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Frontend-Learner/node_modules/devalue/src/utils.js

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+/** @type {Record<string, string>} */
+export const escaped = {
+	'<': '\\u003C',
+	'\\': '\\\\',
+	'\b': '\\b',
+	'\f': '\\f',
+	'\n': '\\n',
+	'\r': '\\r',
+	'\t': '\\t',
+	'\u2028': '\\u2028',
+	'\u2029': '\\u2029'
+};
+
+export class DevalueError extends Error {
+	/**
+	 * @param {string} message
+	 * @param {string[]} keys
+	 * @param {any} [value] - The value that failed to be serialized
+	 * @param {any} [root] - The root value being serialized
+	 */
+	constructor(message, keys, value, root) {
+		super(message);
+		this.name = 'DevalueError';
+		this.path = keys.join('');
+		this.value = value;
+		this.root = root;
+	}
+}
+
+/** @param {any} thing */
+export function is_primitive(thing) {
+	return Object(thing) !== thing;
+}
+
+const object_proto_names = /* @__PURE__ */ Object.getOwnPropertyNames(
+	Object.prototype
+)
+	.sort()
+	.join('\0');
+
+/** @param {any} thing */
+export function is_plain_object(thing) {
+	const proto = Object.getPrototypeOf(thing);
+
+	return (
+		proto === Object.prototype ||
+		proto === null ||
+		Object.getPrototypeOf(proto) === null ||
+		Object.getOwnPropertyNames(proto).sort().join('\0') === object_proto_names
+	);
+}
+
+/** @param {any} thing */
+export function get_type(thing) {
+	return Object.prototype.toString.call(thing).slice(8, -1);
+}
+
+/** @param {string} char */
+function get_escaped_char(char) {
+	switch (char) {
+		case '"':
+			return '\\"';
+		case '<':
+			return '\\u003C';
+		case '\\':
+			return '\\\\';
+		case '\n':
+			return '\\n';
+		case '\r':
+			return '\\r';
+		case '\t':
+			return '\\t';
+		case '\b':
+			return '\\b';
+		case '\f':
+			return '\\f';
+		case '\u2028':
+			return '\\u2028';
+		case '\u2029':
+			return '\\u2029';
+		default:
+			return char < ' '
+				? `\\u${char.charCodeAt(0).toString(16).padStart(4, '0')}`
+				: '';
+	}
+}
+
+/** @param {string} str */
+export function stringify_string(str) {
+	let result = '';
+	let last_pos = 0;
+	const len = str.length;
+
+	for (let i = 0; i < len; i += 1) {
+		const char = str[i];
+		const replacement = get_escaped_char(char);
+		if (replacement) {
+			result += str.slice(last_pos, i) + replacement;
+			last_pos = i + 1;
+		}
+	}
+
+	return `"${last_pos === 0 ? str : result + str.slice(last_pos)}"`;
+}
+
+/** @param {Record<string | symbol, any>} object */
+export function enumerable_symbols(object) {
+	return Object.getOwnPropertySymbols(object).filter(
+		(symbol) => Object.getOwnPropertyDescriptor(object, symbol).enumerable
+	);
+}
+
+const is_identifier = /^[a-zA-Z_$][a-zA-Z_$0-9]*$/;
+
+/** @param {string} key */
+export function stringify_key(key) {
+	return is_identifier.test(key) ? '.' + key : '[' + JSON.stringify(key) + ']';
+}