Struct mun_runtime::gc::UnsafeTypeInfo

#[repr(transparent)]pub struct UnsafeTypeInfo(_);

UnsafeTypeInfo is a type that wraps a NonNull<TypeInfo> and indicates unsafe interior operations on the wrapped TypeInfo. The unsafety originates from uncertainty about the lifetime of the wrapped TypeInfo.

Rust lifetime rules do not allow separate lifetimes for struct fields, but we can make unsafe guarantees about their lifetimes. Thus the UnsafeTypeInfo type is the only legal way to obtain shared references to the wrapped TypeInfo.

Implementations

impl UnsafeTypeInfo

pub fn new(type_info: NonNull<TypeInfo>) -> UnsafeTypeInfo

Constructs a new instance of UnsafeTypeInfo, which will wrap the specified type_info pointer.

All access to the inner value through methods is unsafe.

pub fn into_inner(self) -> NonNull<TypeInfo>

Unwraps the value.

Trait Implementations

impl Clone for UnsafeTypeInfo

fn clone(&self) -> UnsafeTypeInfo

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Copy for UnsafeTypeInfo

impl Debug for UnsafeTypeInfo

fn fmt(&self, f: &mut Formatter) -> Result<(), Error>

Formats the value using the given formatter.

impl Eq for UnsafeTypeInfo

impl Hash for UnsafeTypeInfo

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

Feeds this value into the given [Hasher].

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

Feeds a slice of this type into the given [Hasher].

impl PartialEq<UnsafeTypeInfo> for UnsafeTypeInfo

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

This method tests for self and other values to be equal, and is used by ==.

#[must_use]fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl Send for UnsafeTypeInfo

impl Sync for UnsafeTypeInfo

impl TypeDesc for UnsafeTypeInfo

fn name(&self) -> &str

Returns the name of this type.

fn guid(&self) -> &Guid

Returns the Guid of this type.

fn group(&self) -> TypeGroup

Returns the TypeGroup of this type.

impl TypeFields<UnsafeTypeInfo> for UnsafeTypeInfo

fn fields(&self) -> Vec<(&str, UnsafeTypeInfo)>

Returns the type's fields.

fn offsets(&self) -> &[u16]

Returns the type's fields' offsets.

impl TypeMemory for UnsafeTypeInfo

fn layout(&self) -> Layout

Returns the memory layout of this type.

fn is_stack_allocated(&self) -> bool

Returns whether the memory is stack-allocated.

impl TypeTrace for UnsafeTypeInfo

type Trace = Trace

fn trace(&self, obj: GcPtr) -> <UnsafeTypeInfo as TypeTrace>::Trace

Returns an iterator to iterate over all GC objects that are referenced by the given object.