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

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

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


        //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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        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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    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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        }
    }


    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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        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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Related Classes of client.net.sf.saxon.ce.expr.instruct.SlotManager

client.net.sf.saxon.ce.style.UseWhenFilter

client.net.sf.saxon.ce.style.XSLFunction

client.net.sf.saxon.ce.style.XSLKey

client.net.sf.saxon.ce.trans.KeyManager

client.net.sf.saxon.ce.value.Closure

java.util.ArrayList

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