Enum ExtIterItem 

#[non_exhaustive]
pub enum ExtIterItem<'a> {
    Descriptor(AnyDescriptor<'a>),
    CustomExtension {
        tag_extension: u8,
        value: Box<dyn ExtensionObject>,
    },
}

Item produced by DescriptorLoop::iter_with_extensions.

Extends AnyDescriptor with a third arm for custom-registered extension bodies whose descriptor_tag_extension is recognised by an ExtensionRegistry. The value field can be downcast to the concrete type via downcast_ref on the value (see ExtensionObject)

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Descriptor(AnyDescriptor<'a>)

A regular descriptor (including built-in extension descriptors).

CustomExtension

A custom-registered extension body (tag 0x7F, known descriptor_tag_extension).

Fields

tag_extension: u8

The descriptor_tag_extension byte.

value: Box<dyn ExtensionObject>

The parsed, type-erased extension body value. Call downcast_ref on it (see ExtensionObject) to recover the concrete type.

Trait Implementations

impl<'a> Debug for ExtIterItem<'a>

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

Formats the value using the given formatter.

impl<'a> Serialize for ExtIterItem<'a>

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.