diff options
Diffstat (limited to 'src/dotty/tools/dotc/typer/Implicits.scala')
| -rw-r--r-- | src/dotty/tools/dotc/typer/Implicits.scala | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/src/dotty/tools/dotc/typer/Implicits.scala b/src/dotty/tools/dotc/typer/Implicits.scala index 0a3307140..2a1c18f7d 100644 --- a/src/dotty/tools/dotc/typer/Implicits.scala +++ b/src/dotty/tools/dotc/typer/Implicits.scala @@ -801,14 +801,15 @@ class SearchHistory(val searchDepth: Int, val seen: Map[ClassSymbol, Int]) { def updateMap(csyms: List[ClassSymbol], seen: Map[ClassSymbol, Int]): SearchHistory = csyms match { case csym :: csyms1 => seen get csym match { + // proto complexity is >= than the last time it was seen → diverge case Some(prevSize) if size >= prevSize => this case _ => updateMap(csyms1, seen.updated(csym, size)) } - case nil => - if (csyms.isEmpty) this - else new SearchHistory(searchDepth + 1, seen) + case _ => + new SearchHistory(searchDepth + 1, seen) } - updateMap(proto.classSymbols, seen) + if (proto.classSymbols.isEmpty) this + else updateMap(proto.classSymbols, seen) } } } |