API Cleanup - Width

Add simple documentation
trait Width -> abstract class Width
case class UnknownWidth -> case object UnknownWidth

2 files changed, 3 insertions, 3 deletions

diff --git a/src/main/scala/firrtl/passes/Checks.scala b/src/main/scala/firrtl/passes/Checks.scala
index 0857382b..a88ad051 100644
--- a/src/main/scala/firrtl/passes/Checks.scala
+++ b/src/main/scala/firrtl/passes/Checks.scala
@@ -290,8 +290,8 @@ object CheckTypes extends Pass with LazyLogging {
    class ValidIfPassiveTypes(info:Info) extends PassException(s"${info}: [module ${mname}]  Must validif a passive type.")
    class ValidIfCondUInt(info:Info) extends PassException(s"${info}: [module ${mname}]  A validif condition must be of type UInt.")
    //;---------------- Helper Functions --------------
-   def ut () : UIntType = UIntType(UnknownWidth())
-   def st () : SIntType = SIntType(UnknownWidth())
+   def ut () : UIntType = UIntType(UnknownWidth)
+   def st () : SIntType = SIntType(UnknownWidth)
    
    def check_types_primop (e:DoPrim, errors:Errors, info:Info) : Unit = {
       def all_same_type (ls:Seq[Expression]) : Unit = {
diff --git a/src/main/scala/firrtl/passes/Passes.scala b/src/main/scala/firrtl/passes/Passes.scala
index 0243c6cd..42b51268 100644
--- a/src/main/scala/firrtl/passes/Passes.scala
+++ b/src/main/scala/firrtl/passes/Passes.scala
@@ -159,7 +159,7 @@ object InferTypes extends Pass {
    }
    def remove_unknowns_w (w:Width)(implicit namespace: Namespace):Width = {
       w match {
-         case w:UnknownWidth => VarWidth(namespace.newName("w"))
+         case UnknownWidth => VarWidth(namespace.newName("w"))
          case w => w
       }
    }