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81447b5b PP |
1 | # The MIT License (MIT) |
2 | # | |
811644b8 | 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 | |
24 | import collections.abc | |
25 | import functools | |
26 | import numbers | |
27 | import math | |
28 | import abc | |
29 | import bt2 | |
30 | ||
31 | ||
32 | def _handle_status(status, obj_name): | |
33 | if status >= 0: | |
34 | return | |
81447b5b | 35 | else: |
81447b5b PP |
36 | raise RuntimeError('unexpected error') |
37 | ||
38 | ||
39 | def _create_from_ptr(ptr): | |
40 | if ptr is None or ptr == native_bt.value_null: | |
41 | return | |
42 | ||
43 | typeid = native_bt.value_get_type(ptr) | |
44 | return _TYPE_TO_OBJ[typeid]._create_from_ptr(ptr) | |
45 | ||
46 | ||
10a19b49 SM |
47 | def _create_from_ptr_and_get_ref(ptr): |
48 | if ptr is None or ptr == native_bt.value_null: | |
49 | return | |
50 | ||
51 | typeid = native_bt.value_get_type(ptr) | |
52 | return _TYPE_TO_OBJ[typeid]._create_from_ptr_and_get_ref(ptr) | |
53 | ||
54 | ||
81447b5b PP |
55 | def create_value(value): |
56 | if value is None: | |
57 | # null value object | |
58 | return | |
59 | ||
60 | if isinstance(value, _Value): | |
61 | return value | |
62 | ||
63 | if isinstance(value, bool): | |
64 | return BoolValue(value) | |
65 | ||
66 | if isinstance(value, int): | |
fdd3a2da | 67 | return SignedIntegerValue(value) |
81447b5b PP |
68 | |
69 | if isinstance(value, float): | |
10a19b49 | 70 | return RealValue(value) |
81447b5b PP |
71 | |
72 | if isinstance(value, str): | |
73 | return StringValue(value) | |
74 | ||
75 | try: | |
76 | return MapValue(value) | |
77 | except: | |
78 | pass | |
79 | ||
80 | try: | |
81 | return ArrayValue(value) | |
82 | except: | |
83 | pass | |
84 | ||
85 | raise TypeError("cannot create value object from '{}' object".format(value.__class__.__name__)) | |
86 | ||
87 | ||
78288f58 | 88 | class _Value(object._SharedObject, metaclass=abc.ABCMeta): |
2f16a6a2 PP |
89 | _get_ref = staticmethod(native_bt.value_get_ref) |
90 | _put_ref = staticmethod(native_bt.value_put_ref) | |
10a19b49 | 91 | |
81447b5b PP |
92 | def __eq__(self, other): |
93 | if other is None: | |
94 | # self is never the null value object | |
95 | return False | |
96 | ||
97 | # try type-specific comparison first | |
98 | spec_eq = self._spec_eq(other) | |
99 | ||
100 | if spec_eq is not None: | |
101 | return spec_eq | |
102 | ||
103 | if not isinstance(other, _Value): | |
104 | # not comparing apples to apples | |
105 | return False | |
106 | ||
107 | # fall back to native comparison function | |
108 | return native_bt.value_compare(self._ptr, other._ptr) | |
109 | ||
110 | def __ne__(self, other): | |
111 | return not (self == other) | |
112 | ||
113 | @abc.abstractmethod | |
114 | def _spec_eq(self, other): | |
115 | pass | |
116 | ||
117 | def _handle_status(self, status): | |
118 | _handle_status(status, self._NAME) | |
119 | ||
120 | def _check_create_status(self, ptr): | |
121 | if ptr is None: | |
10a19b49 SM |
122 | raise bt2.CreationError( |
123 | 'cannot create {} value object'.format(self._NAME.lower())) | |
81447b5b PP |
124 | |
125 | ||
126 | @functools.total_ordering | |
10a19b49 | 127 | class _NumericValue(_Value): |
81447b5b PP |
128 | @staticmethod |
129 | def _extract_value(other): | |
130 | if isinstance(other, _NumericValue): | |
