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Diffstat (limited to 'node_modules/core-js/modules/_set-proto.js')
-rw-r--r-- | node_modules/core-js/modules/_set-proto.js | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/node_modules/core-js/modules/_set-proto.js b/node_modules/core-js/modules/_set-proto.js new file mode 100644 index 000000000..8d5dad3fd --- /dev/null +++ b/node_modules/core-js/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 +};
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