Welcome to mirror list, hosted at ThFree Co, Russian Federation.

github.com/npm/cli.git - Unnamed repository; edit this file 'description' to name the repository.
summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
Diffstat (limited to 'node_modules/es-abstract/2015/OrdinaryHasInstance.js')
-rw-r--r--node_modules/es-abstract/2015/OrdinaryHasInstance.js25
1 files changed, 25 insertions, 0 deletions
diff --git a/node_modules/es-abstract/2015/OrdinaryHasInstance.js b/node_modules/es-abstract/2015/OrdinaryHasInstance.js
new file mode 100644
index 000000000..51abe26d5
--- /dev/null
+++ b/node_modules/es-abstract/2015/OrdinaryHasInstance.js
@@ -0,0 +1,25 @@
+'use strict';
+
+var GetIntrinsic = require('../GetIntrinsic');
+
+var $TypeError = GetIntrinsic('%TypeError%');
+
+var Get = require('./Get');
+var IsCallable = require('./IsCallable');
+var Type = require('./Type');
+
+// https://www.ecma-international.org/ecma-262/6.0/#sec-ordinaryhasinstance
+
+module.exports = function OrdinaryHasInstance(C, O) {
+ if (IsCallable(C) === false) {
+ return false;
+ }
+ if (Type(O) !== 'Object') {
+ return false;
+ }
+ var P = Get(C, 'prototype');
+ if (Type(P) !== 'Object') {
+ throw new $TypeError('OrdinaryHasInstance called on an object with an invalid prototype property.');
+ }
+ return O instanceof C;
+};