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Add proper revert message on overflow of totalSupply during burn (#3144)

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Hadrien Croubois
2022-02-01 23:10:11 +01:00
committed by GitHub
parent ca755ce799
commit 574f3b89e1
1 changed files with 7 additions and 1 deletions
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8
contracts/token/ERC1155/extensions/ERC1155Supply.sol
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@ -51,7 +51,13 @@ abstract contract ERC1155Supply is ERC1155 {
if (to == address(0)) { if (to == address(0)) {
for (uint256 i = 0; i < ids.length; ++i) { for (uint256 i = 0; i < ids.length; ++i) {
_totalSupply[ids[i]] -= amounts[i]; uint256 id = ids[i];
uint256 amount = amounts[i];
uint256 supply = _totalSupply[id];
require(supply >= amount, "ERC1155: burn amount exceeds totalSupply");
unchecked {
_totalSupply[id] = supply - amount;
}
} }
} }
} }