Enum gif::Block[][src]

#[repr(u8)]
pub enum Block {
    Image,
    Extension,
    Trailer,
}

Known GIF block labels.

Note that the block uniquely specifies the layout of bytes that follow and how they are framed. For example, the header always has a fixed length but is followed by a variable amount of additional data. An image descriptor may be followed by a local color table depending on information read in it. Therefore, it doesn’t make sense to continue parsing after encountering an unknown block as the semantics of following bytes are unclear.

The extension block provides a common framing for an arbitrary amount of application specific data which may be ignored.

Variants

Image

Image block.

Extension

Extension block.

Trailer

Image trailer.

Implementations

impl Block[src]

pub fn from_u8(n: u8) -> Option<Block>[src]

Converts u8 to Option<Self>

Trait Implementations

impl Clone for Block[src]

impl Debug for Block[src]

impl PartialEq<Block> for Block[src]

impl Copy for Block[src]

impl Eq for Block[src]

impl StructuralEq for Block[src]

impl StructuralPartialEq for Block[src]

Auto Trait Implementations

impl RefUnwindSafe for Block

impl Send for Block

impl Sync for Block

impl Unpin for Block

impl UnwindSafe for Block

Blanket Implementations

impl<T> Any for T where
    T: 'static + ?Sized
[src]

impl<T> Borrow<T> for T where
    T: ?Sized
[src]

impl<T> BorrowMut<T> for T where
    T: ?Sized
[src]

impl<T> From<T> for T[src]

impl<T, U> Into<U> for T where
    U: From<T>, 
[src]

impl<T> ToOwned for T where
    T: Clone
[src]

type Owned = T

The resulting type after obtaining ownership.

impl<T, U> TryFrom<U> for T where
    U: Into<T>, 
[src]

type Error = Infallible

The type returned in the event of a conversion error.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, 
[src]

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

The type returned in the event of a conversion error.