package org.checkerframework.checker.signedness.qual;
import java.lang.annotation.ElementType;
import java.lang.annotation.Target;
import javax.lang.model.type.TypeKind;
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 Unsigned type system. Programmers should rarely write this type.
*
* @checker_framework.manual #signedness-checker Signedness Checker
* @checker_framework.manual #bottom-type the bottom type
*/
@SubtypeOf({Constant.class})
@Target({ElementType.TYPE_USE, ElementType.TYPE_PARAMETER})
@TargetLocations({TypeUseLocation.EXPLICIT_LOWER_BOUND, TypeUseLocation.EXPLICIT_UPPER_BOUND})
@ImplicitFor(
literals = LiteralKind.NULL,
types = {TypeKind.NULL}
)
public @interface SignednessBottom {}