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feat(compiler): add compatible mode for idl #3245

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Merged
chaokunyang merged 24 commits into from
Jan 30, 2026
Merged

feat(compiler): add compatible mode for idl #3245

chaokunyang merged 24 commits into from
Jan 30, 2026

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@chaokunyang chaokunyang commented Jan 30, 2026 •
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Why?

  • Enable IDL compatible mode across languages so struct/union metadata and type-def diffs round-trip correctly.

What does this PR do?

  • Align union handling in fingerprints/type IDs across Java/C++/Rust/Python/Go for compatibility.
  • Fix compatible-mode read/write paths for struct/union fields and dynamic type resolution, including named union typedef handling.
  • Improve Go struct detection, primitive array skipping, and type-def diff diagnostics; add debug output hooks in Java/Go/Python.
  • Expand IDL roundtrip coverage for compatible mode and union scenarios.
  • Minor QoL: union string representations.

Related issues

#3099

#2906

Does this PR introduce any user-facing change?

  • Does this PR introduce any public API change?
  • Does this PR introduce any binary protocol compatibility change?

Benchmark

@chaokunyang chaokunyang force-pushed the compatible_test_for_idl branch from e123ed4 to ad28c1c Compare January 30, 2026 09:31
@chaokunyang chaokunyang force-pushed the compatible_test_for_idl branch from ad28c1c to c2b9a18 Compare January 30, 2026 09:50
@chaokunyang chaokunyang force-pushed the compatible_test_for_idl branch from 6dc1368 to 395219a Compare January 30, 2026 10:25
@chaokunyang chaokunyang merged commit 9a48b8d into apache:main Jan 30, 2026
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@urlyy urlyy urlyy approved these changes

@theweipeng theweipeng Awaiting requested review from theweipeng theweipeng is a code owner

@PragmaTwice PragmaTwice Awaiting requested review from PragmaTwice PragmaTwice is a code owner

@pandalee99 pandalee99 Awaiting requested review from pandalee99

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@chaokunyang @urlyy