Add a test for respecting dynamic scopes while avoiding the root of each schema #794
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notEthan
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Nov 15, 2025
…ach schema We $ref from base -> first#/$defs/stuff -> second#/$defs/stuff -> third#/$defs/stuff and then follow a $dynamicRef to #length. At no point do we ever actually evaluate at the root schema for each scope. The dynamic scope is [ base, first, second, third ] and we check the scopes in order, therefore the first scope we find with a dynamic anchor "length" is "second".
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Dynamic scopes were only being recorded while evaluating an $id keyword, but if we follow a $ref targeting a sub-resource that lacked an $id but is in a different namespace, the new scope was never recorded. See also json-schema-org/JSON-Schema-Test-Suite#794
jdesrosiers
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notEthan
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We $ref from base -> first#/$defs/stuff -> second#/$defs/stuff -> third#/$defs/stuff and then follow a $dynamicRef to #length. At no point do we ever actually evaluate at the root schema for each scope. The dynamic scope is [ base, first, second, third ] and we check the scopes in order, therefore the first scope we find with a dynamic anchor "length" is "second".
This revealed a bug in my implementation, where dynamic scopes were only being recorded while evaluating an $id keyword, but not when using a $ref that went to a sub-resource that lacked an $id.