lawyer 0.2.0

A lightweight, dependency-free rule engine for Dart and Flutter. Define ordered allow/deny rules with wildcards and dimensions, then check conditions.

0.2.0

Breaking changes, see the migration guide.

• Renamed Action to RuleAction, which no longer clashes with Flutter's Action class.
• Replaced the Lawyer.instance singleton, setRules and setDimensions with an immutable Lawyer(rules: ..., dimensions: ...).
• Rule now takes typed Criterions (Criterion.any, Criterion.exact, Criterion.oneOf); Rule.from keeps the untyped shorthand. Added Rule.allow and Rule.deny.
• Dimension now describes a single position; pass one per position.
• Every condition is validated against its dimension, and rules are validated against the dimensions when the Lawyer is created.
• An empty rule list denies everything instead of throwing; empty conditions throw an ArgumentError.
• Removed the Flutter dependency; this is now a pure Dart package.

Fixes

• Strings were matched as substrings ('Gold' matched 'Gold member', and '' matched anything).
• Repeated elements in a rule, such as two wildcards, were checked at the wrong position.
• Rules longer than the dimensions threw a RangeError, and unsupported rule elements threw a NoSuchMethodError during check.

Other

• Added Lawyer.matchingRule to explain a decision, and Rule.matches.
• Added ==, hashCode and toString to Rule, Criterion and Dimension.
• Added API documentation, a complete README and many more tests.
• Added CI.

0.1.2

• Version bump only.

0.1.1

• Updated the package description and README.

0.1.0

• Added the repository link.

0.0.1

• Initial release.