Struct PointerDef 

#[repr(C)]
pub struct PointerDef {
    pub vtable: &'static PointerVTable,
    pub pointee: Option<&'static Shape>,
    pub weak: Option<fn() -> &'static Shape>,
    pub strong: Option<&'static Shape>,
    pub flags: PointerFlags,
    pub known: Option<KnownPointer>,
}

Describes a pointer — including a vtable to query and alter its state, and the inner shape (the pointee type in the pointer).

Fields

vtable: &'static PointerVTable

vtable for interacting with the pointer

pointee: Option<&'static Shape>

shape of the inner type of the pointer, if not opaque

weak: Option<fn() -> &'static Shape>

shape of the corresponding strong pointer, if this pointer is weak

the layer of indirection is to break the strong <-> weak reference cycle, since consts may not have cycles in their definitions.

strong: Option<&'static Shape>

shape of the corresponding weak pointer, if this pointer is strong

flags: PointerFlags

Flags representing various characteristics of the pointer

known: Option<KnownPointer>

An optional field to identify the kind of pointer

Implementations

impl PointerDef

pub const fn builder() -> PointerDefBuilder

Creates a new PointerDefBuilder with all fields set to None.

pub fn pointee(&self) -> Option<&'static Shape>

Returns shape of the inner type of the pointer, if not opaque

pub fn weak(&self) -> Option<&'static Shape>

Returns shape of the corresponding strong pointer, if this pointer is weak

pub fn strong(&self) -> Option<&'static Shape>

Returns shape of the corresponding weak pointer, if this pointer is strong

pub const fn constructible_from_pointee(&self) -> bool

Whether a new pointer can be constructed from an owned value of its pointee type.

Trait Implementations

impl Clone for PointerDef

fn clone(&self) -> PointerDef

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PointerDef

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

Formats the value using the given formatter.

impl Copy for PointerDef