refactor(store,world): replace isStore with storeAddress

.changeset/selfish-cycles-retire.md

@@ -0,0 +1,23 @@
+---
+"@latticexyz/std-contracts": minor
+"@latticexyz/store": minor
+"@latticexyz/world": minor
+---
+
+Rename `MudV2Test` to `MudTest` and move from `@latticexyz/std-contracts` to `@latticexyz/store`.
+
+```solidity
+// old import
+import { MudV2Test } from "@latticexyz/std-contracts/src/test/MudV2Test.t.sol";
+// new import
+import { MudTest } from "@latticexyz/store/src/MudTest.sol";
+```
+
+Refactor `StoreSwitch` to use a storage slot instead of `function isStore()` to determine which contract is Store:
+
+- Previously `StoreSwitch` called `isStore()` on `msg.sender` to determine if `msg.sender` is a `Store` contract. If the call succeeded, the `Store` methods were called on `msg.sender`, otherwise the data was written to the own storage.
+- With this change `StoreSwitch` instead checks for an `address` in a known storage slot. If the address equals the own address, data is written to the own storage. If it is an external address, `Store` methods are called on this address. If it is unset (`address(0)`), store methods are called on `msg.sender`.
+- In practice this has the same effect as before: By default the `World` contracts sets its own address in `StoreSwitch`, while `System` contracts keep the Store address undefined, so `Systems` write to their caller (`World`) if they are executed via `call` or directly to the `World` storage if they are executed via `delegatecall`.
+- Besides gas savings, this change has two additional benefits:
+  1. it is now possible for `Systems` to explicitly set a `Store` address to make them exclusive to that `Store` and
+  2. table libraries can now be used in tests without having to provide an explicit `Store` argument, because the `MudTest` base contract redirects reads and writes to the internal `World` contract.

docs/pages/world/world-101.mdx

@@ -256,11 +256,11 @@ Create a new file named `MySystemTest.t.sol` in the `test` folder.
 pragma solidity >=0.8.0;
 
 import "forge-std/Test.sol";
-import { MudV2Test } from "@latticexyz/std-contracts/src/test/MudV2Test.t.sol";
+import { MudTest } from "@latticexyz/store/src/MudTest.sol";
 import { IWorld } from "../src/codegen/world/IWorld.sol";
 import { Dog } from "../src/codegen/Tables.sol";
 
-contract MySystemTest is MudV2Test {
+contract MySystemTest is MudTest {
   IWorld world;
 
   function setUp() public override {
@@ -273,8 +273,8 @@ contract MySystemTest is MudV2Test {
     // this will call the addEntry function on MySystem
     bytes32 key = world.addEntry("bob", "blue");
     // Expect the value retrieved from the Dog at the corresponding key to match "bob" and "blue"
-    string memory name = Dog.getName(world, key);
-    string memory color = Dog.getColor(world, key);
+    string memory name = Dog.getName(key);
+    string memory color = Dog.getColor(key);
     assertEq(name, "bob");
     assertEq(color, "blue");
   }

e2e/packages/contracts/package.json

@@ -20,7 +20,6 @@
     "@latticexyz/cli": "link:../../../packages/cli",
     "@latticexyz/config": "link:../../../packages/config",
     "@latticexyz/schema-type": "link:../../../packages/schema-type",
-    "@latticexyz/std-contracts": "link:../../../packages/std-contracts",
     "@latticexyz/store": "link:../../../packages/store",
     "@latticexyz/world": "link:../../../packages/world",
     "@typechain/ethers-v5": "^10.2.0",

e2e/packages/contracts/test/Worldgen.t.sol

@@ -1,12 +1,12 @@
 // SPDX-License-Identifier: MIT
 pragma solidity >=0.8.0;
 
-import { MudV2Test } from "@latticexyz/std-contracts/src/test/MudV2Test.t.sol";
+import { MudTest } from "@latticexyz/store/src/MudTest.sol";
 
 import { ICustomErrorsSystem } from "../src/codegen/world/ICustomErrorsSystem.sol";
 import { Position } from "../src/CustomTypes.sol";
 
