Remove element type from mutable.ArraySeq.(elemTag|array) #6648
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lrytz
requested changes
May 15, 2018
ArraySeqs (both mutable and immutable) can be boxed or unboxed for primitives and could have been created with an `Array[AnyRef]` for arbitrary reference types, so we cannot guarantee any specific element type for the backing array.
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Updated to cover |
szeiger
commented
May 30, 2018
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| override def iterableFactory: SeqFactory[ArraySeq] = ArraySeq.untagged | ||
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| /** The wrapped mutable `Array` that backs this `ArraySeq`. Any changes to this array will break | ||
| * the expected immutability. */ | ||
| def unsafeArray: Array[A @uncheckedVariance] | ||
| // uncheckedVariance should be safe: Array[A] for reference types A is covariant at the JVM level. Array[A] for |
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So much for my assumptions...
lrytz
approved these changes
May 30, 2018
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ArraySeq can be boxed or unboxed for primitives and could have been
created with an
Array[AnyRef]for arbitrary reference types, so wecannot guarantee any specific element type for the backing array.
Fixes scala/bug#10851