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refs/heads/lcnr/rustc-dev-guide
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tests
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ui
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async-await
/
async-closures
/
await-inference-guidance.rs
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//@ aux-build:block-on.rs
//@ edition:2021
//@ run-pass
extern
crate block_on
;
fn
main
()
{
block_on
::
block_on
(
async
{
let
x
=
async
|
x
:
&
str
|
->
String
{
x
.
to_owned
()
};
let
mut
s
=
x
(
"hello, world"
).
await
;
s
.
truncate
(
4
);
println
!(
"{s}"
);
});
}