Merge pull request #2386 from AayushSabharwal/as/all-symbols

feat: add new all-symbols methods from SII

Author: ChrisRackauckas

Project.toml

@@ -98,7 +98,7 @@ SimpleNonlinearSolve = "0.1.0, 1"
 SparseArrays = "1"
 SpecialFunctions = "0.7, 0.8, 0.9, 0.10, 1.0, 2"
 StaticArrays = "0.10, 0.11, 0.12, 1.0"
-SymbolicIndexingInterface = "0.3"
+SymbolicIndexingInterface = "0.3.1"
 SymbolicUtils = "1.0"
 Symbolics = "5.7"
 URIs = "1"

src/systems/abstractsystem.jl

@@ -286,6 +286,20 @@ SymbolicIndexingInterface.is_time_dependent(::AbstractTimeIndependentSystem) = f
 
 SymbolicIndexingInterface.constant_structure(::AbstractSystem) = true
 
+function SymbolicIndexingInterface.all_variable_symbols(sys::AbstractSystem)
+    syms = variable_symbols(sys)
+    obs = getproperty.(observed(sys), :lhs)
+    return isempty(obs) ? syms : vcat(syms, obs)
+end
+
+function SymbolicIndexingInterface.all_symbols(sys::AbstractSystem)
+    syms = all_variable_symbols(sys)
+    for other in (parameter_symbols(sys), independent_variable_symbols(sys))
+        isempty(other) || (syms = vcat(syms, other))
+    end
+    return syms
+end
+
 iscomplete(sys::AbstractSystem) = isdefined(sys, :complete) && getfield(sys, :complete)
 
 """

test/distributed.jl

@@ -33,4 +33,4 @@ end
 solve_lorenz(ode_prob)
 
 future = @spawn solve_lorenz(ode_prob)
-@test_broken fetch(future)
+fetch(future)

test/inversemodel.jl

@@ -2,6 +2,7 @@ using ModelingToolkit
 using ModelingToolkitStandardLibrary
 using ModelingToolkitStandardLibrary.Blocks
 using OrdinaryDiffEq
+using SymbolicIndexingInterface
 using Test
 using ControlSystemsMTK: tf, ss, get_named_sensitivity, get_named_comp_sensitivity
 
@@ -144,7 +145,7 @@ sol = solve(prob, Rodas5P())
 # plot(sol, idxs=[model.tank.xc, model.tank.xT, model.controller.ctr_output.u], layout=3, sp=[1 2 3])
 # hline!([prob[cm.ref.k]], label="ref", sp=1)
 
-@test sol(tspan[2], idxs = cm.tank.xc)≈prob[cm.ref.k] atol=1e-2 # Test that the inverse model led to the correct reference
+@test sol(tspan[2], idxs = cm.tank.xc)≈ getp(prob, cm.ref.k)(prob) atol=1e-2 # Test that the inverse model led to the correct reference
 
 Sf, simplified_sys = Blocks.get_sensitivity_function(model, :y) # This should work without providing an operating opint containing a dummy derivative
 x, p = ModelingToolkit.get_u0_p(simplified_sys, op)