[ACP 362] genericize ptr::from_raw_parts
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Oh, the CI failure helpfully shows that anyone still having a cast gets a nice error suggesting
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@bors r+ rollup |
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…=WaffleLapkin [ACP 362] genericize `ptr::from_raw_parts` This implements rust-lang/libs-team#362 As such, it can partially undo rust-lang#124795 , letting `slice_from_raw_parts` just call `from_raw_parts` again without re-introducing the unnecessary cast to MIR. By doing this it also removes a spurious cast from `str::from_raw_parts`. And I think it does a good job of showing the value of the ACP, since the only thing that needed new turbofishing because of this is inside `ptr::null(_mut)`, but only because `ptr::without_provenance(_mut)` doesn't support pointers to extern types, which it absolutely could (without even changing the implementation).
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Rollup of 7 pull requests Successful merges: - rust-lang#125653 (Migrate `run-make/const-prop-lint` to `rmake.rs`) - rust-lang#125662 (Rewrite `fpic`, `simple-dylib` and `issue-37893` `run-make` tests in `rmake.rs` or ui test format) - rust-lang#125699 (Streamline `x fmt` and improve its output) - rust-lang#125701 ([ACP 362] genericize `ptr::from_raw_parts`) - rust-lang#125723 (Migrate `run-make/crate-data-smoke` to `rmake.rs`) - rust-lang#125733 (Add lang items for `AsyncFn*`, `Future`, `AsyncFnKindHelper`'s associated types) - rust-lang#125734 (ast: Revert a breaking attribute visiting order change) r? `@ghost` `@rustbot` modify labels: rollup
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Rollup merge of rust-lang#125701 - scottmcm:generic-from-raw-parts, r=WaffleLapkin [ACP 362] genericize `ptr::from_raw_parts` This implements rust-lang/libs-team#362 As such, it can partially undo rust-lang#124795 , letting `slice_from_raw_parts` just call `from_raw_parts` again without re-introducing the unnecessary cast to MIR. By doing this it also removes a spurious cast from `str::from_raw_parts`. And I think it does a good job of showing the value of the ACP, since the only thing that needed new turbofishing because of this is inside `ptr::null(_mut)`, but only because `ptr::without_provenance(_mut)` doesn't support pointers to extern types, which it absolutely could (without even changing the implementation).
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This implements rust-lang/libs-team#362
As such, it can partially undo #124795 , letting
slice_from_raw_partsjust callfrom_raw_partsagain without re-introducing the unnecessary cast to MIR.By doing this it also removes a spurious cast from
str::from_raw_parts. And I think it does a good job of showing the value of the ACP, since the only thing that needed new turbofishing because of this is insideptr::null(_mut), but only becauseptr::without_provenance(_mut)doesn't support pointers to extern types, which it absolutely could (without even changing the implementation).