[arrow] 01/01: always use the global TextDecoder and TextEncoder

[ptaylor]

This is an automated email from the ASF dual-hosted git repository.

ptaylor pushed a commit to branch ARROW-12578
in repository https://gitbox.apache.org/repos/asf/arrow.git

commit 2315e1316941fc2f4c30b28b38dfc4d9d0585133
Author: Paul Taylor <paul.e.tay...@me.com>
AuthorDate: Sat May 15 00:03:54 2021 -0500

    always use the global TextDecoder and TextEncoder
---
 js/src/util/utf8.ts | 26 ++++----------------------
 1 file changed, 4 insertions(+), 22 deletions(-)

diff --git a/js/src/util/utf8.ts b/js/src/util/utf8.ts
index 4e04a8e..b592a07 100644
--- a/js/src/util/utf8.ts
+++ b/js/src/util/utf8.ts
@@ -21,28 +21,10 @@ import {
     TextEncoder as TextEncoderPolyfill,
 } from 'text-encoding-utf-8';
 
-/** @ignore @suppress {missingRequire} */
-const _Buffer = eval("typeof Buffer === 'function' ? Buffer : null");
+const decoder = new (typeof TextDecoder !== 'undefined' ? TextDecoder : 
TextDecoderPolyfill)('utf-8');
 /** @ignore */
-const useNativeEncoders = typeof TextDecoder === 'function' && typeof 
TextEncoder === 'function';
+export const decodeUtf8 = (buffer?: ArrayBuffer | ArrayBufferView) => 
decoder.decode(buffer);
 
+const encoder = new (typeof TextEncoder !== 'undefined' ? TextEncoder : 
TextEncoderPolyfill)();
 /** @ignore */
-export const decodeUtf8 = ((TextDecoder) => {
-    if (useNativeEncoders || !_Buffer) {
-        const decoder = new TextDecoder('utf-8');
-        return (buffer?: ArrayBuffer | ArrayBufferView) => 
decoder.decode(buffer);
-    }
-    return (input: ArrayBufferLike | ArrayBufferView) => {
-        const { buffer, byteOffset, length } = toUint8Array(input);
-        return _Buffer.from(buffer, byteOffset, length).toString();
-    };
-})(typeof TextDecoder !== 'undefined' ? TextDecoder : TextDecoderPolyfill);
-
-/** @ignore */
-export const encodeUtf8 = ((TextEncoder) => {
-    if (useNativeEncoders || !_Buffer) {
-        const encoder = new TextEncoder();
-        return (value?: string) => encoder.encode(value);
-    }
-    return (input = '') => toUint8Array(_Buffer.from(input, 'utf8'));
-})(typeof TextEncoder !== 'undefined' ? TextEncoder : TextEncoderPolyfill);
+export const encodeUtf8 = (value?: string) => encoder.encode(value);