From 2d7bf7a5fdb5ee722009d4816bb8aa355ead59fc Mon Sep 17 00:00:00 2001
From: Andrew Waterman
Date: Fri, 15 Jan 2016 14:23:28 -0800
Subject: flatten should return Seq[Bits], not Seq[UInt]

Calling toBits inside of flatten makes asInput/asOutput/asDirectionless fail
on SInts.  Also, the abstract type Data was already defining it to return
Seq[Bits], so this change didn't really change the API.
---
 src/main/scala/Chisel/Bits.scala | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

(limited to 'src/main/scala/Chisel/Bits.scala')

diff --git a/src/main/scala/Chisel/Bits.scala b/src/main/scala/Chisel/Bits.scala
index e001f864..7505c102 100644
--- a/src/main/scala/Chisel/Bits.scala
+++ b/src/main/scala/Chisel/Bits.scala
@@ -10,9 +10,7 @@ import firrtl.PrimOp._
 /** Element is a leaf data type: it cannot contain other Data objects. Example
   * uses are for representing primitive data types, like integers and bits.
   */
-abstract class Element(dirArg: Direction, val width: Width) extends Data(dirArg) {
-  private[Chisel] def flatten: IndexedSeq[UInt] = IndexedSeq(toBits)
-}
+abstract class Element(dirArg: Direction, val width: Width) extends Data(dirArg)
 
 /** A data type for values represented by a single bitvector. Provides basic
   * bitwise operations.
@@ -25,6 +23,8 @@ sealed abstract class Bits(dirArg: Direction, width: Width, override val litArg:
 
   private[Chisel] def fromInt(x: BigInt): this.type
 
+  private[Chisel] def flatten: IndexedSeq[Bits] = IndexedSeq(this)
+
   def cloneType: this.type = cloneTypeWidth(width)
 
   override def <> (that: Data): Unit = this := that
-- 
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