1176396 - Set doesn't throw an error when called as a function

Status: RESOLVED DUPLICATE of bug 1083752

(Core :: JavaScript Engine, defect, P4)

Description

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User Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:38.0) Gecko/20100101 Firefox/38.0
Build ID: 20150511103303

Steps to reproduce:

var set = Set("abc");


Actual results:

Set was called as a function and it appears to create a Set object, just like if it was called with the keyword `new`.


Expected results:

According to the EcmaScript 6 standard, Set must not be called as a function and it should throw an error whenever that action is performed.

http://people.mozilla.org/~jorendorff/es6-draft.html#sec-set-constructor

The Set constructor is the %Set% intrinsic object and the initial value of the Set property of the global object. When called as a constructor it creates and initializes a new Set object. Set is not intended to be called as a function and will throw an exception when called in that manner.