| 1 | # The MIT License (MIT) |
| 2 | # |
| 3 | # Copyright (c) 2017 Philippe Proulx <pproulx@efficios.com> |
| 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 |
| 24 | from bt2 import field_class as bt2_field_class |
| 25 | import collections.abc |
| 26 | import functools |
| 27 | import numbers |
| 28 | import math |
| 29 | |
| 30 | |
| 31 | def _create_field_from_ptr(ptr, owner_ptr, owner_get_ref, owner_put_ref): |
| 32 | field_class_ptr = native_bt.field_borrow_class_const(ptr) |
| 33 | typeid = native_bt.field_class_get_type(field_class_ptr) |
| 34 | field = _TYPE_ID_TO_OBJ[typeid]._create_from_ptr_and_get_ref( |
| 35 | ptr, owner_ptr, owner_get_ref, owner_put_ref |
| 36 | ) |
| 37 | return field |
| 38 | |
| 39 | |
| 40 | # Get the "effective" field of `field`. If `field` is a variant, return |
| 41 | # the currently selected field. If `field` is an option, return the |
| 42 | # content field. If `field` is of any other type, return `field` |
| 43 | # directly. |
| 44 | |
| 45 | |
| 46 | def _get_leaf_field(field): |
| 47 | if isinstance(field, _VariantField): |
| 48 | return _get_leaf_field(field.selected_option) |
| 49 | |
| 50 | if isinstance(field, _OptionField): |
| 51 | return _get_leaf_field(field.field) |
| 52 | |
| 53 | return field |
| 54 | |
| 55 | |
| 56 | class _Field(object._UniqueObject): |
| 57 | def __eq__(self, other): |
| 58 | other = _get_leaf_field(other) |
| 59 | return self._spec_eq(other) |
| 60 | |
| 61 | @property |
| 62 | def cls(self): |
| 63 | field_class_ptr = native_bt.field_borrow_class_const(self._ptr) |
| 64 | assert field_class_ptr is not None |
| 65 | return bt2_field_class._create_field_class_from_ptr_and_get_ref(field_class_ptr) |
| 66 | |
| 67 | def _repr(self): |
| 68 | raise NotImplementedError |
| 69 | |
| 70 | def __repr__(self): |
| 71 | return self._repr() |
| 72 | |
| 73 | |
| 74 | class _BitArrayField(_Field): |
| 75 | _NAME = 'Bit array' |
| 76 | |
| 77 | @property |
| 78 | def value_as_integer(self): |
| 79 | return native_bt.field_bit_array_get_value_as_integer(self._ptr) |
| 80 | |
| 81 | @value_as_integer.setter |
| 82 | def value_as_integer(self, value): |
| 83 | utils._check_uint64(value) |
| 84 | native_bt.field_bit_array_set_value_as_integer(self._ptr, value) |
| 85 | |
| 86 | def _spec_eq(self, other): |
| 87 | if type(other) is not type(self): |
| 88 | return False |
| 89 | |
| 90 | return self.value_as_integer == other.value_as_integer |
| 91 | |
| 92 | def _repr(self): |
| 93 | return repr(self.value_as_integer) |
| 94 | |
| 95 | def __str__(self): |
| 96 | return str(self.value_as_integer) |
| 97 | |
| 98 | def __len__(self): |
| 99 | return self.cls.length |
| 100 | |
| 101 | |
| 102 | @functools.total_ordering |
| 103 | class _NumericField(_Field): |
| 104 | @staticmethod |
| 105 | def _extract_value(other): |
| 106 | if isinstance(other, _BoolField) or isinstance(other, bool): |
| 107 | return bool(other) |
| 108 | |
| 109 | if isinstance(other, numbers.Integral): |
| 110 | return int(other) |
| 111 | |
| 112 | if isinstance(other, numbers.Real): |
| 113 | return float(other) |
| 114 | |
| 115 | if isinstance(other, numbers.Complex): |
| 116 | return complex(other) |
| 117 | |
| 118 | raise TypeError( |
