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81447b5b PP |
1 | # The MIT License (MIT) |
2 | # | |
f6a5e476 | 3 | # Copyright (c) 2017 Philippe Proulx <pproulx@efficios.com> |
81447b5b PP |
4 | # |
5 | # Permission is hereby granted, free of charge, to any person obtaining a copy | |
6 | # of this software and associated documentation files (the "Software"), to deal | |
7 | # in the Software without restriction, including without limitation the rights | |
8 | # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
9 | # copies of the Software, and to permit persons to whom the Software is | |
10 | # furnished to do so, subject to the following conditions: | |
11 | # | |
12 | # The above copyright notice and this permission notice shall be included in | |
13 | # all copies or substantial portions of the Software. | |
14 | # | |
15 | # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
16 | # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
17 | # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |
18 | # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
19 | # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
20 | # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | |
21 | # THE SOFTWARE. | |
22 | ||
23 | from bt2 import native_bt, object, utils | |
32656995 | 24 | import bt2.field_class |
81447b5b PP |
25 | import collections.abc |
26 | import functools | |
27 | import numbers | |
28 | import math | |
81447b5b PP |
29 | import bt2 |
30 | ||
31 | ||
27d97a3f SM |
32 | def _create_field_from_ptr(ptr, owner_ptr, owner_get_ref, owner_put_ref): |
33 | field_class_ptr = native_bt.field_borrow_class_const(ptr) | |
34 | utils._handle_ptr(field_class_ptr, "cannot get field object's class") | |
35 | typeid = native_bt.field_class_get_type(field_class_ptr) | |
36 | field = _TYPE_ID_TO_OBJ[typeid]._create_from_ptr_and_get_ref( | |
37 | ptr, owner_ptr, owner_get_ref, owner_put_ref) | |
81447b5b PP |
38 | return field |
39 | ||
40 | ||
4470d3a6 SM |
41 | # Get the "effective" field of `field`. If `field` is a variant, return the |
42 | # currently selected field. If `field` is of any other type, return `field` | |
43 | # directly. | |
81447b5b | 44 | |
4470d3a6 SM |
45 | def _get_leaf_field(field): |
46 | if not isinstance(field, _VariantField): | |
47 | return field | |
48 | ||
49 | return _get_leaf_field(field.selected_option) | |
81447b5b | 50 | |
80d037bc | 51 | |
4470d3a6 SM |
52 | class _Field(object._UniqueObject): |
53 | def __eq__(self, other): | |
80d037bc JG |
54 | other = _get_leaf_field(other) |
55 | return self._spec_eq(other) | |
56 | ||
81447b5b | 57 | @property |
32656995 | 58 | def field_class(self): |
e8d2391b SM |
59 | field_class_ptr = native_bt.field_borrow_class_const(self._ptr) |
60 | assert field_class_ptr is not None | |
61 | return bt2.field_class._create_field_class_from_ptr_and_get_ref(field_class_ptr) | |
81447b5b | 62 | |
dc78ca2f JG |
63 | def _repr(self): |
64 | raise NotImplementedError | |
65 | ||
66 | def __repr__(self): | |
4470d3a6 | 67 | return self._repr() |
dc78ca2f | 68 | |
81447b5b PP |
69 | |
70 | @functools.total_ordering | |
71 | class _NumericField(_Field): | |
72 | @staticmethod | |
73 | def _extract_value(other): | |
74 | if other is True or other is False: | |
75 | return other | |
76 | ||
77 | if isinstance(other, numbers.Integral): | |
78 | return int(other) | |
79 | ||
80 | if isinstance(other, numbers.Real): | |
81 | return float(other) | |
82 | ||
83 | if isinstance(other, numbers.Complex): | |
