The dependency lookup is a lot of complex code. This refactor it all
into a single file/class outside of interpreter main class. This new
design allows adding more fallbacks candidates in the future (e.g. using
cc.find_library()) but does not yet add any extra API.
This allows checking specific values that are added or deprecated, which
we do a surprising amount of. This works with both containers and scalar
values
This is meant to allow simple type conversions to happen before the
interpreter function is called. This should simplify some cases like the
"native" keyword arugment that are booleans in the Meson DSL, but an
Enum in the implementation
This attribute is a callable that returns a string if the value is
invalid, otherwise None. This intended for cases like the `install_*`
function's `install_mode` paramater, which is either an int or the
string "preserve", which allows us to do nice things like:
```python
class Kwargs(TypedDict):
install_mode: T.Union[int, T.Literal['preserve']]
@typed_kwargs(
'foo', KwargInfo('install_mode', ...,
validator=lambda x: None if isinstance(x, int) or x == 'preserve' else 'must be the literal "preserve"),
)
def install_data(self, node, args, kwargs: 'Kwargs'):
...
```
In this case mypy *knows* that the string is preserve, as do we, and we
can simply do tests like:
```python
if kwargs['install_mode'] == 'preserve':
...
else:
# this is an int
```
Fix the following Python error:
D:\a\1\s\run_unittests.py:6654: DeprecationWarning: invalid escape sequence \
self.assertEqual(libhello_nolib.get_pkgconfig_variable(escaped_var, {}), hello world)
Use a raw string literal.
It's really inconvenient to want a thing that is always a list, but not
be able to provide a default value of a list because of mutation. To
that end the typed_kwargs method now makes a shallow copy of the default
when using a `ContainerTypeInfo` as the type. This mean that using a
default of `[]` is perfectly safe.
This partially reverts commit add502c648.
In 'linkshared' test, annotate cppfunc() as imported, so an indirection
through an import stub is generated, avoiding a relocation size error
when building using gcc for Cygwin with LTO on.
Align with the example of how to write this portably in [1].
The 'c' language part of that test already gets this right.
[1] http://gcc.gnu.org/wiki/Visibility
We need to escape space in variables that gets into cflags or libs
because otherwise we cannot split compiler args when paths contains
spaces. But custom variables are unlikely to be path that gets used in
cflags/libs, and escaping them cause regression in GStreamer that use
space as separator in a list variable.
We need to konw on rconfigure which options have already bee set not
just for the super project, but also for the subproject. However, using
first_invocation is not sufficient, as a reconfigure could add a new
subpproject that wasn't present before, and we need to initialize that
project's builtins.
This will help facilitate cache busting in certain situations, and
replaces hand-rolled solutions of writing a length command to remove
various files/folders within the subprojects directory.
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
Some variables are reserved because meson set them automatically. But we
are not setting them for dataonly pc files, so there is no reason to
reserve them.
Fixes: #8583.
Tristan Partin
Daniel Mensinger
Dylan Baker
Xavier Claessens
Paolo Bonzini
Jussi Pakkanen
Jon Turney
Nellie Zhang
Jason Francis