package org.checkerframework.checker.propkey.qual;
import java.lang.annotation.Documented;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
import org.checkerframework.framework.qual.DefaultFor;
import org.checkerframework.framework.qual.ImplicitFor;
import org.checkerframework.framework.qual.LiteralKind;
import org.checkerframework.framework.qual.SubtypeOf;
import org.checkerframework.framework.qual.TargetLocations;
import org.checkerframework.framework.qual.TypeUseLocation;
/**
* The bottom type in the PropertyKeyChecker (and associated checkers) qualifier hierarchy.
* Programmers should rarely write this type.
*
* @checker_framework.manual #propkey-checker Property File Checker
* @checker_framework.manual #bottom-type the bottom type
*/
@SubtypeOf(PropertyKey.class)
@Documented
@Retention(RetentionPolicy.RUNTIME)
@Target({ElementType.TYPE_USE, ElementType.TYPE_PARAMETER})
@TargetLocations({TypeUseLocation.EXPLICIT_LOWER_BOUND, TypeUseLocation.EXPLICIT_UPPER_BOUND})
@ImplicitFor(typeNames = java.lang.Void.class, literals = LiteralKind.NULL)
@DefaultFor(TypeUseLocation.LOWER_BOUND)
public @interface PropertyKeyBottom {}