feat(uniswapx-sdk): Implement Dutch V3

sdks/uniswapx-sdk/src/builder/V2DutchOrderBuilder.test.ts

@@ -349,7 +349,7 @@ describe("V2DutchOrderBuilder", () => {
  .outputOverrides([OUTPUT_START_AMOUNT.mul(102).div(100)])
  .build()
  ).toThrow(
- "Invariant failed: inputOverride not set or larger than original input"
+ "Invariant failed: inputOverride larger than original input"
  );
  });
 
@@ -574,7 +574,7 @@ describe("V2DutchOrderBuilder", () => {
  });
 
  describe("partial order tests", () => {
- it("builds an unsigned partial order with default cosignerData values", () => {
+ it("builds an unsigned partial order with default cosignerData values", () => { //TODO: partial orders don't have cosignerData...
  const deadline = Math.floor(Date.now() / 1000) + 1000;
  const order = builder
  .cosigner(constants.AddressZero)

sdks/uniswapx-sdk/src/builder/V2DutchOrderBuilder.ts

@@ -11,7 +11,7 @@ import {
  UnsignedV2DutchOrder,
 } from "../order";
 import { ValidationInfo } from "../order/validation";
-import { getPermit2, getReactor } from "../utils";
+import { getPermit2, getReactor, isCosignedV2 } from "../utils";
 
 import { OrderBuilder } from "./OrderBuilder";
 
@@ -40,7 +40,7 @@ export class V2DutchOrderBuilder extends OrderBuilder {
  builder.output(output);
  }
 
- if (isCosigned(order)) {
+ if (isCosignedV2(order)) {
  builder.cosignature(order.info.cosignature);
  builder.decayEndTime(order.info.cosignerData.decayEndTime);
  builder.decayStartTime(order.info.cosignerData.decayStartTime);
@@ -287,9 +287,9 @@ export class V2DutchOrderBuilder extends OrderBuilder {
  "exclusivityOverrideBps not set"
  );
  invariant(
- this.info.cosignerData.inputOverride !== undefined &&
+ this.info.cosignerData.inputOverride !== undefined && // inputOverride is defaulted to 0 because enforced to be of type BigNumber
  this.info.cosignerData.inputOverride.lte(this.info.input.startAmount),
- "inputOverride not set or larger than original input"
+ "inputOverride larger than original input"
  );
  invariant(
  this.info.cosignerData.outputOverrides.length > 0,
@@ -339,9 +339,3 @@ export class V2DutchOrderBuilder extends OrderBuilder {
  };
  }
 }
-
-function isCosigned(
- order: UnsignedV2DutchOrder | CosignedV2DutchOrder
-): order is CosignedV2DutchOrder {
- return (order as CosignedV2DutchOrder).info.cosignature !== undefined;
-}