When mutable items are stored in an lru cache, changing the returned
items changes the cached items as well. Therefore we want to ensure that
we're not mutating them. Using the ImmutableListProtocol allows mypy to
find mutations and reject them. This doesn't solve the problem of
mutable values inside the values, so you could have to do things like:
```python
ImmutableListProtocol[ImmutableListProtocol[str]]
```
or equally hacky. It can also be used for input types and acts a bit
like C's const:
```python
def foo(arg: ImmutableListProtocol[str]) -> T.List[str]:
arg[1] = 'foo' # works while running, but mypy errors
```
* Allow address sanitizer for Visual Studio 2019 version 16.9
Address Sanitizer was first supported with the current syntax in Visual
Studio 16.9.0 (cl version 19.28.29910).
* VS: Convert /fsanitize=address to project file setting
This gets rid of compile warnings, and simplifies the code.
Note that `work_dir` in sanity_check_impl was incorrect,
it was used both to prepend to file names and as cwd=work_dir
argument to Popen. This is fixed here.
Closes gh-7344
They are supposed to have different behavior. The environment variables
apply to both the compiler and linker when the compiler acts as a
linker, but the command line ones do not.
Fixes#8345
Dependencies is already a large and complicated package without adding
programs to the list. This also allows us to untangle a bit of spaghetti
that we have.
This requires quite a complex and messy logic.
As @dcbaker suggested in #8491, this could be replaced by
an abstraction over linker flags instead of having GNU flags
translated.
All changes were created by running
"pyupgrade --py3-only --keep-percent-format"
and committing the results. I have not touched string formatting for
now.
- use set literals
- simplify .format() parameter naming
- remove __future__
- remove default "r" mode for open()
- use OSError rather than compatibility aliases
- remove stray parentheses in function(generator) scopes
Andrea Pappacoda
Eli Schwartz
miebka
Daniel Mensinger
Ian Harvey
Justin Handville
Dylan Baker
Volker-Weissmann
Peter Harris
Jussi Pakkanen
Alexander Neumann
Ralf Gommers
Olexa Bilaniuk
D Scott Phillips
Remi Thebault
Vili Väinölä