Morpho pinned to solc 0.8.19 make it incompatible with latest OpenZeppelin

[codekoriko]

Morpho pinned to solc 0.8.19 make it incompatible with latest OpenZeppelin

[MerlinEgalite]

Hey @codekoriko! What are you building? You can import the interface which is >=0.5.0 if you want to interact with blue

[MathisGD]

Any reason Morpho is pinned to solidity 0.8.19?

the reason was to have the same bytecode on chains without support for push0, and be able to have the same address everywhere. An other option was to force the evm_version to paris, but we decided to go for 0.8.19 because it enforces the no push0 in the file directly.

is it a gas cost deterioration?

as you can see in #378, it's only like ~60 gas on average.

Especially since you reverted back to 0.8.19 it in this #378

My issue is that, it makes it incompatible with the latest OpenZeppelin, which require 0.8.20

As Merlin said, in your source implementation you should only need the IMorpho interface, which has a looser solidity version.

And if you need Morpho Blue in your tests, you have two options:

• fork Ethereum and use the one deployed on chain (address here).
• use deployCode, and force the compilation of Blue through a "import file" (see an example here).

[MathisGD]

The idea of the foundry's function deployCode is to import the bytecode of Morpho.sol, hence circumventing the incompatible solc issue?

Yes exactly. Note that in order for it to work, you need to force the compilation of Morpho Blue anyway, which I advise to do with an import file (see here) that you put in your src folder.

Otherwise, forking ethereum is even simpler: markets are already created and with liquidity, etc.

[codekoriko]

Otherwise, forking ethereum is even simpler: markets are already created and with liquidity, etc.

Thanks for the feedbacks, it sounds like a good idea indeed

Interesting, what's the name of the project? 👀

I'm working on the Leveros Finance project 🚀

[codekoriko]

Coding an app that perform leverage of morpho Markets. Making the use callBacks as shown in your snippets: LeverageDeleverageSnippets.sol

So indeed I need Morpho Blue in my tests

I'm Installing dependencies like so
forge install morpho-org/morpho-blue morpho-org/morpho-blue-oracles
That is morpho-blue-oracles that installs in turn OpenZeppelin to the latest version in it's lib/

The idea of the foundry's function deployCode is to import the bytecode of Morpho.sol, hence circumventing the incompatible solc issue?

[MerlinEgalite]

Coding an app that perform leverage of morpho Markets

Interesting, what's the name of the project? 👀

Otherwise, forking ethereum is even simpler: markets are already created and with liquidity, etc.

I would recommend this approach as well.