| 119 | "'{}' object is not a number object".format(other.__class__.__name__) |
| 120 | ) |
| 121 | |
| 122 | def __int__(self): |
| 123 | return int(self._value) |
| 124 | |
| 125 | def __float__(self): |
| 126 | return float(self._value) |
| 127 | |
| 128 | def _repr(self): |
| 129 | return repr(self._value) |
| 130 | |
| 131 | def __lt__(self, other): |
| 132 | if not isinstance(other, numbers.Number): |
| 133 | raise TypeError( |
| 134 | 'unorderable types: {}() < {}()'.format( |
| 135 | self.__class__.__name__, other.__class__.__name__ |
| 136 | ) |
| 137 | ) |
| 138 | |
| 139 | return self._value < self._extract_value(other) |
| 140 | |
| 141 | def _spec_eq(self, other): |
| 142 | try: |
| 143 | return self._value == self._extract_value(other) |
| 144 | except Exception: |
| 145 | return False |
| 146 | |
| 147 | def __rmod__(self, other): |
| 148 | return self._extract_value(other) % self._value |
| 149 | |
| 150 | def __mod__(self, other): |
| 151 | return self._value % self._extract_value(other) |
| 152 | |
| 153 | def __rfloordiv__(self, other): |
| 154 | return self._extract_value(other) // self._value |
| 155 | |
| 156 | def __floordiv__(self, other): |
| 157 | return self._value // self._extract_value(other) |
| 158 | |
| 159 | def __round__(self, ndigits=None): |
| 160 | if ndigits is None: |
| 161 | return round(self._value) |
| 162 | else: |
| 163 | return round(self._value, ndigits) |
| 164 | |
| 165 | def __ceil__(self): |
| 166 | return math.ceil(self._value) |
| 167 | |
| 168 | def __floor__(self): |
| 169 | return math.floor(self._value) |
| 170 | |
| 171 | def __trunc__(self): |
| 172 | return int(self._value) |
| 173 | |
| 174 | def __abs__(self): |
| 175 | return abs(self._value) |
| 176 | |
| 177 | def __add__(self, other): |
| 178 | return self._value + self._extract_value(other) |
| 179 | |
| 180 | def __radd__(self, other): |
| 181 | return self.__add__(other) |
| 182 | |
| 183 | def __neg__(self): |
| 184 | return -self._value |
| 185 | |
| 186 | def __pos__(self): |
| 187 | return +self._value |
| 188 | |
| 189 | def __mul__(self, other): |
| 190 | return self._value * self._extract_value(other) |
| 191 | |
| 192 | def __rmul__(self, other): |
| 193 | return self.__mul__(other) |
| 194 | |
| 195 | def __truediv__(self, other): |
| 196 | return self._value / self._extract_value(other) |
| 197 | |
| 198 | def __rtruediv__(self, other): |
| 199 | return self._extract_value(other) / self._value |
| 200 | |
| 201 | def __pow__(self, exponent): |
| 202 | return self._value ** self._extract_value(exponent) |
| 203 | |
| 204 | def __rpow__(self, base): |
| 205 | return self._extract_value(base) ** self._value |
| 206 | |
| 207 | |
| 208 | class _IntegralField(_NumericField, numbers.Integral): |
| 209 | def __lshift__(self, other): |
| 210 | return self._value << self._extract_value(other) |
| 211 | |
| 212 | def __rlshift__(self, other): |
| 213 | return self._extract_value(other) << self._value |
| 214 | |
| 215 | def __rshift__(self, other): |
| 216 | return self._value >> self._extract_value(other) |
| 217 | |
| 218 | def __rrshift__(self, other): |
| 219 | return self._extract_value(other) >> self._value |
| 220 | |
| 221 | def __and__(self, other): |
