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#![feature(type_alias_impl_trait)]
// edition:2021
// unset-rustc-env:RUST_BACKTRACE
// compile-flags:-Z treat-err-as-bug=1
// error-pattern:stack backtrace:
// failure-status:101
// normalize-stderr-test "note: .*" -> ""
// normalize-stderr-test "thread 'rustc' .*" -> ""
// normalize-stderr-test " +[0-9]+:.*\n" -> ""
// normalize-stderr-test " +at .*\n" -> ""
use std::future::Future;
struct Connection {
}
trait Transaction {
}
struct TestTransaction<'conn> {
conn: &'conn Connection
}
impl<'conn> Transaction for TestTransaction<'conn> {
}
struct Context {
}
type TransactionResult<O> = Result<O, ()>;
type TransactionFuture<'__, O> = impl '__ + Future<Output = TransactionResult<O>>;
fn execute_transaction_fut<'f, F, O>(
f: F,
) -> impl FnOnce(&mut dyn Transaction) -> TransactionFuture<'_, O>
where
F: FnOnce(&mut dyn Transaction) -> TransactionFuture<'_, O> + 'f
{
f
}
impl Context {
async fn do_transaction<O>(
&self, f: impl FnOnce(&mut dyn Transaction) -> TransactionFuture<'_, O>
) -> TransactionResult<O>
{
let mut conn = Connection {};
let mut transaction = TestTransaction { conn: &mut conn };
f(&mut transaction).await
}
}
fn main() {}
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