Implement .. syntax for RangeFull as expression
#21947
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Allows the expression `..` (without either endpoint) in general, can be used in slicing syntax `&expr[..]` where we previously wrote `&expr[]`. The old syntax &expr[] is not yet removed or warned for.
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We need a snapshot before we can implement the next step of converting all uses of I don't know if it's too weird to add the deprecation message commented out like that, I could remove that code entirely. |
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⌛ Testing commit 7523914 with merge 5e306de... |
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💔 Test failed - auto-mac-64-opt |
Update tests to change all `&expr[]` to `&expr[..]` to make sure pretty printing passes.
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Thanks for the review! I didn't think about the pretty tests, I've fixed that now. |
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@bors: r+ 7d52 |
Implement step 1 of rust-lang/rfcs#702 Allows the expression `..` (without either endpoint) in general, can be used in slicing syntax `&expr[..]` where we previously wrote `&expr[]`. The old syntax &expr[] is not yet removed or warned for.
Implement step 1 of rust-lang/rfcs#702
Allows the expression
..(without either endpoint) in general, can beused in slicing syntax
&expr[..]where we previously wrote&expr[].The old syntax
&expr[]is not yet removed or warned for, but will be removed later.