CodeSampleX

Sample

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

sha256:1e9f376dca52c20a1f4eb3321c094ab1e2952d4e19b2f3e2e2972773a6e71c95

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 go 1.26 windows 11 x64 go 1.26 go go 1

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 pkg:golang/github.com/jackc/pgx/v5@v5.10.0
Packages
Symbols
  • github.com/jackc/pgx/v5.RowToAddrOfStructByPos
Environment
go 1.26.5
Created
2026-08-19T02:28:00Z

Contract

  1. pgx.RowToAddrOfStructByPos maps row columns to struct fields positionally in declaration order and returns a pointer to the struct
  2. pgx.RowToAddrOfStructByPos ignores unexported struct fields when mapping column positions
  3. pgx.RowToAddrOfStructByPos handles nullable pointer fields and assigns nil when column value is null
  4. pgx.RowToAddrOfStructByPos returns an error when column count does not match exported struct field count
  5. pgx.CollectRows with RowToAddrOfStructByPos collects multiple rows into struct pointer slices and closes rows upon completion
  6. pgx.CollectOneRow and pgx.CollectExactlyOneRow work with RowToAddrOfStructByPos and return ErrNoRows and ErrTooManyRows as expected
  7. sample helpers CollectAddrOfStructsByPos, CollectOneAddrOfStructByPos, and CollectExactlyOneAddrOfStructByPos provide typed struct pointer collection

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