Skip to content
Navigation Menu
{{ message }}
-
Notifications
You must be signed in to change notification settings - Fork 221
Expand file tree
/
Copy pathoperators.hpp
More file actions
374 lines (343 loc) · 13.9 KB
/
operators.hpp
File metadata and controls
374 lines (343 loc) · 13.9 KB
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
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
// Copyright David Abrahams 2002.
// Distributed under the Boost Software License, Version 1.0. (See
// accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
#ifndef OPERATORS_DWA2002530_HPP
# define OPERATORS_DWA2002530_HPP
# include <boost/python/detail/prefix.hpp>
# include <boost/python/def_visitor.hpp>
# include <boost/python/converter/arg_to_python.hpp>
# include <boost/python/detail/operator_id.hpp>
# include <boost/python/detail/not_specified.hpp>
# include <boost/python/back_reference.hpp>
# include <boost/mpl/if.hpp>
# include <boost/mpl/eval_if.hpp>
# include <boost/python/self.hpp>
# include <boost/python/other.hpp>
# include <boost/lexical_cast.hpp>
# include <boost/python/refcount.hpp>
# include <boost/python/detail/unwrap_wrapper.hpp>
# include <string>
# include <complex>
namespace boost { namespace python {
namespace detail
{
// This is essentially the old v1 to_python(). It will be eliminated
// once the public interface for to_python is settled on.
template <class T>
PyObject* convert_result(T const& x)
{
return converter::arg_to_python<T>(x).release();
}
// Operator implementation template declarations. The nested apply
// declaration here keeps MSVC6 happy.
template <operator_id> struct operator_l
{
template <class L, class R> struct apply;
};
template <operator_id> struct operator_r
{
template <class L, class R> struct apply;
};
template <operator_id> struct operator_1
{
template <class T> struct apply;
};
// MSVC6 doesn't want us to do this sort of inheritance on a nested
// class template, so we use this layer of indirection to avoid
// ::template<...> on the nested apply functions below
template <operator_id id, class L, class R>
struct operator_l_inner
: operator_l<id>::template apply<L,R>
{};
template <operator_id id, class L, class R>
struct operator_r_inner
: operator_r<id>::template apply<L,R>
{};
template <operator_id id, class T>
struct operator_1_inner
: operator_1<id>::template apply<T>
{};
// Define three different binary_op templates which take care of
// these cases:
// self op self
// self op R
// L op self
//
// The inner apply metafunction is used to adjust the operator to
// the class type being defined. Inheritance of the outer class is
// simply used to provide convenient access to the operation's
// name().
// self op self
template <operator_id id>
struct binary_op : operator_l<id>
{
template <class T>
struct apply : operator_l_inner<id,T,T>
{
};
};
// self op R
template <operator_id id, class R>
struct binary_op_l : operator_l<id>
{
template <class T>
struct apply : operator_l_inner<id,T,R>
{
};
};
// L op self
template <operator_id id, class L>
struct binary_op_r : operator_r<id>
{
template <class T>
struct apply : operator_r_inner<id,L,T>
{
};
};
template <operator_id id>
struct unary_op : operator_1<id>
{
template <class T>
struct apply : operator_1_inner<id,T>
{
};
};
