|
594 | 594 | </t> |
595 | 595 | </section> |
596 | 596 |
|
| 597 | + <section title="Evaluation Results"> |
| 598 | + <t> |
| 599 | + Evaluating an instance against a schema MUST produce one of four general outcomes: |
| 600 | + |
| 601 | + <list> |
| 602 | + <t> |
| 603 | + success: the evaluation completed without failing any validation assertions |
| 604 | + </t> |
| 605 | + <t> |
| 606 | + failure: the evaluation completed with assertion failures |
| 607 | + </t> |
| 608 | + <t> |
| 609 | + runtime error: the schema was understood but the evaluation could not |
| 610 | + complete |
| 611 | + </t> |
| 612 | + <t> |
| 613 | + refusal to process: the schema was not understood and evaluation never began |
| 614 | + </t> |
| 615 | + </list> |
| 616 | + </t> |
| 617 | + <t> |
| 618 | + Runtime errors include but are not limited to: failure of reference resolution, |
| 619 | + detection of an infinite reference loop, or excessive consumption of memory. |
| 620 | + </t> |
| 621 | + <t> |
| 622 | + Implementations MAY detect certain refusal-to-process conditions when a schema is |
| 623 | + loaded, prior to attempting any evaluation. For example, a schema that requires |
| 624 | + a vocabulary that the implementation does not support cannot be processed |
| 625 | + regardless of the instance. |
| 626 | + </t> |
| 627 | + <t> |
| 628 | + Some conditions can manifest as either runtime or refusal-to-process outcomes. |
| 629 | + For example, a reference to a non-existent location within a schema resource can |
| 630 | + be detected at schema load time, but a reference to a non-existent external schema |
| 631 | + might not be detected until runtime as that reference target schema might |
| 632 | + be provided between the loading of the reference source schema and the first |
| 633 | + attempted evaluation with an instance. |
| 634 | + </t> |
| 635 | + </section> |
| 636 | + |
597 | 637 | <section title="Extending JSON Schema" anchor="extending"> |
598 | 638 | <t> |
599 | 639 | Additional schema keywords and schema vocabularies MAY be defined |
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