feat(adapters): add type discriminant field to VaultV2 adapter interfaces

Add a `type` string literal field to each adapter interface to enable
easy type narrowing via type assertion instead of instanceof checks.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: Foulks-Plb

packages/blue-sdk/src/vault/v2/VaultV2Adapter.ts

@@ -3,24 +3,28 @@ import type { BigIntish } from "../../types.js";
 import type { CapacityLimit } from "../../utils.js";
 
 export interface IVaultV2Adapter {
+  type: string;
   address: Address;
   parentVault: Address;
   adapterId: Hash;
   skimRecipient: Address;
 }
 
 export abstract class VaultV2Adapter implements IVaultV2Adapter {
+  public readonly type: string;
   public readonly address: Address;
   public readonly parentVault: Address;
   public readonly adapterId: Hash;
   public skimRecipient: Address;
 
   constructor({
+    type,
     address,
     parentVault,
     adapterId,
     skimRecipient,
   }: IVaultV2Adapter) {
+    this.type = type;
     this.address = address;
     this.parentVault = parentVault;
     this.adapterId = adapterId;

packages/blue-sdk/src/vault/v2/VaultV2MorphoMarketV1Adapter.ts

@@ -14,14 +14,17 @@ import type {
 } from "./VaultV2Adapter.js";
 
 export interface IVaultV2MorphoMarketV1Adapter
-  extends Omit<IVaultV2Adapter, "adapterId"> {
+  extends Omit<IVaultV2Adapter, "adapterId" | "type"> {
+  type?: "VaultV2MorphoMarketV1Adapter";
   marketParamsList: IMarketParams[];
 }
 
 export class VaultV2MorphoMarketV1Adapter
   extends VaultV2Adapter
   implements IVaultV2MorphoMarketV1Adapter
 {
+  public declare readonly type: "VaultV2MorphoMarketV1Adapter";
+
   static adapterId(address: Address) {
     return keccak256(
       encodeAbiParameters(
@@ -57,6 +60,7 @@ export class VaultV2MorphoMarketV1Adapter
   }: IVaultV2MorphoMarketV1Adapter) {
     super({
       ...vaultV2Adapter,
+      type: "VaultV2MorphoMarketV1Adapter",
       adapterId: VaultV2MorphoMarketV1Adapter.adapterId(vaultV2Adapter.address),
     });
 

packages/blue-sdk/src/vault/v2/VaultV2MorphoMarketV1AdapterV2.ts

@@ -13,7 +13,8 @@ import type {
 } from "./VaultV2Adapter.js";
 
 export interface IVaultV2MorphoMarketV1AdapterV2
-  extends Omit<IVaultV2Adapter, "adapterId"> {
+  extends Omit<IVaultV2Adapter, "adapterId" | "type"> {
+  type?: "VaultV2MorphoMarketV1AdapterV2";
   marketIds: MarketId[];
   adaptiveCurveIrm: Address;
   supplyShares: Record<MarketId, bigint>;
@@ -23,6 +24,8 @@ export class VaultV2MorphoMarketV1AdapterV2
   extends VaultV2Adapter
   implements IVaultV2MorphoMarketV1AdapterV2
 {
+  public declare readonly type: "VaultV2MorphoMarketV1AdapterV2";
+
   static adapterId(address: Address) {
     return keccak256(
       encodeAbiParameters(
@@ -62,6 +65,7 @@ export class VaultV2MorphoMarketV1AdapterV2
   }: IVaultV2MorphoMarketV1AdapterV2) {
     super({
       ...vaultV2Adapter,
+      type: "VaultV2MorphoMarketV1AdapterV2",
       adapterId: VaultV2MorphoMarketV1AdapterV2.adapterId(
         vaultV2Adapter.address,
       ),

packages/blue-sdk/src/vault/v2/VaultV2MorphoVaultV1Adapter.ts

@@ -3,7 +3,8 @@ import { type Address, type Hex, encodeAbiParameters, keccak256 } from "viem";
 import { VaultV2Adapter } from "./VaultV2Adapter.js";
 
 export interface IVaultV2MorphoVaultV1Adapter
-  extends Omit<IVaultV2Adapter, "adapterId"> {
+  extends Omit<IVaultV2Adapter, "adapterId" | "type"> {
+  type?: "VaultV2MorphoVaultV1Adapter";
   morphoVaultV1: Address;
 }
 
@@ -18,6 +19,8 @@ export class VaultV2MorphoVaultV1Adapter
   extends VaultV2Adapter
   implements IVaultV2MorphoVaultV1Adapter
 {
+  public declare readonly type: "VaultV2MorphoVaultV1Adapter";
+
   static adapterId(address: Address) {
     return keccak256(
       encodeAbiParameters(
@@ -35,6 +38,7 @@ export class VaultV2MorphoVaultV1Adapter
   }: IVaultV2MorphoVaultV1Adapter) {
     super({
       ...vaultV2Adapter,
+      type: "VaultV2MorphoVaultV1Adapter",
       adapterId: VaultV2MorphoVaultV1Adapter.adapterId(vaultV2Adapter.address),
     });