[AVRO-3897] Disallow invalid namespace in fully qualified name for Rust SDK

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.12.0, 1.11.4
• Component/s: rust
• Labels: pull-request-available
• Assignee: Kousuke Saruta
• Reporter: Kousuke Saruta
• Created: 29/Oct/23 16:42
• Updated: 02/Nov/23 09:55
• Resolved: 02/Nov/23 09:55

Description

Currently, the Rust SDK allows the following fully qualified names with Name::new.

Name::new("ns.0.record1")
Name::new("ns..record1")

But they should be disallowed according to the specification.
https://avro.apache.org/docs/1.11.1/specification/#names

The name portion of the fullname of named types, record field names, and enum symbols must:

start with [A-Za-z_]
subsequently contain only [A-Za-z0-9_]

The null namespace may not be used in a dot-separated sequence of names. So the grammar for a namespace is:

  <empty> | <name>[(<dot><name>)*]

Issue Links

• links to: GitHub Pull Request #2570