Flow•2y ago

Giovanni S | Flow (2024-02-04)

Any timelines on the getting the WASM execution engine into Cadence? Ref - https://forum.flow.com/t/idea-wasm-execution-engine-in-cadence/5164/16

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Idea: WASM Execution Engine in Cadence

Love the Idea! This means that more complex computational logic can be implemented through Wasm, but data storage still exists in the form of Resources in Cadence. The first question that comes to mind is the accessibility of Resource data in Wasm, as this involves capabilities and access control in Cadence. If the use of wasm is limited to o...

Needle•2/4/24, 9:00 PM

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Giovanni SOP•2/4/24, 9:04 PM

Context is I’m ideating through building content-based addressing and came across an IPLD rust module. Wondering if it would be feasible to create a mechanism to derive a content-based address using this or a similar library compiled to WASM in the planned execution engine
Cc @Jeff | Flow

turbolent•2/5/24, 6:23 AM

There’s currently no concrete plan to add this. We might be able to prioritize it once Cadence 1.0 is out

turbolent•2/5/24, 6:25 AM

I worked on a PoC a couple months ago: https://github.com/onflow/cadence/pull/2760. The remaining work is being tracked in https://github.com/onflow/cadence/issues/2853

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Add a WebAssembly API · Issue #2853 · onflow/cadence

Issue to be solved As discussed in https://forum.onflow.org/t/idea-wasm-execution-engine-in-cadence/5164, add an API to Cadence that allows running WebAssembly programs. Suggested Solution An MVP s...

turbolent•2/5/24, 6:27 AM

We’ll need to finalize the API proposal and figure out things like metering, then open a FLIP, similar to the ongoing EVM work

turbolent•2/5/24, 6:28 AM

Maybe this could also be worked on earlier through a grant

turbolent•2/5/24, 6:29 AM

@Giovanni S | Flow do you have a link to the library? If it’s not too much trouble code and it’s not computation heavy, maybe the code can also be ported to Cadence

Tturbolent @Giovanni S | Flow do you have a link to the library? If it’s not too much troub...

Giovanni SOP•2/5/24, 2:15 PM

These are two I found from ipld.io
Go library - https://github.com/ipld/go-ipld-prime
Rust library - https://github.com/ipld/libipld

GitHub

GitHub - ipld/go-ipld-prime: Golang interfaces for the IPLD Data Mo...

Golang interfaces for the IPLD Data Model, with core Codecs included, IPLD Schemas support, and some handy functional transforms tools. - GitHub - ipld/go-ipld-prime: Golang interfaces for the IPLD...

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GitHub - ipld/libipld: Rust IPLD library

Rust IPLD library. Contribute to ipld/libipld development by creating an account on GitHub.

Bbluesign | dnz.dev Interesting use case, how content based addressing will be used?

Giovanni SOP•2/5/24, 2:28 PM

Nothing planned atm, just looking for rabbit holes. It’d be interesting to have a tool for deriving content-based addresses deterministically. Motivating use case was support for IPFS uri derivation and publish to commitment relayer - so derive the uri, commit to erc721 on bridging, then publish an event with the data that needs to be published with certainty that the uri will be what was committed. I’m wondering if there would be a way to stand up a gateway that resolves URI requests in a similar interface to an IPFS gateway

Bbluesign | dnz.dev IPFS uri derivation is basically sha256(protobufEncode(data)) , probably can be ...

Giovanni SOP•2/5/24, 4:10 PM

Oh interesting, thanks for pointing out a reference!