-contract WorldgenTest is MudV2Test {
+contract WorldgenTest is MudTest {
   function testError1WasGenerated() public {
     vm.expectRevert();
     revert ICustomErrorsSystem.TestError1();

e2e/packages/contracts/types/ethers-contracts/IWorld.ts

@@ -45,7 +45,6 @@ export interface IWorldInterface extends utils.Interface {
     "grantAccess(bytes16,bytes16,address)": FunctionFragment;
     "installModule(address,bytes)": FunctionFragment;
     "installRootModule(address,bytes)": FunctionFragment;
-    "isStore()": FunctionFragment;
     "pop()": FunctionFragment;
     "popFromField(bytes16,bytes16,bytes32[],uint8,uint256)": FunctionFragment;
     "popFromField(bytes32,bytes32[],uint8,uint256)": FunctionFragment;
@@ -93,7 +92,6 @@ export interface IWorldInterface extends utils.Interface {
       | "grantAccess"
       | "installModule"
       | "installRootModule"
-      | "isStore"
       | "pop"
       | "popFromField(bytes16,bytes16,bytes32[],uint8,uint256)"
       | "popFromField(bytes32,bytes32[],uint8,uint256)"
@@ -225,7 +223,6 @@ export interface IWorldInterface extends utils.Interface {
     functionFragment: "installRootModule",
     values: [PromiseOrValue<string>, PromiseOrValue<BytesLike>]
   ): string;
-  encodeFunctionData(functionFragment: "isStore", values?: undefined): string;
   encodeFunctionData(functionFragment: "pop", values?: undefined): string;
   encodeFunctionData(
     functionFragment: "popFromField(bytes16,bytes16,bytes32[],uint8,uint256)",
@@ -491,7 +488,6 @@ export interface IWorldInterface extends utils.Interface {
     functionFragment: "installRootModule",
     data: BytesLike
   ): Result;
-  decodeFunctionResult(functionFragment: "isStore", data: BytesLike): Result;
   decodeFunctionResult(functionFragment: "pop", data: BytesLike): Result;
   decodeFunctionResult(
     functionFragment: "popFromField(bytes16,bytes16,bytes32[],uint8,uint256)",
@@ -789,8 +785,6 @@ export interface IWorld extends BaseContract {
       overrides?: Overrides & { from?: PromiseOrValue<string> }
     ): Promise<ContractTransaction>;
 
-    isStore(overrides?: CallOverrides): Promise<[void]>;
-
     pop(
       overrides?: Overrides & { from?: PromiseOrValue<string> }
     ): Promise<ContractTransaction>;
@@ -1097,8 +1091,6 @@ export interface IWorld extends BaseContract {
     overrides?: Overrides & { from?: PromiseOrValue<string> }
   ): Promise<ContractTransaction>;
 
-  isStore(overrides?: CallOverrides): Promise<void>;
-
   pop(
     overrides?: Overrides & { from?: PromiseOrValue<string> }
   ): Promise<ContractTransaction>;
@@ -1405,8 +1397,6 @@ export interface IWorld extends BaseContract {
       overrides?: CallOverrides
     ): Promise<void>;
 
-    isStore(overrides?: CallOverrides): Promise<void>;
-
     pop(overrides?: CallOverrides): Promise<void>;
 
     "popFromField(bytes16,bytes16,bytes32[],uint8,uint256)"(
@@ -1758,8 +1748,6 @@ export interface IWorld extends BaseContract {
       overrides?: Overrides & { from?: PromiseOrValue<string> }
     ): Promise<BigNumber>;
 
-    isStore(overrides?: CallOverrides): Promise<BigNumber>;
-
     pop(
       overrides?: Overrides & { from?: PromiseOrValue<string> }
     ): Promise<BigNumber>;
@@ -2067,8 +2055,6 @@ export interface IWorld extends BaseContract {
       overrides?: Overrides & { from?: PromiseOrValue<string> }
     ): Promise<PopulatedTransaction>;
 
-    isStore(overrides?: CallOverrides): Promise<PopulatedTransaction>;
-
     pop(
       overrides?: Overrides & { from?: PromiseOrValue<string> }
     ): Promise<PopulatedTransaction>;

e2e/packages/contracts/types/ethers-contracts/factories/IWorld__factory.ts

@@ -717,13 +717,6 @@ const _abi = [
     stateMutability: "nonpayable",
     type: "function",
   },
-  {
-    inputs: [],
-    name: "isStore",
-    outputs: [],
-    stateMutability: "view",
-    type: "function",
-  },
   {
     inputs: [],
     name: "pop",

examples/minimal/packages/contracts/package.json

@@ -26,7 +26,6 @@
     "@latticexyz/config": "link:../../../../packages/config",
     "@latticexyz/schema-type": "link:../../../../packages/schema-type",
     "@latticexyz/solecs": "link:../../../../packages/solecs",
-    "@latticexyz/std-contracts": "link:../../../../packages/std-contracts",
     "@latticexyz/store": "link:../../../../packages/store",
     "@latticexyz/world": "link:../../../../packages/world",
     "@solidstate/contracts": "^0.0.52",

