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authorAmir Bandeali <abandeali1@gmail.com>2018-08-22 09:14:22 +0800
committerAmir Bandeali <abandeali1@gmail.com>2018-08-22 09:14:22 +0800
commit3760eb5bafcc0980b3a42dd5f10e745390702b16 (patch)
tree964c5c3cb0eeacf70bece4e485b5fddceea2adb4 /packages/contracts/src/2.0.0
parent7fa5b474ebac649b6a23c8b9108e07c117dcc00b (diff)
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Add getBalancesAndAllowances
Diffstat (limited to 'packages/contracts/src/2.0.0')
-rw-r--r--packages/contracts/src/2.0.0/extensions/OrderValidator/OrderValidator.sol19
1 files changed, 19 insertions, 0 deletions
diff --git a/packages/contracts/src/2.0.0/extensions/OrderValidator/OrderValidator.sol b/packages/contracts/src/2.0.0/extensions/OrderValidator/OrderValidator.sol
index 8f4ce9ccc..a18345245 100644
--- a/packages/contracts/src/2.0.0/extensions/OrderValidator/OrderValidator.sol
+++ b/packages/contracts/src/2.0.0/extensions/OrderValidator/OrderValidator.sol
@@ -158,6 +158,25 @@ contract OrderValidator {
return (balance, allowance);
}
+ /// @dev Fetches token balances and allowances of an address for each given assetProxy. Supports ERC20 and ERC721.
+ /// @param target Address to fetch balances and allowances of.
+ /// @param assetData Array of encoded byte arrays that can be decoded by a specified proxy contract when transferring asset.
+ /// @return Balances and allowances of assets.
+ /// For ERC721 tokens, these values will always be 1 or 0.
+ function getBalancesAndAllowances(address target, bytes[] memory assetData)
+ public
+ view
+ returns (uint256[] memory, uint256[] memory)
+ {
+ uint256 length = assetData.length;
+ uint256[] memory balances = new uint256[](length);
+ uint256[] memory allowances = new uint256[](length);
+ for (uint256 i = 0; i != length; i++) {
+ (balances[i], allowances[i]) = getBalanceAndAllowance(target, assetData[i]);
+ }
+ return (balances, allowances);
+ }
+
/// @dev Calls `token.ownerOf(tokenId)`, but returns a null owner instead of reverting on an unowned token.
/// @param token Address of ERC721 token.
/// @param tokenId The identifier for the specific NFT.