84 | return complex(other) | |
85 | ||
86 | raise TypeError("'{}' object is not a number object".format(other.__class__.__name__)) | |
87 | ||
88 | def __int__(self): | |
80d037bc | 89 | return int(self._value) |
81447b5b PP |
90 | |
91 | def __float__(self): | |
80d037bc | 92 | return float(self._value) |
81447b5b | 93 | |
dc78ca2f | 94 | def _repr(self): |
e100fef0 | 95 | return repr(self._value) |
81447b5b PP |
96 | |
97 | def __lt__(self, other): | |
98 | if not isinstance(other, numbers.Number): | |
99 | raise TypeError('unorderable types: {}() < {}()'.format(self.__class__.__name__, | |
100 | other.__class__.__name__)) | |
101 | ||
80d037bc | 102 | return self._value < float(other) |
81447b5b PP |
103 | |
104 | def __le__(self, other): | |
105 | if not isinstance(other, numbers.Number): | |
106 | raise TypeError('unorderable types: {}() <= {}()'.format(self.__class__.__name__, | |
107 | other.__class__.__name__)) | |
108 | ||
80d037bc | 109 | return self._value <= float(other) |
81447b5b | 110 | |
80d037bc | 111 | def _spec_eq(self, other): |
81447b5b | 112 | if not isinstance(other, numbers.Number): |
4470d3a6 | 113 | return NotImplemented |
81447b5b | 114 | |
80d037bc | 115 | return self._value == complex(other) |
81447b5b PP |
116 | |
117 | def __rmod__(self, other): | |
80d037bc | 118 | return self._extract_value(other) % self._value |
81447b5b PP |
119 | |
120 | def __mod__(self, other): | |
80d037bc | 121 | return self._value % self._extract_value(other) |
81447b5b PP |
122 | |
123 | def __rfloordiv__(self, other): | |
80d037bc | 124 | return self._extract_value(other) // self._value |
81447b5b PP |
125 | |
126 | def __floordiv__(self, other): | |
80d037bc | 127 | return self._value // self._extract_value(other) |
81447b5b PP |
128 | |
129 | def __round__(self, ndigits=None): | |
130 | if ndigits is None: | |
80d037bc | 131 | return round(self._value) |
81447b5b | 132 | else: |
80d037bc | 133 | return round(self._value, ndigits) |
81447b5b PP |
134 | |
135 | def __ceil__(self): | |
80d037bc | 136 | return math.ceil(self._value) |
81447b5b PP |
137 | |
138 | def __floor__(self): | |
80d037bc | 139 | return math.floor(self._value) |
81447b5b PP |
140 | |
141 | def __trunc__(self): | |
80d037bc | 142 | return int(self._value) |
81447b5b PP |
143 | |
144 | def __abs__(self): | |
80d037bc | 145 | return abs(self._value) |
81447b5b PP |
146 | |
147 | def __add__(self, other): | |
80d037bc | 148 | return self._value + self._extract_value(other) |
81447b5b PP |
149 | |
150 | def __radd__(self, other): | |
151 | return self.__add__(other) | |
152 | ||
153 | def __neg__(self): | |
80d037bc | 154 | return -self._value |
81447b5b PP |
155 | |
156 | def __pos__(self): | |
80d037bc | 157 | return +self._value |
81447b5b PP |
158 | |
159 | def __mul__(self, other): | |
80d037bc | 160 | return self._value * self._extract_value(other) |
81447b5b PP |
161 | |
162 | def __rmul__(self, other): | |
163 | return self.__mul__(other) | |
164 | ||
165 | def __truediv__(self, other): | |
80d037bc | 166 | return self._value / self._extract_value(other) |
81447b5b PP |
167 | |
168 | def __rtruediv__(self, other): | |
80d037bc | 169 | return self._extract_value(other) / self._value |
81447b5b PP |
170 | |
171 | def __pow__(self, exponent): | |
80d037bc | 172 | return self._value ** self._extract_value(exponent) |
81447b5b PP |
173 | |
174 | def __rpow__(self, base): | |
80d037bc | 175 | return self._extract_value(base) ** self._value |
81447b5b PP |
176 | |
177 | def __iadd__(self, other): | |
