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## net.sf.saxon.instruct
Class CallTemplate.CallTemplatePackage

    java.lang.Object
      net.sf.saxon.instruct.CallTemplate.CallTemplatePackage

All Implemented Interfaces:
  TailCall

Enclosing class:
  CallTemplate

    public static class CallTemplate.CallTemplatePackage

extends java.lang.Object
implements TailCall

A CallTemplatePackage is an object that encapsulates the name of a template to be called, the parameters to be supplied, and the execution context. This object can be returned as a tail call, so that the actual call is made from a lower point on the stack, allowing a tail-recursive template to execute in a finite stack size

Constructor Summary
`CallTemplate.CallTemplatePackage(Template template, ParameterSet params, ParameterSet tunnelParams, Instruction instruction, XPathContext evaluationContext)` Construct a CallTemplatePackage that contains information about a call.

Method Summary
`TailCall` | `processLeavingTail()` Process the template call encapsulated by this package.

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### CallTemplate.CallTemplatePackage

    public CallTemplate.CallTemplatePackage(Template template,
                                            ParameterSet params,
                                            ParameterSet tunnelParams,
                                            Instruction instruction,
                                            XPathContext evaluationContext)

  Construct a CallTemplatePackage that contains information about a call.

  Parameters:
    `template` - the Template to be called
    `params` - the parameters to be supplied to the called template
    `tunnelParams` - the tunnel parameter supplied to the called template
    `evaluationContext` - saved context information from the Controller (current mode, etc) which must be reset to ensure that the template is called with all the context information intact

Method Detail

### processLeavingTail

    public TailCall processLeavingTail()
                                throws XPathException

  Process the template call encapsulated by this package.

  Specified by:
    `processLeavingTail` in interface `TailCall`
  Returns:
    another TailCall. This will never be the original call, but it may be the next recursive call. For example, if A calls B which calls C which calls D, then B may return a TailCall to A representing the call from B to C; when this is processed, the result may be a TailCall representing the call from C to D.
  Throws:
    `XPathException` - if a dynamic error occurs

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Copyright (c) Saxonica Limited. All rights reserved.