Godot Version
v4.4
Question
Does anyone know why my @onready variables here are not type-safe? I specify a node type after each colon, yet the line numbers are still greyed out. GDScript is not happy for some reason.
Well, because it’s not type safe. Node.get_node() returns a Node and you are telling the gdscript compiler that it’s a Node3D. Because the compiler can’t know at compile time that the get_node() result is a Node3D it can’t mark the line as type safe.
The same happens if you do something like:
The compiler can’t know for sure that the right hand side is a String it just knows that the left hand side is a String because I told them it was.
If I give a more concise type to a then:
It know knows that the right hand side is a String so it marks it as type safe.
Back to your question you could force it to be type safe by adding as Node3D like:
And will mark it as type safe because you are telling the compiler that the right hand side is a Node3D (but if you lie to it it may crash at runtime)
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Thank you. How concerned should I be about type safety? Should I try to make every line of code type safe?
Check this documentation page Static typing in GDScript — Godot Engine (stable) documentation in English where it explains the pros of type safety.
At this moment I’d say it’s not necessary. Try to type your code correctly but, if a line is not green and does not cause problems, don’t obsess over it.
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