178 | self.value = self + other | |
179 | return self | |
180 | ||
181 | def __isub__(self, other): | |
182 | self.value = self - other | |
183 | return self | |
184 | ||
185 | def __imul__(self, other): | |
186 | self.value = self * other | |
187 | return self | |
188 | ||
189 | def __itruediv__(self, other): | |
190 | self.value = self / other | |
191 | return self | |
192 | ||
193 | def __ifloordiv__(self, other): | |
194 | self.value = self // other | |
195 | return self | |
196 | ||
197 | def __imod__(self, other): | |
198 | self.value = self % other | |
199 | return self | |
200 | ||
201 | def __ipow__(self, other): | |
202 | self.value = self ** other | |
203 | return self | |
204 | ||
205 | ||
206 | class _IntegralField(_NumericField, numbers.Integral): | |
207 | def __lshift__(self, other): | |
80d037bc | 208 | return self._value << self._extract_value(other) |
81447b5b PP |
209 | |
210 | def __rlshift__(self, other): | |
80d037bc | 211 | return self._extract_value(other) << self._value |
81447b5b PP |
212 | |
213 | def __rshift__(self, other): | |
80d037bc | 214 | return self._value >> self._extract_value(other) |
81447b5b PP |
215 | |
216 | def __rrshift__(self, other): | |
80d037bc | 217 | return self._extract_value(other) >> self._value |
81447b5b PP |
218 | |
219 | def __and__(self, other): | |
80d037bc | 220 | return self._value & self._extract_value(other) |
81447b5b PP |
221 | |
222 | def __rand__(self, other): | |
80d037bc | 223 | return self._extract_value(other) & self._value |
81447b5b PP |
224 | |
225 | def __xor__(self, other): | |
80d037bc | 226 | return self._value ^ self._extract_value(other) |
81447b5b PP |
227 | |
228 | def __rxor__(self, other): | |
80d037bc | 229 | return self._extract_value(other) ^ self._value |
81447b5b PP |
230 | |
231 | def __or__(self, other): | |
80d037bc | 232 | return self._value | self._extract_value(other) |
81447b5b PP |
233 | |
234 | def __ror__(self, other): | |
80d037bc | 235 | return self._extract_value(other) | self._value |
81447b5b PP |
236 | |
237 | def __invert__(self): | |
80d037bc | 238 | return ~self._value |
81447b5b PP |
239 | |
240 | def __ilshift__(self, other): | |
241 | self.value = self << other | |
242 | return self | |
243 | ||
244 | def __irshift__(self, other): | |
245 | self.value = self >> other | |
246 | return self | |
247 | ||
248 | def __iand__(self, other): | |
249 | self.value = self & other | |
250 | return self | |
251 | ||
252 | def __ixor__(self, other): | |
253 | self.value = self ^ other | |
254 | return self | |
255 | ||
256 | def __ior__(self, other): | |
257 | self.value = self | other | |
258 | return self | |
259 | ||
260 | ||
27d97a3f | 261 | class _IntegerField(_IntegralField, _Field): |
81447b5b PP |
262 | pass |
263 | ||
264 | ||
27d97a3f SM |
265 | class _UnsignedIntegerField(_IntegerField, _Field): |
266 | _NAME = 'Unsigned integer' | |
4470d3a6 | 267 | |
81447b5b PP |
268 | def _value_to_int(self, value): |
269 | if not isinstance(value, numbers.Real): | |
270 | raise TypeError('expecting a real number object') | |
271 | ||
272 | value = int(value) | |
27d97a3f | 273 | utils._check_uint64(value) |
81447b5b PP |
274 | |
275 | return value | |
276 | ||
277 | @property | |
80d037bc | 278 | def _value(self): |
27d97a3f | 279 | return native_bt.field_unsigned_integer_get_value(self._ptr) |
81447b5b | 280 | |
27d97a3f SM |
281 | def _set_value(self, value): |
282 | value = self._value_to_int(value) | |
283 | native_bt.field_unsigned_integer_set_value(self._ptr, value) | |
