using declaration for foreach

[ahdung]

I hope can do this:

foreach (using var reader in GetReaders())
{
    // use reader
}

instead of:

foreach (var reader in GetReaders())
{
    using (reader)
    {
        // use reader
    }
}

[HaloFour]

You can do:

foreach (var reader in GetReaders()) using (reader)
{
    // use reader
}

[ahdung]

not perfect, has format "issue" in most format behavior:

foreach (var reader in GetReaders())
    using (reader)
    {
        // use reader
    }

[HaloFour]

Sounds like something that should be addressed in the formatter.

[ufcpp]

#8797

[asik]

You can also avoid the identation with a placeholder variable. The foreach iteration variable can't be reassigned so this shouldn't create confusion as to what is getting disposed.

foreach(var reader in GetReaders())
{
    using var _ = reader;
    // use reader
}