XdmFunctionItem.h

// Copyright (c) 2022 - 2023 Saxonica Limited.
// This Source Code Form is subject to the terms of the Mozilla Public License,
// v. 2.0. If a copy of the MPL was not distributed with this file, You can
// obtain one at http://mozilla.org/MPL/2.0/. This Source Code Form is
// "Incompatible With Secondary Licenses", as defined by the Mozilla Public
// License, v. 2.0.
 
#ifndef SAXON_XDMFUNCTIONITEM_h
#define SAXON_XDMFUNCTIONITEM_h
 
#include "saxonc_export.h"
#include "saxonc/XdmAtomicValue.h"
#include "saxonc/XdmItem.h"
#include "saxonc/XdmNode.h"
 
#include <string>
 
#include <stdlib.h>
#include <string.h>

class SAXONC_EXPORT XdmFunctionItem : public XdmItem {
 
public:
  XdmFunctionItem();

  XdmFunctionItem(int64_t obj);

  XdmFunctionItem(const XdmFunctionItem &d);

  virtual ~XdmFunctionItem() {
    if (fname != nullptr) {
      delete fname;
    }
  }

  const char *getName();

  virtual int getArity();

  const char *getStringValue(const char *encoding = nullptr);

  static XdmFunctionItem *getSystemFunction(SaxonProcessor *processor,
                                     const char *name, int arity);

  XdmValue *call(SaxonProcessor *processor, XdmValue **arguments,
                 int argument_length);

  bool isAtomic() { return false; }

  XDM_TYPE getType() { return XDM_FUNCTION_ITEM; }

  bool isFunction() { return true; }
 
protected:
 
  char *fname; 
 
private:
  XdmFunctionItem & operator=(XdmFunctionItem i);
  int arity; 
};
 
#endif