284 | ||
285 | value = property(fset=_set_value) | |
286 | ||
287 | ||
288 | class _SignedIntegerField(_IntegerField, _Field): | |
289 | _NAME = 'Signed integer' | |
4470d3a6 | 290 | |
27d97a3f SM |
291 | def _value_to_int(self, value): |
292 | if not isinstance(value, numbers.Real): | |
293 | raise TypeError('expecting a real number object') | |
80d037bc | 294 | |
27d97a3f SM |
295 | value = int(value) |
296 | utils._check_int64(value) | |
f6a5e476 | 297 | |
81447b5b PP |
298 | return value |
299 | ||
27d97a3f SM |
300 | @property |
301 | def _value(self): | |
302 | return native_bt.field_signed_integer_get_value(self._ptr) | |
303 | ||
80d037bc | 304 | def _set_value(self, value): |
81447b5b | 305 | value = self._value_to_int(value) |
27d97a3f | 306 | native_bt.field_signed_integer_set_value(self._ptr, value) |
81447b5b | 307 | |
80d037bc | 308 | value = property(fset=_set_value) |
81447b5b | 309 | |
5c8b3186 | 310 | |
27d97a3f SM |
311 | class _RealField(_NumericField, numbers.Real): |
312 | _NAME = 'Real' | |
81447b5b PP |
313 | |
314 | def _value_to_float(self, value): | |
315 | if not isinstance(value, numbers.Real): | |
316 | raise TypeError("expecting a real number object") | |
317 | ||
318 | return float(value) | |
319 | ||
320 | @property | |
80d037bc | 321 | def _value(self): |
27d97a3f | 322 | return native_bt.field_real_get_value(self._ptr) |
81447b5b | 323 | |
80d037bc | 324 | def _set_value(self, value): |
81447b5b | 325 | value = self._value_to_float(value) |
27d97a3f | 326 | native_bt.field_real_set_value(self._ptr, value) |
81447b5b | 327 | |
80d037bc | 328 | value = property(fset=_set_value) |
81447b5b | 329 | |
5c8b3186 | 330 | |
81447b5b | 331 | class _EnumerationField(_IntegerField): |
4470d3a6 SM |
332 | def _repr(self): |
333 | return '{} ({})'.format(self._value, ', '.join(self.labels)) | |
81447b5b PP |
334 | |
335 | @property | |
4470d3a6 SM |
336 | def labels(self): |
337 | ret, labels = self._get_mapping_labels(self._ptr) | |
338 | utils._handle_ret(ret, "cannot get label for enumeration field") | |
81447b5b | 339 | |
4470d3a6 SM |
340 | assert labels is not None |
341 | return labels | |
81447b5b | 342 | |
a310d6bd | 343 | |
4470d3a6 SM |
344 | class _UnsignedEnumerationField(_EnumerationField, _UnsignedIntegerField): |
345 | _NAME = 'Unsigned Enumeration' | |
346 | _get_mapping_labels = staticmethod(native_bt.field_unsigned_enumeration_get_mapping_labels) | |
80d037bc | 347 | |
80d037bc | 348 | |
4470d3a6 SM |
349 | class _SignedEnumerationField(_EnumerationField, _SignedIntegerField): |
350 | _NAME = 'Signed Enumeration' | |
351 | _get_mapping_labels = staticmethod(native_bt.field_signed_enumeration_get_mapping_labels) | |
81447b5b PP |
352 | |
353 | ||
354 | @functools.total_ordering | |
4470d3a6 | 355 | class _StringField(_Field): |
81447b5b PP |
356 | _NAME = 'String' |
357 | ||
358 | def _value_to_str(self, value): | |
359 | if isinstance(value, self.__class__): | |
80d037bc | 360 | value = value._value |
81447b5b PP |
361 | |
362 | if not isinstance(value, str): | |
363 | raise TypeError("expecting a 'str' object") | |
364 | ||
365 | return value | |
366 | ||
367 | @property | |
80d037bc | 368 | def _value(self): |
4470d3a6 | 369 | return native_bt.field_string_get_value(self._ptr) |
81447b5b | 370 | |
80d037bc | 371 | def _set_value(self, value): |
81447b5b | 372 | value = self._value_to_str(value) |
4470d3a6 | 373 | native_bt.field_string_set_value(self._ptr, value) |
81447b5b | 374 | |
