|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
|
#ifndef DataFormats_Common_RefVectorHolderBase_h
#define DataFormats_Common_RefVectorHolderBase_h
#include "DataFormats/Common/interface/RefHolderBase.h"
#include "FWCore/Utilities/interface/EDMException.h"
#include <cstddef>
#include <memory>
namespace edm {
template <typename T>
class RefToBase;
namespace reftobase {
class RefVectorHolderBase {
public:
virtual ~RefVectorHolderBase() {}
using size_type = size_t;
using value_type = RefHolderBase;
void swap(RefVectorHolderBase&) {} // nothing to swap
virtual bool empty() const = 0;
virtual size_type size() const = 0;
virtual void clear() = 0;
virtual void reserve(size_type n) = 0;
virtual ProductID id() const = 0;
virtual EDProductGetter const* productGetter() const = 0;
virtual RefVectorHolderBase* clone() const = 0;
virtual RefVectorHolderBase* cloneEmpty() const = 0;
virtual void push_back(RefHolderBase const* r) = 0;
// the following structure is public
// to allow dictionary to compile
// protected:
struct const_iterator_imp {
using difference_type = ptrdiff_t;
const_iterator_imp() {}
virtual ~const_iterator_imp() {}
virtual const_iterator_imp* clone() const = 0;
virtual void increase() = 0;
virtual void decrease() = 0;
virtual void increase(difference_type d) = 0;
virtual void decrease(difference_type d) = 0;
virtual bool equal_to(const_iterator_imp const*) const = 0;
virtual bool less_than(const_iterator_imp const*) const = 0;
virtual void assign(const_iterator_imp const*) = 0;
virtual std::shared_ptr<RefHolderBase> deref() const = 0;
virtual difference_type difference(const_iterator_imp const*) const = 0;
};
struct const_iterator {
using iterator_category = std::random_access_iterator_tag;
using value_type = std::shared_ptr<RefHolderBase>;
using pointer = void**;
using reference = void*&;
using difference_type = std::ptrdiff_t;
const_iterator() : i(nullptr) {}
const_iterator(const_iterator_imp* it) : i(it) {}
const_iterator(const_iterator const& it) : i(it.isValid() ? it.i->clone() : nullptr) {}
~const_iterator() { delete i; }
const_iterator& operator=(const_iterator const& it) {
if (isInvalid())
i = it.i;
else
i->assign(it.i);
return *this;
}
const_iterator& operator++() {
if (isInvalid())
Exception::throwThis(errors::InvalidReference,
"Trying to increment an inavlid RefToBaseVector<T>::const_iterator\n");
i->increase();
return *this;
}
const_iterator operator++(int) {
if (isInvalid())
Exception::throwThis(errors::InvalidReference,
"Trying to postincrement an inavlid RefToBaseVector<T>::const_iterator\n");
const_iterator ci = *this;
i->increase();
return ci;
}
const_iterator& operator--() {
if (isInvalid())
Exception::throwThis(errors::InvalidReference,
"Trying to decrement an inavlid RefToBaseVector<T>::const_iterator\n");
i->decrease();
return *this;
}
const_iterator operator--(int) {
if (isInvalid())
Exception::throwThis(errors::InvalidReference,
"Trying to postdecrement an inavlid RefToBaseVector<T>::const_iterator\n");
const_iterator ci = *this;
i->decrease();
return ci;
}
difference_type operator-(const_iterator const& o) const {
if (isInvalid() && o.isInvalid())
return 0;
if (isInvalid() || o.isInvalid())
Exception::throwThis(errors::InvalidReference,
"Trying to compute difference with an inavlid RefToBaseVector<T>::const_iterator\n");
return i->difference(o.i);
}
const_iterator operator+(difference_type n) const {
if (isInvalid())
Exception::throwThis(errors::InvalidReference,
"Trying to compute sum with an inavlid RefToBaseVector<T>::const_iterator\n");
const_iterator_imp* ii = i->clone();
ii->increase(n);
return const_iterator(ii);
}
const_iterator operator-(difference_type n) const {
if (isInvalid())
Exception::throwThis(errors::InvalidReference,
"Trying to compute difference with an inavlid RefToBaseVector<T>::const_iterator\n");
const_iterator_imp* ii = i->clone();
ii->decrease(n);
return const_iterator(ii);
}
bool operator<(const_iterator const& o) const {
if (isInvalid() && o.isInvalid())
return false;
if (isInvalid() || o.isInvalid())
Exception::throwThis(errors::InvalidReference,
"Trying to compute < operator with an inavlid RefToBaseVector<T>::const_iterator\n");
return i->less_than(o.i);
}
bool operator==(const const_iterator& ci) const {
if (isInvalid() && ci.isInvalid())
return true;
if (isInvalid() || ci.isInvalid())
return false;
return i->equal_to(ci.i);
}
bool operator!=(const const_iterator& ci) const {
if (isInvalid() && ci.isInvalid())
return false;
if (isInvalid() || ci.isInvalid())
return true;
return !i->equal_to(ci.i);
}
value_type operator*() const {
if (isInvalid())
Exception::throwThis(errors::InvalidReference,
"Trying to dereference an inavlid RefToBaseVector<T>::const_iterator\n");
return i->deref();
}
const_iterator& operator-=(difference_type d) {
if (isInvalid())
Exception::throwThis(errors::InvalidReference,
"Trying to decrement an inavlid RefToBaseVector<T>::const_iterator\n");
i->decrease(d);
return *this;
}
const_iterator& operator+=(difference_type d) {
if (isInvalid())
Exception::throwThis(errors::InvalidReference,
"Trying to increment an inavlid RefToBaseVector<T>::const_iterator\n");
i->increase(d);
return *this;
}
bool isValid() const { return i != nullptr; }
bool isInvalid() const { return i == nullptr; }
private:
const_iterator_imp* i;
};
virtual const_iterator begin() const = 0;
virtual const_iterator end() const = 0;
template <typename T>
RefToBase<T> getRef(size_t idx) const;
virtual size_t keyForIndex(size_t idx) const = 0;
/// Checks if product collection is in memory or available
/// in the Event. No type checking is done.
virtual bool isAvailable() const = 0;
private:
virtual std::shared_ptr<reftobase::RefHolderBase> refBase(size_t idx) const = 0;
};
template <typename T>
RefToBase<T> RefVectorHolderBase::getRef(size_t idx) const {
std::shared_ptr<reftobase::RefHolderBase> rb = refBase(idx);
return RefToBase<T>(rb);
}
// Free swap function
inline void swap(RefVectorHolderBase& lhs, RefVectorHolderBase& rhs) { lhs.swap(rhs); }
} // namespace reftobase
} // namespace edm
#endif
|