| 552 | |
| 553 | |
| 554 | class SequenceEncoder(AbstractItemEncoder): |
| 555 | omitEmptyOptionals = False |
| 556 | |
| 557 | # TODO: handling three flavors of input is too much -- split over codecs |
| 558 | |
| 559 | def encodeValue(self, value, asn1Spec, encodeFun, **options): |
| 560 | |
| 561 | substrate = b'' |
| 562 | |
| 563 | omitEmptyOptionals = options.get( |
| 564 | 'omitEmptyOptionals', self.omitEmptyOptionals) |
| 565 | |
| 566 | if LOG: |
| 567 | LOG('%sencoding empty OPTIONAL components' % ( |
| 568 | omitEmptyOptionals and 'not ' or '')) |
| 569 | |
| 570 | if asn1Spec is None: |
| 571 | # instance of ASN.1 schema |
| 572 | inconsistency = value.isInconsistent |
| 573 | if inconsistency: |
| 574 | raise error.PyAsn1Error( |
| 575 | f"ASN.1 object {value.__class__.__name__} is inconsistent") |
| 576 | |
| 577 | namedTypes = value.componentType |
| 578 | |
| 579 | for idx, component in enumerate(value.values()): |
| 580 | if namedTypes: |
| 581 | namedType = namedTypes[idx] |
| 582 | |
| 583 | if namedType.isOptional and not component.isValue: |
| 584 | if LOG: |
| 585 | LOG('not encoding OPTIONAL component %r' % (namedType,)) |
| 586 | continue |
| 587 | |
| 588 | if namedType.isDefaulted and component == namedType.asn1Object: |
| 589 | if LOG: |
| 590 | LOG('not encoding DEFAULT component %r' % (namedType,)) |
| 591 | continue |
| 592 | |
| 593 | if omitEmptyOptionals: |
| 594 | options.update(ifNotEmpty=namedType.isOptional) |
| 595 | |
| 596 | # wrap open type blob if needed |
| 597 | if namedTypes and namedType.openType: |
| 598 | |
| 599 | wrapType = namedType.asn1Object |
| 600 | |
| 601 | if wrapType.typeId in ( |
| 602 | univ.SetOf.typeId, univ.SequenceOf.typeId): |
| 603 | |
| 604 | substrate += encodeFun( |
| 605 | component, asn1Spec, |
| 606 | **dict(options, wrapType=wrapType.componentType)) |
| 607 | |
| 608 | else: |
| 609 | chunk = encodeFun(component, asn1Spec, **options) |
| 610 | |
| 611 | if wrapType.isSameTypeWith(component): |