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 * The Universal Permissive License (UPL), Version 1.0
 *
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 * 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
 * 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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package com.oracle.truffle.js.builtins.intl;

import java.util.Arrays;

import com.oracle.truffle.api.CompilerDirectives;
import com.oracle.truffle.api.dsl.Specialization;
import com.oracle.truffle.js.builtins.JSBuiltinsContainer;
import com.oracle.truffle.js.builtins.intl.IntlBuiltinsFactory.GetCanonicalLocalesNodeGen;
import com.oracle.truffle.js.nodes.function.JSBuiltin;
import com.oracle.truffle.js.nodes.function.JSBuiltinNode;
import com.oracle.truffle.js.nodes.intl.JSToCanonicalizedLocaleListNode;
import com.oracle.truffle.js.runtime.JSContext;
import com.oracle.truffle.js.runtime.JSRuntime;
import com.oracle.truffle.js.runtime.builtins.BuiltinEnum;
import com.oracle.truffle.js.runtime.builtins.intl.JSIntl;

Contains builtins for Intl function (constructor). /**
 * Contains builtins for {@linkplain Intl} function (constructor).
 */
public final class IntlBuiltins extends JSBuiltinsContainer.SwitchEnum<IntlBuiltins.Intl> {

    public static final JSBuiltinsContainer BUILTINS = new IntlBuiltins();

    protected IntlBuiltins() {
        super(JSIntl.CLASS_NAME, Intl.class);
    }

    public enum Intl implements BuiltinEnum<Intl> {
        getCanonicalLocales(1);

        private final int length;

        Intl(int length) {
            this.length = length;
        }

        @Override
        public int getLength() {
            return length;
        }
    }

    @Override
    protected Object createNode(JSContext context, JSBuiltin builtin, boolean construct, boolean newTarget, Intl builtinEnum) {
        switch (builtinEnum) {
            case getCanonicalLocales:
                return GetCanonicalLocalesNodeGen.create(context, builtin, args().fixedArgs(1).createArgumentNodes(context));
        }
        return null;
    }

    public abstract static class GetCanonicalLocalesNode extends JSBuiltinNode {

        @Child JSToCanonicalizedLocaleListNode canonicalizeLocaleListNode;

        public GetCanonicalLocalesNode(JSContext context, JSBuiltin builtin) {
            super(context, builtin);
        }

        @Specialization
        @CompilerDirectives.TruffleBoundary
        protected Object getCanonicalLocales(Object locales) {
            if (canonicalizeLocaleListNode == null) {
                CompilerDirectives.transferToInterpreterAndInvalidate();
                canonicalizeLocaleListNode = insert(JSToCanonicalizedLocaleListNode.create(getContext()));
            }
            String[] languageTags = canonicalizeLocaleListNode.executeLanguageTags(locales);
            return JSRuntime.createArrayFromList(getContext(), Arrays.asList((Object[]) languageTags));
        }
    }
}