framework/src/main/java/org/checkerframework/common/util/debug/EmptyProcessor.java

package org.checkerframework.common.util.debug;

import java.util.Set;
import javax.annotation.processing.AbstractProcessor;
import javax.annotation.processing.RoundEnvironment;
import javax.annotation.processing.SupportedAnnotationTypes;
import javax.lang.model.SourceVersion;
import javax.lang.model.element.TypeElement;

/**
 * Empty simple processor.
 *
 * <p>It is useful in debugging compiler behavior with an annotation processor present.
 */
@SupportedAnnotationTypes("*")
public class EmptyProcessor extends AbstractProcessor {

  @Override
  public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) {
    System.out.println("Empty Processor run!");
    return false;
  }

  @Override
  public SourceVersion getSupportedSourceVersion() {
    return SourceVersion.latest();
  }
}