80d037bc JG |
375 | value = property(fset=_set_value) |
376 | ||
377 | def _spec_eq(self, other): | |
81447b5b PP |
378 | try: |
379 | other = self._value_to_str(other) | |
4470d3a6 | 380 | except Exception: |
81447b5b PP |
381 | return False |
382 | ||
80d037bc | 383 | return self._value == other |
81447b5b PP |
384 | |
385 | def __le__(self, other): | |
80d037bc | 386 | return self._value <= self._value_to_str(other) |
81447b5b PP |
387 | |
388 | def __lt__(self, other): | |
80d037bc | 389 | return self._value < self._value_to_str(other) |
81447b5b PP |
390 | |
391 | def __bool__(self): | |
80d037bc | 392 | return bool(self._value) |
81447b5b | 393 | |
dc78ca2f | 394 | def _repr(self): |
89182b7e JG |
395 | return repr(self._value) |
396 | ||
81447b5b | 397 | def __str__(self): |
4470d3a6 | 398 | return str(self._value) |
81447b5b PP |
399 | |
400 | def __getitem__(self, index): | |
80d037bc | 401 | return self._value[index] |
81447b5b PP |
402 | |
403 | def __len__(self): | |
4470d3a6 | 404 | return native_bt.field_string_get_length(self._ptr) |
81447b5b PP |
405 | |
406 | def __iadd__(self, value): | |
407 | value = self._value_to_str(value) | |
839d52a5 | 408 | ret = native_bt.field_string_append(self._ptr, value) |
81447b5b PP |
409 | utils._handle_ret(ret, "cannot append to string field object's value") |
410 | return self | |
411 | ||
412 | ||
413 | class _ContainerField(_Field): | |
414 | def __bool__(self): | |
415 | return len(self) != 0 | |
416 | ||
417 | def __len__(self): | |
418 | count = self._count() | |
4470d3a6 | 419 | assert count >= 0 |
81447b5b PP |
420 | return count |
421 | ||
422 | def __delitem__(self, index): | |
423 | raise NotImplementedError | |
424 | ||
425 | ||
426 | class _StructureField(_ContainerField, collections.abc.MutableMapping): | |
427 | _NAME = 'Structure' | |
428 | ||
429 | def _count(self): | |
32656995 | 430 | return len(self.field_class) |
81447b5b | 431 | |
81447b5b | 432 | def __setitem__(self, key, value): |
f987e50a | 433 | # raises if key is somehow invalid |
81447b5b PP |
434 | field = self[key] |
435 | ||
81447b5b PP |
436 | # the field's property does the appropriate conversion or raises |
437 | # the appropriate exception | |
438 | field.value = value | |
439 | ||
81447b5b PP |
440 | def __iter__(self): |
441 | # same name iterator | |
32656995 | 442 | return iter(self.field_class) |
81447b5b | 443 | |
80d037bc JG |
444 | def _spec_eq(self, other): |
445 | try: | |
446 | if len(self) != len(other): | |
81447b5b PP |
447 | return False |
448 | ||
80d037bc JG |
449 | for self_key, self_value in self.items(): |
450 | if self_key not in other: | |
451 | return False | |
81447b5b | 452 | |
80d037bc | 453 | other_value = other[self_key] |
81447b5b | 454 | |
80d037bc JG |
455 | if self_value != other_value: |
456 | return False | |
457 | ||
458 | return True | |
4470d3a6 | 459 | except Exception: |
80d037bc | 460 | return False |
81447b5b | 461 | |
80d037bc | 462 | def _set_value(self, values): |
80d037bc JG |
463 | try: |
464 | for key, value in values.items(): | |
465 | self[key].value = value | |
4470d3a6 | 466 | except Exception: |
80d037bc | 467 | raise |
d5697082 | 468 | |
80d037bc | 469 | value = property(fset=_set_value) |
81447b5b | 470 | |
dc78ca2f | 471 | def _repr(self): |
797f4a78 JG |
472 | items = ['{}: {}'.format(repr(k), repr(v)) for k, v in self.items()] |
473 | return '{{{}}}'.format(', '.join(items)) | |
474 | ||
4470d3a6 SM |
475 | def __getitem__(self, key): |
476 | utils._check_str(key) | |
