feat: support constant folding in StringFormatterChecker.checkers_for_c_type [1/1] #19978
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BobTheBuidler changed the title StringFormatterChecker.checkers_for_c_typeStringFormatterChecker.checkers_for_c_type [1/1] 
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BobTheBuidler commented Oct 2, 2025
| self.msg.requires_int_or_single_byte(context) | ||
| elif isinstance(expr, (StrExpr, BytesExpr)) and len(expr.value) != 1: | ||
| self.msg.requires_int_or_char(context) | ||
| elif isinstance(folded := constant_fold_expr(expr, "<unused>"), str): |
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note to self: can I get cur_mod_id from context?
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I think we need to pass cur_mod_id here for this PR to work properly. I'm just not entirely sure how we can get access to it here.
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JukkaL reviewed Oct 2, 2025
| I forgot I can't use Final for my test here since we don't pass But once we merge #19982 I can do a simple |
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| According to mypy_primer, this change doesn't affect type check results on a corpus of open source code. ✅ |
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This PR implements constant folding in
StringFormatterChecker.checkers_for_c_type