order state tweak

src/OrderLib.sol

@@ -21,9 +21,8 @@ library OrderLib {
 
     event DexorderSwapError (uint64 orderIndex, string reason);
 
-    // todo If a tranche fails to fill, an order can stay Open forever without any active tranches. maybe replace state with a simple canceled flag
     enum SwapOrderState {
-        Open, Canceled, Filled, Template
+        Open, Canceled, Filled, Expired // Expired isn't ever shown on-chain. the Expired state is implied by tranche constraints.
     }
 
     enum Exchange {
@@ -297,7 +296,7 @@ library OrderLib {
 
     function _cancelOrder(OrdersInfo storage self, uint64 orderIndex) internal {
         SwapOrderState state = self.orders[orderIndex].state;
-        if( state == SwapOrderState.Open || state == SwapOrderState.Template ) {
+        if( state == SwapOrderState.Open ) {
             self.orders[orderIndex].state = SwapOrderState.Canceled;
             emit DexorderSwapCompleted(orderIndex);
         }

src/OrderStatus.sol

@@ -1,11 +0,0 @@
-// SPDX-License-Identifier: UNLICENSED
-pragma solidity =0.7.6;
-pragma abicoder v2;
-
-
-enum OrderStatus {
-    ACTIVE,   // the only status while the order is still executing
-    CANCELED, // canceled by the owner
-    FILLED,   // full trade amount was filled
-    EXPIRED   // trade ended without completing its fills
-}

src/VaultAddress.sol

@@ -10,7 +10,7 @@ library VaultAddress {
     // keccak-256 hash of the Vault's bytecode (not the deployed bytecode but the initialization bytecode)
     // can paste into:
     // https://emn178.github.io/online-tools/keccak_256.html
-    bytes32 internal constant VAULT_INIT_CODE_HASH = 0x40d5f4d1aa2f505a4b156599c452d0e7df5003430246ca5798a932dc031a9127;
+    bytes32 internal constant VAULT_INIT_CODE_HASH = 0xe5ccc5781ec7c9aa6e1ca21f73022e0b4606f22aca8dde4e455fd8051007d378;
 
     // the contract being constructed must not have any constructor arguments or the determinism will be broken.  instead, use a callback to
     // get construction arguments