Ari Seyhun (May 15 2023 at 08:34): Ari Seyhun (May 15 2023 at 08:34):I'm updating some old code which used the preview2-prototyping crates to use wasm components, and it seems like I now need to implement WasiView for a context: <https://github.com/bytecodealliance/preview2-prototyping/blob/main/host/src/main.rs#L96>
I also see the Table has been introduced as a requirement too. Sadly these types have no code docs yet.
What is WasiView and the table used for exactly?
Pat Hickey (May 15 2023 at 17:02):hi, yes, all of that code does need new docs written
Pat Hickey (May 15 2023 at 17:03):in short the explanation is: previously, WasiCtx owned a Table, so it was just an implementation detail never exposed to the user
Pat Hickey (May 15 2023 at 17:04):its still an implementation detail - the user shouldnt ever have to interact with table directly, WasiCtxBuilder and WasiView should take care of it - but we needed to enable sharing the same Table across many different crates implementing different chunks of wasi preview 2
Pat Hickey (May 15 2023 at 17:06):so, the user is responsible for creating one single Table, using it to build their WasiCtx as well as any other ctxs that need it, and then making it a member of their T in Store<T> struct, and providing WasiView impl on that T
Pat Hickey (May 15 2023 at 17:07):if you take a look in host/src/main.rs or host/tests/command.rs you can see examples of how this should look
Pat Hickey (May 15 2023 at 17:08):and i suppose we can package in a more convenient version of that
Notification Bot (May 16 2023 at 13:04):Ari Seyhun has marked this topic as resolved.
Last updated: Dec 23 2024 at 13:07 UTC