add repr(transparent) to IoSliceMut where missing
#63013
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@bors r+ rollup |
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Centril
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add `repr(transparent)` to `IoSliceMut` where missing tried using `IoSliceMut` in FFI, got `improper_ctypes` warning. according to the docs: `IoSliceMut` is "guaranteed to be ABI compatible with the `iovec` type" so it should be usable in FFI. `IoSlice` is also `repr(transparent)` for every platform where these types contain `iovec`-like types. vxworks also has `IoSliceMut` as transparent so its not even consistently one or the other. no comment about this next to the types or in the PR that introduced the types, so assuming this was just missed. r? @sfackler
Centril
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Jul 26, 2019
add `repr(transparent)` to `IoSliceMut` where missing tried using `IoSliceMut` in FFI, got `improper_ctypes` warning. according to the docs: `IoSliceMut` is "guaranteed to be ABI compatible with the `iovec` type" so it should be usable in FFI. `IoSlice` is also `repr(transparent)` for every platform where these types contain `iovec`-like types. vxworks also has `IoSliceMut` as transparent so its not even consistently one or the other. no comment about this next to the types or in the PR that introduced the types, so assuming this was just missed. r? @sfackler
Mark-Simulacrum
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Jul 27, 2019
add `repr(transparent)` to `IoSliceMut` where missing tried using `IoSliceMut` in FFI, got `improper_ctypes` warning. according to the docs: `IoSliceMut` is "guaranteed to be ABI compatible with the `iovec` type" so it should be usable in FFI. `IoSlice` is also `repr(transparent)` for every platform where these types contain `iovec`-like types. vxworks also has `IoSliceMut` as transparent so its not even consistently one or the other. no comment about this next to the types or in the PR that introduced the types, so assuming this was just missed. r? @sfackler
Centril
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to Centril/rust
that referenced
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Jul 27, 2019
add `repr(transparent)` to `IoSliceMut` where missing tried using `IoSliceMut` in FFI, got `improper_ctypes` warning. according to the docs: `IoSliceMut` is "guaranteed to be ABI compatible with the `iovec` type" so it should be usable in FFI. `IoSlice` is also `repr(transparent)` for every platform where these types contain `iovec`-like types. vxworks also has `IoSliceMut` as transparent so its not even consistently one or the other. no comment about this next to the types or in the PR that introduced the types, so assuming this was just missed. r? @sfackler
bors
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Jul 27, 2019
Rollup of 6 pull requests Successful merges: - #62423 (Fix cycle error with existential types) - #62979 (Cleanup save-analysis JsonDumper) - #62982 (Don't access a static just for its size and alignment) - #63013 (add `repr(transparent)` to `IoSliceMut` where missing) - #63014 (Stop bare trait lint applying to macro call sites) - #63036 (Add lib section to rustc_lexer's Cargo.toml) Failed merges: r? @ghost
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tried using
IoSliceMutin FFI, gotimproper_ctypeswarning.according to the docs:
IoSliceMutis "guaranteed to be ABI compatible with theiovectype" so it should be usable in FFI.IoSliceis alsorepr(transparent)for every platform where these types containiovec-like types.vxworks also has
IoSliceMutas transparent so its not even consistently one or the other.no comment about this next to the types or in the PR that introduced the types, so assuming this was just missed.
r? @sfackler