9b6cd4a7 | 131 | return other._value |
81447b5b PP |
132 | |
133 | if other is True or other is False: | |
134 | return other | |
135 | ||
136 | if isinstance(other, numbers.Integral): | |
137 | return int(other) | |
138 | ||
139 | if isinstance(other, numbers.Real): | |
140 | return float(other) | |
141 | ||
142 | if isinstance(other, numbers.Complex): | |
143 | return complex(other) | |
144 | ||
145 | raise TypeError("'{}' object is not a number object".format(other.__class__.__name__)) | |
146 | ||
147 | def __int__(self): | |
9b6cd4a7 | 148 | return int(self._value) |
81447b5b PP |
149 | |
150 | def __float__(self): | |
9b6cd4a7 | 151 | return float(self._value) |
81447b5b | 152 | |
83656269 JG |
153 | def __repr__(self): |
154 | return repr(self._value) | |
81447b5b PP |
155 | |
156 | def __lt__(self, other): | |
157 | if not isinstance(other, numbers.Number): | |
158 | raise TypeError('unorderable types: {}() < {}()'.format(self.__class__.__name__, | |
159 | other.__class__.__name__)) | |
160 | ||
9b6cd4a7 | 161 | return self._value < float(other) |
81447b5b | 162 | |
81447b5b | 163 | def _spec_eq(self, other): |
811644b8 | 164 | pass |
81447b5b PP |
165 | |
166 | def __eq__(self, other): | |
167 | if not isinstance(other, numbers.Number): | |
168 | return False | |
169 | ||
9b6cd4a7 | 170 | return self._value == complex(other) |
81447b5b PP |
171 | |
172 | def __rmod__(self, other): | |
9b6cd4a7 | 173 | return self._extract_value(other) % self._value |
81447b5b PP |
174 | |
175 | def __mod__(self, other): | |
9b6cd4a7 | 176 | return self._value % self._extract_value(other) |
81447b5b PP |
177 | |
178 | def __rfloordiv__(self, other): | |
9b6cd4a7 | 179 | return self._extract_value(other) // self._value |
81447b5b PP |
180 | |
181 | def __floordiv__(self, other): | |
9b6cd4a7 | 182 | return self._value // self._extract_value(other) |
81447b5b PP |
183 | |
184 | def __round__(self, ndigits=None): | |
185 | if ndigits is None: | |
9b6cd4a7 | 186 | return round(self._value) |
81447b5b | 187 | else: |
9b6cd4a7 | 188 | return round(self._value, ndigits) |
81447b5b PP |
189 | |
190 | def __ceil__(self): | |
9b6cd4a7 | 191 | return math.ceil(self._value) |
81447b5b PP |
192 | |
193 | def __floor__(self): | |
9b6cd4a7 | 194 | return math.floor(self._value) |
81447b5b PP |
195 | |
196 | def __trunc__(self): | |
9b6cd4a7 | 197 | return int(self._value) |
81447b5b PP |
198 | |
199 | def __abs__(self): | |
9b6cd4a7 | 200 | return abs(self._value) |
81447b5b PP |
201 | |
202 | def __add__(self, other): | |
9b6cd4a7 | 203 | return self._value + self._extract_value(other) |
81447b5b PP |
204 | |
205 | def __radd__(self, other): | |
206 | return self.__add__(other) | |
207 | ||
208 | def __neg__(self): | |
9b6cd4a7 | 209 | return -self._value |
81447b5b PP |
210 | |
211 | def __pos__(self): | |
9b6cd4a7 | 212 | return +self._value |
81447b5b PP |
213 | |
214 | def __mul__(self, other): | |
9b6cd4a7 | 215 | return self._value * self._extract_value(other) |
81447b5b PP |
216 | |
217 | def __rmul__(self, other): | |
218 | return self.__mul__(other) | |
219 | ||
220 | def __truediv__(self, other): | |
9b6cd4a7 | 221 | return self._value / self._extract_value(other) |
81447b5b PP |
222 | |
223 | def __rtruediv__(self, other): | |
9b6cd4a7 | 224 | return self._extract_value(other) / self._value |
81447b5b PP |
225 | |
226 | def __pow__(self, exponent): | |
