JSON Schema 8

[gregsdennis]

(or whatever the draft ends up being called)

This will likely be a breaking change since there are some significant requirements changes happening for this draft.

[gregsdennis]

This is slowly progressing. I have created a shared architecture, but I need to figure out some things about how the keywords can interact.

[gregsdennis]

The above is an overhaul of JsonSchema. The next steps include:

• standardized error output
• draft-07's annotation gathering
• new keywords for draft-08

These will likely also be separate PRs.

I may want to push out the reimplementation before draft-08 is ready. If that's the case, draft-08 support will be a v10.x release.

[gregsdennis]

See branch feature/175-draft-08.

[gregsdennis]

Here's the list of new keywords to implement:

• $recursiveRef & $recursiveAnchor
  • $recursiveRef part 1 of 3: Dynamic vs Lexical scope json-schema-org/json-schema-spec#653
  • $recursiveRef part 2 of 3: $recursiveRef and $recursiveAnchor json-schema-org/json-schema-spec#654
  • $recursiveRef part 3 of 3: Update meta-schemas json-schema-org/json-schema-spec#655
  • outstanding question in Slack answered
• $defs
  • Move "definitions" to core as "$defs", start appendix on moved/renamed keywords json-schema-org/json-schema-spec#570
• unevaluatedProperties & unevalutatedItems
  • Add "unevaluatedProperties" and "unevaluatedItems" json-schema-org/json-schema-spec#656
• dependentRequired & dependentSchemas
  • Split "requiredDependencies" out of "dependencies" json-schema-org/json-schema-spec#573
  • Name the split "dependencies" to "dependent*" json-schema-org/json-schema-spec#617
• minContains & maxContains
  • Add minContains and maxContains json-schema-org/json-schema-spec#525
• $vocabulary
  • "$vocabulary" and basic vocabulary support. json-schema-org/json-schema-spec#671
  • outstanding question in Slack answered
• deprecated
  • Fix #74: add "deprecated" keyword json-schema-org/json-schema-spec#737
• contentSchema
  • Add "contentSchema" json-schema-org/json-schema-spec#673
• New formats
  • uuid (Add "uuid" format json-schema-org/json-schema-spec#715)
  • duration (Add a "duration" format. json-schema-org/json-schema-spec#718)

Also need to:

• Allow $ref alongside other keywords
  • Ref is delegation - try 3 json-schema-org/json-schema-spec#628
  • Added JsonSchemaOptions.RefResolution to determine a strategy for when the draft cannot be determined.
• Return additional annotations for additionalItems & additionalProperties
  • Keywords can depend on subschema or adjacent keyword annotation results json-schema-org/json-schema-spec#600
• Tweak the output format
  • Output Formatting json-schema-org/json-schema-spec#679
• Optimize validation for shortcuttable scenarios
• format should accept all value types, not just string
  • format for non-string data types (complex validation rules) json-schema-org/json-schema-spec#759

I'll try to keep this list updated rather than adding more in further comments.