| 222 | return self._value & self._extract_value(other) |
| 223 | |
| 224 | def __rand__(self, other): |
| 225 | return self._extract_value(other) & self._value |
| 226 | |
| 227 | def __xor__(self, other): |
| 228 | return self._value ^ self._extract_value(other) |
| 229 | |
| 230 | def __rxor__(self, other): |
| 231 | return self._extract_value(other) ^ self._value |
| 232 | |
| 233 | def __or__(self, other): |
| 234 | return self._value | self._extract_value(other) |
| 235 | |
| 236 | def __ror__(self, other): |
| 237 | return self._extract_value(other) | self._value |
| 238 | |
| 239 | def __invert__(self): |
| 240 | return ~self._value |
| 241 | |
| 242 | |
| 243 | class _BoolField(_IntegralField, _Field): |
| 244 | _NAME = 'Boolean' |
| 245 | |
| 246 | def __bool__(self): |
| 247 | return self._value |
| 248 | |
| 249 | def _value_to_bool(self, value): |
| 250 | if isinstance(value, _BoolField): |
| 251 | value = value._value |
| 252 | |
| 253 | if not isinstance(value, bool): |
| 254 | raise TypeError( |
| 255 | "'{}' object is not a 'bool' or '_BoolField' object".format( |
| 256 | value.__class__ |
| 257 | ) |
| 258 | ) |
| 259 | |
| 260 | return value |
| 261 | |
| 262 | @property |
| 263 | def _value(self): |
| 264 | return bool(native_bt.field_bool_get_value(self._ptr)) |
| 265 | |
| 266 | def _set_value(self, value): |
| 267 | value = self._value_to_bool(value) |
| 268 | native_bt.field_bool_set_value(self._ptr, value) |
| 269 | |
| 270 | value = property(fset=_set_value) |
| 271 | |
| 272 | |
| 273 | class _IntegerField(_IntegralField, _Field): |
| 274 | pass |
| 275 | |
| 276 | |
| 277 | class _UnsignedIntegerField(_IntegerField, _Field): |
| 278 | _NAME = 'Unsigned integer' |
| 279 | |
| 280 | def _value_to_int(self, value): |
| 281 | if not isinstance(value, numbers.Integral): |
| 282 | raise TypeError('expecting an integral number object') |
| 283 | |
| 284 | value = int(value) |
| 285 | utils._check_uint64(value) |
| 286 | |
| 287 | return value |
| 288 | |
| 289 | @property |
| 290 | def _value(self): |
| 291 | return native_bt.field_integer_unsigned_get_value(self._ptr) |
| 292 | |
| 293 | def _set_value(self, value): |
| 294 | value = self._value_to_int(value) |
| 295 | native_bt.field_integer_unsigned_set_value(self._ptr, value) |
| 296 | |
| 297 | value = property(fset=_set_value) |
| 298 | |
| 299 | |
| 300 | class _SignedIntegerField(_IntegerField, _Field): |
| 301 | _NAME = 'Signed integer' |
| 302 | |
| 303 | def _value_to_int(self, value): |
| 304 | if not isinstance(value, numbers.Integral): |
| 305 | raise TypeError('expecting an integral number object') |
| 306 | |
| 307 | value = int(value) |
| 308 | utils._check_int64(value) |
| 309 | |
| 310 | return value |
| 311 | |
| 312 | @property |
| 313 | def _value(self): |
| 314 | return native_bt.field_integer_signed_get_value(self._ptr) |
| 315 | |
| 316 | def _set_value(self, value): |
| 317 | value = self._value_to_int(value) |
| 318 | native_bt.field_integer_signed_set_value(self._ptr, value) |
| 319 | |
| 320 | value = property(fset=_set_value) |
| 321 | |
| 322 | |
| 323 | class _RealField(_NumericField, numbers.Real): |
| 324 | _NAME = 'Real' |
| 325 | |
| 326 | def _value_to_float(self, value): |
