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

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)
+}