rune::core::object::tagged

Struct Gc

pub(crate) struct Gc<T> {
    ptr: *const u8,
    _data: PhantomData<T>,
}

Expand description

This type has two meanings, it is both a value that is tagged as well as something that is managed by the GC. It is intended to be pointer sized, and have a lifetime tied to the context which manages garbage collections. A Gc can be reinterpreted as any type that shares the same tag.

Fields§

§ptr: *const u8§_data: PhantomData<T>

Struct GcCopy item path

Fields§

Implementations§

impl<'ob> Gc<ListType<'ob>>

pub(crate) fn elements(self) -> ElemIter<'ob> ⓘ

pub(crate) fn conses(self) -> ConsIter<'ob> ⓘ

impl<'ob> Gc<ObjectType<'ob>>

pub(crate) fn as_list(self) -> Result<ElemIter<'ob>>

impl<T> Gc<T>

const fn new(ptr: *const u8) -> Self

unsafe fn from_ptr<U>(ptr: *const U, tag: Tag) -> Self

fn untag_ptr(self) -> (*const u8, Tag)

fn get_tag(self) -> Tag

pub(crate) fn into_raw(self) -> RawObj

pub(in core) fn into_ptr( self, ) -> *const u8

pub(crate) unsafe fn from_raw(raw: RawObj) -> Self

pub(crate) unsafe fn from_raw_ptr(raw: *mut u8) -> Self

pub(crate) fn ptr_eq<U>(self, other: Gc<U>) -> bool

pub(crate) fn as_obj(&self) -> Gc<ObjectType<'_>>

impl<'ob, T> Gc<T>where T: 'ob,

pub(crate) fn as_obj_copy(self) -> Gc<ObjectType<'ob>>

impl<T> Gc<T>where Gc<T>: Untag<T>,

pub(crate) fn untag(self) -> T

impl<'ob> Gc<ObjectType<'ob>>

pub(crate) fn try_from_option<T, E>( value: Gc<ObjectType<'ob>>, ) -> Result<Option<T>, E>where Gc<ObjectType<'ob>>: TryInto<T, Error = E>,

pub(crate) fn is_nil(self) -> bool

impl<'ob> Gc<ObjectType<'ob>>

pub(crate) fn as_cons_pair( self, ) -> Result<(Symbol<'ob>, ObjectType<'ob>), TypeError>

impl<'ob> Gc<FunctionType<'ob>>

pub(crate) fn as_cons_pair( self, ) -> Result<(Symbol<'ob>, FunctionType<'ob>), TypeError>

impl Gc<NumberType<'_>>

pub(crate) fn val(self) -> NumberValue

Methods from Deref<Target = Cons>§

pub(crate) fn elements(&self) -> ElemIter<'_> ⓘ

pub(crate) fn conses(&self) -> ConsIter<'_> ⓘ

pub(super) fn display_walk( &self, f: &mut Formatter<'_>, seen: &mut HashSet<*const u8>, ) -> Result

fn is_backref(&self, seen: &mut HashSet<*const u8>) -> bool

Methods from Deref<Target = GcHeap<ConsInner>>§

const NULL: *mut u8 = {0x0 as *mut u8}

const EMTPTY: AtomicPtr<u8> = _

fn header(&self) -> &GcHeader

pub(in core) fn forward( &self, fwd_ptr: NonNull<u8>, )

pub(in core) fn allocation_state( &self, ) -> AllocState

fn is_marked(&self) -> bool

Trait Implementations§

impl<T: Clone> Clone for Gc<T>

fn clone(&self) -> Gc<T>

fn clone_from(&mut self, source: &Self)

impl<'new, T, U, E> CloneIn<'new, U> for Gc<T>where T: WithLifetime<'new, Out = U>, Gc<U>: TryFrom<Gc<ObjectType<'new>>, Error = E> + 'new,

fn clone_in<const C: bool>(&self, bk: &'new Block<C>) -> Gc<U>

impl Default for Gc<ListType<'_>>

fn default() -> Self

impl Default for Gc<ObjectType<'_>>

fn default() -> Self

impl<T> Hash for Gc<T>

fn hash<H: Hasher>(&self, state: &mut H)

fn hash_slice<H>(data: &[Self], state: &mut H)where H: Hasher, Self: Sized,

impl<'ob> IntoIterator for Gc<ListType<'ob>>

type Item = <ElemIter<'ob> as Iterator>::Item

type IntoIter = ElemIter<'ob>

fn into_iter(self) -> Self::IntoIter

impl<T> IntoObject for Gc<T>

type Out<'ob> = ObjectType<'ob>

fn into_obj<const C: bool>(self, _block: &Block<C>) -> Gc<Self::Out<'_>>

impl Markable for Gc<FunctionType<'_>>

type Value = Gc<FunctionType<'_>>

fn move_value(&self, to_space: &Bump) -> Option<(Self::Value, bool)>

impl Markable for Gc<ListType<'_>>

type Value = Gc<ListType<'_>>

fn move_value(&self, to_space: &Bump) -> Option<(Self::Value, bool)>

impl Markable for Gc<ObjectType<'_>>

type Value = Gc<ObjectType<'_>>

fn move_value(&self, to_space: &Bump) -> Option<(Self::Value, bool)>

impl<T> Markable for Gc<T>where Self: Untag<T> + Copy, T: Markable<Value = T> + TagType<Out = T>,

type Value = Gc<T>

fn move_value(&self, to_space: &Bump) -> Option<(Self::Value, bool)>

impl PartialEq<&str> for Gc<ObjectType<'_>>

fn eq(&self, other: &&str) -> bool

fn ne(&self, other: &Rhs) -> bool

impl PartialEq<Symbol<'_>> for Gc<ObjectType<'_>>

Struct Gc

impl<'ob, T> Gc<T>
where T: 'ob,

impl<T> Gc<T>
where Gc<T>: Untag<T>,

pub(crate) fn try_from_option<T, E>( value: Gc<ObjectType<'ob>>, ) -> Result<Option<T>, E>
where Gc<ObjectType<'ob>>: TryInto<T, Error = E>,

const NULL: mut u8 = {0x0 as mut u8}

impl<'new, T, U, E> CloneIn<'new, U> for Gc<T>
where T: WithLifetime<'new, Out = U>, Gc<U>: TryFrom<Gc<ObjectType<'new>>, Error = E> + 'new,

fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

impl<T> Markable for Gc<T>
where Self: Untag<T> + Copy, T: Markable<Value = T> + TagType<Out = T>,