id_pair_set 2.0.0

An immutable set of identifiers keyed by type, with explicit duplicate reporting and JSON round-tripping: one id per namespace for the same thing.

2.0.0 - 2026-09-19

Rebuilt so a catalog, a loader or a diff gate can trust the value.

Added

• IdPair<T> — the id type keeps its static type (an enum, a string), replacing the dynamic getter. props is implemented by the base, so subclasses only override what they add.
• SimpleIdPair — the concrete string-keyed pair, so the common case needs no subclass.
• toJson, IdPairSet.fromJson (with a pair builder) and IdPairSet.fromPlainJson — a wire format that round-trips, replacing the unparseable toString.
• duplicates and hasDuplicates — every pair displaced by a duplicate id type is reported instead of vanishing.
• DuplicatePolicy (firstWins / lastWins) — the duplicate rule is named rather than a bare boolean.
• operator [], contains, containsCode, containsType, idTypes, length, isEmpty, isNotEmpty, policy, pairs.
• remove (exact pair) and removeType (whatever code a type held).
• idTypeKey — the one definition of how an id type is named on the wire, so a stored key and a looked-up key cannot drift.

Changed

• Equality and hashCode are order-insensitive: two sets holding the same pairs are equal however they were built. Previously a no-op addPair of an identical pair reordered the set and broke equality while toString stayed identical.
• add is an explicit upsert: the incoming pair wins for its type.
• toString is documented as a display rendering, not a wire format (a code may contain the : and | separators).
• SDK constraint is now >=3.10.0 <4.0.0; equatable ^2.1.0 (the deprecated EquatableMixin is gone, so the package analyzes clean at --fatal-infos).

Removed

• idPairs (renamed pairs), getByType (replaced by operator [] and pairs), keepLast (replaced by DuplicatePolicy), and addPair / removePair (renamed add / remove).

1.2.0 - 2025-12-30

Removed

• IdRegistry and DuplicateIdException moved to the id_registry package.

Changed

• Documentation now points at id_registry for cross-set uniqueness.

1.1.0 - 2025-12-30

Added

• IdRegistry for global uniqueness across IdPairSets, plus DuplicateIdException and a clean-architecture example.

1.0.3 - 2025-12-06

Changed

• Documentation. I really want those pub.dev points.

1.0.2 - 2025-12-06

Changed

• Documentation.

1.0.1 - 2025-12-06

Changed

• Documentation.

1.0.0 - 2025-12-06

Added

• Initial release: IdPair, IdPairSet, add/remove/filter by type, a sorted toString, and equatable equality.