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typing: create an @overload of `phasecache` ctor to handle the copy case...
typing: create an @overload of `phasecache` ctor to handle the copy case In `phasecache.copy()`, it calls `self.__class__(None, None, _load=False)`, but the constuctor is typed to take a non-None repository. For the `_load=False` case, all args are ignored (and the copy function itself populates the attrs on the new object), so this isn't an error. For the default `_load=True` case, it needs a non-None repository. This is the simplest way to handle that duality. The reason this wasn't being detected is because pytype is confused by the interface decorators on the `localrepository` class, and is inferring the whole class as `Any`. (See 3e9a660b074a or c1d7ac70980b) Therefore, the type hint of `localrepo.localrepository` here was also effectively `Any`, which disabled the type checking entirely. This is the first foray into using `typing_extensions` to unlock future typing features. I think this is safe and reasonable because 1) it is only imported in the type checking phase (so no need to vendor our own copy), and 2) pytype has its own copy of `typing_extensions` bundled with it, so no need to alter the test environment. When run with a version of python that supports the symbol(s) natively, `typing_extensions` simply re-exports from `typing`, so there shouldn't be any future headaches with this.
Georges Racinet on incendie.racinet.fr - - Load All Authors

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revlog.py
62 lines | 2.3 KiB | text/x-python | PythonLexer
/ mercurial / testing / revlog.py
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import unittest
# picked from test-parse-index2, copied rather than imported
# so that it stays stable even if test-parse-index2 changes or disappears.
data_non_inlined = (
b'\x00\x00\x00\x01\x00\x00\x00\x00\x00\x01D\x19'
b'\x00\x07e\x12\x00\x00\x00\x00\x00\x00\x00\x00\xff\xff\xff\xff'
b'\xff\xff\xff\xff\xd1\xf4\xbb\xb0\xbe\xfc\x13\xbd\x8c\xd3\x9d'
b'\x0f\xcd\xd9;\x8c\x07\x8cJ/\x00\x00\x00\x00\x00\x00\x00\x00\x00'
b'\x00\x00\x00\x00\x00\x00\x01D\x19\x00\x00\x00\x00\x00\xdf\x00'
b'\x00\x01q\x00\x00\x00\x01\x00\x00\x00\x01\x00\x00\x00\x00\xff'
b'\xff\xff\xff\xc1\x12\xb9\x04\x96\xa4Z1t\x91\xdfsJ\x90\xf0\x9bh'
b'\x07l&\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'
b'\x00\x01D\xf8\x00\x00\x00\x00\x01\x1b\x00\x00\x01\xb8\x00\x00'
b'\x00\x01\x00\x00\x00\x02\x00\x00\x00\x01\xff\xff\xff\xff\x02\n'
b'\x0e\xc6&\xa1\x92\xae6\x0b\x02i\xfe-\xe5\xbao\x05\xd1\xe7\x00'
b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01F'
b'\x13\x00\x00\x00\x00\x01\xec\x00\x00\x03\x06\x00\x00\x00\x01'
b'\x00\x00\x00\x03\x00\x00\x00\x02\xff\xff\xff\xff\x12\xcb\xeby1'
b'\xb6\r\x98B\xcb\x07\xbd`\x8f\x92\xd9\xc4\x84\xbdK\x00\x00\x00'
b'\x00\x00\x00\x00\x00\x00\x00\x00\x00'
)
from ..revlogutils.constants import REVLOGV1
try:
from ..cext import parsers as cparsers # pytype: disable=import-error
except ImportError:
cparsers = None
try:
from ..rustext.revlog import ( # pytype: disable=import-error
Index as RustIndex,
)
except ImportError:
RustIndex = None
@unittest.skipIf(
cparsers is None,
'The C version of the "parsers" module is not available. It is needed for this test.',
)
class RevlogBasedTestBase(unittest.TestCase):
def parseindex(self, data=None):
if data is None:
data = data_non_inlined
return cparsers.parse_index2(data, False)[0]
@unittest.skipIf(
RustIndex is None,
'The Rust index is not available. It is needed for this test.',
)
class RustRevlogBasedTestBase(unittest.TestCase):
def parserustindex(self, data=None):
if data is None:
data = data_non_inlined
# not inheriting RevlogBasedTestCase to avoid having a
# `parseindex` method that would be shadowed by future subclasses
# this duplication will soon be removed
return RustIndex(data, REVLOGV1)