ERC721 full implementation #682
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@frangio can you please review? |
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@facuspagnuolo might not be my place to comment here, but I've been playing around with your contract from this PR today for an application I'm working on. OpenZeppelin has such a huge adoption this might become something of a reference implementation. As such I just wanted to clarify something. Are the |
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@TimTinkers thanks for reaching out! As far as I know, those functions are not agreed to part of the standard yet, but are under discussion. We are still reviewing this implementation and discussing about |
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| return owner; | ||
| function tokenOfOwnerByIndex(address _owner, uint256 _index) public view returns (uint256) { | ||
| require(_index < balanceOf(_owner)); | ||
| return tokensOf(_owner)[_index]; |
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This is an order of magnitude slower as it returns the entire array and then indexes the array, and would not work on large arrays. A better way would to make ownedTokens internal and use:
return ownedTokens[_owner][_index];
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Already on it! spalladino@b81b4e1#diff-bc9f12d1d1e8ef6bdba9bc4d73ae8329R57
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Closing in favour of #803 |
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Fixes #640
This PR includes a full implementation of the ERC721 including all the required and some of the optional functionality. Moreover, it provides an approve all implementation using operatable terminology.