Danilo Krummrich 93e602310f rust: alloc: implement collect for IntoIter ...

Currently, we can't implement `FromIterator`. There are a couple of
issues with this trait in the kernel, namely:

  - Rust's specialization feature is unstable. This prevents us to
    optimize for the special case where `I::IntoIter` equals `Vec`'s
    `IntoIter` type.
  - We also can't use `I::IntoIter`'s type ID either to work around this,
    since `FromIterator` doesn't require this type to be `'static`.
  - `FromIterator::from_iter` does return `Self` instead of
    `Result<Self, AllocError>`, hence we can't properly handle allocation
    failures.
  - Neither `Iterator::collect` nor `FromIterator::from_iter` can handle
    additional allocation flags.

Instead, provide `IntoIter::collect`, such that we can at least convert
`IntoIter` into a `Vec` again.

Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Reviewed-by: Benno Lossin <benno.lossin@proton.me>
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
Link: https://lore.kernel.org/r/20241004154149.93856-19-dakr@kernel.org
[ Added newline in documentation, changed case of section to be
  consistent with an existing one, fixed typo. - Miguel ]
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>

2024-10-15 23:10:32 +02:00

..

allocator_test.rs

rust: alloc: implement KVmalloc allocator

2024-10-15 22:56:59 +02:00

allocator.rs

rust: alloc: implement KVmalloc allocator

2024-10-15 22:56:59 +02:00

kbox.rs

rust: alloc: implement kernel Box

2024-10-15 22:56:59 +02:00

kvec.rs

rust: alloc: implement collect for IntoIter

2024-10-15 23:10:32 +02:00

layout.rs

rust: alloc: introduce ArrayLayout

2024-10-15 22:56:59 +02:00

vec_ext.rs

rust: avoid unused import warning in rusttest

2024-06-11 23:33:28 +02:00