Use globalref for component type

Author: YingboMa

src/systems/abstractsystem.jl

@@ -1,7 +1,8 @@
 const SYSTEM_COUNT = Threads.Atomic{UInt}(0)
 
+get_component_type(x::AbstractSystem) = get_gui_metadata(x).type
 struct GUIMetadata
-    type::Symbol
+    type::GlobalRef
     layout::Any
 end
 
@@ -1137,7 +1138,7 @@ function component_post_processing(expr, isconnector)
                 if $isconnector
                     $Setfield.@set!(res.connector_type=$connector_type(res))
                 end
-                $Setfield.@set!(res.gui_metadata=$GUIMetadata(name))
+                $Setfield.@set!(res.gui_metadata=$GUIMetadata($GlobalRef(@__MODULE__, name)))
             else
                 res
             end

test/components.jl

@@ -1,6 +1,6 @@
 using Test
 using ModelingToolkit, OrdinaryDiffEq
-using ModelingToolkit: get_gui_metadata
+using ModelingToolkit: get_component_type
 using ModelingToolkit.BipartiteGraphs
 using ModelingToolkit.StructuralTransformations
 include("../examples/rc_model.jl")
@@ -35,8 +35,8 @@ function check_rc_sol(sol)
 end
 
 @named pin = Pin()
-@test get_gui_metadata(pin).type == :Pin
-@test get_gui_metadata(rc_model.resistor).type == :Resistor
+@test get_component_type(pin).name == :Pin
+@test get_component_type(rc_model.resistor).name == :Resistor
 
 completed_rc_model = complete(rc_model)
 @test isequal(completed_rc_model.resistor.n.i, resistor.n.i)