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fix(ec): rayon::ThreadPoolBuilder panic in wasm32#1112

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fix(ec): rayon::ThreadPoolBuilder panic in wasm32#1112
Robert-MacWha wants to merge 3 commits into
arkworks-rs:masterfrom
Robert-MacWha:master

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@Robert-MacWha

@Robert-MacWha Robert-MacWha commented Jun 15, 2026

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Description

Adds a target_arch = "wasm32" feature conditional on the relevant block, falling back to the not(feature = "parallel") case in wasm32.

closes: #1111


Before we can merge this PR, please make sure that all the following items have been
checked off. If any of the checklist items are not applicable, please leave them but
write a little note why.

  • Targeted PR against correct branch (master)
  • Linked to GitHub issue with discussion and accepted design OR have an explanation in the PR that describes this work.
  • Wrote unit tests
  • Updated relevant documentation in the code
  • Added a relevant changelog entry to the Pending section in CHANGELOG.md
  • Re-reviewed Files changed in the GitHub PR explorer

@Robert-MacWha Robert-MacWha marked this pull request as ready for review June 15, 2026 23:36
@Robert-MacWha Robert-MacWha requested review from a team as code owners June 15, 2026 23:36
@Robert-MacWha Robert-MacWha requested review from WizardOfMenlo, mmagician and weikengchen and removed request for a team June 15, 2026 23:36
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ark-ec's msm_unchecked panics when targeting wasm32-unknown-unknown with +parallel

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