Migration form Cairo 0.10 to 1.0?

[cwkang1998]

As per the title, is there any plans for migration of the transpilation target from Cairo 0.10 to 1.0? If there's a plan, can you share how you would want to migrate / work on it so that we can help?

If we continue working on transpiling to Cairo 0.10, I feel like we might have to repeat that effort for Cairo 1.0. With that in mind, I feel that if we just directly work on Cairo 1.0 it'll reduce a lot more potential duplicate work. However, since 1.0 is currently under heavy development, there's potentially a high chance that the syntax would change drastically, but I think with the potential changes it'll still be easier than migrating 0.10 completely.

Given that Starknet 0.11 seems to be coming close as well, I think its time to consider starting migration.

[tserg]

Thanks for opening this discussion! I agree with the points you made.

At this moment, I am thinking of the following steps:

• Pause development on Cairo 0.10
• Once Starknet v0.11 is released, and both ape-cairo and ape-starknet are updated to Cairo 1.0 and Starknet v0.11 respectively, upgrade the CI.
• Migrate pass by pass to Cairo 1.0. Depending on the finalised syntax, we can then work out which passes should be migrated first.
• The end goal is to have a ERC20 contract transpiled to Cairo 1.0.

Any thoughts on this?

[cwkang1998]

That sounds good! Lets go with that.

[louisguthmannStarkWare]

Man that would be phenomenal :) We need to discuss about it

[tserg]

Some update on things:

• Cairo 1 is still going through some breaking changes.
• ape-starknet is not ready yet for Cairo 1.
• Vyper 0.3.8 introduces some breaking changes in the vyper compiler API.

We can update the vyper compiler API first once v0.3.9 is released.