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The examples had some leftovers from Kconfiglib 1.
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_cached_vis is always calculated as a side effect of calculating any
other cached value, and so doubles as a flag for whether an item (symbol
or choice) has any cached values.
If _cached_vis is None for some item, it also indirectly means that no
other item can have any cached values that (actually) depend on the
item, because _cached_vis would have gotten calculated as a side effect
of calculating any such cached value. Therefore, it's safe to stop
recursive invalidation at an item that has _cached_vis None.
Huge speedup for the allyes/noconfig*.py scripts. allnoconfig_simpler.py
went from 2.671 seconds to 1.067 seconds.
The dependency selftests need to be updated too now that
_get_dependent() is gone. The kernel defconfig tests pass even if all
global invalidation is disabled at least (except for the few defconfigs
that don't set MODULES=y), and that's a huge invalidation test. Seems
pretty speedy too, even though there's some redundant work, so maybe
things could be simplified a bit...
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Easier to work with, allowing e.g. direct comparisons with < and >. Make
set_value() take 0, 1, 2 for bool and tristate symbols, and fix other
APIs to match.
Also:
- Add introductions to various concepts in the module docstring.
Document some more attributes. Still TODOs.
- Rename the Config class to Kconfig.
- Escape " and \ in the name of constant symbols when printing them.
Also make the (un)escaping 100% consistent with how the C tools do
it (\ before non-magic character should be unescaped too).
- Clean up the escaping/unescaping code and provide two public
escape()/unescape() functions.
- Export the original MODULES-independent type in orig_type. It's
needed for printing symbols in the reparsable __str__() Kconfig
format with just public APIs.
- Lots of other minor reorganizing and nits all over.
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WIP
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Settings the user value to 'y' does not guarantee that the (actual)
value will become 'y', as the symbol's visibility still acts as an upper
bound on the value.
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This is required for the 'make allnoconfig' tests.
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Disable warnings in allnoconfig_simpler.py instead.
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Also update some comments to reflect optimizations.
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