UnsupportedTypeException.java

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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * 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
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 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
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package com.oracle.truffle.api.interop;

import com.oracle.truffle.api.CompilerDirectives;

/**
 * An exception thrown if a {@link TruffleObject} does not support the type of one ore more
 * arguments provided by a foreign access.
 *
 * @since 0.11
 */
public final class UnsupportedTypeException extends InteropException {

    private static final long serialVersionUID = 1857745390734085182L;

    private final Object[] suppliedValues;

    private UnsupportedTypeException(Exception cause, Object[] suppliedValues) {
        super(cause);
        this.suppliedValues = suppliedValues;
    }

    private UnsupportedTypeException(Object[] suppliedValues) {
        this(null, suppliedValues);
    }

    /**
     * Returns the arguments of the foreign object access that were not supported by the
     * {@link TruffleObject}.
     *
     * @return the unsupported arguments
     * @since 0.11
     */
    public Object[] getSuppliedValues() {
        return suppliedValues;
    }

    /**
     * Raises an {@link UnsupportedTypeException}, hidden as a {@link RuntimeException}, which
     * allows throwing it without an explicit throws declaration. The {@link ForeignAccess} methods
     * (e.g. <code> ForeignAccess.sendRead </code>) catch the exceptions and re-throw them as
     * checked exceptions.
     *
     * @param suppliedValues values that were not supported
     *
     * @return the exception
     * @since 0.11
     */
    public static RuntimeException raise(Object[] suppliedValues) {
        return raise(null, suppliedValues);
    }

    /**
     * Raises an {@link UnsupportedTypeException}, hidden as a {@link RuntimeException}, which
     * allows throwing it without an explicit throws declaration. The {@link ForeignAccess} methods
     * (e.g. <code> ForeignAccess.sendRead </code>) catch the exceptions and re-throw them as
     * checked exceptions.
     *
     * @param cause cause of this exception
     * @param suppliedValues values that were not supported
     *
     * @return the exception
     * @since 0.11
     */
    public static RuntimeException raise(Exception cause, Object[] suppliedValues) {
        CompilerDirectives.transferToInterpreter();
        return silenceException(RuntimeException.class, new UnsupportedTypeException(cause, suppliedValues));
    }
}