From ca1a4e0cc7452724e703a6530c2e56112c307b66 Mon Sep 17 00:00:00 2001
From: alvrs <alvarius@lattice.xyz>
Date: Tue, 17 May 2022 14:23:04 +0100
Subject: [PATCH] feat(@mud/utils): add keccak256 hash function that accepts
 string inputs

---
 packages/utils/package.json |  4 +++-
 packages/utils/src/hash.ts  |  5 +++++
 packages/utils/src/index.ts |  1 +
 yarn.lock                   | 33 ++++++++-------------------------
 4 files changed, 17 insertions(+), 26 deletions(-)
 create mode 100644 packages/utils/src/hash.ts

diff --git a/packages/utils/package.json b/packages/utils/package.json
index f8fd82ed44..b6a5a91434 100644
--- a/packages/utils/package.json
+++ b/packages/utils/package.json
@@ -12,6 +12,7 @@
     "@rollup/plugin-node-resolve": "^13.1.3",
     "@rollup/plugin-typescript": "^8.3.1",
     "@types/jest": "^27.4.1",
+    "ethers": "^5.6.6",
     "jest": "^27.5.1",
     "mobx": "^6.5.0",
     "proxy-deep": "^3.1.1",
@@ -27,6 +28,7 @@
   "peerDependencies": {
     "mobx": "^6.5.0",
     "proxy-deep": "^3.1.1",
-    "rxjs": "^7.5.5"
+    "rxjs": "^7.5.5",
+    "ethers": "^5.6.6"
   }
 }
diff --git a/packages/utils/src/hash.ts b/packages/utils/src/hash.ts
new file mode 100644
index 0000000000..ad53e3828a
--- /dev/null
+++ b/packages/utils/src/hash.ts
@@ -0,0 +1,5 @@
+import { keccak256 as keccak256Bytes, toUtf8Bytes } from "ethers/lib/utils";
+
+export function keccak256(data: string) {
+  return keccak256Bytes(toUtf8Bytes(data));
+}
diff --git a/packages/utils/src/index.ts b/packages/utils/src/index.ts
index 363deac8e4..c79bb4b35f 100644
--- a/packages/utils/src/index.ts
+++ b/packages/utils/src/index.ts
@@ -12,5 +12,6 @@ export * from "./promise";
 export * from "./sleep";
 export * from "./iterable";
 export * from "./area";
+export * from "./hash";
 
 export type { Cached, PromiseValue, ValueOf, Area, Coord } from "./types";
diff --git a/yarn.lock b/yarn.lock
index 7400bcb779..c790add7a7 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2530,12 +2530,12 @@
   resolved "https://registry.yarnpkg.com/@types/prop-types/-/prop-types-15.7.5.tgz#5f19d2b85a98e9558036f6a3cacc8819420f05cf"
   integrity sha512-JCB8C6SnDoQf0cNycqd/35A7MjcnK+ZTqE7judS6o7utxUCg6imJg3QK2qzHKszlTjcj2cn+NwMB2i96ubpj7w==
 
-"@types/react-dom@^17.0.14":
-  version "17.0.17"
-  resolved "https://registry.yarnpkg.com/@types/react-dom/-/react-dom-17.0.17.tgz#2e3743277a793a96a99f1bf87614598289da68a1"
-  integrity sha512-VjnqEmqGnasQKV0CWLevqMTXBYG9GbwuE6x3VetERLh0cq2LTptFE73MrQi2S7GkKXCf2GgwItB/melLnxfnsg==
+"@types/react-dom@^18.0.4":
+  version "18.0.4"
+  resolved "https://registry.yarnpkg.com/@types/react-dom/-/react-dom-18.0.4.tgz#dcbcadb277bcf6c411ceff70069424c57797d375"
+  integrity sha512-FgTtbqPOCI3dzZPZoC2T/sx3L34qxy99ITWn4eoSA95qPyXDMH0ALoAqUp49ITniiJFsXUVBtalh/KffMpg21Q==
   dependencies:
-    "@types/react" "^17"
+    "@types/react" "*"
 
 "@types/react@*":
   version "18.0.9"
@@ -2546,7 +2546,7 @@
     "@types/scheduler" "*"
     csstype "^3.0.2"
 
-"@types/react@^17", "@types/react@^17.0.43":
+"@types/react@^17.0.43":
   version "17.0.45"
   resolved "https://registry.yarnpkg.com/@types/react/-/react-17.0.45.tgz#9b3d5b661fd26365fefef0e766a1c6c30ccf7b3f"
   integrity sha512-YfhQ22Lah2e3CHPsb93tRwIGNiSwkuz1/blk4e6QrWS0jQzCSNbGLtOEYhPg02W0yGTTmpajp7dCTbBAMN3qsg==
@@ -3360,14 +3360,6 @@ buffer@^5.5.0, buffer@^5.6.0:
     base64-js "^1.3.1"
     ieee754 "^1.1.13"
 
-buffer@^6.0.3:
-  version "6.0.3"
-  resolved "https://registry.yarnpkg.com/buffer/-/buffer-6.0.3.tgz#2ace578459cc8fbe2a70aaa8f52ee63b6a74c6c6"
-  integrity sha512-FTiCpNxtwiZZHEZbcbTIcZjERVICn9yq/pDFkTl95/AxzD1naBctN7YO68riM/gLSDY7sdrMby8hofADYuuqOA==
-  dependencies:
-    base64-js "^1.3.1"
-    ieee754 "^1.2.1"
-
 builtin-modules@^3.0.0:
   version "3.3.0"
   resolved "https://registry.yarnpkg.com/builtin-modules/-/builtin-modules-3.3.0.tgz#cae62812b89801e9656336e46223e030386be7b6"
@@ -6039,7 +6031,7 @@ iconv-lite@^0.6.2:
   dependencies:
     safer-buffer ">= 2.1.2 < 3.0.0"
 
-ieee754@^1.1.13, ieee754@^1.2.1:
+ieee754@^1.1.13:
   version "1.2.1"
   resolved "https://registry.yarnpkg.com/ieee754/-/ieee754-1.2.1.tgz#8eb7a10a63fff25d15a57b001586d177d1b0d352"
   integrity sha512-dcyqhDvX1C46lXZcVqCpK+FtMRQVdIMN6/Df5js2zouUsqG7I6sFxitIC+7KYK29KdXOLHdu9zL4sFnoVQnqaA==
@@ -7122,16 +7114,7 @@ jsprim@^2.0.2:
     json-schema "0.4.0"
     verror "1.10.0"
 
-keccak256@^1.0.6:
-  version "1.0.6"
-  resolved "https://registry.yarnpkg.com/keccak256/-/keccak256-1.0.6.tgz#dd32fb771558fed51ce4e45a035ae7515573da58"
-  integrity sha512-8GLiM01PkdJVGUhR1e6M/AvWnSqYS0HaERI+K/QtStGDGlSTx2B1zTqZk4Zlqu5TxHJNTxWAdP9Y+WI50OApUw==
-  dependencies:
-    bn.js "^5.2.0"
-    buffer "^6.0.3"
-    keccak "^3.0.2"
-
-keccak@^3.0.0, keccak@^3.0.2:
+keccak@^3.0.0:
   version "3.0.2"
   resolved "https://registry.yarnpkg.com/keccak/-/keccak-3.0.2.tgz#4c2c6e8c54e04f2670ee49fa734eb9da152206e0"
   integrity sha512-PyKKjkH53wDMLGrvmRGSNWgmSxZOUqbnXwKL9tmgbFYA1iAYqW21kfR7mZXV0MlESiefxQQE9X9fTa3X+2MPDQ==