'use strict';
+var call = require('../internals/function-call');
+var aCallable = require('../internals/a-callable');
var anObject = require('../internals/an-object');
// `Map.prototype.emplace` method
// https://github.com/thumbsupep/proposal-upsert
module.exports = function emplace(key, handler) {
var map = anObject(this);
- var value = (map.has(key) && 'update' in handler)
- ? handler.update(map.get(key), key, map)
+ var get = aCallable(map.get);
+ var has = aCallable(map.has);
+ var set = aCallable(map.set);
+ var value = (call(has, map, key) && 'update' in handler)
+ ? handler.update(call(get, map, key), key, map)
: handler.insert(key, map);
- map.set(key, value);
+ call(set, map, key, value);
return value;
};