subagent transcript

---
name: freecad-wasm-parity-roadmap
description: "Evidence-based roadmap to full FreeCAD desktop parity in wasm — current ~35%, ~80% ceiling, pivy._coin is the linchpin, phase order, hard blockers"
metadata:
  node_type: memory
  type: project
  originSessionId: 17f09f89-ce7c-4f49-aa6a-cf0521026805
---

Roadmap researched 2026-07-05 (7-agent workflow over the actual FreeCAD source + wasm build + deploy). Rendered as an artifact for the user. Current desktop parity ≈ **35%** (usage-weighted; th  …[truncated]

1	# SPDX-License-Identifier: LGPL-2.1-or-later
2	
3	# ***************************************************************************
4	# *                                                                         *
5	# *   Copyright (c) 2017 Yorik van Havre <yorik@uncreated.net>              *
6	# *                                                                         *
7	# *   This file is part of FreeCAD.                                         *
8	# *                                               …[truncated]

1	# SPDX-License-Identifier: LGPL-2.1-or-later
2	
3	# ***************************************************************************
4	# *                                                                         *
5	# *   Copyright (c) 2022 Yorik van Havre <yorik@uncreated.net>              *
6	# *                                                                         *
7	# *   This file is part of FreeCAD.                                         *
8	# *                                               …[truncated]

/home/magik6k/lcad-wasm/freecad-port/FreeCAD/src/Mod/BIM/bimcommands/:
BimArchUtils.py
BimAxis.py
BimBackground.py
BimBeam.py
BimBox.py
BimBuilder.py
BimBuildingPart.py
BimClassification.py
BimClone.py
BimColumn.py
BimCommon.py
BimCompound.py
BimConvert.py
BimCopy.py
BimCovering.py
BimCurtainwall.py
BimCutPlane.py
BimCut.py
BimDiff.py
BimDimensions.py
BimDoor.py
BimDrawingView.py
BimEmptyTrash.py
BimEquipment.py
BimExamples.py
BimExtrude.py
BimFence.py
BimFrame.py
BimFuse.py
BimGlue.py
BimHelp.p  …[truncated]

1	# SPDX-License-Identifier: LGPL-2.1-or-later
2	
3	# ***************************************************************************
4	# *                                                                         *
5	# *   Copyright (c) 2024 Yorik van Havre <yorik@uncreated.net>              *
6	# *                                                                         *
7	# *   This file is part of FreeCAD.                                         *
8	# *                                               …[truncated]

1	# SPDX-License-Identifier: LGPL-2.1-or-later
2	
3	# ***************************************************************************
4	# *                                                                         *
5	# *   Copyright (c) 2023 Yorik van Havre <yorik@uncreated.net>              *
6	# *                                                                         *
7	# *   This file is part of FreeCAD.                                         *
8	# *                                               …[truncated]

1	# SPDX-License-Identifier: LGPL-2.1-or-later
2	
3	import glob
4	import os
5	
6	import Arch_rc
7	import PartGui
8	
9	# populate the list of submodules
10	modules = glob.glob(os.path.join(os.path.dirname(__file__), "*.py"))
11	__all__ = [
12	    os.path.basename(f)[:-3] for f in modules if os.path.isfile(f) and not f.endswith("__init__.py")
13	]
14	
15	from . import *
16	

1	"""Shared NativeIFC availability helpers."""
2	
3	import importlib.util
4	
5	import FreeCAD
6	
7	translate = FreeCAD.Qt.translate
8	
9	_ifcopenshell_state = {"available": None, "reported_missing": False}
10	
11	
12	def invalidate_ifcopenshell_cache():
13	    """Clears the cached ifcopenshell availability state."""
14	
15	    _ifcopenshell_state["available"] = None
16	    _ifcopenshell_state["reported_missing"] = False
17	
18	
19	def has_ifcopenshell(report=False):
20	    """Returns True when i  …[truncated]

===== grep ifcopenshell imports (module-level, whole tree) =====
(eval):3: no matches found: --include=*.py

===== grep lark =====
(eval):6: no matches found: --include=*.py

===== grep packaging =====
(eval):9: no matches found: --include=*.py

===== grep addonmanager =====
(eval):12: no matches found: --include=*.py
zshexit:1: parameter HISTDB_FD does not contain a file descriptor

===== module-top-level ifcopenshell imports (col 1 or shallow indent) =====
ArchReference.py:440:            import ifcopenshell
bimcommands/BimClassification.py:485:        import ifcopenshell
bimcommands/BimSetup.py:111:            import ifcopenshell
bimcommands/BimSetup.py:609:                import ifcopenshell
bimtests/TestArchBuildingPart.py:28:import ifcopenshell
nativeifc/ifc_geometry.py:27:import ifcopenshell
nativeifc/ifc_geometry.py:28:import ifcopenshell.util.unit
importers/exportIF  …[truncated]

