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An OSGi bundle for Saxon-HE

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////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// Copyright (c) 2013 Saxonica Limited.
// This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0.
// If a copy of the MPL was not distributed with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
// This Source Code Form is "Incompatible With Secondary Licenses", as defined by the Mozilla Public License, v. 2.0.
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

package net.sf.saxon.style;

import net.sf.saxon.expr.instruct.SlotManager;
import net.sf.saxon.trans.XPathException;

/**
 * This interface is implemented by all XSL elements that can contain local variable declarations.
 * Specifically, a top-level xsl:template, xsl:variable, xsl:param, or xsl:function element
 * or an xsl:attribute-set element or xsl:key element.
 */

public interface StylesheetProcedure {

    /**
     * Get the SlotManager associated with this stylesheet construct. The SlotManager contains the
     * information needed to manage the local stack frames used by run-time instances of the code.
     * @return the associated SlotManager object
     */

    public SlotManager getSlotManager();

    /**
     * Optimize the stylesheet construct
     * @param declaration
     */

    public void optimize(Declaration declaration) throws XPathException;

}