Should there be a load! function?

[evetion]

FileIO now implements following modes of open() by using load() and save()

• r | read
• r+ | read, write
• w | write, create, truncate
• w+ | read, write, create, truncate
• a | write, create, append
• a+ | read, write, create, append

I'd like to implement load!() in my packages for opening files in (at least) r+ mode. This helps with large, streamed, files that I don't want to duplicate by using load and save.

At the moment I would do:

function load(f::File{format"example"}; mutable=false)
     # file, readable, writable, create, truncate, append
     open(f, true, mutable, false, false, false) do s
       ..etc..

load!(f::File{format"") = load(f, mutable=true)

But should FileIO also export FileIO.load!? I guess the same can be asked for #78, where my use case is partly implemented (streaming). We could in theory also export a loadstreaming! method.

[timholy]

If you still want this, a keyword argument would be the way to go to pass the file-opening mode. But of course you can do this manually by opening the file and passing a stream.

Since this may already be possible, I'll close this pending a PR.