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package org.checkerframework.common.value.qual;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
import org.checkerframework.framework.qual.SubtypeOf;
/**
* An expression with this type is exactly the same as an {@link IntRange} annotation whose {@code
* from} field is {@code 1} and whose {@code to} field is {@code Integer.MAX_VALUE}. However, this
* annotation is derived from an {@code org.checkerframework.checker.index.qual.Positive}
* annotation.
*
* IntRangeFromPositive annotations derived from Positive annotations are used to create IntRange
* annotations, but IntRangeFromPositive annotations are not checked when they appear on the left
* hand side of expressions. Therefore, the Index Checker MUST be run on any code with @Positive
* annotations on the left-hand side of expressions, since the Value Checker will derive information
* from them but not check them.
*
*
It is an error to write this annotation directly. {@code @Positive} or {@code IntRange(from =
* 1, to = Integer.MAX_VALUE)} should always be written instead. This annotation is not retained in
* bytecode, but is replaced with {@code @UnknownVal}, so that it is not enforced on method
* boundaries. The {@code @Positive} annotation it replaced is retained in bytecode by the Lower
* Bound Checker instead.
*
* @checker_framework.manual #constant-value-checker Constant Value Checker
*/
@SubtypeOf(UnknownVal.class)
@Retention(RetentionPolicy.SOURCE)
@Target({})
public @interface IntRangeFromPositive {}