Merge pull request #3984 from SciML/bgc/gui_metadata_fix

gui_metadata fix

Author: AayushSabharwal

src/systems/system.jl

@@ -773,6 +773,7 @@ function flatten(sys::System, noeqs = false)
         # later removed by the user will be re-added. Right now, we just want to
         # retain `defaults(sys)` as-is.
         discover_from_metadata = false, metadata = get_metadata(sys),
+        gui_metadata = get_gui_metadata(sys),
         description = description(sys), name = nameof(sys))
 end
 

src/systems/systems.jl

@@ -165,7 +165,8 @@ function __mtkcompile(sys::AbstractSystem; simplify = false,
             assertions = assertions(sys),
             guesses = guesses(sys), initialization_eqs = initialization_equations(sys),
             continuous_events = continuous_events(sys),
-            discrete_events = discrete_events(sys))
+            discrete_events = discrete_events(sys),
+            gui_metadata = get_gui_metadata(sys))
         @set! ssys.parameter_dependencies = get_parameter_dependencies(sys)
         return ssys
     end

test/components.jl

@@ -46,6 +46,10 @@ include("common/rc_model.jl")
     @test get_component_type(pin).name == :Pin
     @test get_component_type(rc_model.resistor).name == :Resistor
 
+    @mtkcompile rc_model_compile = RCModel()
+    @test get_component_type(rc_model).name == :RCModel
+    @test get_component_type(rc_model_compile).name == :RCModel
+
     completed_rc_model = complete(rc_model)
     @test isequal(completed_rc_model.resistor.n.i, resistor.n.i)
     @test ModelingToolkit.n_expanded_connection_equations(capacitor) == 2
@@ -352,7 +356,8 @@ end
     @named comp1 = System(Equation[], t; systems = [input])
     @named output = RealOutput()
     @named comp2 = System(Equation[], t; systems = [output])
-    @named sys = System([connect(comp2.output.u, comp1.input.u)], t; systems = [comp1, comp2])
+    @named sys = System([connect(comp2.output.u, comp1.input.u)], t; systems = [
+        comp1, comp2])
     eq = only(equations(expand_connections(sys)))
     # as opposed to `output.u ~ input.u`
     @test isequal(eq, comp1.input.u ~ comp2.output.u)