What 💻

• Add functions to use zksolc --link
• Process deploy-time linking (CREATE only)

Why ✋

• Allow tests & scripts to rely on contracts with libraries that have not been deployed yet

Notes 📝

There's a simple merge conflicts due to the lack of access to DualCompiledContracts during the MultiContractRunner instantiation.

This is a working yet incomplete implementation, as such there are a few quirks, in particular: unlinked factory deps are not supported (zksolc 1.5.9 should have some extra info that we can use), linking via CREATE2 is not supported either yet.

Currently there's an issue with trying to actually run the library, I believe due to a missing storage migration:

2024-12-20T21:22:57.842992Z ERROR suite{name=CounterTest}:test{kind=test name=testIncrement}:call:inspect: foundry_zksync_core::vm::tracers::cheatcode: call may fail or behave unexpectedly due to empty code target=0x0e93455c2327dc24ac46d3a2edade6dbb6260629 calldata="771602f70000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000