Examples of net.sf.saxon.instruct.SlotManager

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.

        NodeInfo curr = sourceRoot;
        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);
        }


        int nodeType = match.getNodeKind();

View Full Code Here


    public XPathExpression createExpression(String expression)
    throws XPathException {
        Expression exp = ExpressionTool.make(expression, staticContext,0,-1,1);
        exp = exp.analyze(staticContext, Type.ITEM_TYPE);
        SlotManager map = staticContext.getConfiguration().makeSlotManager();
        ExpressionTool.allocateSlots(exp, 1, null);
        XPathExpression xpe = new XPathExpression(exp, staticContext.getConfiguration());
        xpe.setStackFrameMap(map);
        xpe.setContextNode(contextNode);
        return xpe;

View Full Code Here

    */


    public List evaluate(String expression) throws XPathException {
        Expression exp = ExpressionTool.make(expression, staticContext,0,-1,1);
        exp = exp.analyze(staticContext, Type.ITEM_TYPE);
        SlotManager map = staticContext.getConfiguration().makeSlotManager();
        ExpressionTool.allocateSlots(exp, 1, map);
        XPathContextMajor context = new XPathContextMajor(contextNode, staticContext.getConfiguration());
        context.openStackFrame(map);
        SequenceIterator iterator = exp.iterate(context);
        ArrayList list = new ArrayList(20);

View Full Code Here

    */


    public Object evaluateSingle(String expression) throws XPathException {
        Expression exp = ExpressionTool.make(expression, staticContext,0,-1,1);
        exp = exp.analyze(staticContext, Type.ITEM_TYPE);
        SlotManager map = staticContext.getConfiguration().makeSlotManager();
        ExpressionTool.allocateSlots(exp, 1, map);
        XPathContextMajor context = new XPathContextMajor(contextNode, staticContext.getConfiguration());
        context.openStackFrame(map);
        SequenceIterator iterator = exp.iterate(context);
        Item item = iterator.next();

View Full Code Here

            if (!redundant) {
                slotNumber = getPrincipalStylesheet().allocateGlobalSlot(getVariableFingerprint());
            }
        } else {
            checkWithinTemplate();
            SlotManager p = getContainingSlotManager();
            if (p==null) {
                compileError("Local variable must be declared within a template or function");
            } else {
                slotNumber = p.allocateSlotNumber(getVariableFingerprint());
            }
        }
        // Check for duplication
            // Global variables are checked at the XSLStylesheet level
            // For local variables, duplicates are now allowed

View Full Code Here

     * Factory method to create a SlotManager
     */


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

View Full Code Here

                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();

View Full Code Here

        //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);

View Full Code Here

     * names to slots on the stack frame)
     */


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

View Full Code Here

        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;
    }

View Full Code Here

0 1 2

TOP

Related Classes of net.sf.saxon.instruct.SlotManager

net.sf.saxon.Configuration

net.sf.saxon.pattern.LocationPathPattern

net.sf.saxon.query.GlobalVariableDefinition

net.sf.saxon.style.UseWhenFilter

net.sf.saxon.style.XSLVariableDeclaration

net.sf.saxon.sxpath.IndependentContext

net.sf.saxon.sxpath.XPathEvaluator

net.sf.saxon.trans.KeyManager

net.sf.saxon.value.Closure

net.sf.saxon.xpath.XPathEvaluator

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.