| 327 | if not isinstance(value, numbers.Real): |
| 328 | raise TypeError("expecting a real number object") |
| 329 | |
| 330 | return float(value) |
| 331 | |
| 332 | @property |
| 333 | def _value(self): |
| 334 | return native_bt.field_real_get_value(self._ptr) |
| 335 | |
| 336 | def _set_value(self, value): |
| 337 | value = self._value_to_float(value) |
| 338 | native_bt.field_real_set_value(self._ptr, value) |
| 339 | |
| 340 | value = property(fset=_set_value) |
| 341 | |
| 342 | |
| 343 | class _EnumerationField(_IntegerField): |
| 344 | def _repr(self): |
| 345 | return '{} ({})'.format(self._value, ', '.join(self.labels)) |
| 346 | |
| 347 | @property |
| 348 | def labels(self): |
| 349 | status, labels = self._get_mapping_labels(self._ptr) |
| 350 | utils._handle_func_status(status, "cannot get label for enumeration field") |
| 351 | |
| 352 | assert labels is not None |
| 353 | return labels |
| 354 | |
| 355 | |
| 356 | class _UnsignedEnumerationField(_EnumerationField, _UnsignedIntegerField): |
| 357 | _NAME = 'Unsigned Enumeration' |
| 358 | _get_mapping_labels = staticmethod( |
| 359 | native_bt.field_enumeration_unsigned_get_mapping_labels |
| 360 | ) |
| 361 | |
| 362 | |
| 363 | class _SignedEnumerationField(_EnumerationField, _SignedIntegerField): |
| 364 | _NAME = 'Signed Enumeration' |
| 365 | _get_mapping_labels = staticmethod( |
| 366 | native_bt.field_enumeration_signed_get_mapping_labels |
| 367 | ) |
| 368 | |
| 369 | |
| 370 | @functools.total_ordering |
| 371 | class _StringField(_Field): |
| 372 | _NAME = 'String' |
| 373 | |
| 374 | def _value_to_str(self, value): |
| 375 | if isinstance(value, self.__class__): |
| 376 | value = value._value |
| 377 | |
| 378 | if not isinstance(value, str): |
| 379 | raise TypeError("expecting a 'str' object") |
| 380 | |
| 381 | return value |
| 382 | |
| 383 | @property |
| 384 | def _value(self): |
| 385 | return native_bt.field_string_get_value(self._ptr) |
| 386 | |
| 387 | def _set_value(self, value): |
| 388 | value = self._value_to_str(value) |
| 389 | native_bt.field_string_set_value(self._ptr, value) |
| 390 | |
| 391 | value = property(fset=_set_value) |
| 392 | |
| 393 | def _spec_eq(self, other): |
| 394 | try: |
| 395 | return self._value == self._value_to_str(other) |
| 396 | except Exception: |
| 397 | return False |
| 398 | |
| 399 | def __lt__(self, other): |
| 400 | return self._value < self._value_to_str(other) |
| 401 | |
| 402 | def __bool__(self): |
| 403 | return bool(self._value) |
| 404 | |
| 405 | def _repr(self): |
| 406 | return repr(self._value) |
| 407 | |
| 408 | def __str__(self): |
| 409 | return str(self._value) |
| 410 | |
| 411 | def __getitem__(self, index): |
| 412 | return self._value[index] |
| 413 | |
| 414 | def __len__(self): |
| 415 | return native_bt.field_string_get_length(self._ptr) |
| 416 | |
| 417 | def __iadd__(self, value): |
| 418 | value = self._value_to_str(value) |
| 419 | status = native_bt.field_string_append(self._ptr, value) |
| 420 | utils._handle_func_status( |
| 421 | status, "cannot append to string field object's value" |
| 422 | ) |
| 423 | return self |
| 424 | |
| 425 | |
| 426 | class _ContainerField(_Field): |
| 427 | def __bool__(self): |
| 428 | return len(self) != 0 |
