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/*
* Copyright (c) 2017, 2022, 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)
* 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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* 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
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*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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package org.graalvm.options;
/**
* Represents a set of option values based on an {@link OptionDescriptor}.
*
* @since 19.0
*/
public interface OptionValues {
/**
* Returns all available options.
*
* @since 19.0
*/
OptionDescriptors getDescriptors();
/**
* Sets the value of {@code optionKey} to {@code value}.
*
* @throws UnsupportedOperationException because this operation has been deprecated and is no
* longer supported, in order for OptionValues to be read-only.
*
* @since 19.0
* @deprecated {@link OptionValues} should be read-only. If the value of an option needs to be
* altered after options are set, then the new value should be stored in the
* language's context or instrument fields and read from there.
*/
@Deprecated(since = "22.0")
@SuppressWarnings("unused")
default void set(OptionKey optionKey, T value) {
throw new UnsupportedOperationException();
}
/**
* Returns the value of a given option. {@link #hasBeenSet(OptionKey)} can be used to know
* whether the value was explicitly set, or is the {@link OptionKey#getDefaultValue() default
* value}.
*
* @since 19.0
*/
T get(OptionKey optionKey);
/**
* Determines if a value for {@code optionKey} has been set explicitly by the {@code Context} or
* {@code Engine}, and therefore {@link #get(OptionKey)} does not call
* {@link OptionKey#getDefaultValue()}.
*
* @since 19.0
*/
boolean hasBeenSet(OptionKey> optionKey);
/**
* Determines if a value for any of the option keys in {@link #getDescriptors() option
* descriptors} {@link #hasBeenSet(OptionKey) has been set}.
*
* @since 19.0
*/
default boolean hasSetOptions() {
for (OptionDescriptor descriptor : getDescriptors()) {
if (hasBeenSet(descriptor.getKey())) {
return true;
}
}
return false;
}
}