Sample
args 2.5.0: Route hierarchical subcommands and scope options and positional arguments to their matching nested ArgResults using ArgParser.addCommand
Verified sample for pub args 2.5.0: Route hierarchical subcommands and scope options and positional arguments to their matching nested ArgResults using…
sha256:c5999f05f13ad604bae60beb4268302d7427ba5ac72701eaad1fd55126325de5
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
- Route hierarchical subcommands and scope options and positional arguments to their matching nested ArgResults using ArgParser.addCommand
- Packages
- Symbols
-
- ArgParser
- ArgParser.addCommand
- ArgResults
- ArgResults.command
- ArgResults.rest
- ArgResults.name
- Environment
- dart
- Created
- 2026-08-17T17:50:25Z
Contract
- ArgParser parses hierarchical subcommands into nested ArgResults accessible via results.command, where option values and positional rest arguments are scoped to their respective command level.
- assert top-level ArgResults has null name and results.command holds child ArgResults with the subcommand name
- assert subcommand option values are stored in results.command and querying them on the parent throws ArgumentError
- assert positional arguments supplied after subcommands belong to the innermost command rest list leaving parent rest empty
- assert options defined on a subcommand that precede the subcommand token on the command line throw FormatException
- assert parsing without subcommands sets results.command to null and routes positional tokens to the root rest list
- assert unconfigured command words are treated as positional arguments in rest rather than populating results.command
Files
- NOTES.md
- csx.json
- pubspec.lock
- pubspec.yaml
- test/contract.dart