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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
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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
 * one is included with the Software each a "Larger Work" to which the Software
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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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 * The above copyright notice and either this complete permission notice or at a
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package com.oracle.graal.python.builtins.objects.cext.common;

import static com.oracle.graal.python.builtins.PythonBuiltinClassType.SystemError;

import com.oracle.graal.python.nodes.PConstructAndRaiseNode;
import com.oracle.graal.python.runtime.exception.PException;
import com.oracle.truffle.api.frame.VirtualFrame;
import com.oracle.truffle.api.strings.TruffleString;

public abstract class LoadCExtException extends Exception {
    private static final long serialVersionUID = 3517291912314595890L;
    protected final PException cause;
    protected final Object name;
    protected final TruffleString formatString;
    protected final Object[] formatArgs;

    protected LoadCExtException(PException cause, TruffleString name, TruffleString formatString, Object[] formatArgs) {
        /*
         * We use the super constructor that initializes the cause to null. Without that, the cause
         * would be this exception itself. This helps escape analysis: it avoids the circle of an
         * object pointing to itself. We also do not need a message, so we use the constructor that
         * also allows us to set the message to null.
         */
        super(null, null);
        this.cause = cause;
        this.name = name;
        this.formatString = formatString;
        this.formatArgs = formatArgs;
    }

    /**
     * For performance reasons, this exception does not record any stack trace information.
     */
    @SuppressWarnings("sync-override")
    @Override
    public synchronized Throwable fillInStackTrace() {
        return this;
    }

    public static final class ApiInitException extends LoadCExtException {
        private static final long serialVersionUID = 982734876234786L;

        public ApiInitException(PException cause, TruffleString name, TruffleString formatString, Object... formatArgs) {
            super(cause, name, formatString, formatArgs);
        }

        public PException reraise(PConstructAndRaiseNode raiseNode, VirtualFrame frame) {
            if (cause != null) {
                throw cause.getExceptionForReraise();
            }
            throw raiseNode.executeWithFmtMessageAndArgs(frame, SystemError, formatString, formatArgs, null);
        }
    }

    public static final class ImportException extends LoadCExtException {
        private static final long serialVersionUID = 7862376523476548L;
        private final Object path;

        public ImportException(PException cause, TruffleString name, TruffleString path, TruffleString formatString, Object... formatArgs) {
            super(cause, name, formatString, formatArgs);
            this.path = path;
        }

        public PException reraise(PConstructAndRaiseNode raiseNode, VirtualFrame frame) {
            if (cause != null) {
                throw raiseNode.raiseImportError(frame, cause.getEscapedException(), name, path, formatString, formatArgs);
            }
            throw raiseNode.raiseImportError(frame, name, path, formatString, formatArgs);
        }
    }
}
