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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
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 * (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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package org.pkl.thirdparty.truffle.polyglot;

import static org.pkl.thirdparty.truffle.polyglot.PolyglotEngineImpl.HOST_LANGUAGE_INDEX;
import static org.pkl.thirdparty.truffle.polyglot.PolyglotFastThreadLocals.LANGUAGE_CONTEXT_OFFSET;
import static org.pkl.thirdparty.truffle.polyglot.PolyglotFastThreadLocals.computeLanguageIndexFromStaticIndex;

import org.pkl.thirdparty.graalvm.polyglot.impl.AbstractPolyglotImpl;
import org.pkl.thirdparty.graalvm.polyglot.impl.AbstractPolyglotImpl.AbstractHostLanguageService;
import org.pkl.thirdparty.graalvm.polyglot.impl.AbstractPolyglotImpl.AbstractPolyglotHostService;

/**
 * Polyglot host service is needed for polyglot isolates. In case it is used for a non-isolated
 * engine, DefaultPolyglotHostService is used. Since there is no host side in terms of polyglot
 * isolates, all operations are no-op.
 */
class DefaultPolyglotHostService extends AbstractPolyglotHostService {
    DefaultPolyglotHostService(AbstractPolyglotImpl polyglot) {
        super(polyglot);
    }

    @Override
    public void notifyClearExplicitContextStack(Object contextReceiver) {
    }

    @Override
    public void notifyContextCancellingOrExiting(Object contextReceiver, boolean exit, int exitCode, boolean resourceLimit, String message) {
    }

    @Override
    public void notifyContextClosed(Object contextReceiver, boolean cancelIfExecuting, boolean resourceLimit, String message) {
    }

    @Override
    public void notifyEngineClosed(Object engineReceiver, boolean cancelIfExecuting) {
    }

    @Override
    public RuntimeException hostToGuestException(AbstractHostLanguageService host, Throwable throwable) {
        assert !host.isHostException(throwable);
        return host.toHostException(PolyglotFastThreadLocals.getLanguageContext(null, computeLanguageIndexFromStaticIndex(HOST_LANGUAGE_INDEX, LANGUAGE_CONTEXT_OFFSET)), throwable);
    }
}