From 1dca378e032e175d9df8ff151d3b256fa1e5c57d Mon Sep 17 00:00:00 2001
From: Michael Zhu <mchl.zhu.96@gmail.com>
Date: Tue, 14 Jan 2020 16:32:18 -0800
Subject: [PATCH] add division-by-zero check for ERC1155 too

---
 contracts/dev-utils/contracts/src/LibAssetData.sol | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/contracts/dev-utils/contracts/src/LibAssetData.sol b/contracts/dev-utils/contracts/src/LibAssetData.sol
index 94584f625a..6333ea3d6b 100644
--- a/contracts/dev-utils/contracts/src/LibAssetData.sol
+++ b/contracts/dev-utils/contracts/src/LibAssetData.sol
@@ -100,6 +100,11 @@ contract LibAssetData {
 
             uint256 length = tokenIds.length;
             for (uint256 i = 0; i != length; i++) {
+                // Skip over the token if the corresponding value is 0.
+                if (tokenValues[i] == 0) {
+                    continue;
+                }
+
                 // Encode data for `balanceOf(ownerAddress, tokenIds[i])
                 bytes memory balanceOfData = abi.encodeWithSelector(
                     IERC1155(address(0)).balanceOf.selector,