feat(world): world kernel inherits IModuleErrors (#2380)

.changeset/strange-cheetahs-drop.md

@@ -0,0 +1,5 @@
+---
+"@latticexyz/world": patch
+---
+
+`IWorldKernel` now inherits `IModuleErrors` so it can render the correct errors if the World reverts when delegatecalled with Module code.

docs/pages/world/reference/module-external.mdx

@@ -5,7 +5,7 @@
 [Git Source](https://github.com/latticexyz/mud/blob/main/packages/world/src/IModule.sol)
 
 **Inherits:**
-[IERC165](/world/reference/internal/erc165-external#ierc165)
+[IERC165](/world/reference/internal/erc165-external#ierc165), [IModuleErrors](/src/IModuleErrors.sol/interface.IModuleErrors.md)
 
 _Interface for the Module system.
 A module can be installed within the context of a world, either as a root or non-root module.
@@ -47,31 +47,3 @@ function install(bytes memory encodedArgs) external;
 | Name          | Type    | Description                                                                   |
 | ------------- | ------- | ----------------------------------------------------------------------------- |
 | `encodedArgs` | `bytes` | The ABI encoded arguments that may be needed during the installation process. |
-
-### Errors
-
-#### Module_RootInstallNotSupported
-
-_Errors to represent non-support of specific installation types._
-
-```solidity
-error Module_RootInstallNotSupported();
-```
-
-#### Module_NonRootInstallNotSupported
-
-```solidity
-error Module_NonRootInstallNotSupported();
-```
-
-#### Module_AlreadyInstalled
-
-```solidity
-error Module_AlreadyInstalled();
-```
-
-#### Module_MissingDependency
-
-```solidity
-error Module_MissingDependency(address dependency);
-```

docs/pages/world/reference/world-external.mdx

@@ -591,12 +591,15 @@ function callFrom(
 [Git Source](https://github.com/latticexyz/mud/blob/main/packages/world/src/IWorldKernel.sol)
 
 **Inherits:**
-[IWorldModuleInstallation](/world/reference/world-external#iworldmoduleinstallation), [IWorldCall](/world/reference/world-external#iworldcall), [IWorldErrors](/world/reference/world-external#iworlderrors), [IWorldEvents](/src/IWorldEvents.sol/interface.IWorldEvents.md)
+[IWorldModuleInstallation](/world/reference/world-external#iworldmoduleinstallation), [IWorldCall](/world/reference/world-external#iworldcall), [IWorldErrors](/world/reference/world-external#iworlderrors), [IWorldEvents](/src/IWorldEvents.sol/interface.IWorldEvents.md), [IModuleErrors](/src/IModuleErrors.sol/interface.IModuleErrors.md)
 
 The IWorldKernel interface includes all methods that are part of the World contract's
 internal bytecode. Consumers should use the `IBaseWorld` interface instead, which includes dynamically
 registered functions selectors from the `InitModule`.
 
+_The IWorldKernel interface inherits IModuleErrors because the world can be delegatecalled with module code,
+so it's ABI should include these errors._
+
 ### Functions
 
 #### worldVersion

packages/world-modules/test/KeysInTableModule.t.sol

@@ -13,6 +13,7 @@ import { SchemaType } from "@latticexyz/schema-type/src/solidity/SchemaType.sol"
 
 import { World } from "@latticexyz/world/src/World.sol";
 import { IModule } from "@latticexyz/world/src/IModule.sol";
+import { IModuleErrors } from "@latticexyz/world/src/IModule.sol";
 import { IBaseWorld } from "@latticexyz/world/src/codegen/interfaces/IBaseWorld.sol";
 import { ResourceId, WorldResourceIdLib, WorldResourceIdInstance } from "@latticexyz/world/src/WorldResourceId.sol";
 import { ROOT_NAMESPACE } from "@latticexyz/world/src/constants.sol";
@@ -163,7 +164,7 @@ contract KeysInTableModuleTest is Test, GasReporter {
 
   function testInstallTwice() public {
     world.installRootModule(keysInTableModule, abi.encode(tableId));
-    vm.expectRevert(IModule.Module_AlreadyInstalled.selector);
+    vm.expectRevert(IModuleErrors.Module_AlreadyInstalled.selector);
     world.installRootModule(keysInTableModule, abi.encode(tableId));
   }
 

packages/world-modules/test/KeysWithValueModule.t.sol

@@ -16,6 +16,7 @@ import { FieldLayoutEncodeHelper } from "@latticexyz/store/test/FieldLayoutEncod
 
 import { World } from "@latticexyz/world/src/World.sol";
 import { IModule } from "@latticexyz/world/src/IModule.sol";
+import { IModuleErrors } from "@latticexyz/world/src/IModuleErrors.sol";
 import { IBaseWorld } from "@latticexyz/world/src/codegen/interfaces/IBaseWorld.sol";
 import { WorldResourceIdLib, WorldResourceIdInstance, NAME_BITS, TYPE_BITS } from "@latticexyz/world/src/WorldResourceId.sol";
 import { ROOT_NAMESPACE } from "@latticexyz/world/src/constants.sol";
@@ -115,7 +116,7 @@ contract KeysWithValueModuleTest is Test, GasReporter {
     );
 
     world.installRootModule(keysWithValueModule, abi.encode(sourceTableId));
-    vm.expectRevert(IModule.Module_AlreadyInstalled.selector);
+    vm.expectRevert(IModuleErrors.Module_AlreadyInstalled.selector);
     world.installRootModule(keysWithValueModule, abi.encode(sourceTableId));
   }
 

packages/world-modules/test/UniqueEntityModule.t.sol

@@ -7,6 +7,7 @@ import { GasReporter } from "@latticexyz/gas-report/src/GasReporter.sol";
 import { StoreSwitch } from "@latticexyz/store/src/StoreSwitch.sol";
 import { World } from "@latticexyz/world/src/World.sol";
 import { IModule } from "@latticexyz/world/src/IModule.sol";
+import { IModuleErrors } from "@latticexyz/world/src/IModuleErrors.sol";
 import { IBaseWorld } from "@latticexyz/world/src/codegen/interfaces/IBaseWorld.sol";
 import { IWorldErrors } from "@latticexyz/world/src/IWorldErrors.sol";
 import { System } from "@latticexyz/world/src/System.sol";
@@ -60,7 +61,7 @@ contract UniqueEntityModuleTest is Test, GasReporter {
 
   function testInstallTwice() public {
     world.installModule(uniqueEntityModule, new bytes(0));
-    vm.expectRevert(IModule.Module_AlreadyInstalled.selector);
+    vm.expectRevert(IModuleErrors.Module_AlreadyInstalled.selector);
     world.installModule(uniqueEntityModule, new bytes(0));
   }
 
@@ -84,7 +85,7 @@ contract UniqueEntityModuleTest is Test, GasReporter {
 
   function testInstallRootTwice() public {
     world.installRootModule(uniqueEntityModule, new bytes(0));
-    vm.expectRevert(IModule.Module_AlreadyInstalled.selector);
+    vm.expectRevert(IModuleErrors.Module_AlreadyInstalled.selector);
     world.installRootModule(uniqueEntityModule, new bytes(0));
   }
 

packages/world/src/IModule.sol

@@ -2,6 +2,7 @@
 pragma solidity >=0.8.24;
 
 import { IERC165 } from "./IERC165.sol";
+import { IModuleErrors } from "./IModuleErrors.sol";
 
 /**
  * @title IModule
@@ -10,13 +11,7 @@ import { IERC165 } from "./IERC165.sol";
  * A module can be installed within the context of a world, either as a root or non-root module.
  * This interface adheres to the ERC-165 standard for determining interface support.
  */
-interface IModule is IERC165 {
-  /// @dev Errors to represent non-support of specific installation types.
-  error Module_RootInstallNotSupported();
-  error Module_NonRootInstallNotSupported();
-  error Module_AlreadyInstalled();
-  error Module_MissingDependency(address dependency);
-
+interface IModule is IERC165, IModuleErrors {
   /**
    * @notice Installs the module as a root module.
    * @dev This function is invoked by the World contract during `installRootModule` process.

packages/world/src/IModuleErrors.sol

@@ -0,0 +1,17 @@
+// SPDX-License-Identifier: MIT
+pragma solidity >=0.8.24;
+
+/**
+ * @title IModuleErrors
+ * @author MUD (https://mud.dev) by Lattice (https://lattice.xyz)
+ * @notice This interface includes errors for the Module library.
+ * @dev We bundle these errors in an interface (instead of at the file-level or in their corresponding library) so they can be inherited by IWorldKernel.
+ * This ensures that all errors are included in the IWorldKernel ABI for proper decoding in the frontend.
+ */
+interface IModuleErrors {
+  /// @dev Errors to represent non-support of specific installation types.
+  error Module_RootInstallNotSupported();
+  error Module_NonRootInstallNotSupported();
+  error Module_AlreadyInstalled();
+  error Module_MissingDependency(address dependency);
+}

packages/world/src/IWorldKernel.sol

@@ -4,6 +4,7 @@ pragma solidity >=0.8.24;
 import { IWorldErrors } from "./IWorldErrors.sol";
 import { IModule } from "./IModule.sol";
 import { ResourceId } from "./WorldResourceId.sol";
+import { IModuleErrors } from "./IModuleErrors.sol";
 import { IWorldEvents } from "./IWorldEvents.sol";
 
 /**
@@ -59,8 +60,10 @@ interface IWorldCall {
  * @notice The IWorldKernel interface includes all methods that are part of the World contract's
  * internal bytecode. Consumers should use the `IBaseWorld` interface instead, which includes dynamically
  * registered functions selectors from the `InitModule`.
+ * @dev The IWorldKernel interface inherits IModuleErrors because the world can be delegatecalled with module code,
+ * so it's ABI should include these errors.
  */
-interface IWorldKernel is IWorldModuleInstallation, IWorldCall, IWorldErrors, IWorldEvents {
+interface IWorldKernel is IWorldModuleInstallation, IWorldCall, IWorldErrors, IWorldEvents, IModuleErrors {
   /**
    * @notice Retrieve the version of the World.
    * @return The version identifier of the World.