Describe the bug
Have an External Function in your Ink with a parameter that is populated with a blank value eg. "", you get the following error on line 1411 in ink_story.gd (Godot4 branch) when you handle the External Function.
while i < number_of_arguments:
var popped_obj = InkUtils.as_or_null(self.state.pop_evaluation_stack(), "Value")
var value_obj = popped_obj.value_object
arguments.append(value_obj)
i += 1
The error in this case is: Invalid get index 'value_object' (on base: 'Nil').
popped_obj renders as Void when I do a print on it.
To Reproduce
Add an External Function in Ink with a parameter
In your Ink code, call the External Function and populate the parameter as ""
Bind/call the External Function via InkGD. You'll get the error documented above.
Expected behavior
Null/blank values passed into External Functions are considered acceptable values and do not throw errors. In my specific scenario, I have a random variable that populates 25% of the time. In the scenarios when it is blank, I'd like that blank result to be passed via External Function the same way as any other parameter. I can technically workaround this with a specific nuller External Function, but that's not my preference.
Describe the bug Have an External Function in your Ink with a parameter that is populated with a blank value eg. "", you get the following error on line 1411 in ink_story.gd (Godot4 branch) when you handle the External Function.
The error in this case is: Invalid get index 'value_object' (on base: 'Nil').
popped_obj renders as Void when I do a print on it.
To Reproduce
Expected behavior Null/blank values passed into External Functions are considered acceptable values and do not throw errors. In my specific scenario, I have a random variable that populates 25% of the time. In the scenarios when it is blank, I'd like that blank result to be passed via External Function the same way as any other parameter. I can technically workaround this with a specific nuller External Function, but that's not my preference.
Ink files ink_story.gd
Environment: