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/*
* Copyright (c) 2020, 2021, 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
* 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
*
* (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),
*
* without restriction, including without limitation the rights to copy, create
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* use, sell, offer for sale, import, export, have made, and have sold the
* Software and the Larger Work(s), and to sublicense the foregoing rights on
* either these or other terms.
*
* This license is subject to the following condition:
*
* The above copyright notice and either this complete permission notice or at a
* minimum a reference to the UPL must be included in all copies or substantial
* portions of the Software.
*
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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package org.graalvm.polyglot.proxy;
import java.util.Iterator;
import java.util.Objects;
import org.graalvm.polyglot.Context;
import org.graalvm.polyglot.HostAccess.Builder;
import org.graalvm.polyglot.Value;
/**
* Interface to be implemented to mimic guest language iterables.
*
* @see Proxy
* @see ProxyIterator
* @since 21.1
*/
public interface ProxyIterable extends Proxy {
/**
* Returns an iterator. The returned object must be interpreted as an iterator using the
* semantics of {@link Context#asValue(Object)} otherwise an {@link IllegalStateException} is
* thrown. Examples for valid return values are:
*
A guest language object representing an iterator
*
*
* @see ProxyIterator
* @since 21.1
*/
Object getIterator();
/**
* Creates a proxy iterable backed by a Java {@link Iterable}. If the values of the iterable are
* host values then they will be {@link Value#asHostObject() unboxed}.
*
* @since 21.1
*/
static ProxyIterable from(Iterable