// This type is what actually gets returned from operators used on
// self_t
template <operator_id id, class L = not_specified, class R = not_specified>
struct operator_
: def_visitor<operator_<id,L,R> >
{
private:
template <class ClassT>
void visit(ClassT& cl) const
{
typedef typename mpl::eval_if<
is_same<L,self_t>
, mpl::if_<
is_same<R,self_t>
, binary_op<id>
, binary_op_l<
id
, BOOST_DEDUCED_TYPENAME unwrap_other<R>::type
>
>
, mpl::if_<
is_same<L,not_specified>
, unary_op<id>
, binary_op_r<
id
, BOOST_DEDUCED_TYPENAME unwrap_other<L>::type
>
>
>::type generator;
cl.def(
generator::name()
, &generator::template apply<
BOOST_DEDUCED_TYPENAME ClassT::wrapped_type
>::execute
);
}
friend class python::def_visitor_access;
};
}
# define BOOST_PYTHON_BINARY_OPERATION(id, rid, expr) \
namespace detail \
{ \
template <> \
struct operator_l<op_##id> \
{ \
template <class L, class R> \
struct apply \
{ \
typedef typename unwrap_wrapper_<L>::type lhs; \
typedef typename unwrap_wrapper_<R>::type rhs; \
static PyObject* execute(lhs& l, rhs const& r) \
{ \
return detail::convert_result(expr); \
} \
}; \
static char const* name() { return "__" #id "__"; } \
}; \
\
template <> \
struct operator_r<op_##id> \
{ \
template <class L, class R> \
struct apply \
{ \
typedef typename unwrap_wrapper_<L>::type lhs; \
typedef typename unwrap_wrapper_<R>::type rhs; \
static PyObject* execute(rhs& r, lhs const& l) \
{ \
return detail::convert_result(expr); \
} \
}; \
static char const* name() { return "__" #rid "__"; } \
}; \
}
# define BOOST_PYTHON_BINARY_OPERATOR(id, rid, op) \
BOOST_PYTHON_BINARY_OPERATION(id, rid, l op r) \
namespace self_ns \
{ \
template <class L, class R> \
inline detail::operator_<detail::op_##id,L,R> \
operator op(L const&, R const&) \
{ \
return detail::operator_<detail::op_##id,L,R>(); \
} \
}
BOOST_PYTHON_BINARY_OPERATOR(add, radd, +)
BOOST_PYTHON_BINARY_OPERATOR(sub, rsub, -)
BOOST_PYTHON_BINARY_OPERATOR(mul, rmul, *)
#if PY_VERSION_HEX >= 0x03000000
BOOST_PYTHON_BINARY_OPERATOR(truediv, rtruediv, /)
#else
BOOST_PYTHON_BINARY_OPERATOR(div, rdiv, /)
#endif
BOOST_PYTHON_BINARY_OPERATOR(mod, rmod, %)
BOOST_PYTHON_BINARY_OPERATOR(lshift, rlshift, <<)
BOOST_PYTHON_BINARY_OPERATOR(rshift, rrshift, >>)
BOOST_PYTHON_BINARY_OPERATOR(and, rand, &)
BOOST_PYTHON_BINARY_OPERATOR(xor, rxor, ^)
BOOST_PYTHON_BINARY_OPERATOR(or, ror, |)
BOOST_PYTHON_BINARY_OPERATOR(gt, lt, >)
BOOST_PYTHON_BINARY_OPERATOR(ge, le, >=)
BOOST_PYTHON_BINARY_OPERATOR(lt, gt, <)
BOOST_PYTHON_BINARY_OPERATOR(le, ge, <=)
BOOST_PYTHON_BINARY_OPERATOR(eq, eq, ==)
BOOST_PYTHON_BINARY_OPERATOR(ne, ne, !=)
# undef BOOST_PYTHON_BINARY_OPERATOR
// pow isn't an operator in C++; handle it specially.
BOOST_PYTHON_BINARY_OPERATION(pow, rpow, pow(l,r))
# undef BOOST_PYTHON_BINARY_OPERATION
namespace self_ns
{
# ifndef BOOST_NO_ARGUMENT_DEPENDENT_LOOKUP
template <class L, class R>
inline detail::operator_<detail::op_pow,L,R>
pow(L const&, R const&)
{
return detail::operator_<detail::op_pow,L,R>();
}
# else
// When there's no argument-dependent lookup, we need these
// overloads to handle the case when everything is imported into the
// global namespace. Note that the plain overload below does /not/
// take const& arguments. This is needed by MSVC6 at least, or it
// complains of ambiguities, since there's no partial ordering.
