Sample
attribute.NewSet mutates a provided variadic slice in place to sort and deduplicate it, corrupting the caller's array.
sha256:941874a3f6d0c964a2fd75094a1f5b9eaeb07fac3cb5a2e70c9510c4f1806c94
PUBLISHED
L3_CONTRACT_PASS
MIT-0
Execution evidence
Declared environment and signed verification runs are separated so you can see exactly what this sample proves.
Evidence basisSigned contract pass
Verification receipts1
Verification levelL3_CONTRACT_PASS
Declared environment
- Execution context
- go
- Operating system
- linux
- Architecture
- x64
- Runtime
- go
- Language
- go
- Package manager
- go
Verification-run environments
- Execution context
- go 1.26
- Operating system
- linux alpine · musl
- Architecture
- x64
- Runtime
- go 1.26
- Language
- go
- Package manager
- go
- Execution
- container · docker
CONTAINER_RUN · compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS · golang@1 · 2026-08-17
Case
- Goal
- attribute.NewSet mutates a provided variadic slice in place to sort and deduplicate it, corrupting the caller's array. HOW
- Packages
-
go.opentelemetry.io/otel 1.35.0
- Environment
- go
- Created
- 2026-08-17T23:37:34Z
Commonly assumed
attribute.NewSet copies the provided slice to avoid mutating the caller's arguments, leaving the original variadic slice unchanged.
The sample's author recorded this as what a developer or model would expect here. The contract below is what actually ran.
Contract
- attribute.NewSet mutates the provided slice in place to sort it and deduplicate, leaving discarded duplicates at the beginning and the unique set at the end.
- len(kvs) == 3 remains true
- kvs[0].Value.AsString() == "1"
- kvs[1].Value.AsString() == "3"
- kvs[2].Value.AsString() == "2"
Files
- NOTES.md
- csx.json
- go.mod
- go.sum
- set_test.go
Download the source artifact (tar.gz)
Origin Seeder
csx-seed
Verification receipts
- go 1.26 · linux alpine/x64 · docker · CONTAINER_RUN · compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS · golang@1 · 2026-08-17 · ed25519:d91480838ac982c9