perf: index core data structures and reclaim dynamic storage - #17

Merged

Eric-Song-Nop merged 43 commits into

perf/batch-builtin-initializationfrom

perf/indexed-data-structures

Sep 17, 2026

Commits on Sep 10, 2026

docs: plan indexed data structures and maintainable storage boundaries
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bcc23b0
test(perf): add fixed-work data structure scaling workloads
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ebd9bec
perf(map): index SameValueZero keys without record snapshots
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f4dfe5b
perf(set): reuse hashed key lookup for membership and set operations
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e211568
docs(perf): record indexed collection scaling and conformance evidence
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472874c
perf(object): replace unchanged property slots before cloning layouts
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749d83c
docs(perf): record constant-width property update measurements
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d7215e7
perf(modules): index immutable import and export tables
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05813af
test(perf): cover module import and reexport scaling
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a9a9196
perf(compiler): index scope names while preserving binding order
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a134596
perf(compiler): index reusable string constants at the append boundary
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c599662
docs(perf): record compiler scaling including the scope regression
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188f4e0
perf(string): compare and hash flat code units without rope traversal state
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3393600
perf(array): batch sparse length truncation at the layout boundary
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346de77
perf(compiler): index source coordinates once for all debug sites
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b099ab1
docs(perf): record flat strings, batched arrays and source-index evidence
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87e5ee3
docs(test): record focused conformance for the indexed compiler and array changes
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aa7d444
perf(collections): reclaim records behind monotonic iterator identities
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0dbf94f
test(perf): cover iteration after churn with a paused collection cursor
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8c9cc4c
test(perf): vary collection history independently of query counts
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6679b0e
docs(perf): record collection reclamation, capacity bounds and throughput tradeoffs
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3000b9f
perf(string): memoize long key hashes within each collection seed
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51bfb55
perf(object): use compact dictionary slots for dynamic property deletion
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1a18903
docs(perf): record dictionary deletion scaling and representation costs
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f42f7de
perf(atom): keep integer property keys in their immediate representation
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6f20a64
perf(typed-array): classify immediate integer keys without string round trips
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5475d12
perf(arguments): prepare properties before a single object publication
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ad9700c
perf(regexp): batch named captures and result metadata publication
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f907931
perf(heap): preflight small edge transactions without a hash table
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21fdf4a
test(perf): measure integer keys and batched builtin construction
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921b743
perf(array): reuse indexed dictionary storage after dense conversion
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f5c3bad
docs(perf): record holey Array scaling and shared storage rationale
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9ad383d
perf(vm): update Number operands in place on the value stack
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e7111fd
perf(vm): borrow ordinary call arguments from the activation stack
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9ffeb89
docs(perf): record numeric stack gains and flat borrowed-call timing
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2df95ee
test: preserve frozen fixtures and guard borrowed call ownership
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f612d53
refactor: remove redundant index casts and collection temporary
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8051db3
test: align borrowed argument canary with formatted call expression
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5439174
test: keep throw propagation mutation on the runtime call entry
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docs: record unchanged full Test262 outcomes on final engine source
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ccd74d7
docs: map maintenance tasks to data structure owners and invariants
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f228995
docs: record final architecture gate and build validation
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931cfbc
docs: close the data structure plan with final evidence and scope decisions
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d86d606