TypedArray (e.g. Uint8Array) into BufRead/Read without memory copying

[ingun37]

I need Uint8Array in the form of BufRead or Read.

I could just copy the whole memory using something like to_vec and construct some type of BufRead/Read but I don't want to because the Uint8Array I'm dealing with can be huge (50~100mb)

I think in order to do that I have to get the address to the mutable continuous memory block, probably in type of *mut [u8]. (I'm not familiar with Rust yet so the syntax might not be right but hope you get the idea).
But I can't find the suitable method from Uint8Array doc.

Is it possible? If so, how can I do it?

[alexcrichton]

You'll probably want to hold a js_sys::Uint8Array and then develop your own abstraction around it (using methods in js-sys to copy data in/out). Currently there's nothing built-in for this, however.