next.js
turbo-tasks: add hashed cell mode for hash-based change detection without cell data
#91576

Merged

turbo-tasks: add hashed cell mode for hash-based change detection without cell data #91576

sokra merged 28 commits into canary from sokra/store-hash-only

nextjs-bot added created-by: Turbopack team

nextjs-bot added Turbopack

vercel commented on 2026-03-18

sokra force pushed to b8843b4b 52 days ago

sokra commented on 2026-03-19

sokra marked this pull request as ready for review 52 days ago

sokra requested a review from

lukesandberg 51 days ago

sokra force pushed from 2b1c1afc to 4da8bd6d 51 days ago

sokra force pushed from 4da8bd6d to 93a24b03 51 days ago

lukesandberg commented on 2026-03-19

lukesandberg requested changes on 2026-03-19

sokra force pushed from 90d2dd78 to ac5c64b4 50 days ago

sokra force pushed from bb8772f9 to f403949e 46 days ago

sokra force pushed from f403949e to 7e3fb9f9 46 days ago

sokra force pushed from 7e3fb9f9 to b04549b7 45 days ago

lukesandberg commented on 2026-03-26

lukesandberg approved these changes on 2026-03-26

Add cell = "hashed" mode and hash-based cell change detection

3aca7691

Defer hash computation to only when the cell actually needs updating

0d32ef8d

Default cell mode to "hashed" when serialization = "none" and eq is a…

92c0eb60

Revert "Default cell mode to "hashed" when serialization = "none" and…

45affb0e

Replace cell = "hashed" with serialization = "hash"

f76f7bee

Add hash = "manual" opt-out for serialization = "hash" auto-derive

1f1db713

Fix: Documentation for `#[turbo_tasks::value]` macro references non-e…

a9bb50bf

Fix conflicting Hash impl in hashed_cell_mode test

796aa005

Add PersistedFileContent and switch serialization = "hash" to use Det…

5ba214c1

Address review: let macro auto-derive DeterministicHash for FileConte…

919ad4a4

Remove redundant doc line from PersistedFileContent::streaming_compare

e212947f

Address review: add doc comment to PersistedFileContent, fix comment …

fa6b5474

Always update cell_data_hash for non-serializable cells regardless of…

de64238d

Simplify write_file by removing separate persisted_content variable

a87e5f72

Address review: remove unnecessary trace_ignore, fix wording in doc c…

1c42984d

Skip cell_data_hash update when hash value is unchanged

6fd4b889

Detect duplicate assets with different content and emit node/client a…

85df6820

Add hash-based serialization for Code and persist module factory code…

71618f96

Fix clippy warnings in emit.rs

536cea42

Change cell data hash from u64 to u128

117a9830

Fix turbo-tasks-testing missed update_own_task_cell u64→u128

05ba20e9

Add TODO for actual diff in assets_diff

7bb1726e

sokra force pushed from 92f63b4f to 7bb1726e 45 days ago

Update test_schema_size expected LazyField size to 64 after u64→u128

aa868672

Box cell_data_hash field to keep LazyField size at 56 bytes

39b1af09

Improve comment explaining why cell_data_hash is boxed

5fe5f4d1

Box the u128 value in cell_data_hash to keep LazyField at 56 bytes

fc19ba5f

Change cell_data_hash from Box<u128> to [u8; 16]

2de9150b

Represent cell content hash as [u8; 16] throughout the pipeline

e7811ffa

sokra merged 0090db22 into canary 44 days ago

sokra deleted the sokra/store-hash-only branch 44 days ago

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next.js turbo-tasks: add hashed cell mode for hash-based change detection without cell data #91576 Merged

turbo-tasks: add hashed cell mode for hash-based change detection without cell data #91576

next.js
turbo-tasks: add hashed cell mode for hash-based change detection without cell data
#91576

Merged