diff options
Diffstat (limited to 'src/main')
| -rw-r--r-- | src/main/scala/firrtl/passes/wiring/WiringTransform.scala | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/src/main/scala/firrtl/passes/wiring/WiringTransform.scala b/src/main/scala/firrtl/passes/wiring/WiringTransform.scala index c42d1f8b..31030375 100644 --- a/src/main/scala/firrtl/passes/wiring/WiringTransform.scala +++ b/src/main/scala/firrtl/passes/wiring/WiringTransform.scala @@ -54,11 +54,17 @@ class WiringTransform extends Transform { case p => val sinks = mutable.HashMap[String, Seq[Named]]() val sources = mutable.HashMap[String, ComponentName]() - p.foreach { + val errors = p.flatMap { case SinkAnnotation(m, pin) => sinks(pin) = sinks.getOrElse(pin, Seq.empty) :+ m + None case SourceAnnotation(c, pin) => + val res = if (sources.contains(pin)) Some(pin) else None sources(pin) = c + res + } + if (errors.nonEmpty) { + throw WiringException(s"Multiple sources specified for wiring pin(s): " + errors.distinct.mkString(", ")) } (sources.size, sinks.size) match { case (0, p) => state |