impl string check for patch #2313#2333
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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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Summary
Fixes part of #2313
Added a call-time check when the callee is unittest.mock.patch (detected via the _patcher instance type):
finds the longest importable module prefix
resolves the remaining components as attributes
emits the usual missing import / missing attribute errors at the string literal location
Test Plan
Added an integration test covering the missing-attribute case: with patch("main.foo") now reports
No attribute \foo
in modulemain``