examples/minimal/packages/contracts/test/ChatNamespaced.t.sol

@@ -2,15 +2,15 @@
 pragma solidity >=0.8.0;
 
 import "forge-std/Test.sol";
-import { MudV2Test } from "@latticexyz/std-contracts/src/test/MudV2Test.t.sol";
+import { MudTest } from "@latticexyz/store/src/MudTest.sol";
 import { getKeysWithValue } from "@latticexyz/world/src/modules/keyswithvalue/getKeysWithValue.sol";
 import { StoreCore } from "@latticexyz/store/src/StoreCore.sol";
 
 import { IWorld } from "../src/codegen/world/IWorld.sol";
 import { MessageTable, MessageTableTableId } from "../src/codegen/Tables.sol";
 import { IChatNamespacedSystem } from "../src/interfaces/IChatNamespacedSystem.sol";
 
-contract ChatNamespacedTest is MudV2Test {
+contract ChatNamespacedTest is MudTest {
   function testEmitEphemeral() public {
     bytes32[] memory keyTuple;
     vm.expectEmit(true, true, true, true);

examples/minimal/packages/contracts/test/CounterTest.t.sol

@@ -2,15 +2,15 @@
 pragma solidity >=0.8.0;
 
 import "forge-std/Test.sol";
-import { MudV2Test } from "@latticexyz/std-contracts/src/test/MudV2Test.t.sol";
+import { MudTest } from "@latticexyz/store/src/MudTest.sol";
 import { getKeysWithValue } from "@latticexyz/world/src/modules/keyswithvalue/getKeysWithValue.sol";
 
 import { IWorld } from "../src/codegen/world/IWorld.sol";
 import { CounterTable, CounterTableTableId } from "../src/codegen/Tables.sol";
 
 import { SingletonKey } from "../src/systems/IncrementSystem.sol";
 
-contract CounterTest is MudV2Test {
+contract CounterTest is MudTest {
   IWorld world;
 
   function setUp() public override {
@@ -30,19 +30,19 @@ contract CounterTest is MudV2Test {
   function testCounter() public {
     // Expect the counter to be 1 because it was incremented in the PostDeploy script.
     bytes32 key = SingletonKey;
-    uint32 counter = CounterTable.get(world, key);
+    uint32 counter = CounterTable.get(key);
     assertEq(counter, 1);
 
     // Expect the counter to be 2 after calling increment.
     world.increment();
-    counter = CounterTable.get(world, key);
+    counter = CounterTable.get(key);
     assertEq(counter, 2);
   }
 
   function testKeysWithValue() public {
     bytes32 key = SingletonKey;
-    uint32 counter = CounterTable.get(world, key);
-    bytes32[] memory keysWithValue = getKeysWithValue(world, CounterTableTableId, CounterTable.encode(counter));
+    uint32 counter = CounterTable.get(key);
+    bytes32[] memory keysWithValue = getKeysWithValue(CounterTableTableId, CounterTable.encode(counter));
     assertEq(keysWithValue.length, 1);
   }
 }

examples/minimal/packages/contracts/test/StructTest.t.sol

@@ -2,14 +2,14 @@
 pragma solidity >=0.8.0;
 
 import "forge-std/Test.sol";
-import { MudV2Test } from "@latticexyz/std-contracts/src/test/MudV2Test.t.sol";
+import { MudTest } from "@latticexyz/store/src/MudTest.sol";
 import { getKeysWithValue } from "@latticexyz/world/src/modules/keyswithvalue/getKeysWithValue.sol";
 
 import { IWorld } from "../src/codegen/world/IWorld.sol";
 import { CounterTable, CounterTableTableId } from "../src/codegen/Tables.sol";
 import { BytesStruct, StringStruct } from "../src/systems/structs.sol";
 
