From 71b5ce7de2c1d7fb3796275b01eb929809bd10d0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?R=C5=ABdolfs=20O=C5=A1i=C5=86=C5=A1?= <rudolfs@osins.org>
Date: Tue, 11 Oct 2022 16:47:42 +0200
Subject: [PATCH] Remove unused polyfills
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Signed-off-by: Rūdolfs Ošiņš <rudolfs@osins.org>
---
 src/polyfills/enc-utils.js            | 101 --------------------------
 src/polyfills/typedarray-to-buffer.js |  18 -----
 vite.config.ts                        |   6 --
 3 files changed, 125 deletions(-)
 delete mode 100644 src/polyfills/enc-utils.js
 delete mode 100644 src/polyfills/typedarray-to-buffer.js

diff --git a/src/polyfills/enc-utils.js b/src/polyfills/enc-utils.js
deleted file mode 100644
index 1b559af63..000000000
--- a/src/polyfills/enc-utils.js
+++ /dev/null
@@ -1,101 +0,0 @@
-/* eslint-disable @typescript-eslint/naming-convention */
-/* eslint-disable @typescript-eslint/no-var-requires */
-/* eslint-disable @typescript-eslint/explicit-module-boundary-types */
-
-"use strict";
-
-import { Buffer } from "buffer/";
-import typedarrayToBuffer from "typedarray-to-buffer";
-
-const ENC_UTF8 = "utf8";
-const ENC_HEX = "hex";
-const STRING_ZERO = "0";
-
-export function bufferToArray(buf) {
-  return new Uint8Array(buf);
-}
-
-export function bufferToUtf8(buf) {
-  return buf.toString(ENC_UTF8);
-}
-
-export function bufferToHex(buf, prefixed = false) {
-  const hex = buf.toString(ENC_HEX);
-  return prefixed ? addHexPrefix(hex) : hex;
-}
-
-export function utf8ToBuffer(utf8) {
-  return Buffer.from(utf8, ENC_UTF8);
-}
-
-export function utf8ToArray(utf8) {
-  return bufferToArray(utf8ToBuffer(utf8));
-}
-
-export function hexToArray(hex) {
-  return bufferToArray(hexToBuffer(hex));
-}
-
-export function hexToBuffer(hex) {
-  return Buffer.from(removeHexPrefix(hex), ENC_HEX);
-}
-
-export function removeHexPrefix(hex) {
-  return hex.replace(/^0x/, "");
-}
-
-export function addHexPrefix(hex) {
-  return hex.startsWith("0x") ? hex : `0x${hex}`;
-}
-
-export function arrayToBuffer(arr) {
-  return typedarrayToBuffer(arr);
-}
-
-export function arrayToHex(arr, prefixed = false) {
-  return bufferToHex(arrayToBuffer(arr), prefixed);
-}
-
-export function arrayToUtf8(arr) {
-  return bufferToUtf8(arrayToBuffer(arr));
-}
-
-export function sanitizeHex(hex) {
-  hex = removeHexPrefix(hex);
-  hex = sanitizeBytes(hex, 2);
-  if (hex) {
-    hex = addHexPrefix(hex);
-  }
-  return hex;
-}
-
-export function sanitizeBytes(str, byteSize = 8, padding = STRING_ZERO) {
-  return padLeft(str, calcByteLength(str.length, byteSize), padding);
-}
-
-export function padLeft(str, length, padding = STRING_ZERO) {
-  return padString(str, length, true, padding);
-}
-
-export function calcByteLength(length, byteSize = 8) {
-  const remainder = length % byteSize;
-  return remainder
-    ? ((length - remainder) / byteSize) * byteSize + byteSize
-    : length;
-}
-
-export function concatArrays(...args) {
-  let result = [];
-  args.forEach(arg => (result = result.concat(Array.from(arg))));
-  return new Uint8Array([...result]);
-}
-
-export function padString(str, length, left, padding = STRING_ZERO) {
-  const diff = length - str.length;
-  let result = str;
-  if (diff > 0) {
-    const pad = padding.repeat(diff);
-    result = left ? pad + str : str + pad;
-  }
-  return result;
-}
diff --git a/src/polyfills/typedarray-to-buffer.js b/src/polyfills/typedarray-to-buffer.js
deleted file mode 100644
index 0fd867140..000000000
--- a/src/polyfills/typedarray-to-buffer.js
+++ /dev/null
@@ -1,18 +0,0 @@
-/* eslint-disable @typescript-eslint/naming-convention */
-/* eslint-disable @typescript-eslint/no-var-requires */
-/* eslint-disable @typescript-eslint/explicit-module-boundary-types */
-
-import isTypedArray from "is-typedarray";
-import { Buffer } from "buffer/";
-
-export default function typedarrayToBuffer(arr) {
-  if (isTypedArray.strict(arr)) {
-    let buf = Buffer.from(arr.buffer);
-    if (arr.byteLength !== arr.buffer.byteLength) {
-      buf = buf.slice(arr.byteOffset, arr.byteOffset + arr.byteLength);
-    }
-    return buf;
-  } else {
-    return Buffer.from(arr);
-  }
-}
diff --git a/vite.config.ts b/vite.config.ts
index a3dc5b593..7783f6408 100644
--- a/vite.config.ts
+++ b/vite.config.ts
@@ -36,12 +36,6 @@ const config: UserConfig = {
     alias: {
       "@public": path.resolve("./public"),
       "@app": path.resolve("./src"),
-      "typedarray-to-buffer": path.resolve(
-        "./src/polyfills/typedarray-to-buffer.js",
-      ),
-      // "Buffer" is not defined in the published package..
-      "@walletconnect/encoding": path.resolve("./src/polyfills/enc-utils.js"),
-      "enc-utils": path.resolve("./src/polyfills/enc-utils.js"),
     },
   },
   define: {