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Tag: Branch: Tree: e5a9272034

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meson/mesonbuild

History

Eli Schwartz e5a9272034 typing: fix some broken Sequence annotations ... T.Sequence is a questionable concept. The idea is to hammer out generic, maximally forgiving APIs that operate on protocols, which is a fancy way of saying "I don't care if you use tuples or lists". This is rarely needed, actually, and in exchange for this fancy behavior you get free bugs. Specifically, `somestr` is of type `T.Sequence[str]`, and also `somestr[0]` is another string of type you guessed it. It's ~~turtles~~ strings all the way down. It's worth noting that trying to code for "protocols" is a broken concept if the contents have semantic meaning, e.g. it operates on "the install tags of this object" rather than "an iterable that supports efficient element access". The other way to use T.Sequence is "I don't like that T.List is invariant, but also I don't like that T.Tuple makes you specify exact ordering". This sort of works. In fact it probably does work as long as you don't allow str in your sequences, which of course everyone allows anyway. Use of Sequence has cute side effects, such as actually passing lists around, knowing that you are going to get a list and knowing that you need to pass it on as a list, and then having to re-allocate as `list(mylist)` "because the type annotations says it could be a str or tuple". Except it cannot be a str, because if it is then the application is fatally flawed and logic errors occur to disastrous end user effects, and the type annotations: - do not enforce their promises of annotating types - fail to live up to "minimal runtime penalties" due to all the `list()` Shun this broken concept, by hardening the type annotations. As it turns out, we do not actually need any of this covariance or protocol-ism for a list of strings! The whole attempt was a slow, buggy waste of time.		2 years ago
..
ast	pylint: enable the set_membership plugin	2 years ago
backend	Remove useless EmptyExternalProgram	2 years ago
cmake	pylint: enable the set_membership plugin	2 years ago
compilers	pylint: enable the set_membership plugin	2 years ago
dependencies	typing: fix some broken Sequence annotations	2 years ago
interpreter	typing: fix some broken Sequence annotations	2 years ago
interpreterbase	interpreter: add a feature_validator to KwargInfo	2 years ago
linkers	Fix various spelling errors	2 years ago
modules	typing: fix some broken Sequence annotations	2 years ago
scripts	on newer versions of clang-format, use builtin --check handling	2 years ago
templates	Fix a typo in the CUDA template	2 years ago
utils	typing: fix some broken Sequence annotations	2 years ago
wrap	wrap: Don't use --branch with shallow clones against HEAD	2 years ago
__init__.py	compilers/d: Add b_ndebug support	5 years ago
_pathlib.py	pathlib: Patch pathlib to work around some bugs (fixes #7295)	4 years ago
_typing.py	typing: replace ImmutableSetProtocol with typing.AbstractSet	3 years ago
arglist.py	pylint: enable unnecessary-dunder-call	2 years ago
build.py	simplify install_tag handling according to the accepted API	2 years ago
coredata.py	Bump version numbers for rc1.	2 years ago
depfile.py	pylint: enable the set_membership plugin	2 years ago
envconfig.py	Add NASM compiler	2 years ago
environment.py	debug cygwin CI	2 years ago
mcompile.py	pylint: enable the bad_builtin checker	2 years ago
mconf.py	mconf: Do not print None for empty choices	2 years ago
mdevenv.py	devenv: Set QEMU_LD_PREFIX to sys_root	2 years ago
mdist.py	pylint: enable useless-return	2 years ago
mesondata.py	port from embedded data to importlib.resources	3 years ago
mesonlib.py	Move classes used by scripts to their own module	2 years ago
mesonmain.py	pylint: enable the set_membership plugin	2 years ago
minit.py	pylint: enable the set_membership plugin	2 years ago
minstall.py	minstall: make do_strip run with -Sx for macOS targets	2 years ago
mintro.py	pylint: enable global-statement	2 years ago
mlog.py	mlog: Use less from git on Windows	2 years ago
mparser.py	typing: fix some broken Sequence annotations	2 years ago
msetup.py	pylint: enable used-before-assignment	2 years ago
msubprojects.py	msubprojects: Fix issues when updating all wraps	2 years ago
mtest.py	mtest: warn on invalid TAP output	2 years ago
munstable_coredata.py	pylint: enable the set_membership plugin	2 years ago
optinterpreter.py	Allow deprecating an option for a new one	3 years ago
programs.py	Remove useless EmptyExternalProgram	2 years ago
rewriter.py	pylint: enable the set_membership plugin	2 years ago