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• ScopedBindingElement.java

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////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// Copyright (c) 2020 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;

/**
 * Marker interface for elements that declare a variable which is in-scope within their body
 */

public interface ScopedBindingElement {

    /**
     * Allocate slots to any variables used within the pattern
     *
     * @param slotManager the slot manager representing the stack frame for local variables
     * @param nextFree    the next slot that is free to be allocated
     * @return the next slot that is free to be allocated
     */

    int allocateSlots(SlotManager slotManager, int nextFree);
}