smart-contracts

Issue

The "Full Example" of using @truffle/contract to interact with contracts should include an example of listening to an event with a filter.

In the past, it used to be possible to pass a filter object on indexed event parameters when listening to an event, as seen for example [here](https://ethereum.

When passing Wasm function to the host as a callback, it's passed as an index in the table.
Wasm3 needs to provide an API to call such functions.

Hardhat doesn't support solc remappings.
We should print a warning if we detect that a user is trying to use them via their config.

We can safely disallow any use of solc below 0.4.25.