1 files changed, 158 insertions, 0 deletions
diff --git a/sources/shiboken6/shibokenmodule/files.dir/shibokensupport/signature/loader.py b/sources/shiboken6/shibokenmodule/files.dir/shibokensupport/signature/loader.py
new file mode 100644
index 000000000..fb4c9eeca
--- /dev/null
+++ b/sources/shiboken6/shibokenmodule/files.dir/shibokensupport/signature/loader.py
@@ -0,0 +1,158 @@
+# Copyright (C) 2022 The Qt Company Ltd.
+# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+
+# flake8: noqa E:402
+# flake8: noqa F:401
+
+"""
+loader.py
+
+The loader has to load the signature module completely at startup,
+to make sure that the functions are available when needed.
+This is meanwhile necessary to make the '__doc__' attribute work correctly.
+
+It does not mean that everything is initialized in advance. Only the modules
+are loaded completely after 'import PySide6'.
+
+This version uses both a normal directory, but has also an embedded ZIP file
+as a fallback solution. The ZIP file is generated by 'embedding_generator.py'
+and embedded into 'signature.cpp' as "embed/signature.inc".
+
+Meanwhile, the ZIP file grew so much, that MSVC had problems
+with it's 64k string limit, so we had to break the string up.
+See 'zipped_string_sequence' in signature.cpp.
+"""
+
+import sys
+import os
+import traceback
+import types
+
+
+# name used in signature.cpp
+def pyside_type_init(type_key, sig_strings):
+    return parser.pyside_type_init(type_key, sig_strings)
+
+
+# name used in signature.cpp
+def create_signature(props, key):
+    return layout.create_signature(props, key)
+
+
+# name used in signature.cpp
+def seterror_argument(args, func_name, info):
+    return errorhandler.seterror_argument(args, func_name, info)
+
+
+# name used in signature.cpp
+def make_helptext(func):
+    return errorhandler.make_helptext(func)
+
+
+# name used in signature.cpp
+def finish_import(module):
+    return importhandler.finish_import(module)
+
+
+# name used in signature.cpp
+def feature_import(*args, **kwds):
+    # don't spend a stack level here for speed and compatibility
+    global feature_import
+    feature_import = feature.feature_import
+    return feature_import(*args, **kwds)
+
+
+# name used in signature.cpp
+def feature_imported(*args, **kwds):
+    # don't spend a stack level here for speed and compatibility
+    global feature_imported
+    feature_imported = feature.feature_imported
+    return feature_imported(*args, **kwds)
+
+
+import builtins
+import signature_bootstrap
+from shibokensupport import signature, feature
+signature.get_signature = signature_bootstrap.get_signature
+# PYSIDE-1019: Publish the __feature__ dictionary.
+feature.pyside_feature_dict = signature_bootstrap.pyside_feature_dict
+builtins.__feature_import__ = signature_bootstrap.__feature_import__
+del signature_bootstrap
+
+is_pypy = hasattr(sys, "pypy_version_info")
+
+
+def put_into_package(package, module, override=None):
+    # take the last component of the module name
+    name = (override if override else module.__spec__.name).rsplit(".", 1)[-1]
+    # allow access as {package}.{name}
+    if package:
+        setattr(package, name, module)
+    # put into sys.modules as a package to allow all import options
+    fullname = f"{package.__spec__.name}.{name}" if package else name
+    module.__spec__.name = fullname
+    # publish new dotted name in sys.modules
+    sys.modules[fullname] = module
+
+
+def move_into_pyside_package():
+    import shibokensupport
+    import PySide6
+    try:
+        import PySide6.support
+    except ModuleNotFoundError:
+        # This can happen in the embedding case.
+        put_into_package(PySide6, shibokensupport, "support")
+    if not is_pypy:
+        put_into_package(PySide6.support, feature)
+    put_into_package(PySide6.support, signature)
+    put_into_package(PySide6.support.signature, mapping)
+    put_into_package(PySide6.support.signature, errorhandler)
+    put_into_package(PySide6.support.signature, layout)
+    put_into_package(PySide6.support.signature, lib)
+    put_into_package(PySide6.support.signature, parser)
+    put_into_package(PySide6.support.signature, importhandler)
+    put_into_package(PySide6.support.signature.lib, enum_sig)
+    put_into_package(PySide6.support.signature.lib, pyi_generator)
+    put_into_package(PySide6.support.signature.lib, tool)
+
+
+from shibokensupport.signature import mapping
+from shibokensupport.signature import errorhandler
+from shibokensupport.signature import layout
+from shibokensupport.signature import lib
+from shibokensupport.signature import parser
+from shibokensupport.signature import importhandler
+from shibokensupport.signature.lib import enum_sig
+from shibokensupport.signature.lib import pyi_generator
+from shibokensupport.signature.lib import tool
+
+import enum
+
+post_init = lambda: None  # noqa E:731 default
+
+if "PySide6" in sys.modules:
+    # We publish everything under "PySide6.support", again.
+    move_into_pyside_package()
+    # PYSIDE-1502: Make sure that support can be imported.
+    try:
+        import PySide6.support
+    except ModuleNotFoundError:
+        print("PySide6.support could not be imported. "
+              "This is a serious configuration error.", file=sys.stderr)
+        raise
+
+    def post_init():
+        """
+        This function needs to be called explicitly when all function pointers are set.
+        Doing this during import has bad side-effects when preloading the loader.
+        """
+        # PYSIDE-1019: Modify `__import__` to be `__feature__` aware.
+        if not is_pypy:
+            # PYSIDE-535: Cannot enable __feature__ for various reasons.
+            import PySide6.support.feature
+            sys.modules["__feature__"] = PySide6.support.feature
+            builtins.__orig_import__ = builtins.__import__
+            builtins.__import__ = builtins.__feature_import__
+
+# end of file