Initial commit

node_modules/execa/lib/utils/uint-array.js

@@ -0,0 +1,69 @@
+import {StringDecoder} from 'node:string_decoder';
+
+const {toString: objectToString} = Object.prototype;
+
+export const isArrayBuffer = value => objectToString.call(value) === '[object ArrayBuffer]';
+
+// Is either Uint8Array or Buffer
+export const isUint8Array = value => objectToString.call(value) === '[object Uint8Array]';
+
+export const bufferToUint8Array = buffer => new Uint8Array(buffer.buffer, buffer.byteOffset, buffer.byteLength);
+
+const textEncoder = new TextEncoder();
+const stringToUint8Array = string => textEncoder.encode(string);
+
+const textDecoder = new TextDecoder();
+export const uint8ArrayToString = uint8Array => textDecoder.decode(uint8Array);
+
+export const joinToString = (uint8ArraysOrStrings, encoding) => {
+	const strings = uint8ArraysToStrings(uint8ArraysOrStrings, encoding);
+	return strings.join('');
+};
+
+const uint8ArraysToStrings = (uint8ArraysOrStrings, encoding) => {
+	if (encoding === 'utf8' && uint8ArraysOrStrings.every(uint8ArrayOrString => typeof uint8ArrayOrString === 'string')) {
+		return uint8ArraysOrStrings;
+	}
+
+	const decoder = new StringDecoder(encoding);
+	const strings = uint8ArraysOrStrings
+		.map(uint8ArrayOrString => typeof uint8ArrayOrString === 'string'
+			? stringToUint8Array(uint8ArrayOrString)
+			: uint8ArrayOrString)
+		.map(uint8Array => decoder.write(uint8Array));
+	const finalString = decoder.end();
+	return finalString === '' ? strings : [...strings, finalString];
+};
+
+export const joinToUint8Array = uint8ArraysOrStrings => {
+	if (uint8ArraysOrStrings.length === 1 && isUint8Array(uint8ArraysOrStrings[0])) {
+		return uint8ArraysOrStrings[0];
+	}
+
+	return concatUint8Arrays(stringsToUint8Arrays(uint8ArraysOrStrings));
+};
+
+const stringsToUint8Arrays = uint8ArraysOrStrings => uint8ArraysOrStrings.map(uint8ArrayOrString => typeof uint8ArrayOrString === 'string'
+	? stringToUint8Array(uint8ArrayOrString)
+	: uint8ArrayOrString);
+
+export const concatUint8Arrays = uint8Arrays => {
+	const result = new Uint8Array(getJoinLength(uint8Arrays));
+
+	let index = 0;
+	for (const uint8Array of uint8Arrays) {
+		result.set(uint8Array, index);
+		index += uint8Array.length;
+	}
+
+	return result;
+};
+
+const getJoinLength = uint8Arrays => {
+	let joinLength = 0;
+	for (const uint8Array of uint8Arrays) {
+		joinLength += uint8Array.length;
+	}
+
+	return joinLength;
+};