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Only reset currentContextAddress if it was previously updated

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This commit is contained in:
Amir Bandeali 2018-07-05 13:29:11 -07:00
parent d634775d40
commit 0ea3b10efd
1 changed files with 11 additions and 8 deletions
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7
packages/contracts/src/2.0.0/protocol/Exchange/MixinTransactions.sol vendored
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@ -99,10 +99,11 @@ contract MixinTransactions is
"FAILED_EXECUTION"
);
// Reset current transaction signer
// TODO: Check if gas is paid when currentContextAddress is already 0.
// Reset current transaction signer if it was previously updated
if (signerAddress != msg.sender) {
currentContextAddress = address(0);
}
}
/// @dev Calculates EIP712 hash of the Transaction.
/// @param salt Arbitrary number to ensure uniqueness of transaction hash.
@ -120,6 +121,7 @@ contract MixinTransactions is
{
bytes32 schemaHash = EIP712_ZEROEX_TRANSACTION_SCHEMA_HASH;
bytes32 dataHash = keccak256(data);
// Assembly for more efficiently computing:
// keccak256(abi.encode(
// EIP712_ZEROEX_TRANSACTION_SCHEMA_HASH,
@ -127,6 +129,7 @@ contract MixinTransactions is
// signerAddress,
// keccak256(data)
// ));
assembly {
let memPtr := mload(64)
mstore(memPtr, schemaHash)