| 429 | |
| 430 | def __len__(self): |
| 431 | count = self._count() |
| 432 | assert count >= 0 |
| 433 | return count |
| 434 | |
| 435 | def __delitem__(self, index): |
| 436 | raise NotImplementedError |
| 437 | |
| 438 | |
| 439 | class _StructureField(_ContainerField, collections.abc.MutableMapping): |
| 440 | _NAME = 'Structure' |
| 441 | |
| 442 | def _count(self): |
| 443 | return len(self.cls) |
| 444 | |
| 445 | def __setitem__(self, key, value): |
| 446 | # raises if key is somehow invalid |
| 447 | field = self[key] |
| 448 | |
| 449 | # the field's property does the appropriate conversion or raises |
| 450 | # the appropriate exception |
| 451 | field.value = value |
| 452 | |
| 453 | def __iter__(self): |
| 454 | # same name iterator |
| 455 | return iter(self.cls) |
| 456 | |
| 457 | def _spec_eq(self, other): |
| 458 | if not isinstance(other, collections.abc.Mapping): |
| 459 | return False |
| 460 | |
| 461 | if len(self) != len(other): |
| 462 | # early mismatch |
| 463 | return False |
| 464 | |
| 465 | for self_key in self: |
| 466 | if self_key not in other: |
| 467 | return False |
| 468 | |
| 469 | if self[self_key] != other[self_key]: |
| 470 | return False |
| 471 | |
| 472 | return True |
| 473 | |
| 474 | def _set_value(self, values): |
| 475 | try: |
| 476 | for key, value in values.items(): |
| 477 | self[key].value = value |
| 478 | except Exception: |
| 479 | raise |
| 480 | |
| 481 | value = property(fset=_set_value) |
| 482 | |
| 483 | def _repr(self): |
| 484 | items = ['{}: {}'.format(repr(k), repr(v)) for k, v in self.items()] |
| 485 | return '{{{}}}'.format(', '.join(items)) |
| 486 | |
| 487 | def __getitem__(self, key): |
| 488 | utils._check_str(key) |
| 489 | field_ptr = native_bt.field_structure_borrow_member_field_by_name( |
| 490 | self._ptr, key |
| 491 | ) |
| 492 | |
| 493 | if field_ptr is None: |
| 494 | raise KeyError(key) |
| 495 | |
| 496 | return _create_field_from_ptr( |
| 497 | field_ptr, self._owner_ptr, self._owner_get_ref, self._owner_put_ref |
| 498 | ) |
| 499 | |
| 500 | def member_at_index(self, index): |
| 501 | utils._check_uint64(index) |
| 502 | |
| 503 | if index >= len(self): |
| 504 | raise IndexError |
| 505 | |
| 506 | field_ptr = native_bt.field_structure_borrow_member_field_by_index( |
| 507 | self._ptr, index |
| 508 | ) |
| 509 | assert field_ptr is not None |
| 510 | return _create_field_from_ptr( |
| 511 | field_ptr, self._owner_ptr, self._owner_get_ref, self._owner_put_ref |
| 512 | ) |
| 513 | |
| 514 | |
| 515 | class _OptionField(_Field): |
| 516 | _NAME = 'Option' |
| 517 | |
| 518 | @property |
| 519 | def field(self): |
| 520 | field_ptr = native_bt.field_option_borrow_field_const(self._ptr) |
| 521 | |
| 522 | if field_ptr is None: |
| 523 | return |
| 524 | |
| 525 | return _create_field_from_ptr( |
| 526 | field_ptr, self._owner_ptr, self._owner_get_ref, self._owner_put_ref |
| 527 | ) |
| 528 | |
| 529 | @property |
| 530 | def has_field(self): |
| 531 | return self.field is not None |
| 532 | |
| 533 | @has_field.setter |
| 534 | def has_field(self, value): |
| 535 | utils._check_bool(value) |
| 536 | native_bt.field_option_set_has_field(self._ptr, value) |
| 537 | |
| 538 | def _spec_eq(self, other): |
