[−][src]Struct arena::TypedArena
🔬 This is a nightly-only experimental API. (rustc_private
)
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An arena that can hold objects of only one type.
Fields
ptr: Cell<*mut T>
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A pointer to the next object to be allocated.
end: Cell<*mut T>
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A pointer to the end of the allocated area. When this pointer is reached, a new chunk is allocated.
chunks: RefCell<Vec<TypedArenaChunk<T>>>
🔬 This is a nightly-only experimental API. (rustc_private
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A vector of arena chunks.
_own: PhantomData<T>
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Marker indicating that dropping the arena causes its owned
instances of T
to be dropped.
Methods
impl<T> TypedArena<T>
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impl<T> TypedArena<T>
pub fn new() -> TypedArena<T>
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pub fn new() -> TypedArena<T>
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Creates a new TypedArena
.
pub fn alloc(&self, object: T) -> &mut T
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pub fn alloc(&self, object: T) -> &mut T
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Allocates an object in the TypedArena
, returning a reference to it.
pub fn alloc_slice(&self, slice: &[T]) -> &mut [T] where
T: Copy,
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pub fn alloc_slice(&self, slice: &[T]) -> &mut [T] where
T: Copy,
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this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml
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Allocates a slice of objects that are copied into the TypedArena
, returning a mutable
reference to it. Will panic if passed a zero-sized types.
Panics:
- Zero-sized types
- Zero-length slices
fn grow(&self, n: usize)
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fn grow(&self, n: usize)
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Grows the arena.
pub fn clear(&mut self)
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pub fn clear(&mut self)
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Clears the arena. Deallocates all but the longest chunk which may be reused.
fn clear_last_chunk(&self, last_chunk: &mut TypedArenaChunk<T>)
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fn clear_last_chunk(&self, last_chunk: &mut TypedArenaChunk<T>)
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Trait Implementations
impl<T> Drop for TypedArena<T>
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impl<T> Drop for TypedArena<T>
impl<T: Send> Send for TypedArena<T>
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impl<T: Send> Send for TypedArena<T>
Auto Trait Implementations
impl<T> !Sync for TypedArena<T>
impl<T> !Sync for TypedArena<T>
Blanket Implementations
impl<T> From for T
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impl<T> From for T
impl<T, U> Into for T where
U: From<T>,
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impl<T, U> Into for T where
U: From<T>,
impl<T, U> TryFrom for T where
T: From<U>,
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impl<T, U> TryFrom for T where
T: From<U>,
type Error = !
try_from
)The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
try_from
)Performs the conversion.
impl<T> Borrow for T where
T: ?Sized,
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impl<T> Borrow for T where
T: ?Sized,
impl<T, U> TryInto for T where
U: TryFrom<T>,
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impl<T, U> TryInto for T where
U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error
try_from
)The type returned in the event of a conversion error.
fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>
try_from
)Performs the conversion.
impl<T> BorrowMut for T where
T: ?Sized,
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impl<T> BorrowMut for T where
T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
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fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
impl<T> Any for T where
T: 'static + ?Sized,
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impl<T> Any for T where
T: 'static + ?Sized,
fn get_type_id(&self) -> TypeId
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fn get_type_id(&self) -> TypeId
🔬 This is a nightly-only experimental API. (get_type_id
)
this method will likely be replaced by an associated static
Gets the TypeId
of self
. Read more
impl<E> SpecializationError for E
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impl<E> SpecializationError for E
fn not_found<S, T>(trait_name: &'static str, method_name: &'static str) -> E where
T: ?Sized,
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fn not_found<S, T>(trait_name: &'static str, method_name: &'static str) -> E where
T: ?Sized,
🔬 This is a nightly-only experimental API. (rustc_private
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Create an error for a missing method specialization. Defaults to panicking with type, trait & method names. S
is the encoder/decoder state type, T
is the type being encoded/decoded, and the arguments are the names of the trait and method that should've been overridden. Read more
impl<T> Erased for T
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impl<T> Erased for T
impl<T> Send for T where
T: ?Sized,
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impl<T> Send for T where
T: ?Sized,
impl<T> Sync for T where
T: ?Sized,
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impl<T> Sync for T where
T: ?Sized,
impl<T> Erased for T
impl<T> Erased for T