9b6cd4a7 | 227 | return self._value ** self._extract_value(exponent) |
81447b5b PP |
228 | |
229 | def __rpow__(self, base): | |
9b6cd4a7 | 230 | return self._extract_value(base) ** self._value |
81447b5b PP |
231 | |
232 | def __iadd__(self, other): | |
233 | self.value = self + other | |
234 | return self | |
235 | ||
236 | def __isub__(self, other): | |
237 | self.value = self - other | |
238 | return self | |
239 | ||
240 | def __imul__(self, other): | |
241 | self.value = self * other | |
242 | return self | |
243 | ||
244 | def __itruediv__(self, other): | |
245 | self.value = self / other | |
246 | return self | |
247 | ||
248 | def __ifloordiv__(self, other): | |
249 | self.value = self // other | |
250 | return self | |
251 | ||
252 | def __imod__(self, other): | |
253 | self.value = self % other | |
254 | return self | |
255 | ||
256 | def __ipow__(self, other): | |
257 | self.value = self ** other | |
258 | return self | |
259 | ||
260 | ||
261 | class _IntegralValue(_NumericValue, numbers.Integral): | |
262 | def __lshift__(self, other): | |
9b6cd4a7 | 263 | return self._value << self._extract_value(other) |
81447b5b PP |
264 | |
265 | def __rlshift__(self, other): | |
9b6cd4a7 | 266 | return self._extract_value(other) << self._value |
81447b5b PP |
267 | |
268 | def __rshift__(self, other): | |
9b6cd4a7 | 269 | return self._value >> self._extract_value(other) |
81447b5b PP |
270 | |
271 | def __rrshift__(self, other): | |
9b6cd4a7 | 272 | return self._extract_value(other) >> self._value |
81447b5b PP |
273 | |
274 | def __and__(self, other): | |
9b6cd4a7 | 275 | return self._value & self._extract_value(other) |
81447b5b PP |
276 | |
277 | def __rand__(self, other): | |
9b6cd4a7 | 278 | return self._extract_value(other) & self._value |
81447b5b PP |
279 | |
280 | def __xor__(self, other): | |
9b6cd4a7 | 281 | return self._value ^ self._extract_value(other) |
81447b5b PP |
282 | |
283 | def __rxor__(self, other): | |
9b6cd4a7 | 284 | return self._extract_value(other) ^ self._value |
81447b5b PP |
285 | |
286 | def __or__(self, other): | |
9b6cd4a7 | 287 | return self._value | self._extract_value(other) |
81447b5b PP |
288 | |
289 | def __ror__(self, other): | |
9b6cd4a7 | 290 | return self._extract_value(other) | self._value |
81447b5b PP |
291 | |
292 | def __invert__(self): | |
9b6cd4a7 | 293 | return ~self._value |
81447b5b PP |
294 | |
295 | def __ilshift__(self, other): | |
296 | self.value = self << other | |
297 | return self | |
298 | ||
299 | def __irshift__(self, other): | |
300 | self.value = self >> other | |
301 | return self | |
302 | ||
303 | def __iand__(self, other): | |
304 | self.value = self & other | |
305 | return self | |
306 | ||
307 | def __ixor__(self, other): | |
308 | self.value = self ^ other | |
309 | return self | |
310 | ||
311 | def __ior__(self, other): | |
312 | self.value = self | other | |
313 | return self | |
314 | ||
7bb4180f FD |
315 | def __lt__(self, other): |
316 | if not isinstance(other, numbers.Integral): | |
317 | return super().__lt__(other) | |
318 | ||
319 | return self._value < int(other) | |
320 | ||
321 | def __eq__(self, other): | |
322 | if not isinstance(other, numbers.Integral): | |
323 | return super().__eq__(other) | |
324 | ||
325 | return self._value == int(other) | |
326 | ||
81447b5b PP |
327 | |
328 | class _RealValue(_NumericValue, numbers.Real): | |