| 539 | return _get_leaf_field(self) == other |
| 540 | |
| 541 | def __bool__(self): |
| 542 | return self.has_field |
| 543 | |
| 544 | def __str__(self): |
| 545 | return str(self.field) |
| 546 | |
| 547 | def _repr(self): |
| 548 | return repr(self.field) |
| 549 | |
| 550 | def _set_value(self, value): |
| 551 | self.has_field = True |
| 552 | field = self.field |
| 553 | assert field is not None |
| 554 | field.value = value |
| 555 | |
| 556 | value = property(fset=_set_value) |
| 557 | |
| 558 | |
| 559 | class _VariantField(_ContainerField, _Field): |
| 560 | _NAME = 'Variant' |
| 561 | |
| 562 | @property |
| 563 | def selected_option_index(self): |
| 564 | return native_bt.field_variant_get_selected_option_field_index(self._ptr) |
| 565 | |
| 566 | @selected_option_index.setter |
| 567 | def selected_option_index(self, index): |
| 568 | native_bt.field_variant_select_option_field_by_index(self._ptr, index) |
| 569 | |
| 570 | @property |
| 571 | def selected_option(self): |
| 572 | # TODO: Is there a way to check if the variant field has a selected_option, |
| 573 | # so we can raise an exception instead of hitting a pre-condition check? |
| 574 | # If there is something, that check should be added to selected_option_index too. |
| 575 | field_ptr = native_bt.field_variant_borrow_selected_option_field(self._ptr) |
| 576 | |
| 577 | return _create_field_from_ptr( |
| 578 | field_ptr, self._owner_ptr, self._owner_get_ref, self._owner_put_ref |
| 579 | ) |
| 580 | |
| 581 | def _spec_eq(self, other): |
| 582 | return _get_leaf_field(self) == other |
| 583 | |
| 584 | def __bool__(self): |
| 585 | raise NotImplementedError |
| 586 | |
| 587 | def __str__(self): |
| 588 | return str(self.selected_option) |
| 589 | |
| 590 | def _repr(self): |
| 591 | return repr(self.selected_option) |
| 592 | |
| 593 | def _set_value(self, value): |
| 594 | self.selected_option.value = value |
| 595 | |
| 596 | value = property(fset=_set_value) |
| 597 | |
| 598 | |
| 599 | class _ArrayField(_ContainerField, _Field, collections.abc.MutableSequence): |
| 600 | def _get_length(self): |
| 601 | return native_bt.field_array_get_length(self._ptr) |
| 602 | |
| 603 | length = property(fget=_get_length) |
| 604 | |
| 605 | def __getitem__(self, index): |
| 606 | if not isinstance(index, numbers.Integral): |
| 607 | raise TypeError( |
| 608 | "'{}' is not an integral number object: invalid index".format( |
| 609 | index.__class__.__name__ |
| 610 | ) |
| 611 | ) |
| 612 | |
| 613 | index = int(index) |
| 614 | |
| 615 | if index < 0 or index >= len(self): |
| 616 | raise IndexError('{} field object index is out of range'.format(self._NAME)) |
| 617 | |
| 618 | field_ptr = native_bt.field_array_borrow_element_field_by_index( |
| 619 | self._ptr, index |
| 620 | ) |
| 621 | assert field_ptr |
| 622 | return _create_field_from_ptr( |
| 623 | field_ptr, self._owner_ptr, self._owner_get_ref, self._owner_put_ref |
| 624 | ) |
| 625 | |
| 626 | def __setitem__(self, index, value): |
| 627 | # raises if index is somehow invalid |
| 628 | field = self[index] |
| 629 | |
| 630 | if not isinstance(field, (_NumericField, _StringField)): |
| 631 | raise TypeError('can only set the value of a number or string field') |
