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Use BitSet for boolean TASTy attributes #19092

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Merged
merged 3 commits into from
Nov 27, 2023
Merged

Use BitSet for boolean TASTy attributes #19092

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96bea13
Use `BitSet` for boolean TASTy attributes
nicolasstucki Nov 27, 2023
fafa45b
Hide TASTy tags encoding from outside `tasty` package
nicolasstucki Nov 27, 2023
476a617
Cache `Attributes.empty`
nicolasstucki Nov 27, 2023
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Hide TASTy tags encoding from outside tasty package
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@nicolasstucki
nicolasstucki committed Nov 27, 2023
commit fafa45ba9fc921f227ac77873c629111ecaeac30
16 changes: 7 additions & 9 deletions compiler/src/dotty/tools/dotc/core/tasty/Attributes.scala
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Original file line number Diff line number Diff line change
@@ -1,16 +1,14 @@
package dotty.tools.dotc.core.tasty

import dotty.tools.tasty.TastyFormat
import dotty.tools.tasty.TastyFormat.*

import scala.collection.immutable.BitSet

class Attributes(
val booleanTags: BitSet,
class Attributes private[tasty](
private[tasty] val booleanTags: BitSet,
) {
def scala2StandardLibrary: Boolean =
booleanTags.contains(TastyFormat.SCALA2STANDARDLIBRARYattr)
def explicitNulls: Boolean =
booleanTags.contains(TastyFormat.EXPLICITNULLSattr)
def scala2StandardLibrary: Boolean = booleanTags(SCALA2STANDARDLIBRARYattr)
def explicitNulls: Boolean = booleanTags(EXPLICITNULLSattr)
}

object Attributes:
Expand All @@ -19,8 +17,8 @@ object Attributes:
explicitNulls: Boolean,
): Attributes =
val booleanTags = BitSet.newBuilder
if scala2StandardLibrary then booleanTags += TastyFormat.SCALA2STANDARDLIBRARYattr
if explicitNulls then booleanTags += TastyFormat.EXPLICITNULLSattr
if scala2StandardLibrary then booleanTags += SCALA2STANDARDLIBRARYattr
if explicitNulls then booleanTags += EXPLICITNULLSattr
new Attributes(booleanTags.result())
end apply

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