unknown_states

Author: xtalax

src/SymbolicIndexingInterface.jl

@@ -8,6 +8,6 @@ include("symbolcache.jl")
 export independent_variables, is_indep_sym, states, state_sym_to_index, is_state_sym,
        parameters, param_sym_to_index, is_param_sym, observed, observed_sym_to_index,
        is_observed_sym, get_state_dependencies, get_observed_dependencies,
-       get_deps_of_observed, SymbolCache
+       get_deps_of_observed, SymbolCache, unknown_states
 
 end

src/interface.jl

@@ -31,13 +31,23 @@ states(::Any) = []
 """
 $(TYPEDSIGNATURES)
 
+Get an iterable over the unknown states for the given system. Default to an empty vector.
+"""
+function unknown_states end
+
+unknown_states(::Any) = []
+
+"""
+$(TYPEDSIGNATURES)
+
 Find the index of the given sym in the given system. Default to the index of the first
 symbol in the iterable returned by `states` which matches the given `sym`. Return
 `nothing` if the given `sym` does not match.
 """
 function state_sym_to_index end
 
 function state_sym_to_index(store, sym)
+    @show "why"
     findfirst(isequal(Symbol(sym)), Symbol.(states(store)))
 end