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Inline and remove TypedArena::ensure_capacity.

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It has a single callsite.
This commit is contained in:
Nicholas Nethercote 2023-09-20 07:32:12 +10:00
parent 0001eddb93
commit 55de23ed5d
1 changed files with 7 additions and 12 deletions
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19
compiler/rustc_arena/src/lib.rs
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@ -250,25 +250,20 @@ impl<T> TypedArena<T> {
available_bytes >= additional_bytes available_bytes >= additional_bytes
} }
/// Ensures there's enough space in the current chunk to fit `len` objects.
#[inline]
fn ensure_capacity(&self, additional: usize) {
if !self.can_allocate(additional) {
self.grow(additional);
debug_assert!(self.can_allocate(additional));
}
}
#[inline] #[inline]
unsafe fn alloc_raw_slice(&self, len: usize) -> *mut T { unsafe fn alloc_raw_slice(&self, len: usize) -> *mut T {
assert!(mem::size_of::<T>() != 0); assert!(mem::size_of::<T>() != 0);
assert!(len != 0); assert!(len != 0);
self.ensure_capacity(len); // Ensure the current chunk can fit `len` objects.
if !self.can_allocate(len) {
self.grow(len);
debug_assert!(self.can_allocate(len));
}
let start_ptr = self.ptr.get(); let start_ptr = self.ptr.get();
// SAFETY: `self.ensure_capacity` makes sure that there is enough space // SAFETY: `can_allocate`/`grow` ensures that there is enough space for
// for `len` elements. // `len` elements.
unsafe { self.ptr.set(start_ptr.add(len)) }; unsafe { self.ptr.set(start_ptr.add(len)) };
start_ptr start_ptr
} }