From 920f6dc168d8e486733666368c7e363065b685ee Mon Sep 17 00:00:00 2001
From: Jim Lawson
Date: Fri, 2 Sep 2016 12:53:08 -0700
Subject: Add direction-only (no width) UInt factory method.

---
 chiselFrontend/src/main/scala/chisel3/core/Bits.scala | 9 +++++++++
 1 file changed, 9 insertions(+)

(limited to 'chiselFrontend')

diff --git a/chiselFrontend/src/main/scala/chisel3/core/Bits.scala b/chiselFrontend/src/main/scala/chisel3/core/Bits.scala
index 8b3723f5..611a49be 100644
--- a/chiselFrontend/src/main/scala/chisel3/core/Bits.scala
+++ b/chiselFrontend/src/main/scala/chisel3/core/Bits.scala
@@ -558,6 +558,15 @@ private[core] sealed trait UIntFactory {
       case Direction.Unspecified => result
     }
   }
+  /** Create a UInt with a specified direction, but unspecified width - compatibility with Chisel2. */
+  def apply(dir: Direction): UInt = {
+    val result = apply(Width())
+    dir match {
+      case Direction.Input => Input(result)
+      case Direction.Output => Output(result)
+      case Direction.Unspecified => result
+    }
+  }
 
   private def parse(n: String) = {
     val (base, num) = n.splitAt(1)
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