Trait glib::object::Downcast

pub trait Downcast<T> {
    // Required methods
    fn downcast(self) -> Result<T, Self>
       where Self: Sized;
    unsafe fn downcast_unchecked(self) -> T;
}

Downcasts support.

Required Methods

fn downcast(self) -> Result<T, Self>

where Self: Sized,

Tries to downcast to T.

Returns Ok(T) if the instance implements T and Err(Self) otherwise.

unsafe fn downcast_unchecked(self) -> T

Downcasts to T unconditionally.

Panics if compiled with debug_assertions and the instance doesn’t implement T.

Implementors

impl<Super: Upcast<Super>, Sub: Upcast<Super>> Downcast<Sub> for Super