fix(openapi3): remove stray items when array is encoded to a scalar

[timotheeguerin]

Fixes #9216

Problem

For a property whose array type is encoded to a scalar via @encode (e.g. ArrayEncoding.commaDelimited), the emitter overrode the schema type from array to the scalar but left a stray items section behind:

"prop": { "type": "string", "items": { "type": "string" }, "format": "ArrayEncoding.commaDelimited" }

Fix

In applyEncoding, when the encoded type is no longer an array, items/prefixItems are removed. The format value is intentionally left unchanged (out of scope).

Tests

Added a test asserting no items is emitted for a @encode(ArrayEncoding.commaDelimited) array property.

[pkg-pr-new]

Open in StackBlitz

npm i https://pkg.pr.new/@typespec/openapi3@11203

commit: 16b15a2

[github-actions]

All changed packages have been documented.

• ✅ @typespec/openapi3

Show changes

@typespec/openapi3 - fix ✏️

Fix stray items being emitted on a property whose array type is encoded to a scalar via @encode (e.g. ArrayEncoding.commaDelimited).

[azure-sdk-automation]

You can try these changes here

🛝 Playground	🌐 Website	🛝 VSCode Extension