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package org.graalvm.nativeimage.c.constant;

import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

Annotation for a method that returns the Java enumeration object for a given C integer value. The method must be within a class annotated with CEnum. The method must be declared static, native, and must have exactly one parameter (the C value that is to be looked up). The method can have any name.

The Java enumeration can have multiple values with the same C value. However, in that case one Java value must be selected manually using the attribute CEnumConstant.includeInLookup(). All but one Java values must have this attribute set to false.

Since:19.0
/** * Annotation for a method that returns the Java enumeration object for a given C integer value. The * method must be within a class annotated with {@link CEnum}. The method must be declared static, * native, and must have exactly one parameter (the C value that is to be looked up). The method can * have any name. * <p> * The Java enumeration can have multiple values with the same C value. However, in that case one * Java value must be selected manually using the attribute {@link CEnumConstant#includeInLookup()}. * All but one Java values must have this attribute set to {@code false}. * * @since 19.0 */
@Retention(RetentionPolicy.RUNTIME) @Target(ElementType.METHOD) public @interface CEnumLookup { }