added fee payment to matcher if dst.Token === feeToken

src/Unit/Exchange/callGenerators/erc20.ts

@@ -1,9 +1,8 @@
 import { SwapExecutor__factory } from "@orionprotocol/contracts/lib/ethers-v6/index.js"
-import type { BigNumberish } from "ethers"
+import type { BigNumberish, AddressLike } from "ethers"
 import { type CallParams, addCallParams } from "./utils.js"
-import type { AddressLike } from "ethers"
 
-export async function generateTransferCall(
+export function generateTransferCall(
   token: AddressLike,
   target: AddressLike,
   amount: BigNumberish,
@@ -20,7 +19,7 @@ export async function generateTransferCall(
   return addCallParams(calldata, callParams)
 }
 
-export async function generateApproveCall(
+export function generateApproveCall(
   token: AddressLike,
   target: AddressLike,
   amount: BigNumberish,

src/Unit/Exchange/callGenerators/feePayment.ts

@@ -0,0 +1,21 @@
+import { SwapExecutor__factory } from "@orionprotocol/contracts/lib/ethers-v6/index.js"
+import type { BigNumberish, AddressLike } from "ethers"
+import { type CallParams, addCallParams } from "./utils.js"
+
+
+export function generateFeePaymentCall(
+  matcher: AddressLike,
+  token: AddressLike,
+  amount: BigNumberish,
+  callParams?: CallParams
+) {
+
+  const executorInterface = SwapExecutor__factory.createInterface()
+  const calldata = executorInterface.encodeFunctionData('payFeeToMatcher', [
+    matcher,
+    token,
+    amount
+  ])
+  
+  return addCallParams(calldata, callParams)
+}

src/Unit/Exchange/callGenerators/uniswapV2.ts

@@ -36,7 +36,7 @@ export async function generateUni2Calls(
   return calls
 }
 
-export async function generateUni2Call(
+export function generateUni2Call(
   pool: string,
   assetIn: string,
   assetOut: string,