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## Summary This changeset adds support for precise type-inference and boundness-handling of definitions inside control-flow branches with statically-known conditions, i.e. test-expressions whose truthiness we can unambiguously infer as *always false* or *always true*. This branch also includes: - `sys.platform` support - statically-known branches handling for Boolean expressions and while loops - new `target-version` requirements in some Markdown tests which were now required due to the understanding of `sys.version_info` branches. closes #12700 closes #15034 ## Performance ### `tomllib`, -7%, needs to resolve one additional module (sys) | Command | Mean [ms] | Min [ms] | Max [ms] | Relative | |:---|---:|---:|---:|---:| | `./red_knot_main --project /home/shark/tomllib` | 22.2 ± 1.3 | 19.1 | 25.6 | 1.00 | | `./red_knot_feature --project /home/shark/tomllib` | 23.8 ± 1.6 | 20.8 | 28.6 | 1.07 ± 0.09 | ### `black`, -6% | Command | Mean [ms] | Min [ms] | Max [ms] | Relative | |:---|---:|---:|---:|---:| | `./red_knot_main --project /home/shark/black` | 129.3 ± 5.1 | 119.0 | 137.8 | 1.00 | | `./red_knot_feature --project /home/shark/black` | 136.5 ± 6.8 | 123.8 | 147.5 | 1.06 ± 0.07 | ## Test Plan - New Markdown tests for the main feature in `statically-known-branches.md` - New Markdown tests for `sys.platform` - Adapted tests for `EllipsisType`, `Never`, etc |
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| .. | ||
| annotated.md | ||
| any.md | ||
| literal.md | ||
| literal_string.md | ||
| never.md | ||
| optional.md | ||
| starred.md | ||
| stdlib_typing_aliases.md | ||
| string.md | ||
| union.md | ||
| unsupported_special_forms.md | ||
| unsupported_type_qualifiers.md | ||