84 lines
1.5 KiB
Rust
84 lines
1.5 KiB
Rust
use std::fmt;
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use std::sync::Arc;
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use http::buf::MemSlice;
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/// A piece of a message body.
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pub struct Chunk(Inner);
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enum Inner {
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Owned(Vec<u8>),
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Referenced(Arc<Vec<u8>>),
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Mem(MemSlice),
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Static(&'static [u8]),
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}
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impl From<Vec<u8>> for Chunk {
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#[inline]
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fn from(v: Vec<u8>) -> Chunk {
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Chunk(Inner::Owned(v))
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}
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}
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impl From<Arc<Vec<u8>>> for Chunk {
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#[inline]
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fn from(v: Arc<Vec<u8>>) -> Chunk {
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Chunk(Inner::Referenced(v))
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}
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}
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impl From<&'static [u8]> for Chunk {
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#[inline]
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fn from(slice: &'static [u8]) -> Chunk {
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Chunk(Inner::Static(slice))
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}
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}
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impl From<String> for Chunk {
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#[inline]
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fn from(s: String) -> Chunk {
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s.into_bytes().into()
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}
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}
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impl From<&'static str> for Chunk {
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#[inline]
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fn from(slice: &'static str) -> Chunk {
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slice.as_bytes().into()
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}
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}
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impl From<MemSlice> for Chunk {
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fn from(mem: MemSlice) -> Chunk {
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Chunk(Inner::Mem(mem))
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}
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}
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impl ::std::ops::Deref for Chunk {
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type Target = [u8];
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#[inline]
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fn deref(&self) -> &Self::Target {
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self.as_ref()
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}
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}
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impl AsRef<[u8]> for Chunk {
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#[inline]
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fn as_ref(&self) -> &[u8] {
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match self.0 {
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Inner::Owned(ref vec) => vec,
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Inner::Referenced(ref vec) => vec,
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Inner::Mem(ref slice) => slice.as_ref(),
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Inner::Static(slice) => slice,
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}
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}
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}
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impl fmt::Debug for Chunk {
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#[inline]
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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fmt::Debug::fmt(self.as_ref(), f)
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}
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}
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