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
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
|
/*=============================================================================
Copyright (c) 2008 Francois Barel
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)
=============================================================================*/
#include <boost/detail/lightweight_test.hpp>
#include <boost/type_traits/is_same.hpp>
#include <boost/spirit/include/qi_operator.hpp>
#include <boost/spirit/include/qi_char.hpp>
#include <boost/spirit/include/phoenix_core.hpp>
#include <boost/spirit/include/phoenix_operator.hpp>
#include <iterator>
#include "test.hpp"
namespace testns
{
BOOST_SPIRIT_TERMINAL_NAME_EX( ops, ops_type )
///////////////////////////////////////////////////////////////////////////
// Parsers
///////////////////////////////////////////////////////////////////////////
template <typename T1>
struct ops_1_parser
: boost::spirit::qi::primitive_parser<ops_1_parser<T1> >
{
ops_1_parser(T1 t1)
: t1(t1)
{}
template <typename Context, typename Iterator>
struct attribute
{
typedef int type; // Number of parsed chars.
};
template <typename Iterator, typename Context
, typename Skipper, typename Attribute>
bool parse(Iterator& first, Iterator const& last
, Context& /*context*/, Skipper const& skipper
, Attribute& attr) const
{
boost::spirit::qi::skip_over(first, last, skipper);
int count = 0;
Iterator it = first;
typedef typename std::iterator_traits<Iterator>::value_type Char;
for (T1 t = 0; t < t1; t++, count++)
if (it == last || *it++ != Char('+'))
return false;
boost::spirit::traits::assign_to(count, attr);
first = it;
return true;
}
template <typename Context>
boost::spirit::qi::info what(Context& /*context*/) const
{
return boost::spirit::qi::info("ops_1");
}
const T1 t1;
// silence MSVC warning C4512: assignment operator could not be generated
BOOST_DELETED_FUNCTION(ops_1_parser& operator= (ops_1_parser const&));
};
template <typename T1, typename T2>
struct ops_2_parser
: boost::spirit::qi::primitive_parser<ops_2_parser<T1, T2> >
{
ops_2_parser(T1 t1, T2 t2)
: t1(t1)
, t2(t2)
{}
template <typename Context, typename Iterator>
struct attribute
{
typedef int type; // Number of parsed chars.
};
template <typename Iterator, typename Context
, typename Skipper, typename Attribute>
bool parse(Iterator& first, Iterator const& last
, Context& /*context*/, Skipper const& skipper
, Attribute& attr) const
{
boost::spirit::qi::skip_over(first, last, skipper);
int count = 0;
Iterator it = first;
typedef typename std::iterator_traits<Iterator>::value_type Char;
for (T1 t = 0; t < t1; t++, count++)
if (it == last || *it++ != Char('+'))
return false;
for (T2 t = 0; t < t2; t++, count++)
if (it == last || *it++ != Char('-'))
return false;
boost::spirit::traits::assign_to(count, attr);
first = it;
return true;
}
template <typename Context>
boost::spirit::qi::info what(Context& /*context*/) const
{
return boost::spirit::qi::info("ops_2");
}
const T1 t1;
const T2 t2;
// silence MSVC warning C4512: assignment operator could not be generated
BOOST_DELETED_FUNCTION(ops_2_parser& operator= (ops_2_parser const&));
};
template <typename T1, typename T2, typename T3>
struct ops_3_parser
: boost::spirit::qi::primitive_parser<ops_3_parser<T1, T2, T3> >
{
ops_3_parser(T1 t1, T2 t2, T3 t3)
: t1(t1)
, t2(t2)
, t3(t3)
{}
template <typename Context, typename Iterator>
struct attribute
{
typedef int type; // Number of parsed chars.
};
template <typename Iterator, typename Context
, typename Skipper, typename Attribute>
bool parse(Iterator& first, Iterator const& last
, Context& /*context*/, Skipper const& skipper
, Attribute& attr) const
{
boost::spirit::qi::skip_over(first, last, skipper);
int count = 0;
Iterator it = first;
typedef typename std::iterator_traits<Iterator>::value_type Char;
for (T1 t = 0; t < t1; t++, count++)
if (it == last || *it++ != Char('+'))
return false;
for (T2 t = 0; t < t2; t++, count++)
if (it == last || *it++ != Char('-'))
return false;
for (T3 t = 0; t < t3; t++, count++)
if (it == last || *it++ != Char('*'))
return false;
boost::spirit::traits::assign_to(count, attr);
first = it;
return true;
}
template <typename Context>
boost::spirit::qi::info what(Context& /*context*/) const
{
return boost::spirit::qi::info("ops_3");
}
const T1 t1;
const T2 t2;
const T3 t3;
// silence MSVC warning C4512: assignment operator could not be generated
BOOST_DELETED_FUNCTION(ops_3_parser& operator= (ops_3_parser const&));
};
}
namespace boost { namespace spirit
{
///////////////////////////////////////////////////////////////////////////
// Enablers
///////////////////////////////////////////////////////////////////////////
template <typename T1>
struct use_terminal<qi::domain
, terminal_ex<testns::tag::ops, fusion::vector1<T1> > >
: mpl::true_ {};
template <typename T1, typename T2>
