Are we async yet?
For async syntax, not yet, but progress is being made!
Although the more ergonomic syntax is not ready yet,
asynchronous I/O is already possible in Rust with
ecosystem around futures ,
mio , and
tokio .
async syntax and blockers
async/await syntax
not stabilized yet
/
RFC 2394
/
#50547
Related issues under A-async-await
#62025 - Broken MIR: generator contains type std::vec::Vec<()>
#62009 - ICE when playing with async/await.
#61986 - ICE compiling with futures compat
#61949 - Inherent async fn returning Self treats type's lifetime parameters as 'static
#61920 - E0373 help suggests move async but the correct syntax is async move
#61910 - error: internal compiler error: broken MIR in DefId ...
#61834 - Broken MIR: generator contains type impl std::future::Future in MIR, but typeck only knows about {impl std::future::Future, ()}
#61798 - unreachable_code warning when invoke .await on async diverging function
#61793 - Codegen ICE/regression with 2019-06-12 nightly when using async fn<T: Fn()>(&self, T)
#61731 - "Broken MIR" ICE when using runtime crate
#61685 - Rustc paniced when apply .await on a closure in a non-async function
#61579 - ICE: Broken MIR in generators
#61482 - A rustc-internal compile error on future and task API
#61335 - ICE when combining unsized locals and async
#61115 - unused-lifetimes lint false-positives with async functions
#61076 - suggest await for future-related type errors
#61072 - async fn + rustfmt don't "just work" inside of RLS
#60889 - Don't ignore generator fields in miri
#60709 - future miscompiling to ud2
#60661 - HIR printing of async fn is broken
#60658 - async / await + Box<Future> + Send does not compile
#60610 - Remove await! macro-like syntax support
#60424 - type inference doesn't work in async fn that return Box<dyn SomeTrait>
#60414 - Using associated types in async fn type break typing
#59971 - async/await: cannot move out of captured variable in an Fn closure
#59337 - async closures have concrete argument lifetimes
#59245 - Inconsistency in Send/Sync requirements for async/await
#59123 - Generator size: unwinding and drops force extra generator state allocation
#59087 - Generator size: borrowed variables are assumed live across following yield points
#57017 - async/await: awaiting inside a match block captures borrow too eagerly
#56974 - Cannot define async fn with no_std
#56767 - await macro is not in libcore.
#56238 - async fn should support multiple lifetimes
#54326 - Mismatched types diagnostic for async fn return type trusts random returns over function signature
#52924 - Generators are too big
#50547 - Tracking issue for async/await (RFC 2394)
#62087 - Async/Await rustc assertion panic
#62028 - thread 'rustc' panicked at 'assertion failed: target_offset >= offset'
#61991 - Can't infer type after collecting an iterator of futures
#61950 - Async function using non-across-yield non-Send value is Send only if the usage is inside curly brackets
#61906 - Since rust is not going in CPS style coroutine, where is the context carrier for async?
#61770 - Broken MIR: generator contains type
#61664 - compiler panicked at 'Box<Any>'
#61452 - [ICE] async fn vs lint order
#61442 - Broken MIR in futures generator (async/await)
#61211 - async/await borrows more around await points than necessary
#61187 - Internal compiler error in nightly when reversing a vector inside a async fn
#60797 - improve the "must use" lint for Future to suggest await
#60674 - Async fn loses mut pattern when passed to attribute macro
#60660 - std::r#await! macro cannot be used even if #![feature(await_macro)] is enabled
#60655 - existential type complains about '_ in concrete type of self-borrowing generators
#60653 - Make the parser aware of await where macro calls are expected
#60645 - Are blanket Future impls necessary?
#60615 - async/await unresolved type parameter in generator error shouldn't refer to yield
#60613 - Provide appropriate suggestions for some of the discussed await syntaxes
#60589 - Is async/await compatible with io_uring (Linux async io)?
#60566 - async fn raises unused_mut on parameter that is used mutably
#60518 - ICE with the newest nightly in lower_ty_direct
#60509 - Extend async fn test suite to account for ref mut? patterns
#60498 - async fn forgets the mutability of the arguments
#60438 - __arg variables from async fn desugaring are accessible to the user
#60418 - Move async/await UI tests into a folder
#60236 - Drop order of async fn arguments doesn't exactly match the equivalent regular fn.
