Sample
args 2.7.0: Retrieve parsed options and flags via their canonical names from ArgResults when using aliases
Verified sample for pub args 2.7.0: Retrieve parsed options and flags via their canonical names from ArgResults when using aliases. The contract ran on dart…
sha256:1966c97c2d75ab9245ada1be26ad968056fdaaad28f126163a7f3bf75d7ed626
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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 |
2026-08-16 |
| 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
- Retrieve parsed options and flags via their canonical names from ArgResults when using aliases
- Packages
- Symbols
-
- ArgParser
- ArgParser.addOption
- ArgParser.addFlag
- ArgParser.addMultiOption
- ArgResults
- ArgResults.wasParsed
- Environment
- dart
- Created
- 2026-08-17T02:03:07Z
Contract
- ArgResults throws an ArgumentError when queried with an alias name via operator [] or wasParsed(), requiring all lookups to use the canonical option name regardless of how the option was supplied on the command line.
- assert parsing --dest assigns the value to canonical key results['target'] with wasParsed('target') true
- assert results['dest'] and results.wasParsed('dest') both throw ArgumentError for option alias
- assert parsing --no-simulate assigns false to canonical key results['dry-run'] with wasParsed('dry-run') true
- assert results['simulate'] and results.wasParsed('simulate') both throw ArgumentError for flag alias
- assert results['filter'] throws ArgumentError for multi-option alias
- assert results.options contains only canonical names and excludes configured aliases
Files
- NOTES.md
- csx.json
- pubspec.lock
- pubspec.yaml
- test/contract.dart