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Eliminate usages of ImmutableBuilder #16

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joshlemer opened this issue Apr 25, 2019 · 0 comments
Open

Eliminate usages of ImmutableBuilder #16

joshlemer opened this issue Apr 25, 2019 · 0 comments

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@joshlemer
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ImmutableBuilder is currently being used as the default builder implementation for:

  • immutable.MultiDict
  • immutable.SortedMultiDict
  • immutable.MultiSet
  • immutable.SortedMultiSet

However, it should be possible, for the sake of performance, to build mutating versions of these, which would mostly be delegating to already-implemented mutating builders of Maps in the standard library (i.e. scala.collection.immutable.{MapBuilderImpl, HashMapBuilder})

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