X-Git-Url: https://git.stderr.nl/gitweb?a=blobdiff_plain;f=VHDLTypes.hs;h=33010822b9ace9ec74e0002e0ba015fd2643254b;hb=6808406c77307ba110ec5fc7e03fa7359fdf4646;hp=54baf47ef4ba31ec20e3f73378afbfec19a779ea;hpb=e523563c7a401c6190e803c21ff6609e3e675b2c;p=matthijs%2Fmaster-project%2Fc%CE%BBash.git

diff --git a/VHDLTypes.hs b/VHDLTypes.hs
index 54baf47..3301082 100644
--- a/VHDLTypes.hs
+++ b/VHDLTypes.hs
@@ -20,14 +20,15 @@ import qualified ForSyDe.Backend.VHDL.AST as AST
 import FlattenTypes
 import HsValueMap
 
+type VHDLSignalMapElement = (Maybe (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))
+type VHDLSignalMap = HsValueMap VHDLSignalMapElement
 
 -- 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
 -- ports.
-data Entity = Entity {
+data Entity = Entity { 
   ent_id     :: AST.VHDLId,           -- The id of the entity
   ent_args   :: [VHDLSignalMap],      -- A mapping of each function argument to port names
   ent_res    :: VHDLSignalMap         -- A mapping of the function result to port names
@@ -40,8 +41,7 @@ instance Eq OrdType where
 instance Ord OrdType where
   compare (OrdType a) (OrdType b) = Type.tcCmpType a b
 
--- A map of a Core type to the corresponding type name (and optionally, it's
--- declaration for non-primitive types).
+-- A map of a Core type to the corresponding type name
 type TypeMap = Map.Map OrdType (AST.VHDLId, AST.TypeDec)
 
 -- A map of a Haskell function to a hardware signature
@@ -58,6 +58,10 @@ data VHDLSession = VHDLSession {
 -- Derive accessors
 $( Data.Accessor.Template.deriveAccessors ''VHDLSession )
 
+-- | The state containing a VHDL Session
 type VHDLState = State.State VHDLSession
 
+-- | A substate containing just the types
+type TypeState = State.State TypeMap
+
 -- vim: set ts=8 sw=2 sts=2 expandtab: