From 484f1ca1b3c74d03590ca5afb62bdb8dcc1ac21f Mon Sep 17 00:00:00 2001
From: galargh <piotr.galar@gmail.com>
Date: Fri, 22 Nov 2024 11:37:43 +0100
Subject: [PATCH] chore: prevent network configuration properties from being
 modified

---
 .../internal/hardhat-ethers-provider/hardhat-ethers-provider.ts | 2 +-
 .../src/internal/hardhat-helpers/hardhat-helpers.ts             | 2 +-
 .../json-rpc-request-modifiers/json-rpc-request-modifier.ts     | 2 +-
 .../builtin-plugins/network-manager/network-connection.ts       | 2 +-
 .../internal/builtin-plugins/network-manager/network-manager.ts | 2 +-
 v-next/hardhat/src/types/network.ts                             | 2 +-
 6 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/v-next/hardhat-ethers/src/internal/hardhat-ethers-provider/hardhat-ethers-provider.ts b/v-next/hardhat-ethers/src/internal/hardhat-ethers-provider/hardhat-ethers-provider.ts
index 39a736b2ba..5c84348fc1 100644
--- a/v-next/hardhat-ethers/src/internal/hardhat-ethers-provider/hardhat-ethers-provider.ts
+++ b/v-next/hardhat-ethers/src/internal/hardhat-ethers-provider/hardhat-ethers-provider.ts
@@ -85,7 +85,7 @@ export class HardhatEthersProvider implements HardhatEthersProviderI {
 
   readonly #hardhatProvider: EthereumProvider;
   readonly #networkName: string;
-  readonly #networkConfig: NetworkConfig;
+  readonly #networkConfig: Readonly<NetworkConfig>;
 
   // event-emitter related fields
   #latestBlockNumberPolled: number | undefined;
diff --git a/v-next/hardhat-ethers/src/internal/hardhat-helpers/hardhat-helpers.ts b/v-next/hardhat-ethers/src/internal/hardhat-helpers/hardhat-helpers.ts
index 3f519c75f1..197f176852 100644
--- a/v-next/hardhat-ethers/src/internal/hardhat-helpers/hardhat-helpers.ts
+++ b/v-next/hardhat-ethers/src/internal/hardhat-helpers/hardhat-helpers.ts
@@ -27,7 +27,7 @@ interface Link {
 export class HardhatHelpers {
   readonly #provider: HardhatEthersProvider;
   readonly #networkName: string;
-  readonly #networkConfig: NetworkConfig;
+  readonly #networkConfig: Readonly<NetworkConfig>;
   readonly #artifactManager: ArtifactsManager;
 
   constructor(
diff --git a/v-next/hardhat/src/internal/builtin-plugins/network-manager/json-rpc-request-modifiers/json-rpc-request-modifier.ts b/v-next/hardhat/src/internal/builtin-plugins/network-manager/json-rpc-request-modifiers/json-rpc-request-modifier.ts
index f44baaacb5..28d552a761 100644
--- a/v-next/hardhat/src/internal/builtin-plugins/network-manager/json-rpc-request-modifiers/json-rpc-request-modifier.ts
+++ b/v-next/hardhat/src/internal/builtin-plugins/network-manager/json-rpc-request-modifiers/json-rpc-request-modifier.ts
@@ -35,7 +35,7 @@ import { isHttpNetworkConfig } from "./utils.js";
  */
 export class JsonRpcRequestModifier {
   readonly #provider: EthereumProvider;
-  readonly #networkConfig: NetworkConfig;
+  readonly #networkConfig: Readonly<NetworkConfig>;
 
   // accounts
   #localAccounts: LocalAccounts | undefined;
diff --git a/v-next/hardhat/src/internal/builtin-plugins/network-manager/network-connection.ts b/v-next/hardhat/src/internal/builtin-plugins/network-manager/network-connection.ts
index 2bd92a87f5..26d301f0f6 100644
--- a/v-next/hardhat/src/internal/builtin-plugins/network-manager/network-connection.ts
+++ b/v-next/hardhat/src/internal/builtin-plugins/network-manager/network-connection.ts
@@ -12,7 +12,7 @@ export class NetworkConnectionImplementation<
 {
   public readonly id: number;
   public readonly networkName: string;
-  public readonly networkConfig: NetworkConfig;
+  public readonly networkConfig: Readonly<NetworkConfig>;
   public readonly chainType: ChainTypeT;
 
   #provider!: EthereumProvider;
diff --git a/v-next/hardhat/src/internal/builtin-plugins/network-manager/network-manager.ts b/v-next/hardhat/src/internal/builtin-plugins/network-manager/network-manager.ts
index 0210facf89..f70ba7c2d4 100644
--- a/v-next/hardhat/src/internal/builtin-plugins/network-manager/network-manager.ts
+++ b/v-next/hardhat/src/internal/builtin-plugins/network-manager/network-manager.ts
@@ -20,7 +20,7 @@ import { isNetworkConfig, validateNetworkConfig } from "./type-validation.js";
 export class NetworkManagerImplementation {
   readonly #defaultNetwork: string;
   readonly #defaultChainType: DefaultChainType;
-  readonly #networkConfigs: Record<string, NetworkConfig>;
+  readonly #networkConfigs: Readonly<Record<string, Readonly<NetworkConfig>>>;
   readonly #hookManager: HookManager;
 
   #nextConnectionId = 0;
diff --git a/v-next/hardhat/src/types/network.ts b/v-next/hardhat/src/types/network.ts
index bc1ccbdce6..22bff2a815 100644
--- a/v-next/hardhat/src/types/network.ts
+++ b/v-next/hardhat/src/types/network.ts
@@ -53,7 +53,7 @@ export interface NetworkConnection<
 > {
   readonly id: number;
   readonly networkName: string;
-  readonly networkConfig: NetworkConfig;
+  readonly networkConfig: Readonly<NetworkConfig>;
   readonly chainType: ChainTypeT;
   readonly provider: EthereumProvider;