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Make all the flexarray helpers inline
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The conversions between fixed and dynamically sized forms are essentially
type-level transforms which should have trivial implementations in terms
of generated code, so there's no reason not to make them inline.
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jsgf authored and emilio committed Apr 1, 2024
1 parent 4595f1f commit 96604d6
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25 changes: 25 additions & 0 deletions bindgen-tests/tests/expectations/tests/flexarray.rs

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5 changes: 5 additions & 0 deletions bindgen/codegen/mod.rs
Original file line number Diff line number Diff line change
Expand Up @@ -2702,13 +2702,15 @@ impl CompInfo {

(
quote! {
#[inline]
pub fn fixed(&self) -> (& #sized_ty_for_impl, usize) {
unsafe {
let (ptr, len) = (self as *const Self).to_raw_parts();
(&*(ptr as *const #sized_ty_for_impl), len)
}
}

#[inline]
pub fn fixed_mut(&mut self) -> (&mut #sized_ty_for_impl, usize) {
unsafe {
let (ptr, len) = (self as *mut Self).to_raw_parts();
Expand All @@ -2728,6 +2730,7 @@ impl CompInfo {
/// Convert a mutable sized prefix to an unsized structure with the given length.
///
/// SAFETY: Underlying storage is initialized up to at least `len` elements.
#[inline]
pub unsafe fn flex_ref_mut(&mut self, len: usize) -> &mut #dst_ty_for_impl {
// SAFETY: Reference is always valid as pointer. Caller is guaranteeing `len`.
#flex_ref_mut_inner
Expand All @@ -2737,6 +2740,7 @@ impl CompInfo {
///
/// NOTE: lifetime of returned reference is not tied to any underlying storage.
/// SAFETY: `ptr` is valid. Underlying storage is fully initialized up to at least `len` elements.
#[inline]
pub unsafe fn flex_ptr<'unbounded>(ptr: *const Self, len: usize) -> &'unbounded #dst_ty_for_impl {
#flex_ptr_inner
}
Expand All @@ -2748,6 +2752,7 @@ impl CompInfo {
///
/// NOTE: lifetime of returned reference is not tied to any underlying storage.
/// SAFETY: `ptr` is valid. Underlying storage has space for at least `len` elements.
#[inline]
pub unsafe fn flex_ptr_mut<'unbounded>(
ptr: *mut Self,
len: usize,
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