inline detail::operator_<detail::op_pow,self_t,self_t>
pow(self_t, self_t)
{
return detail::operator_<detail::op_pow,self_t,self_t>();
}
template <class R>
inline detail::operator_<detail::op_pow,self_t,R>
pow(self_t const&, R const&)
{
return detail::operator_<detail::op_pow,self_t,R>();
}
template <class L>
inline detail::operator_<detail::op_pow,L,self_t>
pow(L const&, self_t const&)
{
return detail::operator_<detail::op_pow,L,self_t>();
}
# endif
}
# define BOOST_PYTHON_INPLACE_OPERATOR(id, op) \
namespace detail \
{ \
template <> \
struct operator_l<op_##id> \
{ \
template <class L, class R> \
struct apply \
{ \
typedef typename unwrap_wrapper_<L>::type lhs; \
typedef typename unwrap_wrapper_<R>::type rhs; \
static PyObject* \
execute(back_reference<lhs&> l, rhs const& r) \
{ \
l.get() op r; \
return python::incref(l.source().ptr()); \
} \
}; \
static char const* name() { return "__" #id "__"; } \
}; \
} \
namespace self_ns \
{ \
template <class R> \
inline detail::operator_<detail::op_##id,self_t,R> \
operator op(self_t const&, R const&) \
{ \
return detail::operator_<detail::op_##id,self_t,R>(); \
} \
}
BOOST_PYTHON_INPLACE_OPERATOR(iadd,+=)
BOOST_PYTHON_INPLACE_OPERATOR(isub,-=)
BOOST_PYTHON_INPLACE_OPERATOR(imul,*=)
BOOST_PYTHON_INPLACE_OPERATOR(idiv,/=)
BOOST_PYTHON_INPLACE_OPERATOR(imod,%=)
BOOST_PYTHON_INPLACE_OPERATOR(ilshift,<<=)
BOOST_PYTHON_INPLACE_OPERATOR(irshift,>>=)
BOOST_PYTHON_INPLACE_OPERATOR(iand,&=)
BOOST_PYTHON_INPLACE_OPERATOR(ixor,^=)
BOOST_PYTHON_INPLACE_OPERATOR(ior,|=)
# define BOOST_PYTHON_UNARY_OPERATOR(id, op, func_name) \
namespace detail \
{ \
template <> \
struct operator_1<op_##id> \
{ \
template <class T> \
struct apply \
{ \
typedef typename unwrap_wrapper_<T>::type self_t; \
static PyObject* execute(self_t& x) \
{ \
return detail::convert_result(op(x)); \
} \
}; \
static char const* name() { return "__" #id "__"; } \
}; \
} \
namespace self_ns \
{ \
inline detail::operator_<detail::op_##id> \
func_name(self_t const&) \
{ \
return detail::operator_<detail::op_##id>(); \
} \
}
# undef BOOST_PYTHON_INPLACE_OPERATOR
BOOST_PYTHON_UNARY_OPERATOR(neg, -, operator-)
BOOST_PYTHON_UNARY_OPERATOR(pos, +, operator+)
BOOST_PYTHON_UNARY_OPERATOR(abs, abs, abs)
BOOST_PYTHON_UNARY_OPERATOR(invert, ~, operator~)
#if PY_VERSION_HEX >= 0x03000000
BOOST_PYTHON_UNARY_OPERATOR(bool, !!, operator!)
#else
BOOST_PYTHON_UNARY_OPERATOR(nonzero, !!, operator!)
#endif
BOOST_PYTHON_UNARY_OPERATOR(int, long, int_)
BOOST_PYTHON_UNARY_OPERATOR(long, PyLong_FromLong, long_)
BOOST_PYTHON_UNARY_OPERATOR(float, double, float_)
BOOST_PYTHON_UNARY_OPERATOR(complex, std::complex<double>, complex_)
BOOST_PYTHON_UNARY_OPERATOR(str, lexical_cast<std::string>, str)
BOOST_PYTHON_UNARY_OPERATOR(repr, lexical_cast<std::string>, repr)
# undef BOOST_PYTHON_UNARY_OPERATOR
}} // namespace boost::python
# ifdef BOOST_NO_ARGUMENT_DEPENDENT_LOOKUP
using boost::python::self_ns::abs;
using boost::python::self_ns::int_;
using boost::python::self_ns::long_;
using boost::python::self_ns::float_;
using boost::python::self_ns::complex_;
using boost::python::self_ns::str;
using boost::python::self_ns::repr;
using boost::python::self_ns::pow;
# endif
#endif // OPERATORS_DWA2002530_HPP
You can’t perform that action at this time.