IWORKValueContext.h
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1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2 /*
3  * This file is part of the libetonyek project.
4  *
5  * This Source Code Form is subject to the terms of the Mozilla Public
6  * License, v. 2.0. If a copy of the MPL was not distributed with this
7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8  */
9 
10 #ifndef IWORKVALUECONTEXT_H_INCLUDED
11 #define IWORKVALUECONTEXT_H_INCLUDED
12 
13 #include <boost/optional.hpp>
14 
15 #include "IWORKXMLContextBase.h"
16 
17 namespace libetonyek
18 {
19 
20 template<typename Type, class NestedParser, unsigned Id, unsigned Id2=0>
22 {
23 public:
24  IWORKValueContext(IWORKXMLParserState &state, boost::optional<Type> &value)
26  , m_value()
27  , m_optional(value)
28  , m_direct(nullptr)
29  , m_isSet(nullptr)
30  {
31  }
32 
33  IWORKValueContext(IWORKXMLParserState &state, Type &value, bool *isSet = nullptr)
35  , m_value()
37  , m_direct(&value)
38  , m_isSet(isSet)
39  {
40  }
41 
42 protected:
43  void set(const Type &value)
44  {
45  m_value = value;
46  }
47 
48  IWORKXMLContextPtr_t element(const int name) override
49  {
50  if (name == Id || (Id2 && name == Id2))
51  return std::make_shared<NestedParser>(getState(), m_value);
52  ETONYEK_DEBUG_MSG(("IWORKXMLContextPtr_t::element: found unexpected element %d\n", name));
53  return IWORKXMLContextPtr_t();
54  }
55 
56  void endOfElement() override
57  {
58  if (m_value)
59  {
60  if (m_direct)
61  {
62  *m_direct = get(m_value);
63  if (m_isSet)
64  *m_isSet |= true;
65  }
66  else
67  {
69  }
70  }
71  }
72 
73 private:
76 
77  boost::optional<Type> m_value;
78  boost::optional<Type> &m_optional;
79  Type *const m_direct;
80  bool *const m_isSet;
81 };
82 
83 }
84 
85 #endif // IWORKVALUECONTEXT_H_INCLUDED
86 
87 /* vim:set shiftwidth=2 softtabstop=2 expandtab: */
#define ETONYEK_DEBUG_MSG(M)
Definition: libetonyek_utils.h:54
std::shared_ptr< IWORKXMLContext > IWORKXMLContextPtr_t
Definition: IWORKXMLContext.h:18
IWORKValueContext & operator=(const IWORKValueContext &)
void set(const Type &value)
Definition: IWORKValueContext.h:43
Definition: IWORKToken.h:631
State & getState()
Definition: IWORKXMLContextBase.h:43
boost::optional< Type > m_value
Definition: IWORKValueContext.h:77
boost::optional< Type > & m_optional
Definition: IWORKValueContext.h:78
Definition: IWORKValueContext.h:21
bool *const m_isSet
Definition: IWORKValueContext.h:80
const char * name
Definition: IWORKToken.cpp:43
Type *const m_direct
Definition: IWORKValueContext.h:79
Definition: IWORKXMLContextBase.h:27
Definition: IWORKXMLParserState.h:31
IWORKValueContext(IWORKXMLParserState &state, Type &value, bool *isSet=nullptr)
Definition: IWORKValueContext.h:33
IWORKValueContext(IWORKXMLParserState &state, boost::optional< Type > &value)
Definition: IWORKValueContext.h:24
IWORKXMLContextPtr_t element(const int name) override
Definition: IWORKValueContext.h:48
void endOfElement() override
Definition: IWORKValueContext.h:56

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