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Improve performance of FunctionOf.unapply #18291

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Merged
merged 1 commit into from
Jul 25, 2023
Merged

Improve performance of FunctionOf.unapply #18291

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6 changes: 3 additions & 3 deletions compiler/src/dotty/tools/dotc/core/Definitions.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -1119,10 +1119,10 @@ class Definitions {
ft.dealias match
case ErasedFunctionOf(mt) =>
Some(mt.paramInfos, mt.resType, mt.isContextualMethod)
case _ =>
val tsym = ft.dealias.typeSymbol
case dft =>
val tsym = dft.typeSymbol
if isFunctionSymbol(tsym) && ft.isRef(tsym) then
val targs = ft.dealias.argInfos
val targs = dft.argInfos
if (targs.isEmpty) None
else Some(targs.init, targs.last, tsym.name.isContextFunction)
else None
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