All Classes Files Functions Variables Typedefs Enumerations Enumerator Macros Groups Pages
QoreTypeSafeReferenceHelper.h
/* -*- mode: c++; indent-tabs-mode: nil -*- */
/*
QoreTypeSafeReferenceHelper.h
Qore Programming Language
Copyright 2003 - 2013 David Nichols
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef _QORE_QORETYPESAFEREFERENCEHELPER_H
#define _QORE_QORETYPESAFEREFERENCEHELPER_H
class QoreTypeSafeReferenceHelper {
private:
DLLLOCAL QoreTypeSafeReferenceHelper(const QoreTypeSafeReferenceHelper&);
DLLLOCAL QoreTypeSafeReferenceHelper& operator=(const QoreTypeSafeReferenceHelper&);
DLLLOCAL void *operator new(size_t);
struct qore_type_safe_ref_helper_priv_t *priv;
public:
DLLEXPORT QoreTypeSafeReferenceHelper(const ReferenceNode *ref, ExceptionSink *xsink);
DLLEXPORT QoreTypeSafeReferenceHelper(const ReferenceNode *ref, AutoVLock &vl, ExceptionSink *xsink);
DLLEXPORT ~QoreTypeSafeReferenceHelper();
DLLEXPORT operator bool() const;
DLLEXPORT qore_type_t getType() const;
DLLEXPORT const char* getTypeName() const;
DLLEXPORT AbstractQoreNode *getUnique(ExceptionSink *xsink);
DLLEXPORT int assign(AbstractQoreNode *val);
DLLEXPORT int assign(AbstractQoreNode *val, ExceptionSink *xsink);
DLLEXPORT int assignBigInt(int64 v);
DLLEXPORT int assignFloat(double v);
DLLEXPORT const AbstractQoreNode *getValue() const;
DLLEXPORT void swap(QoreTypeSafeReferenceHelper &other);
};
#ifndef _QORE_LIB_INTERN
typedef QoreTypeSafeReferenceHelper ReferenceHelper;
#endif
#endif
AutoVLock
AutoVLock is a container for safely managing global variable and object lock handovers, required for functions accessing global variables and object data where locking is necessary.
Definition: AutoVLock.h:72
QoreTypeSafeReferenceHelper::swap
DLLEXPORT void swap(QoreTypeSafeReferenceHelper &other)
swaps the values of two references
AbstractQoreNode
The base class for all value and parse types in Qore expression trees.
Definition: AbstractQoreNode.h:47
QoreTypeSafeReferenceHelper::getType
DLLEXPORT qore_type_t getType() const
returns the type of the reference&#39;s value
QoreTypeSafeReferenceHelper::assign
DLLEXPORT int assign(AbstractQoreNode *val)
assigns a value to the reference, assumes the reference is valid
qore_type_t
signed short qore_type_t
used to identify unique Qore data and parse types (descendents of AbstractQoreNode) ...
Definition: common.h:59
QoreTypeSafeReferenceHelper::getUnique
DLLEXPORT AbstractQoreNode * getUnique(ExceptionSink *xsink)
returns a pointer to the value with a unique reference count (so it can be updated in place)...
QoreTypeSafeReferenceHelper::~QoreTypeSafeReferenceHelper
DLLEXPORT ~QoreTypeSafeReferenceHelper()
destroys the object
ReferenceNode
parse type: reference to a lvalue expression
Definition: ReferenceNode.h:37
QoreTypeSafeReferenceHelper::assignBigInt
DLLEXPORT int assignBigInt(int64 v)
assigns an integer value to the reference
ExceptionSink
container for holding Qore-language exception information and also for registering a &quot;thread_exit&quot; ca...
Definition: ExceptionSink.h:35
QoreTypeSafeReferenceHelper
helper class to manage variable references passed to functions and class methods, stack only...
Definition: QoreTypeSafeReferenceHelper.h:49
QoreTypeSafeReferenceHelper::assignFloat
DLLEXPORT int assignFloat(double v)
assigns an integer value to the reference
QoreTypeSafeReferenceHelper::getTypeName
DLLEXPORT const char * getTypeName() const
returns the type name of the reference&#39;s value
QoreTypeSafeReferenceHelper::getValue
DLLEXPORT const AbstractQoreNode * getValue() const
returns a constant pointer to the reference&#39;s value