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feat: hide allocator functions when unusable #754

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Merged
alejandro-vaz merged 3 commits into from
Oct 21, 2026
Merged

feat: hide allocator functions when unusable #754

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7020f4a
feat: hide allocator functions when unusable
cooronx Oct 9, 2026
c2c7c39
feat: use syntax macro for allocator function visibility
cooronx Oct 21, 2026
674619c
fix: put allocator constructors into the origin impl block
cooronx Oct 21, 2026
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9 changes: 6 additions & 3 deletions src/lib.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -1350,15 +1350,17 @@ impl<Item, const INLINE: usize, Heap: Allocator> SmallVec<Item, INLINE, Heap> {
}
}

pub const fn new_in(allocator: Heap) -> SmallVec<Item, INLINE, Heap> {
#[cfg_attr(feature = "allocator-api", syntax(pub))]
const fn new_in(allocator: Heap) -> SmallVec<Item, INLINE, Heap> {
Self {
length: LocatedLength::new(0, false),
raw: RawSmallVec::new(),
allocator
}
}

pub fn try_with_capacity_in(capacity: usize, allocator: Heap) -> Result<Self, SmallVecError> {
#[cfg_attr(feature = "allocator-api", syntax(pub))]
fn try_with_capacity_in(capacity: usize, allocator: Heap) -> Result<Self, SmallVecError> {
let mut this = Self::new_in(allocator);
if capacity > Self::inline_size() && !Self::IS_ZST {
// SAFETY: we checked all the preconditions
Expand All @@ -1373,7 +1375,8 @@ impl<Item, const INLINE: usize, Heap: Allocator> SmallVec<Item, INLINE, Heap> {
Ok(this)
}

pub fn with_capacity_in(capacity: usize, allocator: Heap) -> Self {
#[cfg_attr(feature = "allocator-api", syntax(pub))]
fn with_capacity_in(capacity: usize, allocator: Heap) -> Self {
Self::try_with_capacity_in(capacity, allocator).unwrap_or_else(SmallVecError::handle)
}
}
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