the argument list of signal is meaningless

[1e0nhardt]

Tested versions

• Reproducible in: 4.3.stable, 4.2.2.stable

System information

Godot v4.3.stable - Windows 10.0.22631 - Vulkan (Forward+) - dedicated NVIDIA GeForce RTX 4070 Ti (NVIDIA; 32.0.15.6094) - 13th Gen Intel(R) Core(TM) i7-13700K (24 Threads)

Issue description

extends Control

signal test_signal
signal test_signal2
signal test_signal3(a, b, c, d, e, f, g)
signal test_signal4(a, b, c, d)

@onready var button: Button = $VBoxContainer/Button
@onready var button_2: Button = $VBoxContainer/Button2
@onready var button_3: Button = $VBoxContainer/Button3
@onready var button_4: Button = $VBoxContainer/Button4


func _ready():
    test_signal.connect(func(): print("test_signal"))
    test_signal2.connect(func(a): print("test_signal2:", a))
    test_signal3.connect(func(a, b): print("test_signal2:", a, b))
    test_signal4.connect(func(a, b, c): print("test_signal2:", a, b, c))

    button.pressed.connect(func(): test_signal.emit())
    button_2.pressed.connect(func(): test_signal2.emit(1))
    button_3.pressed.connect(func(): test_signal3.emit(1, 2))
    button_4.pressed.connect(func(): test_signal4.emit(1, 2, 3))

This code snippet can run without any error or warning. It seems that the signal object does not check the parameters when emit and connect. So, the argument list of signal is actually meaningless.
I think the number of parameters should at least be checked for correctness at compile time.

Steps to reproduce

see issue.

Minimal reproduction project (MRP)

signal-args.zip

[AThousandShips]

Thank you for reporting, this is already tracked in:

• GDScript 2.0: Static typing on signals isn't enforced #54333

We prefer to keep things in one place, so closing this