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-rw-r--r--node_modules/core-js/library/modules/_set-proto.js25
1 files changed, 25 insertions, 0 deletions
diff --git a/node_modules/core-js/library/modules/_set-proto.js b/node_modules/core-js/library/modules/_set-proto.js
new file mode 100644
index 000000000..8d5dad3fd
--- /dev/null
+++ b/node_modules/core-js/library/modules/_set-proto.js
@@ -0,0 +1,25 @@
+// Works with __proto__ only. Old v8 can't work with null proto objects.
+/* eslint-disable no-proto */
+var isObject = require('./_is-object')
+ , anObject = require('./_an-object');
+var check = function(O, proto){
+ anObject(O);
+ if(!isObject(proto) && proto !== null)throw TypeError(proto + ": can't set as prototype!");
+};
+module.exports = {
+ set: Object.setPrototypeOf || ('__proto__' in {} ? // eslint-disable-line
+ function(test, buggy, set){
+ try {
+ set = require('./_ctx')(Function.call, require('./_object-gopd').f(Object.prototype, '__proto__').set, 2);
+ set(test, []);
+ buggy = !(test instanceof Array);
+ } catch(e){ buggy = true; }
+ return function setPrototypeOf(O, proto){
+ check(O, proto);
+ if(buggy)O.__proto__ = proto;
+ else set(O, proto);
+ return O;
+ };
+ }({}, false) : undefined),
+ check: check
+}; \ No newline at end of file