329 | pass | |
330 | ||
331 | ||
10a19b49 | 332 | class BoolValue(_Value): |
81447b5b PP |
333 | _NAME = 'Boolean' |
334 | ||
335 | def __init__(self, value=None): | |
336 | if value is None: | |
337 | ptr = native_bt.value_bool_create() | |
338 | else: | |
339 | ptr = native_bt.value_bool_create_init(self._value_to_bool(value)) | |
340 | ||
341 | self._check_create_status(ptr) | |
342 | super().__init__(ptr) | |
343 | ||
344 | def _spec_eq(self, other): | |
345 | if isinstance(other, numbers.Number): | |
9b6cd4a7 | 346 | return self._value == bool(other) |
81447b5b PP |
347 | |
348 | def __bool__(self): | |
9b6cd4a7 | 349 | return self._value |
81447b5b | 350 | |
83656269 JG |
351 | def __repr__(self): |
352 | return repr(self._value) | |
81447b5b PP |
353 | |
354 | def _value_to_bool(self, value): | |
355 | if isinstance(value, BoolValue): | |
9b6cd4a7 | 356 | value = value._value |
81447b5b PP |
357 | |
358 | if not isinstance(value, bool): | |
359 | raise TypeError("'{}' object is not a 'bool' or 'BoolValue' object".format(value.__class__)) | |
360 | ||
811644b8 | 361 | return int(value) |
81447b5b PP |
362 | |
363 | @property | |
9b6cd4a7 | 364 | def _value(self): |
10a19b49 SM |
365 | value = native_bt.value_bool_get(self._ptr) |
366 | return value != 0 | |
81447b5b | 367 | |
9b6cd4a7 | 368 | def _set_value(self, value): |
10a19b49 | 369 | native_bt.value_bool_set(self._ptr, self._value_to_bool(value)) |
81447b5b | 370 | |
9b6cd4a7 PP |
371 | value = property(fset=_set_value) |
372 | ||
81447b5b | 373 | |
fdd3a2da | 374 | class _IntegerValue(_IntegralValue): |
81447b5b PP |
375 | def __init__(self, value=None): |
376 | if value is None: | |
fdd3a2da | 377 | ptr = self._create_default_value() |
81447b5b | 378 | else: |
fdd3a2da | 379 | ptr = self._create_value(self._value_to_int(value)) |
81447b5b PP |
380 | |
381 | self._check_create_status(ptr) | |
382 | super().__init__(ptr) | |
383 | ||
384 | def _value_to_int(self, value): | |
385 | if not isinstance(value, numbers.Real): | |
386 | raise TypeError('expecting a number object') | |
387 | ||
388 | value = int(value) | |
fdd3a2da | 389 | self._check_int_range(value) |
81447b5b PP |
390 | return value |
391 | ||
392 | @property | |
9b6cd4a7 | 393 | def _value(self): |
fdd3a2da | 394 | return self._get_value(self._ptr) |
81447b5b | 395 | |
fdd3a2da PP |
396 | def _prop_set_value(self, value): |
397 | self._set_value(self._ptr, self._value_to_int(value)) | |
81447b5b | 398 | |
fdd3a2da PP |
399 | value = property(fset=_prop_set_value) |
400 | ||
401 | ||
402 | class UnsignedIntegerValue(_IntegerValue): | |
403 | _check_int_range = staticmethod(utils._check_uint64) | |
2f16a6a2 PP |
404 | _create_default_value = staticmethod(native_bt.value_unsigned_integer_create) |
405 | _create_value = staticmethod(native_bt.value_unsigned_integer_create_init) | |
406 | _set_value = staticmethod(native_bt.value_unsigned_integer_set) | |
407 | _get_value = staticmethod(native_bt.value_unsigned_integer_get) | |
fdd3a2da PP |
408 | |
409 | ||
410 | class SignedIntegerValue(_IntegerValue): | |
411 | _check_int_range = staticmethod(utils._check_int64) | |
2f16a6a2 PP |
412 | _create_default_value = staticmethod(native_bt.value_signed_integer_create) |
413 | _create_value = staticmethod(native_bt.value_signed_integer_create_init) | |
414 | _set_value = staticmethod(native_bt.value_signed_integer_set) | |
