Compare ⋅ chwthewke/auto-diff

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Showing 1 of 3 files from the diff.

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...ain/scala/fr/thomasdufour/autodiff/DiffMatch.scala changed.

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version.sbt has changed.

...cala/fr/thomasdufour/autodiff/InAnyOrderSpec.scala has changed.

@@ -3,6 +3,7 @@

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import cats.data.Ior
import cats.data.NonEmptyList
import cats.syntax.option._
import scala.annotation.tailrec

case class DiffMatch[A]( difference: Option[Difference.Unordered], matches: List[( A, A )] )


@@ -32,31 +33,33 @@

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  )( implicit D: Diff[A], H: Hint[A] ): ( List[A], List[A], List[( A, A )], List[Difference] ) = {
    right.foldRight( ( left.toList, List.empty[A], List.empty[( A, A )], List.empty[Difference] ) ) {
      case ( elem, ( remaining, unmatched, matches, mismatches ) ) =>
        def remainingAfter( matched: A ): List[A] = remaining.filterNot( matched == _ )
        def remainingAfter( matchedIx: Int ): List[A] = remaining.take( matchedIx ) ++ remaining.drop( matchedIx + 1 )

        def explainMismatch( a: A, d: Difference ): Difference = Difference.Tagged( s"at ${H.show( a )}", d )

        def search( prevMis: Option[( A, Difference )], excessMis: Boolean )(
            cands: List[A]
        ): Either[Option[( A, Difference )], A] = cands match {
          case Nil => Left( prevMis.map { case ( a, d ) => ( a, explainMismatch( a, d ) ) } )
          case cand :: more if H( cand, elem ) =>
        @tailrec
        def search( prevMis: Option[( A, Int, Difference )], excessMis: Boolean )(
            cands: List[( A, Int )]
        ): Either[Option[( Int, Difference )], ( A, Int )] = cands match {
          case Nil => Left( prevMis.map { case ( a, ix, d ) => ( ix, explainMismatch( a, d ) ) } )
          case ( cand, ix ) :: more if H( cand, elem ) =>
            D( cand, elem ) match {
              case None => Right( cand )
              case None => Right( ( cand, ix ) )
              case mis @ Some( _ ) =>
                val ( p, e ) =
                  if (excessMis || prevMis.nonEmpty || H.isDefault) ( none, true )
                  else ( mis.map( cand -> _ ), false )
                  else ( mis.map( ( cand, ix, _ ) ), false )
                search( p, e )( more )
            }
          case _ :: more => search( prevMis, excessMis )( more )
        }

        search( none, false )( remaining ) match {
          case Right( newMatch ) => ( remainingAfter( newMatch ), unmatched, ( newMatch, elem ) :: matches, mismatches )
          case Left( None )      => ( remaining, elem :: unmatched, matches, mismatches )
          case Left( Some( ( mismatched, mismatch ) ) ) =>
            ( remainingAfter( mismatched ), unmatched, matches, mismatch :: mismatches )
        search( none, excessMis = false )( remaining.zipWithIndex ) match {
          case Right( ( newMatch, ix ) ) =>
            ( remainingAfter( ix ), unmatched, ( newMatch, elem ) :: matches, mismatches )
          case Left( None ) => ( remaining, elem :: unmatched, matches, mismatches )
          case Left( Some( ( ix, mismatch ) ) ) =>
            ( remainingAfter( ix ), unmatched, matches, mismatch :: mismatches )
        }

    }

Everything is accounted for!

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Lines, not adjusted in diff, that have changed coverage data.