#60203 - Async fns that take structs with elided lifetime parameters are broken.
#60069 - Can define and use async fn without feature gate on nightly
#60016 - Implement await syntax
#59972 - Futures involving uninhabited variables are incorrectly considered uninhabited.
#59313 - async move breaks doc tests
#59113 - Tracking issue for RFC 2592, futures_api
#59001 - async: hidden type for impl Trait captures lifetime that does not appear in bounds
#58945 - internal compiler error: Trying to create type name for unexpected type [debuginfo]
#58930 - async/await produces unspecific "type inside generator must be known in this context" error messages
#58888 - ICE unexpected type in type_metadata: impl core::future::future::Future
#58885 - async/await: Usage of trait objects reports multiple different lifetimes when only one is used
#58884 - async/await: Potentially incorrect lifetime handling when structs with lifetimes are referenced
#58814 - Playing with async triggers compiler bug "TLS Waker not set"
#58652 - async fn should be disallowed entirely on 2015 edition
#58639 - expected signature of `for<'r, 's> fn(&'r mut std::task::Context<'s>)
#57640 - Resolve await syntax
#57084 - ICE(async_await,futures_api,await_macro,generators): cannot relate bound region: ReLateBound(DebruijnIndex(1), BrAnon(2)) <= '_#1r
#57036 - async/await: Sending Waker seems to invalidate it
#56651 - Obscure compiler panic with async/await
#55809 - Mixing async functions and &mut leads to overflow evaluating requirement
#55324 - async fn doesn't capture lifetimes of type parameters if other lifetimes are present
#54974 - async fn: 'static lifetime not inferred for Arc trait object
#54716 - Unused arguments to async fn are dropped too early
#54289 - ICE with async_await + extern crate + invalid import
#53989 - compile async await function error
#53714 - async fn inside inherent impl produces generic parse error on 2015 edition
#53548 - async/await: “the requirement for<'r> 'r : 'static is not satisfied” with 'static across await point
#53447 - ICE with --pretty=expanded and async/await
#53259 - Missing detection of Send for async fn
#53249 - async/await assertion failed: unbounded recursion
#51995 - ICE in generator MIR generated by async/await
#51933 - async fn inside fn fails to parse
#51751 - async/await errors should not discuss "yield statements"
#51353 - 'assertion failed: current_depth > ty::DebruijnIndex::INNERMOST' when using generators
#50659 - Suggestion for E0627's message
#50458 - Implement DerefAsync and DerefMutAsync as Deref and DerefMut in async context
std::task and std::future
stabilized in 1.36
[in beta]
/
RFC 2592
/
#59113
Pin APIs
stabilized in 1.33
[in stable]
/
RFC 2349
/
#49150
Pin as a method receiver
stabilized in 1.33
[in stable]
/
RFC 2362
/
#55786
2018 edition
stabilized in 1.31
[in stable]
async as a keyword in 2018 edition
stabilized in 1.28
[in stable]
impl Trait in return position
stabilized in 1.26
[in stable]
/
RFC 1522
/
#34511
Related issues under A-impl-trait
Future extensions
async fn in trait method
not stabilized yet
Named existentials and impl Trait variable declarations
not stabilized yet
/
RFC 2071
/
#34511
async iterators or stream
unresolved
async ecosystem
tokio -
An event-driven, non-blocking I/O platform for writing asynchronous applications.
It has experimental async/await support provided behind
the async-await-preview feature flag.
/ #804
romio -
A fork of tokio compatible with the new futures API
as well as the async/await syntax
to enable people to experiment with the new syntax.
thin_main_loop -
An experimental, cross platform, main loop and futures executor/reactor,
that binds to the OS APIs suitable for making native GUI applications.
It supports callbacks as well as the async/await syntax.
runtime -
A platform-agnostic library that intends
to make async Rust both flexible and easy.
It was announced by the Async Ecosystem WG as
an exploration towards ecosystem standardization.
Posts about async
Generated at Tue, 25 Jun 2019 15:15:17 +0000
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