Remove type parameterisation of SignalMap.

[matthijs/master-project/cλash.git] / VHDLTypes.hs

diff --git a/VHDLTypes.hs b/VHDLTypes.hs
index 9ae197c4e99ea9bfa80bb858227396c3522cd810..26ed823d904f35dd6653513f84cf2788e81ddac2 100644 (file)
--- a/VHDLTypes.hs
+++ b/VHDLTypes.hs
@@ -6,8 +6,11 @@ module VHDLTypes where
 import qualified ForSyDe.Backend.VHDL.AST as AST
 
 import FlattenTypes
+import HsValueMap
 
-type VHDLSignalMap = SignalMap (AST.VHDLId, AST.TypeMark)
+-- | A mapping from a haskell structure to the corresponding VHDL port
+--   signature, or Nothing for values that do not translate to a port.
+type VHDLSignalMap = HsValueMap (Maybe (AST.VHDLId, AST.TypeMark))
 
 -- A description of a VHDL entity. Contains both the entity itself as well as
 -- info on how to map a haskell value (argument / result) on to the entity's