1 files changed, 32 insertions, 0 deletions
diff --git a/node_modules/es6-map/is-implemented.js b/node_modules/es6-map/is-implemented.js
new file mode 100644
index 000000000..cd3b8f23d
--- /dev/null
+++ b/node_modules/es6-map/is-implemented.js
@@ -0,0 +1,32 @@
+'use strict';
+
+module.exports = function () {
+	var map, iterator, result;
+	if (typeof Map !== 'function') return false;
+	try {
+		// WebKit doesn't support arguments and crashes
+		map = new Map([['raz', 'one'], ['dwa', 'two'], ['trzy', 'three']]);
+	} catch (e) {
+		return false;
+	}
+	if (String(map) !== '[object Map]') return false;
+	if (map.size !== 3) return false;
+	if (typeof map.clear !== 'function') return false;
+	if (typeof map.delete !== 'function') return false;
+	if (typeof map.entries !== 'function') return false;
+	if (typeof map.forEach !== 'function') return false;
+	if (typeof map.get !== 'function') return false;
+	if (typeof map.has !== 'function') return false;
+	if (typeof map.keys !== 'function') return false;
+	if (typeof map.set !== 'function') return false;
+	if (typeof map.values !== 'function') return false;
+
+	iterator = map.entries();
+	result = iterator.next();
+	if (result.done !== false) return false;
+	if (!result.value) return false;
+	if (result.value[0] !== 'raz') return false;
+	if (result.value[1] !== 'one') return false;
+
+	return true;
+};