477 | field_ptr = native_bt.field_structure_borrow_member_field_by_name(self._ptr, key) | |
5c8b3186 | 478 | |
4470d3a6 SM |
479 | if field_ptr is None: |
480 | raise KeyError(key) | |
81447b5b | 481 | |
4470d3a6 SM |
482 | return _create_field_from_ptr(field_ptr, self._owner_ptr, |
483 | self._owner_get_ref, | |
484 | self._owner_put_ref) | |
f6a5e476 | 485 | |
4470d3a6 SM |
486 | def member_at_index(self, index): |
487 | utils._check_uint64(index) | |
f6a5e476 | 488 | |
4470d3a6 SM |
489 | if index >= len(self): |
490 | raise IndexError | |
491 | ||
492 | field_ptr = native_bt.field_structure_borrow_member_field_by_index(self._ptr, index) | |
493 | assert field_ptr is not None | |
494 | return _create_field_from_ptr(field_ptr, self._owner_ptr, | |
495 | self._owner_get_ref, | |
496 | self._owner_put_ref) | |
497 | ||
498 | ||
499 | class _VariantField(_ContainerField, _Field): | |
500 | _NAME = 'Variant' | |
81447b5b PP |
501 | |
502 | @property | |
4470d3a6 SM |
503 | def selected_option_index(self): |
504 | return native_bt.field_variant_get_selected_option_field_index(self._ptr) | |
81447b5b | 505 | |
4470d3a6 SM |
506 | @selected_option_index.setter |
507 | def selected_option_index(self, index): | |
508 | native_bt.field_variant_select_option_field(self._ptr, index) | |
f6a5e476 | 509 | |
4470d3a6 SM |
510 | @property |
511 | def selected_option(self): | |
512 | field_ptr = native_bt.field_variant_borrow_selected_option_field(self._ptr) | |
513 | utils._handle_ptr(field_ptr, "cannot get variant field's selected option") | |
81447b5b | 514 | |
4470d3a6 SM |
515 | return _create_field_from_ptr(field_ptr, self._owner_ptr, |
516 | self._owner_get_ref, | |
517 | self._owner_put_ref) | |
81447b5b | 518 | |
80d037bc | 519 | def _spec_eq(self, other): |
4470d3a6 SM |
520 | new_self = _get_leaf_field(self) |
521 | return new_self == other | |
f6a5e476 PP |
522 | |
523 | def __bool__(self): | |
4470d3a6 | 524 | raise NotImplementedError |
81447b5b | 525 | |
dc78ca2f | 526 | def __str__(self): |
4470d3a6 | 527 | return str(self.selected_option) |
dc78ca2f JG |
528 | |
529 | def _repr(self): | |
4470d3a6 | 530 | return repr(self.selected_option) |
80d037bc JG |
531 | |
532 | def _set_value(self, value): | |
4470d3a6 | 533 | self.selected_option.value = value |
80d037bc JG |
534 | |
535 | value = property(fset=_set_value) | |
81447b5b | 536 | |
5c8b3186 | 537 | |
4470d3a6 SM |
538 | class _ArrayField(_ContainerField, _Field): |
539 | ||
540 | def _get_length(self): | |
541 | return native_bt.field_array_get_length(self._ptr) | |
542 | ||
543 | length = property(fget=_get_length) | |
544 | ||
81447b5b PP |
545 | def __getitem__(self, index): |
546 | if not isinstance(index, numbers.Integral): | |
547 | raise TypeError("'{}' is not an integral number object: invalid index".format(index.__class__.__name__)) | |
548 | ||
549 | index = int(index) | |
550 | ||
551 | if index < 0 or index >= len(self): | |
552 | raise IndexError('{} field object index is out of range'.format(self._NAME)) | |
553 | ||
4470d3a6 | 554 | field_ptr = native_bt.field_array_borrow_element_field_by_index(self._ptr, index) |
f6a5e476 | 555 | assert(field_ptr) |
4470d3a6 SM |
556 | return _create_field_from_ptr(field_ptr, self._owner_ptr, |
557 | self._owner_get_ref, | |
558 | self._owner_put_ref) | |
81447b5b PP |
559 | |
560 | def __setitem__(self, index, value): | |
561 | # we can only set numbers and strings | |
562 | if not isinstance(value, (numbers.Number, _StringField, str)): | |