-contract StructTest is MudV2Test {
+contract StructTest is MudTest {
   IWorld world;
 
   function setUp() public override {

examples/minimal/packages/contracts/types/ethers-contracts/IWorld.ts

@@ -56,7 +56,6 @@ export interface IWorldInterface extends utils.Interface {
     "increment()": FunctionFragment;
     "installModule(address,bytes)": FunctionFragment;
     "installRootModule(address,bytes)": FunctionFragment;
-    "isStore()": FunctionFragment;
     "pickUp(uint32,uint32)": FunctionFragment;
     "popFromField(bytes16,bytes16,bytes32[],uint8,uint256)": FunctionFragment;
     "popFromField(bytes32,bytes32[],uint8,uint256)": FunctionFragment;
@@ -107,7 +106,6 @@ export interface IWorldInterface extends utils.Interface {
       | "increment"
       | "installModule"
       | "installRootModule"
-      | "isStore"
       | "pickUp"
       | "popFromField(bytes16,bytes16,bytes32[],uint8,uint256)"
       | "popFromField(bytes32,bytes32[],uint8,uint256)"
@@ -248,7 +246,6 @@ export interface IWorldInterface extends utils.Interface {
     functionFragment: "installRootModule",
     values: [PromiseOrValue<string>, PromiseOrValue<BytesLike>]
   ): string;
-  encodeFunctionData(functionFragment: "isStore", values?: undefined): string;
   encodeFunctionData(
     functionFragment: "pickUp",
     values: [PromiseOrValue<BigNumberish>, PromiseOrValue<BigNumberish>]
@@ -526,7 +523,6 @@ export interface IWorldInterface extends utils.Interface {
     functionFragment: "installRootModule",
     data: BytesLike
   ): Result;
-  decodeFunctionResult(functionFragment: "isStore", data: BytesLike): Result;
   decodeFunctionResult(functionFragment: "pickUp", data: BytesLike): Result;
   decodeFunctionResult(
     functionFragment: "popFromField(bytes16,bytes16,bytes32[],uint8,uint256)",
@@ -847,8 +843,6 @@ export interface IWorld extends BaseContract {
       overrides?: Overrides & { from?: PromiseOrValue<string> }
     ): Promise<ContractTransaction>;
 
-    isStore(overrides?: CallOverrides): Promise<[void]>;
-
     pickUp(
       item: PromiseOrValue<BigNumberish>,
       itemVariant: PromiseOrValue<BigNumberish>,
@@ -1169,8 +1163,6 @@ export interface IWorld extends BaseContract {
     overrides?: Overrides & { from?: PromiseOrValue<string> }
   ): Promise<ContractTransaction>;
 
-  isStore(overrides?: CallOverrides): Promise<void>;
-
   pickUp(
     item: PromiseOrValue<BigNumberish>,
     itemVariant: PromiseOrValue<BigNumberish>,
@@ -1489,8 +1481,6 @@ export interface IWorld extends BaseContract {
       overrides?: CallOverrides
     ): Promise<void>;
 
-    isStore(overrides?: CallOverrides): Promise<void>;
-
     pickUp(
       item: PromiseOrValue<BigNumberish>,
       itemVariant: PromiseOrValue<BigNumberish>,
@@ -1856,8 +1846,6 @@ export interface IWorld extends BaseContract {
       overrides?: Overrides & { from?: PromiseOrValue<string> }
     ): Promise<BigNumber>;
 
-    isStore(overrides?: CallOverrides): Promise<BigNumber>;
-
     pickUp(
       item: PromiseOrValue<BigNumberish>,
       itemVariant: PromiseOrValue<BigNumberish>,
@@ -2179,8 +2167,6 @@ export interface IWorld extends BaseContract {
       overrides?: Overrides & { from?: PromiseOrValue<string> }
     ): Promise<PopulatedTransaction>;
 
-    isStore(overrides?: CallOverrides): Promise<PopulatedTransaction>;
-
     pickUp(
       item: PromiseOrValue<BigNumberish>,
       itemVariant: PromiseOrValue<BigNumberish>,

examples/minimal/packages/contracts/types/ethers-contracts/factories/IWorld__factory.ts

@@ -732,13 +732,6 @@ const _abi = [
     stateMutability: "nonpayable",
     type: "function",
   },
-  {
-    inputs: [],
-    name: "isStore",
-    outputs: [],
-    stateMutability: "view",
-    type: "function",
-  },
   {
     inputs: [
       {

packages/store/abi/IStore.sol/IStore.abi.json

@@ -428,13 +428,6 @@
     "stateMutability": "view",
     "type": "function"
   },
-  {
-    "inputs": [],
-    "name": "isStore",
-    "outputs": [],
-    "stateMutability": "view",
-    "type": "function"
-  },
   {
     "inputs": [
       {

packages/store/abi/IStore.sol/IStoreData.abi.json

@@ -290,13 +290,6 @@
     "stateMutability": "view",
     "type": "function"
   },
-  {
-    "inputs": [],
-    "name": "isStore",
-    "outputs": [],
-    "stateMutability": "view",
-    "type": "function"
-  },
   {
     "inputs": [
       {