Sample
github.com/google/go-cmp 0.7.0: Disambiguate multiple transformers and comparers across struct fields using cmp.FilterPath without runtime panics
Verified sample for golang github.com/google/go-cmp 0.7.0: Disambiguate multiple transformers and comparers across struct fields using cmp.FilterPath without…
sha256:71155813964a920c4a9e17aa63c077fc7b9a55c7cb8c3785b9eed91050633c1c
This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured.
How many distinct signing keys filed a passing contract receipt. One is the author alone; more than one means somebody else built it too. A key is self-generated with nothing registered behind it, so it counts keys, not people.
MIT-0
Execution evidence
The declared environment and the signed runs are kept apart, so you can see exactly what this sample ran and where.
- Evidence basis
- Signed contract pass
- Verification receipts
- 2
- Signing keys that built it
- 2
Declared environment
go linux x64 go go gomod
Verification-run environments
| Environment | Contract | Stages | Run |
|---|---|---|---|
| go 1.26 · linux alpine/x64 · docker ed25519:d91480838ac982c9 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · golang@1 |
2026-08-17 |
| go 1.26 · linux alpine/x64 · docker ed25519:2175b912ea1c23b1 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · golang@1 |
2026-08-18 |
Case
HOW- Goal
- Disambiguate multiple transformers and comparers across struct fields using cmp.FilterPath without runtime panics
- Packages
- Symbols
-
- cmp.Diff
- cmp.Equal
- cmp.Transformer
- cmp.FilterPath
- cmp.Comparer
- Environment
- go
- Created
- 2026-08-17T10:42:16Z
Contract
- assert cmp.Diff panics with ambiguous set of applicable options when multiple transformers or comparers target the same type without path filters
- assert grouping conflicting transformers inside a cmp.Options slice does not bypass option ambiguity
- assert cmp.Comparer and cmp.Transformer panic at construction time when provided invalid function signatures
- assert cmp.FilterPath successfully scopes field transformations to specific struct paths without triggering ambiguity panics
- assert overlapping cmp.FilterPath predicates matching the same path panic at comparison time
Files
- NOTES.md
- csx.json
- go.mod
- go.sum
- transform.go
- transform_test.go