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[PATCH v3 00/17] qapi: static typing conversion, pt1.5

From: John Snow
Subject: [PATCH v3 00/17] qapi: static typing conversion, pt1.5
Date: Tue, 19 Jan 2021 13:02:25 -0500

Hi, this patchset enables strict optional checking in mypy for
everything we have typed so far.

In general, this patchset seeks to clarify Optional[T] vs T and lift the
no-strict-optional restriction in mypy.

Ironing out these issues allows us to be even stricter with our type
checking, which improves consistency in subclass interface types and
should make review a little nicer.

This series is based on (but does not require) the 'qapi: sphinx-autodoc
for qapi module' series.


Heavily reshuffled. QAPISourceInfo patches are removed in favor of patch
implications for later series, but none here in this series.

001/17:[----] [--] 'qapi/commands: assert arg_type is not None'
002/17:[----] [--] 'qapi/events: fix visit_event typing'
003/17:[----] [--] 'qapi/main: handle theoretical None-return from re.match()'
004/17:[down] 'qapi/gen: inline _wrap_ifcond into end_if()'

Module naming patches begin here. Their ordering is a little troubled,
but I've rebased and re-ordered them too many times and I'm spinning my wheels.
Suggestions welcome.

005/17:[down] 'qapi: pass QAPISchemaModule to visit_module instead of str'
006/17:[down] 'qapi: centralize is_[user|system|builtin]_module methods'
007/17:[down] 'qapi/gen: Replace ._begin_system_module()'
008/17:[down] 'qapi: use explicitly internal module names'
009/17:[down] 'qapi: use './builtin' as the built-in module name'
010/17:[down] 'qapi/gen: Combine ._add_[user|system]_module'
011/17:[down] 'qapi: centralize the built-in module name definition'

This segment of patches focuses on tightening the types in gen.py. #15
is the payoff for 13-14 and several patches in the last segment.

012/17:[----] [-C] 'qapi/gen: write _genc/_genh access shims'
013/17:[down] 'qapi/gen: Support for switching to another module temporarily'
014/17:[down] 'qapi/commands: Simplify command registry generation'
015/17:[down] 'qapi/gen: Drop support for QAPIGen without a file name'

This segment wraps up removing the last non-strict option in mypy.

016/17:[down] 'qapi: type 'info' as Optional[QAPISourceInfo]'
017/17:[----] [--] 'qapi: enable strict-optional checks'

John Snow (12):
  qapi/commands: assert arg_type is not None
  qapi/events: fix visit_event typing
  qapi/main: handle theoretical None-return from re.match()
  qapi/gen: inline _wrap_ifcond into end_if()
  qapi: pass QAPISchemaModule to visit_module instead of str
  qapi: centralize is_[user|system|builtin]_module methods
  qapi: use explicitly internal module names
  qapi: use './builtin' as the built-in module name
  qapi: centralize the built-in module name definition
  qapi/gen: write _genc/_genh access shims
  qapi: type 'info' as Optional[QAPISourceInfo]
  qapi: enable strict-optional checks

Markus Armbruster (5):
  qapi/gen: Replace ._begin_system_module()
  qapi/gen: Combine ._add_[user|system]_module
  qapi/gen: Support for switching to another module temporarily
  qapi/commands: Simplify command registry generation
  qapi/gen: Drop support for QAPIGen without a file name

 docs/sphinx/qapidoc.py                   |  8 +-
 scripts/qapi/commands.py                 | 62 ++++++++-------
 scripts/qapi/events.py                   | 16 ++--
 scripts/qapi/gen.py                      | 96 ++++++++++++------------
 scripts/qapi/main.py                     |  2 +
 scripts/qapi/mypy.ini                    |  1 -
 scripts/qapi/schema.py                   | 43 +++++++++--
 scripts/qapi/types.py                    |  4 +-
 scripts/qapi/visit.py                    |  6 +-
 tests/qapi-schema/comments.out           |  2 +-
 tests/qapi-schema/doc-good.out           |  2 +-
 tests/qapi-schema/empty.out              |  2 +-
 tests/qapi-schema/event-case.out         |  2 +-
 tests/qapi-schema/include-repetition.out |  2 +-
 tests/qapi-schema/include-simple.out     |  2 +-
 tests/qapi-schema/indented-expr.out      |  2 +-
 tests/qapi-schema/qapi-schema-test.out   |  2 +-
 tests/qapi-schema/test-qapi.py           |  4 +-
 18 files changed, 145 insertions(+), 113 deletions(-)


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