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/*
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 * 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
 * freely licensable by each licensor hereunder covering either (i) the
 * unmodified Software as contributed to or provided by such licensor, or (ii)
 * the Larger Works (as defined below), to deal in both
 *
 * (a) the Software, and
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 * (b) any piece of software and/or hardware listed in the lrgrwrks.txt file if
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 * is contributed by such licensors),
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package org.pkl.thirdparty.svm.annotate;

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

import org.pkl.thirdparty.graalvm.nativeimage.Platform;
import org.pkl.thirdparty.graalvm.nativeimage.Platforms;

/**
 * Inject accessor methods for the field denoted using an {@link Alias} annotation. All loads and
 * stores to the original field are redirected to accessor methods located in the class provided in
 * the {@link #value} property. The class must implement the marker interface
 * {@link InjectAccessors}. The accessor methods are static methods in that class, named either
 * {@code get} / {@code set} or {@code getFoo} / {@code setFoo} for a field name {@code foo}.
 * Depending on the kind of accessor (get / set for a static / non-static field), the accessor must
 * have 0, 1, or 2 parameters.
 *
 * If the field is non-static, the first method parameter is the accessed object. The type of the
 * parameter must be the class that declared the field. The null check on the object is performed
 * before the accessor is called, in the same way as the null check for a regular field access.
 *
 * For get-accessors, the return type of the method must be the type of the field. For
 * set-accessors, the last method parameter must be the type of the field and denotes the value
 * stored to the field.
 *
 * If no set-accessor is provided, stores to the field lead to a fatal error during image
 * generation. If no get-accessor is provided, loads of the field lead to a fatal error during image
 * generation.
 *
 * The injected accessors must not access the original field. Since all field accesses use the
 * accessors, that would lead to a recursive call of the accessors. Instead, data must be stored in
 * either a new static field, or an {@link Inject injected} instance field.
 *
 * @since 22.3
 */
@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.FIELD)
@Platforms(Platform.HOSTED_ONLY.class)
public @interface InjectAccessors {

    /**
     * @since 22.3
     */
    Class value();
}




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