Added async precompile (#1160)

* Added async precompile

* Fixed comments

localnet.just

@@ -1,7 +1,7 @@
 chain_id := "warden_1337-1"
 shulgin := "warden1d652c9nngq5cneak2whyaqa4g9ehr8pstxj0r5"
 shulgin_mnemonic := "exclude try nephew main caught favorite tone degree lottery device tissue tent ugly mouse pelican gasp lava flush pen river noise remind balcony emerge"
-warden-precompiles := '["0x0000000000000000000000000000000000000900", "0x0000000000000000000000000000000000000901", "0x0000000000000000000000000000000000000902"]'
+warden-precompiles := '["0x0000000000000000000000000000000000000900", "0x0000000000000000000000000000000000000901", "0x0000000000000000000000000000000000000902", "0x0000000000000000000000000000000000000903"]'
 
 # run a single-node chain locally, use "bin" to specify the binary name
 start bin="wardend" install="true":

precompiles/act/Types.abi

@@ -0,0 +1 @@
+[]

precompiles/async/IAsync.sol

@@ -0,0 +1,105 @@
+// SPDX-License-Identifier: LGPL-3.0-only
+pragma solidity >=0.8.18;
+
+import "../common/Types.sol";
+
+/// @dev The IAsync contract's address.
+address constant IASYNC_PRECOMPILE_ADDRESS = 0x0000000000000000000000000000000000000903;
+
+/// @dev The IAsync contract's instance.
+IAsync constant IASYNC_CONTRACT = IAsync(IASYNC_PRECOMPILE_ADDRESS);
+
+struct Future {
+    uint64 id;
+    address creator;
+    string handler;
+    bytes input;
+}
+
+enum FutureVoteType {
+    Unspecified,
+    Verified,
+    Rejected
+}
+
+struct FutureVote {
+    uint64 futureId;
+    bytes Voter;
+    FutureVoteType vote;
+}
+
+struct FutureResult { 
+    uint64 id;
+    bytes output;
+    bytes submitter;
+}
+
+struct FutureResponse {
+    Future future;
+    FutureVote[] votes;
+    FutureResult result;
+}
+
+struct PendingFuturesResponse {
+    Types.PageResponse pagination;
+    Future[] futures;
+}
+
+struct FuturesResponse {
+    Types.PageResponse pagination;
+    FutureResponse[] futures;
+}
+
+struct FutureByIdResponse {
+    Future future;
+}
+
+/**
+ * @author Warden Team
+ * @title x/async Interface
+ * @dev The interface through which users and solidity contracts will interact with x/async.
+ * @custom:address 0x0000000000000000000000000000000000000903
+ */
+interface IAsync {
+    /// @dev Defines a method to add a future.
+    /// @param handler The unique name of the handler
+    /// @param input The handler's input
+    /// @return futureId The id of the future
+    function addFuture(
+        string calldata handler,
+        bytes calldata input
+    ) external returns (uint64 futureId);
+
+    /// @dev Defines a method to query future by id.
+    /// @param futureId The future id
+    /// @return response The future
+    function futureById(
+        uint64 futureId
+    ) external view returns (FutureByIdResponse memory response);
+
+    /// @dev Defines a method to query futures.
+    /// @param pagination The pagination details
+    /// @param creator Optional creator address filter
+    /// @return response The paged futures
+    function futures(
+        Types.PageRequest calldata pagination,
+        address creator
+    ) external view returns (FuturesResponse memory response);
+
+    /// @dev Defines a method to query pending futures.
+    /// @param pagination The pagination details
+    /// @return response The paged futures
+    function pendingFutures(
+        Types.PageRequest calldata pagination
+    ) external view returns (PendingFuturesResponse memory response);
+
+    /// @dev CreateFuture defines an Event emitted when a future is created.
+    /// @param creator The address of the creator
+    /// @param futureId The future Id
+    /// @param handler The name of the handler
+    event CreateFuture(
+        uint64 indexed futureId,
+        address indexed creator,
+        string handler
+    );
+}

precompiles/async/Types.abi

@@ -0,0 +1 @@
+[]