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Add registry implementation

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lash 2023-03-25 16:23:16 +00:00
parent 8b07a9f3dc
commit c94b344264
Signed by: lash
GPG Key ID: 21D2E7BB88C2A746
4 changed files with 17 additions and 8 deletions
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python/eth_token_index/data/TokenUniqueSymbolIndex.bin
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python/eth_token_index/data/TokenUniqueSymbolIndex.json
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python/eth_token_index/data/TokenUniqueSymbolIndex.metadata.json
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@ -1 +1 @@
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19
solidity/TokenUniqueSymbolIndex.sol
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@ -3,16 +3,17 @@ pragma solidity >=0.8.0;
// SPDX-License-Identifier: AGPL-3.0-or-later
contract TokenUniqueSymbolIndex {
// EIP 173
address public owner;
mapping(address => bool) isWriter;
mapping ( bytes32 => uint256 ) registry;
//address[] tokenIndex;
mapping ( address => bytes32 ) tokenIndex;
address[] tokens;
// Implements EIP173
address public owner;
// Implements Registry
bytes32[] public identifiers;
// Implements EIP173
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
@ -70,7 +71,9 @@ contract TokenUniqueSymbolIndex {
registry[token_symbol_key] = tokens.length;
tokens.push(_token);
identifiers.push(token_symbol_key);
tokenIndex[_token] = token_symbol_key;
emit AddressKey(token_symbol_key, _token);
emit AddressAdded(_token);
return true;
@ -94,6 +97,7 @@ contract TokenUniqueSymbolIndex {
i = registry[tokenIndex[_token]];
if (i < l) {
tokens[i] = tokens[l];
identifiers[i] = identifiers[l];
}
tokens.pop();
registry[tokenIndex[_token]] = 0;
@ -152,6 +156,11 @@ contract TokenUniqueSymbolIndex {
return true;
}
// Implements Registry
function identifierCount() public view returns(uint256) {
return identifiers.length;
}
// Implements EIP165
function supportsInterface(bytes4 _sum) public pure returns (bool) {
if (_sum == 0x12625fe5) { // Registry