GDScript: "Cannot find property emit on base Signal"

[MewPurPur]

Godot version

Godot v4.2.dev5 - Pop!_OS 22.04 LTS - X11 - Vulkan (Forward+) - integrated Intel(R) Graphics (ADL GT2) () - 12th Gen Intel(R) Core(TM) i5-1235U (12 Threads)

System information

Godot v4.2.dev5 - Pop!_OS 22.04 LTS - X11 - Vulkan (Forward+) - integrated Intel(R) Graphics (ADL GT2) () - 12th Gen Intel(R) Core(TM) i5-1235U (12 Threads)

Issue description

extends Node

signal lmofa
signal yeet

func _ready():
    lmofa.connect(yeet.emit)

This results in a "Cannot find property emit on base Signal" error. This is either a bug or a weird error text.

Steps to reproduce

Copy the script above.

Minimal reproduction project

N/A

[AThousandShips]

Probably because the method is vararg, unsure if you can get a callble to that

[dalexeev]

This is not a bug, but a limitation. A Callable can only represent Object methods and CustomCallables (for example lambdas in GDScript). Callable cannot represent methods of built-in Variant types.

• See also GDScript 2.0: Methods of built-in types are not recognized as Callable (missing documentation) #58912.

[MewPurPur]

Cool, so better error text, and/or the limitation is going to get lifted eventually?

[AThousandShips]

Unsure what the error detection could do with the partsed/analyser

[dalexeev]

I'll try to implement a CutomCallable for built-in Variant types.