Godot version

4.0.alpha10

System information

Windows10, GPU: AMD R7 200 SERIES(250)

Issue description

only error: modules/gdscript/gdscript_analyzer.cpp:656 - Parser bug (please report): tried to assign unset node without an identifier.

Steps to reproduce

extends StaticBody3D

var file = ConfigFile.new()

@export var NOISE : FastNoiseLite
@export var SIZE : Vector2i = Vector2i(10, 10)
@export var HEIGHT_M : float = 5.0
@export var material : StandardMaterial3D

var st := SurfaceTool.new()
var mdt := MeshDataTool.new()
var arr := ArrayMesh.new()
var plane_mesh := PlaneMesh.new()

var COORD := {}
var COORD_NEW := {}
var INDEXS := {}
var INDEXS_NEW := {}


func _ready() -> void:
	plane_mesh.size = Vector2(SIZE)
	plane_mesh.subdivide_depth = SIZE.y - 1
	plane_mesh.subdivide_width = SIZE.x - 1
	
	st.create_from( plane_mesh, 0 )
	var plane = st.commit()
	
	mdt.create_from_surface( plane, 0 )
	
	for index in mdt.get_vertex_count():
		var vertex = mdt.get_vertex( index )
		vertex.y = NOISE.get_noise_3d( vertex.x, vertex.y, vertex.z ) * HEIGHT_M
		vertex = Vector3( Vector3i(vertex) )
		COORD[str(vertex)] = index
		INDEXS[str(index)] = vertex
	
	for index in INDEXS.size():
		var vertex = INDEXS[str(index)]
		if index != 0:
			var vertex_last = INDEXS[str(index - 1)]
			var dv = vertex.direction_to(vertex_last) * 10
			var ds = INDEXS[str(index)].distance_to(INDEXS_NEW[str(index - 1)])
			dv = dv.floor()
			var ds_10 = floor(ds * 10)
			print(ds)
			if dv.x == 7 and dv.y == 7 and dv.z == 0:
				vertex.x += 1
			if ds_10 == 14:
				vertex.y += 0.41421353816986
		
		mdt.set_vertex( index, vertex )
		COORD_NEW[str(vertex)] = index
		INDEXS_NEW[str(index)] = vertex
		
	
	arr.clear_surfaces()
	mdt.commit_to_surface( arr )
	arr.surface_set_material( 0, material )
	var mesh_inst = MeshInstance3D.new()
	mesh_inst.mesh = arr
	add_child( mesh_inst )
	
	# save
	file_add_coord()
	save_file()

func _physics_process(_delta: float) -> void:
	if Input.is_action_just_pressed("switch_mode_visible"):
		material.use_point_size = true if !material.use_point_size else false

# for save game information.
func file_add_coord() -> void:
	for index in INDEXS.size():
		file.set_value( "coordinates", str(index) + " - old", INDEXS[str(index)] )
		file.set_value( "coordinates", str(index) + " - new", INDEXS_NEW[str(index)] )
func file_add_value(section: String, key: String, value: Variant = null) -> void:
	#if key is empty, then will use index.
	
	for index in INDEXS.size():
		if key == "":
			file.set_value( section,  index, INDEXS[str(index)] )
		else:
			file.set_value( section,  key, INDEXS[str(index)] )
func save_file() -> void:
	file.save( "res://InfoVerticesWorld.cfg" )

Minimal reproduction project

Code is writed already

Related to https://github.com/godotengine/godot/issues/62006.

Did you upgrade your project from a previous 4.0 alpha?

I'm also starting to see these errors in alpha10, though I didn't right after upgrading from 9.

This code, which only was written in alpha10, will print the error 3-4 times in my project.

extends ControlState


func enter(message := {}) -> void:
  super.enter(message)
  Input.set_mouse_mode(Input.MOUSE_MODE_VISIBLE)
  

func exit() -> void:
  super.exit()
  Input.set_mouse_mode(Input.MOUSE_MODE_CAPTURED)

If there's a way to get more helpful error messages, I'm happy to investigate further.

I found an easier way to reproduce the same error code in Godot alpha 10 on Win 11 64bits.

1. Create a node and attached a GDScript
2. Add the code below @onready var _state_machine := _get_state_machine(self) func _get_state_machine( node: Node ) -> Node: return node
3. Save, assign the main tscn and run
4. The error message shows as below: --- Debugging process started --- modules/gdscript/gdscript_analyzer.cpp:656 - Parser bug (please report): tried to assign unset node without an identifier

The sample project is attached: GetNodeError.zip

To see the same error code in Godot 4.0 alpha 12, change the code in step 2 to:

@onready var _state_machine : Node = _get_state_machine(self)

Still reproducible v4.0.alpha.custom_build [b3bd08207]

extends Node

var test := _get_value()

func _get_value() -> int:
	return 5

analyzerbug.zip

extends Node

var test := _get_value()

func _get_value() -> int:
	return 5

See #58542 and #63438.

I also get Parser bug (please report): tried to assign unset node without an identifier. when I do the following in 4.0 alpha 10 or later (earlier versions not tested):

1. Create a new script in any project.
2. Paste in the following code.
3. Type a . at the end.

extends Node

var test_arr = [
	{"a": "1"}
]

var test_val = test_arr[0]

Seeing this as early as alpha14 WHILE writing the script in question. Once I'm done writing, the error goes away. Still happens in beta 1 (it did when I was upgrading to account for the API changes)

For me, godot crashes slightly after this. Not sure if its related?

handle_crash: Program crashed with signal 11
Engine version: Godot Engine v4.0.beta4.official (e6751549cf7247965d1744b8c464f5e901006f21)
[1] /usr/lib/libc.so.6(+0x38a00) [0x7f1d63908a00] (??:0)
[2] godot4() [0x1122d36] (??:0)
[3] godot4() [0x11e5d50] (??:0)
[4] godot4() [0x11e852c] (??:0)
[5] godot4() [0x10f1f6d] (??:0)
[6] godot4() [0x45cf3b0] (??:0)
[7] godot4() [0x107dc18] (??:0)
[8] godot4() [0x103f78b] (??:0)
[9] godot4() [0x424c5e8] (??:0)
[10] godot4() [0x426eb5f] (??:0)
[11] godot4() [0x14442e0] (??:0)
[12] godot4() [0x1444c5a] (??:0)
[13] godot4() [0x105aa25] (??:0)
[14] godot4() [0x106019b] (??:0)
[15] godot4() [0x4245ea4] (??:0)
[16] godot4() [0x29209ce] (??:0)
[17] godot4() [0x2965f4e] (??:0)
[18] godot4() [0xe5da65] (??:0)
[19] godot4() [0xd96fa3] (??:0)
[20] /usr/lib/libc.so.6(+0x23290) [0x7f1d638f3290] (??:0)
[21] /usr/lib/libc.so.6(__libc_start_main+0x8a) [0x7f1d638f334a] (??:0)
[22] godot4() [0xdb87de] (??:0)

Ill see if i can get my hands on a debug build.

I tried to reproduce numerous examples here, but couldn't reproduce on master (fcba87e). I suggest to close this issue.