563 | raise TypeError('expecting number or string object') | |
564 | ||
565 | # raises if index is somehow invalid | |
566 | field = self[index] | |
567 | ||
568 | if not isinstance(field, (_NumericField, _StringField)): | |
569 | raise TypeError('can only set the value of a number or string field') | |
570 | ||
571 | # the field's property does the appropriate conversion or raises | |
572 | # the appropriate exception | |
573 | field.value = value | |
574 | ||
575 | def insert(self, index, value): | |
576 | raise NotImplementedError | |
577 | ||
80d037bc JG |
578 | def _spec_eq(self, other): |
579 | try: | |
580 | if len(self) != len(other): | |
81447b5b PP |
581 | return False |
582 | ||
80d037bc JG |
583 | for self_field, other_field in zip(self, other): |
584 | if self_field != other_field: | |
585 | return False | |
d5697082 | 586 | |
80d037bc | 587 | return True |
4470d3a6 | 588 | except Exception: |
80d037bc | 589 | return False |
d5697082 | 590 | |
dc78ca2f | 591 | def _repr(self): |
7e06e400 JG |
592 | return '[{}]'.format(', '.join([repr(v) for v in self])) |
593 | ||
81447b5b | 594 | |
4470d3a6 SM |
595 | class _StaticArrayField(_ArrayField, _Field): |
596 | _NAME = 'Static array' | |
81447b5b PP |
597 | |
598 | def _count(self): | |
4470d3a6 | 599 | return native_bt.field_array_get_length(self._ptr) |
81447b5b | 600 | |
80d037bc JG |
601 | def _set_value(self, values): |
602 | if len(self) != len(values): | |
603 | raise ValueError( | |
604 | 'expected length of value and array field to match') | |
605 | ||
4470d3a6 SM |
606 | for index, value in enumerate(values): |
607 | if value is not None: | |
608 | self[index].value = value | |
80d037bc JG |
609 | |
610 | value = property(fset=_set_value) | |
611 | ||
81447b5b | 612 | |
4470d3a6 SM |
613 | class _DynamicArrayField(_ArrayField, _Field): |
614 | _NAME = 'Dynamic array' | |
81447b5b PP |
615 | |
616 | def _count(self): | |
4470d3a6 | 617 | return self.length |
81447b5b | 618 | |
4470d3a6 SM |
619 | def _set_length(self, length): |
620 | utils._check_uint64(length) | |
621 | ret = native_bt.field_dynamic_array_set_length(self._ptr, length) | |
622 | utils._handle_ret(ret, "cannot set dynamic array length") | |
81447b5b | 623 | |
4470d3a6 | 624 | length = property(fget=_ArrayField._get_length, fset=_set_length) |
81447b5b | 625 | |
80d037bc | 626 | def _set_value(self, values): |
4470d3a6 SM |
627 | if len(values) != self.length: |
628 | self.length = len(values) | |
80d037bc | 629 | |
4470d3a6 SM |
630 | for index, value in enumerate(values): |
631 | if value is not None: | |
632 | self[index].value = value | |
80d037bc JG |
633 | |
634 | value = property(fset=_set_value) | |
81447b5b | 635 | |
5c8b3186 | 636 | |
81447b5b | 637 | _TYPE_ID_TO_OBJ = { |
27d97a3f SM |
638 | native_bt.FIELD_CLASS_TYPE_UNSIGNED_INTEGER: _UnsignedIntegerField, |
639 | native_bt.FIELD_CLASS_TYPE_SIGNED_INTEGER: _SignedIntegerField, | |
640 | native_bt.FIELD_CLASS_TYPE_REAL: _RealField, | |
4470d3a6 SM |
641 | native_bt.FIELD_CLASS_TYPE_UNSIGNED_ENUMERATION: _UnsignedEnumerationField, |
642 | native_bt.FIELD_CLASS_TYPE_SIGNED_ENUMERATION: _SignedEnumerationField, | |
27d97a3f SM |
643 | native_bt.FIELD_CLASS_TYPE_STRING: _StringField, |
644 | native_bt.FIELD_CLASS_TYPE_STRUCTURE: _StructureField, | |
4470d3a6 SM |
645 | native_bt.FIELD_CLASS_TYPE_STATIC_ARRAY: _StaticArrayField, |
646 | native_bt.FIELD_CLASS_TYPE_DYNAMIC_ARRAY: _DynamicArrayField, | |
647 | native_bt.FIELD_CLASS_TYPE_VARIANT: _VariantField, | |
81447b5b | 648 | } |