From aaa7968da52023a2f9fd1565f3d22e03655ac48b Mon Sep 17 00:00:00 2001
From: Zehui Zheng <work996mail@gmail.com>
Date: Wed, 22 Nov 2023 01:21:36 +0800
Subject: [PATCH] feat!: remove `LibInput`

---
 .../rollups/.changeset/late-masks-raise.md    |  5 ++
 .../rollups/contracts/library/LibInput.sol    | 47 -------------------
 2 files changed, 5 insertions(+), 47 deletions(-)
 create mode 100644 onchain/rollups/.changeset/late-masks-raise.md
 delete mode 100644 onchain/rollups/contracts/library/LibInput.sol

diff --git a/onchain/rollups/.changeset/late-masks-raise.md b/onchain/rollups/.changeset/late-masks-raise.md
new file mode 100644
index 00000000..766aa4e4
--- /dev/null
+++ b/onchain/rollups/.changeset/late-masks-raise.md
@@ -0,0 +1,5 @@
+---
+"@cartesi/rollups": major
+---
+
+Library `LibInput` is removed.
diff --git a/onchain/rollups/contracts/library/LibInput.sol b/onchain/rollups/contracts/library/LibInput.sol
deleted file mode 100644
index 1cae79cb..00000000
--- a/onchain/rollups/contracts/library/LibInput.sol
+++ /dev/null
@@ -1,47 +0,0 @@
-// (c) Cartesi and individual authors (see AUTHORS)
-// SPDX-License-Identifier: Apache-2.0 (see LICENSE)
-
-pragma solidity ^0.8.8;
-
-import {CanonicalMachine} from "../common/CanonicalMachine.sol";
-
-/// @title Input Library
-library LibInput {
-    using CanonicalMachine for CanonicalMachine.Log2Size;
-
-    /// @notice Raised when input is larger than the machine limit.
-    error InputSizeExceedsLimit();
-
-    /// @notice Summarize input data in a single hash.
-    /// @param sender `msg.sender`
-    /// @param blockNumber `block.number`
-    /// @param blockTimestamp `block.timestamp`
-    /// @param input The input blob
-    /// @param inputIndex The index of the input in the input box
-    /// @return The input hash
-    function computeInputHash(
-        address sender,
-        uint256 blockNumber,
-        uint256 blockTimestamp,
-        bytes calldata input,
-        uint256 inputIndex
-    ) internal pure returns (bytes32) {
-        if (input.length > CanonicalMachine.INPUT_MAX_SIZE) {
-            revert InputSizeExceedsLimit();
-        }
-
-        bytes32 keccakMetadata = keccak256(
-            abi.encode(
-                sender,
-                blockNumber,
-                blockTimestamp,
-                0, //TODO decide how to deal with epoch index
-                inputIndex // input index in the input box
-            )
-        );
-
-        bytes32 keccakInput = keccak256(input);
-
-        return keccak256(abi.encode(keccakMetadata, keccakInput));
-    }
-}