Struct glib::subclass::types::TypeData

source ·
pub struct TypeData { /* private fields */ }
Expand description

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

Implementations§

source§

impl TypeData

source

pub fn type_(&self) -> Type

Returns the type ID.

source

pub fn parent_class(&self) -> gpointer

Returns a pointer to the native parent class.

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

source

pub fn parent_interface<I: IsInterface>(&self) -> gpointer

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.

source

pub fn class_data<T: Any + Send + Sync + 'static>( &self, type_: Type, ) -> Option<&T>

Returns a pointer to the class implementation specific data.

This is used for class implementations to store additional data.

source

pub unsafe fn class_data_mut<T: Any + Send + Sync + 'static>( &mut self, type_: Type, ) -> Option<&mut T>

Gets a mutable reference of the class implementation specific data.

§Safety

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

source

pub unsafe fn set_class_data<T: Any + Send + Sync + 'static>( &mut self, type_: Type, data: T, )

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_.

source

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§

Auto Trait Implementations§

Blanket Implementations§

source§

impl<T> Any for T
where T: 'static + ?Sized,

source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
source§

impl<T> Borrow<T> for T
where T: ?Sized,

source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
source§

impl<T> BorrowMut<T> for T
where T: ?Sized,

source§

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
source§

impl<T> From<T> for T

source§

fn from(t: T) -> T

Returns the argument unchanged.

source§

impl<T, U> Into<U> for T
where U: From<T>,

source§

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

source§

impl<T, U> TryFrom<U> for T
where U: Into<T>,

§

type Error = Infallible

The type returned in the event of a conversion error.
source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
source§

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

§

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.