project bootstrap

2023-11-25 18:12:47 -05:00
parent 5cd875ae80
commit 6ef22d88f9
39139 changed files with 4944609 additions and 2 deletions
@@ -0,0 +1,19 @@
+'use strict';
+
+var callBound = require('call-bind/callBound');
+
+var $SymbolValueOf = callBound('Symbol.prototype.valueOf', true);
+
+var Type = require('./Type');
+
+// https://262.ecma-international.org/9.0/#sec-thissymbolvalue
+
+module.exports = function thisSymbolValue(value) {
+	if (!$SymbolValueOf) {
+		throw new SyntaxError('Symbols are not supported; thisSymbolValue requires that `value` be a Symbol or a Symbol object');
+	}
+	if (Type(value) === 'Symbol') {
+		return value;
+	}
+	return $SymbolValueOf(value);
+};