Struct TypeData

pub struct TypeData { /* private fields */ }

Type-specific data that is filled in during type creation.

Implementations

impl TypeData

pub const fn new() -> TypeData

pub fn type_(&self) -> Type

Returns the type ID.

pub fn parent_class(&self) -> *mut c_void

Returns a pointer to the native parent class.

This is used for chaining up to the parent class’ implementation of virtual methods.

pub fn parent_interface<I>(&self) -> *mut c_void

where I: IsInterface,

Returns a pointer to the native parent interface struct for interface type_.

This is used for chaining up to the parent interface’s implementation of virtual methods.

Panics

This function panics if the type to which the TypeData belongs does not implement the given interface or was not registered yet.

pub fn class_data<T>(&self, type_: Type) -> Option<&T>

where T: Any + Send + Sync + 'static,

Returns a pointer to the class implementation specific data.

This is used for class implementations to store additional data.

pub unsafe fn class_data_mut<T>(&mut self, type_: Type) -> Option<&mut T>

where T: Any + Send + Sync + 'static,

Gets a mutable reference of the class implementation specific data.

Safety

This can only be used while the type is being initialized.

pub unsafe fn set_class_data<T>(&mut self, type_: Type, data: T)

where T: Any + Send + Sync + 'static,

Sets class specific implementation data.

Safety

This can only be used while the type is being initialized.

Panics

If the class_data already contains a data for the specified type_.

pub fn impl_offset(&self) -> isize

Returns the offset of the private implementation struct in bytes relative to the beginning of the instance struct.

Trait Implementations

impl Default for TypeData

fn default() -> TypeData

Returns the “default value” for a type.

impl Send for TypeData

impl Sync for TypeData