Chris Tate d68a705975 Read a union's discriminant once in checked casts ...

A checked cast into a union whose discriminant has four or more string
literals reads the discriminant field once (scr_dyn_discriminant_case)
and then tests only the arms whose literal it holds and the arms without
a literal, in the union's arm order. Every other arm's literal test would
fail, so the arm chosen and the error for a value no arm matches are
unchanged. A typed capsule, an accessor or an inherited discriminant
still takes the tests arm by arm. Unions with fewer literals emit the
same code as before.

2026-10-23 22:31:08 -05:00

..

alloc-trees.json

Keep each runtime benchmark workload in its own file

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alloc-trees.ts

Add a runtime benchmark suite with Node-verified A/B timing

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ast-interp.json

Keep each runtime benchmark workload in its own file

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ast-interp.ts

Add a runtime benchmark suite with Node-verified A/B timing

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async-pipeline.json

Keep each runtime benchmark workload in its own file

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async-pipeline.ts

Add a runtime benchmark suite with Node-verified A/B timing

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atomics-contended.json

Keep each runtime benchmark workload in its own file

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atomics-contended.ts

Run Atomics on shared storage without a lock

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channel-messages.json

Keep each runtime benchmark workload in its own file

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channel-messages.ts

Size encoded messages to their nodes and wake a channel's owner once per batch

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cli-config.json

Keep each runtime benchmark workload in its own file

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cli-config.ts

Add server and startup workloads to the runtime benchmark suite

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csv-numbers.json

Keep each runtime benchmark workload in its own file

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csv-numbers.ts

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cyclic-graphs.json

Keep each runtime benchmark workload in its own file

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cyclic-graphs.ts

Collect dropped cyclic graphs while they are in cache and skip redundant walks

2026-10-15 18:26:48 -05:00

dictionary-walks.json

Test for-in key presence in the overflow map instead of a fresh key list

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dictionary-walks.ts

Test for-in key presence in the overflow map instead of a fresh key list

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dynamic-methods.json

Dispatch checked-dynamic method calls on method ids

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dynamic-methods.mjs

Dispatch checked-dynamic method calls on method ids

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functional-pipeline.json

Keep each runtime benchmark workload in its own file

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functional-pipeline.ts

Add a runtime benchmark suite with Node-verified A/B timing

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http-api.json

Keep each runtime benchmark workload in its own file

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http-api.ts

Add server and startup workloads to the runtime benchmark suite

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index-cursors.json

Keep loop-carried locals written from int32 element reads int32

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index-cursors.ts

Keep loop-carried locals written from int32 element reads int32

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intern-table-1.json

Keep each runtime benchmark workload in its own file

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intern-table-map-1.json

Keep each runtime benchmark workload in its own file

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intern-table-map.json

Keep each runtime benchmark workload in its own file

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intern-table.json

Keep each runtime benchmark workload in its own file

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intern-table.ts

Add InternTable, a shared append-only table of published values

2026-10-15 19:59:56 -05:00

inventory-report.json

Keep each runtime benchmark workload in its own file

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json-records.json

Keep each runtime benchmark workload in its own file

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json-records.ts

Add a runtime benchmark suite with Node-verified A/B timing

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json-unions.json

Read a union's discriminant once in checked casts

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json-unions.ts

Read a union's discriminant once in checked casts

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log-lines.json

Keep each runtime benchmark workload in its own file

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log-lines.ts

Add a logging-heavy runtime benchmark workload

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log-summary.json

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number-maps.json

Keep each runtime benchmark workload in its own file

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number-maps.ts

Probe hashed number-key Map/Set lookups inline

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numeric-kernels.json

Keep each runtime benchmark workload in its own file

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numeric-kernels.ts

Add a runtime benchmark suite with Node-verified A/B timing

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optional-fields.json

Keep each runtime benchmark workload in its own file

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optional-fields.ts

Store scalar-union fields inline in records and objects

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published-graphs.json

Keep each runtime benchmark workload in its own file

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published-graphs.ts

Take published objects out of the candidate buffers during the walk

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record-boundaries.json

Keep each runtime benchmark workload in its own file

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record-boundaries.ts

Widen record parameters and returns by flow class

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records-sort.json

Keep each runtime benchmark workload in its own file

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records-sort.ts

Add a runtime benchmark suite with Node-verified A/B timing

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regex-logs.json

Keep each runtime benchmark workload in its own file

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regex-logs.ts

Add a runtime benchmark suite with Node-verified A/B timing

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region-builds.json

Keep each runtime benchmark workload in its own file

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region-builds.ts

Retry a kept region only when its counted references change

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template-render.json

Keep each runtime benchmark workload in its own file

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template-render.ts

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thread-slots-cache.json

Keep each runtime benchmark workload in its own file

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thread-slots.json

Keep each runtime benchmark workload in its own file

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thread-slots.ts

Add ThreadSlots, per-thread values keyed by objects, to @scriptc/experimental

2026-10-18 04:11:02 -05:00

typed-array-kernels.json

Version loops to a typed array's length on every typed array they index

2026-10-22 01:11:37 -05:00

typed-array-kernels.ts

Merge main

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typed-array-scan-kernels.ts

Keep typed-array indices integral through the shared-buffer check

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typed-array-scan-workers.json

Keep each runtime benchmark workload in its own file

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typed-array-scan-workers.ts

Keep typed-array indices integral through the shared-buffer check

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typed-array-scan.json

Keep each runtime benchmark workload in its own file

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typed-array-scan.ts

Keep typed-array indices integral through the shared-buffer check

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unicode-lexer.json

Keep each runtime benchmark workload in its own file

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unicode-lexer.ts

Read non-ASCII scan receivers inline in worker executables and keep units for longer texts

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validate-errors.json

Keep each runtime benchmark workload in its own file

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validate-errors.ts

Add a runtime benchmark suite with Node-verified A/B timing

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value-objects.json

Keep each runtime benchmark workload in its own file

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value-objects.ts

Keep non-escaping number records and objects in frame storage

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value-records.json

Keep each runtime benchmark workload in its own file

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value-records.ts

Keep records, tuples and spread updates that own references in frame storage

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word-graph.json

Keep each runtime benchmark workload in its own file

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word-graph.ts

Add a runtime benchmark suite with Node-verified A/B timing

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worker-messages.json

Merge main

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worker-messages.ts

Spin briefly before a mailbox wait blocks, and signal after the unlock

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