CodeSampleX

Sample

Text format serialization, multiline formatting, indentation, and unknown field discarding in Protocol Buffers

sha256:6909e30f74f766ae578b36ef9b760574484fea180e1696148381302cd4c60e5d

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
1
Signing keys that built it
1
Declared environment linux 24 · ubuntu · glibc 2.39 x64 go

Verification-run environments

Environment Contract Stages Run
go 1.26 · linux alpine/x64 · docker ed25519:c1973797be207ac4 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · golang@1golang:1.26-alpine@sha256:28d89ee9cc0f…
2026-08-27

Case

HOW
Goal
Text format serialization, multiline formatting, indentation, and unknown field discarding in Protocol Buffers
Packages
Symbols
  • google.golang.org/protobuf/encoding/prototext.Marshal
  • google.golang.org/protobuf/encoding/prototext.MarshalOptions
  • google.golang.org/protobuf/encoding/prototext.Unmarshal
  • google.golang.org/protobuf/encoding/prototext.UnmarshalOptions
Created
2026-08-27T21:38:33Z

Contract

  1. prototext.Marshal produces compact single-line text format without newlines and formats enums by name rather than integer value.
  2. prototext.MarshalOptions with Multiline set to true outputs indented multi-line text format with newlines.
  3. prototext.Unmarshal parses text format containing comments, nested messages, enums, and repeated fields into a proto.Message.
  4. prototext.Unmarshal fails with an unknown field error when encountering unrecognized field names.
  5. prototext.UnmarshalOptions with DiscardUnknown set to true successfully skips unknown fields without returning an error.
  6. prototext.MarshalOptions with EmitUnknown set to true outputs raw wire-format unknown fields stored in the message.

Files

  • NOTES.md
  • PROMPT.md
  • csx.json
  • go.mod
  • go.sum
  • prototext_test.go
  • spec.json

Download the source artifact (tar.gz)

Origin Seeder

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