Fix more missing Blender descriptions leading to crashes #6420

src/bonsai/bonsai/bim/__init__.py

@@ -20,6 +20,7 @@ import os
 import bpy
 import bpy.utils.previews
 import importlib
+from bpy_extras.io_utils import ImportHelper, ExportHelper
 from . import handler, ui, prop, operator
 from typing import Callable, Union
 
@@ -221,7 +222,12 @@ def on_register(scene):
 
 def register():
     for cls in classes:
+        # Prevent crashes in Blender 4.4.0, see #6420.
+        if issubclass(cls, (ImportHelper, ExportHelper)):
+            assert getattr(cls, "bl_description", "") or cls.__doc__, cls
+
         bpy.utils.register_class(cls)
+
     bpy.app.handlers.depsgraph_update_post.append(on_register)
     bpy.app.handlers.undo_post.append(handler.undo_post)
     bpy.app.handlers.redo_post.append(handler.redo_post)

src/bonsai/bonsai/bim/module/alignment/operator.py

@@ -45,6 +45,7 @@ from typing_extensions import assert_never
 class ImportAlignmentCSV(bpy.types.Operator, tool.Ifc.Operator, ImportHelper):
     bl_idname = "bim.import_alignment_csv"
     bl_label = "Import Alignment CSV"
+    bl_description = " Import alignment from the provided .csv file."
     bl_options = {"REGISTER", "UNDO"}
     filename_ext = ".csv"
     filter_glob: bpy.props.StringProperty(default="*.csv", options={"HIDDEN"})

src/bonsai/bonsai/bim/module/cost/operator.py

@@ -536,6 +536,7 @@ class SelectCostScheduleProducts(bpy.types.Operator):
 class ImportCostScheduleCsv(bpy.types.Operator, ImportHelper, tool.Ifc.Operator):
     bl_idname = "bim.import_cost_schedule_csv"
     bl_label = "Import Cost Schedule CSV"
+    bl_description = "Import cost schdule from the provided .csv file."
     bl_options = {"REGISTER", "UNDO"}
     filename_ext = ".csv"
     filter_glob: bpy.props.StringProperty(default="*.csv", options={"HIDDEN"})

src/bonsai/bonsai/bim/module/drawing/operator.py

@@ -2223,6 +2223,7 @@ class ActivateDrawingFromSheet(bpy.types.Operator, ActivateDrawingBase):
 class SelectDocIfcFile(bpy.types.Operator, ImportHelper):
     bl_idname = "bim.select_doc_ifc_file"
     bl_label = "Select Documentation IFC File"
+    bl_description = "Selection .ifc file for documentation."
     bl_options = {"REGISTER", "UNDO"}
     filter_glob: bpy.props.StringProperty(default="*.ifc;*.ifczip;*.ifcxml", options={"HIDDEN"})
     filename_ext = ".ifc"

src/bonsai/bonsai/bim/module/sequence/operator.py

@@ -659,6 +659,7 @@ class DisableEditingWorkCalendar(bpy.types.Operator):
 class ImportCSV(bpy.types.Operator, tool.Ifc.Operator, ImportHelper):
     bl_idname = "bim.import_csv"
     bl_label = "Import CSV"
+    bl_description = "Import work schedule from the provided .csv file."
     bl_options = {"REGISTER", "UNDO"}
     filename_ext = ".csv"
     filter_glob: bpy.props.StringProperty(default="*.csv", options={"HIDDEN"})
@@ -686,6 +687,7 @@ class ImportCSV(bpy.types.Operator, tool.Ifc.Operator, ImportHelper):
 class ImportP6(bpy.types.Operator, tool.Ifc.Operator, ImportHelper):
     bl_idname = "bim.import_p6"
     bl_label = "Import P6"
+    bl_description = "Import provided .xml P6 file."
     bl_options = {"REGISTER", "UNDO"}
     filename_ext = ".xml"
     filter_glob: bpy.props.StringProperty(default="*.xml", options={"HIDDEN"})
@@ -714,6 +716,7 @@ class ImportP6(bpy.types.Operator, tool.Ifc.Operator, ImportHelper):
 class ImportP6XER(bpy.types.Operator, tool.Ifc.Operator, ImportHelper):
     bl_idname = "bim.import_p6xer"
     bl_label = "Import P6 XER"
+    bl_description = "Import provided .xer P6 file."
     bl_options = {"REGISTER", "UNDO"}
     filename_ext = ".xer"
     filter_glob: bpy.props.StringProperty(default="*.xer", options={"HIDDEN"})
@@ -742,6 +745,7 @@ class ImportP6XER(bpy.types.Operator, tool.Ifc.Operator, ImportHelper):
 class ImportPP(bpy.types.Operator, tool.Ifc.Operator, ImportHelper):
     bl_idname = "bim.import_pp"
     bl_label = "Import Powerproject .pp"
+    bl_description = "Import provided .pp file."
     bl_options = {"REGISTER", "UNDO"}
     filename_ext = ".pp"
     filter_glob: bpy.props.StringProperty(default="*.pp", options={"HIDDEN"})
@@ -770,6 +774,7 @@ class ImportPP(bpy.types.Operator, tool.Ifc.Operator, ImportHelper):
 class ImportMSP(bpy.types.Operator, tool.Ifc.Operator, ImportHelper):
     bl_idname = "bim.import_msp"
     bl_label = "Import MSP"
+    bl_description = "Import provided .xml MSP file."
     bl_options = {"REGISTER", "UNDO"}
     filename_ext = ".xml"
     filter_glob: bpy.props.StringProperty(default="*.xml", options={"HIDDEN"})
@@ -798,6 +803,7 @@ class ImportMSP(bpy.types.Operator, tool.Ifc.Operator, ImportHelper):
 class ExportMSP(bpy.types.Operator, ExportHelper):
     bl_idname = "bim.export_msp"
     bl_label = "Export MSP"
+    bl_description = "Export work schedule as .xml MSP file."
     bl_options = {"REGISTER", "UNDO"}
     filename_ext = ".xml"
     filter_glob: bpy.props.StringProperty(default="*.xml", options={"HIDDEN"})
@@ -831,6 +837,7 @@ class ExportMSP(bpy.types.Operator, ExportHelper):
 class ExportP6(bpy.types.Operator, ExportHelper):
     bl_idname = "bim.export_p6"
     bl_label = "Export P6"
+    bl_description = "Export work schedule as .xml P6 file."
     bl_options = {"REGISTER", "UNDO"}
     filename_ext = ".xml"
     filter_glob: bpy.props.StringProperty(default="*.xml", options={"HIDDEN"})