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Only support class-based dispatch, all objects have been
converted.
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Do not call update() and Enum.__hash__ a gazillion times; operators
are the same for every instance of the class. In order to access
the class, just mark the methods using a decorator and build
METHODS later using __init_subclass__.
Non-primitive objects are not converted yet to keep the patch small.
They are created a lot less than other objects, especially strings
and booleans.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Do not call update() and Enum.__hash__ a gazillion times; operators
are the same for every instance of the class. In order to access
the class for non-trivial operators, the operators are first marked
using a decorator, and then OPERATORS is built via __init_subclass__.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Do not call update() and Enum.__hash__ a gazillion times; trivial
operators are the same for every instance of the class.
Introduce the infrastructure to build the MRO-resolved operators (so
the outcome same as if one called super().__init__) for each subclass
of InterpreterObject.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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In preparation for moving them to the class, make the operator functions
binary. Adjust the lambdas for trivial operators, and store unbound
methods for non-trivial ones.
Note that this requires adding operators manually for every override,
even subclasses. It's decidedly ugly at this temporary stage; later
it will result in just an extra @InterpreterObject.operator decorator
on the subclasses.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Without this commit, the rewriter and the static introspection tool
crash if `meson.build` contains something like
```meson
if false
foo = not_defined
endif
```
or
```meson
if false
message(not_defined)
endif
```
While it could be argued, that you should not write stuff like this,
this used to raise a `MesonBugException`, which we have to fix.
Fixes #14667
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Replace the variable tracking of `AstInterpreter.assignments`
with a slightly better variable tracking called
`AstInterpreter.cur_assignments`.
We now have a class `UnknownValue` for more explicit handling
of situations that are too complex/impossible.
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And fix all of the issues that pop up once we remove the use of `Any`,
which hides so many problems.
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This reverts commit 9f02d0a3e5a5ffc82256391c244b1af38e41ef78.
It turns out that this does introduce a behavioral change in existing
users of ConfigurationData, which it wasn't supposed to (it was supposed
to preserve behavior there, and add a new *warning* for
EnvironmentVariables).
This breaks projects such as pulseaudio, libvirt, and probably more.
Roll back the change and try again after 1.5.0 is released.
Fixes: #13372
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Only Environment and ConfigurationData are mutable. However, only
ConfigurationData becomes immutable after first use which is
inconsistent.
This deprecates modification after first use of Environment object and
clarify documentation.
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This replaces all of the Apache blurbs at the start of each file with an
`# SPDX-License-Identifier: Apache-2.0` string. It also fixes existing
uses to be consistent in capitalization, and to be placed above any
copyright notices.
This removes nearly 3000 lines of boilerplate from the project (only
python files), which no developer cares to look at.
SPDX is in common use, particularly in the Linux kernel, and is the
recommended format for Meson's own `project(license: )` field
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When performing isinstance checks, an identity comparison is
automatically done, but we don't use isinstance here because we need
strict identity equality *without allowing subtypes*.
Comparing type() == type() is a value comparison, but could produce
effectively the same results as an identity comparison, usually, despite
being semantically off. pycodestyle learned to detect this and warn you
to do strict identity comparison.
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This is currently only enabled when running unit tests to facilitate
writing failing unit tests.
Fixes: #11394
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A bunch of files have several T.TYPE_CHECKING blocks that each do some
things which could just as well be done once, with a single `if`
statement. Make them do so.
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Use a derived type when passing `subproject` around, so that mypy knows
it's actually a SubProject, not a str. This means that passing anything
other than a handle to the interpreter state's subproject attribute
becomes a type violation, specifically when the order of the *four*
different str arguments is typoed.
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This is the final refactoring for extracting the bultin object
logic out of Interpreterbase. I decided to do both arrays and
dicts in one go since splitting it would have been a lot more
confusing.
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discovered via flake8 --select E303
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Another commit in my quest to rid InterpreterBase from all higher
level object processing logic.
Additionally, there is a a logic change here, since `str.join` now
uses varargs and can now accept more than one argument (and supports
list flattening).
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This assert causes several type checkers (both mypy and pyright) to
force `obj` to be a base `HoldableObject` instead of the specialized
object. Since the check itself may still be valuable as we don't have
fully type annotation coverage it's simply been removed when type
checking to aid in type specialization.
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This commit introduces a new type of `HoldableObject`: The
`SecondLevelHolder`. The primary purpose of this class is
to handle cases where two (or more) `HoldableObject`s are
stored at the same time (with one default object). The
best (and currently only) example here is the `BothLibraries`
class.
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As a side-effect from #8885 `find_program()` returns now `Executable`
objects when `meson.override_find_program` is called with an
executable target. To resolve this conflict the missing methods
from `ExternalProgram` are added to `BuildTarget`.
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