415 | _get_value = staticmethod(native_bt.value_signed_integer_get) | |
9b6cd4a7 | 416 | |
81447b5b | 417 | |
10a19b49 SM |
418 | class RealValue(_RealValue): |
419 | _NAME = 'Real number' | |
81447b5b PP |
420 | |
421 | def __init__(self, value=None): | |
422 | if value is None: | |
10a19b49 | 423 | ptr = native_bt.value_real_create() |
81447b5b PP |
424 | else: |
425 | value = self._value_to_float(value) | |
10a19b49 | 426 | ptr = native_bt.value_real_create_init(value) |
81447b5b PP |
427 | |
428 | self._check_create_status(ptr) | |
429 | super().__init__(ptr) | |
430 | ||
431 | def _value_to_float(self, value): | |
432 | if not isinstance(value, numbers.Real): | |
433 | raise TypeError("expecting a real number object") | |
434 | ||
435 | return float(value) | |
436 | ||
437 | @property | |
9b6cd4a7 | 438 | def _value(self): |
10a19b49 | 439 | return native_bt.value_real_get(self._ptr) |
81447b5b | 440 | |
9b6cd4a7 | 441 | def _set_value(self, value): |
10a19b49 | 442 | native_bt.value_real_set(self._ptr, self._value_to_float(value)) |
81447b5b | 443 | |
9b6cd4a7 PP |
444 | value = property(fset=_set_value) |
445 | ||
81447b5b PP |
446 | |
447 | @functools.total_ordering | |
10a19b49 | 448 | class StringValue(collections.abc.Sequence, _Value): |
81447b5b PP |
449 | _NAME = 'String' |
450 | ||
451 | def __init__(self, value=None): | |
452 | if value is None: | |
453 | ptr = native_bt.value_string_create() | |
454 | else: | |
455 | ptr = native_bt.value_string_create_init(self._value_to_str(value)) | |
456 | ||
457 | self._check_create_status(ptr) | |
458 | super().__init__(ptr) | |
459 | ||
460 | def _value_to_str(self, value): | |
461 | if isinstance(value, self.__class__): | |
9b6cd4a7 | 462 | value = value._value |
81447b5b PP |
463 | |
464 | utils._check_str(value) | |
465 | return value | |
466 | ||
467 | @property | |
9b6cd4a7 | 468 | def _value(self): |
10a19b49 | 469 | return native_bt.value_string_get(self._ptr) |
81447b5b | 470 | |
9b6cd4a7 | 471 | def _set_value(self, value): |
81447b5b PP |
472 | status = native_bt.value_string_set(self._ptr, self._value_to_str(value)) |
473 | self._handle_status(status) | |
474 | ||
9b6cd4a7 PP |
475 | value = property(fset=_set_value) |
476 | ||
81447b5b PP |
477 | def _spec_eq(self, other): |
478 | try: | |
9b6cd4a7 | 479 | return self._value == self._value_to_str(other) |
81447b5b PP |
480 | except: |
481 | return | |
482 | ||
81447b5b | 483 | def __lt__(self, other): |
9b6cd4a7 | 484 | return self._value < self._value_to_str(other) |
81447b5b PP |
485 | |
486 | def __bool__(self): | |
9b6cd4a7 | 487 | return bool(self._value) |
81447b5b | 488 | |
83656269 | 489 | def __repr__(self): |
10a19b49 | 490 | return repr(self._value) |
83656269 | 491 | |
81447b5b | 492 | def __str__(self): |
9b6cd4a7 | 493 | return self._value |
81447b5b PP |
494 | |
495 | def __getitem__(self, index): | |
9b6cd4a7 | 496 | return self._value[index] |
81447b5b PP |
497 | |
498 | def __len__(self): | |
9b6cd4a7 | 499 | return len(self._value) |
81447b5b PP |
500 | |
501 | def __iadd__(self, value): | |
9b6cd4a7 | 502 | curvalue = self._value |
81447b5b PP |
503 | curvalue += self._value_to_str(value) |
504 | self.value = curvalue | |
505 | return self | |
506 | ||
507 | ||
508 | class _Container: | |
509 | def __bool__(self): | |
510 | return len(self) != 0 | |
511 | ||
