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ReferenceArgumentHelper.h
1 /* -*- mode: c++; indent-tabs-mode: nil -*- */
2 /*
3 ReferenceArgumentHelper.h
4
5 Qore Programming Language
6
7 Copyright 2003 - 2013 David Nichols
8
9 This library is free software; you can redistribute it and/or
10 modify it under the terms of the GNU Lesser General Public
11 License as published by the Free Software Foundation; either
12 version 2.1 of the License, or (at your option) any later version.
13
14 This library is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 Lesser General Public License for more details.
18
19 You should have received a copy of the GNU Lesser General Public
20 License along with this library; if not, write to the Free Software
21 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
22 */
23
24 #ifndef _QORE_REFERENCEARGUMENTHELPER_H
25
26 #define _QORE_REFERENCEARGUMENTHELPER_H
27
29
49 class ReferenceArgumentHelper {
50 private:
51 struct lvih_intern *priv;
52
54 DLLLOCAL ReferenceArgumentHelper(const ReferenceArgumentHelper&);
55
57 DLLLOCAL ReferenceArgumentHelper& operator=(const ReferenceArgumentHelper&);
58
59 public:
61
65 DLLEXPORT ReferenceArgumentHelper(AbstractQoreNode *val, ExceptionSink *xsink);
66
68 DLLEXPORT ~ReferenceArgumentHelper();
69
71
74 DLLEXPORT AbstractQoreNode *getArg() const;
75
77
80 DLLEXPORT AbstractQoreNode *getOutputValue();
81 };
82
83 #endif
AbstractQoreNode
The base class for all value and parse types in Qore expression trees.
Definition: AbstractQoreNode.h:47
ReferenceArgumentHelper
allows a reference to be passed as an argument to Qore code
Definition: ReferenceArgumentHelper.h:49
ReferenceArgumentHelper::getOutputValue
DLLEXPORT AbstractQoreNode * getOutputValue()
returns the value of the reference and leaves the reference empty, the caller owns the reference retu...
ExceptionSink
container for holding Qore-language exception information and also for registering a &quot;thread_exit&quot; ca...
Definition: ExceptionSink.h:35
ReferenceArgumentHelper::~ReferenceArgumentHelper
DLLEXPORT ~ReferenceArgumentHelper()
frees all memory still managed by the object
ReferenceArgumentHelper::getArg
DLLEXPORT AbstractQoreNode * getArg() const
returns the reference to the fake local variable for use in an argument list, the caller owns the ref...