diff options
Diffstat (limited to 'src/main/scala/firrtl/graph')
| -rw-r--r-- | src/main/scala/firrtl/graph/DiGraph.scala | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/main/scala/firrtl/graph/DiGraph.scala b/src/main/scala/firrtl/graph/DiGraph.scala index 450ec4ff..135603ff 100644 --- a/src/main/scala/firrtl/graph/DiGraph.scala +++ b/src/main/scala/firrtl/graph/DiGraph.scala @@ -7,7 +7,7 @@ import scala.collection.mutable import scala.collection.mutable.{LinkedHashSet, LinkedHashMap} /** An exception that is raised when an assumed DAG has a cycle */ -class CyclicException extends Exception("No valid linearization for cyclic graph") +class CyclicException(val node: Any) extends Exception(s"No valid linearization for cyclic graph, found at $node") /** An exception that is raised when attempting to find an unreachable node */ class PathNotFoundException extends Exception("Unreachable node") @@ -79,7 +79,7 @@ class DiGraph[T] private[graph] (private[graph] val edges: LinkedHashMap[T, Link def visit(n: T): Unit = { if (tempMarked.contains(n)) { - throw new CyclicException + throw new CyclicException(n) } if (unmarked.contains(n)) { tempMarked += n |