refactor: add edge case for parameter_index

SciML · Nov 28, 2023 · f245c52 · f245c52
1 parent ea7bf1a
commit f245c52
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/src/systems/abstractsystem.jl b/src/systems/abstractsystem.jl
@@ -233,6 +233,9 @@ function SymbolicIndexingInterface.is_parameter(sys::AbstractSystem, sym::Symbol
 end
 
 function SymbolicIndexingInterface.parameter_index(sys::AbstractSystem, sym)
+    if unwrap(sym) isa Int
+        return unwrap(sym)
+    end
     idx = findfirst(isequal(sym), parameters(sys))
     if idx === nothing && hasname(sym)
         idx = parameter_index(sys, getname(sym))