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node_modules/core-js/modules/es6.reflect.set.js
| 33 lines
| 1.3 KiB
| application/javascript
| JavascriptLexer
|
| r789 | // 26.1.13 Reflect.set(target, propertyKey, V [, receiver]) | |||
| var dP = require('./_object-dp'); | ||||
| var gOPD = require('./_object-gopd'); | ||||
| var getPrototypeOf = require('./_object-gpo'); | ||||
| var has = require('./_has'); | ||||
| var $export = require('./_export'); | ||||
| var createDesc = require('./_property-desc'); | ||||
| var anObject = require('./_an-object'); | ||||
| var isObject = require('./_is-object'); | ||||
| function set(target, propertyKey, V /* , receiver */) { | ||||
| var receiver = arguments.length < 4 ? target : arguments[3]; | ||||
| var ownDesc = gOPD.f(anObject(target), propertyKey); | ||||
| var existingDescriptor, proto; | ||||
| if (!ownDesc) { | ||||
| if (isObject(proto = getPrototypeOf(target))) { | ||||
| return set(proto, propertyKey, V, receiver); | ||||
| } | ||||
| ownDesc = createDesc(0); | ||||
| } | ||||
| if (has(ownDesc, 'value')) { | ||||
| if (ownDesc.writable === false || !isObject(receiver)) return false; | ||||
| if (existingDescriptor = gOPD.f(receiver, propertyKey)) { | ||||
| if (existingDescriptor.get || existingDescriptor.set || existingDescriptor.writable === false) return false; | ||||
| existingDescriptor.value = V; | ||||
| dP.f(receiver, propertyKey, existingDescriptor); | ||||
| } else dP.f(receiver, propertyKey, createDesc(0, V)); | ||||
| return true; | ||||
| } | ||||
| return ownDesc.set === undefined ? false : (ownDesc.set.call(receiver, V), true); | ||||
| } | ||||
| $export($export.S, 'Reflect', { set: set }); | ||||