Enum objc_encode::Descriptor

pub enum Descriptor<'a, T: 'a + ?Sized, I: 'a + ?Sized, F: 'a + ?Sized, M: 'a + ?Sized> {
    Primitive(Primitive),
    Pointer(&'a T),
    Array(u32, &'a I),
    Struct(&'a str, &'a F),
    Union(&'a str, &'a M),
}

A type which describes an Encoding.

In a sense, descriptors allow a form of downcasting for Encodings. While accepting an Encoding of any type, through its descriptor we can still know what kind it is and access specific information about it, like the length of an array or the name of a struct. This allows encodings of different types to be compared and interoperate.

Variants

Primitive(Primitive)Pointer(&'a T)Array(u32, &'a I)Struct(&'a str, &'a F)Union(&'a str, &'a M)

Trait Implementations

impl<'a, T: Debug + 'a + ?Sized, I: Debug + 'a + ?Sized, F: Debug + 'a + ?Sized, M: Debug + 'a + ?Sized> Debug for Descriptor<'a, T, I, F, M>

fn fmt(&self, __arg_0: &mut Formatter) -> Result

Formats the value using the given formatter.

impl<'a, T: 'a + ?Sized, I: 'a + ?Sized, F: 'a + ?Sized, M: 'a + ?Sized> Copy for Descriptor<'a, T, I, F, M>

impl<'a, T: 'a + ?Sized, I: 'a + ?Sized, F: 'a + ?Sized, M: 'a + ?Sized> Clone for Descriptor<'a, T, I, F, M>

fn clone(&self) -> Descriptor<'a, T, I, F, M>

Returns a copy of the value.

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

Performs copy-assignment from source.