disable multiple-match slice patterns #32161
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Like [a, ..b]. These are typed in a very odd way, which causes some issues for MIR translation. Slice patterns with ignore patterns, e.g. [a, .., b], are allowed (but still gated under `advanced_slice_patterns`).
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But I just fixed them in #31710... Although I would say that slicing should be an lvalue not an rvalue (maybe even checked like a downcast). |
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It should be an lvalue, which would require the parts doing the matching to be rewritten anyway. |
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I will go for stabilize-by-MIR. |
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Like [a, ..b]. These are typed in a very odd way, which causes some issues for
MIR translation.
Slice patterns with ignore patterns, e.g. [a, .., b], are allowed (but still
gated under
advanced_slice_patterns).r? @eddyb