[jira] [Created] (AVRO-4314) [csharp] Validate names against the Avro name grammar at parse time

["Ismaël Mejía (Jira)" <ji...@apache.org>]

Ismaël Mejía created AVRO-4314:
----------------------------------

             Summary: [csharp] Validate names against the Avro name grammar at parse time
                 Key: AVRO-4314
                 URL: https://issues.apache.org/jira/browse/AVRO-4314
             Project: Apache Avro
          Issue Type: Bug
          Components: csharp
            Reporter: Ismaël Mejía


The Avro specification requires record/enum/fixed names, field names, enum symbols, and protocol message names to match `[A-Za-z_][A-Za-z0-9_]*` (with dotted namespaces). The Java SDK enforces this during parsing, but the C# SDK does not validate all of these.

In the C# SDK only enum symbols are validated (EnumSchema); record/fixed/enum names, namespaces, field names, and protocol message names are accepted verbatim (SchemaName, Field, Message). Because the C# code generator splices some of these values directly into generated source (for example protocol message names into a `case "..."` label and field names into Get/Put switch bodies via CodeSnippetExpression), an out-of-spec name produces malformed or unexpected generated C# code.

Proposal: validate names, field names, and message names against the Avro name grammar during schema/protocol parsing in the C# SDK, matching the Java SDK behavior, and add tests covering rejection of out-of-spec values.

Note: this ticket was split from the combined [c++][csharp] issue AVRO-4312; the C++ part remains tracked there.



--
This message was sent by Atlassian Jira
(v8.20.10#820010)