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 client.net.sf.saxon.ce.expr.instruct.SlotManager


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


        // 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 client.net.sf.saxon.ce.expr.instruct.SlotManager

        super.fixupReferences();
    }


    public void validate(Declaration decl) throws XPathException {


        stackFrameMap = new SlotManager();


        // check the element is at the top level of the stylesheet


        checkTopLevel(null);
        getNumberOfArguments();

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Examples of client.net.sf.saxon.ce.expr.instruct.SlotManager


    public boolean evaluateUseWhen(Expression expr, UseWhenStaticContext staticContext) throws XPathException {
        ItemType contextItemType = Type.ITEM_TYPE;
        ExpressionVisitor visitor = ExpressionVisitor.make(staticContext, staticContext.getExecutable());
        expr = visitor.typeCheck(expr, contextItemType);
        SlotManager stackFrameMap = new SlotManager();
        ExpressionTool.allocateSlots(expr, stackFrameMap.getNumberOfVariables(), stackFrameMap);
        Controller controller = new Controller(getConfiguration());
        // TODO:CLAXON ensure calls on doc() are unsuccessful
        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 client.net.sf.saxon.ce.expr.instruct.SlotManager

        }
    }


    public void validate(Declaration decl) throws XPathException {


        stackFrameMap = new SlotManager();
        checkTopLevel(null);
        if (use!=null) {
            // the value can be supplied as a content constructor in place of a use expression
            if (hasChildNodes()) {
                compileError("An xsl:key element with a @use attribute must be empty", "XTSE1205");

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Examples of client.net.sf.saxon.ce.expr.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

                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

        exp.setContainer(staticContext);
        ExpressionVisitor visitor = ExpressionVisitor.make(staticContext);
        visitor.setExecutable(getExecutable());
        exp = visitor.typeCheck(exp, Type.ITEM_TYPE);
        exp = visitor.optimize(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


    public XPathExpression createPattern(String pattern) throws XPathException {
        Pattern pat = Pattern.make(pattern, staticContext, staticContext.getExecutable());
        ExpressionVisitor visitor = ExpressionVisitor.make(staticContext);
        pat.analyze(visitor, Type.NODE_TYPE);
        SlotManager map = staticContext.getStackFrameMap();
        int slots = map.getNumberOfVariables();
        slots = pat.allocateSlots(staticContext, map, slots);
        PatternSponsor sponsor = new PatternSponsor(pat);
        XPathExpression xpe = new XPathExpression(this, sponsor);
        xpe.setStackFrameMap(map, slots);
        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();
        XPathVariable[] va = new XPathVariable[variables.size()];


        for (Iterator<XPathVariable> v = variables.values().iterator(); v.hasNext();) {
            XPathVariable var = v.next();
            va[var.getLocalSlotNumber()] = var;
        }
        for (int i=0; i<va.length; i++) {
            map.allocateSlotNumber(va[i].getVariableQName());
        }
        return map;
    }

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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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