Implicitly scoped using statement without explicit assignment

[r30e]

The introduction of implicitly scoped suing statments have been great for C# and have improved readbility greatly. However, they have one limitation vs traditional explicitly-scoped using statements: They require assigning a variable. There are many situations in which I want to use an IDisposable without actually assigning a variable. All of these situations require a compromise on readability - either you have to explicitly scope the using statement or you have to assigned an unused variable.

logging:

using(logger.BeginScope(myState))
{
  // ...
}

FluentAssertions:

using(new AssertionScope())
{
  // ...
}

method returning IDisposable and out var:

using(RentBuffer(out Memory<T> memory))
{
  // ...
}

Proposal

Allow implicitly-scoped using statements to exist without a(n explicit) variable assignment:

logging:

using logger.BeginScope(myState);
// ...

FluentAssertions:

using new AssertionScope();
// ...

IDidposable & out var:

using RentBuffer(out Memory<T> memory);
// ...

This would allow this situations to benefit from the increased readability of the implict-scoping.

[ufcpp]

#7882

[r30e]

Thanks, I did search but couldn't find this. Have closed as duplicate