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

By default the compiler prints any JSON output in a compact form:

echo "contract C {}" | solc - --combined-json abi

{"contracts":{"<stdin>:C":{"abi":[]}},"version":"0.8.6+commit.11564f7e.Linux.g++"}

You can use --pretty-json option to get nicely indented output from --combined-json option:

echo "contract C {}" | solc - --combined-json abi --pretty

Hi, just wondering why there are no tests in the scaffolded project when running truffle init...

Can I make a PR adding this? Where in the main truffle source code should I put this file?

thanks!

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.

We are using "no-return-wait": "error", but it would've be better to do the opposite and to actually enforce return await everywhere, so that we have better async stack traces. See this comment.

Links:

• no-return-await
• [@typescript-eslint/return-await](https://

From @Arachnid recent tweet, it looks like there is not good up to date solution to generate doc from natspec. We should explore the current solutions and create something on top of slither

Overview

If I import a file that has a constructor and just that file, and try to compile and deploy, brownie ignores it.

Specification

Here's what a file that brownie would ignore looks like:

pragma solidity 0.4.24;

import "@chainlink/contracts/src/v0.4/Oracle.sol";

(I remapped chainlink contacts so I could use the @ syntax)

However, Oracle.sol has a constructo

We can safely disallow any use of solc below 0.4.25.

I left a review and then got this message

which seems strange as it's telling me something I know.