struct use_terminal<qi::domain
, terminal_ex<testns::tag::ops, fusion::vector2<T1, T2> > >
: mpl::true_ {};
template <typename T1, typename T2, typename T3>
struct use_terminal<qi::domain
, terminal_ex<testns::tag::ops, fusion::vector3<T1, T2, T3> > >
: mpl::true_ {};
template <>
struct use_lazy_terminal<qi::domain, testns::tag::ops, 1>
: mpl::true_ {};
template <>
struct use_lazy_terminal<qi::domain, testns::tag::ops, 2>
: mpl::true_ {};
template <>
struct use_lazy_terminal<qi::domain, testns::tag::ops, 3>
: mpl::true_ {};
}}
namespace boost { namespace spirit { namespace qi
{
///////////////////////////////////////////////////////////////////////////
// Parser generators: make_xxx function (objects)
///////////////////////////////////////////////////////////////////////////
template <typename Modifiers, typename T1>
struct make_primitive<
terminal_ex<testns::tag::ops, fusion::vector1<T1> >
, Modifiers>
{
typedef testns::ops_1_parser<T1> result_type;
template <typename Terminal>
result_type operator()(const Terminal& term, unused_type) const
{
return result_type(
fusion::at_c<0>(term.args)
);
}
};
template <typename Modifiers, typename T1, typename T2>
struct make_primitive<
terminal_ex<testns::tag::ops, fusion::vector2<T1, T2> >
, Modifiers>
{
typedef testns::ops_2_parser<T1, T2> result_type;
template <typename Terminal>
result_type operator()(const Terminal& term, unused_type) const
{
return result_type(
fusion::at_c<0>(term.args)
, fusion::at_c<1>(term.args)
);
}
};
template <typename Modifiers, typename T1, typename T2, typename T3>
struct make_primitive<
terminal_ex<testns::tag::ops, fusion::vector3<T1, T2, T3> >
, Modifiers>
{
typedef testns::ops_3_parser<T1, T2, T3> result_type;
template <typename Terminal>
result_type operator()(const Terminal& term, unused_type) const
{
return result_type(
fusion::at_c<0>(term.args)
, fusion::at_c<1>(term.args)
, fusion::at_c<2>(term.args)
);
}
};
}}}
namespace testns
{
template <typename T1, typename T>
void check_type_1(const T& /*t*/)
{
BOOST_STATIC_ASSERT(( boost::is_same<T
, typename boost::spirit::terminal<testns::tag::ops>::result<T1>::type >::value ));
}
template <typename T1, typename T2, typename T>
void check_type_2(const T& /*t*/)
{
BOOST_STATIC_ASSERT(( boost::is_same<T
, typename boost::spirit::terminal<testns::tag::ops>::result<T1, T2>::type >::value ));
}
template <typename T1, typename T2, typename T3, typename T>
void check_type_3(const T& /*t*/)
{
BOOST_STATIC_ASSERT(( boost::is_same<T
, typename boost::spirit::terminal<testns::tag::ops>::result<T1, T2, T3>::type >::value ));
}
}
int
main()
{
using spirit_test::test_attr;
using spirit_test::test;
using testns::ops;
using testns::check_type_1;
using testns::check_type_2;
using testns::check_type_3;
{ // immediate args
int c = 0;
#define IP1 ops(2)
check_type_1<int>(IP1);
BOOST_TEST(test_attr("++/", IP1 >> '/', c) && c == 2);
c = 0;
#define IP2 ops(2, 3)
check_type_2<int, int>(IP2);
BOOST_TEST(test_attr("++---/", IP2 >> '/', c) && c == 5);
c = 0;
#define IP3 ops(2, 3, 4)
check_type_3<int, int, int>(IP3);
BOOST_TEST(!test("++---***/", IP3 >> '/'));
#define IP4 ops(2, 3, 4)
check_type_3<int, int, int>(IP4);
BOOST_TEST(test_attr("++---****/", IP4 >> '/', c) && c == 9);
}
using boost::phoenix::val;
using boost::phoenix::actor;
using boost::phoenix::expression::value;
{ // all lazy args
int c = 0;
#define LP1 ops(val(1))
check_type_1<value<int>::type>(LP1);
BOOST_TEST(test_attr("+/", LP1 >> '/', c) && c == 1);
c = 0;
#define LP2 ops(val(1), val(4))
check_type_2<value<int>::type, value<int>::type>(LP2);
BOOST_TEST(test_attr("+----/", LP2 >> '/', c) && c == 5);
c = 0;
#define LP3 ops(val((char)2), val(3.), val(4))
check_type_3<value<char>::type, value<double>::type, value<int>::type>(LP3);
BOOST_TEST(!test("++---***/", LP3 >> '/'));
#define LP4 ops(val(1), val(2), val(3))
check_type_3<value<int>::type, value<int>::type, value<int>::type>(LP4);
BOOST_TEST(test_attr("+--***/", LP4 >> '/', c) && c == 6);
}
{ // mixed immediate and lazy args
namespace fusion = boost::fusion;
namespace phx = boost::phoenix;
int c = 0;
#define MP1 ops(val(3), 2)
check_type_2<value<int>::type, int>(MP1);
BOOST_TEST(test_attr("+++--/", MP1 >> '/', c) && c == 5);
c = 0;
#define MP2 ops(4, val(1))
check_type_2<int, value<int>::type>(MP2);
BOOST_TEST(test_attr("++++-/", MP2 >> '/', c) && c == 5);
c = 0;
#define MP3 ops(2, val(2), val(2))
check_type_3<int, value<int>::type, value<int>::type>(MP3);
BOOST_TEST(!test("++-**/", MP3 >> '/'));
#define MP4 ops(2, val(2), 2)
check_type_3<int, value<int>::type, int>(MP4);
BOOST_TEST(test_attr("++--**/", MP4 >> '/', c) && c == 6);
c = 0;
#define MP5 ops(val(5) - val(3), 2, val(2))
check_type_3<phx::expression::minus<value<int>::type, value<int>::type>::type, int, value<int>::type>(MP5);
BOOST_TEST(test_attr("++--**/", MP5 >> '/', c) && c == 6);
}
return boost::report_errors();
}
|
