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GraalVM is an ecosystem for compiling and running applications written in multiple languages.
GraalVM removes the isolation between programming languages and enables interoperability in a shared runtime.
/*
* Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
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*/
package org.graalvm.polyglot;
import org.graalvm.options.OptionDescriptor;
import org.graalvm.options.OptionDescriptors;
import org.graalvm.polyglot.impl.AbstractPolyglotImpl.AbstractLanguageImpl;
/**
* A handle for a Graal language installed in an {@link Engine engine}. The handle provides access
* to the language's meta-data, including the language's {@link #getId() id}, {@link #getName()
* name}, {@link #getVersion() version} and {@link #getOptions() options}.
*
* @see Engine#getLanguages()
* @since 1.0
*/
public final class Language {
final AbstractLanguageImpl impl;
Language(AbstractLanguageImpl impl) {
this.impl = impl;
}
/**
* Gets the primary identification string of this language. The language id is used as the
* primary way of identifying languages in the polyglot API. (eg. js)
*
* @return a language ID string.
* @since 1.0
*/
public String getId() {
return impl.getId();
}
/**
* Gets a human-readable name for the language (for example, "JavaScript").
*
* @return the user-friendly name for this language.
* @since 1.0
*/
public String getName() {
return impl.getName();
}
/**
* Gets a human-readable name of the language implementation (for example, "Graal.JS"). Returns
* null if no implementation name was specified.
*
* @since 1.0
*/
public String getImplementationName() {
return impl.getImplementationName();
}
/**
* Gets the version information of the language in an arbitrary language-specific format.
*
* @since 1.0
*/
public String getVersion() {
return impl.getVersion();
}
/**
* Returns true if a the language is suitable for interactive evaluation of
* {@link Source sources}. {@link #isInteractive() Interactive} languages should be displayed in
* interactive environments and presented to the user.
*
* @since 1.0
*/
public boolean isInteractive() {
return impl.isInteractive();
}
/**
* Returns the set of options provided by this language. Option values for languages can either
* be provided while building an {@link Engine.Builder#option(String, String) engine} or a
* {@link Context.Builder#option(String, String) context}. The option descriptor
* {@link OptionDescriptor#getName() name} must be used as the option name.
*
* @since 1.0
*/
public OptionDescriptors getOptions() {
return impl.getOptions();
}
}