move structs into contract

Author: anna-carroll

src/Orders.sol

@@ -3,29 +3,6 @@ pragma solidity ^0.8.24;
 
 import {IERC20} from "openzeppelin-contracts/contracts/token/ERC20/IERC20.sol";
 
-/// @notice Tokens sent by the swapper as inputs to the order
-/// @dev From ERC-7683
-struct Input {
-    /// @dev The address of the ERC20 token on the origin chain
-    address token;
-    /// @dev The amount of the token to be sent
-    uint256 amount;
-}
-
-/// @notice Tokens that must be receive for a valid order fulfillment
-/// @dev From ERC-7683
-struct Output {
-    /// @dev The address of the ERC20 token on the destination chain
-    /// @dev address(0) used as a sentinel for the native token
-    address token;
-    /// @dev The amount of the token to be sent
-    uint256 amount;
-    /// @dev The address to receive the output tokens
-    address recipient;
-    /// @dev The destination chain for this output
-    uint32 chainId;
-}
-
 /// @notice Contract capable of processing fulfillment of intent-based Orders.
 abstract contract OrderDestination {
     /// @notice Emitted when an Order output is fulfilled.
@@ -54,6 +31,29 @@ abstract contract OrderDestination {
 
 /// @notice Contract capable of registering initiation of intent-based Orders.
 abstract contract OrderOrigin {
+    /// @notice Tokens sent by the swapper as inputs to the order
+    /// @dev From ERC-7683
+    struct Input {
+        /// @dev The address of the ERC20 token on the origin chain
+        address token;
+        /// @dev The amount of the token to be sent
+        uint256 amount;
+    }
+
+    /// @notice Tokens that must be receive for a valid order fulfillment
+    /// @dev From ERC-7683
+    struct Output {
+        /// @dev The address of the ERC20 token on the destination chain
+        /// @dev address(0) used as a sentinel for the native token
+        address token;
+        /// @dev The amount of the token to be sent
+        uint256 amount;
+        /// @dev The address to receive the output tokens
+        address recipient;
+        /// @dev The destination chain for this output
+        uint32 chainId;
+    }
+
     /// @notice Thrown when an Order is submitted with a deadline that has passed.
     error OrderExpired();