CallReferenceNode.h

/* -*- mode: c++; indent-tabs-mode: nil -*- */
/*
  CallReferenceNode.h
 
  Qore Programming Language
 
  Copyright (C) 2003 - 2014 David Nichols
 
  Permission is hereby granted, free of charge, to any person obtaining a
  copy of this software and associated documentation files (the "Software"),
  to deal in the Software without restriction, including without limitation
  the rights to use, copy, modify, merge, publish, distribute, sublicense,
  and/or sell copies of the Software, and to permit persons to whom the
  Software is furnished to do so, subject to the following conditions:

  The above copyright notice and this permission notice shall be included in
  all copies or substantial portions of the Software.

  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  DEALINGS IN THE SOFTWARE.

  Note that the Qore library is released under a choice of three open-source
  licenses: MIT (as above), LGPL 2+, or GPL 2+; see README-LICENSE for more
  information.
*/

#ifndef _QORE_FUNCTIONREFERENCENODE_H

#define _QORE_FUNCTIONREFERENCENODE_H


class AbstractCallReferenceNode : public AbstractQoreNode {
private:

   DLLLOCAL virtual AbstractQoreNode *realCopy() const;


   DLLLOCAL virtual bool is_equal_soft(const AbstractQoreNode *v, ExceptionSink *xsink) const;


   DLLLOCAL virtual bool is_equal_hard(const AbstractQoreNode *v, ExceptionSink *xsink) const;

protected:

   DLLLOCAL virtual AbstractQoreNode *evalImpl(ExceptionSink *xsink) const;


   DLLLOCAL virtual AbstractQoreNode *evalImpl(bool &needs_deref, ExceptionSink *xsink) const;


   DLLLOCAL virtual int64 bigIntEvalImpl(ExceptionSink *xsink) const;


   DLLLOCAL virtual int integerEvalImpl(ExceptionSink *xsink) const;


   DLLLOCAL virtual bool boolEvalImpl(ExceptionSink *xsink) const;


   DLLLOCAL virtual double floatEvalImpl(ExceptionSink *xsink) const;

   DLLLOCAL AbstractCallReferenceNode(bool n_needs_eval, bool n_there_can_be_only_one, qore_type_t n_type = NT_FUNCREF);

public:
   DLLLOCAL AbstractCallReferenceNode(bool n_needs_eval = false, qore_type_t n_type = NT_FUNCREF);

   DLLLOCAL virtual ~AbstractCallReferenceNode();


   DLLEXPORT virtual bool getAsBoolImpl() const;


   DLLLOCAL virtual int getAsString(QoreString &str, int foff, ExceptionSink *xsink) const;


   DLLLOCAL virtual QoreString *getAsString(bool &del, int foff, ExceptionSink *xsink) const;

   DLLLOCAL virtual const char *getTypeName() const;

   DLLLOCAL static const char *getStaticTypeName() {
      return "call reference";
   }
};

class ResolvedCallReferenceNode : public AbstractCallReferenceNode {
public:
   DLLLOCAL ResolvedCallReferenceNode(bool n_needs_eval = false, qore_type_t n_type = NT_FUNCREF);


   DLLLOCAL virtual AbstractQoreNode *exec(const QoreListNode *args, ExceptionSink *xsink) const = 0;

   DLLLOCAL virtual int64 bigIntExec(const QoreListNode *args, ExceptionSink *xsink) const {
      ReferenceHolder<AbstractQoreNode> rv(exec(args, xsink), xsink);
      return rv ? rv->getAsBigInt() : 0;
   }

   DLLLOCAL virtual int intExec(const QoreListNode *args, ExceptionSink *xsink) const {
      ReferenceHolder<AbstractQoreNode> rv(exec(args, xsink), xsink);
      return rv ? rv->getAsInt() : 0;
   }

   DLLLOCAL virtual bool boolExec(const QoreListNode *args, ExceptionSink *xsink) const {
      ReferenceHolder<AbstractQoreNode> rv(exec(args, xsink), xsink);
      return rv ? rv->getAsBool() : false;
   }

   DLLLOCAL virtual double floatExec(const QoreListNode *args, ExceptionSink *xsink) const {
      ReferenceHolder<AbstractQoreNode> rv(exec(args, xsink), xsink);
      return rv ? rv->getAsFloat() : 0.0;
   }


   DLLLOCAL virtual QoreProgram *getProgram() const;

   DLLLOCAL virtual class QoreFunction *getFunction() = 0;

   DLLLOCAL ResolvedCallReferenceNode *refRefSelf() const {
      ref();
      return const_cast<ResolvedCallReferenceNode *>(this);
   }
};

#endif