feat(example): demo of erc20

[clearloop]

trafficstars

A basic ERC20 implementation

Tasks

• [ ] ~~function~~
  • [ ] ~~dynamic arguments~~
• [x] storage
  • [x] write storage in constructor
  • [x] read storage
  • [ ] ~~read / write dynamic{bytes, string}~~
  • [x] mapping implementation
• [x] fix reading static variables
• [ ] transfer / allowance / approval
• [ ] deriving and exposing functions from trait (ERC20)

Contract

• [ ] read
  • [x] name
  • [x] symbol
  • [x] decimals
  • [x] totalSupply
  • [x] balanceOf
  • [x] allowance
• [ ] write
  • [ ] transfer
  • [ ] approve
  • [ ] transferFrom
  • [ ] internal
    • [ ] _transfer
    • [ ] _update
    • [ ] _mint
    • [ ] _burn
    • [ ] _approve
    • [ ] _spendAllowance