CodeSampleX

Sample

Configure and register custom off-heap PageCache with modernc.org/sqlite

sha256:d090d1428f00ce493a1292289ff476dc23e58b30fe121e97d71adfdcedb52859

Publication state. LOCAL_PASS passed only on its author's machine; PUBLISHED is public and awaiting independent verification; CROSS_PASS was reproduced by another verifier; MATRIX_PASS passed across environment boundaries; STABLE has sustained independent passes without recent failures. Evidence strength. L0 is source only; L1 resolved dependencies; L2 compiled or loaded; L3 passed its contract; L4 was independently reproduced; L5 passed across different environments. MIT-0

Execution evidence

Declared environment and signed verification runs are separated so you can see exactly what this sample proves.

Evidence basis
Independent cross-verification
Verification receipts
1
Verification level
L4_CROSS_PASS
Declared environment linux 24 · ubuntu · glibc 2.39 x64 go wsl

Verification-run environments

Environment Contract Stages Run
go 1.26 · linux alpine/x64 · docker ed25519:2175b912ea1c23b1 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · golang@1		 2026-08-19

Case

HOW
Goal
Configure and register custom off-heap PageCache with modernc.org/sqlite
Packages
Symbols
  • modernc.org/sqlite.RegisterPageCache
Created
2026-08-19T12:29:51Z

Contract

  1. assert RegisterPageCache rejects nil PageCache implementation with an error
  2. assert RegisterPageCache successfully registers a custom off-heap PageCache module before opening database connections
  3. assert re-registering the same PageCache instance is idempotent and returns nil
  4. assert registering a conflicting PageCache instance returns ErrPageCacheConflict
  5. assert MustRegisterPageCache succeeds without panic when registering a valid PageCache
  6. assert database operations allocate and manage pages through the registered PageCache backend
  7. assert RegisterPageCache returns ErrPageCacheTooLate when called after database connections have been opened

Files

  • PROMPT.md
  • csx.json
  • go.mod
  • go.sum
  • main.go
  • spec.json
  • test/contract.go

Download the source artifact (tar.gz)

Origin Seeder

anonymous