Cleanup signature module before substantial change

There were some refinements applied while developing
"Support Pointer Primitive Types by Arrays or Result Tuples".
This patch moves these changes out which are not essential
for that patch. They include

- sort all mapping groups by name
- replace huge regex by a pattern generator
- replace dictionary string entries by SimpleNameSpace
- improve PEP 563 handling
- simplify "zero(sometype)" substantially
- better handling of "QGenericMatrix" (preview)

A test for the generated pattern against a reference parser
was added.

Task-number: PYSIDE-795
Task-number: PYSIDE-951
Change-Id: I5a6b236850c63a7db77b7f7b88881486fd1e61be
Reviewed-by: Cristian Maureira-Fredes <cristian.maureira-fredes@qt.io>

1 files changed, 4 insertions, 0 deletions

diff --git a/sources/pyside2/PySide2/support/generate_pyi.py b/sources/pyside2/PySide2/support/generate_pyi.py
index 294cdc91b..c732227f4 100644
--- a/sources/pyside2/PySide2/support/generate_pyi.py
+++ b/sources/pyside2/PySide2/support/generate_pyi.py
@@ -252,6 +252,10 @@ def generate_all_pyi(outpath, options):
     from PySide2.support.signature import inspect
     from PySide2.support.signature.lib.enum_sig import HintingEnumerator
 
+    # propagate USE_PEP563 to the mapping module.
+    # Perhaps this can be automated?
+    PySide2.support.signature.mapping.USE_PEP563 = USE_PEP563
+
     outpath = outpath or os.path.dirname(PySide2.__file__)
     name_list = PySide2.__all__ if options.modules == ["all"] else options.modules
     errors = ", ".join(set(name_list) - set(PySide2.__all__))