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Router: handle Lit.Unit and empty ArgClause #4556

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Nov 18, 2024
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Router: handle Lit.Unit and empty ArgClause #4556

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8 changes: 7 additions & 1 deletion scalafmt-core/shared/src/main/scala/org/scalafmt/internal/Router.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -950,10 +950,16 @@ class Router(formatOps: FormatOps) {
)
}

case FT(T.LeftParen(), T.RightParen(), _) =>
case FT(_: T.LeftParen, _: T.RightParen, _) =>
val noNL = style.newlines.sourceIgnored || noBreak()
Seq(Split(NoSplit.orNL(noNL), 0))

case FT(_: T.LeftParen, _: T.Comment, _) if (leftOwner match {
case _: Lit.Unit => true
case t: Member.ArgClause => t.values.isEmpty
case _ => false
}) && !hasBreakBeforeNonComment(ft) => Seq(Split(Space, 0))

case FT(open @ LeftParenOrBracket(), right, _) if {
if (isArgClauseSite(leftOwner)) style.binPack.callSiteFor(open) ==
BinPack.Site.Never
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2 changes: 1 addition & 1 deletion scalafmt-tests/shared/src/test/scala/org/scalafmt/FormatTests.scala
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Expand Up @@ -137,7 +137,7 @@ class FormatTests extends FunSuite with CanRunTests with FormatAssertions {
val explored = Debug.explored.get()
logger.debug(s"Total explored: $explored")
if (!onlyUnit && !onlyManual)
assertEquals(explored, 1082952, "total explored")
assertEquals(explored, 1082944, "total explored")
val results = debugResults.result()
// TODO(olafur) don't block printing out test results.
// I don't want to deal with scalaz's Tasks :'(
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