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Immutable collections based on the SDK collections. Each SDK collection class is split into a new immutable collection class and a corresponding mutable builder class.

Changelog #

5.1.1 #

  • Test fix for new analyzer hint.

5.1.0 #

  • Allow collections with nullable types, for example BuiltList<T?>.
  • Allow key/value types to be dynamic. This can be useful occasionally, and with Dart 2 and null safety it's much harder to use dynamic by accident.

5.0.0 #

  • Stable null safe release.

5.0.0-nullsafety.0 #

  • Migrate to NNBD.
  • Deps on package:collection and package:quiver have been removed.
  • Multimap builders no longer have addAll methods that accept multimaps from quiver. But, the constructors still work with quiver multimaps.

4.3.2 #

  • Add an example folder with some example code.

4.3.1 #

  • Internal: cleanup for pedantic v1.9.0 lints.

4.3.0 #

  • Add extensions methods: List.build, Set.build, Map.build, Iterable.toBuiltList and Iterable.toBuiltSet. Requires SDK 2.6.0.
  • Cleanup: remove unnecessary new and const.

4.2.2 #

  • Bug fix: ListMultimapBuilder.[] no longer ignores modifications under some circumstances.

4.2.1 #

  • Bug fix: ListBuilder first and last setters can no longer modify the underlying collection.

4.2.0 #

  • Add benchmark for VM and dart2js.
  • Stop doing explicit type checks on elements; in Dart 2 these are implied.
  • Modify methods on ListBuilder and SetBuilder that take Iterable elements so they only iterate over the iterable once. Improves performance when the iterable are slow/lazy.

4.1.0 #

  • Add return val to SetBuilder.add() to match Set.add().
  • Expand ListMultimapBuilder: implement [] and add return values to remove and removeAll.

4.0.0 #

  • Many changes following Dart 2 improvements to collections:
    • Implement Iterable methods: cast, followedBy and whereType.
    • Remove obsolete Iterable method: retype.
    • Support orElse in singleWhere.
    • Add BuiltList methods: +, indexWhere, lastIndexWhere.
    • Add ListBuilder setters and getters: first, last.
    • Add BuiltMap methods: entries, map.
    • Add MapBuilder methods: addEntries, updateValue, updateAllValues.
    • Implement Dart 2 methods in internal collections used by toList, toMap and toSet.
  • Add from and of constructors to BuiltList, BuiltMap and BuiltSet. The from constructors, like the current constructors, take collections of any type and check each element. The of constructors, like the SDK of constructors, take a collection of the correct type. This means they can be used for type inference, allowing you to omit the explicit type.
  • Make remove, removeAt and removeLast methods on builders return values like their SDK collection equivalents.

3.2.0 #

  • Add length, isEmpty and isNotEmpty to ListBuilder, MapBuilder and SetBuilder

3.1.3 #

  • Allow SDK 2.0.0.

3.1.2 #

  • Allow quiver 2.0.0, use test version 1.

3.1.1 #

  • Allow quiver 0.29.

3.1.0 #

  • Implement followedBy on BuiltList and BuiltSet.

3.0.5 #

  • Type fixes for DDC. Stop using a Map as a Map<K, V> in MapBuilder.

3.0.4 #

  • Tweaks to tests.

3.0.3 #

  • Allow quiver 0.28.

3.0.2 #

  • Stop using Function() syntax for Set and Map factories. It causes problems for the analyzer when using a pre-Dart-2 SDK.

3.0.1 #

  • Improve package description.

3.0.0 #

  • Prepare for Dart 2; add methods that will appear in Iterable.
  • Allow quiver 0.27.

2.1.3 #

  • Revert changes for Dart 2; they will be re-released as v3.0.0 as they are break libraries that provide their own implementations of built collections.

2.1.2 #

  • Fix changes for Dart 2.

2.1.1 #

  • Prepare for Dart 2; add methods that will appear in Iterable.

2.1.0 #

  • BuiltSet and BuiltMap now allow you to specify the underlying collection type. For example, you can construct a BuiltSet using a SplayTreeSet. This results in a set that is always in sorted order instead of preserving insertion order. Another useful possibility is to use a HashSet, which leads to a random order but improves performance over the default. See SetBuilder.withBase and MapBuilder.withBase.

2.0.0 #

  • Split collection classes into abstract interfaces and concrete, private, implementations. This allows new implementations of the interfaces. Note that this change is invisible unless you rely on the exact runtimeType of the collections.

1.6.2 #

  • Fix a bug whereby ListBuilder and MapBuilder allowed nulls to be introduced via map and expand.

1.6.1 #

  • Allow quiver 0.26.

1.6.0 #

  • The addIterable method is now generic. This allows the types of the functions passed in to be inferred.

1.5.0 #

  • Add BuiltIterable interface for when you want to accept a BuiltList or BuiltSet.

1.4.1 #

  • Use real generic syntax, drop comment-based syntax.

1.4.0 #

  • Add operator[] to ListBuilder and MapBuilder for easier inline updates.

1.3.1 #

  • Allow quiver 0.25.

1.3.0 #

  • Widen parameter of BuiltSet.difference and BuiltSet.intersection to BuiltSet<Object> to match Set.

1.2.0 #

  • Update for Set.difference change in SDK 1.21.0.
  • Add asList, asMap, and asSet to the built collection classes.

1.1.0 #

  • Remove runtime checks that are unnecessary if the project using built_collection is "strong mode clean", that is, if it has no errors with strong mode. See note in README.md about strong mode.

1.0.6 #

  • Allow quiver 0.23.

1.0.5 #

  • Strong mode clean.

1.0.4 #

  • Add reference identity check to equals operators.

1.0.3 #

  • Fix factories when iterable generic type is subtype of requested type.

1.0.2 #

  • Add generic type information to map, fold and expand methods.

1.0.1 #

  • Make map operator[] take Object instead of K, as SDK collections do.
  • Fix toString for result of toList, toSet, toMap.

1.0.0 #

  • Fix missing generics on some return types.
  • Fix BuiltList and BuiltSet "contains" method, should take Object, not E.
  • Add removeAll and retainAll methods to SetBuilder.
  • Add BuiltList.toBuiltSet() and BuiltSet.toBuiltList().
  • Add addIterable methods to Map and Multimap builders.

0.4.0 #

  • Add BuiltSetMultimap.

0.3.1 #

  • Fix "part of" statement.

0.3.0 #

  • Bug fix: fix Iterable "update in place" methods of BuiltList and BuiltSet so they discard original list or set.
  • Make keys and values stable for BuiltMap and BuiltMultimap.
  • Make repeated builds return identical instances for BuiltList, BuiltMap, BuiltSet.
  • Add 'replace' methods.

0.2.0 #

  • Add BuiltListMultimap.

0.1.1 #

  • Fix comments.

0.1.0 #

  • Add build and rebuild methods to BuiltList, BuiltMap, BuiltSet.
  • Add update methods to ListBuilder, MapBuilder, SetBuilder.

0.0.1 #

  • Initial version.
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Immutable collections based on the SDK collections. Each SDK collection class is split into a new immutable collection class and a corresponding mutable builder class.

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