New semantic analyzer: Support builtin typing aliases#6358
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ilevkivskyi merged 23 commits intopython:masterfrom Feb 12, 2019
Merged
New semantic analyzer: Support builtin typing aliases#6358ilevkivskyi merged 23 commits intopython:masterfrom
ilevkivskyi merged 23 commits intopython:masterfrom
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February 7, 2019 17:52
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This moves us very close to being able to support full builtins stubs! Looks good, just left a few minor comments. Feel free to merge after you've addressed them.
| # Tuple is special because it is involved in builtin import cycle | ||
| # and may be not ready when used. | ||
| sym = self.api.lookup_fully_qualified_or_none('builtins.tuple') | ||
| if not sym or isinstance(sym.node, PlaceholderNode): |
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What happens if we don't use the correct fixture that defined tuple? Will this still generate a reasonable error message?
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I fixed this to report a reasonable error, and added a test.
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Fixes #6297
This adds support for real typeshed stubs that define dummy aliases like
typing.List,typing.Dict, etc. This also fixes couple related issues, so that builtin SCC is almost clean (the two remaining errors are #6295 and #6357).Most notably, this PR introduces some re-ordering of targets in builtin SCC, removing this reordering requires some non-trivial work (namely #6356, #6355, and deferring targets from
named_type()).