Hi, this series adds static types to the QAPI module. This is part three, and it focuses on expr.py.
Environment: - Python >= 3.6, <= 3.8 * - mypy >= 0.770 - pylint >= 2.6.0 - flake8 - isort Every commit should pass with (from ./scripts/): - flake8 qapi/ - pylint --rcfile=qapi/pylintrc qapi/ - mypy --config-file=qapi/mypy.ini qapi/ - pushd qapi && isort -c . && popd V4: Patch 2 is exploratory. Patch 8 is broken and should be merged into Patch 9. Patches 17-19 are optional and I'd sooner you drop them than have to respin. 001/19:[down] 'qapi/expr: Comment cleanup' 002/19:[down] 'flake8: Enforce shorter line length for comments and docstrings' 003/19:[----] [--] 'qapi/expr.py: Remove 'info' argument from nested check_if_str' 004/19:[----] [--] 'qapi/expr.py: Check for dict instead of OrderedDict' 005/19:[0011] [FC] 'qapi/expr.py: constrain incoming expression types' 006/19:[0006] [FC] 'qapi/expr.py: Add assertion for union type 'check_dict'' 007/19:[----] [--] 'qapi/expr.py: move string check upwards in check_type' 008/19:[down] 'qapi: add tests for invalid 'data' field type' 009/19:[0004] [FC] 'qapi/expr.py: Check type of 'data' member' 010/19:[0008] [FC] 'qapi/expr.py: Add casts in a few select cases' 011/19:[0005] [FC] 'qapi/expr.py: Modify check_keys to accept any Collection' 012/19:[0057] [FC] 'qapi/expr.py: add type hint annotations' 013/19:[0032] [FC] 'qapi/expr.py: Consolidate check_if_str calls in check_if' 014/19:[0016] [FC] 'qapi/expr.py: Remove single-letter variable' 015/19:[----] [--] 'qapi/expr.py: enable pylint checks' 016/19:[0168] [FC] 'qapi/expr.py: Add docstrings' 017/19:[----] [-C] 'qapi/expr.py: Use tuples instead of lists for static data' 018/19:[----] [-C] 'qapi/expr.py: move related checks inside check_xxx functions' 019/19:[0003] [FC] 'qapi/expr.py: Use an expression checker dispatch table' - Add test patch to demonstrate 72col docstring enforcement. (Not a fan.) - Changed MutableMapping type to regular ol' dict. - Added tests for alternate and union to see what happens when we pass a list for 'data' instead. (It crashes.) - Rewrote a bunch of the docstrings. - Updated type hints for rc0 - Rebased on latest master, incorporating latest qapi changes. - Addressed most feedback, some exceptions; - Kept isinstance check for dict; it is strictly more convenient to me and it does not cause breakages. It won't cause breakages. RFCs/notes: - I'd be flabbergasted if anyone reads these. John Snow (19): qapi/expr: Comment cleanup flake8: Enforce shorter line length for comments and docstrings qapi/expr.py: Remove 'info' argument from nested check_if_str qapi/expr.py: Check for dict instead of OrderedDict qapi/expr.py: constrain incoming expression types qapi/expr.py: Add assertion for union type 'check_dict' qapi/expr.py: move string check upwards in check_type qapi: add tests for invalid 'data' field type qapi/expr.py: Check type of 'data' member qapi/expr.py: Add casts in a few select cases qapi/expr.py: Modify check_keys to accept any Collection qapi/expr.py: add type hint annotations qapi/expr.py: Consolidate check_if_str calls in check_if qapi/expr.py: Remove single-letter variable qapi/expr.py: enable pylint checks qapi/expr.py: Add docstrings qapi/expr.py: Use tuples instead of lists for static data qapi/expr.py: move related checks inside check_xxx functions qapi/expr.py: Use an expression checker dispatch table scripts/qapi/.flake8 | 1 + scripts/qapi/common.py | 8 +- scripts/qapi/events.py | 9 +- scripts/qapi/expr.py | 499 +++++++++++++----- scripts/qapi/gen.py | 8 +- scripts/qapi/introspect.py | 8 +- scripts/qapi/main.py | 4 +- scripts/qapi/mypy.ini | 5 - scripts/qapi/parser.py | 15 +- scripts/qapi/pylintrc | 1 - scripts/qapi/schema.py | 23 +- scripts/qapi/types.py | 7 +- .../alternate-invalid-data-type.err | 2 + .../alternate-invalid-data-type.json | 4 + .../alternate-invalid-data-type.out | 0 tests/qapi-schema/meson.build | 2 + tests/qapi-schema/union-invalid-data-type.err | 2 + .../qapi-schema/union-invalid-data-type.json | 13 + tests/qapi-schema/union-invalid-data-type.out | 0 19 files changed, 449 insertions(+), 162 deletions(-) create mode 100644 tests/qapi-schema/alternate-invalid-data-type.err create mode 100644 tests/qapi-schema/alternate-invalid-data-type.json create mode 100644 tests/qapi-schema/alternate-invalid-data-type.out create mode 100644 tests/qapi-schema/union-invalid-data-type.err create mode 100644 tests/qapi-schema/union-invalid-data-type.json create mode 100644 tests/qapi-schema/union-invalid-data-type.out -- 2.30.2