81447b5b PP |
512 | def __delitem__(self, index): |
513 | raise NotImplementedError | |
514 | ||
515 | ||
516 | class ArrayValue(_Container, collections.abc.MutableSequence, _Value): | |
517 | _NAME = 'Array' | |
518 | ||
519 | def __init__(self, value=None): | |
520 | ptr = native_bt.value_array_create() | |
521 | self._check_create_status(ptr) | |
522 | super().__init__(ptr) | |
523 | ||
524 | # Python will raise a TypeError if there's anything wrong with | |
525 | # the iterable protocol. | |
526 | if value is not None: | |
527 | for elem in value: | |
528 | self.append(elem) | |
529 | ||
530 | def _spec_eq(self, other): | |
531 | try: | |
532 | if len(self) != len(other): | |
533 | # early mismatch | |
534 | return False | |
535 | ||
536 | for self_elem, other_elem in zip(self, other): | |
537 | if self_elem != other_elem: | |
538 | return False | |
539 | ||
540 | return True | |
541 | except: | |
542 | return | |
543 | ||
544 | def __len__(self): | |
10a19b49 | 545 | size = native_bt.value_array_get_size(self._ptr) |
811644b8 | 546 | assert(size >= 0) |
81447b5b PP |
547 | return size |
548 | ||
549 | def _check_index(self, index): | |
550 | # TODO: support slices also | |
551 | if not isinstance(index, numbers.Integral): | |
552 | raise TypeError("'{}' object is not an integral number object: invalid index".format(index.__class__.__name__)) | |
553 | ||
554 | index = int(index) | |
555 | ||
556 | if index < 0 or index >= len(self): | |
557 | raise IndexError('array value object index is out of range') | |
558 | ||
559 | def __getitem__(self, index): | |
560 | self._check_index(index) | |
10a19b49 | 561 | ptr = native_bt.value_array_borrow_element_by_index(self._ptr, index) |
811644b8 | 562 | assert(ptr) |
10a19b49 | 563 | return _create_from_ptr_and_get_ref(ptr) |
81447b5b PP |
564 | |
565 | def __setitem__(self, index, value): | |
566 | self._check_index(index) | |
567 | value = create_value(value) | |
568 | ||
569 | if value is None: | |
570 | ptr = native_bt.value_null | |
571 | else: | |
572 | ptr = value._ptr | |
573 | ||
10a19b49 SM |
574 | status = native_bt.value_array_set_element_by_index( |
575 | self._ptr, index, ptr) | |
81447b5b PP |
576 | self._handle_status(status) |
577 | ||
578 | def append(self, value): | |
579 | value = create_value(value) | |
580 | ||
581 | if value is None: | |
582 | ptr = native_bt.value_null | |
583 | else: | |
584 | ptr = value._ptr | |
585 | ||
10a19b49 | 586 | status = native_bt.value_array_append_element(self._ptr, ptr) |
81447b5b PP |
587 | self._handle_status(status) |
588 | ||
589 | def __iadd__(self, iterable): | |
590 | # Python will raise a TypeError if there's anything wrong with | |
591 | # the iterable protocol. | |
592 | for elem in iterable: | |
593 | self.append(elem) | |
594 | ||
595 | return self | |
596 | ||
83656269 JG |
597 | def __repr__(self): |
598 | return '[{}]'.format(', '.join([repr(v) for v in self])) | |
81447b5b PP |
599 | |
600 | def insert(self, value): | |
601 | raise NotImplementedError | |
602 | ||
603 | ||
604 | class _MapValueKeyIterator(collections.abc.Iterator): | |
605 | def __init__(self, map_obj): | |
606 | self._map_obj = map_obj | |
607 | self._at = 0 | |
10a19b49 | 608 | keys_ptr = native_bt.value_map_get_keys(map_obj._ptr) |
81447b5b PP |
609 | |
610 | if keys_ptr is None: | |
611 | raise RuntimeError('unexpected error: cannot get map value object keys') | |
