mhlakhani opened a new pull request, #3179:
URL: https://github.com/apache/thrift/pull/3179
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This commit fixes two bugs in the Rust Thrift implementation that prevented
UUID fields from working correctly with the compact protocol:
1. Missing UUID case in skip_till_depth function
- The skip function in lib/rs/src/protocol/mod.rs did not handle
TType::Uuid
- This caused "cannot skip field type Uuid" errors when trying to skip
UUID fields
- Fixed by adding: TType::Uuid => self.read_uuid().map(|_| ())
2. Incorrect UUID serialization in compact protocol
- The compact protocol was using read_bytes()/write_bytes() for UUIDs
- These methods include a length prefix, but UUIDs should be transmitted
as raw 16-byte values per the Thrift specification
- This caused "don't know what type: 15" errors during cross-language
tests
- Fixed by reading/writing UUID bytes directly without length prefix
- Implementation now matches the binary protocol's approach for
consistency
The bug manifested as failures in cross-language tests between Go and Rust
when using compact protocol. The error occurred because Go correctly expected
raw 16-byte UUID values while Rust was incorrectly adding a length prefix.
Testing:
- Verified all go-rs and rs-go cross tests now pass with compact protocol
- Tests confirm UUID values are correctly serialized and deserialized
- Both buffered and framed transports work correctly
Test command: python3 test/test.py --server go --client rs -R ".*compact.*"
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