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feat(body): require Sync when wrapping a dynamic Stream

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This commit is contained in:
Sean McArthur
2019-07-10 16:41:44 -07:00
parent 3524db9473
commit 4441372121
1 changed files with 8 additions and 4 deletions
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12
src/body/body.rs
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@@ -41,7 +41,11 @@ enum Kind {
content_length: Option<u64>,
recv: h2::RecvStream,
},
Wrapped(Pin<Box<dyn Stream<Item = Result<Chunk, Box<dyn StdError + Send + Sync>>> + Send>>),
// NOTE: This requires `Sync` because of how easy it is to use `await`
// while a borrow of a `Request<Body>` exists.
//
// See https://github.com/rust-lang/rust/issues/57017
Wrapped(Pin<Box<dyn Stream<Item = Result<Chunk, Box<dyn StdError + Send + Sync>>> + Send + Sync>>),
}
struct Extra {
@@ -142,7 +146,7 @@ impl Body {
/// ```
pub fn wrap_stream<S>(stream: S) -> Body
where
S: TryStream + Send + 'static,
S: TryStream + Send + Sync + 'static,
S::Error: Into<Box<dyn StdError + Send + Sync>>,
Chunk: From<S::Ok>,
{
@@ -411,13 +415,13 @@ impl Stream for Body {
impl
From<Box<dyn Stream<Item = Result<Chunk, Box<dyn StdError + Send + Sync>>> + Send>>
From<Box<dyn Stream<Item = Result<Chunk, Box<dyn StdError + Send + Sync>>> + Send + Sync>>
for Body
{
#[inline]
fn from(
stream: Box<
dyn Stream<Item = Result<Chunk, Box<dyn StdError + Send + Sync>>> + Send,
dyn Stream<Item = Result<Chunk, Box<dyn StdError + Send + Sync>>> + Send + Sync,
>,
) -> Body {
Body::new(Kind::Wrapped(stream.into()))