Rename funciton with pascal case and move to __FCMBase.lua

Author: rpatters1

src/library/mixin.lua

@@ -760,10 +760,6 @@ function mixin_private.apply_mixin_foundation(object)
             return mixin_private.create_fluid_proxy(prop)
         end
 
-        if not prop and k == "fallback_call" then
-            return mixin_public.fallback_call
-        end
-
         return prop
     end
 
@@ -1053,24 +1049,4 @@ function mixin_public.eachentry(region, layer)
     end
 end
 
---[[
-% fallback_call
-
-Checks the existence of a class method before calling it. If the method exists, it returns
-as expected. If the method does not exist, it returns the fallback_value. This function allows
-a script to call a method that does not exist in earlier versions of Lua (specifically, in JW Lua.)
-
-@ instance (userdata) The class instance on which to call the method.
-@ method_name (string) The name of the method to return.
-@ fallback_value (any) The value that will be returned if the method does not exist. If this value is `nil`, the function returns `self`.
-@ additional_parameters (...) The additional parameters of the method.
-]]
-function mixin_public.fallback_call(instance, method_name, fallback_value, ...)
-    if not instance[method_name] then
-        return fallback_value or instance
-    end
-    
-    return instance[method_name](instance, ...)
-end
-
 return mixin

src/mixin/__FCMBase.lua

@@ -0,0 +1,37 @@
+--  Author: Robert Patterson
+--  Date: January 20, 2024
+--[[
+$module __FCMBase
+
+## Summary of Modifications
+- Add method _FallbackCall to gracefully allow skipping missing methods in earlier Lua versions
+]] --
+local mixin = require("library.mixin")
+local mixin_helper = require("library.mixin_helper")
+
+local class = {Methods = {}}
+local methods = class.Methods
+
+
+--[[
+% _FallbackCall
+
+Checks the existence of a class method before calling it. If the method exists, it returns
+as expected. If the method does not exist, it returns the fallback_value. This function allows
+a script to call a method that does not exist in earlier versions of Lua (specifically, in JW Lua)
+and get a default return value in that case.
+
+@ self (userdata) The class instance on which to call the method.
+@ method_name (string) The name of the method to return.
+@ fallback_value (any) The value that will be returned if the method does not exist. If this value is `nil`, the function returns `self`.
+@ additional_parameters (...) The additional parameters of the method.
+]]
+function methods:_FallbackCall(method_name, fallback_value, ...)
+    if not self[method_name] then
+        return fallback_value or self
+    end
+    
+    return self[method_name](self, ...)
+end
+
+return class