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-rw-r--r--packages/contracts/src/2.0.0/protocol/Exchange/libs/LibAbiEncoder.sol11
1 files changed, 4 insertions, 7 deletions
diff --git a/packages/contracts/src/2.0.0/protocol/Exchange/libs/LibAbiEncoder.sol b/packages/contracts/src/2.0.0/protocol/Exchange/libs/LibAbiEncoder.sol
index 507e69712..704c7061c 100644
--- a/packages/contracts/src/2.0.0/protocol/Exchange/libs/LibAbiEncoder.sol
+++ b/packages/contracts/src/2.0.0/protocol/Exchange/libs/LibAbiEncoder.sol
@@ -24,10 +24,6 @@ import "./LibOrder.sol";
contract LibAbiEncoder {
- // solhint-disable max-line-length
- bytes4 constant internal FILL_ORDER_SELECTOR = bytes4(keccak256("fillOrder((address,address,address,address,uint256,uint256,uint256,uint256,uint256,uint256,bytes,bytes),uint256,bytes)"));
- // solhint-enable max-line-length
-
/// @dev ABI encodes calldata for `fillOrder` in memory and returns the address range.
/// This range can be passed into `call` or `delegatecall` to invoke an external
/// call to `fillOrder`.
@@ -42,6 +38,7 @@ contract LibAbiEncoder {
bytes memory signature
)
public
+ pure
returns (bytes memory fillOrderCalldata)
{
// We need to call MExchangeCore.fillOrder using a delegatecall in
@@ -83,8 +80,6 @@ contract LibAbiEncoder {
// [1]: https://solidity.readthedocs.io/en/develop/abi-spec.html
- bytes4 fillOrderSelector = FILL_ORDER_SELECTOR;
-
assembly {
// Areas below may use the following variables:
@@ -99,8 +94,10 @@ contract LibAbiEncoder {
/////// Setup Header Area ///////
// Load free memory pointer
fillOrderCalldata := mload(0x40)
+ // bytes4(keccak256("fillOrder((address,address,address,address,uint256,uint256,uint256,uint256,uint256,uint256,bytes,bytes),uint256,bytes)"))
+ // = 0xb4be83d5
// Leave 0x20 bytes to store the length
- mstore(add(fillOrderCalldata, 0x20), fillOrderSelector)
+ mstore(add(fillOrderCalldata, 0x20), 0xb4be83d500000000000000000000000000000000000000000000000000000000)
let headerAreaEnd := add(fillOrderCalldata, 0x24)
/////// Setup Params Area ///////