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feat(compiler/runtime): use hash for generated class as id and refactor user type id encoding #3248

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Merged
chaokunyang merged 70 commits into from
Feb 3, 2026
Merged

feat(compiler/runtime): use hash for generated class as id and refactor user type id encoding #3248

chaokunyang merged 70 commits into from
Feb 3, 2026

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@chaokunyang chaokunyang commented Jan 31, 2026 •
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Why?

Enable deterministic auto-generated type IDs for FDL/IDL (with optional aliases) so generated code can register by ID without requiring manual IDs for every type.

What does this PR do?

  • Add compiler support for auto-generated type IDs (MurmurHash3), package/type aliases, and the enable_auto_type_id file option; propagate generated IDs into IR and codegen comments/registration.
  • Update xlang type metadata/resolvers to carry a separate user type ID (C++/Go/Dart/Java) and adjust type-info encoding and registration flows accordingly.
  • Improve Go codegen output path resolution by reading go.mod when present.
  • Expand docs and tests (compiler + IDL roundtrip) to cover auto IDs and aliasing.

Related issues

#3099

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?

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@chaokunyang chaokunyang force-pushed the use_generated_hash_for_generated_class_as_name branch from 89b4b06 to 2bef18d Compare February 3, 2026 14:27
@chaokunyang chaokunyang changed the title feat(compiler): use generated hash for generated class as id feat(compiler): use generated hash for generated class as id and refactor type user type id encoding Feb 3, 2026
@chaokunyang chaokunyang changed the title feat(compiler): use generated hash for generated class as id and refactor type user type id encoding feat(compiler): use hash for generated class as id and refactor type user type id encoding Feb 3, 2026
@chaokunyang chaokunyang changed the title feat(compiler): use hash for generated class as id and refactor type user type id encoding feat(compiler): use hash for generated class as id and refactor user type id encoding Feb 3, 2026
@chaokunyang chaokunyang force-pushed the use_generated_hash_for_generated_class_as_name branch from 782502f to d4939f0 Compare February 3, 2026 15:15
@chaokunyang chaokunyang changed the title feat(compiler): use hash for generated class as id and refactor user type id encoding feat(compiler/runtime): use hash for generated class as id and refactor user type id encoding Feb 3, 2026
@chaokunyang chaokunyang merged commit 9891bde into apache:main Feb 3, 2026
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@pandalee99 pandalee99 pandalee99 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

@urlyy urlyy Awaiting requested review from urlyy

@LiangliangSui LiangliangSui Awaiting requested review from LiangliangSui

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@chaokunyang @pandalee99