package org.checkerframework.checker.units.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.SubtypeOf; /** * Square millimeter. * * @checker_framework.manual #units-checker Units Checker */ @Documented @Retention(RetentionPolicy.RUNTIME) @Target({ElementType.TYPE_USE, ElementType.TYPE_PARAMETER}) @SubtypeOf(Area.class) public @interface mm2 {}