[Bug]: panics for unused barrel exports when hmr: true #5235
Description
Reproduction link or steps
What is expected?
Should not crash
What is actually happening?
It's crashing with
thread '<unnamed>' panicked at crates/rolldown_common/src/types/symbol_ref_db.rs:216:7:
canonical name not found for SymbolRef { owner: 4, symbol: SymbolId(1) }, original_name: "unused"
stack backtrace:
0: 0x11f68a2ac - _napi_register_module_v1
1: 0x11efa99b4 - _blake3_compress_in_place_portable
2: 0x11f688a74 - _napi_register_module_v1
3: 0x11f68a16c - _napi_register_module_v1
4: 0x11f688668 - _napi_register_module_v1
5: 0x11f6b0760 - _napi_register_module_v1
6: 0x11f6b06d0 - _napi_register_module_v1
7: 0x11f6b1d3c - _napi_register_module_v1
8: 0x11f71641c - _napi_register_module_v1
9: 0x11f773890 - _napi_register_module_v1
10: 0x11f54e06c - _napi_register_module_v1
11: 0x11f49f328 - _napi_register_module_v1
12: 0x11f49b020 - _napi_register_module_v1
13: 0x11f52c738 - _napi_register_module_v1
14: 0x11ee21e7c - <unknown>
15: 0x11ed12d24 - <unknown>
16: 0x11ee22390 - <unknown>
17: 0x11ed12dac - <unknown>
18: 0x11ee22390 - <unknown>
19: 0x11ee9e50c - <unknown>
[error] Uncaught exception occurred. Stopping compilers.
[error] Exiting due to uncaught exception
[error] Panic in async function
Error: Panic in async function
System Info
System:
OS: macOS 15.5
CPU: (8) arm64 Apple M1 Pro
Memory: 124.58 MB / 16.00 GB
Shell: 5.9 - /bin/zsh
Binaries:
Node: 22.17.0 - ~/.asdf/cache/installs/nodejs/22.17.0/bin/node
npm: 10.9.2 - ~/.asdf/cache/plugins/nodejs/shims/npm
pnpm: 10.10.0 - ~/.asdf/cache/shims/pnpm
bun: 1.1.36 - ~/.bun/bin/bun
Browsers:
Chrome: 138.0.7204.94
Safari: 18.5Any additional comments?
It's not crashing if I set treeshake: false or disable hmr.
I can also reproduce the same issue on my private codebase even with treeshake: false but I can't come up with minimal reproducible sample. Maybe it's related to circular imports or/and dynamic imports.