===== ifc_observer.py top imports =====

"""Document observer to act on documents containing NativeIFC objects"""

import FreeCAD
from . import has_ifcopenshell

params = FreeCAD.ParamGet("User parameter:BaseApp/Preferences/Mod/NativeIFC")


def add_observer():
    """Adds this observer to the running FreeCAD instance"""

    if not has_ifcopenshell(report=True):
        return

    FreeCAD.BIMobserver = ifc_observer()
    FreeCAD.addDocumentObserver(FreeCAD.BIMobserver)


def remove_observer():  …[truncated]

===== ALL top-level imports across bimcommands/*.py (unique) =====
from ArchStructure import StructureMode
from bimcommands import BimWindow
from draftguitools import gui_dimensions
from draftguitools import gui_lines  # Line tool from Draft
from draftguitools import gui_shape2dview
from enum import Enum
from __future__ import print_function
from . import *
import Arch
import Arch_rc
import ArchStructure
import ast
import csv
import DraftTools
import FreeCAD
import FreeCADGui
import glob
import   …[truncated]

===== path prefixes in freecad.data.js =====

===== _rc.py modules present anywhere in data.js manifests =====
freecad-mods-t2.data.js: "/freecad/Mod/Draft/Draft_rc.py"
freecad-mods-t3.data.js: "/freecad/Mod/Assembly/Assembly_rc.py"

===== packaging / lark / ifcopenshell in any manifest =====
zshexit:1: parameter HISTDB_FD does not contain a file descriptor

===== head of freecad.data.js (structure) =====

  var Module = typeof Module != 'undefined' ? Module : {};

  Module['expectedDataFileDownloads'] ??= 0;
  Module['expectedDataFileDownloads']++;
  (() => {
    // Do not attempt to redownload the virtual filesystem data when in a pthread or a Wasm Worker context.
    var isPthread = typeof ENVIRONMENT_IS_PTHREAD != 'undefined' && ENVIRONMENT_IS_PTHREAD;
    var isWasmWorker = typeof ENVIRONMENT_IS_WASM_WORKER != 'undefined' && ENVIRONMENT_IS_WASM  …[truncated]

===== addonmanager_utilities top-level imports =====
27:from datetime import datetime
28:from typing import Optional, Any, List
29:import os
30:import platform
31:import shutil
32:import stat
33:import subprocess
34:import sys
35:import time
36:import re
37:import ctypes
39:from urllib.parse import urlparse
41:from PySideWrapper import QtCore, QtGui, QtWidgets, QtNetwork
43:import addonmanager_freecad_interface as fci

===== create_pip_call definition (does it need subprocess/network?) =====
582  …[truncated]

===== any App/ or Gui/ C++ subdir? =====
NONE — pure Python module

===== CMakeLists.txt (how Arch_rc + install work) =====
5:# Define the source files and resources of the BIM workbench
8:# If we are building the GUI mode, we need to process the Qt resource file
9:# Note that if any of the files listed in the .qrc file changes, the
10:# resource file will NOT be regenerated automatically. To work around this,
11:# use `touch` on the .qrc file to force regeneration.
12:IF (BUILD_GUI)
13:    PYSI  …[truncated]

===== BIM/Arch dependency gating =====
21:    REQUIRES_MODS(BUILD_BIM                BUILD_PART BUILD_MESH BUILD_MESH_PART BUILD_DRAFT)

===== BUILD_BIM option definition =====
cMake/FreeCAD_Helpers/CheckInterModuleDependencies.cmake:21:    REQUIRES_MODS(BUILD_BIM                BUILD_PART BUILD_MESH BUILD_MESH_PART BUILD_DRAFT)
cMake/FreeCAD_Helpers/InitializeFreeCADBuildOptions.cmake:150:    option(BUILD_BIM "Build the FreeCAD BIM module" ON)

===== is BUILD_BIM currently ON in build tree cach  …[truncated]

===== ArchSql.py: any lark import? =====
NO lark import — self-contained generated parser
===== head of ArchSql.py =====
1:# SPDX-License-Identifier: MIT
2:#
3:# Copyright (c) 2019 Daniel Furtlehner (furti)
4:# Copyright (c) 2025 The FreeCAD Project
5:#
6:# This file is a derivative work of the sql_parser.py file from the
7:# FreeCAD-Reporting workbench (https://github.com/furti/FreeCAD-Reporting).
8:# As per the terms of the original MIT license, this derivative work is also
9:# licensed under   …[truncated]

===== Draft_rc.py: source or build-generated? =====
./src/Mod/Draft/Draft_rc.py
/opt/toolchains/src/freecad-gui-build/Mod/Draft/Draft_rc.py
/opt/toolchains/src/freecad-gui-build/src/Mod/Draft/Draft_rc.py

===== pack-mods.sh (how it collects files, does it grab _rc.py?) =====
#!/usr/bin/env bash
# Build a supplementary emscripten preload package containing the Python trees
# of FreeCAD modules that were enabled AFTER the base freecad.data was built.
# Icons/.ui are compiled into the *Gui.a via qr  …[truncated]

Structured output provided successfully