actix-web/actix-http/src/body/size.rs

41 lines
1.1 KiB
Rust

/// Body size hint.
#[derive(Debug, Clone, Copy, PartialEq)]
pub enum BodySize {
/// Absence of body can be assumed from method or status code.
///
/// Will skip writing Content-Length header.
None,
/// Zero size body.
///
/// Will write `Content-Length: 0` header.
Empty,
/// Known size body.
///
/// Will write `Content-Length: N` header. `Sized(0)` is treated the same as `Empty`.
Sized(u64),
/// Unknown size body.
///
/// Will not write Content-Length header. Can be used with chunked Transfer-Encoding.
Stream,
}
impl BodySize {
/// Returns true if size hint indicates no or empty body.
///
/// ```
/// # use actix_http::body::BodySize;
/// assert!(BodySize::None.is_eof());
/// assert!(BodySize::Empty.is_eof());
/// assert!(BodySize::Sized(0).is_eof());
///
/// assert!(!BodySize::Sized(64).is_eof());
/// assert!(!BodySize::Stream.is_eof());
/// ```
pub fn is_eof(&self) -> bool {
matches!(self, BodySize::None | BodySize::Empty | BodySize::Sized(0))
}
}