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Since they will never be used outside of the build directory, they do
not need to literally contain the .o files, and references will be
sufficient.
This covers a major use of object libraries, which is that the static
library would potentially take up a lot of space by including another
copy of every .o file.
Fixes #9292
Fixes #8057
Fixes #2129
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backend/vs: Parallelize compilation inside one project
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This replaces the absolute hack of using
```
install_subdir('nonexisting', install_dir: 'share')
```
which requires you to make sure you don't accidentally or deliberately
have a completely different directory with the same name in your source
tree that is full of files you don't want installed. It also avoids
splitting the name in two and listing them in the wrong order.
You can also set the install mode of each directory component by listing
them one at a time in order, and in fact create nested structures at
all.
Fixes #1604
Properly fixes #2904
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UseMultiToolTask allows parallelism inside a project, without requiring cl.exe
internal multi-threading (which meson generated projects currently can't use,
mainly due to specifying output filenames for each object).
TODO:
- think about making behaviour conditional on msbuild version / add comment
why not
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Note that a few minor details of the output changed for some target types. I
think I called them out with XXXs in the code for now.
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The main reason for this move is to make it easier to merge the copies of
project generation. But as far as I can tell, the Microsoft.Cpp.props import
also belongs before the ItemDefinitionGroup.
Originally the order seems to have been that way, but 431a9ea664 changed it in
the course of other changes.
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Partially-Fixes: #1799
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discovered via flake8 --select E303
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Otherwise changes to a dependency don't propogate
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Instead of open coding it. This simplifies things, and fixes some
missing functionality
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Add type annotations and type checking to meson main
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This patch adds a new meson built-in option for cython, allowing it to
target C++ instead of C as the intermediate language. This can, of
course, be done on a per-target basis using the `override_options`
keyword argument, or for the entire project in the project function.
There are some things in this patch that are less than ideal. One of
them is that we have to add compilers in the build layer, but there
isn't a better place to do it because of per target override_options.
There's also some design differences between Meson and setuptools, in
that Meson only allows options on a per-target rather than a per-file
granularity.
Fixes #9015
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This really is more of a struct than a dict, as the types are disjoint
and they are internally handled, (ie, not from user input). This cleans
some things up, in addition I spotted a bug in the ModuleState where the
dict with the version and license is passed to a field that expects just
the version string.
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backends/vs: Set ObjectFileName for generated sources.
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When setup creates a Visual Studio environment, a message is logged
which contains a path to the build directory. Typically, this path is
converted to a relative path prior to printing. If the path cannot be
converted to a relative path (e.g., because buildpath is on a different
drive from the cwd), print out the full path instead of failing with an
unhandled exception.
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When a static library B to a static library A with generated sources, B
directly references the object file corresponding to the generated source in
A. For that reference in B object_filename_from_source() is used. But A did
not specify the object file name, ending up with cl.exe's default.
Fixes: #9235
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Since we changed to using a json file to avoid over long command lines
we created a situation where the generated files may not be ready when
the depscan happens. To avoid that, we need to add all of the generated
sources as order deps.
Fixes: #9258
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Fixes: #9263
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Alias commands did not work with the vs backend, due to trying to access
target.command[0] with an empty command. Fix this by just not emitting a
CustomBuild node for alias targets - the project references are enough to
trigger the necessary actions.
Fixes: #9247
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Signed-off-by: Filipe LaÃns <lains@riseup.net>
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A run_target object created in a subdir/meson.build always has a ninja
rule name of "name", not "subdir/name".
Fixes #9175
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This caught a couple of cases of us doing:
```python
for i in range(len(x)):
v = x[i]
```
which are places to use enumerate instead.
It also caught a couple of cases of:
```python
assert len(x) == len(y)
for i in range(len(x)):
xv = x[i]
yv = y[i]
```
Which should instead be using zip()
```python
for xv, yv in zip(x, y):
...
```
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We have a lot of these. Some of them are harmless, if unidiomatic, such
as `if (condition)`, others are potentially dangerous `assert(...)`, as
`assert(condtion)` works as expected, but `assert(condition, message)`
will result in an assertion that never triggers, as what you're actually
asserting is `bool(tuple[2])`, which will always be true.
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This didn't actually catch what it's supposed to, which is cases of:
```python
for x in dict.keys():
y = dict[x]
```
But it did catch one unnecessary use of keys(), and one case where we
were doing something in an inefficient way. I've rewritten:
```python
if name.value in [x.value for x in self.kwargs.keys() if isinstance(x, IdNode)]:
```
as
``python
if any((isinstance(x, IdNode) and name.value == x.value) for x in self.kwargs):
```
Which avoids doing two iterations, one to build the list, and a
second to do a search for name.value in said list, which does a single
short circuiting walk, as any returns as soon as one check returns True.
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Which is easier to reason about as a human, and narrower, allowing for
more accurate type checking.
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There are cases in the backend like this:
```python
e = ExecutableSerialisation(...)
e.verbose = v
```
setting it from the initializer is cleaner.
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This parameter isn't used, at all, so just remove it
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I needed to figure this out for the purposes of annotating CleanTrees
anyway.
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The baseclass has code that assumes said method exists, and it really
doesn't seem to do anything ninja specific, so move it to the generic
backend.
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Currently, we write each file to the command line, but this can result in
situations where the number of files passed exceeds OS imposed command
line limits. For compilers, we solve this with response files. For
depscan I've chosen to use a JSON list instead. JSON has several
advantages in that it's standardized, there's a built-in python module
for it, and it's familiar. I've also chosen to always use the JSON file
instead of having a heuristic to decide between JSON and not JSON,
while there may be a small performance trade off here, keeping the
implementation simple with only one path is wort it.
Fixes #9129
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