How to use System.IO.Stream in unity tiny wasm?

Try to build unity tiny with wasm throw this error

error CS0234: The type or namespace name 'IO' does not exist in the namespace 'System' (are you missing an assembly reference?)​

It seem like whole `System.IO` was exclude from wasm build, while it understandable for `File` and other low level API, `Stream` and related reader/writer should be accessible anywhere

 

It simply because many 3rd party library, especially what related to reading data such as parser, require `Stream` as its dependencies

`Stream` is very basic component that people relying in their API

Right now I am making DSL parser library and try to make it work in Tiny. Missing of `Stream` is blocking issue that cannot be avoided

 

If it was a sample library, I am trying to use this library at first

https://github.com/grownith/jmespath.upm

There was some API that use that base `Stream` for receiving any kind of stream. But there was also API that use `StringWriter` and `StringReader` which might use some kind of inherited stream underlyingly. And surerly there might also use `MemoryStream`

Actually what I expect is, except native or hardware like `File` and `Port`. All other functionality in `System.IO` should be included. Because it was utilized as commonly as collection

 

I'd like to add that Unity's low-level networking API (here) also depends on `System.IO` and `Stream`.

Seems necessary to add these if Project Tiny is going to support networking.

 

I think I also needed System.IO.Stream for using the SimpleJSON parser. I went through a lot of parser implementations online, all relying on System.IO.Stream. I ended up implementing System.IO.Stream myself in a rudimentary way, to get those libraries to compile., would have been nice to have it available in Tiny. JSON is essential for browser apps if you're communicating with a server API.

 

Really great news