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package org.checkerframework.common.value.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;
/**
* An expression with this type evaluates to an integral value (byte, short, char, int, or long) in
* the given range. The bounds are inclusive. For example, the following declaration allows the 12
* values 0, 1, ..., 11:
*
* {@code @IntRange(from=0, to=11) int month;}
*
* If only one of the {@code to} and {@code from} fields is set, then the other will default to
* the max/min value of the type of the variable that is annotated. (In other words, the defaults
* {@code Long.MIN_VALUE} and {@code Long.MAX_VALUE} are used only for {@code long}; appropriate
* values are used for other types.)
*
* @checker_framework.manual #constant-value-checker Constant Value Checker
*/
@Documented
@Retention(RetentionPolicy.RUNTIME)
@Target({ElementType.TYPE_PARAMETER, ElementType.TYPE_USE})
@SubtypeOf(UnknownVal.class)
public @interface IntRange {
/**
* Largest value in the range, inclusive.
*
* @return the largest value in the range, inclusive
*/
long from() default Long.MIN_VALUE;
/**
* Largest value in the range, inclusive.
*
* @return the largest value in the range, inclusive
*/
long to() default Long.MAX_VALUE;
}