feat(vm): add rpc and eth_getLogs cheats (#475)

* feat: add rpc and eth_getLogs cheats

* chore: fmt

* chore: remove shadowed decl

* chore: move rpc cheats into new RPC section

---------

Co-authored-by: Matt Solomon <matt@mattsolomon.dev>

src/Vm.sol

@@ -33,6 +33,18 @@ interface VmSafe {
         string url;
     }
 
+    struct EthGetLogs {
+        address emitter;
+        bytes32[] topics;
+        bytes data;
+        bytes32 blockHash;
+        uint64 blockNumber;
+        bytes32 transactionHash;
+        uint64 transactionIndex;
+        uint256 logIndex;
+        bool removed;
+    }
+
     struct DirEntry {
         string errorMessage;
         string path;
@@ -123,6 +135,16 @@ interface VmSafe {
     // Resumes gas metering (i.e. gas usage is counted again). Noop if already on.
     function resumeGasMetering() external;
 
+    // -------- RPC Methods --------
+
+    /// Gets all the logs according to specified filter.
+    function eth_getLogs(uint256 fromBlock, uint256 toBlock, address target, bytes32[] calldata topics)
+        external
+        returns (EthGetLogs[] memory logs);
+
+    // Performs an Ethereum JSON-RPC request to the current fork URL.
+    function rpc(string calldata method, string calldata params) external returns (bytes memory data);
+
     // ======== Test Configuration ========
 
     // If the condition is false, discard this run's fuzz inputs and generate new ones.

test/Vm.t.sol

@@ -9,7 +9,7 @@ contract VmTest is Test {
     // inadvertently moved between Vm and VmSafe. This test must be updated each time a function is
     // added to or removed from Vm or VmSafe.
     function test_interfaceId() public {
-        assertEq(type(VmSafe).interfaceId, bytes4(0x329f5e71), "VmSafe");
+        assertEq(type(VmSafe).interfaceId, bytes4(0x1578a242), "VmSafe");
         assertEq(type(Vm).interfaceId, bytes4(0x316cedc3), "Vm");
     }
 }