612 | ||
613 | self._keys = _create_from_ptr(keys_ptr) | |
614 | ||
615 | def __next__(self): | |
616 | if self._at == len(self._map_obj): | |
617 | raise StopIteration | |
618 | ||
619 | key = self._keys[self._at] | |
620 | self._at += 1 | |
621 | return str(key) | |
622 | ||
623 | ||
624 | class MapValue(_Container, collections.abc.MutableMapping, _Value): | |
625 | _NAME = 'Map' | |
626 | ||
627 | def __init__(self, value=None): | |
628 | ptr = native_bt.value_map_create() | |
629 | self._check_create_status(ptr) | |
630 | super().__init__(ptr) | |
631 | ||
632 | # Python will raise a TypeError if there's anything wrong with | |
633 | # the iterable/mapping protocol. | |
634 | if value is not None: | |
635 | for key, elem in value.items(): | |
636 | self[key] = elem | |
637 | ||
638 | def __eq__(self, other): | |
639 | return _Value.__eq__(self, other) | |
640 | ||
641 | def __ne__(self, other): | |
642 | return _Value.__ne__(self, other) | |
643 | ||
644 | def _spec_eq(self, other): | |
645 | try: | |
646 | if len(self) != len(other): | |
647 | # early mismatch | |
648 | return False | |
649 | ||
650 | for self_key in self: | |
651 | if self_key not in other: | |
652 | return False | |
653 | ||
654 | self_value = self[self_key] | |
655 | other_value = other[self_key] | |
656 | ||
657 | if self_value != other_value: | |
658 | return False | |
659 | ||
660 | return True | |
661 | except: | |
662 | return | |
663 | ||
664 | def __len__(self): | |
10a19b49 | 665 | size = native_bt.value_map_get_size(self._ptr) |
811644b8 | 666 | assert(size >= 0) |
81447b5b PP |
667 | return size |
668 | ||
669 | def __contains__(self, key): | |
670 | self._check_key_type(key) | |
10a19b49 | 671 | return native_bt.value_map_has_entry(self._ptr, key) |
81447b5b PP |
672 | |
673 | def _check_key_type(self, key): | |
674 | utils._check_str(key) | |
675 | ||
676 | def _check_key(self, key): | |
677 | if key not in self: | |
678 | raise KeyError(key) | |
679 | ||
680 | def __getitem__(self, key): | |
681 | self._check_key(key) | |
10a19b49 | 682 | ptr = native_bt.value_map_borrow_entry_value(self._ptr, key) |
811644b8 | 683 | assert(ptr) |
10a19b49 | 684 | return _create_from_ptr_and_get_ref(ptr) |
81447b5b PP |
685 | |
686 | def __iter__(self): | |
687 | return _MapValueKeyIterator(self) | |
688 | ||
689 | def __setitem__(self, key, value): | |
690 | self._check_key_type(key) | |
691 | value = create_value(value) | |
692 | ||
693 | if value is None: | |
694 | ptr = native_bt.value_null | |
695 | else: | |
696 | ptr = value._ptr | |
697 | ||
10a19b49 | 698 | status = native_bt.value_map_insert_entry(self._ptr, key, ptr) |
81447b5b PP |
699 | self._handle_status(status) |
700 | ||
83656269 JG |
701 | def __repr__(self): |
702 | items = ['{}: {}'.format(repr(k), repr(v)) for k, v in self.items()] | |
703 | return '{{{}}}'.format(', '.join(items)) | |
81447b5b PP |
704 | |
705 | ||
706 | _TYPE_TO_OBJ = { | |
707 | native_bt.VALUE_TYPE_BOOL: BoolValue, | |
fdd3a2da PP |
708 | native_bt.VALUE_TYPE_UNSIGNED_INTEGER: UnsignedIntegerValue, |
709 | native_bt.VALUE_TYPE_SIGNED_INTEGER: SignedIntegerValue, | |
10a19b49 | 710 | native_bt.VALUE_TYPE_REAL: RealValue, |
81447b5b PP |
711 | native_bt.VALUE_TYPE_STRING: StringValue, |
712 | native_bt.VALUE_TYPE_ARRAY: ArrayValue, | |
713 | native_bt.VALUE_TYPE_MAP: MapValue, | |
714 | } |