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Fix SubscriptionRef getAndUpdateSome None result - #6849

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tim-smart merged 2 commits into
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audit/repro-core-subscriptionref-none-result
Aug 2, 2026
Merged

Fix SubscriptionRef getAndUpdateSome None result#6849
tim-smart merged 2 commits into
mainfrom
audit/repro-core-subscriptionref-none-result

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@fubhy

@fubhy fubhy commented Aug 1, 2026

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Summary

  • adds a regression test for SubscriptionRef.getAndUpdateSome
  • returns the current value directly when Option.none selects no update

Covered audit issue

1. core-s-z-testing-subscription-ref-nested-effect: getAndUpdateSome returns a nested Effect on None

Module: SubscriptionRef

Expected contract: getAndUpdateSome returns the old A whether the update is Option.some or Option.none.

Observed result: success Exit object instead of 1

Reproduction command:

pnpm test --run packages/effect/test/SubscriptionRef.test.ts -t "getAndUpdateSome returns the current value when no update is selected"

Closes EFF-293

@github-project-automation github-project-automation Bot moved this to Discussion Ongoing in PR Backlog Aug 1, 2026
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changeset-bot Bot commented Aug 1, 2026

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🦋 Changeset detected

Latest commit: f1607ba

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 30 packages
Name Type
effect Patch
@effect/opentelemetry Patch
@effect/platform-browser Patch
@effect/platform-bun Patch
@effect/platform-deno Patch
@effect/platform-node-shared Patch
@effect/platform-node Patch
@effect/vitest Patch
@effect/ai-anthropic Patch
@effect/ai-openai-compat Patch
@effect/ai-openai Patch
@effect/ai-openrouter Patch
@effect/atom-react Patch
@effect/atom-solid Patch
@effect/atom-vue Patch
@effect/sql-clickhouse Patch
@effect/sql-d1 Patch
@effect/sql-libsql Patch
@effect/sql-mssql Patch
@effect/sql-mysql2 Patch
@effect/sql-pg Patch
@effect/sql-pglite Patch
@effect/sql-sqlite-bun Patch
@effect/sql-sqlite-do Patch
@effect/sql-sqlite-node Patch
@effect/sql-sqlite-react-native Patch
@effect/sql-sqlite-wasm Patch
@effect/docgen Patch
@effect/doctest Patch
@effect/openapi-generator Patch

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@effect-slopcop effect-slopcop Bot added 4.0 bug Something isn't working labels Aug 1, 2026

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✅ No new issues found.

Reviewed changes

  • Reproduction test for getAndUpdateSome None branch bug — adds a test that calls getAndUpdateSome with () => Option.none() and asserts the previous value is returned as 1. The test correctly reproduces the bug where the None branch at packages/effect/src/SubscriptionRef.ts:377 returns Effect.succeed(current) instead of current, causing a nested Effect to leak out.

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@tim-smart tim-smart changed the title Add reproduction for SubscriptionRef issue Fix SubscriptionRef getAndUpdateSome None result Aug 2, 2026
@effect-slopcop effect-slopcop Bot added 3.0 Used for issues, pull requests, etc. that are relevant for the `v3` branch targeting Effect v3. and removed 4.0 labels Aug 2, 2026

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✅ No new issues found.

Reviewed changes

  • Fixed getAndUpdateSome None-branch return — changed return Effect.succeed(current) to return current at packages/effect/src/SubscriptionRef.ts:377, matching the pattern of all other *Some* functions in the file. The reproduction test now passes.
  • Added changeset — patch-level release note for the bug fix.

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@tim-smart
tim-smart enabled auto-merge (squash) August 2, 2026 22:45
@tim-smart
tim-smart merged commit b46c92f into main Aug 2, 2026
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@tim-smart
tim-smart deleted the audit/repro-core-subscriptionref-none-result branch August 2, 2026 23:00
@github-project-automation github-project-automation Bot moved this from Discussion Ongoing to Done in PR Backlog Aug 2, 2026
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github-actions Bot commented Aug 2, 2026

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Bundle Size Analysis

Generated from PR build output; treat the content below as untrusted.

File Name Current Size Previous Size Difference
basic.ts 6.65 KB 6.65 KB 0.00 KB (0.00%)
batching.ts 9.44 KB 9.44 KB 0.00 KB (0.00%)
brand.ts 6.33 KB 6.33 KB 0.00 KB (0.00%)
cache.ts 10.20 KB 10.20 KB 0.00 KB (0.00%)
config.ts 20.34 KB 20.34 KB 0.00 KB (0.00%)
differ.ts 19.95 KB 19.95 KB 0.00 KB (0.00%)
http-client.ts 21.04 KB 21.04 KB 0.00 KB (0.00%)
logger.ts 10.35 KB 10.35 KB 0.00 KB (0.00%)
metric.ts 8.58 KB 8.58 KB 0.00 KB (0.00%)
optic.ts 7.34 KB 7.34 KB 0.00 KB (0.00%)
pubsub.ts 14.49 KB 14.49 KB 0.00 KB (0.00%)
queue.ts 11.15 KB 11.15 KB 0.00 KB (0.00%)
schedule.ts 10.33 KB 10.33 KB 0.00 KB (0.00%)
schema-class.ts 18.88 KB 18.88 KB 0.00 KB (0.00%)
schema-fromJsonSchemaDocument.ts 28.69 KB 28.69 KB 0.00 KB (0.00%)
schema-representation-roundtrip.ts 25.01 KB 25.01 KB 0.00 KB (0.00%)
schema-string-transformation.ts 13.01 KB 13.01 KB 0.00 KB (0.00%)
schema-string.ts 10.66 KB 10.66 KB 0.00 KB (0.00%)
schema-template-literal.ts 14.87 KB 14.87 KB 0.00 KB (0.00%)
schema-toArbitraryLazy.ts 21.67 KB 21.67 KB 0.00 KB (0.00%)
schema-toCodeDocument.ts 24.10 KB 24.10 KB 0.00 KB (0.00%)
schema-toCodecJson.ts 18.93 KB 18.93 KB 0.00 KB (0.00%)
schema-toEquivalence.ts 18.74 KB 18.74 KB 0.00 KB (0.00%)
schema-toFormatter.ts 18.61 KB 18.61 KB 0.00 KB (0.00%)
schema-toJsonSchemaDocument.ts 22.36 KB 22.36 KB 0.00 KB (0.00%)
schema-toRepresentation.ts 19.28 KB 19.28 KB 0.00 KB (0.00%)
schema.ts 18.14 KB 18.14 KB 0.00 KB (0.00%)
stm.ts 12.13 KB 12.13 KB 0.00 KB (0.00%)
stream.ts 9.38 KB 9.38 KB 0.00 KB (0.00%)

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Labels

3.0 Used for issues, pull requests, etc. that are relevant for the `v3` branch targeting Effect v3. bug Something isn't working

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Status: Done

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2 participants