/*
 * Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * The Universal Permissive License (UPL), Version 1.0
 *
 * Subject to the condition set forth below, permission is hereby granted to any
 * person obtaining a copy of this software, associated documentation and/or
 * data (collectively the "Software"), free of charge and under any and all
 * copyright rights in the Software, and any and all patent rights owned or
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 * unmodified Software as contributed to or provided by such licensor, or (ii)
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 *
 * (a) the Software, and
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 * (b) any piece of software and/or hardware listed in the lrgrwrks.txt file if
 * one is included with the Software each a "Larger Work" to which the Software
 * is contributed by such licensors),
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 * without restriction, including without limitation the rights to copy, create
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 * Software and the Larger Work(s), and to sublicense the foregoing rights on
 * either these or other terms.
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 * This license is subject to the following condition:
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 * portions of the Software.
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package org.graalvm.nativeimage.c.struct;

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

import org.graalvm.word.WordBase;

Denotes a method as a field offset access of a RawStructure. The method must not have any parameters. The return type must be a primitive integer type or a word type. 
 Calls to the method are replaced with a compile time constant. If the annotation is used on a non-static method, the receiver is ignored. Java does not allow an interface method to be declared static native. So the annotated method must either be non-static (with the receiver being ignored), or static but non-native (with the method body being ignored). 
Since:
19.3/**
 * Denotes a method as a field offset access of a {@link RawStructure}. The method must not have any
 * parameters. The return type must be a primitive integer type or a {@link WordBase word type}.
 * <p>
 * Calls to the method are replaced with a compile time constant. If the annotation is used on a
 * non-static method, the receiver is ignored. Java does not allow an interface method to be
 * declared {@code static native}. So the annotated method must either be non-static (with the
 * receiver being ignored), or static but non-native (with the method body being ignored).
 *
 * @since 19.3
 */
@Retention(RetentionPolicy.RUNTIME)
@Target({ElementType.METHOD})
public @interface RawFieldOffset {
}