feat: entrypoint 0.9 + paymasterSignature

.changeset/proud-doors-cheat.md

@@ -0,0 +1,13 @@
+---
+"viem": minor
+---
+
+Added EntryPoint v0.9 support for Account Abstraction (ERC-4337).
+
+**Features:**
+- Added `entryPoint09Abi` and `entryPoint09Address` constants
+- Added `'0.9'` to `EntryPointVersion` type
+- Added `UserOperation<'0.9'>` with new `paymasterSignature` field for parallelizable paymaster signing
+- Updated `getUserOperationHash` to support v0.9 (uses EIP-712 typed data like v0.8)
+- Updated `toPackedUserOperation` to handle `paymasterSignature`
+- Updated `prepareUserOperation` type definitions for v0.9

src/account-abstraction/actions/bundler/prepareUserOperation.ts

@@ -80,6 +80,12 @@ export type PrepareUserOperationParameterType =
 type FactoryProperties<
   entryPointVersion extends EntryPointVersion = EntryPointVersion,
 > =
+  | (entryPointVersion extends '0.9'
+      ? {
+          factory: UserOperation['factory']
+          factoryData: UserOperation['factoryData']
+        }
+      : never)
   | (entryPointVersion extends '0.8'
       ? {
           factory: UserOperation['factory']
@@ -101,6 +107,15 @@ type FactoryProperties<
 type GasProperties<
   entryPointVersion extends EntryPointVersion = EntryPointVersion,
 > =
+  | (entryPointVersion extends '0.9'
+      ? {
+          callGasLimit: UserOperation['callGasLimit']
+          preVerificationGas: UserOperation['preVerificationGas']
+          verificationGasLimit: UserOperation['verificationGasLimit']
+          paymasterPostOpGasLimit: UserOperation['paymasterPostOpGasLimit']
+          paymasterVerificationGasLimit: UserOperation['paymasterVerificationGasLimit']
+        }
+      : never)
   | (entryPointVersion extends '0.8'
       ? {
           callGasLimit: UserOperation['callGasLimit']
@@ -139,6 +154,14 @@ type NonceProperties = {
 type PaymasterProperties<
   entryPointVersion extends EntryPointVersion = EntryPointVersion,
 > =
+  | (entryPointVersion extends '0.9'
+      ? {
+          paymaster: UserOperation['paymaster']
+          paymasterData: UserOperation['paymasterData']
+          paymasterPostOpGasLimit: UserOperation['paymasterPostOpGasLimit']
+          paymasterVerificationGasLimit: UserOperation['paymasterVerificationGasLimit']
+        }
+      : never)
   | (entryPointVersion extends '0.8'
       ? {
           paymaster: UserOperation['paymaster']