoco.core.internal.analysis.filter;
  
  import java.util.List;
  
  import org.objectweb.asm.tree.AnnotationNode;
  import org.objectweb.asm.tree.MethodNode;
  
  /**
   * Filters classes and methods annotated with
   * {@link java.lang.annotation.RetentionPolicy#RUNTIME runtime visible} and
   * {@link java.lang.annotation.RetentionPolicy#CLASS invisible} annotation whose
   * simple name contains <code>Generated</code>.
   */
  public final class AnnotationGeneratedFilter implements IFilter {
  
  	public void filter(final MethodNode methodNode,
  			final IFilterContext context, final IFilterOutput output) {
  
  		for (String annotation : context.getClassAnnotations()) {
  			if (matches(annotation)) {
  				output.ignore(methodNode.instructions.getFirst(),
  						methodNode.instructions.getLast());
  				return;
  			}
  		}
  
  		if (presentIn(methodNode.invisibleAnnotations)
  				|| presentIn(methodNode.visibleAnnotations)) {
  			output.ignore(methodNode.instructions.getFirst(),
  					methodNode.instructions.getLast());
  		}
  
  	}
  
  	private static boolean matches(final String annotation) {
  		final String name = annotation
  				.substring(Math.max(annotation.lastIndexOf('/'),
  						annotation.lastIndexOf('$')) + 1);
  		return name.contains("Generated");
  	}
  
  	private static boolean presentIn(final List<AnnotationNode> annotations) {
  		if (annotations != null) {
  			for (AnnotationNode annotation : annotations) {
  				if (matches(annotation.desc)) {
  					return true;
  				}
  			}
  		}
  		return false;
  	}
  
  }
  