1 files changed, 39 insertions, 0 deletions
diff --git a/tools/eslint/node_modules/escope/node_modules/es6-map/node_modules/es5-ext/array/#/concat/shim.js b/tools/eslint/node_modules/escope/node_modules/es6-map/node_modules/es5-ext/array/#/concat/shim.js
new file mode 100644
index 0000000000..8b28e4ae03
--- /dev/null
+++ b/tools/eslint/node_modules/escope/node_modules/es6-map/node_modules/es5-ext/array/#/concat/shim.js
@@ -0,0 +1,39 @@
+'use strict';
+
+var isPlainArray = require('../../is-plain-array')
+  , toPosInt     = require('../../../number/to-pos-integer')
+  , isObject     = require('../../../object/is-object')
+
+  , isArray = Array.isArray, concat = Array.prototype.concat
+  , forEach = Array.prototype.forEach
+
+  , isSpreadable;
+
+isSpreadable = function (value) {
+	if (!value) return false;
+	if (!isObject(value)) return false;
+	if (value['@@isConcatSpreadable'] !== undefined) {
+		return Boolean(value['@@isConcatSpreadable']);
+	}
+	return isArray(value);
+};
+
+module.exports = function (item/*, …items*/) {
+	var result;
+	if (!this || !isArray(this) || isPlainArray(this)) {
+		return concat.apply(this, arguments);
+	}
+	result = new this.constructor(this.length);
+	forEach.call(this, function (val, i) { result[i] = val; });
+	forEach.call(arguments, function (arg) {
+		var base;
+		if (isSpreadable(arg)) {
+			base = result.length;
+			result.length += toPosInt(arg.length);
+			forEach.call(arg, function (val, i) { result[base + i] = val; });
+			return;
+		}
+		result.push(arg);
+	});
+	return result;
+};