| package org.checkerframework.common.aliasing.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.DefaultQualifierInHierarchy; |
| import org.checkerframework.framework.qual.SubtypeOf; |
| import org.checkerframework.framework.qual.TypeUseLocation; |
| |
| /** |
| * An expression with this type might have an alias. In other words, some other expression, |
| * evaluated at the same program point, might evaluate to the exact same object value. |
| * |
| * @see Unique |
| * @checker_framework.manual #aliasing-checker Aliasing Checker |
| */ |
| @Documented |
| @Retention(RetentionPolicy.RUNTIME) |
| @Target({ElementType.TYPE_PARAMETER, ElementType.TYPE_USE}) |
| @SubtypeOf({}) |
| @DefaultQualifierInHierarchy |
| @DefaultFor( |
| value = {TypeUseLocation.UPPER_BOUND, TypeUseLocation.LOWER_BOUND}, |
| types = Void.class) |
| public @interface MaybeAliased {} |