dpar.rep changed to parametric definition

src/Dirac/Dirac.jl

@@ -19,12 +19,20 @@ using ..Fields
 using ..YM
 using ..Spinors
 
-struct DiracParam{T}
-    rep
+struct DiracParam{T,R}
     m0::T
     csw::T
     th::NTuple{4,Complex{T}}
     ct::T
+
+
+    function DiracParam{T}(::Type{R},m0,csw,th,ct) where {T,R} 
+        return new{T,R}(m0,csw,th,ct)
+    end
+
+    function DiracParam{T}(m0,csw,th,ct) where {T} 
+        return new{T,SU3fund}(m0,csw,th,ct)
+    end
 end