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Suppressing binary operation lint message #1319
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Ran tests and all pass. |
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Actually, don't suppress it wholesale. If type is unknown it should be considered compatible. There are always going to be cases when we can't figure out some type. |
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The problem is that we are getting cases where we infer the wrong thing (not just nothing), and then lint based on that behavior. We added this with the assumption that we always get the builtin types right, but we have cases where our backup cases in some places cause lint messages in others. I'm not sure if we want to surface all of these false positives... |
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…e types (microsoft#1254)" This is due to the fact that current operator type checking is too inaccurate to give diagnostics - operator overloading is a challenge to face for the future This reverts commit 753220f.
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* Revert "Adding diagnostic error on binary operations with incompatible types (microsoft#1254)" This is due to the fact that current operator type checking is too inaccurate to give diagnostics - operator overloading is a challenge to face for the future This reverts commit 753220f.
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Fixes #1311
when we have
we first evaluate
we say that pathlib.Path.home() is an unknown type, so doing this operation we get a string as a result.
Then we do
which it thinks is an unsupported operand.
@jakebailey and I discussed, and we concluded there was not much we could do but just suppress this diagnostic for now. Operator overloading will continue to be an issue for this diagnostic.