Qore Programming Language: include/qore/ReferenceNode.h (6585) Source File

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ReferenceNode.h
1 /* -*- mode: c++; indent-tabs-mode: nil -*- */
2 /*
3 ReferenceNode.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_REFERENCENODE_H
25
26 #define _QORE_REFERENCENODE_H
27
28 #include <qore/AbstractQoreNode.h>
29
31
37 class ReferenceNode : public AbstractQoreNode {
38 friend class RuntimeReferenceHelper;
39 friend class lvalue_ref;
40
41 private:
43 class lvalue_ref* priv;
44
45 DLLLOCAL ReferenceNode(lvalue_ref* p);
46
47 protected:
49 DLLEXPORT virtual AbstractQoreNode *evalImpl(ExceptionSink *xsink) const;
50
52 DLLEXPORT virtual AbstractQoreNode *evalImpl(bool &needs_deref, ExceptionSink *xsink) const;
53
55 DLLEXPORT virtual int64 bigIntEvalImpl(ExceptionSink *xsink) const;
56
58 DLLEXPORT virtual int integerEvalImpl(ExceptionSink *xsink) const;
59
61 DLLEXPORT virtual bool boolEvalImpl(ExceptionSink *xsink) const;
62
64 DLLEXPORT virtual double floatEvalImpl(ExceptionSink *xsink) const;
65
67 DLLEXPORT virtual ~ReferenceNode();
68
69 public:
71 DLLLOCAL ReferenceNode(AbstractQoreNode* exp, QoreObject* self, const void* lvalue_id);
72
74
80 DLLEXPORT virtual int getAsString(QoreString& str, int foff, ExceptionSink* xsink) const;
81
83
89 DLLEXPORT virtual QoreString *getAsString(bool& del, int foff, ExceptionSink* xsink) const;
90
92 DLLEXPORT virtual AbstractQoreNode *realCopy() const;
93
95 DLLEXPORT virtual bool is_equal_soft(const AbstractQoreNode *v, ExceptionSink* xsink) const;
96
98 DLLEXPORT virtual bool is_equal_hard(const AbstractQoreNode *v, ExceptionSink* xsink) const;
99
101 DLLEXPORT virtual const char *getTypeName() const;
102
103 DLLEXPORT virtual bool derefImpl(ExceptionSink* xsink);
104 };
105
106 #endif
ReferenceNode::integerEvalImpl
virtual DLLEXPORT int integerEvalImpl(ExceptionSink *xsink) const
returns the value of the reference as an int
ReferenceNode::getTypeName
virtual DLLEXPORT const char * getTypeName() const
returns the type name as a c string
ReferenceNode::derefImpl
virtual DLLEXPORT bool derefImpl(ExceptionSink *xsink)
decrements the reference count
AbstractQoreNode
The base class for all value and parse types in Qore expression trees.
Definition: AbstractQoreNode.h:47
ReferenceNode::boolEvalImpl
virtual DLLEXPORT bool boolEvalImpl(ExceptionSink *xsink) const
returns the value of the reference as a bool
ReferenceNode::is_equal_soft
virtual DLLEXPORT bool is_equal_soft(const AbstractQoreNode *v, ExceptionSink *xsink) const
compares the values
ReferenceNode::floatEvalImpl
virtual DLLEXPORT double floatEvalImpl(ExceptionSink *xsink) const
returns the value of the reference as a double
ReferenceNode::getAsString
virtual DLLEXPORT int getAsString(QoreString &str, int foff, ExceptionSink *xsink) const
concatenate the verbose string representation of the value to an existing QoreString ...
QoreString
Qore's string type supported by the QoreEncoding class.
Definition: QoreString.h:42
ReferenceNode::~ReferenceNode
virtual DLLEXPORT ~ReferenceNode()
frees all memory and destroys the object
ReferenceNode
parse type: reference to a lvalue expression
Definition: ReferenceNode.h:37
QoreObject
the implementation of Qore's object data type, reference counted, dynamically-allocated only ...
Definition: QoreObject.h:56
ExceptionSink
container for holding Qore-language exception information and also for registering a "thread_exit" ca...
Definition: ExceptionSink.h:35
ReferenceNode::bigIntEvalImpl
virtual DLLEXPORT int64 bigIntEvalImpl(ExceptionSink *xsink) const
returns the value of the reference as an int64
ReferenceNode::evalImpl
virtual DLLEXPORT AbstractQoreNode * evalImpl(ExceptionSink *xsink) const
returns the value of the reference; caller owns any reference count returned for non-NULL return valu...
ReferenceNode::is_equal_hard
virtual DLLEXPORT bool is_equal_hard(const AbstractQoreNode *v, ExceptionSink *xsink) const
compares the values
ReferenceNode::realCopy
virtual DLLEXPORT AbstractQoreNode * realCopy() const
returns a copy of the object