Jean Cvllr

Enable `supportsInterface(...)` from ERC165 on ERC20 contract implementation

8

**🧐 Motivation** In the current token implementations of OpenZeppelin contracts, [only the ERC721 implementation contains the `supportsInterface(...)` function](https://github.com/OpenZeppelin/openzeppelin-contracts/blob/d1b1e17d23cc28eecd07e411a461854988803aa8/contracts/token/ERC721/ERC721.sol#L52). ERC20 does not contain `supportsInterface(...)` by default. I am not sure why...

Cannot install Web3j (website "internal.services.web3labs.com" down?)

6

# Cannot install Web3j ⚠️ Impossible to install Web3j, using this command below from the docs: http://docs.web3j.io/4.8.7/command_line_tools/ ## _Issue_description_ _Please describe what are you trying to do and why it...

### Describe the issue: I have the following contract code below, that use bit shifts to create a mask that can be used to compare if part of a `byte32`...

# What does this PR introduce? Introduce a new permission `ENCRYPT` in the LSP6 standard, placed after SIGN and before the SUPER permissions.

A LSP9Vault is based on the ERC725X standard but it should not be allowed to use DELEGATECALL. DELEGATECALL is dangerous and could override the vault storage in unexpected ways, leading...

To be discussed

hardhat-etherscan: error `unknown UID` when verifying deployed contracts

2

I often encounter a problem with hardhat-etherscan when trying to verify deployed contracts. Sometimes, the verification works without any problem, other times I get back the following error: ```bash Error...

# What does this PR introduce? Edit the **requirements** section under LSP6 > `executeRelayCall(...)`. - The payload for `executeRelayCall(...)` MUST now be signed using the `"\x19LSP6 ExecuteRelayCall:\n" + len(message) +...

Mark visibility of `initialize(...)` functions as `external`

1

This topic has probably been discussed already in the past, and reached agreement. But I believe it is worth discussing again since [`4.4.1`](https://github.com/OpenZeppelin/openzeppelin-contracts/releases/tag/v4.4.1) release. ## Background The `initialize(...)` function of...

Cannot use word `_offset` in local variable name in inline assembly because of old 0.7.x syntax

1

## Description I have the following Solidity code with the inline assembly part that does not compile. See example below. It always return me the following error: ``` DeclarationError: Identifier...