Specialize symbolic Struct

Author: YingboMa

src/systems/index_cache.jl

@@ -3,6 +3,11 @@ struct BufferTemplate
     length::Int
 end
 
+function BufferTemplate(s::Type{<:Symbolics.Struct}, length::Int)
+    T = Symbolics.juliatype(s)
+    BufferTemplate(T, length)
+end
+
 const DEPENDENT_PORTION = :dependent
 const NONNUMERIC_PORTION = :nonnumeric
 

src/systems/parameter_buffer.jl

@@ -1,3 +1,5 @@
+symconvert(::Type{Symbolics.Struct{T}}, x) where {T} = convert(T, x)
+symconvert(::Type{T}, x) where {T} = convert(T, x)
 struct MTKParameters{T, D, C, E, N, F, G}
     tunable::T
     discrete::D
@@ -81,7 +83,7 @@ function MTKParameters(sys::AbstractSystem, p; tofloat = false, use_union = fals
     for (sym, val) in p
         sym = unwrap(sym)
         ctype = concrete_symtype(sym)
-        val = convert(ctype, fixpoint_sub(val, p))
+        val = symconvert(ctype, fixpoint_sub(val, p))
         done = set_value(sym, val)
         if !done && Symbolics.isarraysymbolic(sym)
             done = all(set_value.(collect(sym), val))