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Inline single-use unsafe function + simplify related unsafe + fix typo #189

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Inline single-use unsafe function + simplify related unsafe + fix typo #189

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13 changes: 3 additions & 10 deletions src/lib.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -1018,21 +1018,14 @@ fn parse_headers_iter<'a>(
) -> Result<usize> {
parse_headers_iter_uninit(
/* SAFETY: see `parse_headers_iter_uninit` guarantees */
unsafe { deinit_slice_mut(headers) },
unsafe { &mut *(headers as *mut &mut _ as *mut &mut [MaybeUninit<_>]) },
bytes,
config,
)
}

unsafe fn deinit_slice_mut<'a, 'b, T>(s: &'a mut &'b mut [T]) -> &'a mut &'b mut [MaybeUninit<T>] {
let s: *mut &mut [T] = s;
let s = s as *mut &mut [MaybeUninit<T>];
&mut *s
}
unsafe fn assume_init_slice<T>(s: &mut [MaybeUninit<T>]) -> &mut [T] {
let s: *mut [MaybeUninit<T>] = s;
let s = s as *mut [T];
&mut *s
&mut *(s as *mut _ as *mut [_])
}

#[derive(Clone, Debug, Default)]
Expand All @@ -1043,7 +1036,7 @@ struct HeaderParserConfig {
ignore_invalid_headers: bool,
}

/* Function which parsers headers into uninitialized buffer.
/* Function which parses headers into uninitialized buffer.
*
* Guarantees that it doesn't write garbage, so casting
* &mut &mut [Header] -> &mut &mut [MaybeUninit<Header>]
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