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Diffstat (limited to 'node_modules/es-abstract/2017/IsRegExp.js')
-rw-r--r--node_modules/es-abstract/2017/IsRegExp.js24
1 files changed, 24 insertions, 0 deletions
diff --git a/node_modules/es-abstract/2017/IsRegExp.js b/node_modules/es-abstract/2017/IsRegExp.js
new file mode 100644
index 000000000..fdf2323ff
--- /dev/null
+++ b/node_modules/es-abstract/2017/IsRegExp.js
@@ -0,0 +1,24 @@
+'use strict';
+
+var GetIntrinsic = require('../GetIntrinsic');
+
+var $match = GetIntrinsic('%Symbol.match%', true);
+
+var hasRegExpMatcher = require('is-regex');
+
+var ToBoolean = require('./ToBoolean');
+
+// https://ecma-international.org/ecma-262/6.0/#sec-isregexp
+
+module.exports = function IsRegExp(argument) {
+ if (!argument || typeof argument !== 'object') {
+ return false;
+ }
+ if ($match) {
+ var isRegExp = argument[$match];
+ if (typeof isRegExp !== 'undefined') {
+ return ToBoolean(isRegExp);
+ }
+ }
+ return hasRegExpMatcher(argument);
+};