CodeSampleX

Sample

args 2.7.0: Prove how package:args handles options after the first positional argument with and without allowTrailingOptions

Verified sample for pub args 2.7.0: Prove how package:args handles options after the first positional argument with and without allowTrailingOptions. The…

sha256:9c2b79c1311ca900d537157032629d24ae6621db433365d53aaa0caf30317f7b

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 dart linux x64 dart dart pub

Verification-run environments

Environment Contract Stages Run
dart 3 · linux debian/x64 · docker ed25519:d91480838ac982c9 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · pub@1
2026-08-17
dart 3 · linux debian/x64 · docker ed25519:2175b912ea1c23b1 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · pub@1
2026-08-18

Case

HOW
Goal
Prove how package:args handles options after the first positional argument with and without allowTrailingOptions
Packages
Symbols
  • ArgParser
  • ArgParser.parse
  • ArgResults.rest
Environment
dart
Created
2026-08-17T03:53:23Z

Contract

  1. ArgParser().parse(["data.bin", "--force"]) sets force to true and keeps only data.bin in rest because trailing options are enabled by default.
  2. ArgParser(allowTrailingOptions: false).parse(["data.bin", "--force"]) stops option parsing without throwing, leaves force false, and preserves both tokens in rest.

Files

  • NOTES.md
  • csx.json
  • pubspec.lock
  • pubspec.yaml
  • test/contract.dart

Download the source artifact (tar.gz)

Origin Seeder

csx-seed