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77.87% 100.00% ø

fix: repetitions in the right arg caused errors in Diff.inAnyOrder

chwthewke

a2cb4ba

CI Passed

Hiding 1 contexual commits

77.87% ø ø

other: set version to 0.5.0

chwthewke

f4b0d9b

CI Passed

Files		•	•	•	Coverage
auto-diff-core/src/main/scala/fr/thomasdufour/autodiff	ø	ø	ø	ø	76.28%
auto-diff-generic/src/main/scala/fr/thomasdufour/autodiff/derived	ø	ø	ø	ø	84.38%
...f-enumeratum/src/main/scala/fr/thomasdufour/autodiff/extra/enumeratum.scala	ø	ø	ø	ø	100.00%
.../main/scala/fr/thomasdufour/autodiff/extra/scalatest/AutodiffMatchers.scala	ø	ø	ø	ø	100.00%
Project Totals (22 files)	253	197	0	56	77.87%

32	33		)( implicit D: Diff[A], H: Hint[A] ): ( List[A], List[A], List[( A, A )], List[Difference] ) = {
33	34		right.foldRight( ( left.toList, List.empty[A], List.empty[( A, A )], List.empty[Difference] ) ) {
34	35		case ( elem, ( remaining, unmatched, matches, mismatches ) ) =>
35		-	def remainingAfter( matched: A ): List[A] = remaining.filterNot( matched == _ )
	36	+	def remainingAfter( matchedIx: Int ): List[A] = remaining.take( matchedIx ) ++ remaining.drop( matchedIx + 1 )
36	37
37	38		def explainMismatch( a: A, d: Difference ): Difference = Difference.Tagged( s"at ${H.show( a )}", d )
38	39
39		-	def search( prevMis: Option[( A, Difference )], excessMis: Boolean )(
40		-	cands: List[A]
41		-	): Either[Option[( A, Difference )], A] = cands match {
42		-	case Nil => Left( prevMis.map { case ( a, d ) => ( a, explainMismatch( a, d ) ) } )
43		-	case cand :: more if H( cand, elem ) =>
	40	+	@tailrec
	41	+	def search( prevMis: Option[( A, Int, Difference )], excessMis: Boolean )(
	42	+	cands: List[( A, Int )]
	43	+	): Either[Option[( Int, Difference )], ( A, Int )] = cands match {
	44	+	case Nil => Left( prevMis.map { case ( a, ix, d ) => ( ix, explainMismatch( a, d ) ) } )
	45	+	case ( cand, ix ) :: more if H( cand, elem ) =>
44	46		D( cand, elem ) match {
45		-	case None => Right( cand )
	47	+	case None => Right( ( cand, ix ) )
46	48		case mis @ Some( _ ) =>
47	49		val ( p, e ) =
48	50		if (excessMis \|\| prevMis.nonEmpty \|\| H.isDefault) ( none, true )
49		-	else ( mis.map( cand -> _ ), false )
	51	+	else ( mis.map( ( cand, ix, _ ) ), false )
50	52		search( p, e )( more )
51	53		}
52	54		case _ :: more => search( prevMis, excessMis )( more )
53	55		}
54	56
55		-	search( none, false )( remaining ) match {
56		-	case Right( newMatch ) => ( remainingAfter( newMatch ), unmatched, ( newMatch, elem ) :: matches, mismatches )
57		-	case Left( None ) => ( remaining, elem :: unmatched, matches, mismatches )
58		-	case Left( Some( ( mismatched, mismatch ) ) ) =>
59		-	( remainingAfter( mismatched ), unmatched, matches, mismatch :: mismatches )
	57	+	search( none, excessMis = false )( remaining.zipWithIndex ) match {
	58	+	case Right( ( newMatch, ix ) ) =>
	59	+	( remainingAfter( ix ), unmatched, ( newMatch, elem ) :: matches, mismatches )
	60	+	case Left( None ) => ( remaining, elem :: unmatched, matches, mismatches )
	61	+	case Left( Some( ( ix, mismatch ) ) ) =>
	62	+	( remainingAfter( ix ), unmatched, matches, mismatch :: mismatches )
60	63		}
61	64
62	65		}

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3	3		import cats.data.Ior
4	4		import cats.data.NonEmptyList
5	5		import cats.syntax.option._
	6	+	import scala.annotation.tailrec
6	7
7	8		case class DiffMatch[A]( difference: Option[Difference.Unordered], matches: List[( A, A )] )
8	9

Compare f4b0d9b ... +1 ... a2cb4ba

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