Examples of SlotManager

client.net.sf.saxon.ce.expr.instruct.SlotManager
A SlotManager supports functions, templates, etc: specifically, any executable code that requires a stack frame containing local variables. In XSLT a SlotManager underpins any top-level element 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. In XQuery it underpins functions and global variables. The purpose of the SlotManager is to allocate slot numbers to variables in the stack, and to record how many slots are needed. A Debugger may define a subclass with additional functionality.
net.sf.saxon.instruct.SlotManager
A SlotManager supports functions, templates, etc: specifically, any executable code that requires a stack frame containing local variables. In XSLT a SlotManager underpins any top-level element 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. In XQuery it underpins functions and global variables. The purpose of the SlotManager is to allocate slot numbers to variables in the stack, and to record how many slots are needed. A Debugger may define a subclass with additional functionality.
org.pdf4j.saxon.instruct.SlotManager
A SlotManager supports functions, templates, etc: specifically, any executable code that requires a stack frame containing local variables. In XSLT a SlotManager underpins any top-level element 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. In XQuery it underpins functions and global variables. The purpose of the SlotManager is to allocate slot numbers to variables in the stack, and to record how many slots are needed. A Debugger may define a subclass with additional functionality.

Examples of net.sf.saxon.instruct.SlotManager

     * Factory method to create a SlotManager
     */


    public SlotManager makeSlotManager() {
        if (debugger == null) {
            return new SlotManager();
        } else {
            return debugger.makeSlotManager();
        }
    }

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Examples of net.sf.saxon.instruct.SlotManager

                0, Token.EOF, getDocumentLocator().getLineNumber(locationId), false);
        expr.setContainer(staticContext);
        ItemType contextItemType = Type.ITEM_TYPE;
        ExpressionVisitor visitor = ExpressionVisitor.make(staticContext);
        expr = visitor.typeCheck(expr, contextItemType);
        SlotManager stackFrameMap = getPipelineConfiguration().getConfiguration().makeSlotManager();
        ExpressionTool.allocateSlots(expr, stackFrameMap.getNumberOfVariables(), stackFrameMap);
        Controller controller = new Controller(getConfiguration());
        controller.setURIResolver(new URIPreventer());
        controller.setCurrentDateTime(currentDateTime);
                // this is to ensure that all use-when expressions in a module use the same date and time
        XPathContext dynamicContext = controller.newXPathContext();

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Examples of net.sf.saxon.instruct.SlotManager

        //NodeInfo curr;
        XPathContextMajor xc = context.newContext();
        xc.setOrigin(keydef);


        // The use expression (or sequence constructor) may contain local variables.
        SlotManager map = keydef.getStackFrameMap();
        if (map != null) {
            xc.openStackFrame(map);
        }


        SequenceIterator iter = match.selectNodes(doc, xc);

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Examples of net.sf.saxon.instruct.SlotManager

     * names to slots on the stack frame)
     */


    public SlotManager makeSlotManager() {
        if (debugger == null) {
            return new SlotManager();
        } else {
            return debugger.makeSlotManager();
        }
    }

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Examples of net.sf.saxon.instruct.SlotManager

        Expression exp = ExpressionTool.make(expression, staticContext, 0, -1, 1, false);
        exp.setContainer(staticContext);
        ExpressionVisitor visitor = ExpressionVisitor.make(staticContext);
        visitor.setExecutable(getExecutable());
        exp = visitor.typeCheck(exp, Type.ITEM_TYPE);
        SlotManager map = staticContext.getStackFrameMap();
        int numberOfExternalVariables = map.getNumberOfVariables();
        ExpressionTool.allocateSlots(exp, numberOfExternalVariables, map);
        XPathExpression xpe = new XPathExpression(this, exp);
        xpe.setStackFrameMap(map, numberOfExternalVariables);
        return xpe;
    }

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Examples of net.sf.saxon.instruct.SlotManager

     * created object that the caller is free to modify by adding additional variables, without affecting
     * the static context itself.
     */


    public SlotManager getStackFrameMap() {
        SlotManager map = getConfiguration().makeSlotManager();
        for (Iterator v = variables.values().iterator(); v.hasNext();) {
            XPathVariable var = (XPathVariable)v.next();
            map.allocateSlotNumber(var.getVariableQName());
        }
        return map;
    }

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Examples of net.sf.saxon.instruct.SlotManager

        if ((expression.getDependencies() & StaticProperty.DEPENDS_ON_LOCAL_VARIABLES) != 0) {
            StackFrame localStackFrame = context.getStackFrame();
            ValueRepresentation[] local = localStackFrame.getStackFrameValues();
            int[] slotsUsed = expression.getSlotsUsed();  // computed on first call
            if (local != null) {
                final SlotManager stackFrameMap = localStackFrame.getStackFrameMap();
                final ValueRepresentation[] savedStackFrame =
                        new ValueRepresentation[stackFrameMap.getNumberOfVariables()];
                for (int s=0; s<slotsUsed.length; s++) {
                    int i = slotsUsed[s];
                    if (local[i] instanceof Closure) {
                        int cdepth = ((Closure)local[i]).depth;
                        if (cdepth >= 10) {

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Examples of net.sf.saxon.instruct.SlotManager

     * @return the next slot that is free to be allocated
     */


    public int allocateSlots(ExpressionContext env, int nextFree) {
        // See tests cnfr23, idky239, match54, group018
        SlotManager slotManager = env.getStyleElement().getContainingSlotManager();
        if (variableBinding != null) {
            nextFree = ExpressionTool.allocateSlots(variableBinding, nextFree, slotManager);
        }
        for (int i = 0; i < numberOfFilters; i++) {
            nextFree = ExpressionTool.allocateSlots(filters[i], nextFree, slotManager);

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Examples of net.sf.saxon.instruct.SlotManager

                    var.getRequiredType(), role, visitor.getStaticContext());
            value2 = value2.optimize(visitor, AnyItemType.getInstance());
            var.setSelectExpression(value2);
            value2.setContainer(var);
            // the value expression may declare local variables
            SlotManager map = visitor.getConfiguration().makeSlotManager();
            int slots = ExpressionTool.allocateSlots(value2, 0, map);
            if (slots > 0) {
                var.setContainsLocals(map);
            }

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Examples of net.sf.saxon.instruct.SlotManager

    private XPathExpressionImpl createExpressionInternal(String expression) throws net.sf.saxon.trans.XPathException {
        Expression exp = ExpressionTool.make(expression, staticContext, 0, -1, 1, false);
        ExpressionVisitor visitor = ExpressionVisitor.make(staticContext);
        visitor.setExecutable(getExecutable());
        exp = visitor.typeCheck(exp, Type.ITEM_TYPE);
        SlotManager map = staticContext.getConfiguration().makeSlotManager();
        ExpressionTool.allocateSlots(exp, 0, map);
        exp.setContainer(staticContext);
        XPathExpressionImpl xpe = new XPathExpressionImpl(exp, getExecutable());
        xpe.setStackFrameMap(map);
        if (contextNode != null) {

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