solidity

🎉 Description

The ECDSA contract has a function toEthSignedMessage(bytes32), but we should have a function that works for any length of a bytes array:

function toEthSignedMessage(bytes s) pure internal returns (bytes32) {
  return keccak256(
    "\x19Ethereum Signed Message:\n",
    uintToBytes(s.length),
    s);
}

Where uintToBytes is implemented from an ideally

Page

Style Guide.

Abstract

The Solidity Style Guide is not up to date with all the features added recently to the language. It needs to be updated

Details

There are now good linters available, such as solhint so I have doubts whether maintaining detailed guidelines independently

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.

Description
Add a contract similar to Aave's AddressProvider or Uniswap's getPair() functionality.

Motivation
On-chain lookups of price oracles given the asset addresses.

Justification
String manipulation is difficult and expensive in Solidity, and you usually work with the token address, not its string name.

Testing methods like evm_mine and evm_increaseTime expect integer parameters. Unlike other methods, they reject these parameters if they are not decimal-encoded.

To reproduce

npx hardhat --version -> 2.5.0

Run npx hardhat node and make the following rpc calls:

> curl -H "Content-Type: application/json" -X POST --data \
        '{"id":1337,"jsonrpc":"2.0","method":"evm

Add flags to slither-check-upgradeability to disable some detectors per name, or per detectors impact, or to enable only some of the detectors (per name/impact)

Overview

Currently when I run brownie console, it recompiles all the contracts. Apparently due to some issue which is not identified.

I only want to compile once with brownie compile -all. That's it.
I work on the frontend side, I don't modify the contracts, I just need a local fork and run some scripts.

Currently it's slow as hell

We can safely disallow any use of solc below 0.4.25.