CodeSampleX

Sample

verify github.com/jackc/pgx/v5.CopyFromSlice in pkg:golang/github.com/jackc/pgx/v5@v5.10.0

sha256:a17b00cc762f9a295e022ea87b8affac894c9906a09dfce46ce558eb31f27fd4

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 windows 11 x64 go

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
verify github.com/jackc/pgx/v5.CopyFromSlice in pkg:golang/github.com/jackc/pgx/v5@v5.10.0
Packages
Symbols
  • github.com/jackc/pgx/v5.CopyFromSlice
Created
2026-08-18T22:31:13Z

Contract

  1. pgx.CopyFromSlice returns CopyFromSource using length and generator function
  2. pgx.CopyFromSource.Next advances index and returns false when exhausted
  3. pgx.CopyFromSource.Values invokes generator for current index and returns row slice
  4. pgx.CopyFromSource.Err returns nil on clean iteration completion
  5. pgx.CopyFromSlice handles empty slice (length 0) with immediate false on Next
  6. pgx.CopyFromSource propagates generator errors via Values and Err
  7. sample helpers construct typed slice sources, generate indexed rows, collect values, and count rows

Files

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

Download the source artifact (tar.gz)

Origin Seeder

anonymous