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
193
194
195
196
197
198
199
200
201
202
203
204
|
# HG changeset patch
# User Lukas Heinrich <lukas.heinrich@gmail.com>
# Date 1430606843 14400
# Node ID 325f89b7b72922e9add9ca9dd0f7ca4a6c83bf00
# Parent e4fd953257e0d38511f2177de7ffaef662358af2
add incoming/outgoing generators for GenVertex
diff --git a/hepmc/generators.i b/hepmc/generators.i
new file mode 100644
--- /dev/null
+++ b/hepmc/generators.i
@@ -0,0 +1,171 @@
+/*!
+ * \file generators.i
+ * \author Seth R. Johnson
+ * \brief Define generator/iterator for any type
+
+Example:
+\code
+ SETUP_GENERATOR( std::vector<Cell>::const_iterator )
+ ADD_GENERATOR( Mesh, cells,
+ std::vector<Cell>::const_iterator, Cell, beginCells, endCells)
+\endcode
+would be a method to add a \c cells generator method method to the Python class
+\c Mesh, when the C++ class \c Mesh has a \c std::vector<Cell> accessed through
+methods \c beginCells and \c endCells.
+
+The macro \c ADD_GENERATOR_P would be if the underlying storage were \c
+std::vector<Cell*> instead.
+
+Alternatively, for containers of regular objects that provide \c begin(), \c end(), and \c const_iterator, you can use the \c ADD_CONTAINER_ITERATOR macro:
+\code
+ADD_CONTAINER_ITERATOR( QuadratureSet )
+\endcode
+
+\section License
+
+Copyright (c) 2010, Seth R. Johnson
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+ * Redistributions of source code must retain the above copyright notice, this
+ list of conditions and the following disclaimer.
+ * Redistributions in binary form must reproduce the above copyright notice,
+ this list of conditions and the following disclaimer in the documentation
+ and/or other materials provided with the distribution.
+ * Neither the name of the this project nor the names of its contributors
+ may be used to endorse or promote products derived from this software
+ without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+ This material is based upon work supported under a National Science
+ Foundation Graduate Research Fellowship. Any opinions, findings, conclusions
+ or recommendations expressed in this publication are those of the author
+ and do not necessarily reflect the views of the National Science
+ Foundation.
+*/
+#ifndef tools_SWIG_generators_i
+#define tools_SWIG_generators_i
+/*----------------------------------------------------------------------------*/
+
+// Add a Python class to provide iterator objects
+%insert("python") %{
+class GenericIterator:
+ def __init__(self, begin_iter_method, deref_method, incr_method):
+ self.it = begin_iter_method()
+ self.incr = incr_method
+ self.deref = deref_method
+
+ def __iter__(self):
+ return self
+
+ def next(self):
+ obj = self.deref( self.it )
+ if obj is not None:
+ self.incr( self.it )
+ return obj
+ else:
+ raise StopIteration
+%}
+
+//============== GENERIC GENERATOR/ITERATOR WRAPPER SUPPORT ============
+//! Thin wrapper for incrementing a certain type of iterator
+// only need to define once per iterator type, and we can use the same name
+// thanks to overloading (even though this may decrease efficiency)
+%define SETUP_GENERATOR( ITERATOR... )
+%inline %{
+void _iter_incr( ITERATOR* iter )
+{
+ ++(*iter);
+}
+%}
+%enddef
+
+/*----------------------------------------------------------------------------*/
+// Internal method for adding common parts of the generator
+%define PYTRT_BASE_ADD_GENERATOR( CLASS, PYMETHOD, ITERATOR, CBEGIN )
+ %extend CLASS {
+%insert("python") %{
+ def PYMETHOD(self):
+ "Returns an iterator for PYMETHOD."
+ return GenericIterator(
+ self._begin_ ## PYMETHOD,
+ self._deref_ ## PYMETHOD,
+ _iter_incr
+ )
+%}
+// get the first element in the vector
+ITERATOR* _begin_ ## PYMETHOD()
+{
+ return new ITERATOR( ($self)->CBEGIN() );
+}
+ }
+%enddef
+/*----------------------------------------------------------------------------*/
+// If the dereferenced iterator is an object
+%define ADD_GENERATOR( CLASS, PYMETHOD, ITERATOR, RVALUE, CBEGIN, CEND )
+
+// add the python and begin method
+PYTRT_BASE_ADD_GENERATOR( CLASS, PYMETHOD, ITERATOR, CBEGIN )
+
+ %extend CLASS {
+//! Dereference the iterator; return NULL if at the end
+const RVALUE* _deref_ ## PYMETHOD ## ( const ITERATOR* iter )
+{
+ // if at the end, return NULL
+ if (*iter == ($self)->CEND() ) {
+ return NULL;
+ }
+ // otherwise, return the POINTER to the dereferenced iterator
+ return &(**iter);
+}
+ }
+%enddef
+/*----------------------------------------------------------------------------*/
+// If the dereferenced iterator is a pointer
+%define ADD_GENERATOR_P( CLASS, PYMETHOD, ITERATOR, RVALUE, CBEGIN, CEND )
+
+// add the python and begin method
+PYTRT_BASE_ADD_GENERATOR( CLASS, PYMETHOD, ITERATOR, CBEGIN )
+
+ %extend CLASS {
+//! Dereference the iterator; return NULL if at the end
+const RVALUE* _deref_ ## PYMETHOD ## ( const ITERATOR* iter )
+{
+ // if at the end, return NULL
+ if (*iter == ($self)->CEND() ) {
+ return NULL;
+ }
+ // otherwise, return the dereferenced iterator (a pointer)
+ return **iter;
+}
+ }
+%enddef
+/*----------------------------------------------------------------------------*/
+//! For a regular container with "begin" and "end" and "size"
+%define ADD_CONTAINER_ITERATOR( CLASS )
+ SETUP_GENERATOR( CLASS::const_iterator );
+ ADD_GENERATOR( CLASS, __iter__,
+ CLASS ## ::const_iterator, CLASS ## ::value_type,
+ begin, end)
+ %extend CLASS {
+ %insert("python") %{
+ def __len__(self):
+ return self.size()
+ %}
+ }
+%enddef
+
+/*============================================================================*/
+#endif
+
diff --git a/hepmc/hepmcwrap.i b/hepmc/hepmcwrap.i
--- a/hepmc/hepmcwrap.i
+++ b/hepmc/hepmcwrap.i
@@ -1,5 +1,7 @@
%module hepmcwrap
+%include generators.i
+
%{
#include "HepMC/GenEvent.h"
#include "HepMC/GenVertex.h"
@@ -251,3 +253,9 @@
return ss.str();
}
}
+
+SETUP_GENERATOR( std::vector< HepMC::GenParticle* >::const_iterator )
+ADD_GENERATOR_P( HepMC::GenVertex, incoming,
+std::vector< HepMC::GenParticle* >::const_iterator, HepMC::GenParticle, particles_in_const_begin, particles_in_const_end)
+ADD_GENERATOR_P( HepMC::GenVertex, outgoing,
+std::vector< HepMC::GenParticle* >::const_iterator, HepMC::GenParticle, particles_out_const_begin, particles_out_const_end)
|