| 632 | |
| 633 | # the field's property does the appropriate conversion or raises |
| 634 | # the appropriate exception |
| 635 | field.value = value |
| 636 | |
| 637 | def insert(self, index, value): |
| 638 | raise NotImplementedError |
| 639 | |
| 640 | def _spec_eq(self, other): |
| 641 | if not isinstance(other, collections.abc.Sequence): |
| 642 | return False |
| 643 | |
| 644 | if len(self) != len(other): |
| 645 | # early mismatch |
| 646 | return False |
| 647 | |
| 648 | for self_elem, other_elem in zip(self, other): |
| 649 | if self_elem != other_elem: |
| 650 | return False |
| 651 | |
| 652 | return True |
| 653 | |
| 654 | def _repr(self): |
| 655 | return '[{}]'.format(', '.join([repr(v) for v in self])) |
| 656 | |
| 657 | |
| 658 | class _StaticArrayField(_ArrayField, _Field): |
| 659 | _NAME = 'Static array' |
| 660 | |
| 661 | def _count(self): |
| 662 | return native_bt.field_array_get_length(self._ptr) |
| 663 | |
| 664 | def _set_value(self, values): |
| 665 | if len(self) != len(values): |
| 666 | raise ValueError('expected length of value and array field to match') |
| 667 | |
| 668 | for index, value in enumerate(values): |
| 669 | if value is not None: |
| 670 | self[index].value = value |
| 671 | |
| 672 | value = property(fset=_set_value) |
| 673 | |
| 674 | |
| 675 | class _DynamicArrayField(_ArrayField, _Field): |
| 676 | _NAME = 'Dynamic array' |
| 677 | |
| 678 | def _count(self): |
| 679 | return self.length |
| 680 | |
| 681 | def _set_length(self, length): |
| 682 | utils._check_uint64(length) |
| 683 | status = native_bt.field_array_dynamic_set_length(self._ptr, length) |
| 684 | utils._handle_func_status(status, "cannot set dynamic array length") |
| 685 | |
| 686 | length = property(fget=_ArrayField._get_length, fset=_set_length) |
| 687 | |
| 688 | def _set_value(self, values): |
| 689 | if len(values) != self.length: |
| 690 | self.length = len(values) |
| 691 | |
| 692 | for index, value in enumerate(values): |
| 693 | if value is not None: |
| 694 | self[index].value = value |
| 695 | |
| 696 | value = property(fset=_set_value) |
| 697 | |
| 698 | |
| 699 | _TYPE_ID_TO_OBJ = { |
| 700 | native_bt.FIELD_CLASS_TYPE_BOOL: _BoolField, |
| 701 | native_bt.FIELD_CLASS_TYPE_BIT_ARRAY: _BitArrayField, |
| 702 | native_bt.FIELD_CLASS_TYPE_UNSIGNED_INTEGER: _UnsignedIntegerField, |
| 703 | native_bt.FIELD_CLASS_TYPE_SIGNED_INTEGER: _SignedIntegerField, |
| 704 | native_bt.FIELD_CLASS_TYPE_REAL: _RealField, |
| 705 | native_bt.FIELD_CLASS_TYPE_UNSIGNED_ENUMERATION: _UnsignedEnumerationField, |
| 706 | native_bt.FIELD_CLASS_TYPE_SIGNED_ENUMERATION: _SignedEnumerationField, |
| 707 | native_bt.FIELD_CLASS_TYPE_STRING: _StringField, |
| 708 | native_bt.FIELD_CLASS_TYPE_STRUCTURE: _StructureField, |
| 709 | native_bt.FIELD_CLASS_TYPE_STATIC_ARRAY: _StaticArrayField, |
| 710 | native_bt.FIELD_CLASS_TYPE_DYNAMIC_ARRAY: _DynamicArrayField, |
| 711 | native_bt.FIELD_CLASS_TYPE_OPTION: _OptionField, |
| 712 | native_bt.FIELD_CLASS_TYPE_VARIANT_WITHOUT_SELECTOR: _VariantField, |
| 713 | native_bt.FIELD_CLASS_TYPE_VARIANT_WITH_UNSIGNED_SELECTOR: _VariantField, |
| 714 | native_bt.FIELD_CLASS_TYPE_VARIANT_WITH_SIGNED_SELECTOR: _VariantField, |
| 715 | } |