package org.checkerframework.checker.interning.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.PolymorphicQualifier;
/**
* A polymorphic qualifier for the Interning type system.
*
* <p>Any method written using @PolyInterned conceptually has two versions: one in which every
* instance of @PolyInterned has been replaced by @Interned, and one in which every instance
* of @PolyInterned has been erased.
*
* @checker_framework.manual #interning-checker Interning Checker
* @checker_framework.manual #qualifier-polymorphism Qualifier polymorphism
*/
@PolymorphicQualifier(UnknownInterned.class)
@Documented
@Retention(RetentionPolicy.RUNTIME)
@Target({ElementType.TYPE_USE, ElementType.TYPE_PARAMETER})
public @interface PolyInterned {}