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Support Discriminator defaultMapping for OpenAPI 3.2 (parse + runtime fallback + DefaultMappingBefore32 rule) - #10

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Support Discriminator defaultMapping for OpenAPI 3.2 (parse + runtime fallback + DefaultMappingBefore32 rule)#10
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@modosc modosc commented Sep 18, 2026 •
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  • parses defaultMapping (a schema name or same-document ref)
  • in 3.2 docs (or with allow_3_2_features), it's used as a fallback when the discriminator property is missing
  • also used when the value has no explicit mapping and no implicit schema match
  • a broken explicit mapping still errors
  • 3.0/3.1 docs ignore defaultMapping, and without it error behavior is unchanged (including null/false property values)

depends on #9.

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modosc force-pushed the openapi-3-2/discriminator-default-mapping branch from 8c5dbb6 to 94a2ec1 Compare September 23, 2026 15:40
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modosc force-pushed the openapi-3-2/discriminator-default-mapping branch from 89a7e1e to 85d8438 Compare September 24, 2026 22:28
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@modosc modosc changed the title Support Discriminator defaultMapping for OpenAPI 3.2 (parse + runtime fallback + rule) Support Discriminator defaultMapping for OpenAPI 3.2 (parse + runtime fallback + DefaultMappingBefore32 rule) Sep 24, 2026
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modosc force-pushed the openapi-3-2/discriminator-default-mapping branch from 94cac5c to 4e71009 Compare October 14, 2026 21:07
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modosc force-pushed the openapi-3-2/streaming-media-type-fields branch from b7fd20a to ca906e1 Compare October 27, 2026 16:11
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modosc force-pushed the openapi-3-2/discriminator-default-mapping branch from 745c6fd to 9149adc Compare October 27, 2026 16:11
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@modosc @claude
Support Discriminator defaultMapping for OpenAPI 3.2 (parse + runtime…
df13e8d 
… fallback + DefaultMappingBefore32 rule)

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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modosc force-pushed the openapi-3-2/discriminator-default-mapping branch from 9149adc to df13e8d Compare October 30, 2026 16:17
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modosc force-pushed the openapi-3-2/streaming-media-type-fields branch from ca906e1 to 217b7e4 Compare October 30, 2026 16:17
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modosc commented Nov 2, 2026

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merged upstream

@modosc modosc closed this Nov 2, 2026
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