migrate(forge-bind): to alloy

[yash-atreya]

Motivation

Final part of alloy migration

Solution

In order to do this, we have to make use of parts of code that make up the sol! macro to create a SolMacroGen type that is similar to the Abigen type in ethers.

We're reading the JSON abi files (the artifacts) and retrieving the ABI from it then converting that to a Solidity TokenStream and ultimately convert that to a SolInput that should be passed to the expander that is used by the sol! macro here: https://github.com/alloy-rs/core/blob/85aecdf54c56da20f274a21f372d3d37b8c118ca/crates/sol-macro/src/lib.rs#L281.

However the issue is that the expand module is private in the sol-macro crate and cannot be made public since it's not a macro.

@DaniPopes @mattsse I can move the expand module to a new crate sol-macro-expander, make it public and use it in foundry??

TODO

• Artifacts and files filter
• Make expand public by moving to a new crate.
• Write to crate and module

[yash-atreya]

Proposing to make the utils method tokens_for_sol https://github.com/alloy-rs/core/blob/85aecdf54c56da20f274a21f372d3d37b8c118ca/crates/sol-macro-input/src/json.rs#L74 also public in alloy-rs/core, we can then remove the syn, proc_macro2 deps.

[yash-atreya]

TODO:

• Filter for selecting and excluding ABIs in alloy
• Adding derive and sol attributes
• Cleanup nits and error handling todos

[mattsse]

@DaniPopes is best equipped to give directions here, but I think this sounds reasonable

[yash-atreya]

@DaniPopes merge?

[mattsse]

nice work!