[http-server-js] handle Enum type in JSON serialization transpose helpers#10059
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witemple-msft merged 3 commits intomicrosoft:mainfrom Mar 19, 2026
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… helpers Adds `case "Enum": return expr;` to both `transposeExpressionToJson()` and `transposeExpressionFromJson()` in json.ts. Generated TS enums map to primitive (string/numeric) values that are directly JSON-compatible, so a no-op return is semantically correct. Fixes microsoft#9999 — crash when a model property has an Enum type and the enclosing model requires a JSON serializer (e.g. because a property name is a reserved keyword or has a wire-name rename). Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
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Adds
case "Enum": return expr;to bothtransposeExpressionToJson()andtransposeExpressionFromJson()in json.ts. Generated TS enums map to primitive (string/numeric) values that are directly JSON-compatible, so a no-op return is semantically correct.Fixes #9999 — crash when a model property has an Enum type and the enclosing model requires a JSON serializer (e.g. because a property name is a reserved keyword or has a wire-name rename).